CA2506328A1 - Use of hmgb fragments as anti-inflammatory agents - Google Patents
Use of hmgb fragments as anti-inflammatory agents Download PDFInfo
- Publication number
- CA2506328A1 CA2506328A1 CA002506328A CA2506328A CA2506328A1 CA 2506328 A1 CA2506328 A1 CA 2506328A1 CA 002506328 A CA002506328 A CA 002506328A CA 2506328 A CA2506328 A CA 2506328A CA 2506328 A1 CA2506328 A1 CA 2506328A1
- Authority
- CA
- Canada
- Prior art keywords
- box
- hmgb
- polypeptide
- lys
- fragment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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Abstract
Compositions and methods are disclosed for inhibiting the release of a proinflammatory cytokine from a cell, and for inhibiting an inflammatory cytokine cascade in a patient. The compositions comprise an HMGB A box, and/or an antibody preparation that specifically binds to an HMGB B box, and/or an inhibitor of TNF biological activity. The methods comprise treating a cell or a patient with sufficient amounts of the composition to inhibit the release of the proinflammatory cytokine, or to inhibit the inflammatory cytokine cascade.
Description
USE OF HMGB FRAGMENTS AS ANTI-INFLAMMATORY AGENTS
RELATED APPLICATIONS .
This application claims the benefit of U.S. Provisional Application Nos.
60/427,841 and 60!427,846, both of which were filed on November 20, 2002. The entire teachings of both applications are incorporated herein by reference.
BACKGROUND OF THE INVENTION
Inflammation is often induced by proinflammatory cytokines, such as tumor necrosis factor (TNF), interleukin (IL)-la, IL-1(3, IL-6, platelet-activating factor (PAF), macrophage migration inhibitory factor (MIF), and other compounds.
These proinflarmnatory cytolcines are produced by several different cell types, most importantly immune cells (for example, monocytes, macrophages and neutrophils), but also non-immune cells such as fibroblasts, osteoblasts, smooth muscle cells, epithelial cells, and neurons. These proinflammatory cytokines contribute to various disorders during the early stages of an inflammatory cytolcine cascade.
Inflammatory cytokine cascades contribute to deleterious characteristics, including inflammation and apoptosis, of numerous disorders. Included are disorders characterized by both localized and systemic reactions, including, without limitation, diseases involving the gastrointestinal tract and associated tissues (such as appendicitis, peptic, gastric and duodenal ulcers, peritonitis, pancreatitis, ulcerative, pseudomembranous, acute and ischemic colitis, diverticulitis, epiglottitis, achalasia, cholangitis, cholecystitis, coeliac disease, hepatitis, Crohn's disease, enteritis, and Whipple's disease); systemic or local inflammatory diseases and conditions (such as asthma, allergy, anaphylactic shoclc, immune complex disease, _2_ organ ischemia, reperfusion injury, organ necrosis, hay fever, sepsis, septicemia, endotoxic shock, cachexia, hyperpyrexia, eosinophilic granuloma, granulomatosis, and sarcoidosis); diseases involving the urogenital system and associated tissues (such as septic abortion, epididymitis, vaginitis, prostatitis, and urethritis); diseases involving the respiratory system and associated tissues (such as bronchitis, emphysema, rhinitis, cystic fibrosis, pneumonitis, adult respiratory distress syndrome, pneumoultramicroscopicsilicovolcanoconiosis, alvealitis, bronchiolitis, pharyngitis, pleurisy, and sinusitis); diseases arising from infection by various viruses (such as influenza, respiratory syncytial virus, HIV, hepatitis B
virus, hepatitis C virus and herpes), bacteria (such as disseminated bacteremia, Dengue fever), fungi (such as candidiasis) and protozoal and multicellular parasites (such as malaria, filariasis, amebiasis, and hydatid cysts); dermatological diseases and conditions of the skin (such as burns, dermatitis, dermatomyositis, sunburn, urticaria warts, and wheals); diseases involving the cardiovascular system and associated tissues (such as vasulitis, angiitis, endocarditis, arteritis, atherosclerosis, restenosis, thrombophlebitis, pericarditis, congestive heart failure, myocarditis, myocardial ischemia, periarteritis nodosa, and rheumatic fever); diseases involving the central or peripheral nervous system and associated tissues (such as Alzheimer's disease, meningitis, encephalitis, multiple sclerosis, cerebral infarction, cerebral embolism, Guillame-Barre syndrome, neuritis, neuralgia, spinal cord injury, paralysis, and uveitis); diseases of the bones, joints, muscles and connective tissues (such as the various arthritides and arthralgias, osteomyelitis, fasciitis, Paget's disease, gout, periodontal disease, rheumatoid arthritis, and synovitis); other autoimmune and inflammatory disorders (such as myasthenia gravis, tlnyoiditis, systemic lupus erythematosus, Goodpasture's syndrome, Behcets's syndrome, allograft rejection, graft-versus-host disease, Type I diabetes, anleylosing spondylitis, Berger's disease, and Retier's syndrome); as well as various cancers, tumors and proliferative disorders (such as Hodgkins disease); and, in any case the inflammatory or immune host response to any primary disease.
The early proinflammatory cytolcines (e.g., TNF, IL-1, etc.) mediate inflammation, and induce the late release of high mobility group box 1 (HMGB1) (also known as HMG-1 and HMG1), a protein that accumulates in serum and mediates delayed lethality and further induction of early proinflammatory cytokines.
HMGB 1 was first identified as the founding member of a family of DNA-binding proteins termed lugh mobility group box (HMGB) proteins that are critical for DNA structure and stability. It was identified nearly 40 years ago as a ubiquitously expressed nuclear protein that binds double-stranded DNA without sequence specificity.
HMGB 1 binding bends DNA to promote formation and stability of nucleoprotein complexes that facilitate gene transcription of glucocorticoid receptors and RAG recombinase. The HMGB 1 molecule has three domains: two DNA
binding motifs termed HMGB A and HMGB B boxes, and an acidic carboxyl terminus. The two HMGB boxes are highly conserved ~0 amino acid, L-shaped domains. HMGB boxes are also expressed in other transcription factors including the RNA polymerase I transcription factor human upstream-binding factor and lymphoid-specific factor.
Recent evidence has implicated HMGB 1 as a cytolcine mediator of inflammatory conditions. For example, HMGB 1 has been implicated as a cytokine mediator of delayed lethality in endotoxemia. That work demonstrated that bacterial endotoxin (lipopolysaccharide (LPS)) activates monocytes/macrophages to release HMGB 1 as a late response to activation, resulting in elevated serum HMGB 1 levels that are toxic. Antibodies against HMGB 1 prevent' lethality of endotoxin even when antibody administration is delayed until after the early cytokine response.
Like other proinflammatory cytokines, HMGB 1 is a potent activator of monocytes.
Intratracheal application of HMGB 1 causes acute lung injury, and anti-HMGB 1 antibodies protect against endotoxin-induced lung edema. Serum HMGB 1 levels are elevated in critically ill patients with sepsis or hemorrhagic shoclc, and levels are significantly higher in non-survivors as compared to survivors.
HMGB 1 has also been implicated as a ligand for RAGE, a multi-ligand receptor of the immunoglobulin superfamily. RAGE is expressed on endothelial cells, smooth muscle cells, monocytes, and nerves, and ligand interaction transduces signals through MAP kinase, P21 ras, and NF-xB. The delayed kinetics of HMGB 1 appearance during endotoxemia makes it a potentially good therapeutic target, but little is known about the molecular basis of HMGB 1 signaling and toxicity.
Therefore, it would be useful to identify characteristics of HMGB 1 proinflammatory activity, particularly the active domains) responsible for this activity, and airy inhibitory effects of other domains.
SUMMARY OF THE INVENTION
The present invention is based on the discoveries that (1) the HMGB A box serves as a competitive inhibitor of HMGB proinflammatory action, (2) the HMGB
B box has the predominant proinflammatory activity of HMGB, and (3) combination therapies involving agents that inhibit HMGB biological activity and agents that inhibit TNF biological activity can be used for the treatment of conditions characterized by activation of the inflammatory cytolcine cascade. Agents that inhibit HMGB biological activity include the HMGB A box, which serves as a competitive inhibitor of HMGB prointlammatory action, and antibodies to HMGB, for example, the HMGB B box.
Accordingly, in one embodiment, the invention is a polypeptide comprising a high mobility group box protein (HMGB) A box or variant thereof, or an A box biologically active fragment or variant thereof, which can inhibit release of a proinflammatory cytolcine from a cell treated with high mobility group box (HMGB) protein, wherein the HMGB A box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) A box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RPl 1-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L~ A box. In one embodiment, the polypeptide can be in a pharmaceutically acceptable carrier.
In another embodiment, the invention is a purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, wherein the antibodies can inhibit release of a proinflammatory cytokine from a cell treated with HMGB, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23. In one embodiment, the antibodies can be in a pharmaceutically acceptable carrier.
In still another embodiment, the invention is a polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, or a B box biologically active fragment or variant thereof, but not comprising a full length HMGB, wherein the polypeptide can cause release of a proinflammatory cytokine from a cell, and wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23. In one embodiment, the polypeptide can be in a pharmaceutically acceptable carrier.
In other embodiments, the invention comprises vectors encoding the polypeptides described above.
In still another embodiment, the invention is a method of inhibiting release of a proinflaxnmatory cytolcine from a mammalian cell, the method comprising treating the cell with an amount of a purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
In another embodiment, the invention is a method of inhibiting release of a proinflammatory cytolcine from a mammalian cell, the method comprising treating the cell with a polypeptide comprising a high mobility group box protein (HMGB) A
box or variant thereof, or an A box biologically active fragment or variant thereof, which can inhibit release of a proinflammatory cytolcine from a cell treated with high mobility group box (HMGB) protein in an amount sufficient to inhibit release of the proinflammatory cytokine from the cell, wherein the HMGB A box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) A box, an HMG1L1 A
box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box. In one embodiment, the cell can be treated with a vector encoding a polypeptide comprising the A box polypeptide, A box biologically active fragment, or variant thereof.
In another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade, comprising administering to the patient a purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, in an amount sufficient to inhibit the inflammatory cytolcine cascade, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
In another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade, comprising administering to the patient a polypeptide comprising a high mobility group box protein (HMGB) A box or variant thereof, or an A box biologically active fragment or variant thereof, which can inhibit release of a proinflammatory cytolcine from a cell treated with high mobility group box (HMGB) protein, in an amount sufficient to inhibit release of the proinflammatory cytokine from the cell, wherein the HMGB
A box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) A
box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC
clone RP11-395A23, an HMG1L9 A box, an LOC122441 B box, an LOC139603 A
box, and an HMG1L8 A box.
In still another embodiment, the invention is a method of stimulating the release of a proinflammatory cytokine from a cell comprising treating the cell with a polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, or a B box biologically active fragment thereof, but not comprising a full length HMGB, in an amount sufficient to stimulate the release of the proinflammatory cytolcine from the cell, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B
box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23. In one embodiment, the cell can be treated with a vector encoding a -7_ polypeptide comprising the B box polypeptide, B box biologically active fragment, or variant thereof.
In still another embodiment, the invention is a method for effecting weight loss or treating obesity in a patient, comprising administering to the patient an effective amount of a polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, or a B box biologically active fragment or variant thereof, but not comprising a full length HMGB polypeptide, in an amount sufficient to stimulate the release of a proinflammatory cytokine from a cell, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG 1 L 10) B box, an HMGl L 1 B box, an HMG 1 L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
In another embodiment, the invention is a method of determining whether a compound inhibits inflammation, comprising combining the compound with a) a cell that releases a proinflammatory cytokine when exposed to a high mobility group box protein (HMGB) B box or a biologically active fragment thereof; and b) the HMGB B box or biologically active fragment thereof, wherein said HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC
clone RP11-395A23; then determining whether the compound inhibits the release of the proinflammatory cytokine from the cell.
In yet another embodiment, the invention is a pharmaceutical composition comprising a polypeptide comprising a high mobility group box (HMGB) A box, or a fragment or variant thereof, that can inhibit release of a proinflammatory cytokine from a cell treated with a high mobility group box (HMGB) protein and an agent that inhibits TNF biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP~70, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier. The HMGB A box is preferably a vertebrate HMGB A box, for example, a mammalian HMGB A box, more preferably, a mammalian HMGB 1 A box, for example, a human HMGB 1 A
box, and most preferably, the HMGB1 A box comprising or consisting of the sequence of SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57.
_g_ In another embodiment, the invention is a pharmaceutical composition comprising an antibody that binds an HMGB polypeptide or a biologically active fragment thereof, for example, an HMGB B box polypeptide or biologically active fragment thereof, and an agent that inhibits TNF biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier.
In still another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade comprising administering to the patient a composition comprising a polypeptide comprising a high mobility group box (HMGB) A box or a fragment or variant thereof that can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein and an agent that inhibits TNF
biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide.
In still another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade comprising administering to the patient a composition comprising an antibody that binds an HMGB polypeptide or a biologically active fragment thereof, for example, an HMGB B box polypeptide or a biologically active fragment thereof, and an agent that inhibits TNF biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic representation of HMGB 1 mutants and their activity in TNF release (pg/ml).
FIG. 2A is a histogram showing the effect of 0 ~glml, 0.01 ~,glml, 0.1 ~,glml, 1 ~,g/ml or 10 ~,g/ml of B box on TNF release (pg/ml) in RAW 264.7 cells.
FIG. 2B is a histogram showing the effect of 0 ~g/ml, 0.01 ~,g/ml, 0.1 wg/ml, 1 ~,g/ml or 10 ~.g/ml of B box on IL-1(3 release (pg/ml) in RAW 264.7 cells.
FIG. 2C is a histogram showing the effect of 0 wg/ml, 0.01 wg/ml, 0.1 ~,g/ml, 1 ~,g/ml or 10 ~g/ml of B box on IL-6 release (pg/nil) in RAW 264.7 cells.
FIG. 2D a scanned image of a blot of an RNAse protection assay, showing the effect of B box (at 0 hours, 4 hours, 8 hours, or 24 hours after administration) or vector alone (at 4 hours after administration) on TNF rnRNA expression in RAW
264.7 cells.
FIG. 2E is a histogram of the effect of HMGB 1 B box on TNF protein release (pg/ml) from RAW 264.7 cells at 0 hours, 4 hours, 8 hours, 24 hours, hours or 48 hours after administration.
FIG. 2F is a histogram of the effect of vector on TNF protein release (pg/ml) from RAW 264.7 cells at 0 hours, 4 hours, 8 hours, 24 hours, 32 hours or 48 hours after administration.
FIG. 3 is a schematic representation of HMGB 1 B box mutants and their activity in T'NF release (pg/ml).
FIG. 4A is a graph of the effect of 0 ~,g/ml, 5 wg/ml, 10 ~.g/ml, or 25 ~,g/ml of HMG1 A box protein on the release of TNF (as a percent of HMGB 1 mediated TNF release alone) from RAW 264.7 cells.
FIG. 4B is a histogram of the effect of HMGB 1 (0 or 1.5 ~g/ml), HMGB 1 A
box (0 or 10 ~,g/ml), or vector (0 or 10 ~,g/ml), alone, or in combination, on the release of TNF (as a percent of HMGB 1 mediated TNF release alone) from RAW
264.7 cells.
FIG. SA is a graph of binding of'zsI_HMGB 1 binding to RAW 264.7 cells (CPM/well) over time (minutes).
FIG. SB is a histogram of the binding of lzsl_HMGB1 in the absence of unlabeled HMGB 1 or HMGB 1 A box for 2 hours at 4°C (Total), or in the presence of 5,000 molar excess of unlabeled HMGB1 (HMGB1) or A box (A box), measured as a percent of the total CPM/well.
FIG. 6 is a histogram of the effects of HMGB 1 (HMG-1; 0 ~.glml or 1 ~,g/ml) or HMGB 1 B box (B Box; 0 ~glml or 10 ~,g/ml), alone or in combination with anti-B box antibody (25 ~.g/ml or 100 ~g/ml) or IgG (25 ~.glml or 100 ~g/ml) on TNF release from R.AW 264.7 cells (expressed as a percent of HMGB 1 mediated TNF release alone).
FIG. 7A is a scanned image of a hematoxylin and eosin stained kidney section obtained from an untreated mouse.
FIG. 7B is a scanned image of a hematoxylin and eosin stained kidney section obtained from a mouse administered HMGB 1 B box.
FIG. 7C is a scanned image of a hematoxylin and eosin stained myocardium section obtained from an untreated mouse.
FIG. 7D is a scanned image of a hematoxylin and eosin stained myocardium section obtained from a mouse administered HMGB 1 B box.
FIG. 7E is a scanned image of a hematoxylin and eosin stained lung section obtained from an untreated mouse.
FIG. 7F is a scanned image of a hematoxylin and eosin stained lung section obtained from a mouse administered HMGB 1 B box.
FIG. 7G is a scanned image of a hematoxylin and eosin stained liver section obtained from an untreated mouse.
FIG. 7H is a scanned image of a hematoxylin and eosin stained liver section obtained from a mouse administered HMGB 1 B box.
FIG. 7I is a scanned image of a hematoxylin and eosin stained liver section (high magnification) obtained from an untreated mouse.
FIG. 7J is a scanned image of a hematoxylin and eosin stained liver section (high magnification) obtained from a mouse administered HMGB 1 B box.
FIG. 8 is a graph of the level of HMGB 1 (ng/ml) in mice subjected to cecal ligation and puncture (CLP) over time (hours).
FIG. 9 is a graph of the effect of HMGB A Box (60 wg/mouse or 600 ~.g/mouse) or no treatment on survival of mice over time (days) after cecal ligation and puncture (CLP).
FIG. 1 OA is a graph of the effect of anti-HMGB 1 antibody (dark circles) or no treatment (open circles) on survival of mice over time (days) after cecal ligation and puncture (CLP).
FIG. lOB is a graph of the effect of anti-HMGB1 B box antiserum (~) or no treatment (*) on the survival (days) of mice administered lipopolysaccharide (LPS).
FIG. 1 lA is a histogram of the effect of anti-RAGE antibody or non-immune IgG on TNF release from RAW 264.7 cells treated with HMGB1 (HMG-1), lipopolysacchaxide (LPS), or HMGB1 B box (B box).
FIG. 11B is a histogram of the effect of HMGBl (HMG-1) or HMGB1 B
box (B Box) polypeptide stimulation on activation of the NF-xB-dependent ELAM
promoter (measured by luciferase activity) in RAW 264.7 cells co-transfected with a marine MyD 88-dominant negative (+MyD 88 DN) mutant (corresponding to amino acids 146-296), or empty vector (-MyD 88 DN). Data axe expressed as the ratio (fold-activation) of average luciferase values from unstimulated and stimulated cells (subtracted for background) + SD.
FIG. 12A is the amino acid sequence of a human HMG1 polypeptide (SEQ
ID NO:1).
FIG. 12B is the amino acid sequence of rat and mouse HMG1 (SEQ ID
N0:2).
FIG. 12C is the amino acid sequence of human HMG2 (SEQ ID NO:3).
FIG. 12D is the amino acid sequence of a human, mouse, and rat HMG1 A
box polypeptide (SEQ ID N0:4).
FIG. 12E is the amino acid sequence of a human, mouse, and rat HMG1 B
box polypeptide (SEQ ID NO:S).
FIG. 12F is the nucleic acid sequence of a forward primer for human HMGl (SEQ ID N0:6).
FIG. 12G is the nucleic acid sequence of a reverse primer for human HMG1 (SEQ ID N0:7).
FIG. 12H is the nucleic acid sequence of a forward primer for the carboxy terminus mutant of human HMGl (SEQ ID N0:8).
FIG. 12I is the nucleic acid sequence of a reverse primer for the carboxy terminus mutant of human HMG1 (SEQ ID N0:9).
FIG. 12J is the nucleic acid sequence of a forward primer for the amino terminus plus B box mutant of human HMGl (SEQ ID NO:10).
FIG. 12K is the nucleic acid sequence of a reverse primer for the amino terminus plus B box mutant of human HMG1 (SEQ ID NO:11).
FIG. 12L is the nucleic acid sequence of a forward primer for a B box mutant of human HMG1 (SEQ ID N0:12).
FIG. 12M is the nucleic acid sequence of a reverse primer for a B box mutant of human HMGl (SEQ ID N0:13).
FIG. 12N is the nucleic acid sequence of a forward primer for the amino terminus plus A box mutant of human HMGl (SEQ ID N0:14).
FIG. 120 is the nucleic acid sequence of a reverse primer for the amino terminus plus A box mutant of human HMG1 (SEQ ID NO:15).
FIG. 13 is a sequence alignment of HMGB 1 polypeptide sequences from rat (SEQ ID N0:2), mouse (SEQ ID NO:2), and human (SEQ ID N0:18).
FIG. 14A is the nucleic acid sequence of HMG1L5 (formerly HMG1L10) (SEQ ID NO: 32) encoding an HMGB polypeptide.
FIG. 14B is the polypeptide sequence of HMG1L5 (formerly HMG1L10) (SEQ ID NO: 24) encoding an HMGB polypeptide.
FIG. 14C is the nucleic acid sequence of HMG1L1 (SEQ ID NO: 33) encoding an HMGB polypeptide.
FIG. 14D is the polypeptide sequence of HMG1L1 (SEQ ID NO: 25) encoding an HMGB polypeptide.
FIG. 14E is the nucleic acid sequence of HMG1L4 (SEQ ID NO: 34) encoding an HMGB polypeptide.
FIG. 14F is the polypeptide sequence of HMG1L4 (SEQ ID NO: 26) encoding an HMGB polypeptide.
FIG. 14G is the nucleic acid sequence of the HMG polypeptide sequence of the BAC clone RP11-395A23 (SEQ ID NO: 35).
FIG. 14H is the polypeptide sequence of the HMG polypeptide sequence of the BAC clone RP11-395A23 (SEQ ID NO: 27) encoding an HMGB polypeptide.
FIG. 14I is the nucleic acid sequence of HMG1L9 (SEQ ID NO: 36) encoding an HMGB polypeptide.
FIG. 14J is the polypeptide sequence of HMG1L9 (SEQ ID NO: 28) encoding an HMGB polypeptide.
FIG. 14I~ is the nucleic acid sequence of LOC122441 (SEQ ID NO: 37) encoding an HMGB polypeptide.
FIG. 14L is the polypeptide sequence of LOC122441 (SEQ ID NO: 29) encoding an HMGB polypeptide.
FIG. 14M is the nucleic acid sequence of LOC139603 (SEQ ID NO: 38) encoding an HMGB polypeptide.
FIG. 14N is the polypeptide sequence of LOC139603 (SEQ ID NO: 30) encoding an HMGB polypeptide.
FIG. 140 is the nucleic acid sequence of HMG1L8 (SEQ ID NO: 39) encoding an HMGB polypeptide.
FIG. 14P is the polypeptide sequence of HMG1L8 (SEQ ID NO: 31) encoding an HMGB polypeptide.
DETAILED DESCRIPTION OF THE INVENTION
The practice of the present invention will employ, unless otherwise indicated, conventional techniques of cell culture, molecular biology, microbiology, cell biology, and immunology, which are well within the skill of the art. Such techniques are fully explained in the literature. See, e.g., Sambrook et al., 1989, "Molecular Cloning: A Laboratory Manual", Cold Spring Harbor Laboratory Press;
Ausubel et al. (1995), "Short Protocols in Molecular Biology", John Wiley and Sons; Methods in Enzymology (several volumes); Methods in Cell Biology (several volumes), and Methods in Molecular Biology (several volumes).
The present invention is based on a series of discoveries that further elucidate various characteristics of the ability of HMGB 1 to induce production of proinflammatory cytokines and inflammatory cytolcine cascades. Specifically, it has been discovered that the proinflammatory active domain of HMGB 1 is the B box (and in particular, the first 20 amino acids of the B box), and that antibodies specific to the B box will inhibit proinflammatory cytolcine release and inflammatory cytolcine cascades, with results that can alleviate deleterious symptoms caused by inflammatory cytolcine cascades. It has also been discovered that the A box is a weak agonist of inflammatory cytokine release, and competitively inhibits the proinflammatory activity of the B box and of HMGB 1. It has further been discovered that inhibitors of TNF biological activity can be combined with HMGB
A boxes and/or antibodies to HMGB1, to form pharmaceutical compositions for use in treating conditions characterized by activation of an inflammatory cytokine cascade in patients.
As used herein, an "HMGB polypeptide" or an "HMGB protein" is a substantially pure, or substantially pure and isolated polypeptide, that has been separated from components that naturally accompany it, or a synthetically or recombinantly produced polypeptide having the same amino acid sequence, and increases inflammation, and/or increases release of a proinflammatory cytokine from a cell, and/or increases the activity of the inflammatory cytokine cascade. In one embodiment, the HMGB polypeptide has one of the above biological activities.
In another embodiment, the HMGB polypeptide has two of the above biological activities. In a third embodiment, the HMGB polypeptide has all three of the above biological activities.
Preferably, the HMGB polypeptide is a mammalian HMGB polypeptide, for example, a human HMGB 1 polypeptide. Examples of an HMGB polypeptide include a polypeptide comprising or consisting of the sequence of SEQ ID NO:1, SEQ ID N0:2, SEQ ID N0:3, or SEQ ID N0:18. Preferably, the HMGB
polypeptide contains a B box DNA binding domain and/or an A box DNA binding domain, and/or an acidic carboxyl terminus as described herein. Other examples of HMGB polypeptides are described in GenBank Accession Numbers AAA64970, AAB08987, P07155, AAA20508, 529857, P09429, NP 002119, CAA31110, 502826, U00431, X67668, NP 005333, NM 016957, and J04179, the entire teachings of which are incorporated herein by reference. Additional examples of HMGB polypeptides include, but are not limited to mammalian HMG1 ((HMGB1) as described, for example, in GenBank Accession Number U51677), HMG2 ((HMGB2) as described, for example, in GenBanlc Accession Number M83665), HMG-2A ((HMGB3, HMG-4) as described, for example, in GenBank Accession Numbers NM 005342 and NP 005333), HMG14 (as described, for example, in GenBank Accession Number P05114), HMG17 (as described, for example, in GenBank Accession Number X13546), HMGI (as described, for example, in GenBanlc Accession Number L17131), and HMGY (as described, for example, in GenBank Accession Number M23618); nonmammalian HMG T1 (as described, for example, in GenBank Accession Number X02666) and HMG T2 (as described, for example, in GenBank Accession Number L32859) (rainbow trout); HMG-X (as described, for example, in GenBanlc Accession Number D30765) (Xenopus), HMG
D (as described, for example, in GenBank Accession Number X71138) and HMG Z
(as described, for example, in GenBank Accession Number X71139) (Drosophila);
NHP10 protein (HMG protein homolog NHP 1) (as described, for example, in GenBank Accession Number 248008) (yeast); non-histone chromosomal protein (as described, for example, in GenBank Accession Number 000479) (yeast); HMG 1/ 2 like protein (as described, for example, in GenBank Accession Number 211540) (wheat, maize, soybean); upstream binding factor (UBF-1) (as described, for example, in GenBank Accession Number X53390); PMS1 protein homolog 1 (as described, for example, in GenBank Accession Number U13695); single-strand recognition protein (SSRP, structure-specific recognition protein) (as described, for example, in GenBanlc Accession Number M86737); the HMG homolog TDP-1 (as described, for example, in GenBanlc Accession Number M74017); mammalian sex-determining region Y protein (SRY, testis-determining factor) (as described, for example, in GenBanlc Accession Number X53772); fungal proteins: mat-1 (as described, for example, in GenBanlc Accession Number AB009451), ste 11 (as described, for example, in GenBank Accession Number X53431) and Mc 1; SOX 14 (as described, for example, in GenBanlc Accession Number AF107043), as well as SOX 1 (as described, for example, in GenBank Accession Number Y13436), SOX 2 (as described, for example, in GenBanlc Accession Number 231560), SOX 3 (as described, for example, in GenBanlc Accession Number X71135), SOX 6 (as described, for example, in GenBanlc Accession Number AF309034), SOX 8 (as described, for example, in GenBanlc Accession Number AF226675), SOX 10 (as described, for example, in GenBanlc Accession Number AJ001183), SOX 12 (as described, for example, in GenBank Accession Ntunber X73039) and SOX 21 (as described, for example, in GenBank Accession Number AF 107044)); lymphoid specific factor (LEF-1) (as described, for example, in GenBank Accession Number X58636); T-cell specific transcription factor (TCF-1) (as described, for example, in GenBanlc Accession Number X59869); MTT1 (as described, for example, in GenBank Accession Number M62810); amd SP100-HMG nuclear autoantigen (as described, for example, in GenBank Accession Number U36501).
Other examples of HMGB proteins are polypeptides encoded by HMGB
nucleic acid sequences having GenBank Accession Numbers NG 000897 (HMG1L5 (formerly HMG1L10)) (and in particular by nucleotides 150-797 of NG 000897, as shown in FIGS. 14A and 14B); AF076674 (HMG1L1) (and in particular by nucleotides 1-633 of AF076674, as shown in FIGS. 14C and 14D; AF076676 (HMG1L4) (and in particular by nucleotides 1-564 of AF076676, as shown in FIGS.
14E and 14F); AC010149 (HMG sequence from BAC clone RPl 1-395A23) (and in particular by nucleotides 75503-76117 of AC010149), as shown in FIGS. 14G and 14H); AF165168 (HMG1L9) (and in particular by nucleotides 729-968 of AF165168, _as shown in FIGS. 14I and 14J); XM_063129 (LOC122441) (and in particular by nucleotides 319-558 of XM 063129, as shown in FIGS. 14I~ and 14L);
XM -066789 (LOC139603) (and in particular by nucleotides 1-258 of XM_066789, as shown in FIGS. 14M and 14N); and AF165167 (HMG1L8) (and in particular by nucleotides 456-666 of AF165167, as shown in FIGS. 140 and 14P) The HMGB polypeptides of the present invention also encompass sequence variants. Variants include a substantially homologous polypeptide encoded by the same genetic locus in an organism, i.e., an allelic variant, as well as other variants.
Variants also encompass polypeptides derived from other genetic loci in an organism, but having substantial homology to a polypeptide encoded by an HMGB
nucleic acid molecule, and complements and portions thereof, or having substantial homology to a polypeptide encoded by a nucleic acid molecule comprising the nucleotide sequence of an HMGB nucleic acid molecule. Examples of HMGB
nucleic acid molecules are known in the art and can be derived from HMGB
polypeptides as described herein. Variants also include polypeptides substantially homologous or identical to these polypeptides but derived from another organism, i.e., an ortholog. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by chemical synthesis. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by recombinant methods.
Preferably, the HMGB polypeptide has at least 60%, more preferably, at least 70%, 75%, 80%, 85%, or 90%, and most preferably at least 95%, sequence identity to a sequence selected from the group consisting of SEQ ID NO:1, SEQ ID N0:2, SEQ
ID N0:3 and SEQ ID N0:18, as determined using the BLAST program and parameters described herein and one of more of the biological activities of an HMGB
polypeptide.
In other embodiments, the present invention is directed to an HMGB
polypeptide fragment that has HMGB biological activity. By an "HMGB
polypeptide fragment that has HMGB biological activity" or a "biologically active HMGB fragment" is meant a fragment of an HMGB polypeptide that has the activity of an HMGB polypeptide. An example of such an HMGB polypeptide fragment is the HMGB B box, as described herein. Biologically active HMGB fragments can be generated using standard molecular biology techniques and assaying the function of the fragment by determining if the fragment, when administered to a cell, increases release of a proinflammatory cytokine from the cell, compared to a suitable control, for example, using methods described herein.
As used herein, an "HMGB A box", also referred to herein as an "A box", is a substantially pure, or substantially pure and isolated polypeptide, that has been separated from components that naturally accompany it, and consists of an amino acid sequence that is less than a full length HMGB polypeptide and which has one or more of the following biological activities: inhibiting inflammation, and/or inhibiting release of a proinflammatory cytokine from a cell, and/or decreasing the activity of the inflammatory cytokine cascade. In one embodiment, the HMGB A box polypeptide has one of the above biological activities. In another embodiment, the HMGB A box polypeptide has two of the above biological activities. In a third embodiment, the HMGB A box polypeptide has all three of the above biological activities. Preferably, the HMGB A box has no more than 10%, 20%, 25%, 30%, 40%, 50%, 60%, 70%, 80%, or 90%, of the biological activity of a full length HMGB
polypeptide. In one embodiment, the HMGB A box amino acid consists of the sequence of SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal.
An HMGB A box is also a recombinantly produced polypeptide having the same amino acid sequence as the A box sequences described above. Preferably, the HMGB A box is a mammalian HMGB A box, for example, a human HMG1 A box.
The HMGB A box polypeptides of the present invention preferably comprise or consist of the sequence of SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal.
An HMGB A box often has no moxe than about 85 amino acids and no fewer than about 4 amino acids. Examples of polypeptides having A box sequences within them include, but are not limited to, the HMGB proteins and polypeptides described herein. The A box sequences in such polypeptides can be determined and isolated using methods described herein, for example, by sequence comparisons to A
boxes described herein and testing for A box biological activity using methods described herein or other methods known in the art.
Additional examples of HMGB A box polypeptide sequences include the following sequences: PDASVNFSEF SKKCSERWKT MSAKEKGKFE
DMAKADKARY EREMKTYIPP KGET (human HMGB1; SEQ ID NO: 40);
DSSVNFAEF SKKCSERWKT MSAKEKSKFE DMAKSDKARY DREMKNYVPP
KGDK (human HMGB2; SEQ ID NO: 41); PEVPVNFAEF SKKCSERWKT
VSGKEKSKFD EMAKADKVRY DREMKDYGPA KGGK (human HMGB3; SEQ
ID NO: 42); PDASVNFSEF SKKCSERWKT MSAKEKGKFE DMAKADKARY
EREMKTYIPP KGET (HMG1L5 (formerly HMG1L10); SEQ ID NO: 43);
SDASVNFSEF SNKCSERWKT MSAKEKGKFE DMAKADKTHY
ERQMKTYIPP KGET (HMG1L1; SEQ ID NO: 44); PDASVNFSEF
SKKCSERWKA MSAKDKGKFE DMAKVDKADY EREMKTYIPP KGET
(HMG1L4; SEQ ID NO: 45); PDASVKFSEF LKKCSETWKT IFAKEKGKFE
DMAKADKAHY EREMKTYIPP KGEK (HMG sequence from BAC clone RP11-395A23; SEQ ID NO: 46); PDASINFSEF SQKCPETWKT TIAKEKGKFE
DMAKADKAHY EREMKTYIPP KGET (HMG1L9; SEQ ID NO: 47);
PDASVNSSEF SKKCSERWKTMPTKQGKFE DMAKADRAH (HMG1L8; SEQ
ID NO: 48); PDASVNFSEF SKKCLVRGKT MSAKEKGQFE AMAR.ADKARY
EREMKTYIP PKGET (LOC122441; SEQ ID NO: 49); LDASVSFSEF
SNKCSERWKT MSVKEKGKFE DMAKADKACY EREMKIYPYL KGRQ
(LOC139603; SEQ ID NO: 50); and GKGDPKKPRG KMSSYAFFVQ
TCREEHKKKH PDASVNFSEF SKKCSERWKT MSAKEKGKFE
DMAKADKARY EREMKTYIPP KGET (human HMGB 1 A box; SEQ ID NO: 57).
The HMGB A box polypeptides of the present invention also encompass sequence variants. Variants include a substantially homologous polypeptide encoded by the same genetic locus in an organism, i.e., an allelic variant, as well as other variants. Variants also encompass polypeptides derived from other genetic loci in an organism, but having substantial homology to a polypeptide encoded by an HMGB
A
box nucleic acid molecule, and complements and portions thereof, or having substantial homology to a polypeptide encoded by a nucleic acid molecule comprising the nucleotide sequence of an HMGB A box nucleic acid molecule.
Examples of HMGB A box nucleic acid molecules are lcnown in the art and can be derived from HMGB A polypeptides as described herein. Variants also include polypeptides substantially homologous or identical to these polypeptides but derived from another organism, i.e., an ortholog. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by chemical synthesis. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by recombinant methods. Preferably, an HMGB A box has at least 60%, more preferably, at least 70%, 75%, 80%, 85%, or 90%, and most preferably at least 95%, sequence identity to an HMGB A box polypeptide described herein, for example, the sequence of SEQ
ID N0:4, SEQ ID N0:22, or SEQ ID N0:57, as determined using the BLAST
program and parameters described herein, and one of more of the biological activities of an HMGB A box, as determined using methods described herein or other method known in the art.
The present invention also features A box biologically active fragments. By an "A box fragment that has A box biological activity" or an "A box biologically active fragment" is meant a fragment of an HMGB A box that has the activity of an HMGB A box, as described herein. For example, the A box fragment can decrease release of a pro-inflammatory cytokine from a vertebrate cell, decrease inflammation, and/or decrease activity of the inflammatory cytokine cascade. A box fragments can be generated using standard molecular biology techniques and assaying the function of the fragment by determining if the fragment, when administered to a cell inhibits release of a proinflammatory cytokine from the cell, for example, using methods described herein. A box biologically active fragments can be used in the methods described herein in which full length A box polypeptides are used, for example, inhibiting release of a proinflammatory cytokine from a cell, or treating a patient having a condition characterized by activation of an inflammatory cytokine cascade.
As used herein, an "HMGB B box", also referred to herein as a "B box", is a substantially pure, or substantially pure and isolated polypeptide, that has been separated from components that naturally accompany it, and consists of an amino acid sequence that is less than a full length HMGB polypeptide and has one or more of the following biological activities: increasing inflammation, increasing release of a proinflammatory cytolcine from a cell, and or increasing the activity of the inflammatory cytokine cascade. In one embodiment, the HMGB B box polypeptide has one of the above biological activities. In another embodiment, the HMGB B
box polypeptide has two of the above biological activities. In a third embodiment, the HMGB B box polypeptide has all three of the above biological activities.
Preferably, the HMGB B box has at least 25%, 30%, 40%, 50%, 60%, 70%, 80% or 90%, of the biological activity of a full length HMGB polypeptide. In another embodiment, the HMGB B box does not comprise an HMGB A box.
In another embodiment, the HMGB B box is a polypeptide that is about 90%, 80%, 70%, 60%, 50%, 40%, 35%, 30%, 25%, or 20%, of the length of a full length HMGB 1 polypeptide. In another embodiment, the HMGB B box comprises or consists of the sequence of SEQ ID NO:S, SEQ ID N0:20 or SEQ ID N0:58, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal, but is still less than the full length HMGB polypeptide. An HMGB B box polypeptide is also a recombinantly produced polypeptide having the same amino acid sequence as an HMGB B box polypeptide described above. Preferably, the HMGB B box is a mammalian HMGB B box, for example, a human HMGB 1 B box.
An HMGB B box often has no more than about 85 amino acids and no fewer than about 4 amino acids. Examples of polypeptides having B box sequences within them include, but are not limited to, the HMGB proteins and polypeptides described herein. The B box sequences in such polypeptides can be determined and isolated using methods described herein, for example, by sequence comparisons to B
boxes described herein and testing for biological activity, using methods described herein or other methods known in the art.
Additional examples of HMGB B box polypeptide sequences include the following sequences: FKDPNAPKRP PSAFFLFCSE YRPKIKGEHP
GLSIGDVAKK LGEMWNNTAA DDKQPYEKKA AKLKEKYEKD IAAY
(human HMGBl; SEQ ID NO: 51); KKDPNAPKRP PSAFFLFCSE HRPKIKSEHP
GLSIGDTAKK LGEMWSEQSA KDKQPYEQKA AKLKEKYEKD IAAY (human HMGB2; SEQ ID NO: 52); FKDPNAPKRL PSAFFLFCSE YRPKIKGEHP
GLSIGDVAKK LGEMWNNTAA DDKQPYEKKA AKLKEKYEKD IAAY
(HMG1L5 (formerly HMG1L10); SEQ ID NO: 53); FKDPNAPKRP PSAFFLFCSE
YHPKIKGEHP GLSIGDVAKK LGEMWNNTAA DDKQPGEKKA
AKLKEKYEKD IAAY (HMG1L1; SEQ ID NO: 54); FKDSNAPKRP
PSAFLLFCSE YCPKIKGEHP GLPISDVAKK LVEMWNNTFA DDKQLCEKKA
AKLKEKYKKD TATY (HMG1L4; SEQ ID NO: 55); FKDPNAPKRP
PSAFFLFCSE YRPKIKGEHP GLSIGDVVKK LAGMWNNTAA ADKQFYEKKA
AKLKEKYKKD IAAY (HMG sequence from BAC clone RP11-359A23; SEQ ID
NO: 56); and FKDPNAPKRP PSAFFLFCSE YRPKIKGEHP GLSIGDVAKK
LGEMWNNTAA DDKQPYEKKA AKLKEKYEKD IAAYRAKGKP
DAAKKGVVKA EK (human HMGB 1 box; SEQ ID NO: 58).
The HMGB B box polypeptides of the invention also encompass sequence variants. Variants include a substantially homologous polypeptide encoded by the same genetic locus in an organism, i.e., an allelic variant, as well as other variants.
Variants also encompass polypeptides derived from other genetic loci in an organism, but having substantial homology to a polypeptide encoded by an HMGB
box nucleic acid molecule, and complements and portions thereof, or having substantial homology to a polypeptide encoded by a nucleic acid molecule comprising the nucleotide sequence of an HMGB B box nucleic acid molecule.
Examples of HMGB B box nucleic acid molecules are known in the art and can be derived from HMGB B box polypeptides as described herein. Variants also include polypeptides substantially homologous or identical to these polypeptides but derived from another organism, i.e., an ortholog. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by chemical synthesis. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by recombinant methods. Preferably, a non-naturally occurring HMGB B box polypeptide has at least 60%, more preferably, at least 70%, 75%, 80%, 85%, or 90%, and most preferably at least 95%, sequence identity to the sequence of an HMGB B box as described herein, for example, the sequence of SEQ ID NO:S, SEQ ID NO:20, or SEQ ID N0:58, as determined using the BLAST program and parameters described herein. Preferably, the HMGB B box consists of the sequence of SEQ ID NO:S, SEQ
ID N0:20, or SEQ ID N0:58, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal, and has one or more of the biological activities of an HMGB B box, as determined using methods described herein or other methods known in the art.
In other embodiments, the present invention is directed to a polypeptide comprising an HMGB B box biologically active fragment that has B box biological activity, or a non-naturally occurring HMGB B box fragment In another embodiment, the present invention is directed to a polypeptide comprising a vertebrate HMGB B box or a fragment thereof that has B box biological activity, or a non-naturally occurring HMGB B box but not comprising a full length HMGB
polypeptide. By a "B box fragment that has B box biological activity" or a "B
box biologically active fragment" is meant a fragment of an HMGB B box that has the activity of an HMGB B box. For example, the B box fragment can induce release of a pro-inflammatory cytolcine from a vertebrate cell or increase inflammation, or induce the inflammatory cytolcine cascade. An example of such a B box fragment is the fragment comprising the first 20 amino acids of the HMGB 1 B box (SEQ ID
N0:16 or SEQ ID N0:23), as described herein. B box fragments can be generated using standard molecular biology techniques and assaying the function of the fragment by determining if the fragment, when administered to a cell, increases release of a proinflaxnmatory cytolcine from the cell, as compared to a suitable control, for example, using methods described herein or other methods known in the art.
HMGB polypeptides, HMGB A boxes, and HMGB B boxes, either naturally occurring or non-naturally occuiTing, include polypeptides that have sequence identity to the HMGB polypeptides, HMGB A boxes, and HMGB B boxes described herein. As used herein, two polypeptides (or a region of the polypeptides) are substantially homologous or identical when the amino acid sequences are at least about 60%, 70%, 75%, 80%, 85%, 90%, or 95% or more, homologous or identical.
The percent identity of two amino acid sequences (or two nucleic acid sequences) can be determined by aligning the sequences for optimal comparison purposes (e.g., gaps can be introduced in the sequence of a first sequence). The amino acids or nucleotides at corresponding positions are then compared, and the percent identity between the two sequences is a function of the number of identical positions shared by the sequences (i.e., % identity = # of identical positions/total # of positions x 100).
In certain embodiments, the length of the HMGB polypeptide, HMGB A box polypeptide, or HMGB B box polypeptide aligned for comparison purposes is at least 30%, preferably, at least 40%, more preferably, at least 60%, and even more preferably, at least 70%, 80%, 90%, or 100%, of the length of the reference sequence, for example, those sequence provided in FIGS. 12A-12E, FIGS. 14A-14P, and SEQ
ID NOS: 18, 20, and 22. The actual comparison of the two sequences can be accomplished by well-known methods, for example, using a mathematical algorithm.
A preferred, non-limiting example of such a mathematical algorithm is described in Karlin et al. (Proc. Natl. Acad. Sci. USA, 90:5873-5877, 1993). Such an algorithm is incorporated into the BLASTN and BLASTX programs (version 2.2) as described in Schaffer et al. (Nucleic Acids Res., 29:2994-3005, 2001). When utilizing BLAST
and Gapped BLAST programs, the default parameters of the respective programs (e.g., BLASTN) can be used. See the Internet site for the National Center for Biotechnology Information (NCBI). In one embodiment, the database searched is a non-redundant (NR) database, and parameters for sequence comparison can be set at:
no filters; Expect value of 10; Word Size of 3; the Matrix is BLOSUM62; and Gap Costs have an Existence of 11 and an Extension of 1.
Another preferred, non-limiting example of a mathematical algorithm utilized for the comparison of sequences is the algorithm of Myers and Miller, CABIOS
(1989). Such an algorithm is incorporated into the ALIGN program (version 2.0), which is part of the GCG (Accelrys) sequence alignment software package. When utilizing the ALIGN program for comparing amino acid sequences, a PAM120 weight residue table, a gap length penalty of 12 , and a gap penalty of 4 can be used.
Additional algorithms for sequence analysis are known in the art and include ADVANCE and ADAM as described in Torellis and Robotti (Comput. Appl. Biosci., 10: 3-5,1994); and FASTA described in Pearson and Lipman (Proc. Natl. Acad.
Sci USA, 85: 2444-2448, 1988).
In another embodiment, the percent identity between two amino acid sequences can be accomplished using the GAP program in the GCG software package (Accelrys, San Diego, California) using either a Blossom 63 matrix or a PAM250 matrix, and a gap weight of 12, 10, 8, 6, or 4 and a length weight of 2, 3, or 4. In yet another embodiment, the percent identity between two nucleic acid sequences can be accomplished using the GAP program in the GCG software package (Accelrys, San Diego, California), using a gap weight of 50 and a length weight of 3.
As used herein, a "cytokine" is a soluble protein or peptide which is naturally produced by mammalian cells and which acts in vivo as a humoral regulator at micro-to picomolar concentrations. Cytoleines can, either under normal or pathological conditions, modulate the functional activities of individual cells and tissues. A
proinflammatory cytolcine is a cytokine that is capable of causing any of the following physiological reactions associated with inflammation: vasodilation, hyperemia, increased permeability of vessels with associated edema, accumulation of granulocytes and mononuclear phagocytes, or deposition of fibrin. In some cases, the proinflaxnmatory cytokine can also cause apoptosis, such as in chronic heart failure, where TNF has been shown to stimulate cardiomyocyte apoptosis (Pulkki, Ann.
Med. 29: 339-343, 1997; and Tsutsui et al., Immunol. Rev. 174:192-209, 2000).
Nonlimiting examples of proinflammatory cytokines are tumor necrosis factor (TNF), interleulcin (IL)-la, IL-1(3, IL-6, IL-8, IL-18, interferon y, HMG-l, platelet-activating factor (PAF), and macrophage migration inhibitory factor (MIF).
Proinflaxnmatory cytokines are to be distinguished from anti-inflammatory cytokines, such as IL-4, IL-10, and IL-13, which are not mediators of inflammation.
In many instances, proinflammatory cytokines are produced in an inflammatory cytokine cascade, defined herein as an in vivo release of at least one proinflammatory cytokine in a mammal, wherein the cytokine release affects a physiological condition of the mammal. Thus, an inflammatory cytokine cascade is inhibited in embodiments of the invention where proinflammatory cytokine release causes a deleterious physiological condition.
As used herein, "an agent that inhibits TNF biological activity" is an agent that decreases one or more of the biological activities of TNF. Examples of TNF
biological activity include, but are not limited to, vasodilation, hyperemia, increased permeability of vessels with associated edema, accumulation of granulocytes and mononuclear phagocytes, and deposition of fibrin. Agents that inhibit TNF
biological activity include agents that inhibit (decrease) the interaction between TNF
and a TNF receptor. Examples of such agents include antibodies or antigen binding fragments thereof that bind to TNF, antibodies or antigen binding fragments that bind a TNF receptor, and molecules that bind TNF or the TNF receptor and prevent TNF/TNF receptor interaction. Such agents include, but are not limited to peptides, proteins, synthesized molecules, for example, synthetic organic molecules, naturally-occurring molecule, for example, naturally occurring organic molecules, nucleic acid molecules, and components thereof. Preferred examples of agents that inhibit TNF biological activity include infliximab (Remicade; Centocor, Inc., Malvern, Pennsylvania), etanercept (Immunex; Seattle, Washington), adalimumab (D2E7; Abbot Laboratories, Abbot Park Illinois), CDP870 (Pharmacia Corporation;
Bridgewater, New Jersey) CDP571 (Celltech Group plc, United Kingdom), Lenercept (Roche, Switzerland), and Thalidomide.
Inflammatory cytokine cascades contribute to deleterious characteristics, including inflammation and apoptosis, of numerous disorders. Included are disorders characterized by both localized and systemic reactions, including, without limitation, the disorders described herein (e.g., those conditions enumerated in the background section of this specification). Particular disorders characterized by inflammatory cytolcine cascades include, e.g., sepsis, allograft rejection, rheumatoid arthritis, asthma, lupus, adult respiratory distress syndrome, chronic obstructive pulmonary disease, psoriasis, pancreatitis, peritonitis, burns, myocardial ischemia, organic ischemia, reperfusion ischemia, Behcet's disease, graft versus host disease, Crohn's disease, ulcerative colitis, multiple sclerosis, and cachexia.
A Box Polypeptides aid Biologically Active Ff°agments Thereof As described herein, in one aspect the present invention is directed to a polypeptide composition comprising a vertebrate HMGB A box, or a biologically active fragment thereof, which can inhibit release of a proinflammatory cytokine from a cell treated with HMG, or which can be used to treat a condition characterized by activation of an inflarmnatory cytokine cascade. In certain embodiments, the invention is directed to compositions comprising an HMGB A box, or a biologically active fragment or variant thereof, in combination with one or more agents that inhibit TNF biological activity, for example, infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, or Thalidomide. Such compositions can be used to inhibit release of a proinflammatory cytokine from a vertebrate cell treated with HMG, and/or can be used to treat a condition characterized by activation of an inflammatory cytokine cascade.
When referring to the effect of any of the compositions or methods of the invention on the release of proinflammatory cytokines, the use of the terms "inhibit"
or "decrease" encompasses at least a small but measurable reduction in proinflammatory cytolcine release. In preferred embodiments, the release of the proinflammatory cytokine is inhibited by at least 20% over non-treated controls; in more preferred embodiments, the inlubition is at least 50%; in still more preferred embodiments, the inhibition is at least 70%, and in the most preferred embodiments, the inhibition is at least SO%. Inhibition can be assessed using methods described herein or other methods known in the art. Such reductions in proinflammatory cytokine release are capable of reducing the deleterious effects of an inflammatory cytokine cascade in i~ vivo embodiments.
Because HMGB A boxes (e.g., vertebrate HMGB A boxes) show a high degree of sequence conservation (see, for example, FIG. 13 for an amino acid sequence comparison of rat, mouse, and human HMGB polypeptides), it is believed that an HMGB A box (e.g., a vertebrate HMGB A box) can inhibit release of a proinflammatory cytokine from a vertebrate cell treated with HMGB. Therefore, an HMGB A box (e.g., a vertebrate HMGB A box) is within the scope of the invention.
Preferably, the HMGB A box is a vertebrate HMGB A box (e.g., a mammalian HMGB A box, such as a human HMGB 1 A box provided herein as SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57). Also included in the present invention are fragments of the HMGB 1 A box having HMGB A box biological activity, as described herein.
It would also be recognized by the spilled artisan that non-naturally occurring HMGB A boxes (or biologically active fragments thereof) can be created without undue experimentation, which would inhibit release of a proinflammatory cytolcine from a vertebrate cell treated with a vertebrate HMGB. These non-naturally occurring functional A boxes (variants) can be created by aligning amino acid sequences of HMGB A boxes from different sources, and mal~ing one or more substitutions in one of the sequences at amino acid positions where the A
boxes differ. The substitutions are preferably made using the same amino acid residue that occurs in the compared A box. Alternatively, a conservative substitution is made from either of the residues.
Conservative amino acid substitutions refer to the interchangeability of residues having similar side chains. Conservatively substituted amino acids can be grouped according to the chemical properties of their side chains. For example, one grouping of amino acids includes those amino acids have neutral and hydrophobic side chains (a, v, l, i, p, w, f, and m); another grouping is those amino acids having neutral and polar side chains (g, s, t, y, c, n, and q); another grouping is those amino acids having basic side chains (lc, r, and h); another grouping is those amino acids having acidic side chains (d and e); another grouping is those amino acids having aliphatic side chains (g, a, v, l, and i); another grouping is those amino acids having aliphatic-hydroxyl side chains (s and t); another grouping is those amino acids having amine-containing side chains (n, q, k, r, and h); another grouping is those amino acids having aromatic side chains (f, y, and w); and another grouping is those amino acids having sulfur-containing side chains (c and m). Preferred conservative amino acid substitutions groups are: r-k; e-d, y-f, l-m; v-i, and q-h.
While a conservative amino acid substitution would be expected to preserve the biological activity of an HMGB A box polypeptide, the following is one example of how non-naturally occurring A box polypeptides (variants) can be made by comparing the human HMGB 1 A box (SEQ ID NO:4) with residues 32 to 85 of SEQ
ID NO:3 of the human HMGB2 A box (SEQ ID N0:17).
HMGB 1 pdasvnfsef sklccserwkt msakekgkfe dmakadkary eremktyipp kget (SEQ ID
N0:4) HMGB2 pdssvnfaef sklccserwkt msakekskfe dmaksdkary dremlcnyvpp kgdk (SEQ ID
N0:17) A non-naturally occmTing HMGB A box can be created by, for example, by substituting the alanine (a) residue at the third position in the HMGBl A box with the serine (s) residue that occurs at the third position of the HMGB2 A box.
The skilled artisan would lcnow that the substitution would provide a functional non-naturally occurring A box because the s residue functions at that position in the HMGB2 A box. Alternatively, the third position of the HMGB 1 A box can be substituted with any amino acid that is conservative to alanine or serine, such as glycine (g), threonine (t), valine (v) or leucine (1). The skilled artisan would recognize that these conservative substitutions would be expected to result in a functional A box because A boxes are not invariant at the third position, so a conservative substitution would provide an adequate structural substitute for an amino acid that is naturally occurring at that position.
Following the above method, a great many non-naturally occurring HMGB A
boxes could be created without undue experimentation wluch would be expected to be functional, and the functionality of any particular non-naturally occurring HMGB
A box could be predicted with adequate accuracy. In any event, the functionality of any non-naturally occurring HMGB A box could be determined without undue experimentation by simply adding it to cells along with an HMGB polypeptide, and determining whether the A box inhibits release of a proinflammatory cytokine by the cells, using, for example, methods described herein.
The cell from which the A box or an A box biologically active fragment will inhibit the release of HMG-induced proinflammatory cytokines can be any cell that can be induced to produce a proinflammatory cytokine. In preferred embodiments, the cell is a mammalian cell, for example, an immune cell (e.g., a macrophage, a monocyte, or a neutrophil).
Polypeptides comprising an A box or A box biologically active fragment that can inhibit the production of any single proinflarnmatoiy cytokine, now known or later discovered, are within the scope of the present invention. Preferably, the antibodies can inhibit the production of TNF, IL-1 Vii, and/or IL-6. Most preferably, the antibodies can inhibit the production of any proinflammatory cytokines produced by the vertebrate cell.
B Box Polypeptides and Biologically Active Ff~agrnents Thereof As described herein, in one aspect the present invention is directed to a polypeptide composition comprising a vertebrate HMGB B box, or a biologically active fragment thereof, which can increase release of a proinflammatory cytokine from a vertebrate cell treated with HMGB.
When referring to the effect of any of the compositions or methods of the invention on the release of proinflammatory cytokines, the use of the term "increase"
encompasses at least a small but measurable rise in proinflammatory cytokine release. In preferred embodiments, the release of the proinflammatory cytokine is increased by at least 1.5-fold, at least 2-fold, at least 5-fold, or at least 10-fold, over non-treated controls. Such increases in proinflammatory cytolcine release are capable of increasing the effects of an inflammatory cytokine cascade in in vivo embodiments. Such polypeptides can also be used to induce weight loss and/or treat obesity.
Because all HMGB B boxes show a high degree of sequence conservation (see, for example, FIG. 13 for an amino acids sequence comparison of rat, mouse, and human HMGB polypeptides), it is believed that functional non-naturally occurring HMGB B boxes can be created without undue experimentation by making one or more conservative amino acid substitutions, or by comparing naturally occurring vertebrate B boxes from different sources and substituting analogous amino acids, as was discussed above with respect to the creation of functional non-naturally occurring A boxes. In particularly preferred embodiments, the B box comprises SEQ ID NO:S, SEQ ID NO: 20 or SEQ ID NO:58, which are the sequences (three different lengths) of the human HMGB 1 B box, or, comprises the B
box sequences from the polypeptides shown in FIGS. 14A-14P, or is a fragment of an HMGB B box that has B box biological activity. For example, a 20 amino acid sequence contained within SEQ ID NO: 20 contributes to the function of the B
box.
This 20 amino acid B-box fragment has the following amino acid sequence:
flcdpnapkrl psafflfcse (SEQ ID N0:23). Another example of an HMGB B box biologically active fragment consists of amino acids 1-20 of SEQ ID NO:S
(naplcrppsaf flfcseyrplc; SEQ ID NO: 16).
Antibodies to HMGB and HMGB B Box Polypeptides The invention is also directed to a purified preparation of antibodies that bind to an HMGB polypeptide or a biologically active fragment thereof (anti-HMGB
antibodies). The anti-HMGB antibodies can be neutralizing antibodies (i.e., can inhibit a biological activity of an HMG polypeptide or a biologically active fragment thereof, for example, the release of a proinflammatory cytokine from a vertebrate cell induced by HMG). The invention is also directed to a purified preparation of antibodies that specifically bind to a vertebrate high mobility group protein (HIVIG) B
box or a biologically active fragment thereof, but do not selectively bind to non-B
box epitopes of HMGB (anti-HMGB B box antibodies). In these embodiments, the antibodies can also be neutralizing antibodies (i.e., they can inhibit a biological activity of a B box polypeptide or biologically active fragment thereof, for example, the release of a proinflammatory cytokine from a vertebrate cell induced by HMGB).
Such antibodies can be combined with one or more agents that inhibit TNF
biological activity, for example, infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, or Thalidomide.
The term "antibody" or "purified antibody" as used herein refers to immunoglobulin molecules and immunologically active portions of immunoglobulin molecules, i.e., molecules that contain an antigen binding site that selectively binds an antigen. A molecule that selectively binds to a polypeptide of the invention is a molecule that binds to that polypeptide or a fragment thereof, but does not substantially bind other molecules in a sample, e.g., a biological sample that naturally contains the polypeptide. Preferably the antibody is at least 60%, by weight, free from proteins and naturally occurring organic molecules with which it is naturally associated. More preferably, the antibody preparation is at least 75% or 90%, and most preferably, 99%, by weight, antibody. , Examples of immunologically active portions of immunoglobulin molecules include Flab) and F(ab')Z fragments that can be generated by treating the antibody with an enzyme such as pepsin.
The invention provides polyclonal and monoclonal antibodies that selectively bind to a HMGB B box polypeptide of the invention. The term "monoclonal antibody" or "monoclonal antibody composition," as used herein, refers to a population of antibody molecules that contain only one species of an antigen binding site capable of immunoreacting with a particular epitope of a polypeptide of the invention. A monoclonal antibody composition thus typically displays a single binding affinity for a particular polypeptide of the invention with which it immunoreacts.
Polyclonal antibodies can be prepared, e.g., as described herein, by immunizing a suitable subject with a desired immunogen, e.g., an HMGB B box polypeptide of the invention or fragment thereof. The antibody titer in the immunized subject can be monitored over time by standard techniques, such as with an enzyme linked immunosorbent assay (ELISA) using immobilized polypeptide. If desired, the antibody molecules directed against the polypeptide can be isolated from the mammal (e.g., from the blood) and further purified by well-known techniques, such as protein A chromatography to obtain the IgG fraction.
At an appropriate time after immunization, e.g., when the antibody titers are highest, antibody-producing cells can be obtained from the subject and used to prepare monoclonal antibodies by standard techniques, such as the hybridoma technique originally described by Kohler and Milstein (Nature 256:495-497, 1975), the human B cell hybridoma technique (Kozbor et al., Immunol. Today 4:72, 1983), the EBV-hybridoma technique (Cole et al., Monoclonal Antibodies and Cancer Therapy, Alan R. Liss, Inc., pp. 77-96, 1985) or trioma techniques. The technology for producing hybridomas is well known (see generally Current Protocols in Immunology, Coligan et al., (eds.) John Wiley & Sons, Inc., New York, NY, 1994).
Briefly, an immortal cell line (typically a myeloma) is fused to lymphocytes (typically splenocytes) from a marmnal immunized with an immunogen as described above, and the culture supernatants of the resulting hybridoma cells are screened to identify a hybridoma producing a monoclonal antibody that binds a particular polypeptide (e.g., a polypeptide of the invention).
Any of the marry well known protocols used for fusing lymphocytes and immortalized cell lines can be applied for the purpose of generating a monoclonal antibody to a polypeptide of the invention (see, e.g., Current Protocols in Immunology, supra; Galfre et al. (Nature, 266:55052, 1977); R.H. Kenneth, in Monoclonal Antibodies: A New Dimension In Biological Analyses, Plenum Publishing Corp., New York, New York (1980); and Lerner (Yale J. Biol. Med.
54:387-402, 1981)). Moreover, the ordinarily skilled worker will appreciate that there are many variations of such methods that also would be useful.
In one alternative to preparing monoclonal antibody-secreting hybridomas, a monoclonal antibody to an HMGB B box polypeptide of the invention can be identified and isolated by screening a recombinant combinatorial immunoglobulin library (e.g., an antibody phage display library) with the polypeptide to thereby isolate immunoglobulin library members that bind the polypeptide. Kits for generating and screening phage display libraries are commercially available (e.g., the Pharmacia Recombinant Phage Antibody System, Catalog No. 27-9400-O1; and the Stratagene SurfZAPTM Phage Display Kit, Catalog No. 240612). Additionally, examples of methods and reagents particularly amenable for use in generating and screening antibody display library can be found in, for example, U.S. Patent No.
5,223,409; PCT Publication No. WO 92/18619; PCT Publication No. WO 91/17271;
PCT Publication No. WO 92/20791; PCT Publication No. WO 92/15679; PCT
Publication No. WO 93/01288; PCT Publication No. WO 92/01047; PCT
Publication No. WO 92/09690; PCT Publication No. WO 90/02809; Fuchs et al., BiofTechnology 9:1370-1372, 1991; Hay et al., Hum. Antibod. Hybridomas 3:81-85, 1992; Huse et al. (Science 246:1275-1281, 1989); and Griffiths et al. (EMBO J.
12:725-734, 1993).
Additionally, recombinant antibodies, such as chimeric and humanized monoclonal antibodies, comprising both human and non-human portions, which can be made using standard recombinant DNA techniques, are within the scope of the invention. Such chimeric and humanized monoclonal antibodies can be produced by recombinant DNA techniques known in the art.
In general, antibodies of the invention (e.g., a monoclonal antibody) can be used to isolate an HMGB B box polypeptide of the invention by standard techniques, such as affinity chromatography or immunoprecipitation. A polypeptide-specific antibody can facilitate the purification of natural polypeptide from cells and of recombinantly produced polypeptide expressed in host cells. Moreover, an antibody specific for an HMGB B box polypeptide of the invention can be used to detect the polypeptide (e.g., in a cellular lysate, cell supernatant, or tissue sample) in order to evaluate the abundance and pattern of expression of the polypeptide.
Because vertebrate HMGB polypeptides and HMGB B boxes show a high degree of sequence conservation, it is believed that vertebrate HMGB
polypeptides or HMGB B boxes in general can induce release of a proinflammatory cytokine from a vertebrate cell. Therefore, antibodies against vertebrate HMGB polypeptides or HMGB B boxes are within the scope of the invention. In one embodiment, the antibodies are neutralizing antibodies.
Preferably, the HMGB polypeptide is a mammalian HMG, as described herein, more preferably a mammalian HMGB 1 polypeptide, most preferably a human HMGB 1 polypeptide, provided herein as SEQ ID NO:1. Antibodies can also be directed against an HMGB polypeptide fragment that has HMGB polypeptide biological activity.
Preferably, the HMGB B box is a mammalian HMGB B box, more preferably a mammalian HMGB 1 B box, most preferably a human HMGB 1 B box, provided herein as SEQ ID NO:S, SEQ ID N0:20, or SEQ ID N0:58. Antibodies can also be directed against an HMGB B box fragment that has B box biological activity.
Antibodies generated against an HMGB immunogen or an HMGB B box immunogen can be obtained by administering an HMGB polypeptide, or fragment thereof, an HMGB B box or fragment thereof, or cells comprising the HMGB
polypeptide, the HMGB B box, or fragments thereof, to an animal, preferably a nonhuman, using routine protocols. The polypeptide, such as an antigenically or immunologically equivalent derivative, is used as an antigen to immunize a mouse or other animal, such as a rat or chicken. The immunogen may be associated, for example, by conjugation, with an immunogenic carrier protein, for example, bovine serum albumin (BSA) or lceyhole limpet haemocyanin (KLH). Alternatively, a multiple antigenic peptide comprising multiple copies of the HMGB or HMGB B
box or fragment, may be sufficiently antigenic to improve immunogenicity so as to obviate the need for a carrier. Bispecific antibodies, having two antigen binding domains where each is directed against a different HMGB or HMGB B box epitope, may also be produced by routine methods.
For preparation of monoclonal antibodies, any technique known in the art that provides antibodies produced by continuous cell line cultures can be used.
See, e.g., Kohler and Milstein, supra; and Cole et al., supra.
Techniques for the production of single chain antibodies (LJ.S. Pat. No.
RELATED APPLICATIONS .
This application claims the benefit of U.S. Provisional Application Nos.
60/427,841 and 60!427,846, both of which were filed on November 20, 2002. The entire teachings of both applications are incorporated herein by reference.
BACKGROUND OF THE INVENTION
Inflammation is often induced by proinflammatory cytokines, such as tumor necrosis factor (TNF), interleukin (IL)-la, IL-1(3, IL-6, platelet-activating factor (PAF), macrophage migration inhibitory factor (MIF), and other compounds.
These proinflarmnatory cytolcines are produced by several different cell types, most importantly immune cells (for example, monocytes, macrophages and neutrophils), but also non-immune cells such as fibroblasts, osteoblasts, smooth muscle cells, epithelial cells, and neurons. These proinflammatory cytokines contribute to various disorders during the early stages of an inflammatory cytolcine cascade.
Inflammatory cytokine cascades contribute to deleterious characteristics, including inflammation and apoptosis, of numerous disorders. Included are disorders characterized by both localized and systemic reactions, including, without limitation, diseases involving the gastrointestinal tract and associated tissues (such as appendicitis, peptic, gastric and duodenal ulcers, peritonitis, pancreatitis, ulcerative, pseudomembranous, acute and ischemic colitis, diverticulitis, epiglottitis, achalasia, cholangitis, cholecystitis, coeliac disease, hepatitis, Crohn's disease, enteritis, and Whipple's disease); systemic or local inflammatory diseases and conditions (such as asthma, allergy, anaphylactic shoclc, immune complex disease, _2_ organ ischemia, reperfusion injury, organ necrosis, hay fever, sepsis, septicemia, endotoxic shock, cachexia, hyperpyrexia, eosinophilic granuloma, granulomatosis, and sarcoidosis); diseases involving the urogenital system and associated tissues (such as septic abortion, epididymitis, vaginitis, prostatitis, and urethritis); diseases involving the respiratory system and associated tissues (such as bronchitis, emphysema, rhinitis, cystic fibrosis, pneumonitis, adult respiratory distress syndrome, pneumoultramicroscopicsilicovolcanoconiosis, alvealitis, bronchiolitis, pharyngitis, pleurisy, and sinusitis); diseases arising from infection by various viruses (such as influenza, respiratory syncytial virus, HIV, hepatitis B
virus, hepatitis C virus and herpes), bacteria (such as disseminated bacteremia, Dengue fever), fungi (such as candidiasis) and protozoal and multicellular parasites (such as malaria, filariasis, amebiasis, and hydatid cysts); dermatological diseases and conditions of the skin (such as burns, dermatitis, dermatomyositis, sunburn, urticaria warts, and wheals); diseases involving the cardiovascular system and associated tissues (such as vasulitis, angiitis, endocarditis, arteritis, atherosclerosis, restenosis, thrombophlebitis, pericarditis, congestive heart failure, myocarditis, myocardial ischemia, periarteritis nodosa, and rheumatic fever); diseases involving the central or peripheral nervous system and associated tissues (such as Alzheimer's disease, meningitis, encephalitis, multiple sclerosis, cerebral infarction, cerebral embolism, Guillame-Barre syndrome, neuritis, neuralgia, spinal cord injury, paralysis, and uveitis); diseases of the bones, joints, muscles and connective tissues (such as the various arthritides and arthralgias, osteomyelitis, fasciitis, Paget's disease, gout, periodontal disease, rheumatoid arthritis, and synovitis); other autoimmune and inflammatory disorders (such as myasthenia gravis, tlnyoiditis, systemic lupus erythematosus, Goodpasture's syndrome, Behcets's syndrome, allograft rejection, graft-versus-host disease, Type I diabetes, anleylosing spondylitis, Berger's disease, and Retier's syndrome); as well as various cancers, tumors and proliferative disorders (such as Hodgkins disease); and, in any case the inflammatory or immune host response to any primary disease.
The early proinflammatory cytolcines (e.g., TNF, IL-1, etc.) mediate inflammation, and induce the late release of high mobility group box 1 (HMGB1) (also known as HMG-1 and HMG1), a protein that accumulates in serum and mediates delayed lethality and further induction of early proinflammatory cytokines.
HMGB 1 was first identified as the founding member of a family of DNA-binding proteins termed lugh mobility group box (HMGB) proteins that are critical for DNA structure and stability. It was identified nearly 40 years ago as a ubiquitously expressed nuclear protein that binds double-stranded DNA without sequence specificity.
HMGB 1 binding bends DNA to promote formation and stability of nucleoprotein complexes that facilitate gene transcription of glucocorticoid receptors and RAG recombinase. The HMGB 1 molecule has three domains: two DNA
binding motifs termed HMGB A and HMGB B boxes, and an acidic carboxyl terminus. The two HMGB boxes are highly conserved ~0 amino acid, L-shaped domains. HMGB boxes are also expressed in other transcription factors including the RNA polymerase I transcription factor human upstream-binding factor and lymphoid-specific factor.
Recent evidence has implicated HMGB 1 as a cytolcine mediator of inflammatory conditions. For example, HMGB 1 has been implicated as a cytokine mediator of delayed lethality in endotoxemia. That work demonstrated that bacterial endotoxin (lipopolysaccharide (LPS)) activates monocytes/macrophages to release HMGB 1 as a late response to activation, resulting in elevated serum HMGB 1 levels that are toxic. Antibodies against HMGB 1 prevent' lethality of endotoxin even when antibody administration is delayed until after the early cytokine response.
Like other proinflammatory cytokines, HMGB 1 is a potent activator of monocytes.
Intratracheal application of HMGB 1 causes acute lung injury, and anti-HMGB 1 antibodies protect against endotoxin-induced lung edema. Serum HMGB 1 levels are elevated in critically ill patients with sepsis or hemorrhagic shoclc, and levels are significantly higher in non-survivors as compared to survivors.
HMGB 1 has also been implicated as a ligand for RAGE, a multi-ligand receptor of the immunoglobulin superfamily. RAGE is expressed on endothelial cells, smooth muscle cells, monocytes, and nerves, and ligand interaction transduces signals through MAP kinase, P21 ras, and NF-xB. The delayed kinetics of HMGB 1 appearance during endotoxemia makes it a potentially good therapeutic target, but little is known about the molecular basis of HMGB 1 signaling and toxicity.
Therefore, it would be useful to identify characteristics of HMGB 1 proinflammatory activity, particularly the active domains) responsible for this activity, and airy inhibitory effects of other domains.
SUMMARY OF THE INVENTION
The present invention is based on the discoveries that (1) the HMGB A box serves as a competitive inhibitor of HMGB proinflammatory action, (2) the HMGB
B box has the predominant proinflammatory activity of HMGB, and (3) combination therapies involving agents that inhibit HMGB biological activity and agents that inhibit TNF biological activity can be used for the treatment of conditions characterized by activation of the inflammatory cytolcine cascade. Agents that inhibit HMGB biological activity include the HMGB A box, which serves as a competitive inhibitor of HMGB prointlammatory action, and antibodies to HMGB, for example, the HMGB B box.
Accordingly, in one embodiment, the invention is a polypeptide comprising a high mobility group box protein (HMGB) A box or variant thereof, or an A box biologically active fragment or variant thereof, which can inhibit release of a proinflammatory cytolcine from a cell treated with high mobility group box (HMGB) protein, wherein the HMGB A box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) A box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RPl 1-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L~ A box. In one embodiment, the polypeptide can be in a pharmaceutically acceptable carrier.
In another embodiment, the invention is a purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, wherein the antibodies can inhibit release of a proinflammatory cytokine from a cell treated with HMGB, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23. In one embodiment, the antibodies can be in a pharmaceutically acceptable carrier.
In still another embodiment, the invention is a polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, or a B box biologically active fragment or variant thereof, but not comprising a full length HMGB, wherein the polypeptide can cause release of a proinflammatory cytokine from a cell, and wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23. In one embodiment, the polypeptide can be in a pharmaceutically acceptable carrier.
In other embodiments, the invention comprises vectors encoding the polypeptides described above.
In still another embodiment, the invention is a method of inhibiting release of a proinflaxnmatory cytolcine from a mammalian cell, the method comprising treating the cell with an amount of a purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
In another embodiment, the invention is a method of inhibiting release of a proinflammatory cytolcine from a mammalian cell, the method comprising treating the cell with a polypeptide comprising a high mobility group box protein (HMGB) A
box or variant thereof, or an A box biologically active fragment or variant thereof, which can inhibit release of a proinflammatory cytolcine from a cell treated with high mobility group box (HMGB) protein in an amount sufficient to inhibit release of the proinflammatory cytokine from the cell, wherein the HMGB A box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) A box, an HMG1L1 A
box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box. In one embodiment, the cell can be treated with a vector encoding a polypeptide comprising the A box polypeptide, A box biologically active fragment, or variant thereof.
In another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade, comprising administering to the patient a purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, in an amount sufficient to inhibit the inflammatory cytolcine cascade, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
In another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade, comprising administering to the patient a polypeptide comprising a high mobility group box protein (HMGB) A box or variant thereof, or an A box biologically active fragment or variant thereof, which can inhibit release of a proinflammatory cytolcine from a cell treated with high mobility group box (HMGB) protein, in an amount sufficient to inhibit release of the proinflammatory cytokine from the cell, wherein the HMGB
A box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) A
box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC
clone RP11-395A23, an HMG1L9 A box, an LOC122441 B box, an LOC139603 A
box, and an HMG1L8 A box.
In still another embodiment, the invention is a method of stimulating the release of a proinflammatory cytokine from a cell comprising treating the cell with a polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, or a B box biologically active fragment thereof, but not comprising a full length HMGB, in an amount sufficient to stimulate the release of the proinflammatory cytolcine from the cell, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B
box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23. In one embodiment, the cell can be treated with a vector encoding a -7_ polypeptide comprising the B box polypeptide, B box biologically active fragment, or variant thereof.
In still another embodiment, the invention is a method for effecting weight loss or treating obesity in a patient, comprising administering to the patient an effective amount of a polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, or a B box biologically active fragment or variant thereof, but not comprising a full length HMGB polypeptide, in an amount sufficient to stimulate the release of a proinflammatory cytokine from a cell, wherein the HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG 1 L 10) B box, an HMGl L 1 B box, an HMG 1 L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
In another embodiment, the invention is a method of determining whether a compound inhibits inflammation, comprising combining the compound with a) a cell that releases a proinflammatory cytokine when exposed to a high mobility group box protein (HMGB) B box or a biologically active fragment thereof; and b) the HMGB B box or biologically active fragment thereof, wherein said HMGB B box is selected from the group consisting of an HMG1L5 (formerly HMG1L10) B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC
clone RP11-395A23; then determining whether the compound inhibits the release of the proinflammatory cytokine from the cell.
In yet another embodiment, the invention is a pharmaceutical composition comprising a polypeptide comprising a high mobility group box (HMGB) A box, or a fragment or variant thereof, that can inhibit release of a proinflammatory cytokine from a cell treated with a high mobility group box (HMGB) protein and an agent that inhibits TNF biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP~70, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier. The HMGB A box is preferably a vertebrate HMGB A box, for example, a mammalian HMGB A box, more preferably, a mammalian HMGB 1 A box, for example, a human HMGB 1 A
box, and most preferably, the HMGB1 A box comprising or consisting of the sequence of SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57.
_g_ In another embodiment, the invention is a pharmaceutical composition comprising an antibody that binds an HMGB polypeptide or a biologically active fragment thereof, for example, an HMGB B box polypeptide or biologically active fragment thereof, and an agent that inhibits TNF biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier.
In still another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade comprising administering to the patient a composition comprising a polypeptide comprising a high mobility group box (HMGB) A box or a fragment or variant thereof that can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein and an agent that inhibits TNF
biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide.
In still another embodiment, the invention is a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade comprising administering to the patient a composition comprising an antibody that binds an HMGB polypeptide or a biologically active fragment thereof, for example, an HMGB B box polypeptide or a biologically active fragment thereof, and an agent that inhibits TNF biological activity, where the agent is selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic representation of HMGB 1 mutants and their activity in TNF release (pg/ml).
FIG. 2A is a histogram showing the effect of 0 ~glml, 0.01 ~,glml, 0.1 ~,glml, 1 ~,g/ml or 10 ~,g/ml of B box on TNF release (pg/ml) in RAW 264.7 cells.
FIG. 2B is a histogram showing the effect of 0 ~g/ml, 0.01 ~,g/ml, 0.1 wg/ml, 1 ~,g/ml or 10 ~.g/ml of B box on IL-1(3 release (pg/ml) in RAW 264.7 cells.
FIG. 2C is a histogram showing the effect of 0 wg/ml, 0.01 wg/ml, 0.1 ~,g/ml, 1 ~,g/ml or 10 ~g/ml of B box on IL-6 release (pg/nil) in RAW 264.7 cells.
FIG. 2D a scanned image of a blot of an RNAse protection assay, showing the effect of B box (at 0 hours, 4 hours, 8 hours, or 24 hours after administration) or vector alone (at 4 hours after administration) on TNF rnRNA expression in RAW
264.7 cells.
FIG. 2E is a histogram of the effect of HMGB 1 B box on TNF protein release (pg/ml) from RAW 264.7 cells at 0 hours, 4 hours, 8 hours, 24 hours, hours or 48 hours after administration.
FIG. 2F is a histogram of the effect of vector on TNF protein release (pg/ml) from RAW 264.7 cells at 0 hours, 4 hours, 8 hours, 24 hours, 32 hours or 48 hours after administration.
FIG. 3 is a schematic representation of HMGB 1 B box mutants and their activity in T'NF release (pg/ml).
FIG. 4A is a graph of the effect of 0 ~,g/ml, 5 wg/ml, 10 ~.g/ml, or 25 ~,g/ml of HMG1 A box protein on the release of TNF (as a percent of HMGB 1 mediated TNF release alone) from RAW 264.7 cells.
FIG. 4B is a histogram of the effect of HMGB 1 (0 or 1.5 ~g/ml), HMGB 1 A
box (0 or 10 ~,g/ml), or vector (0 or 10 ~,g/ml), alone, or in combination, on the release of TNF (as a percent of HMGB 1 mediated TNF release alone) from RAW
264.7 cells.
FIG. SA is a graph of binding of'zsI_HMGB 1 binding to RAW 264.7 cells (CPM/well) over time (minutes).
FIG. SB is a histogram of the binding of lzsl_HMGB1 in the absence of unlabeled HMGB 1 or HMGB 1 A box for 2 hours at 4°C (Total), or in the presence of 5,000 molar excess of unlabeled HMGB1 (HMGB1) or A box (A box), measured as a percent of the total CPM/well.
FIG. 6 is a histogram of the effects of HMGB 1 (HMG-1; 0 ~.glml or 1 ~,g/ml) or HMGB 1 B box (B Box; 0 ~glml or 10 ~,g/ml), alone or in combination with anti-B box antibody (25 ~.g/ml or 100 ~g/ml) or IgG (25 ~.glml or 100 ~g/ml) on TNF release from R.AW 264.7 cells (expressed as a percent of HMGB 1 mediated TNF release alone).
FIG. 7A is a scanned image of a hematoxylin and eosin stained kidney section obtained from an untreated mouse.
FIG. 7B is a scanned image of a hematoxylin and eosin stained kidney section obtained from a mouse administered HMGB 1 B box.
FIG. 7C is a scanned image of a hematoxylin and eosin stained myocardium section obtained from an untreated mouse.
FIG. 7D is a scanned image of a hematoxylin and eosin stained myocardium section obtained from a mouse administered HMGB 1 B box.
FIG. 7E is a scanned image of a hematoxylin and eosin stained lung section obtained from an untreated mouse.
FIG. 7F is a scanned image of a hematoxylin and eosin stained lung section obtained from a mouse administered HMGB 1 B box.
FIG. 7G is a scanned image of a hematoxylin and eosin stained liver section obtained from an untreated mouse.
FIG. 7H is a scanned image of a hematoxylin and eosin stained liver section obtained from a mouse administered HMGB 1 B box.
FIG. 7I is a scanned image of a hematoxylin and eosin stained liver section (high magnification) obtained from an untreated mouse.
FIG. 7J is a scanned image of a hematoxylin and eosin stained liver section (high magnification) obtained from a mouse administered HMGB 1 B box.
FIG. 8 is a graph of the level of HMGB 1 (ng/ml) in mice subjected to cecal ligation and puncture (CLP) over time (hours).
FIG. 9 is a graph of the effect of HMGB A Box (60 wg/mouse or 600 ~.g/mouse) or no treatment on survival of mice over time (days) after cecal ligation and puncture (CLP).
FIG. 1 OA is a graph of the effect of anti-HMGB 1 antibody (dark circles) or no treatment (open circles) on survival of mice over time (days) after cecal ligation and puncture (CLP).
FIG. lOB is a graph of the effect of anti-HMGB1 B box antiserum (~) or no treatment (*) on the survival (days) of mice administered lipopolysaccharide (LPS).
FIG. 1 lA is a histogram of the effect of anti-RAGE antibody or non-immune IgG on TNF release from RAW 264.7 cells treated with HMGB1 (HMG-1), lipopolysacchaxide (LPS), or HMGB1 B box (B box).
FIG. 11B is a histogram of the effect of HMGBl (HMG-1) or HMGB1 B
box (B Box) polypeptide stimulation on activation of the NF-xB-dependent ELAM
promoter (measured by luciferase activity) in RAW 264.7 cells co-transfected with a marine MyD 88-dominant negative (+MyD 88 DN) mutant (corresponding to amino acids 146-296), or empty vector (-MyD 88 DN). Data axe expressed as the ratio (fold-activation) of average luciferase values from unstimulated and stimulated cells (subtracted for background) + SD.
FIG. 12A is the amino acid sequence of a human HMG1 polypeptide (SEQ
ID NO:1).
FIG. 12B is the amino acid sequence of rat and mouse HMG1 (SEQ ID
N0:2).
FIG. 12C is the amino acid sequence of human HMG2 (SEQ ID NO:3).
FIG. 12D is the amino acid sequence of a human, mouse, and rat HMG1 A
box polypeptide (SEQ ID N0:4).
FIG. 12E is the amino acid sequence of a human, mouse, and rat HMG1 B
box polypeptide (SEQ ID NO:S).
FIG. 12F is the nucleic acid sequence of a forward primer for human HMGl (SEQ ID N0:6).
FIG. 12G is the nucleic acid sequence of a reverse primer for human HMG1 (SEQ ID N0:7).
FIG. 12H is the nucleic acid sequence of a forward primer for the carboxy terminus mutant of human HMGl (SEQ ID N0:8).
FIG. 12I is the nucleic acid sequence of a reverse primer for the carboxy terminus mutant of human HMG1 (SEQ ID N0:9).
FIG. 12J is the nucleic acid sequence of a forward primer for the amino terminus plus B box mutant of human HMGl (SEQ ID NO:10).
FIG. 12K is the nucleic acid sequence of a reverse primer for the amino terminus plus B box mutant of human HMG1 (SEQ ID NO:11).
FIG. 12L is the nucleic acid sequence of a forward primer for a B box mutant of human HMG1 (SEQ ID N0:12).
FIG. 12M is the nucleic acid sequence of a reverse primer for a B box mutant of human HMGl (SEQ ID N0:13).
FIG. 12N is the nucleic acid sequence of a forward primer for the amino terminus plus A box mutant of human HMGl (SEQ ID N0:14).
FIG. 120 is the nucleic acid sequence of a reverse primer for the amino terminus plus A box mutant of human HMG1 (SEQ ID NO:15).
FIG. 13 is a sequence alignment of HMGB 1 polypeptide sequences from rat (SEQ ID N0:2), mouse (SEQ ID NO:2), and human (SEQ ID N0:18).
FIG. 14A is the nucleic acid sequence of HMG1L5 (formerly HMG1L10) (SEQ ID NO: 32) encoding an HMGB polypeptide.
FIG. 14B is the polypeptide sequence of HMG1L5 (formerly HMG1L10) (SEQ ID NO: 24) encoding an HMGB polypeptide.
FIG. 14C is the nucleic acid sequence of HMG1L1 (SEQ ID NO: 33) encoding an HMGB polypeptide.
FIG. 14D is the polypeptide sequence of HMG1L1 (SEQ ID NO: 25) encoding an HMGB polypeptide.
FIG. 14E is the nucleic acid sequence of HMG1L4 (SEQ ID NO: 34) encoding an HMGB polypeptide.
FIG. 14F is the polypeptide sequence of HMG1L4 (SEQ ID NO: 26) encoding an HMGB polypeptide.
FIG. 14G is the nucleic acid sequence of the HMG polypeptide sequence of the BAC clone RP11-395A23 (SEQ ID NO: 35).
FIG. 14H is the polypeptide sequence of the HMG polypeptide sequence of the BAC clone RP11-395A23 (SEQ ID NO: 27) encoding an HMGB polypeptide.
FIG. 14I is the nucleic acid sequence of HMG1L9 (SEQ ID NO: 36) encoding an HMGB polypeptide.
FIG. 14J is the polypeptide sequence of HMG1L9 (SEQ ID NO: 28) encoding an HMGB polypeptide.
FIG. 14I~ is the nucleic acid sequence of LOC122441 (SEQ ID NO: 37) encoding an HMGB polypeptide.
FIG. 14L is the polypeptide sequence of LOC122441 (SEQ ID NO: 29) encoding an HMGB polypeptide.
FIG. 14M is the nucleic acid sequence of LOC139603 (SEQ ID NO: 38) encoding an HMGB polypeptide.
FIG. 14N is the polypeptide sequence of LOC139603 (SEQ ID NO: 30) encoding an HMGB polypeptide.
FIG. 140 is the nucleic acid sequence of HMG1L8 (SEQ ID NO: 39) encoding an HMGB polypeptide.
FIG. 14P is the polypeptide sequence of HMG1L8 (SEQ ID NO: 31) encoding an HMGB polypeptide.
DETAILED DESCRIPTION OF THE INVENTION
The practice of the present invention will employ, unless otherwise indicated, conventional techniques of cell culture, molecular biology, microbiology, cell biology, and immunology, which are well within the skill of the art. Such techniques are fully explained in the literature. See, e.g., Sambrook et al., 1989, "Molecular Cloning: A Laboratory Manual", Cold Spring Harbor Laboratory Press;
Ausubel et al. (1995), "Short Protocols in Molecular Biology", John Wiley and Sons; Methods in Enzymology (several volumes); Methods in Cell Biology (several volumes), and Methods in Molecular Biology (several volumes).
The present invention is based on a series of discoveries that further elucidate various characteristics of the ability of HMGB 1 to induce production of proinflammatory cytokines and inflammatory cytolcine cascades. Specifically, it has been discovered that the proinflammatory active domain of HMGB 1 is the B box (and in particular, the first 20 amino acids of the B box), and that antibodies specific to the B box will inhibit proinflammatory cytolcine release and inflammatory cytolcine cascades, with results that can alleviate deleterious symptoms caused by inflammatory cytolcine cascades. It has also been discovered that the A box is a weak agonist of inflammatory cytokine release, and competitively inhibits the proinflammatory activity of the B box and of HMGB 1. It has further been discovered that inhibitors of TNF biological activity can be combined with HMGB
A boxes and/or antibodies to HMGB1, to form pharmaceutical compositions for use in treating conditions characterized by activation of an inflammatory cytokine cascade in patients.
As used herein, an "HMGB polypeptide" or an "HMGB protein" is a substantially pure, or substantially pure and isolated polypeptide, that has been separated from components that naturally accompany it, or a synthetically or recombinantly produced polypeptide having the same amino acid sequence, and increases inflammation, and/or increases release of a proinflammatory cytokine from a cell, and/or increases the activity of the inflammatory cytokine cascade. In one embodiment, the HMGB polypeptide has one of the above biological activities.
In another embodiment, the HMGB polypeptide has two of the above biological activities. In a third embodiment, the HMGB polypeptide has all three of the above biological activities.
Preferably, the HMGB polypeptide is a mammalian HMGB polypeptide, for example, a human HMGB 1 polypeptide. Examples of an HMGB polypeptide include a polypeptide comprising or consisting of the sequence of SEQ ID NO:1, SEQ ID N0:2, SEQ ID N0:3, or SEQ ID N0:18. Preferably, the HMGB
polypeptide contains a B box DNA binding domain and/or an A box DNA binding domain, and/or an acidic carboxyl terminus as described herein. Other examples of HMGB polypeptides are described in GenBank Accession Numbers AAA64970, AAB08987, P07155, AAA20508, 529857, P09429, NP 002119, CAA31110, 502826, U00431, X67668, NP 005333, NM 016957, and J04179, the entire teachings of which are incorporated herein by reference. Additional examples of HMGB polypeptides include, but are not limited to mammalian HMG1 ((HMGB1) as described, for example, in GenBank Accession Number U51677), HMG2 ((HMGB2) as described, for example, in GenBanlc Accession Number M83665), HMG-2A ((HMGB3, HMG-4) as described, for example, in GenBank Accession Numbers NM 005342 and NP 005333), HMG14 (as described, for example, in GenBank Accession Number P05114), HMG17 (as described, for example, in GenBank Accession Number X13546), HMGI (as described, for example, in GenBanlc Accession Number L17131), and HMGY (as described, for example, in GenBank Accession Number M23618); nonmammalian HMG T1 (as described, for example, in GenBank Accession Number X02666) and HMG T2 (as described, for example, in GenBank Accession Number L32859) (rainbow trout); HMG-X (as described, for example, in GenBanlc Accession Number D30765) (Xenopus), HMG
D (as described, for example, in GenBank Accession Number X71138) and HMG Z
(as described, for example, in GenBank Accession Number X71139) (Drosophila);
NHP10 protein (HMG protein homolog NHP 1) (as described, for example, in GenBank Accession Number 248008) (yeast); non-histone chromosomal protein (as described, for example, in GenBank Accession Number 000479) (yeast); HMG 1/ 2 like protein (as described, for example, in GenBank Accession Number 211540) (wheat, maize, soybean); upstream binding factor (UBF-1) (as described, for example, in GenBank Accession Number X53390); PMS1 protein homolog 1 (as described, for example, in GenBank Accession Number U13695); single-strand recognition protein (SSRP, structure-specific recognition protein) (as described, for example, in GenBanlc Accession Number M86737); the HMG homolog TDP-1 (as described, for example, in GenBanlc Accession Number M74017); mammalian sex-determining region Y protein (SRY, testis-determining factor) (as described, for example, in GenBanlc Accession Number X53772); fungal proteins: mat-1 (as described, for example, in GenBanlc Accession Number AB009451), ste 11 (as described, for example, in GenBank Accession Number X53431) and Mc 1; SOX 14 (as described, for example, in GenBanlc Accession Number AF107043), as well as SOX 1 (as described, for example, in GenBank Accession Number Y13436), SOX 2 (as described, for example, in GenBanlc Accession Number 231560), SOX 3 (as described, for example, in GenBanlc Accession Number X71135), SOX 6 (as described, for example, in GenBanlc Accession Number AF309034), SOX 8 (as described, for example, in GenBanlc Accession Number AF226675), SOX 10 (as described, for example, in GenBanlc Accession Number AJ001183), SOX 12 (as described, for example, in GenBank Accession Ntunber X73039) and SOX 21 (as described, for example, in GenBank Accession Number AF 107044)); lymphoid specific factor (LEF-1) (as described, for example, in GenBank Accession Number X58636); T-cell specific transcription factor (TCF-1) (as described, for example, in GenBanlc Accession Number X59869); MTT1 (as described, for example, in GenBank Accession Number M62810); amd SP100-HMG nuclear autoantigen (as described, for example, in GenBank Accession Number U36501).
Other examples of HMGB proteins are polypeptides encoded by HMGB
nucleic acid sequences having GenBank Accession Numbers NG 000897 (HMG1L5 (formerly HMG1L10)) (and in particular by nucleotides 150-797 of NG 000897, as shown in FIGS. 14A and 14B); AF076674 (HMG1L1) (and in particular by nucleotides 1-633 of AF076674, as shown in FIGS. 14C and 14D; AF076676 (HMG1L4) (and in particular by nucleotides 1-564 of AF076676, as shown in FIGS.
14E and 14F); AC010149 (HMG sequence from BAC clone RPl 1-395A23) (and in particular by nucleotides 75503-76117 of AC010149), as shown in FIGS. 14G and 14H); AF165168 (HMG1L9) (and in particular by nucleotides 729-968 of AF165168, _as shown in FIGS. 14I and 14J); XM_063129 (LOC122441) (and in particular by nucleotides 319-558 of XM 063129, as shown in FIGS. 14I~ and 14L);
XM -066789 (LOC139603) (and in particular by nucleotides 1-258 of XM_066789, as shown in FIGS. 14M and 14N); and AF165167 (HMG1L8) (and in particular by nucleotides 456-666 of AF165167, as shown in FIGS. 140 and 14P) The HMGB polypeptides of the present invention also encompass sequence variants. Variants include a substantially homologous polypeptide encoded by the same genetic locus in an organism, i.e., an allelic variant, as well as other variants.
Variants also encompass polypeptides derived from other genetic loci in an organism, but having substantial homology to a polypeptide encoded by an HMGB
nucleic acid molecule, and complements and portions thereof, or having substantial homology to a polypeptide encoded by a nucleic acid molecule comprising the nucleotide sequence of an HMGB nucleic acid molecule. Examples of HMGB
nucleic acid molecules are known in the art and can be derived from HMGB
polypeptides as described herein. Variants also include polypeptides substantially homologous or identical to these polypeptides but derived from another organism, i.e., an ortholog. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by chemical synthesis. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by recombinant methods.
Preferably, the HMGB polypeptide has at least 60%, more preferably, at least 70%, 75%, 80%, 85%, or 90%, and most preferably at least 95%, sequence identity to a sequence selected from the group consisting of SEQ ID NO:1, SEQ ID N0:2, SEQ
ID N0:3 and SEQ ID N0:18, as determined using the BLAST program and parameters described herein and one of more of the biological activities of an HMGB
polypeptide.
In other embodiments, the present invention is directed to an HMGB
polypeptide fragment that has HMGB biological activity. By an "HMGB
polypeptide fragment that has HMGB biological activity" or a "biologically active HMGB fragment" is meant a fragment of an HMGB polypeptide that has the activity of an HMGB polypeptide. An example of such an HMGB polypeptide fragment is the HMGB B box, as described herein. Biologically active HMGB fragments can be generated using standard molecular biology techniques and assaying the function of the fragment by determining if the fragment, when administered to a cell, increases release of a proinflammatory cytokine from the cell, compared to a suitable control, for example, using methods described herein.
As used herein, an "HMGB A box", also referred to herein as an "A box", is a substantially pure, or substantially pure and isolated polypeptide, that has been separated from components that naturally accompany it, and consists of an amino acid sequence that is less than a full length HMGB polypeptide and which has one or more of the following biological activities: inhibiting inflammation, and/or inhibiting release of a proinflammatory cytokine from a cell, and/or decreasing the activity of the inflammatory cytokine cascade. In one embodiment, the HMGB A box polypeptide has one of the above biological activities. In another embodiment, the HMGB A box polypeptide has two of the above biological activities. In a third embodiment, the HMGB A box polypeptide has all three of the above biological activities. Preferably, the HMGB A box has no more than 10%, 20%, 25%, 30%, 40%, 50%, 60%, 70%, 80%, or 90%, of the biological activity of a full length HMGB
polypeptide. In one embodiment, the HMGB A box amino acid consists of the sequence of SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal.
An HMGB A box is also a recombinantly produced polypeptide having the same amino acid sequence as the A box sequences described above. Preferably, the HMGB A box is a mammalian HMGB A box, for example, a human HMG1 A box.
The HMGB A box polypeptides of the present invention preferably comprise or consist of the sequence of SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal.
An HMGB A box often has no moxe than about 85 amino acids and no fewer than about 4 amino acids. Examples of polypeptides having A box sequences within them include, but are not limited to, the HMGB proteins and polypeptides described herein. The A box sequences in such polypeptides can be determined and isolated using methods described herein, for example, by sequence comparisons to A
boxes described herein and testing for A box biological activity using methods described herein or other methods known in the art.
Additional examples of HMGB A box polypeptide sequences include the following sequences: PDASVNFSEF SKKCSERWKT MSAKEKGKFE
DMAKADKARY EREMKTYIPP KGET (human HMGB1; SEQ ID NO: 40);
DSSVNFAEF SKKCSERWKT MSAKEKSKFE DMAKSDKARY DREMKNYVPP
KGDK (human HMGB2; SEQ ID NO: 41); PEVPVNFAEF SKKCSERWKT
VSGKEKSKFD EMAKADKVRY DREMKDYGPA KGGK (human HMGB3; SEQ
ID NO: 42); PDASVNFSEF SKKCSERWKT MSAKEKGKFE DMAKADKARY
EREMKTYIPP KGET (HMG1L5 (formerly HMG1L10); SEQ ID NO: 43);
SDASVNFSEF SNKCSERWKT MSAKEKGKFE DMAKADKTHY
ERQMKTYIPP KGET (HMG1L1; SEQ ID NO: 44); PDASVNFSEF
SKKCSERWKA MSAKDKGKFE DMAKVDKADY EREMKTYIPP KGET
(HMG1L4; SEQ ID NO: 45); PDASVKFSEF LKKCSETWKT IFAKEKGKFE
DMAKADKAHY EREMKTYIPP KGEK (HMG sequence from BAC clone RP11-395A23; SEQ ID NO: 46); PDASINFSEF SQKCPETWKT TIAKEKGKFE
DMAKADKAHY EREMKTYIPP KGET (HMG1L9; SEQ ID NO: 47);
PDASVNSSEF SKKCSERWKTMPTKQGKFE DMAKADRAH (HMG1L8; SEQ
ID NO: 48); PDASVNFSEF SKKCLVRGKT MSAKEKGQFE AMAR.ADKARY
EREMKTYIP PKGET (LOC122441; SEQ ID NO: 49); LDASVSFSEF
SNKCSERWKT MSVKEKGKFE DMAKADKACY EREMKIYPYL KGRQ
(LOC139603; SEQ ID NO: 50); and GKGDPKKPRG KMSSYAFFVQ
TCREEHKKKH PDASVNFSEF SKKCSERWKT MSAKEKGKFE
DMAKADKARY EREMKTYIPP KGET (human HMGB 1 A box; SEQ ID NO: 57).
The HMGB A box polypeptides of the present invention also encompass sequence variants. Variants include a substantially homologous polypeptide encoded by the same genetic locus in an organism, i.e., an allelic variant, as well as other variants. Variants also encompass polypeptides derived from other genetic loci in an organism, but having substantial homology to a polypeptide encoded by an HMGB
A
box nucleic acid molecule, and complements and portions thereof, or having substantial homology to a polypeptide encoded by a nucleic acid molecule comprising the nucleotide sequence of an HMGB A box nucleic acid molecule.
Examples of HMGB A box nucleic acid molecules are lcnown in the art and can be derived from HMGB A polypeptides as described herein. Variants also include polypeptides substantially homologous or identical to these polypeptides but derived from another organism, i.e., an ortholog. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by chemical synthesis. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by recombinant methods. Preferably, an HMGB A box has at least 60%, more preferably, at least 70%, 75%, 80%, 85%, or 90%, and most preferably at least 95%, sequence identity to an HMGB A box polypeptide described herein, for example, the sequence of SEQ
ID N0:4, SEQ ID N0:22, or SEQ ID N0:57, as determined using the BLAST
program and parameters described herein, and one of more of the biological activities of an HMGB A box, as determined using methods described herein or other method known in the art.
The present invention also features A box biologically active fragments. By an "A box fragment that has A box biological activity" or an "A box biologically active fragment" is meant a fragment of an HMGB A box that has the activity of an HMGB A box, as described herein. For example, the A box fragment can decrease release of a pro-inflammatory cytokine from a vertebrate cell, decrease inflammation, and/or decrease activity of the inflammatory cytokine cascade. A box fragments can be generated using standard molecular biology techniques and assaying the function of the fragment by determining if the fragment, when administered to a cell inhibits release of a proinflammatory cytokine from the cell, for example, using methods described herein. A box biologically active fragments can be used in the methods described herein in which full length A box polypeptides are used, for example, inhibiting release of a proinflammatory cytokine from a cell, or treating a patient having a condition characterized by activation of an inflammatory cytokine cascade.
As used herein, an "HMGB B box", also referred to herein as a "B box", is a substantially pure, or substantially pure and isolated polypeptide, that has been separated from components that naturally accompany it, and consists of an amino acid sequence that is less than a full length HMGB polypeptide and has one or more of the following biological activities: increasing inflammation, increasing release of a proinflammatory cytolcine from a cell, and or increasing the activity of the inflammatory cytokine cascade. In one embodiment, the HMGB B box polypeptide has one of the above biological activities. In another embodiment, the HMGB B
box polypeptide has two of the above biological activities. In a third embodiment, the HMGB B box polypeptide has all three of the above biological activities.
Preferably, the HMGB B box has at least 25%, 30%, 40%, 50%, 60%, 70%, 80% or 90%, of the biological activity of a full length HMGB polypeptide. In another embodiment, the HMGB B box does not comprise an HMGB A box.
In another embodiment, the HMGB B box is a polypeptide that is about 90%, 80%, 70%, 60%, 50%, 40%, 35%, 30%, 25%, or 20%, of the length of a full length HMGB 1 polypeptide. In another embodiment, the HMGB B box comprises or consists of the sequence of SEQ ID NO:S, SEQ ID N0:20 or SEQ ID N0:58, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal, but is still less than the full length HMGB polypeptide. An HMGB B box polypeptide is also a recombinantly produced polypeptide having the same amino acid sequence as an HMGB B box polypeptide described above. Preferably, the HMGB B box is a mammalian HMGB B box, for example, a human HMGB 1 B box.
An HMGB B box often has no more than about 85 amino acids and no fewer than about 4 amino acids. Examples of polypeptides having B box sequences within them include, but are not limited to, the HMGB proteins and polypeptides described herein. The B box sequences in such polypeptides can be determined and isolated using methods described herein, for example, by sequence comparisons to B
boxes described herein and testing for biological activity, using methods described herein or other methods known in the art.
Additional examples of HMGB B box polypeptide sequences include the following sequences: FKDPNAPKRP PSAFFLFCSE YRPKIKGEHP
GLSIGDVAKK LGEMWNNTAA DDKQPYEKKA AKLKEKYEKD IAAY
(human HMGBl; SEQ ID NO: 51); KKDPNAPKRP PSAFFLFCSE HRPKIKSEHP
GLSIGDTAKK LGEMWSEQSA KDKQPYEQKA AKLKEKYEKD IAAY (human HMGB2; SEQ ID NO: 52); FKDPNAPKRL PSAFFLFCSE YRPKIKGEHP
GLSIGDVAKK LGEMWNNTAA DDKQPYEKKA AKLKEKYEKD IAAY
(HMG1L5 (formerly HMG1L10); SEQ ID NO: 53); FKDPNAPKRP PSAFFLFCSE
YHPKIKGEHP GLSIGDVAKK LGEMWNNTAA DDKQPGEKKA
AKLKEKYEKD IAAY (HMG1L1; SEQ ID NO: 54); FKDSNAPKRP
PSAFLLFCSE YCPKIKGEHP GLPISDVAKK LVEMWNNTFA DDKQLCEKKA
AKLKEKYKKD TATY (HMG1L4; SEQ ID NO: 55); FKDPNAPKRP
PSAFFLFCSE YRPKIKGEHP GLSIGDVVKK LAGMWNNTAA ADKQFYEKKA
AKLKEKYKKD IAAY (HMG sequence from BAC clone RP11-359A23; SEQ ID
NO: 56); and FKDPNAPKRP PSAFFLFCSE YRPKIKGEHP GLSIGDVAKK
LGEMWNNTAA DDKQPYEKKA AKLKEKYEKD IAAYRAKGKP
DAAKKGVVKA EK (human HMGB 1 box; SEQ ID NO: 58).
The HMGB B box polypeptides of the invention also encompass sequence variants. Variants include a substantially homologous polypeptide encoded by the same genetic locus in an organism, i.e., an allelic variant, as well as other variants.
Variants also encompass polypeptides derived from other genetic loci in an organism, but having substantial homology to a polypeptide encoded by an HMGB
box nucleic acid molecule, and complements and portions thereof, or having substantial homology to a polypeptide encoded by a nucleic acid molecule comprising the nucleotide sequence of an HMGB B box nucleic acid molecule.
Examples of HMGB B box nucleic acid molecules are known in the art and can be derived from HMGB B box polypeptides as described herein. Variants also include polypeptides substantially homologous or identical to these polypeptides but derived from another organism, i.e., an ortholog. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by chemical synthesis. Variants also include polypeptides that are substantially homologous or identical to these polypeptides that are produced by recombinant methods. Preferably, a non-naturally occurring HMGB B box polypeptide has at least 60%, more preferably, at least 70%, 75%, 80%, 85%, or 90%, and most preferably at least 95%, sequence identity to the sequence of an HMGB B box as described herein, for example, the sequence of SEQ ID NO:S, SEQ ID NO:20, or SEQ ID N0:58, as determined using the BLAST program and parameters described herein. Preferably, the HMGB B box consists of the sequence of SEQ ID NO:S, SEQ
ID N0:20, or SEQ ID N0:58, or the amino acid sequence in the corresponding region of an HMGB protein in a mammal, and has one or more of the biological activities of an HMGB B box, as determined using methods described herein or other methods known in the art.
In other embodiments, the present invention is directed to a polypeptide comprising an HMGB B box biologically active fragment that has B box biological activity, or a non-naturally occurring HMGB B box fragment In another embodiment, the present invention is directed to a polypeptide comprising a vertebrate HMGB B box or a fragment thereof that has B box biological activity, or a non-naturally occurring HMGB B box but not comprising a full length HMGB
polypeptide. By a "B box fragment that has B box biological activity" or a "B
box biologically active fragment" is meant a fragment of an HMGB B box that has the activity of an HMGB B box. For example, the B box fragment can induce release of a pro-inflammatory cytolcine from a vertebrate cell or increase inflammation, or induce the inflammatory cytolcine cascade. An example of such a B box fragment is the fragment comprising the first 20 amino acids of the HMGB 1 B box (SEQ ID
N0:16 or SEQ ID N0:23), as described herein. B box fragments can be generated using standard molecular biology techniques and assaying the function of the fragment by determining if the fragment, when administered to a cell, increases release of a proinflaxnmatory cytolcine from the cell, as compared to a suitable control, for example, using methods described herein or other methods known in the art.
HMGB polypeptides, HMGB A boxes, and HMGB B boxes, either naturally occurring or non-naturally occuiTing, include polypeptides that have sequence identity to the HMGB polypeptides, HMGB A boxes, and HMGB B boxes described herein. As used herein, two polypeptides (or a region of the polypeptides) are substantially homologous or identical when the amino acid sequences are at least about 60%, 70%, 75%, 80%, 85%, 90%, or 95% or more, homologous or identical.
The percent identity of two amino acid sequences (or two nucleic acid sequences) can be determined by aligning the sequences for optimal comparison purposes (e.g., gaps can be introduced in the sequence of a first sequence). The amino acids or nucleotides at corresponding positions are then compared, and the percent identity between the two sequences is a function of the number of identical positions shared by the sequences (i.e., % identity = # of identical positions/total # of positions x 100).
In certain embodiments, the length of the HMGB polypeptide, HMGB A box polypeptide, or HMGB B box polypeptide aligned for comparison purposes is at least 30%, preferably, at least 40%, more preferably, at least 60%, and even more preferably, at least 70%, 80%, 90%, or 100%, of the length of the reference sequence, for example, those sequence provided in FIGS. 12A-12E, FIGS. 14A-14P, and SEQ
ID NOS: 18, 20, and 22. The actual comparison of the two sequences can be accomplished by well-known methods, for example, using a mathematical algorithm.
A preferred, non-limiting example of such a mathematical algorithm is described in Karlin et al. (Proc. Natl. Acad. Sci. USA, 90:5873-5877, 1993). Such an algorithm is incorporated into the BLASTN and BLASTX programs (version 2.2) as described in Schaffer et al. (Nucleic Acids Res., 29:2994-3005, 2001). When utilizing BLAST
and Gapped BLAST programs, the default parameters of the respective programs (e.g., BLASTN) can be used. See the Internet site for the National Center for Biotechnology Information (NCBI). In one embodiment, the database searched is a non-redundant (NR) database, and parameters for sequence comparison can be set at:
no filters; Expect value of 10; Word Size of 3; the Matrix is BLOSUM62; and Gap Costs have an Existence of 11 and an Extension of 1.
Another preferred, non-limiting example of a mathematical algorithm utilized for the comparison of sequences is the algorithm of Myers and Miller, CABIOS
(1989). Such an algorithm is incorporated into the ALIGN program (version 2.0), which is part of the GCG (Accelrys) sequence alignment software package. When utilizing the ALIGN program for comparing amino acid sequences, a PAM120 weight residue table, a gap length penalty of 12 , and a gap penalty of 4 can be used.
Additional algorithms for sequence analysis are known in the art and include ADVANCE and ADAM as described in Torellis and Robotti (Comput. Appl. Biosci., 10: 3-5,1994); and FASTA described in Pearson and Lipman (Proc. Natl. Acad.
Sci USA, 85: 2444-2448, 1988).
In another embodiment, the percent identity between two amino acid sequences can be accomplished using the GAP program in the GCG software package (Accelrys, San Diego, California) using either a Blossom 63 matrix or a PAM250 matrix, and a gap weight of 12, 10, 8, 6, or 4 and a length weight of 2, 3, or 4. In yet another embodiment, the percent identity between two nucleic acid sequences can be accomplished using the GAP program in the GCG software package (Accelrys, San Diego, California), using a gap weight of 50 and a length weight of 3.
As used herein, a "cytokine" is a soluble protein or peptide which is naturally produced by mammalian cells and which acts in vivo as a humoral regulator at micro-to picomolar concentrations. Cytoleines can, either under normal or pathological conditions, modulate the functional activities of individual cells and tissues. A
proinflammatory cytolcine is a cytokine that is capable of causing any of the following physiological reactions associated with inflammation: vasodilation, hyperemia, increased permeability of vessels with associated edema, accumulation of granulocytes and mononuclear phagocytes, or deposition of fibrin. In some cases, the proinflaxnmatory cytokine can also cause apoptosis, such as in chronic heart failure, where TNF has been shown to stimulate cardiomyocyte apoptosis (Pulkki, Ann.
Med. 29: 339-343, 1997; and Tsutsui et al., Immunol. Rev. 174:192-209, 2000).
Nonlimiting examples of proinflammatory cytokines are tumor necrosis factor (TNF), interleulcin (IL)-la, IL-1(3, IL-6, IL-8, IL-18, interferon y, HMG-l, platelet-activating factor (PAF), and macrophage migration inhibitory factor (MIF).
Proinflaxnmatory cytokines are to be distinguished from anti-inflammatory cytokines, such as IL-4, IL-10, and IL-13, which are not mediators of inflammation.
In many instances, proinflammatory cytokines are produced in an inflammatory cytokine cascade, defined herein as an in vivo release of at least one proinflammatory cytokine in a mammal, wherein the cytokine release affects a physiological condition of the mammal. Thus, an inflammatory cytokine cascade is inhibited in embodiments of the invention where proinflammatory cytokine release causes a deleterious physiological condition.
As used herein, "an agent that inhibits TNF biological activity" is an agent that decreases one or more of the biological activities of TNF. Examples of TNF
biological activity include, but are not limited to, vasodilation, hyperemia, increased permeability of vessels with associated edema, accumulation of granulocytes and mononuclear phagocytes, and deposition of fibrin. Agents that inhibit TNF
biological activity include agents that inhibit (decrease) the interaction between TNF
and a TNF receptor. Examples of such agents include antibodies or antigen binding fragments thereof that bind to TNF, antibodies or antigen binding fragments that bind a TNF receptor, and molecules that bind TNF or the TNF receptor and prevent TNF/TNF receptor interaction. Such agents include, but are not limited to peptides, proteins, synthesized molecules, for example, synthetic organic molecules, naturally-occurring molecule, for example, naturally occurring organic molecules, nucleic acid molecules, and components thereof. Preferred examples of agents that inhibit TNF biological activity include infliximab (Remicade; Centocor, Inc., Malvern, Pennsylvania), etanercept (Immunex; Seattle, Washington), adalimumab (D2E7; Abbot Laboratories, Abbot Park Illinois), CDP870 (Pharmacia Corporation;
Bridgewater, New Jersey) CDP571 (Celltech Group plc, United Kingdom), Lenercept (Roche, Switzerland), and Thalidomide.
Inflammatory cytokine cascades contribute to deleterious characteristics, including inflammation and apoptosis, of numerous disorders. Included are disorders characterized by both localized and systemic reactions, including, without limitation, the disorders described herein (e.g., those conditions enumerated in the background section of this specification). Particular disorders characterized by inflammatory cytolcine cascades include, e.g., sepsis, allograft rejection, rheumatoid arthritis, asthma, lupus, adult respiratory distress syndrome, chronic obstructive pulmonary disease, psoriasis, pancreatitis, peritonitis, burns, myocardial ischemia, organic ischemia, reperfusion ischemia, Behcet's disease, graft versus host disease, Crohn's disease, ulcerative colitis, multiple sclerosis, and cachexia.
A Box Polypeptides aid Biologically Active Ff°agments Thereof As described herein, in one aspect the present invention is directed to a polypeptide composition comprising a vertebrate HMGB A box, or a biologically active fragment thereof, which can inhibit release of a proinflammatory cytokine from a cell treated with HMG, or which can be used to treat a condition characterized by activation of an inflarmnatory cytokine cascade. In certain embodiments, the invention is directed to compositions comprising an HMGB A box, or a biologically active fragment or variant thereof, in combination with one or more agents that inhibit TNF biological activity, for example, infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, or Thalidomide. Such compositions can be used to inhibit release of a proinflammatory cytokine from a vertebrate cell treated with HMG, and/or can be used to treat a condition characterized by activation of an inflammatory cytokine cascade.
When referring to the effect of any of the compositions or methods of the invention on the release of proinflammatory cytokines, the use of the terms "inhibit"
or "decrease" encompasses at least a small but measurable reduction in proinflammatory cytolcine release. In preferred embodiments, the release of the proinflammatory cytokine is inhibited by at least 20% over non-treated controls; in more preferred embodiments, the inlubition is at least 50%; in still more preferred embodiments, the inhibition is at least 70%, and in the most preferred embodiments, the inhibition is at least SO%. Inhibition can be assessed using methods described herein or other methods known in the art. Such reductions in proinflammatory cytokine release are capable of reducing the deleterious effects of an inflammatory cytokine cascade in i~ vivo embodiments.
Because HMGB A boxes (e.g., vertebrate HMGB A boxes) show a high degree of sequence conservation (see, for example, FIG. 13 for an amino acid sequence comparison of rat, mouse, and human HMGB polypeptides), it is believed that an HMGB A box (e.g., a vertebrate HMGB A box) can inhibit release of a proinflammatory cytokine from a vertebrate cell treated with HMGB. Therefore, an HMGB A box (e.g., a vertebrate HMGB A box) is within the scope of the invention.
Preferably, the HMGB A box is a vertebrate HMGB A box (e.g., a mammalian HMGB A box, such as a human HMGB 1 A box provided herein as SEQ ID N0:4, SEQ ID N0:22, or SEQ ID N0:57). Also included in the present invention are fragments of the HMGB 1 A box having HMGB A box biological activity, as described herein.
It would also be recognized by the spilled artisan that non-naturally occurring HMGB A boxes (or biologically active fragments thereof) can be created without undue experimentation, which would inhibit release of a proinflammatory cytolcine from a vertebrate cell treated with a vertebrate HMGB. These non-naturally occurring functional A boxes (variants) can be created by aligning amino acid sequences of HMGB A boxes from different sources, and mal~ing one or more substitutions in one of the sequences at amino acid positions where the A
boxes differ. The substitutions are preferably made using the same amino acid residue that occurs in the compared A box. Alternatively, a conservative substitution is made from either of the residues.
Conservative amino acid substitutions refer to the interchangeability of residues having similar side chains. Conservatively substituted amino acids can be grouped according to the chemical properties of their side chains. For example, one grouping of amino acids includes those amino acids have neutral and hydrophobic side chains (a, v, l, i, p, w, f, and m); another grouping is those amino acids having neutral and polar side chains (g, s, t, y, c, n, and q); another grouping is those amino acids having basic side chains (lc, r, and h); another grouping is those amino acids having acidic side chains (d and e); another grouping is those amino acids having aliphatic side chains (g, a, v, l, and i); another grouping is those amino acids having aliphatic-hydroxyl side chains (s and t); another grouping is those amino acids having amine-containing side chains (n, q, k, r, and h); another grouping is those amino acids having aromatic side chains (f, y, and w); and another grouping is those amino acids having sulfur-containing side chains (c and m). Preferred conservative amino acid substitutions groups are: r-k; e-d, y-f, l-m; v-i, and q-h.
While a conservative amino acid substitution would be expected to preserve the biological activity of an HMGB A box polypeptide, the following is one example of how non-naturally occurring A box polypeptides (variants) can be made by comparing the human HMGB 1 A box (SEQ ID NO:4) with residues 32 to 85 of SEQ
ID NO:3 of the human HMGB2 A box (SEQ ID N0:17).
HMGB 1 pdasvnfsef sklccserwkt msakekgkfe dmakadkary eremktyipp kget (SEQ ID
N0:4) HMGB2 pdssvnfaef sklccserwkt msakekskfe dmaksdkary dremlcnyvpp kgdk (SEQ ID
N0:17) A non-naturally occmTing HMGB A box can be created by, for example, by substituting the alanine (a) residue at the third position in the HMGBl A box with the serine (s) residue that occurs at the third position of the HMGB2 A box.
The skilled artisan would lcnow that the substitution would provide a functional non-naturally occurring A box because the s residue functions at that position in the HMGB2 A box. Alternatively, the third position of the HMGB 1 A box can be substituted with any amino acid that is conservative to alanine or serine, such as glycine (g), threonine (t), valine (v) or leucine (1). The skilled artisan would recognize that these conservative substitutions would be expected to result in a functional A box because A boxes are not invariant at the third position, so a conservative substitution would provide an adequate structural substitute for an amino acid that is naturally occurring at that position.
Following the above method, a great many non-naturally occurring HMGB A
boxes could be created without undue experimentation wluch would be expected to be functional, and the functionality of any particular non-naturally occurring HMGB
A box could be predicted with adequate accuracy. In any event, the functionality of any non-naturally occurring HMGB A box could be determined without undue experimentation by simply adding it to cells along with an HMGB polypeptide, and determining whether the A box inhibits release of a proinflammatory cytokine by the cells, using, for example, methods described herein.
The cell from which the A box or an A box biologically active fragment will inhibit the release of HMG-induced proinflammatory cytokines can be any cell that can be induced to produce a proinflammatory cytokine. In preferred embodiments, the cell is a mammalian cell, for example, an immune cell (e.g., a macrophage, a monocyte, or a neutrophil).
Polypeptides comprising an A box or A box biologically active fragment that can inhibit the production of any single proinflarnmatoiy cytokine, now known or later discovered, are within the scope of the present invention. Preferably, the antibodies can inhibit the production of TNF, IL-1 Vii, and/or IL-6. Most preferably, the antibodies can inhibit the production of any proinflammatory cytokines produced by the vertebrate cell.
B Box Polypeptides and Biologically Active Ff~agrnents Thereof As described herein, in one aspect the present invention is directed to a polypeptide composition comprising a vertebrate HMGB B box, or a biologically active fragment thereof, which can increase release of a proinflammatory cytokine from a vertebrate cell treated with HMGB.
When referring to the effect of any of the compositions or methods of the invention on the release of proinflammatory cytokines, the use of the term "increase"
encompasses at least a small but measurable rise in proinflammatory cytokine release. In preferred embodiments, the release of the proinflammatory cytokine is increased by at least 1.5-fold, at least 2-fold, at least 5-fold, or at least 10-fold, over non-treated controls. Such increases in proinflammatory cytolcine release are capable of increasing the effects of an inflammatory cytokine cascade in in vivo embodiments. Such polypeptides can also be used to induce weight loss and/or treat obesity.
Because all HMGB B boxes show a high degree of sequence conservation (see, for example, FIG. 13 for an amino acids sequence comparison of rat, mouse, and human HMGB polypeptides), it is believed that functional non-naturally occurring HMGB B boxes can be created without undue experimentation by making one or more conservative amino acid substitutions, or by comparing naturally occurring vertebrate B boxes from different sources and substituting analogous amino acids, as was discussed above with respect to the creation of functional non-naturally occurring A boxes. In particularly preferred embodiments, the B box comprises SEQ ID NO:S, SEQ ID NO: 20 or SEQ ID NO:58, which are the sequences (three different lengths) of the human HMGB 1 B box, or, comprises the B
box sequences from the polypeptides shown in FIGS. 14A-14P, or is a fragment of an HMGB B box that has B box biological activity. For example, a 20 amino acid sequence contained within SEQ ID NO: 20 contributes to the function of the B
box.
This 20 amino acid B-box fragment has the following amino acid sequence:
flcdpnapkrl psafflfcse (SEQ ID N0:23). Another example of an HMGB B box biologically active fragment consists of amino acids 1-20 of SEQ ID NO:S
(naplcrppsaf flfcseyrplc; SEQ ID NO: 16).
Antibodies to HMGB and HMGB B Box Polypeptides The invention is also directed to a purified preparation of antibodies that bind to an HMGB polypeptide or a biologically active fragment thereof (anti-HMGB
antibodies). The anti-HMGB antibodies can be neutralizing antibodies (i.e., can inhibit a biological activity of an HMG polypeptide or a biologically active fragment thereof, for example, the release of a proinflammatory cytokine from a vertebrate cell induced by HMG). The invention is also directed to a purified preparation of antibodies that specifically bind to a vertebrate high mobility group protein (HIVIG) B
box or a biologically active fragment thereof, but do not selectively bind to non-B
box epitopes of HMGB (anti-HMGB B box antibodies). In these embodiments, the antibodies can also be neutralizing antibodies (i.e., they can inhibit a biological activity of a B box polypeptide or biologically active fragment thereof, for example, the release of a proinflammatory cytokine from a vertebrate cell induced by HMGB).
Such antibodies can be combined with one or more agents that inhibit TNF
biological activity, for example, infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, or Thalidomide.
The term "antibody" or "purified antibody" as used herein refers to immunoglobulin molecules and immunologically active portions of immunoglobulin molecules, i.e., molecules that contain an antigen binding site that selectively binds an antigen. A molecule that selectively binds to a polypeptide of the invention is a molecule that binds to that polypeptide or a fragment thereof, but does not substantially bind other molecules in a sample, e.g., a biological sample that naturally contains the polypeptide. Preferably the antibody is at least 60%, by weight, free from proteins and naturally occurring organic molecules with which it is naturally associated. More preferably, the antibody preparation is at least 75% or 90%, and most preferably, 99%, by weight, antibody. , Examples of immunologically active portions of immunoglobulin molecules include Flab) and F(ab')Z fragments that can be generated by treating the antibody with an enzyme such as pepsin.
The invention provides polyclonal and monoclonal antibodies that selectively bind to a HMGB B box polypeptide of the invention. The term "monoclonal antibody" or "monoclonal antibody composition," as used herein, refers to a population of antibody molecules that contain only one species of an antigen binding site capable of immunoreacting with a particular epitope of a polypeptide of the invention. A monoclonal antibody composition thus typically displays a single binding affinity for a particular polypeptide of the invention with which it immunoreacts.
Polyclonal antibodies can be prepared, e.g., as described herein, by immunizing a suitable subject with a desired immunogen, e.g., an HMGB B box polypeptide of the invention or fragment thereof. The antibody titer in the immunized subject can be monitored over time by standard techniques, such as with an enzyme linked immunosorbent assay (ELISA) using immobilized polypeptide. If desired, the antibody molecules directed against the polypeptide can be isolated from the mammal (e.g., from the blood) and further purified by well-known techniques, such as protein A chromatography to obtain the IgG fraction.
At an appropriate time after immunization, e.g., when the antibody titers are highest, antibody-producing cells can be obtained from the subject and used to prepare monoclonal antibodies by standard techniques, such as the hybridoma technique originally described by Kohler and Milstein (Nature 256:495-497, 1975), the human B cell hybridoma technique (Kozbor et al., Immunol. Today 4:72, 1983), the EBV-hybridoma technique (Cole et al., Monoclonal Antibodies and Cancer Therapy, Alan R. Liss, Inc., pp. 77-96, 1985) or trioma techniques. The technology for producing hybridomas is well known (see generally Current Protocols in Immunology, Coligan et al., (eds.) John Wiley & Sons, Inc., New York, NY, 1994).
Briefly, an immortal cell line (typically a myeloma) is fused to lymphocytes (typically splenocytes) from a marmnal immunized with an immunogen as described above, and the culture supernatants of the resulting hybridoma cells are screened to identify a hybridoma producing a monoclonal antibody that binds a particular polypeptide (e.g., a polypeptide of the invention).
Any of the marry well known protocols used for fusing lymphocytes and immortalized cell lines can be applied for the purpose of generating a monoclonal antibody to a polypeptide of the invention (see, e.g., Current Protocols in Immunology, supra; Galfre et al. (Nature, 266:55052, 1977); R.H. Kenneth, in Monoclonal Antibodies: A New Dimension In Biological Analyses, Plenum Publishing Corp., New York, New York (1980); and Lerner (Yale J. Biol. Med.
54:387-402, 1981)). Moreover, the ordinarily skilled worker will appreciate that there are many variations of such methods that also would be useful.
In one alternative to preparing monoclonal antibody-secreting hybridomas, a monoclonal antibody to an HMGB B box polypeptide of the invention can be identified and isolated by screening a recombinant combinatorial immunoglobulin library (e.g., an antibody phage display library) with the polypeptide to thereby isolate immunoglobulin library members that bind the polypeptide. Kits for generating and screening phage display libraries are commercially available (e.g., the Pharmacia Recombinant Phage Antibody System, Catalog No. 27-9400-O1; and the Stratagene SurfZAPTM Phage Display Kit, Catalog No. 240612). Additionally, examples of methods and reagents particularly amenable for use in generating and screening antibody display library can be found in, for example, U.S. Patent No.
5,223,409; PCT Publication No. WO 92/18619; PCT Publication No. WO 91/17271;
PCT Publication No. WO 92/20791; PCT Publication No. WO 92/15679; PCT
Publication No. WO 93/01288; PCT Publication No. WO 92/01047; PCT
Publication No. WO 92/09690; PCT Publication No. WO 90/02809; Fuchs et al., BiofTechnology 9:1370-1372, 1991; Hay et al., Hum. Antibod. Hybridomas 3:81-85, 1992; Huse et al. (Science 246:1275-1281, 1989); and Griffiths et al. (EMBO J.
12:725-734, 1993).
Additionally, recombinant antibodies, such as chimeric and humanized monoclonal antibodies, comprising both human and non-human portions, which can be made using standard recombinant DNA techniques, are within the scope of the invention. Such chimeric and humanized monoclonal antibodies can be produced by recombinant DNA techniques known in the art.
In general, antibodies of the invention (e.g., a monoclonal antibody) can be used to isolate an HMGB B box polypeptide of the invention by standard techniques, such as affinity chromatography or immunoprecipitation. A polypeptide-specific antibody can facilitate the purification of natural polypeptide from cells and of recombinantly produced polypeptide expressed in host cells. Moreover, an antibody specific for an HMGB B box polypeptide of the invention can be used to detect the polypeptide (e.g., in a cellular lysate, cell supernatant, or tissue sample) in order to evaluate the abundance and pattern of expression of the polypeptide.
Because vertebrate HMGB polypeptides and HMGB B boxes show a high degree of sequence conservation, it is believed that vertebrate HMGB
polypeptides or HMGB B boxes in general can induce release of a proinflammatory cytokine from a vertebrate cell. Therefore, antibodies against vertebrate HMGB polypeptides or HMGB B boxes are within the scope of the invention. In one embodiment, the antibodies are neutralizing antibodies.
Preferably, the HMGB polypeptide is a mammalian HMG, as described herein, more preferably a mammalian HMGB 1 polypeptide, most preferably a human HMGB 1 polypeptide, provided herein as SEQ ID NO:1. Antibodies can also be directed against an HMGB polypeptide fragment that has HMGB polypeptide biological activity.
Preferably, the HMGB B box is a mammalian HMGB B box, more preferably a mammalian HMGB 1 B box, most preferably a human HMGB 1 B box, provided herein as SEQ ID NO:S, SEQ ID N0:20, or SEQ ID N0:58. Antibodies can also be directed against an HMGB B box fragment that has B box biological activity.
Antibodies generated against an HMGB immunogen or an HMGB B box immunogen can be obtained by administering an HMGB polypeptide, or fragment thereof, an HMGB B box or fragment thereof, or cells comprising the HMGB
polypeptide, the HMGB B box, or fragments thereof, to an animal, preferably a nonhuman, using routine protocols. The polypeptide, such as an antigenically or immunologically equivalent derivative, is used as an antigen to immunize a mouse or other animal, such as a rat or chicken. The immunogen may be associated, for example, by conjugation, with an immunogenic carrier protein, for example, bovine serum albumin (BSA) or lceyhole limpet haemocyanin (KLH). Alternatively, a multiple antigenic peptide comprising multiple copies of the HMGB or HMGB B
box or fragment, may be sufficiently antigenic to improve immunogenicity so as to obviate the need for a carrier. Bispecific antibodies, having two antigen binding domains where each is directed against a different HMGB or HMGB B box epitope, may also be produced by routine methods.
For preparation of monoclonal antibodies, any technique known in the art that provides antibodies produced by continuous cell line cultures can be used.
See, e.g., Kohler and Milstein, supra; and Cole et al., supra.
Techniques for the production of single chain antibodies (LJ.S. Pat. No.
4,946,778) can be adapted to produce single chain antibodies to HMGB, the B
box or fragments thereof. Also, transgenic mice, or other organisms such as other mammals, may be used to express humanized antibodies.
If the antibody is used therapeutically in ih vivo applications, the antibody is preferably modified to make it less immunogenic in the individual. For example, if the individual is human the antibody is preferably "humanized"; where the complementarity determining regions) of the antibody is transplanted into a human antibody (for example, as described in Jones et al. (Nature 321:522-525, 1986); and Tempest et al. (Biotechnology 9:266-273, 1991)).
Phage display technology can also be utilized to select antibody genes with binding activities towards the polypeptide either from repertoires of PCR
amplified v-genes of lymphocytes from humans screened for possessing anti-B box antibodies or from naive libraries (McCafferty et al., Nature 348:552-554, 1990; and Marks, et al., Biotechnology 10:779-783, 1992). The affinity of these antibodies can also be improved by chain shuffling (Clackson et al., Nature 352: 624-628, 1991).
When the antibodies are obtained that specifically bind to HMGB epitopes or to HMGB B box epitopes, they can then be screened, without undue experimentation, for the ability to inhibit release of a proinflammatory cytokine.
Anti-HMGB B box antibodies that can inhibit the production of any single proinflammatory cytolcine, and/or inhibit the release of a proinflammatory cytokine from a cell, and/or inhibit a condition characterized by activation of an inflammatory cytolcine cascade, are within the scope of the present invention. Preferably, the antibodies can inhibit the production of TNF, IL-1 (3, and/or IL-6. Most preferably, the antibodies can inhibit the production of any proinflammatory cytokines produced by the vertebrate cell.
For methods of inhibiting release of a proinflammatory cytolcine from a cell or treating a condition characterized by activation of an inflammatory cytokine cascade using antibodies to the HMGB B box or a biologically active fragment thereof, the cell can be any cell that can be induced to produce a proinflammatory cytolcine. In preferred embodiments, the cell is an immune cell, for example, macrophages, monocytes, or neutrophils.
Compositions Comprising One or More of an HMGB A box polypeptide, an Antibody to HMGB, an Aratibody to an HMGB B box, and an Inhibitor of .TNFBiological Activity In certain embodiments, the present invention is directed to a composition comprising any of the above-described polypeptides (e.g., an HMGB A box polypeptide or biologically active fragment as described herein) in a pharmaceutically acceptable carrier. Suitable pharmaceutically acceptable carriers include those described herein. In these embodiments, the composition can inhibit a condition characterized by activation of an inflammatory cytokine cascade. The condition can be one where the inflammatory cytokine cascade causes a systemic reaction, such as with endotoxic shocle. Alternatively, the condition can be mediated by a localized inflammatory cytokine cascade, as in rheumatoid arthritis:
Nonlimiting examples of conditions which can be usefully treated using the present invention include those conditions enumerated in the background section of this specification. In one embodiment, the condition to be treated is appendicitis, peptic, gastric or duodenal ulcers, peritonitis, pancreatitis, ulcerative, pseudomembranous, acute or ischemic colitis, hepatitis, Crohn's disease, asthma, allergy, anaphylactic shoclc, organ ischemia, reperfusion injury, organ necrosis, hay fever, sepsis, septicemia, endotoxic shock, cachexia, septic abortion, disseminated bacteremia, bums, Alzheimer's disease, coeliac disease, congestive heart failure, adult respiratory distress syndrome, cerebral infarction, cerebral embolism, spinal cord injury, paralysis, allograft rejection or graft-versus-host disease. In another embodiment, the condition is endotoxic shock or allograft rej ection. Where the condition is allograft rejection, the composition may advantageously also include an immunosuppressant that is used to inhibit allograft rejection, such as cyclosporin.
In other embodiments, the invention is directed to a composition comprising the antibody preparations described above (e.g., anti-HMGB B box antibodies or biologically active fragments thereof, as described herein), in a pharmaceutically acceptable caxrier. In these embodiments, the compositions can intubit a condition characterized by the activation of an inflammatory cytokine cascade.
Conditions that can be treated with these compositions have been previously enumerated.
In other embodiments, the invention is directed to a composition comprising any of the above-described HMGB A box polypeptides, and/or an antibody or antigen binding fragment thereof that binds HMGB, and/or an antibody or antigen binding fragment thereof that binds an HMGB B box, and an agent that inhibits TNF
biological activity (collectively termed "combination therapy compositions").
Preferred examples of agents that inhibit TNF biological activity include infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide. Such combination therapy compositions can further comprise a pharmaceutically acceptable carrier. Suitable pharmaceutically acceptable carriers include those .
described herein. In these embodiments, the combination therapy composition can inhibit a condition characterized by activation of an inflarmnatory cytokine cascade and/or inhibit release of a proinflammatoiy cytokine from a cell. The condition can be one where the inflammatory cytokine cascade causes a systemic reaction, such as with endotoxic shock. Alternatively, the condition can be mediated by a localized inflammatory cytokine cascade, as in rheumatoid arthritis. Nonlimiting examples of conditions which can be usefully treated using the present invention include those conditions enumerated in the background section of this specification. In one embodiment, the condition to be treated is sepsis, allograft rejection, rheumatoid arthritis, asthma, lupus, adult respiratory distress syndrome, chronic obstructive pulmonary disease, psoriasis, pancreatitis, peritonitis, burns, myocardial ischemia, organic ischemia, reperfusion ischemia, Behcet's disease, graft versus host disease, Crohn's disease, ulcerative colitis, multiple sclerosis, and cachexia.
Preferably the combination therapy compositions are administered to a patient in need thereof in an amount sufficient to inhibit release of proinflammatory cytolcine from a cell and/or to treat a condition characterized by activation of an inflammatory cytolcine cascade. In one embodiment, release of the proinflammatory cytokine is inhibited by at least 10%, 20%, 25%, 50%, 75%, 80%, 90% or 95%, as assessed using methods described herein or other methods lcnown in the art.
The carrier or excipient included with the polypeptide (e.g., an HMGB A box polypeptide or biologically active fragment thereof), antibody (e.g., an anti-HMGB B
box antibody or biologically active fragment thereof) or combination therapy composition (e.g., an HMGB A box polypeptide or biologically active fragment thereof and an agent that inhibits TNF biological activity, and/or an antibody or antigen binding fragment thereof that binds HMGB and an agent that inhibits TNF
biological activity, and/or an antibody or antigen binding fragment thereof that binds an HMGB B box and an agent that inhibits TNF biological activity) is chosen based on the expected route of administration of the composition in therapeutic applications. The route of administration of the composition depends on the condition to be treated. For example, intravenous injection may be preferred for treatment of a systemic disorder such as endotoxic shock, and oral administration may be preferred to treat a gastrointestinal disorder such as a gastric ulcer.
The route of administration and the dosage of the composition to be administered can.be determined by the skilled artisan, without undue experimentation, in conjunction with standard dose-response studies. Relevant circumstances to be considered in making such determinations include the condition or conditions to be treated, the choice of composition to be administered, the age, weight, and response of the individual patient, and the severity of the patient's symptoms. Thus, depending on the condition, the antibody composition can be administered orally, parenterally, intranasally, vaginally, rectally, lingually, sublingually, bucally, intrabuccaly and transdermally to the patient.
Accordingly, compositions designed for oral, lingual, sublingual, buccal and intrabuccal administration can be made without undue experimentation by means well known in the art, for example, with an inert diluent or with an edible carrier.
The compositions may be enclosed in gelatin capsules or compressed into tablets.
For the purpose of oral therapeutic administration, the pharmaceutical compositions of the present invention may be incorporated with excipients and used in the form of tablets, troches, capsules, elixirs, suspensions, syrups, wafers, chewing gums and the like.
Tablets, pills, capsules, troches and the like may also contain binders, recipients, disintegrating agent, lubricants, sweetening agents, and flavoring agents.
Some examples of binders include microcrystalline cellulose, gum tragacanth and gelatin. Examples of excipients include starch and lactose. Some examples of disintegrating agents include alginic acid, corn starch and the like. Examples of lubricants include magnesium stearate and potassium stearate. An example of a glidant is colloidal silicon dioxide. Some examples of sweetening agents include sucrose, saccharin and the like. Examples of flavoring agents include peppermint, methyl salicylate, orange flavoring and the like. Materials used in preparing these various compositions should be pharmaceutically pure and non-toxic in the amounts used.
The compositions of the present invention can easily be administered parenterally such as, for example, by intravenous, intramuscular, intrathecal or subcutaneous injection. Parenteral administration can be accomplished by incorporating the compositions of the present invention into a solution or suspension.
Such solutions or suspensions may also include sterile diluents such as water for injection, saline solution, fixed oils, polyethylene glycols, glycerine, propylene glycol andlor other synthetic solvents. Parenteral formulations may also include antibacterial agents such as, for example, benzyl alcohol and/or methyl parabens, antioxidants such as, for example, ascorbic acid and/or sodium bisulfate and chelating agents such as EDTA. Buffers, such as acetates, citrates and/or phosphates, and agents for the adjustment of tonicity, such as sodium chloride and/or dextrose, may also be added. The parenteral preparation can be enclosed in ampules, disposable syringes or multiple dose vials made of glass or plastic.
Rectal administration includes administering the pharmaceutical compositions into the rectum or large intestine. This can be accomplished using suppositories or enemas. Suppository formulations can easily be made by methods known in the art. For example, suppository formulations can be prepared by heating glycerin to about 120°C, dissolving the polypeptide composition, antibody composition and/or combination therapy composition in the glycerin, mixing the heated glycerin after which purified water may be added, and pouring the hot mixture into a suppository~mold.
Transdermal administration includes percutaneous absorption of the composition through the skin. Transdermal formulations include patches, ointments, creams, gels, salves and the like.
The present invention includes nasally administering to a mammal (e.g., a human) a therapeutically effective amount of the composition. As used herein, nasally administering or nasal administration includes administering the composition to the mucous membranes of the nasal passage or nasal cavity of the patient.
As used herein, pharmaceutical compositions for nasal administration of a composition include therapeutically effective amounts of the polypeptide, antibody and/or combination therapy agents, prepared by well-known methods to be administered, for example, as a nasal spray, nasal drop, suspension, gel, ointment, cream or powder.
Administration of the composition may also take place using a nasal tampon or nasal sponge.
The pharmaceutical compositions (e.g., polypeptide compositions, antibody compositions and/or combination therapy composition) described herein can also include an antagonist of an early sepsis mediator. As used herein, an early sepsis mediator is a proinflammatory cytokine that is released from cells soon (i.e., within 30-60 min.) after induction of an inflammatory cytokine cascade (e.g., exposure to LPS). Nonlimiting examples of these cytokines axe TNF, IL-1 a, IL-1 (3, IL-6, PAF, and MIF. Also included as early sepsis mediators are receptors for these cytokines (for example, tumor necrosis factor receptor type 1) and enzymes required for production of these cytokines, for example, interleukin-1 (3 converting enzyme).
Antagonists of any early sepsis mediator, now known or later discovered, can be useful for these embodiments by further inhibiting an inflammatory cytokine cascade.
Nonlimiting examples of antagonists of early sepsis mediators are antisense compounds that bind to the mRNA of the early sepsis mediator, preventing its expression (see, e.g., Ojwang et al. (Biochemistry 36:6033-6045, 1997);
Pampfer et al. (Biol. Reprod. 52:1316-1326, 1995); U.S. Patent No. 6,228,642; Yahata et al.
(Antisense Nucleic Acid Drug Dev. 6:55-61, 1996); and Taylor et al. (Antisense Nucleic Acid Drug Dev. 8:199-205, 1998)), ribozymes that specifically cleave the mRNA of the early sepsis mediator (see, e.g., Leavitt et al. (Antisense Nucleic Acid Drug Dev. 10: 409-414, 2000); Hendrix et al. (Biochem. J. 314 (Pt. 2): 655-661, 1996)), and antibodies that bind to the early sepsis mediator and inhibit their action (see, e.g., Kam and Targan (Expert Opin. Pharmacother. 1: 615-622, 2000);
Nagahira et al. (J. Immunol. Methods 222, 83-92, 1999); Lavine et al. (J. Cereb. Blood Flow Metab. 18: 52-58, 1998); and Holines et al. (Hybridoma 19: 363-367, 2000)).
Any antagonist of an early sepsis mediator, now known or later discovered, is envisioned as within the scope of the invention. The skilled artisan can determine the amount of early sepsis mediator to use in these compositions for inhibiting any particular inflammatory cytokine cascade without undue experimentation with routine dose-response studies.
Other agents that can be administered with the compositions described herein include, e.g., Vitaxin~" and other antibodies targeting a~~33 integrin (see, e.g., U.S.
Patent No. 5,753,230, PCT Publication Nos. WO 00/78815 and WO 02/070007; the entire teachings of all of which are incorporated herein by reference) and anti-IL-9 antibodies (see, e.g., PCT Publication No. WO 97/08321; the entire teachings of which are incorporated herein by reference). Additional agents that can be administered with the polypeptide compositions described herein include, e.g., antagonists (e.g., CTLA4Ig, anti-CD80 antibodies, anti-CD86 antibodies), methotrexate, and/or CD40 antagonists (e.g., anti-CD40 ligand (CD40L)) (see, e.g., Saito et al., J. Immunol. 160(9):4225-31 (1998)).
In further embodiments, the present invention is also directed to a method of inhibiting the release of a proinflammatory cytokine from a mammalian cell.
The method comprises treating the cell with any of the HMGB A box compositions, and/or any of the HMGB B box or HMGB B box biologically active fragment antibody compositions, and/or any of the combination therapy compositions discussed above. It is believed that this method would be useful for inhibiting the cytokine release from any mammalian cell that produces a proinflarnlnatory cytokine.
However, in preferred embodiments, the cell is a macrophage, because macrophage production of proinflammatory cytol~ines is associated with several important diseases.
It is believed that this method is useful for the inhibition of any proinflammatory cytokine produced by mammalian cells. In preferred embodiments, the proinflarnmatory cytokine is TNF, IL-1a, IL-1 Vii, MIF and/or IL-6, because those proinflammatory cytolcines are particularly important mediators of disease.
The methods of these embodiments are useful for isa vitro applications, such as in studies for determining biological characteristics of proinflammatory cytol~ine production in cells. However, the preferred embodiments are in vivo therapeutic applications, where the cells are in a patient suffering from, or at risk for, a condition characterized by activation of an inflammatory cytokine cascade.
In certain embodiments, the present invention is directed to a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade. The method comprises administering to the patient any of the HMGB A box compositions (including non-naturally occurring A box polypeptides and A box biologically active fragments), any of the HMGB B box or B box biologically active fragment antibody compositions (including non-naturally occurnng B box polypeptides or biologically.active fragments thereof), and/or any of the combination therapy compositions discussed above. This method would be expected to be useful for any condition that is mediated by an inflammatory cytokine cascade, including any of those that have been previously enumerated. As with previously described ifZ vivo methods, preferred conditions include appendicitis, peptic, gastric or duodenal ulcers, peritonitis, pancreatitis, ulcerative, pseudomembranous, acute or ischemic colitis, hepatitis, Crohn's disease, asthma, allergy, anaphylactic shock, organ ischemia, reperfusion injury, organ necrosis, hay fever, sepsis, septicemia, endotoxic shock, cachexia, septic abortion, disseminated bacteremia, burns, Alzheimer's disease, cerebral infarction, cerebral embolism, spinal cord injury, paralysis, allograft rejection or graft-versus-host disease. In the most preferred embodiments, the condition is endotoxic shoclc or allograft rejection.
Where the condition is allograft rejection, the composition may advantageously also include an immunosuppressant that is used to inhibit allograft rejection, such as cyclosporin.
These methods can also usefully include the administration of an antagonist of an eaxly sepsis mediator, an anti-a~~i3 antibody, an anti IL-9 antibody, a antagonist (e.g., CTLA4Ig, an anti-CD80 antibody, an anti-CD86 antibody), methotrexate, and/or a CD40 antagonist (e.g., anti-CD40 ligand (CD40L)). The nature of these agents has been previously discussed.
The B box polypeptides and biologically active fragments thereof described herein can be used to induce inflammatory cytokines in the appropriate isolated cells in vitro, or ex vivo, or as a treatment ih vivo. In any of these treatments, the polypeptide or fragment can be administered by providing a DNA or RNA vector encoding the B box or B box fragment, with the appropriate control sequences operably linked to the encoded B box or B box fragment, so that the B box or B
box fragment is synthesized in the treated cell or patient. he vivo applications include the use of the B box polypeptides or B box fragment polypeptides or vectors as a weight loss treatment. See WO 00/47104 (the entire teachings of which are incorporated herein by reference), demonstrating that treatment with HMGB 1 induces weight loss.
In certain embodiments, the present invention is directed to methods of stimulating the release of a proinflammatory cytokine from a cell. The method comprises treating the cell with any of the B box polypeptides or biologically active B box fragment polypeptides, for example, polypeptides that comprise or consist of the sequence of SEQ ID NO:S, SEQ ID N0:20, SEQ ID NO:S~, SEQ ID N0:16, or SEQ ID N0:23, as described herein (including non-naturally occurring B box polypeptides and fragments). This method is useful for in vitro applications, for example, for studying the effect of proinflarmnatory cytokine production on the biology of the producing cell. Since the HMGB B box has the activity of the HMGB
protein, the B box would also be expected to induce weight loss. Therefore, in additional embodiments, the present invention is a method for effecting weight loss or treating obesity in a patient. The method comprises administering to the patient an effective amount of any of the B box polypeptides or B box fragment polypeptides described herein (including non-naturally occurring B box polypeptides and fragments). In another embodiment, the B box polypeptide or B box fragment polypeptide is in a pharmaceutically acceptable carrier.
Screening for Modulators of the Release of Proinflammatory Cytolcines from Cells The present invention is also directed to a method of determining whether a compound (test compound) inhibits inflammation and/or an inflammatory response.
The method comprises combining the compound with (a) a cell that releases a proinflammatory cytolcine when exposed to a vertebrate HMGB B box or a biologically active fragment thereof, and (b) the HMGB B box or a biologically active fragment thereof, and then determining whether the compound inhibits the release of the proinflammatory cytokine from the cell, as compared to a suitable control. A compound that inhibits the release of the proinflaxnmatory cytokine in this assay is a compound that can be used to treat inflammation and/or an inflammatory response. The HMGB B box or biologically active HMGB B box fragment can be endogenous to the cell or can be introduced into the cell using standard recombinant molecular biology techniques.
Any cell that releases a proinflammatory cytokine in response to exposure to a vertebrate HMGB B box or biologically active fragment thereof in the absence of a test compound would be expected to be useful for this invention. It is envisioned that the cell that is selected would be important in the etiology of the condition to be treated with the inhibitory compound that is being tested. For many conditions, it is expected that the preferred cell is a human macrophage.
Any method for determining whether the compound inhibits the release of the proinflammatory cytokine from the cell would be useful for these embodiments.
It is envisioned that the preferred methods are the direct measurement of the proinflarmnatory cytolcine, for example, with any of a number of cormnercially available ELISA assays. However, in some embodiments, the measurement of the inflammatory effect of released cytokines may be preferable, particularly when there are several proinflammatory cytokines produced by the test cell. As previously discussed, for many important disorders, the predominant proinflammatory cytokines axe TNF, IL-la, IL-lei, MIF or IL-6; particularly TNF.
The present invention also features a method of determining whether a compound increases an inflammatory response and/or inflammation. The method comprises combining the compound (test compound) with (a) a cell that releases a proinflammatory cytokine when exposed to a vertebrate HMGB A box or a biologically active fragment thereof, and (b) the HMGB A box or biologically active fragment, and then determining whether the compound increases the release of the proinflammatory cytolcine from the cell, as compared to a suitable control. A
compound that increases the release of the proinflammatory cytokine in this assay is a compound that can be used to increase an inflammatory response and/or inflammation. The HMGB A box or HMGB A box biologically active fragment can be endogenous to the cell or can be introduced into the cell using standard recombinant molecular biology techniques.
Similar to the cell types useful for identifying inhibitors of inflammation described above, any cell in which release of a proinflammatory cytokine is normally inhibited in response to exposure to a vertebrate HMGB A box or a biologically active fragment thereof in the absence of any test compound would be expected to be useful for this invention. It is envisioned that the cell that is selected would be important in the etiology of the condition to be treated with the inhibitory compound that is being tested. For many conditions, it is expected that the preferred cell is a human macrophage.
Any method for determining whether the compound increases the release of the proinflammatory cytokine from the cell would be useful for these embodiments.
It is envisioned that the preferred methods are the direct measurement of the proinflammatory cytokine, for example, with any of a number of commercially available ELISA assays. However, in some embodiments, the measurement of the inflammatory effect of released cytokines may be preferable, particularly when there are several proinflammatory cytokines produced by the test cell. As previously discussed, for many important disorders, the predominant proinflammatory cytokines are TNF, IL-la, IL-lei, MIF or IL-6; particularly TNF.
Preferred embodiments of the invention are described in the following examples. Other embodiments within the scope of the invention will be apparent to one skilled in the art from consideration of the specification or practice of the invention as disclosed herein. It is intended that the specification, together with the examples and claims, be considered exemplary only.
Example 1: Materials and Methods Cloning of HMGBI and Pf~oduction of HMGBl Mutants The following methods were used to prepare clones and mutants of human HMGB 1. Recombinant full length human HMGB 1 (651 base pairs; GenBank Accession Number U51677) was cloned by PCR amplification from a human brain Quick-Clone cDNA preparation (Clontech, Palo Alto, CA) using the following primers; forward primer: 5' GATGGGCAAAGGAGATCCTAAG 3' (SEQ ID N0:6) and reverse primer: 5' GCGGCCGCTTATTCATCATCATCATCTTC 3' (SEQ ID
N0:7). Human HMGB 1 mutants were cloned and purified as follows. A truncated form of human HMGB 1 was cloned by PCR amplification from a Human Brain Quick-Clone cDNA preparation (Clontech, Palo Alto, CA). The primers used were (forward and reverse, respectively):
Carboxy terminus mutant (557 bp): 5' GATGGGCAAAGGAGATCCTAAG 3' (SEQ
ID N0:8) and 5' GCGGCCGC TCACTTGGTTTTTTCAGCCTTGAC 3' (SEQ ID
N0:9).
Amino terminus+B box mutant (486 bp): 5' GAGCATAAGAAGAAGCACCCA 3' (SEQ ID NO:10) and 5' GCGGCCGC TCACTTGCTTTTTTCAGCCTTGAC 3' (SEQ ID NO:l 1).
B box mutant (233 bp): 5' AAGTTCAAGGATCCCAATGCAAAG 3' (SEQ ID
N0:12) and 5' GCGGCCGCTCAATATGCAGCTATATCCTTTTC 3' (SEQ ID
N0:13).
Amino terminus+A box mutant (261 bp): 5' GATGGGCAAAGGAGATCCTAAG 3' (SEQ ID NO: 14) and 5' TCACTTTTTTGTCTCCCCTTTGGG 3' (SEQ ID NO:15).
A stop codon was added to each mutant to ensure the accuracy of protein size.
PCR products were subcloned into pCRII-TOPO vector EcoRI sites using the TA
cloning method per manufacturer's instruction (Invitrogen, Carlsbad, CA).
After amplification, the PCR product was digested with EcoRI and subcloned into an expression vector with a GST tag pGEX (Pharmacia); correct orientation and positive clones were confirmed by DNA sequencing on both strands. The recombinant plasmids were transformed into protease deficient E coli strains or BL21(DE3)plysS (Novagen, Madison, WI) and fusion protein expression was induced by isopropyl-D-thiogalactopyranoside (IPTG). Recombinant proteins were obtained using affinity purification with the glutathione Sepharose resin column (Pharmacia).
The HMGB mutants generated as described above have the following amino acid sequences:
Wild type HMGB 1:
MGKGDPKKPTGKMSSYAFFVQTCREEHKKKHPDASVNFSEFSKKCSERWKT
MSAKEKGKFEDMAKADKARYEREMKTYIPPKGETKKKFKDPNAPKRLP SAF
FLFCSEYRPKIKGEHPGLSIGDVAKKLGEMWNNTAADDKQPYEKKAAKLKE
KYEKDIAAYRAKGKPDAAKKGVVKAEKSKKKKEEEEDEEDEEDEEEEEDEE
DEEDEEEDDDDE (SEQ ID N0:18) Carboxy terminus mutant:
MSAKEKGKFEDMAKADKARYEREMKTYIPPKGETKKKFKDPNAPKRLP SAF
FLFCSEYRPKIKGEHPGLSIGDVAKKLGEMWNNTAADDKQPYEKKAAKLKE
KYEKDIAAYRAKGKPDAAKKGVVKAEKSK (SEQ ID NO: 19) B Box mutant: FKDPNAPKRLPSAFFLFCSEYRPKIKGEHPGLSIGDVAKKLGEM
WNNTAADDKQPYEKKAAKLKEKYEKDIAAY (SEQ ID NO: 20) Amino terminus + A Box mutant: MGKGDPKKPTGKMSSYAFFVQTCREEHKKK
HPDASVNFSEFSKKCSERWKTMSAKEKGKFEDMAKADKARYEREMKTYIPP
KGET (SEQ ID NO: 21), wherein the A box consists of the sequence PTGKMSSYAFFVQTCREEHKKKHPDASVNFSEFSKKCSERWKTMSAKEKGK
FEDMAKADKARYEREMKTYIPPKGET (SEQ ID N0:22) A polypeptide generated from a GST vector lacking HMGB 1 protein was included as a control (containing a GST tag only). To inactive the bacterial DNA
that bound to the wild type HMGB 1 and some of the mutants (carboxy terminus and B box), DNase I (Life Technologies), for carboxy terminus and B box mutants, or benzonase nuclease (Novagen, Madison, WI), for wild type HMGB1, was added at about 20 units/ml bacteria lysate. Degradation of DNA was verified by ethidium bromide staining of the agarose gel containing HMGB 1 proteins before and after the treatment. The protein eluates were passed over a polymyxin B cohunn (Pierce, Rockford, IL) to remove any contaminating LPS, and dialyzed extensively against phosphate buffered saline to remove excess reduced glutathione. The preparations were then lyophilized and redissolved in sterile water before use. LPS levels were less than 60 pg/~g protein for all of the mutants and 300 pg/~g for wild type HMG-1, as measured by Limulus amebocyte lysate assay (Bio Whittaker Inc., Walkersville, MD). The integrity of protein was verified by SDS-PAGE. Recombinant rat HMGB 1 (Wang et al., Science 285: 248-251, 1999) was used in some experiments since it does not have degraded fragments as observed in purified human HMGB1.
Peptide Synthesis Peptides were synthesized and HPLC purified at Utah State University Biotechnology Center (Logan, Utah) at 90% purity. Endotoxin was not detectable in the synthetic peptide preparations as measured by Limulus assay.
Cell Culture Murine macrophage-like RAW 264.7 cells (American Type Culture Collection, Roclcville, MD) were cultured in RPMI 1640 medium (Life Technologies, Grand Island NY) supplemented with 10% fetal bovine serum (Gemini, Catabasas, CA), penicillin and streptomycin (Life Technologies) and were used at 90% confluence in serum-free Opti-MEM I medium (Life Technologies, Grand Island, NY). Polymyxin B (Sigma, St. Louis, MO) was routinely added at 100-1,000 units/ml to neutralize the activity of any contaminating LPS as previously described; polymyxin B alone did not influence cell viability assessed with trypan blue (Wang et al., supra). Polymyxin B was not used in experiments of synthetic peptide studies.
Measuf°ement of TNF Release From Cells TNF release was measured by a standard murine fibroblast L929 (ATCC, American Type Culture Collection, Rockville, MD) cytotoxicity bioassay (Bianchi et al., Journal of Experimental Medicine 183:927-936, 1996) with the minimum detectable concentration of 30 pg/ml. Recombinant mouse TNF was obtained from R&D system Inc., (Minneapolis, MN). Murine fibroblast L929 cells (ATCC) were cultured in DMEM (Life Technologies, Grand Island, NY) supplemented with 10%
fetal bovine serum (Gemini, Catabasas, CA), penicillin (50 units/ml) and streptomycin (50 ~g/ml) (Life Technologies) in a humidified incubator with 5%
COz.
Antibody Pr~oductio~c Polyclonal antibodies against HMGB 1 B box were raised in rabbits (Cocalico Biologicals, Inc., Reamstown, PA) and assayed for titer by immunoblotting. IgG
was purified from anti-HMGB 1 antiserum using Protein A agarose according to manufacturer's instructions (Pierce, Rockford, IL). Anti-HMGB 1 B box antibodies were affinity purified using cyanogen bromide activated Sepharose beads (Cocalico Biological, Inc.). Non-immune rabbit IgG was purchased from Sigma (St. Louis, MO). Antibodies detected full length HMGB 1 and B box in immunoassay, but did not cross react with TNF, IL-1 and IL-6.
Labeling of HMGBI with Na-'ZSI and cell surface binding Purified HMGB1 protein (10 ~,g) was radiolabeled with 0.2 mCi of carrier-free lzsl (NEN Life Science Products Inc., Boston, MA) using Iodo-beads (Pierce, Roclcford, IL) according to the manufacturer's instructions. 'zsI_HMGB 1 protein was separated from un-reacted'zsI by gel chromatography columns (P6 Micro Bio-Spin Chromatography Columns, Bio-Rad Laboratories, Hercules, CA) previously equilibrated with 300 mM sodium chloride, 17.5 mM sodium citrate, pH 7.0, and 0.1 % bovine serum albumin (B SA). The specific activity of the eluted HMGB 1 was about 2.8 x 106 cpm/~g protein. Cell surface binding studies were perfouned as previously described (Yang et al., Am. J. Physiol. 275:C675-C683, 1998). RAW
264.7 cells were plated on 24-well dishes and grown to confluence. Cells were washed twice with ice-cold PBS containing 0.1% BSA and binding was carried out at 4°C for 2 hours with 0.5 ml binding buffer containing 120 mM sodium chloride, 1.2 mM magnesium sulfate, 15 mM sodium acetate, 5 mM potassium chloride, 10 mM
Tris.HCl, pH 7.4, 0.2% BSA, SmM glucose and 25,000 cpm'z5I-HMGB1. At the end of the incubation the supernatants were discarded and the cells were washed three times with 0.5 ml of ice-cold PBS with 0.1% BSA and lysed with 0.5 ml of 0.5 N NaOH and 0.1 % SDS for 20 minutes at room temperature. The radioactivity in the lysate was then measured using a gamma counter. Specific binding was determined as total binding minus the radioactivity obtained in the presence of an excess amount of unlabeled HMGB 1 or A box proteins.
Animal Expe~imev~ts TNF knock out mice were obtained from Amgen (Thousand Oaks, CA) and were on a B6x129 background. Age-matched wild-type B6x129 mice were used as a control for the studies. Mice were bred in-house at the University of Florida specific pathogen-free transgenic mouse facility (Gainesville, FL) and were used at 6-8 weeks of age.
Male 6-8 week old Balb/c and C3H/HeJ mice were purchased from Harlen Sprague-Dawley (Indianapolis, IN) and were allowed to acclimate for 7 days before use in experiments. All animals were housed in the North Shore University Hospital Animal Facility under standard temperature, and a light and dark cycle.
Cecal Ligation a~cd Puncture Cecal ligation and puncture (CLP) was performed as described previously (Fink and Heard, J. Surg. Res. 49:186-196, 1990; Wichmann et al., Crit. Care Med.
26:2078-2086, 1998; and Remiclc et al., Shock 4:89-95, 1995). Briefly, Balb/c mice were anesthetized with 75 mg/kg ketamine (Fort Dodge, Fort Dodge, Iowa) and 20 mg/kg of xylazine (Bohringer Ingelheim, St. Joseph, MO) intramuscularly. A
midline incision was performed, and the cecum was isolated. A 6-0 prolene suture ligature was placed at a level 5.0 mm from the cecal tip away from the ileocecal valve.
The ligated cecal stump was then punctured once with a 22-gauge needle, without direct extrusion of stool. The cecum was then placed baclc into its normal intra-abdominal position. The abdomen was then closed with a running suture of prolene in two layers, peritoneum and fascia separately to prevent leakage of fluid.
All animals were resuscitated with a normal saline solution administered sub-cutaneously at 20 ml/kg of body weight. Each mouse received a subcutaneous injection of imipenem (0.5 mg/mouse) (Primaxin, Merck & Co., Inc., West Point, PA) 30 minutes after the surgery. Animals were then allowed to recuperate.
Mortality was recorded for up to 1 week after the procedure; survivors were followed for 2 weeks to ensure no late mortalities had occurred.
D-galactosamine Sev~sitized Mice The D-galactosamine-sensitized model has been described previously (Galanos et al., Proc Natl. Acad. Sci. USA 76: 5939-5943, 1979; and Lehmann et al., J. Exp. Med. 165: 657-663, 1997). Mice were injected intraperitoneally with 20 mg D-galactosamine-HCL (Sigma)/mouse (in 200.x,1 PBS) and 0.1 or 1 mg of either HMBG1 B box or vector protein (in 200 ~,1 PBS). Mortality was recorded daily for up to 72 hours after injection; survivors were followed for 2 weeks, and no later deaths from B box toxicity were observed.
Spleen bacteria culture Fourteen mice received either anti-HMGB 1 antibody (n=7) or control (n=7) at 24 and 30 hours after CLP, as described herein, and were euthanized for necropsy.
Spleen bacteria were recovered as described previously (Villa et al., J.
Endotoxin Res. 4:197-204, 1997). Spleens were removed using sterile technique and homogenized in 2 ml of PBS. After serial dilutions with PBS, the homogenate was plated as 0.15 ml aliquots on tryptic soy agar plates (Difco, Detroit, MI) and CFU
were counted after overnight incubation at 37°C.
Statistical Av~alysis Data axe presented as mean ~ SEM unless otherwise stated. Differences between groups were determined by two-tailed Student's t-test, one-way ANOVA
followed by the least significant difference test or 2 tailed Fisher's Exact Test.
Example 2: Mapping the HMGB 1 Domains for Promotion of Cytokine Activity HMGB 1 has 2 folded DNA binding domains (A and B boxes) and a negatively-charged acidic caxboxyl tail. To elucidate the structural basis of cytokine activity, and to map the inflammatory protein domain, we expressed full length and truncated forms of HMGB 1 by mutagenesis and screened the purified proteins for stimulating activity in monocyte cultures (FIG. 1). Full length HMGB1, a mutant in which the carboxy terminus was deleted, a mutant containing only the B
box, and a mutant containing only the A box were generated. These mutants of human HMGB 1 were made by polymerase chain reaction (PCR) using specific primers as described herein, and the mutant proteins were expressed using a glutathione S-transferase (GST) gene fusion system (Pharmacia Biotech, Piscataway, N~ in accordance with the manufacturer's instructions. Briefly, DNA fragments, made by PCR methods, were fused to GST fusion vectors and amplified in E.
coli.
The expressed HMGB 1 protein and HMGB 1 mutants were then isolated using a GST
affinity column.
The effect of the mutants on TNF release from Murine macrophage-like RAW 264.7 cells (ATCC) was carried out as follows. R.AW 264.7 cells were cultured in RPMI 1640 medium (Life Technologies, Grand Island NY) supplemented with 10% fetal bovine serum (Gemini, Catabasas, CA), penicillin and streptomycin (Life Technologies). Polymyxin (Sigma, St. Louis, MO) was added at 100 units/ml to suppress the activity of any contaminating LPS. Cells were incubated with 1 ~,g/ml of full length (wild-type) HMGB 1 and each HMGB 1 mutant protein in Opti-MEM I medium for 8 hours. Conditioned supernatants (containing TNF which had been released from the cells) were collected and TNF released from the cells was measured by a standard marine fibroblast L929 (ATCC) cytotoxicity bioassay (Bianchi et al., supra) with the minimum detectable concentration of 30 pg/ml.
Recombinant mouse TNF was obtained from R & D Systems Inc., (Minneapolis, MN) and used as control in these experiments. The results of this study are shown in FIG. 1. Data in FIG. 1 are all presented as mean + SEM unless otherwise indicated.
(N=6-10).
As shown in FIG. 1, wild-type HMGB 1 and carboxyl-truncated HMGB 1 significantly stimulated TNF release by monocyte cultures (marine macrophage-like RAW 264.7 cells). The B box was a potent activator of monocyte TNF release.
This stimulating effect of the B box was specific, because A box only weakly activated TNF release.
Example 3: HMGB 1 B Box Protein Promotes Cytokine Activity in a Dose Dependent Manner To further examine the effect of HMGB 1 B box on cytokine production, varying amounts of HMGB1 B box were evaluated for the effects on TNF, IL-1B, and IL-6 production in marine macrophage-like RAW 264.7 cells. RAW 264.7 cells were stimulated with B box protein at 0-10 ~.ghnl, as indicated in FIGS. 2A-2C
for 8 hours. Conditioned media were harvested and measured for TNF, IL-1~3 and IL-6 levels. TNF levels were measured as described herein, and IL-lei and IL-6 levels were measured using the mouse IL-lei and IL-6 enzyme-linleed immunosorbent assay (ELISA) kits (R&D System Inc., Minneapolis, MN) and N>5 for all experiments.
The results of the studies are shown in FIGS. 2A-2C.
As shown in FIG. 2A, TNF release from RAW 264.7 cells increased with increased amounts of B box administered to the cells. As shown in FIG. 2B, addition of 1 wg/ml or 10 ~,g/ml of B box resulted in increased release of IL-1 ~3 from RAW
264.7 cells. In addition, as shown in FIG. 2C, IL-6 release from RAW 264.7 cells increased with increased amounts of B box administered to the cells.
The kinetics of B box-induced TNF release were also examined. TNF release and TNF mRNA expression were measured in RAW 264.7 cells induced by B box polypeptide or GST tag polypeptide only used as a control (vector) (10 ~.g/ml) for 0 to 48 hours. Supernatants were analyzed for TNF protein levels by an L929 cytotoxicity assay (N=3-5) as described herein. For mRNA measurement, cells were plated in 100 mm plates and treated in Opti-MEM I medium containing B box polypeptide or the vector alone for 0, 4, 8, or 24 hours, as indicated in FIG.
2D. The vector only sample was assayed at the 4 hour time point. Cells were scraped off the plate and total RNA was isolated using the RNAzoI B method in accordance with the manufacturer's instructions (Tel-Test "B", Inc., Friendswood, TX). TNF (287 bp) was measured by RNase protection assay (Ambion, Austin, TX). Equal loading and the integrity of RNA was verified by ethidium bromide staining of the RNA
sample on an agarose-formaldehyde gel. The results of the RNase protection assay are shown in FIG. 2D. As shown in FIG. 2D, B box activation of monocytes occurred at the level of gene transcription, because TNF mRNA was increased significantly in monocytes exposed to B box protein (FIG. 2B). TNF mRNA expression was maximal at 4 hours and decreased at 8 and 24 hours. The vector only control (GST
tag) showed no effect on TNF mRNA expression. A similar study was carried out measuring TNF protein released from RAW 264.7 cells 0, 4, 8, 24, 32 or 48 hours after administration of B box or vector only (GST tag), using the L929 cytotoxicity assay described herein. Compared to the control (medium only), B box treatment stimulated TNF protein expression (FIG. 2E) and vector alone (FIG. 2F) did not.
Data are representative of three separate experiments. Together these data indicate that the HMGB 1 B box domain has cytolcine activity and is responsible for the cytolcine stimulating activity of full length HMGB 1.
In summary, the HMGB 1 B box dose-dependently stimulated release of TNF, IL-1(3 and IL-6 from monocyte cultures (FIGS. 2A-2C), in agreement with the inflammatory activity of full length HMGB 1 (Andersson et al., J. Exp. Med.
192:
565-570, 2000). In addition, these studies indicate that maximum TNF protein release occurred within 8 hours (FIG. 2E). This delayed pattern of TNF release is -SS-similar to TNF release induced by HMGB 1 itself, and is significantly later than the kinetics of TNF induced by LPS (Andersson et al., supra).
Example 4: The First 20 Amino Acids of the HMGB 1 B Box Stimulate TNF Activity The TNF-stimulating activity of the HMGB 1 B box was further mapped.
This study was carried out as follows. Fragments of the B box were generated using synthetic peptide protection techniques, as described herein. Five HMGB 1 B
box fragments (from SEQ ID N0:20), containing amino acids 1-20, 16-25, 30-49, 45-64, or 60-74 of the HMGB 1 B box were generated, as indicated in FIG. 3. R.AW
264.7 cells were treated with B box (1 ~.g/ml) or a synthetic peptide fragment of the B box (10 ~,g/ml), as indicated in FIG. 3, for 10 hours and TNF release in the supernatants was measured as described herein. Data shown are mean ~ SEM, (n=3 experiments, each done in duplicate and validated using 3 separate lots of synthetic peptides). As shown in FIG. 3, TNF-stimulating activity was retained by a synthetic peptide corresponding to amino acids 1-20 of the HMGB1 B box of SEQ ID N0:20 (fkdpnaplcrlpsafflfcse; SEQ ID N0:23). The TNF stimulating activity of the 1-mer was less potent than either the full length synthetic B box (1-74-mer), or full length HMGB 1, but the stimulatory effects were specific because the synthetic mers for amino acid fragments containing 16-25, 30-49, 45-64, or 60-74 of the HMGB 1 B box did not induce TNF release. These results are direct evidence that the macrophage stimulating activity of the B box specifically maps to the first 20 amino acids of the HMGB B box domain of SEQ ID N0:20). This B box fragment can be used in the same manner as a polypeptide encoding a full length B box polypeptide, for example, to stimulate release of a proinflammatory cytokine, or to treat a condition in a patient characterized by activation of an inflammatory cytokine cascade.
Example 5: HMGB 1 A Box Protein Antagonizes HMGB 1 Induced Cytokine Activity in a Dose Dependent Manner Weale agonists are by definition antagonists. Since the HMGB 1 A box only weakly induced TNF production, as shown in FIG. 1, the ability of HMGB 1 A box to act as an antagonist of HMGB 1 activity was evaluated. This study was carried out as follows. Sub-confluent RAW 264.7 cells in 24-well dishes were treated with HMGB 1 (1 wg/ml) and 0, 5, 10, or 25 ~,g/ml of A box for 16 hours in Opti-MEM
I
medium in the presence of polymyxin B (100 units/ml). The TNF-stimulating activity (assayed using the L929 cytotoxicity assay described herein) in the sample receiving no A box was expressed as 100%, and the inhibition by A box was expressed as percent of HMGB 1 alone. The results of the effect of A box on TNF
release from RAW 264.7 cells is shown in FIG. 4A. As shown in FIG. 4A, the A
box dose-dependently inhibited HMGB 1 induced TNF release with an apparent ECSo of approximately 7.5 wg/ml. Data in FIG. 4A are presented as mean ~ SD (n= 2-3 independent experiments).
Example 6: HMGB 1 A Box Protein Inhibits Full Length HMGB 1 and HMGB 1 B
Box Cytolcine Activity Antagonism of full length HMGB 1 activity by HMGB 1 A box or GST tag (vector control) was also determined by measuring TNF release from RAW 264.7 macrophage cultures stimulated by co-addition of A box with full length HMGB
1.
RAW 264.7 macrophage cells (ATCC) were seeded into 24-well tissue culture plates and used at 90% confluence. The cells were treated with HMGB1, and/or A boxes as indicated for 16 hours in Optimum I medium (Life Technologies, Grand Island, NY) in the presence of polymyxin B (100 units/ml, Sigma, St. Louis, MO) and supenlatants were collected for TNF measurement (mouse ELISA kit from R&D
System Inc, Minneapolis, MN). TNF-inducing activity was expressed as a percentage of the activity achieved with HMGB 1 alone. The results of these studies are shown in FIG. 4B. FIG. 4B is a histogram of the effect of HMGB1 (HMG-1), alone, A
box alone, Vector (control) alone, HMGB 1 in combination with A box, and HMGB 1 in combination with vector. As shown in FTG. 4B, HMGB 1 A box significantly attenuated the TNF stimulating activity of full length HMGB 1.
Example 7: HMGB1 A Box Protein Inhibits HMGB1 Cytokine Activity by Binding to It To determine whether the HMGB 1 A box acts as an antagonist by displacing HMGB 1 binding, 'z5I-labeled-HMGB 1 was added to macrophage cultures and binding was measured at 4°C after 2 hours. Binding assays in R.AW 264.7 cells were performed as described herein. lzSl-HMGB 1 binding was measuxed in RAW 264.7 cells plated in 24-well dishes for the times indicated in FIG. SA. Specific binding shown equals total cell-associated lzsl-HMGB 1 (CPM/well) minus cell associated CPMlwell in the presence of 5,000 fold molar excess of unlabeled HMGB 1. FIG.
SA is a graph of the binding of lzsl_HMGB 1 over time. As shown in FIG. SA, HMGB 1 exhibited saturable first order binding kinetics. The specificity of binding was assessed as described in Example 1.
In addition, lzsl-HMG-1 binding was measured in RAW 264.7 cells plated on 24-well dishes and incubated with lzsl HMGB 1 alone or in the presence of unlabeled HMGB 1 or A box. The results of this binding assay are shown in FIG. 5B. Data represents mean ~ SEM from 3 sepaxate experiments. FIG. SB is a histogram of the cell surface binding of lzSl-HMGB 1 in the absence of unlabeled HMGB 1 or HMGB
A box, or in the presence of 5,000 molar excess of unlabeled HMGB 1 or HMGB 1 A
box, measured as a percent of the total CPM/well. In FIG. SB, "Total" equals counts per minutes (CPM)lwell of cell associated'z5I-HMGB1 in the absence of unlabeled HMGB 1 or A box for 2 hours at 4°C. "HMGB 1" or "A box" equals CPMlwell of cell-associated izsl_HMGB 1 in the presence of 5,000 molar excess of unlabeled HMGB 1 or unlabeled A box. The data are expressed as the percent of total counts obtained in the absence of unlabeled HMGBl proteins (2,382,179 CPM/well).
These results indicate that the HMGB 1 A box is a competitive antagonist of HMGB 1 activity ih vity~o and inhibits the TNF-stimulating activity of HMGB 1.
Example 8: Inhibition of Full Length HMGB l and HMGB 1 B Box Cytokine Activity by Anti-B Box Polyclonal Antibodies.
The ability of antibodies directed against the HMGB 1 B box to modulated the effect of full length or HMGB 1 B box was also assessed. Affinity purified antibodies directed against the HMGB 1 B box (B box antibodies) were generated as described herein and using standard techniques. To assay the effect of the antibodies on HMGB 1-induced or HMGB 1 B box-induced TNF release from RAW 264.7 cells, sub-confluent RAW 264.7 cells in 24-well dishes were treated with HMG-1 (1 ~g/ml) or HMGB1 B box (10 ~g/ml) for 10 hours with or without anti-B box antibody (25 ~.g/ml or 100 ~.g/ml antigen affinity purified, Cocalico Biologicals, Inc., Reamstovnz, PA) or non-immune IgG (25 ~,glml or 100 ~,g/ml; Sigma) added. TNF
release from the RAW 264.7 cells was measured using the L929 cytotoxicity assay as described herein. The results of this study are shown in FIG. 6, which is a histogram of TNF released by RAW 264.7 cells administered nothing, 1 ~,g/ml of HMGB1, 1 ~,g/ml of HMGB 1 plus 25 ~,g/ml of anti-B box antibody, 1 ~,g/ml of HMGB 1 plus 25 ~g/ml of IgG (control), 10 ~,glml of B-box, 10 ~,g/ml of B-box plus 100 ~,g/ml of anti-B box antibody or 10 ~,g/ml of B-box plus 100 ~.g/ml of IgG (control).
The amount of TNF released from the cells induced by HMGB 1 alone (without addition of B box antibodies) was set as 100%, and the data shown in FIG. 6 are the results of 3 independent experiments. As shown in FIG. 6, affinity purified antibodies directed against the HMGB 1 B box significantly inhibited TNF release induced by either full length HMGB 1 or the HMGB 1 B box. These results indicate that such an antibody can be used to modulate HMGB 1 function.
Example 9: HMGB 1 B Box Protein is Toxic to D-galactosamine-sensitized Balb/c Mice To investigate whether the HMGB 1 B box has cytolcine activity in vivo, we administered HMGB 1 B box protein to unanesthetized Balb/c mice sensitized with D-galactosamine (D-gal), a model that is widely used to study cytokine toxicity (Galanos et al., supra). Briefly, mice (20-25 grams, male, Harlan Sprague-Dawley, Indianapolis, IN) were intraperitoneally injected with D-gal (20 mg) (Sigma, St.
Louis, Missouri) and B box (0.1 mg/ml/mouse or 1 mg/ml/mouse) or GST tag (vector; 0.1 mg/ml/mouse or 1 mg/ml/mouse), as indicated in Table 1. Survival of the mice was monitored up to 7 days to ensure no late death occurred. The results of this study are shown in Table 1.
Table 1: Toxicity of HMGB 1 B box on D-galactosamine-sensitized Balb/c Mice Treatment Alive/total Control - 10/ 10 Vector 0.1 mg/mouse 2/2 1 mg/mouse 3/3 B box 0.1 mg/mouse 6/6 1 mg/mouse 2/8 *P<0.01 versus vector alone as tested by Fisher's Exact Test The results of this study showed that the HMGB 1 B box was lethal to D-galactosamine-sensitized mice in a dose-dependent mamier. In all instances in which death occurred, it occurred within 12 hours. Lethality was not observed in mice treated with comparable preparations of the purified GST vector protein devoid of B
box.
Example 10: Histology of D-galactosainine-sensitized Balb/c Mice or C3H/HeJ
Mice Administered HMGB 1 B Box Protein To further assess the lethality of the HMGB 1 B box protein in vivo the HMGB1 B box was again administered to D-galactosamine-sensitized Balb/c mice.
Mice (3 per group) received D-gal (20 mg/mouse) plus B box or vector (1 mg/mouse) intraperitorieally for 7 hours and were then sacrificed by decapitation.
Blood was collected, and organs (liver, heart, kidney and lung) were harvested and fixed in 10% formaldehyde. Tissue sections were prepared with hematoxylin and eosin staining for histological evaluation (Criterion Inc., Vancouver, Canada). The results of these studies axe shown in FIGS. 7A-7J, which are scanned images of hematoxylin and eosin stained kidney sections (FIG. 7A), myocardium sections (FIG.
7C), lung sections (FIG. 7E), and liver sections (FIGS. 7G and 7I) obtained from an untreated mouse and kidney sections (FIG. 7B), myocardium sections (FIG. 7D), lung sections (FIG. 7F), and liver sections (FIGS. 7H and 7J) obtained from mice treated with the HMGB 1 B box. Compared to the control mice, B box treatment caused no abnormality in kidneys (FIGS. 7A and 7B) and lungs (FIGS. 7E and 7F).
The mice had some ischemic changes and loss of cross striation in myocardial fibers "' in the heart (FIGS. 7C and 7D as indicated by the arrow in FIG. 7D). Liver showed most of the damage by the B box as illustrated by active hepatitis (FIGS. 7G-7J). In FIG. 7J, hepatocyte dropouts are seen surrounded by accumulated polymorphonuclear leukocytes. The arrows in FIG. 7J point to the sites of polymorphonuclear accumulation (dotted) or apoptotic hepatocytes (solid).
Administration of HMGB 1 B box in vivo also stimulated significantly increased serum levels of IL-6 (315+93 vs.20+7 pg/ml, B box vs. control, p<0.05) and IL-1~3 (15+3 vs. 4+1 pg/ml, B box vs. control, p<0.05).
Administration of B box protein to C3H/HeJ mice (which do not respond to endotoxin) was also lethal, indicating that HMGB 1 B box is lethal in the absence of LPS signal transduction. Hematoxylin and eosin stained sections of lung and kidney collected 8 hours after achninistration of B box revealed no abnormal morphologic changes. Examination of sections from the heart however, revealed evidence of ischemia with loss of cross striation associated with amorphous pink cytoplasm in myocardial fibers. Sections from liver showed mild acute inflammatory responses, with some hepatocyte dropout and apoptosis, and occasional polymorphonuclear leukocytes. These specific pathological changes were comparable to those observed after administration of full length HMGB 1 and confirm that the B box alone can recapitulate the lethal pathological response to HMGB 1 ivc vivo.
To address whether the TNF-stimulating activity of HMGB 1 contributes to the mediation of lethality by B box, we measured lethality in TNF knock-out mice (TNF-KO, Nowak et al., Am. J. Physiol. Regul. Integr. Comp. Physiol. 278:
81209, 2000) and the wild-type controls (B6x129 strain) sensitized with D-galactosamine (20 mg/mouse) and exposed to B box (1 mg/mouse, injected intraperitoneally). The B box was highly lethal to the wild-type mice (6 dead out of nine exposed) but lethality was not observed in the TNF-KO mice treated with B
box (0 dead out of 9 exposed, p<0.05 v. wild type). Together with the data from the RAW 264.7 macrophage cultures, described herein, these data now indicate that the B box of HMGB 1 confers specific TNF-stimulating cytokine activity.
Example 11: HMGB 1 Protein Level is Increased in Septic Mice To examine the role of HMGB 1 in sepsis, we established sepsis in mice and measured serum HMGB 1 using a quantitative immunoassay described previously (Wang et al., supra). Mice were subjected to cecal ligation and puncture (CLP), a well characterized model of sepsis caused by perforating a surgically-created cecal diverticulum, that leads to polymicrobial peritonitis and sepsis (Fink and Heard, supra; Wichmann et al., supra; and Remick et al., supra). Serum levels of were then measured (Wang et al., supra). FIG. 8 shows the results of this study in a graph that illustrates the levels of HMGB 1 in mice 0 hours, 8 hours, 18 hours, 24 hours, 48 hours, and 72 hours after subjection to CLP. As shown in FIG. 8, serum HMGB 1 levels were not significantly increased for the first eight hours after cecal perforation, then increased significantly after 18 hours (FIG. 8). Increased serum HMGB 1 remained at elevated plateau levels for at least 72 hours after CLP, a kinetic profile that is quite similar to the previously-described, delayed HMGB 1 kinetics in endotoxemia (Wang et al., supra). This temporal pattern of HMGB 1 release corresponded closely to the development of signs of sepsis in the mice. During the first eight hours after cecal perforation the animals were observed to be mildly ill, with some diminished activity and loss of exploratory behavior. Over the ensuing 18 hours the animals became gravely ill, huddled together in groups with piloerection, did not seelc water or food, and became minimally responsive to external stimuli or being examined by the handler.
Example 12: Treatment of Septic Mice with HMGB1 A Box Protein Increases Survival of Mice To determine whether the HMGB 1 A box can inhibit the lethality of HMGB 1 during sepsis, mice were subjected to cecal'perforation and treated by administration of A box beginning 24 hours after the onset of sepsis. CLP was performed on male Balb/c mice as described herein. Animals were randomly grouped, with 15-25 mice per group. The HMGB 1 A box (60 or 600 ~,ghnouse each time) or vector (GST
tag, 600 ~,g/mouse) alone was administered intraperitoneally twice daily for 3 days beginning 24 hours after CLP. Survival was monitored twice daily for up to 2 weeks to ensure no late death occurred. The results of this study are illustrated in FIG. 9, which is a graph of the effect of vector (GST; control) 60 ~,g/mouse or 600 ~g/mouse on survival over time (*P<0,03 vs. control as tested by Fisher's exact test).
As shown in FIG. 9, administration of the HMGB 1 A box significantly rescued mice from the lethal effects of sepsis, and improved survival from 28% in the animals treated with protein purified from the vector protein (GST) devoid of the A
box, to 68% in animals receiving A box (P<0.03 by Fischer's exact test). The rescuing effects of the HMGB 1 A box in this sepsis model were A box dose-dependent;
animals treated with 600 ~,g/mouse of A box were observed to be significantly more alert, active, and to resume feeding behavior as compared to either control animals treated with vector-derived preparations, or to animals treated with only 60 ~,g A box.
The latter animals remained gravely ill, with depressed activity and feeding for several days, and most died.
Example 13 : Treatment of Septic Mice with Anti-HMGB 1 Antibody Increases Survival of Mice Passive immunization of critically ill septic mice with anti-HMGB 1 antibodies was also assessed. In this study, male Balb/c mice (20-25 gm) were subjected to CLP, as described herein. Affinity purified anti-HMGB1 B box polyclonal antibody or rabbit IgG (as control) was administered at 600 ~,g/mouse beginning 24 hours after the surgery, and twice daily for 3 days. Survival was monitored for 2 weeks. The results of this study are shown in FIG. 1 OA, which is a graph of the survival of septic mice treated with either a control antibody or an anti-HMGB 1 antibody. The results show that anti-HMGB 1 antibodies administered to the mice 24 hours after the onset of cecal perforation significantly rescued animals from death as compared to administration of non-immune antibodies (p<0.02 by Fisher's exact test). Within 12 hours after administration of anti-HMGB 1 antibodies, treated animals showed increased activity and responsiveness as compared to controls receiving non-immune antibodies. Whereas animals treated with non-immune antibodies remained huddled, ill kempt, and inactive, the treated animals improved significantly and within 48 hours resumed normal feeding behavior.
Anti-HMGB 1 antibodies did not suppress bacterial proliferation in this model, because we observed comparable bacterial counts (CFU, the aerobic colony forming units) from spleen 31 hours after CLP in the treated animals as compared to animals receiving irrelevant antibodies (control bacteria counts = 3.50.9x104 CFU/g; n=7).
Animals were monitored for up to 2 weeks afterwards, and late deaths were not observed, indicating that treatment with anti-HMGB 1 conferred complete rescue from lethal sepsis, and did not merely delay death.
To our lazowledge, no other specific cytokine-directed therapeutic is as effective when administered so late after the onset of sepsis. By comparison, administration of anti-TNF actually increases mortality in this model, and anti-MIF
antibodies are ineffective if administered more than 8 hours after cecal perforation (Remick et al, supra; and Calandra et al., Nature Med. 6:164-170, 2000). These data demonstrate that HMGB 1 can be targeted as late as 24 hours after cecal perforation in order to rescue lethal cases of established sepsis.
In another example of the rescue of endotoxemic mice using anti-B box antibodies, anti-HMGB 1 B box antibodies were evaluated for their ability to rescue LPS-induced septic mice. Male Balb/c mice (20-25 gm, 26 per group) were treated with an LD75 dose of LPS (15 mg/kg) injected intraperitoneally (IP). Anti-HMGBl B box or non-immune rabbit serum (0.3 ml per mouse each time, IP) was given at time 0, +12 hours and +24 hours after LPS administration. Survival of mice was evaluated over time. The results of this study are shown in FIG. l OB, which is a graph of the survival of septic mice administered anti-HMGB 1 B box antibodies or non-immune serum. As shown in FIG. 1 OB, anti-HMGB 1 B box antibodies improved survival of the septic mice.
Example 14: Inhibition of HMGB 1 Signaling Pathway Using an Anti-RAGE
Antibody Previous data implicated RAGE as an HMGB 1 receptor that can mediate neurite outgrowth during brain development and migration of smooth muscle cells in wound healing (Hori et al. J. Biol. chem. 270:25752-25761, 1995; Merenmies et al.
J. Biol. Chem. 266:16722-16729, 1991; and Degryse et al., J. Cell Biol.
152:1197-1206, 2001). We measured TNF release in RAW 264.7 cultures stimulated with HMGB1 (1 ~,g/ml), LPS (0.1 ~,g/ml), or HMGB1 B box (1 ~,glml) in the presence of anti-RAGE antibody (25 ~,g/ml) or non-immune IgG (25 ~g/ml). Briefly, the cells were seeded into 24-well tissue culture plates and used at 90% confluence. LPS
(E.
coli 0111:B4, Sigma, St. Louis, MO) was sonicated for 20 minutes before use.
Cells were treated with HMGB1 (HMG-1; 1 ~,glml), LPS (0.1 ~g/ml), or HMGB1 B box (B Box; 1 ~,g/ml) in the presence of anti-RAGE antibody (25 ~g/ml) or non-immune IgG (25 ~,glml), as indicated in FIG. 11A, for 16 hours in serum-free Opti-MEM
I
medium (Life Technologies) and supernatants were collected for TNF measurement using the L929 cytotoxicity assay described herein. IgG purified polyclonal anti-RAGE antibody (Catalog No. sc-8230, N-16, Santa Cruz Biotech, Inc., Santa Cruz, CA) was dialyzed extensively against PBS before use. The results of this study are shown in FIG. 11A, which is a histogram of the effects of HMGB 1, LPS, or HMGB
B box in the presence of anti-RAGE antibodies or non-immune IgG (control) on TNF
release from RAW 264.7 cells. As shown in FIG. 11A, compared to non-immune IgG, anti-RAGE antibody significantly inhibited HMGB 1 B box-induced TNF
release. This suppression was specific, because anti-RAGE did not significantly inhibit LPS-stimulated TNF release. Notably, the maximum inhibitory effect of anti-RAGE decreased HMG-1 signaling by only 40%, suggesting that other signal transduction pathways may participate in HMGB 1 signaling.
To examine the effects of HMGB 1 or HMGB 1 B box on the NF-xB-dependent SLAM promoter, the following experiment was carried out. RAW
264.7 macrophages were transiently co-transfected with an expression plasmid encoding a marine MyD 88-dominant-negative (DN) mutant (corresponding to amino acids 146-296), or empty vector, plus a luciferase reporter plasmid under the control of the NF-xB-dependent SLAM promoter, as described by Means et al. (J.
Immunol. 166:4074-4082, 2001). A portion of the cells were then stimulated with full-length HMGBl (100 ng/ml), or purified HMGB1 B box (10 ~glml), for 5 hours.
Cells were then harvested and luciferase activity was measured, using standard methods. All transfections were performed in triplicate, repeated at least three times, and a single representative experiment is shown in FIG. 11B. As shown in FIG.
118, HMGB 1 stimulated luciferase activity in samples that were not co-transfected with the MyD 88 dominant negative, and the level of stimulation was decreased in samples that were co-transfected with the MyD 88 dominant negative. This effect was also observed in samples administered HMGB B box.
While tlus invention has been particularly shown and described with references to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.
SEQUENCE LISTING
<110> Critical Therapeutics, Inc.
Newman, Walter O'Keefe, Theresa L.
<120> USE OF HMGB FRAGMENTS AS
ANTI-INFLAMMATORY AGENTS
<130> 3258.1008003 <150> 60/427,846 <151> 2002-11-20 <150> 60/427,841 <151> 2002-1l-20 <160> 58 <170> FastSEQ for Windows Version 4.0 <210> 1 <211> 215 <212> PRT
<213> Homo sapiens <400> 1 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Tle Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Asp Glu Glu Asp Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 2 <211> 215 <212> PRT
<213> Mus musculus <400> 2 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro 65 70 ~ 75 80 Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Asp Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Glu Glu Glu Asp Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 3 <211> 209 <212> PRT
<213> Homo sapiens <400> 3 Met Gly Lys Gly Asp Pro Asn Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ser Ser Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Ser Lys Phe Glu Asp Met Ala Lys Ser Asp Lys Ala Arg Tyr Asp Arg Glu Met Lys Asn Tyr Val Pro Pro Lys Gly Asp Lys Lys Gly Lys Lys Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu His Arg Pro Lys Ile Lys Ser Glu His Pro Gly Leu Ser Ile Gly Asp Thr Ala Lys Lys Leu Gly Glu Met Trp Ser Glu Gln Ser Ala Lys Asp Lys Gln Pro Tyr Glu Gln Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Ser Glu Ala Gly Lys Lys Gly Pro Gly Arg Pro Thr Gly Ser Lys Lys Lys Asn Glu~Pro Glu Asp Glu Glu Glu Glu Glu Glu Glu Glu Asp Glu Asp Glu Glu Glu Glu Asp Glu Asp Glu Glu <210> 4 <211> 54 <212> PRT
<213> Homo Sapiens <400> 4 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser G1u Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 5 <211> 69 <212> PRT
<213> Homo Sapiens <400> 5 Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Ly~s Asp Ile Ala Ala <210> 6 <211> 22 <212> DNA
<213> Homo Sapiens <400> 6 gatgggcaaa ggagatccta ag 22 <210> 7 <211> 29 <212> DNA
<213> Homo Sapiens <400> 7 gcggccgctt attcatcatc atcatcttc 29 <210> 8 <211> 22 <212> DNA
<213> Homo Sapiens <400> 8 gatgggcaaa ggagatccta ag 22 <210>
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<213> Sapiens Homo <400>
gcggccgctcacttgcttttttcagccttg ac 32 <210>
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<213> sapiens Homo <400>
gagcataagaagaagcaccca ~ 21 <210>
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<213> Sapiens Homo <400>
gcggccgctcacttgcttttttcagccttg ac 32 <210>
<211>
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<213> sapiens Homo <400>
aagttcaaggatcccaatgcaaag 24 <210>
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<213> Sapiens Homo <400>
gcggccgctcaatatgcagctatatccttt tc 32 <210>
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<213> Sapiens Homo <400>
gatgggcaaaggagatcctaag 22 <210>
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<213> Sapiens Homo <400>
tCaCttttttgtCtCCCCtttggg 24 <210>
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<213> Sapiens Homo <400> 16 Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys <210> 17 <211> 54 <212> PRT
<213> Homo Sapiens <400> 17 Pro Asp Ser Ser Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Ser Lys Phe Glu Asp Met 20 , 25 30 Ala Lys Ser Asp Lys Ala Arg Tyr Asp Arg Glu Met Lys Asn Tyr Val Pro Pro Lys Gly Asp Lys <210> 18 <2115 216 <212> PRT
<213> Homo Sapiens <400> 18 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro 20 ~ 25 30 Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 19 <211> 182 <212> PRT
<213> Homo Sapiens <400> 19 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys,Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys G1y Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys <210> 20 <211> 74 <212> PRT
<213> Homo Sapiens <400> 20 Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 21 <211> 85 <212> PRT
<213> Homo Sapiens <400> 21 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala 50 55 ~ 60 Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 22 <211> 77 <212> PRT
<213> Homo Sapiens <400> 22 Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg 1 5 10 ~ 15 Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 23 <211> 20 <212> PRT
<213> Homo Sapiens <400> 23 Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu <210> 24 <211> 216 <212> PRT
<213> Homo Sapiens <400> 24 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu,Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 25 <211> 211 <212> PRT
<213> Homo Sapiens <400> 25 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Ser Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Asn Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Thr His Tyr Glu Arg Gln Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr His Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln'Pro Gly Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Gln Ala Lys Gly Lys Pro Glu Ala Ala Lys Lys Gly Val Val Lys Ala' Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Asp Asp Asp Glu <210> 26 <211> 188 <212> PRT
<213> Homo Sapiens <400> 26 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu Cys Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Ala Met Ser Ala Lys Asp Lys Gly Lys Phe Glu Asp Met Ala Lys Val Asp Lys Asp Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Glu Asp Ser Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Leu Leu Phe Cys Ser Glu Tyr Cys Pro Lys Ile Lys Gly Glu His Pro Gly Leu Pro Ile Ser Asp Val Ala Lys Lys Leu Val Glu Met Trp Asn Asn Thr Phe Ala Asp Asp Lys Gln Leu Cys Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Thr Ala Thr Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu <210> 27 <211> 205 <212> PRT
<213> Homo Sapiens <400> 27 Met Asp Lys Ala Asp Pro Lys Lys Leu Arg Gly Glu Met Leu Ser Tyr 1 5 l0 15 Ala Phe Phe Val Gln Thr Cys Gln Glu Glu His Lys Lys Lys Asn Pro Asp Ala Ser Val Lys Phe Ser Glu Phe Leu Lys Lys Cys Ser Glu Thr Trp Lys Thr Ile Phe Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Lys Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Leu Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Asp Asp Val Val Lys Lys Leu Ala Gly Met Trp Asn Asn Thr Ala Ala Ala Asp Lys Gln Phe Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asn Ser Ala Lys Lys Arg Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu 180, 185 190 Asp Glu Gln Glu Glu Glu Asn Glu Glu Asp Asp Asp Lys <210> 28 <211> 80 <212> PRT
<213> Homo Sapiens <400> 28 ' Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Cys Ala Phe Phe Val Gln Thr Cys Trp Glu Glu His Lys Lys Gln Tyr Pro Asp Ala Ser Ile Asn Phe Ser Glu Phe Ser Gln Lys Cys Pro Glu Thr Trp Lys Thr Thr Ile Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Pro Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro <210> 29 <211> 80 <212> PRT
<213> Homo Sapiens <400> 29 Lys Gln Arg Gly Lys Met Pro Ser Tyr Val Phe Cys Val Gln Thr Cys Pro Glu Glu Arg Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Leu Val Arg Gly Lys Thr Met Ser Ala Lys Glu Lys Gly Gln Phe Glu Ala Met Ala Arg Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys <210> 30 <211> 86 <212> PRT
<213> Homo Sapiens <400> 30 Met Gly Lys Arg Asp Pro Lys Gln Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Ala Gln Glu Glu His Lys Lys Lys Gln Leu Asp Ala Ser Val Ser Phe Ser Glu Phe Ser Lys Asn Cys Ser Glu Arg Trp Lys Thr Met Ser Val Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Cys Tyr Glu Arg Glu Met Lys Ile Tyr Pro Tyr Leu Lys Gly Arg Gln Lys <210> 31 <211> 70 <212> PRT
<213> Homo Sapiens <400> 31 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Glu Lys Met Pro Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Ala His Lys Asn Lys His Pro Asp Ala Ser Val Asn Ser Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Pro Thr Lys Gln Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Arg Ala His <210> 32 <211> 648 <212> DNA
box or fragments thereof. Also, transgenic mice, or other organisms such as other mammals, may be used to express humanized antibodies.
If the antibody is used therapeutically in ih vivo applications, the antibody is preferably modified to make it less immunogenic in the individual. For example, if the individual is human the antibody is preferably "humanized"; where the complementarity determining regions) of the antibody is transplanted into a human antibody (for example, as described in Jones et al. (Nature 321:522-525, 1986); and Tempest et al. (Biotechnology 9:266-273, 1991)).
Phage display technology can also be utilized to select antibody genes with binding activities towards the polypeptide either from repertoires of PCR
amplified v-genes of lymphocytes from humans screened for possessing anti-B box antibodies or from naive libraries (McCafferty et al., Nature 348:552-554, 1990; and Marks, et al., Biotechnology 10:779-783, 1992). The affinity of these antibodies can also be improved by chain shuffling (Clackson et al., Nature 352: 624-628, 1991).
When the antibodies are obtained that specifically bind to HMGB epitopes or to HMGB B box epitopes, they can then be screened, without undue experimentation, for the ability to inhibit release of a proinflammatory cytokine.
Anti-HMGB B box antibodies that can inhibit the production of any single proinflammatory cytolcine, and/or inhibit the release of a proinflammatory cytokine from a cell, and/or inhibit a condition characterized by activation of an inflammatory cytolcine cascade, are within the scope of the present invention. Preferably, the antibodies can inhibit the production of TNF, IL-1 (3, and/or IL-6. Most preferably, the antibodies can inhibit the production of any proinflammatory cytokines produced by the vertebrate cell.
For methods of inhibiting release of a proinflammatory cytolcine from a cell or treating a condition characterized by activation of an inflammatory cytokine cascade using antibodies to the HMGB B box or a biologically active fragment thereof, the cell can be any cell that can be induced to produce a proinflammatory cytolcine. In preferred embodiments, the cell is an immune cell, for example, macrophages, monocytes, or neutrophils.
Compositions Comprising One or More of an HMGB A box polypeptide, an Antibody to HMGB, an Aratibody to an HMGB B box, and an Inhibitor of .TNFBiological Activity In certain embodiments, the present invention is directed to a composition comprising any of the above-described polypeptides (e.g., an HMGB A box polypeptide or biologically active fragment as described herein) in a pharmaceutically acceptable carrier. Suitable pharmaceutically acceptable carriers include those described herein. In these embodiments, the composition can inhibit a condition characterized by activation of an inflammatory cytokine cascade. The condition can be one where the inflammatory cytokine cascade causes a systemic reaction, such as with endotoxic shocle. Alternatively, the condition can be mediated by a localized inflammatory cytokine cascade, as in rheumatoid arthritis:
Nonlimiting examples of conditions which can be usefully treated using the present invention include those conditions enumerated in the background section of this specification. In one embodiment, the condition to be treated is appendicitis, peptic, gastric or duodenal ulcers, peritonitis, pancreatitis, ulcerative, pseudomembranous, acute or ischemic colitis, hepatitis, Crohn's disease, asthma, allergy, anaphylactic shoclc, organ ischemia, reperfusion injury, organ necrosis, hay fever, sepsis, septicemia, endotoxic shock, cachexia, septic abortion, disseminated bacteremia, bums, Alzheimer's disease, coeliac disease, congestive heart failure, adult respiratory distress syndrome, cerebral infarction, cerebral embolism, spinal cord injury, paralysis, allograft rejection or graft-versus-host disease. In another embodiment, the condition is endotoxic shock or allograft rej ection. Where the condition is allograft rejection, the composition may advantageously also include an immunosuppressant that is used to inhibit allograft rejection, such as cyclosporin.
In other embodiments, the invention is directed to a composition comprising the antibody preparations described above (e.g., anti-HMGB B box antibodies or biologically active fragments thereof, as described herein), in a pharmaceutically acceptable caxrier. In these embodiments, the compositions can intubit a condition characterized by the activation of an inflammatory cytokine cascade.
Conditions that can be treated with these compositions have been previously enumerated.
In other embodiments, the invention is directed to a composition comprising any of the above-described HMGB A box polypeptides, and/or an antibody or antigen binding fragment thereof that binds HMGB, and/or an antibody or antigen binding fragment thereof that binds an HMGB B box, and an agent that inhibits TNF
biological activity (collectively termed "combination therapy compositions").
Preferred examples of agents that inhibit TNF biological activity include infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide. Such combination therapy compositions can further comprise a pharmaceutically acceptable carrier. Suitable pharmaceutically acceptable carriers include those .
described herein. In these embodiments, the combination therapy composition can inhibit a condition characterized by activation of an inflarmnatory cytokine cascade and/or inhibit release of a proinflammatoiy cytokine from a cell. The condition can be one where the inflammatory cytokine cascade causes a systemic reaction, such as with endotoxic shock. Alternatively, the condition can be mediated by a localized inflammatory cytokine cascade, as in rheumatoid arthritis. Nonlimiting examples of conditions which can be usefully treated using the present invention include those conditions enumerated in the background section of this specification. In one embodiment, the condition to be treated is sepsis, allograft rejection, rheumatoid arthritis, asthma, lupus, adult respiratory distress syndrome, chronic obstructive pulmonary disease, psoriasis, pancreatitis, peritonitis, burns, myocardial ischemia, organic ischemia, reperfusion ischemia, Behcet's disease, graft versus host disease, Crohn's disease, ulcerative colitis, multiple sclerosis, and cachexia.
Preferably the combination therapy compositions are administered to a patient in need thereof in an amount sufficient to inhibit release of proinflammatory cytolcine from a cell and/or to treat a condition characterized by activation of an inflammatory cytolcine cascade. In one embodiment, release of the proinflammatory cytokine is inhibited by at least 10%, 20%, 25%, 50%, 75%, 80%, 90% or 95%, as assessed using methods described herein or other methods lcnown in the art.
The carrier or excipient included with the polypeptide (e.g., an HMGB A box polypeptide or biologically active fragment thereof), antibody (e.g., an anti-HMGB B
box antibody or biologically active fragment thereof) or combination therapy composition (e.g., an HMGB A box polypeptide or biologically active fragment thereof and an agent that inhibits TNF biological activity, and/or an antibody or antigen binding fragment thereof that binds HMGB and an agent that inhibits TNF
biological activity, and/or an antibody or antigen binding fragment thereof that binds an HMGB B box and an agent that inhibits TNF biological activity) is chosen based on the expected route of administration of the composition in therapeutic applications. The route of administration of the composition depends on the condition to be treated. For example, intravenous injection may be preferred for treatment of a systemic disorder such as endotoxic shock, and oral administration may be preferred to treat a gastrointestinal disorder such as a gastric ulcer.
The route of administration and the dosage of the composition to be administered can.be determined by the skilled artisan, without undue experimentation, in conjunction with standard dose-response studies. Relevant circumstances to be considered in making such determinations include the condition or conditions to be treated, the choice of composition to be administered, the age, weight, and response of the individual patient, and the severity of the patient's symptoms. Thus, depending on the condition, the antibody composition can be administered orally, parenterally, intranasally, vaginally, rectally, lingually, sublingually, bucally, intrabuccaly and transdermally to the patient.
Accordingly, compositions designed for oral, lingual, sublingual, buccal and intrabuccal administration can be made without undue experimentation by means well known in the art, for example, with an inert diluent or with an edible carrier.
The compositions may be enclosed in gelatin capsules or compressed into tablets.
For the purpose of oral therapeutic administration, the pharmaceutical compositions of the present invention may be incorporated with excipients and used in the form of tablets, troches, capsules, elixirs, suspensions, syrups, wafers, chewing gums and the like.
Tablets, pills, capsules, troches and the like may also contain binders, recipients, disintegrating agent, lubricants, sweetening agents, and flavoring agents.
Some examples of binders include microcrystalline cellulose, gum tragacanth and gelatin. Examples of excipients include starch and lactose. Some examples of disintegrating agents include alginic acid, corn starch and the like. Examples of lubricants include magnesium stearate and potassium stearate. An example of a glidant is colloidal silicon dioxide. Some examples of sweetening agents include sucrose, saccharin and the like. Examples of flavoring agents include peppermint, methyl salicylate, orange flavoring and the like. Materials used in preparing these various compositions should be pharmaceutically pure and non-toxic in the amounts used.
The compositions of the present invention can easily be administered parenterally such as, for example, by intravenous, intramuscular, intrathecal or subcutaneous injection. Parenteral administration can be accomplished by incorporating the compositions of the present invention into a solution or suspension.
Such solutions or suspensions may also include sterile diluents such as water for injection, saline solution, fixed oils, polyethylene glycols, glycerine, propylene glycol andlor other synthetic solvents. Parenteral formulations may also include antibacterial agents such as, for example, benzyl alcohol and/or methyl parabens, antioxidants such as, for example, ascorbic acid and/or sodium bisulfate and chelating agents such as EDTA. Buffers, such as acetates, citrates and/or phosphates, and agents for the adjustment of tonicity, such as sodium chloride and/or dextrose, may also be added. The parenteral preparation can be enclosed in ampules, disposable syringes or multiple dose vials made of glass or plastic.
Rectal administration includes administering the pharmaceutical compositions into the rectum or large intestine. This can be accomplished using suppositories or enemas. Suppository formulations can easily be made by methods known in the art. For example, suppository formulations can be prepared by heating glycerin to about 120°C, dissolving the polypeptide composition, antibody composition and/or combination therapy composition in the glycerin, mixing the heated glycerin after which purified water may be added, and pouring the hot mixture into a suppository~mold.
Transdermal administration includes percutaneous absorption of the composition through the skin. Transdermal formulations include patches, ointments, creams, gels, salves and the like.
The present invention includes nasally administering to a mammal (e.g., a human) a therapeutically effective amount of the composition. As used herein, nasally administering or nasal administration includes administering the composition to the mucous membranes of the nasal passage or nasal cavity of the patient.
As used herein, pharmaceutical compositions for nasal administration of a composition include therapeutically effective amounts of the polypeptide, antibody and/or combination therapy agents, prepared by well-known methods to be administered, for example, as a nasal spray, nasal drop, suspension, gel, ointment, cream or powder.
Administration of the composition may also take place using a nasal tampon or nasal sponge.
The pharmaceutical compositions (e.g., polypeptide compositions, antibody compositions and/or combination therapy composition) described herein can also include an antagonist of an early sepsis mediator. As used herein, an early sepsis mediator is a proinflammatory cytokine that is released from cells soon (i.e., within 30-60 min.) after induction of an inflammatory cytokine cascade (e.g., exposure to LPS). Nonlimiting examples of these cytokines axe TNF, IL-1 a, IL-1 (3, IL-6, PAF, and MIF. Also included as early sepsis mediators are receptors for these cytokines (for example, tumor necrosis factor receptor type 1) and enzymes required for production of these cytokines, for example, interleukin-1 (3 converting enzyme).
Antagonists of any early sepsis mediator, now known or later discovered, can be useful for these embodiments by further inhibiting an inflammatory cytokine cascade.
Nonlimiting examples of antagonists of early sepsis mediators are antisense compounds that bind to the mRNA of the early sepsis mediator, preventing its expression (see, e.g., Ojwang et al. (Biochemistry 36:6033-6045, 1997);
Pampfer et al. (Biol. Reprod. 52:1316-1326, 1995); U.S. Patent No. 6,228,642; Yahata et al.
(Antisense Nucleic Acid Drug Dev. 6:55-61, 1996); and Taylor et al. (Antisense Nucleic Acid Drug Dev. 8:199-205, 1998)), ribozymes that specifically cleave the mRNA of the early sepsis mediator (see, e.g., Leavitt et al. (Antisense Nucleic Acid Drug Dev. 10: 409-414, 2000); Hendrix et al. (Biochem. J. 314 (Pt. 2): 655-661, 1996)), and antibodies that bind to the early sepsis mediator and inhibit their action (see, e.g., Kam and Targan (Expert Opin. Pharmacother. 1: 615-622, 2000);
Nagahira et al. (J. Immunol. Methods 222, 83-92, 1999); Lavine et al. (J. Cereb. Blood Flow Metab. 18: 52-58, 1998); and Holines et al. (Hybridoma 19: 363-367, 2000)).
Any antagonist of an early sepsis mediator, now known or later discovered, is envisioned as within the scope of the invention. The skilled artisan can determine the amount of early sepsis mediator to use in these compositions for inhibiting any particular inflammatory cytokine cascade without undue experimentation with routine dose-response studies.
Other agents that can be administered with the compositions described herein include, e.g., Vitaxin~" and other antibodies targeting a~~33 integrin (see, e.g., U.S.
Patent No. 5,753,230, PCT Publication Nos. WO 00/78815 and WO 02/070007; the entire teachings of all of which are incorporated herein by reference) and anti-IL-9 antibodies (see, e.g., PCT Publication No. WO 97/08321; the entire teachings of which are incorporated herein by reference). Additional agents that can be administered with the polypeptide compositions described herein include, e.g., antagonists (e.g., CTLA4Ig, anti-CD80 antibodies, anti-CD86 antibodies), methotrexate, and/or CD40 antagonists (e.g., anti-CD40 ligand (CD40L)) (see, e.g., Saito et al., J. Immunol. 160(9):4225-31 (1998)).
In further embodiments, the present invention is also directed to a method of inhibiting the release of a proinflammatory cytokine from a mammalian cell.
The method comprises treating the cell with any of the HMGB A box compositions, and/or any of the HMGB B box or HMGB B box biologically active fragment antibody compositions, and/or any of the combination therapy compositions discussed above. It is believed that this method would be useful for inhibiting the cytokine release from any mammalian cell that produces a proinflarnlnatory cytokine.
However, in preferred embodiments, the cell is a macrophage, because macrophage production of proinflammatory cytol~ines is associated with several important diseases.
It is believed that this method is useful for the inhibition of any proinflammatory cytokine produced by mammalian cells. In preferred embodiments, the proinflarnmatory cytokine is TNF, IL-1a, IL-1 Vii, MIF and/or IL-6, because those proinflammatory cytolcines are particularly important mediators of disease.
The methods of these embodiments are useful for isa vitro applications, such as in studies for determining biological characteristics of proinflammatory cytol~ine production in cells. However, the preferred embodiments are in vivo therapeutic applications, where the cells are in a patient suffering from, or at risk for, a condition characterized by activation of an inflammatory cytokine cascade.
In certain embodiments, the present invention is directed to a method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade. The method comprises administering to the patient any of the HMGB A box compositions (including non-naturally occurring A box polypeptides and A box biologically active fragments), any of the HMGB B box or B box biologically active fragment antibody compositions (including non-naturally occurnng B box polypeptides or biologically.active fragments thereof), and/or any of the combination therapy compositions discussed above. This method would be expected to be useful for any condition that is mediated by an inflammatory cytokine cascade, including any of those that have been previously enumerated. As with previously described ifZ vivo methods, preferred conditions include appendicitis, peptic, gastric or duodenal ulcers, peritonitis, pancreatitis, ulcerative, pseudomembranous, acute or ischemic colitis, hepatitis, Crohn's disease, asthma, allergy, anaphylactic shock, organ ischemia, reperfusion injury, organ necrosis, hay fever, sepsis, septicemia, endotoxic shock, cachexia, septic abortion, disseminated bacteremia, burns, Alzheimer's disease, cerebral infarction, cerebral embolism, spinal cord injury, paralysis, allograft rejection or graft-versus-host disease. In the most preferred embodiments, the condition is endotoxic shoclc or allograft rejection.
Where the condition is allograft rejection, the composition may advantageously also include an immunosuppressant that is used to inhibit allograft rejection, such as cyclosporin.
These methods can also usefully include the administration of an antagonist of an eaxly sepsis mediator, an anti-a~~i3 antibody, an anti IL-9 antibody, a antagonist (e.g., CTLA4Ig, an anti-CD80 antibody, an anti-CD86 antibody), methotrexate, and/or a CD40 antagonist (e.g., anti-CD40 ligand (CD40L)). The nature of these agents has been previously discussed.
The B box polypeptides and biologically active fragments thereof described herein can be used to induce inflammatory cytokines in the appropriate isolated cells in vitro, or ex vivo, or as a treatment ih vivo. In any of these treatments, the polypeptide or fragment can be administered by providing a DNA or RNA vector encoding the B box or B box fragment, with the appropriate control sequences operably linked to the encoded B box or B box fragment, so that the B box or B
box fragment is synthesized in the treated cell or patient. he vivo applications include the use of the B box polypeptides or B box fragment polypeptides or vectors as a weight loss treatment. See WO 00/47104 (the entire teachings of which are incorporated herein by reference), demonstrating that treatment with HMGB 1 induces weight loss.
In certain embodiments, the present invention is directed to methods of stimulating the release of a proinflammatory cytokine from a cell. The method comprises treating the cell with any of the B box polypeptides or biologically active B box fragment polypeptides, for example, polypeptides that comprise or consist of the sequence of SEQ ID NO:S, SEQ ID N0:20, SEQ ID NO:S~, SEQ ID N0:16, or SEQ ID N0:23, as described herein (including non-naturally occurring B box polypeptides and fragments). This method is useful for in vitro applications, for example, for studying the effect of proinflarmnatory cytokine production on the biology of the producing cell. Since the HMGB B box has the activity of the HMGB
protein, the B box would also be expected to induce weight loss. Therefore, in additional embodiments, the present invention is a method for effecting weight loss or treating obesity in a patient. The method comprises administering to the patient an effective amount of any of the B box polypeptides or B box fragment polypeptides described herein (including non-naturally occurring B box polypeptides and fragments). In another embodiment, the B box polypeptide or B box fragment polypeptide is in a pharmaceutically acceptable carrier.
Screening for Modulators of the Release of Proinflammatory Cytolcines from Cells The present invention is also directed to a method of determining whether a compound (test compound) inhibits inflammation and/or an inflammatory response.
The method comprises combining the compound with (a) a cell that releases a proinflammatory cytolcine when exposed to a vertebrate HMGB B box or a biologically active fragment thereof, and (b) the HMGB B box or a biologically active fragment thereof, and then determining whether the compound inhibits the release of the proinflammatory cytokine from the cell, as compared to a suitable control. A compound that inhibits the release of the proinflaxnmatory cytokine in this assay is a compound that can be used to treat inflammation and/or an inflammatory response. The HMGB B box or biologically active HMGB B box fragment can be endogenous to the cell or can be introduced into the cell using standard recombinant molecular biology techniques.
Any cell that releases a proinflammatory cytokine in response to exposure to a vertebrate HMGB B box or biologically active fragment thereof in the absence of a test compound would be expected to be useful for this invention. It is envisioned that the cell that is selected would be important in the etiology of the condition to be treated with the inhibitory compound that is being tested. For many conditions, it is expected that the preferred cell is a human macrophage.
Any method for determining whether the compound inhibits the release of the proinflammatory cytokine from the cell would be useful for these embodiments.
It is envisioned that the preferred methods are the direct measurement of the proinflarmnatory cytolcine, for example, with any of a number of cormnercially available ELISA assays. However, in some embodiments, the measurement of the inflammatory effect of released cytokines may be preferable, particularly when there are several proinflammatory cytokines produced by the test cell. As previously discussed, for many important disorders, the predominant proinflammatory cytokines axe TNF, IL-la, IL-lei, MIF or IL-6; particularly TNF.
The present invention also features a method of determining whether a compound increases an inflammatory response and/or inflammation. The method comprises combining the compound (test compound) with (a) a cell that releases a proinflammatory cytokine when exposed to a vertebrate HMGB A box or a biologically active fragment thereof, and (b) the HMGB A box or biologically active fragment, and then determining whether the compound increases the release of the proinflammatory cytolcine from the cell, as compared to a suitable control. A
compound that increases the release of the proinflammatory cytokine in this assay is a compound that can be used to increase an inflammatory response and/or inflammation. The HMGB A box or HMGB A box biologically active fragment can be endogenous to the cell or can be introduced into the cell using standard recombinant molecular biology techniques.
Similar to the cell types useful for identifying inhibitors of inflammation described above, any cell in which release of a proinflammatory cytokine is normally inhibited in response to exposure to a vertebrate HMGB A box or a biologically active fragment thereof in the absence of any test compound would be expected to be useful for this invention. It is envisioned that the cell that is selected would be important in the etiology of the condition to be treated with the inhibitory compound that is being tested. For many conditions, it is expected that the preferred cell is a human macrophage.
Any method for determining whether the compound increases the release of the proinflammatory cytokine from the cell would be useful for these embodiments.
It is envisioned that the preferred methods are the direct measurement of the proinflammatory cytokine, for example, with any of a number of commercially available ELISA assays. However, in some embodiments, the measurement of the inflammatory effect of released cytokines may be preferable, particularly when there are several proinflammatory cytokines produced by the test cell. As previously discussed, for many important disorders, the predominant proinflammatory cytokines are TNF, IL-la, IL-lei, MIF or IL-6; particularly TNF.
Preferred embodiments of the invention are described in the following examples. Other embodiments within the scope of the invention will be apparent to one skilled in the art from consideration of the specification or practice of the invention as disclosed herein. It is intended that the specification, together with the examples and claims, be considered exemplary only.
Example 1: Materials and Methods Cloning of HMGBI and Pf~oduction of HMGBl Mutants The following methods were used to prepare clones and mutants of human HMGB 1. Recombinant full length human HMGB 1 (651 base pairs; GenBank Accession Number U51677) was cloned by PCR amplification from a human brain Quick-Clone cDNA preparation (Clontech, Palo Alto, CA) using the following primers; forward primer: 5' GATGGGCAAAGGAGATCCTAAG 3' (SEQ ID N0:6) and reverse primer: 5' GCGGCCGCTTATTCATCATCATCATCTTC 3' (SEQ ID
N0:7). Human HMGB 1 mutants were cloned and purified as follows. A truncated form of human HMGB 1 was cloned by PCR amplification from a Human Brain Quick-Clone cDNA preparation (Clontech, Palo Alto, CA). The primers used were (forward and reverse, respectively):
Carboxy terminus mutant (557 bp): 5' GATGGGCAAAGGAGATCCTAAG 3' (SEQ
ID N0:8) and 5' GCGGCCGC TCACTTGGTTTTTTCAGCCTTGAC 3' (SEQ ID
N0:9).
Amino terminus+B box mutant (486 bp): 5' GAGCATAAGAAGAAGCACCCA 3' (SEQ ID NO:10) and 5' GCGGCCGC TCACTTGCTTTTTTCAGCCTTGAC 3' (SEQ ID NO:l 1).
B box mutant (233 bp): 5' AAGTTCAAGGATCCCAATGCAAAG 3' (SEQ ID
N0:12) and 5' GCGGCCGCTCAATATGCAGCTATATCCTTTTC 3' (SEQ ID
N0:13).
Amino terminus+A box mutant (261 bp): 5' GATGGGCAAAGGAGATCCTAAG 3' (SEQ ID NO: 14) and 5' TCACTTTTTTGTCTCCCCTTTGGG 3' (SEQ ID NO:15).
A stop codon was added to each mutant to ensure the accuracy of protein size.
PCR products were subcloned into pCRII-TOPO vector EcoRI sites using the TA
cloning method per manufacturer's instruction (Invitrogen, Carlsbad, CA).
After amplification, the PCR product was digested with EcoRI and subcloned into an expression vector with a GST tag pGEX (Pharmacia); correct orientation and positive clones were confirmed by DNA sequencing on both strands. The recombinant plasmids were transformed into protease deficient E coli strains or BL21(DE3)plysS (Novagen, Madison, WI) and fusion protein expression was induced by isopropyl-D-thiogalactopyranoside (IPTG). Recombinant proteins were obtained using affinity purification with the glutathione Sepharose resin column (Pharmacia).
The HMGB mutants generated as described above have the following amino acid sequences:
Wild type HMGB 1:
MGKGDPKKPTGKMSSYAFFVQTCREEHKKKHPDASVNFSEFSKKCSERWKT
MSAKEKGKFEDMAKADKARYEREMKTYIPPKGETKKKFKDPNAPKRLP SAF
FLFCSEYRPKIKGEHPGLSIGDVAKKLGEMWNNTAADDKQPYEKKAAKLKE
KYEKDIAAYRAKGKPDAAKKGVVKAEKSKKKKEEEEDEEDEEDEEEEEDEE
DEEDEEEDDDDE (SEQ ID N0:18) Carboxy terminus mutant:
MSAKEKGKFEDMAKADKARYEREMKTYIPPKGETKKKFKDPNAPKRLP SAF
FLFCSEYRPKIKGEHPGLSIGDVAKKLGEMWNNTAADDKQPYEKKAAKLKE
KYEKDIAAYRAKGKPDAAKKGVVKAEKSK (SEQ ID NO: 19) B Box mutant: FKDPNAPKRLPSAFFLFCSEYRPKIKGEHPGLSIGDVAKKLGEM
WNNTAADDKQPYEKKAAKLKEKYEKDIAAY (SEQ ID NO: 20) Amino terminus + A Box mutant: MGKGDPKKPTGKMSSYAFFVQTCREEHKKK
HPDASVNFSEFSKKCSERWKTMSAKEKGKFEDMAKADKARYEREMKTYIPP
KGET (SEQ ID NO: 21), wherein the A box consists of the sequence PTGKMSSYAFFVQTCREEHKKKHPDASVNFSEFSKKCSERWKTMSAKEKGK
FEDMAKADKARYEREMKTYIPPKGET (SEQ ID N0:22) A polypeptide generated from a GST vector lacking HMGB 1 protein was included as a control (containing a GST tag only). To inactive the bacterial DNA
that bound to the wild type HMGB 1 and some of the mutants (carboxy terminus and B box), DNase I (Life Technologies), for carboxy terminus and B box mutants, or benzonase nuclease (Novagen, Madison, WI), for wild type HMGB1, was added at about 20 units/ml bacteria lysate. Degradation of DNA was verified by ethidium bromide staining of the agarose gel containing HMGB 1 proteins before and after the treatment. The protein eluates were passed over a polymyxin B cohunn (Pierce, Rockford, IL) to remove any contaminating LPS, and dialyzed extensively against phosphate buffered saline to remove excess reduced glutathione. The preparations were then lyophilized and redissolved in sterile water before use. LPS levels were less than 60 pg/~g protein for all of the mutants and 300 pg/~g for wild type HMG-1, as measured by Limulus amebocyte lysate assay (Bio Whittaker Inc., Walkersville, MD). The integrity of protein was verified by SDS-PAGE. Recombinant rat HMGB 1 (Wang et al., Science 285: 248-251, 1999) was used in some experiments since it does not have degraded fragments as observed in purified human HMGB1.
Peptide Synthesis Peptides were synthesized and HPLC purified at Utah State University Biotechnology Center (Logan, Utah) at 90% purity. Endotoxin was not detectable in the synthetic peptide preparations as measured by Limulus assay.
Cell Culture Murine macrophage-like RAW 264.7 cells (American Type Culture Collection, Roclcville, MD) were cultured in RPMI 1640 medium (Life Technologies, Grand Island NY) supplemented with 10% fetal bovine serum (Gemini, Catabasas, CA), penicillin and streptomycin (Life Technologies) and were used at 90% confluence in serum-free Opti-MEM I medium (Life Technologies, Grand Island, NY). Polymyxin B (Sigma, St. Louis, MO) was routinely added at 100-1,000 units/ml to neutralize the activity of any contaminating LPS as previously described; polymyxin B alone did not influence cell viability assessed with trypan blue (Wang et al., supra). Polymyxin B was not used in experiments of synthetic peptide studies.
Measuf°ement of TNF Release From Cells TNF release was measured by a standard murine fibroblast L929 (ATCC, American Type Culture Collection, Rockville, MD) cytotoxicity bioassay (Bianchi et al., Journal of Experimental Medicine 183:927-936, 1996) with the minimum detectable concentration of 30 pg/ml. Recombinant mouse TNF was obtained from R&D system Inc., (Minneapolis, MN). Murine fibroblast L929 cells (ATCC) were cultured in DMEM (Life Technologies, Grand Island, NY) supplemented with 10%
fetal bovine serum (Gemini, Catabasas, CA), penicillin (50 units/ml) and streptomycin (50 ~g/ml) (Life Technologies) in a humidified incubator with 5%
COz.
Antibody Pr~oductio~c Polyclonal antibodies against HMGB 1 B box were raised in rabbits (Cocalico Biologicals, Inc., Reamstown, PA) and assayed for titer by immunoblotting. IgG
was purified from anti-HMGB 1 antiserum using Protein A agarose according to manufacturer's instructions (Pierce, Rockford, IL). Anti-HMGB 1 B box antibodies were affinity purified using cyanogen bromide activated Sepharose beads (Cocalico Biological, Inc.). Non-immune rabbit IgG was purchased from Sigma (St. Louis, MO). Antibodies detected full length HMGB 1 and B box in immunoassay, but did not cross react with TNF, IL-1 and IL-6.
Labeling of HMGBI with Na-'ZSI and cell surface binding Purified HMGB1 protein (10 ~,g) was radiolabeled with 0.2 mCi of carrier-free lzsl (NEN Life Science Products Inc., Boston, MA) using Iodo-beads (Pierce, Roclcford, IL) according to the manufacturer's instructions. 'zsI_HMGB 1 protein was separated from un-reacted'zsI by gel chromatography columns (P6 Micro Bio-Spin Chromatography Columns, Bio-Rad Laboratories, Hercules, CA) previously equilibrated with 300 mM sodium chloride, 17.5 mM sodium citrate, pH 7.0, and 0.1 % bovine serum albumin (B SA). The specific activity of the eluted HMGB 1 was about 2.8 x 106 cpm/~g protein. Cell surface binding studies were perfouned as previously described (Yang et al., Am. J. Physiol. 275:C675-C683, 1998). RAW
264.7 cells were plated on 24-well dishes and grown to confluence. Cells were washed twice with ice-cold PBS containing 0.1% BSA and binding was carried out at 4°C for 2 hours with 0.5 ml binding buffer containing 120 mM sodium chloride, 1.2 mM magnesium sulfate, 15 mM sodium acetate, 5 mM potassium chloride, 10 mM
Tris.HCl, pH 7.4, 0.2% BSA, SmM glucose and 25,000 cpm'z5I-HMGB1. At the end of the incubation the supernatants were discarded and the cells were washed three times with 0.5 ml of ice-cold PBS with 0.1% BSA and lysed with 0.5 ml of 0.5 N NaOH and 0.1 % SDS for 20 minutes at room temperature. The radioactivity in the lysate was then measured using a gamma counter. Specific binding was determined as total binding minus the radioactivity obtained in the presence of an excess amount of unlabeled HMGB 1 or A box proteins.
Animal Expe~imev~ts TNF knock out mice were obtained from Amgen (Thousand Oaks, CA) and were on a B6x129 background. Age-matched wild-type B6x129 mice were used as a control for the studies. Mice were bred in-house at the University of Florida specific pathogen-free transgenic mouse facility (Gainesville, FL) and were used at 6-8 weeks of age.
Male 6-8 week old Balb/c and C3H/HeJ mice were purchased from Harlen Sprague-Dawley (Indianapolis, IN) and were allowed to acclimate for 7 days before use in experiments. All animals were housed in the North Shore University Hospital Animal Facility under standard temperature, and a light and dark cycle.
Cecal Ligation a~cd Puncture Cecal ligation and puncture (CLP) was performed as described previously (Fink and Heard, J. Surg. Res. 49:186-196, 1990; Wichmann et al., Crit. Care Med.
26:2078-2086, 1998; and Remiclc et al., Shock 4:89-95, 1995). Briefly, Balb/c mice were anesthetized with 75 mg/kg ketamine (Fort Dodge, Fort Dodge, Iowa) and 20 mg/kg of xylazine (Bohringer Ingelheim, St. Joseph, MO) intramuscularly. A
midline incision was performed, and the cecum was isolated. A 6-0 prolene suture ligature was placed at a level 5.0 mm from the cecal tip away from the ileocecal valve.
The ligated cecal stump was then punctured once with a 22-gauge needle, without direct extrusion of stool. The cecum was then placed baclc into its normal intra-abdominal position. The abdomen was then closed with a running suture of prolene in two layers, peritoneum and fascia separately to prevent leakage of fluid.
All animals were resuscitated with a normal saline solution administered sub-cutaneously at 20 ml/kg of body weight. Each mouse received a subcutaneous injection of imipenem (0.5 mg/mouse) (Primaxin, Merck & Co., Inc., West Point, PA) 30 minutes after the surgery. Animals were then allowed to recuperate.
Mortality was recorded for up to 1 week after the procedure; survivors were followed for 2 weeks to ensure no late mortalities had occurred.
D-galactosamine Sev~sitized Mice The D-galactosamine-sensitized model has been described previously (Galanos et al., Proc Natl. Acad. Sci. USA 76: 5939-5943, 1979; and Lehmann et al., J. Exp. Med. 165: 657-663, 1997). Mice were injected intraperitoneally with 20 mg D-galactosamine-HCL (Sigma)/mouse (in 200.x,1 PBS) and 0.1 or 1 mg of either HMBG1 B box or vector protein (in 200 ~,1 PBS). Mortality was recorded daily for up to 72 hours after injection; survivors were followed for 2 weeks, and no later deaths from B box toxicity were observed.
Spleen bacteria culture Fourteen mice received either anti-HMGB 1 antibody (n=7) or control (n=7) at 24 and 30 hours after CLP, as described herein, and were euthanized for necropsy.
Spleen bacteria were recovered as described previously (Villa et al., J.
Endotoxin Res. 4:197-204, 1997). Spleens were removed using sterile technique and homogenized in 2 ml of PBS. After serial dilutions with PBS, the homogenate was plated as 0.15 ml aliquots on tryptic soy agar plates (Difco, Detroit, MI) and CFU
were counted after overnight incubation at 37°C.
Statistical Av~alysis Data axe presented as mean ~ SEM unless otherwise stated. Differences between groups were determined by two-tailed Student's t-test, one-way ANOVA
followed by the least significant difference test or 2 tailed Fisher's Exact Test.
Example 2: Mapping the HMGB 1 Domains for Promotion of Cytokine Activity HMGB 1 has 2 folded DNA binding domains (A and B boxes) and a negatively-charged acidic caxboxyl tail. To elucidate the structural basis of cytokine activity, and to map the inflammatory protein domain, we expressed full length and truncated forms of HMGB 1 by mutagenesis and screened the purified proteins for stimulating activity in monocyte cultures (FIG. 1). Full length HMGB1, a mutant in which the carboxy terminus was deleted, a mutant containing only the B
box, and a mutant containing only the A box were generated. These mutants of human HMGB 1 were made by polymerase chain reaction (PCR) using specific primers as described herein, and the mutant proteins were expressed using a glutathione S-transferase (GST) gene fusion system (Pharmacia Biotech, Piscataway, N~ in accordance with the manufacturer's instructions. Briefly, DNA fragments, made by PCR methods, were fused to GST fusion vectors and amplified in E.
coli.
The expressed HMGB 1 protein and HMGB 1 mutants were then isolated using a GST
affinity column.
The effect of the mutants on TNF release from Murine macrophage-like RAW 264.7 cells (ATCC) was carried out as follows. R.AW 264.7 cells were cultured in RPMI 1640 medium (Life Technologies, Grand Island NY) supplemented with 10% fetal bovine serum (Gemini, Catabasas, CA), penicillin and streptomycin (Life Technologies). Polymyxin (Sigma, St. Louis, MO) was added at 100 units/ml to suppress the activity of any contaminating LPS. Cells were incubated with 1 ~,g/ml of full length (wild-type) HMGB 1 and each HMGB 1 mutant protein in Opti-MEM I medium for 8 hours. Conditioned supernatants (containing TNF which had been released from the cells) were collected and TNF released from the cells was measured by a standard marine fibroblast L929 (ATCC) cytotoxicity bioassay (Bianchi et al., supra) with the minimum detectable concentration of 30 pg/ml.
Recombinant mouse TNF was obtained from R & D Systems Inc., (Minneapolis, MN) and used as control in these experiments. The results of this study are shown in FIG. 1. Data in FIG. 1 are all presented as mean + SEM unless otherwise indicated.
(N=6-10).
As shown in FIG. 1, wild-type HMGB 1 and carboxyl-truncated HMGB 1 significantly stimulated TNF release by monocyte cultures (marine macrophage-like RAW 264.7 cells). The B box was a potent activator of monocyte TNF release.
This stimulating effect of the B box was specific, because A box only weakly activated TNF release.
Example 3: HMGB 1 B Box Protein Promotes Cytokine Activity in a Dose Dependent Manner To further examine the effect of HMGB 1 B box on cytokine production, varying amounts of HMGB1 B box were evaluated for the effects on TNF, IL-1B, and IL-6 production in marine macrophage-like RAW 264.7 cells. RAW 264.7 cells were stimulated with B box protein at 0-10 ~.ghnl, as indicated in FIGS. 2A-2C
for 8 hours. Conditioned media were harvested and measured for TNF, IL-1~3 and IL-6 levels. TNF levels were measured as described herein, and IL-lei and IL-6 levels were measured using the mouse IL-lei and IL-6 enzyme-linleed immunosorbent assay (ELISA) kits (R&D System Inc., Minneapolis, MN) and N>5 for all experiments.
The results of the studies are shown in FIGS. 2A-2C.
As shown in FIG. 2A, TNF release from RAW 264.7 cells increased with increased amounts of B box administered to the cells. As shown in FIG. 2B, addition of 1 wg/ml or 10 ~,g/ml of B box resulted in increased release of IL-1 ~3 from RAW
264.7 cells. In addition, as shown in FIG. 2C, IL-6 release from RAW 264.7 cells increased with increased amounts of B box administered to the cells.
The kinetics of B box-induced TNF release were also examined. TNF release and TNF mRNA expression were measured in RAW 264.7 cells induced by B box polypeptide or GST tag polypeptide only used as a control (vector) (10 ~.g/ml) for 0 to 48 hours. Supernatants were analyzed for TNF protein levels by an L929 cytotoxicity assay (N=3-5) as described herein. For mRNA measurement, cells were plated in 100 mm plates and treated in Opti-MEM I medium containing B box polypeptide or the vector alone for 0, 4, 8, or 24 hours, as indicated in FIG.
2D. The vector only sample was assayed at the 4 hour time point. Cells were scraped off the plate and total RNA was isolated using the RNAzoI B method in accordance with the manufacturer's instructions (Tel-Test "B", Inc., Friendswood, TX). TNF (287 bp) was measured by RNase protection assay (Ambion, Austin, TX). Equal loading and the integrity of RNA was verified by ethidium bromide staining of the RNA
sample on an agarose-formaldehyde gel. The results of the RNase protection assay are shown in FIG. 2D. As shown in FIG. 2D, B box activation of monocytes occurred at the level of gene transcription, because TNF mRNA was increased significantly in monocytes exposed to B box protein (FIG. 2B). TNF mRNA expression was maximal at 4 hours and decreased at 8 and 24 hours. The vector only control (GST
tag) showed no effect on TNF mRNA expression. A similar study was carried out measuring TNF protein released from RAW 264.7 cells 0, 4, 8, 24, 32 or 48 hours after administration of B box or vector only (GST tag), using the L929 cytotoxicity assay described herein. Compared to the control (medium only), B box treatment stimulated TNF protein expression (FIG. 2E) and vector alone (FIG. 2F) did not.
Data are representative of three separate experiments. Together these data indicate that the HMGB 1 B box domain has cytolcine activity and is responsible for the cytolcine stimulating activity of full length HMGB 1.
In summary, the HMGB 1 B box dose-dependently stimulated release of TNF, IL-1(3 and IL-6 from monocyte cultures (FIGS. 2A-2C), in agreement with the inflammatory activity of full length HMGB 1 (Andersson et al., J. Exp. Med.
192:
565-570, 2000). In addition, these studies indicate that maximum TNF protein release occurred within 8 hours (FIG. 2E). This delayed pattern of TNF release is -SS-similar to TNF release induced by HMGB 1 itself, and is significantly later than the kinetics of TNF induced by LPS (Andersson et al., supra).
Example 4: The First 20 Amino Acids of the HMGB 1 B Box Stimulate TNF Activity The TNF-stimulating activity of the HMGB 1 B box was further mapped.
This study was carried out as follows. Fragments of the B box were generated using synthetic peptide protection techniques, as described herein. Five HMGB 1 B
box fragments (from SEQ ID N0:20), containing amino acids 1-20, 16-25, 30-49, 45-64, or 60-74 of the HMGB 1 B box were generated, as indicated in FIG. 3. R.AW
264.7 cells were treated with B box (1 ~.g/ml) or a synthetic peptide fragment of the B box (10 ~,g/ml), as indicated in FIG. 3, for 10 hours and TNF release in the supernatants was measured as described herein. Data shown are mean ~ SEM, (n=3 experiments, each done in duplicate and validated using 3 separate lots of synthetic peptides). As shown in FIG. 3, TNF-stimulating activity was retained by a synthetic peptide corresponding to amino acids 1-20 of the HMGB1 B box of SEQ ID N0:20 (fkdpnaplcrlpsafflfcse; SEQ ID N0:23). The TNF stimulating activity of the 1-mer was less potent than either the full length synthetic B box (1-74-mer), or full length HMGB 1, but the stimulatory effects were specific because the synthetic mers for amino acid fragments containing 16-25, 30-49, 45-64, or 60-74 of the HMGB 1 B box did not induce TNF release. These results are direct evidence that the macrophage stimulating activity of the B box specifically maps to the first 20 amino acids of the HMGB B box domain of SEQ ID N0:20). This B box fragment can be used in the same manner as a polypeptide encoding a full length B box polypeptide, for example, to stimulate release of a proinflammatory cytokine, or to treat a condition in a patient characterized by activation of an inflammatory cytokine cascade.
Example 5: HMGB 1 A Box Protein Antagonizes HMGB 1 Induced Cytokine Activity in a Dose Dependent Manner Weale agonists are by definition antagonists. Since the HMGB 1 A box only weakly induced TNF production, as shown in FIG. 1, the ability of HMGB 1 A box to act as an antagonist of HMGB 1 activity was evaluated. This study was carried out as follows. Sub-confluent RAW 264.7 cells in 24-well dishes were treated with HMGB 1 (1 wg/ml) and 0, 5, 10, or 25 ~,g/ml of A box for 16 hours in Opti-MEM
I
medium in the presence of polymyxin B (100 units/ml). The TNF-stimulating activity (assayed using the L929 cytotoxicity assay described herein) in the sample receiving no A box was expressed as 100%, and the inhibition by A box was expressed as percent of HMGB 1 alone. The results of the effect of A box on TNF
release from RAW 264.7 cells is shown in FIG. 4A. As shown in FIG. 4A, the A
box dose-dependently inhibited HMGB 1 induced TNF release with an apparent ECSo of approximately 7.5 wg/ml. Data in FIG. 4A are presented as mean ~ SD (n= 2-3 independent experiments).
Example 6: HMGB 1 A Box Protein Inhibits Full Length HMGB 1 and HMGB 1 B
Box Cytolcine Activity Antagonism of full length HMGB 1 activity by HMGB 1 A box or GST tag (vector control) was also determined by measuring TNF release from RAW 264.7 macrophage cultures stimulated by co-addition of A box with full length HMGB
1.
RAW 264.7 macrophage cells (ATCC) were seeded into 24-well tissue culture plates and used at 90% confluence. The cells were treated with HMGB1, and/or A boxes as indicated for 16 hours in Optimum I medium (Life Technologies, Grand Island, NY) in the presence of polymyxin B (100 units/ml, Sigma, St. Louis, MO) and supenlatants were collected for TNF measurement (mouse ELISA kit from R&D
System Inc, Minneapolis, MN). TNF-inducing activity was expressed as a percentage of the activity achieved with HMGB 1 alone. The results of these studies are shown in FIG. 4B. FIG. 4B is a histogram of the effect of HMGB1 (HMG-1), alone, A
box alone, Vector (control) alone, HMGB 1 in combination with A box, and HMGB 1 in combination with vector. As shown in FTG. 4B, HMGB 1 A box significantly attenuated the TNF stimulating activity of full length HMGB 1.
Example 7: HMGB1 A Box Protein Inhibits HMGB1 Cytokine Activity by Binding to It To determine whether the HMGB 1 A box acts as an antagonist by displacing HMGB 1 binding, 'z5I-labeled-HMGB 1 was added to macrophage cultures and binding was measured at 4°C after 2 hours. Binding assays in R.AW 264.7 cells were performed as described herein. lzSl-HMGB 1 binding was measuxed in RAW 264.7 cells plated in 24-well dishes for the times indicated in FIG. SA. Specific binding shown equals total cell-associated lzsl-HMGB 1 (CPM/well) minus cell associated CPMlwell in the presence of 5,000 fold molar excess of unlabeled HMGB 1. FIG.
SA is a graph of the binding of lzsl_HMGB 1 over time. As shown in FIG. SA, HMGB 1 exhibited saturable first order binding kinetics. The specificity of binding was assessed as described in Example 1.
In addition, lzsl-HMG-1 binding was measured in RAW 264.7 cells plated on 24-well dishes and incubated with lzsl HMGB 1 alone or in the presence of unlabeled HMGB 1 or A box. The results of this binding assay are shown in FIG. 5B. Data represents mean ~ SEM from 3 sepaxate experiments. FIG. SB is a histogram of the cell surface binding of lzSl-HMGB 1 in the absence of unlabeled HMGB 1 or HMGB
A box, or in the presence of 5,000 molar excess of unlabeled HMGB 1 or HMGB 1 A
box, measured as a percent of the total CPM/well. In FIG. SB, "Total" equals counts per minutes (CPM)lwell of cell associated'z5I-HMGB1 in the absence of unlabeled HMGB 1 or A box for 2 hours at 4°C. "HMGB 1" or "A box" equals CPMlwell of cell-associated izsl_HMGB 1 in the presence of 5,000 molar excess of unlabeled HMGB 1 or unlabeled A box. The data are expressed as the percent of total counts obtained in the absence of unlabeled HMGBl proteins (2,382,179 CPM/well).
These results indicate that the HMGB 1 A box is a competitive antagonist of HMGB 1 activity ih vity~o and inhibits the TNF-stimulating activity of HMGB 1.
Example 8: Inhibition of Full Length HMGB l and HMGB 1 B Box Cytokine Activity by Anti-B Box Polyclonal Antibodies.
The ability of antibodies directed against the HMGB 1 B box to modulated the effect of full length or HMGB 1 B box was also assessed. Affinity purified antibodies directed against the HMGB 1 B box (B box antibodies) were generated as described herein and using standard techniques. To assay the effect of the antibodies on HMGB 1-induced or HMGB 1 B box-induced TNF release from RAW 264.7 cells, sub-confluent RAW 264.7 cells in 24-well dishes were treated with HMG-1 (1 ~g/ml) or HMGB1 B box (10 ~g/ml) for 10 hours with or without anti-B box antibody (25 ~.g/ml or 100 ~.g/ml antigen affinity purified, Cocalico Biologicals, Inc., Reamstovnz, PA) or non-immune IgG (25 ~,glml or 100 ~,g/ml; Sigma) added. TNF
release from the RAW 264.7 cells was measured using the L929 cytotoxicity assay as described herein. The results of this study are shown in FIG. 6, which is a histogram of TNF released by RAW 264.7 cells administered nothing, 1 ~,g/ml of HMGB1, 1 ~,g/ml of HMGB 1 plus 25 ~,g/ml of anti-B box antibody, 1 ~,g/ml of HMGB 1 plus 25 ~g/ml of IgG (control), 10 ~,glml of B-box, 10 ~,g/ml of B-box plus 100 ~,g/ml of anti-B box antibody or 10 ~,g/ml of B-box plus 100 ~.g/ml of IgG (control).
The amount of TNF released from the cells induced by HMGB 1 alone (without addition of B box antibodies) was set as 100%, and the data shown in FIG. 6 are the results of 3 independent experiments. As shown in FIG. 6, affinity purified antibodies directed against the HMGB 1 B box significantly inhibited TNF release induced by either full length HMGB 1 or the HMGB 1 B box. These results indicate that such an antibody can be used to modulate HMGB 1 function.
Example 9: HMGB 1 B Box Protein is Toxic to D-galactosamine-sensitized Balb/c Mice To investigate whether the HMGB 1 B box has cytolcine activity in vivo, we administered HMGB 1 B box protein to unanesthetized Balb/c mice sensitized with D-galactosamine (D-gal), a model that is widely used to study cytokine toxicity (Galanos et al., supra). Briefly, mice (20-25 grams, male, Harlan Sprague-Dawley, Indianapolis, IN) were intraperitoneally injected with D-gal (20 mg) (Sigma, St.
Louis, Missouri) and B box (0.1 mg/ml/mouse or 1 mg/ml/mouse) or GST tag (vector; 0.1 mg/ml/mouse or 1 mg/ml/mouse), as indicated in Table 1. Survival of the mice was monitored up to 7 days to ensure no late death occurred. The results of this study are shown in Table 1.
Table 1: Toxicity of HMGB 1 B box on D-galactosamine-sensitized Balb/c Mice Treatment Alive/total Control - 10/ 10 Vector 0.1 mg/mouse 2/2 1 mg/mouse 3/3 B box 0.1 mg/mouse 6/6 1 mg/mouse 2/8 *P<0.01 versus vector alone as tested by Fisher's Exact Test The results of this study showed that the HMGB 1 B box was lethal to D-galactosamine-sensitized mice in a dose-dependent mamier. In all instances in which death occurred, it occurred within 12 hours. Lethality was not observed in mice treated with comparable preparations of the purified GST vector protein devoid of B
box.
Example 10: Histology of D-galactosainine-sensitized Balb/c Mice or C3H/HeJ
Mice Administered HMGB 1 B Box Protein To further assess the lethality of the HMGB 1 B box protein in vivo the HMGB1 B box was again administered to D-galactosamine-sensitized Balb/c mice.
Mice (3 per group) received D-gal (20 mg/mouse) plus B box or vector (1 mg/mouse) intraperitorieally for 7 hours and were then sacrificed by decapitation.
Blood was collected, and organs (liver, heart, kidney and lung) were harvested and fixed in 10% formaldehyde. Tissue sections were prepared with hematoxylin and eosin staining for histological evaluation (Criterion Inc., Vancouver, Canada). The results of these studies axe shown in FIGS. 7A-7J, which are scanned images of hematoxylin and eosin stained kidney sections (FIG. 7A), myocardium sections (FIG.
7C), lung sections (FIG. 7E), and liver sections (FIGS. 7G and 7I) obtained from an untreated mouse and kidney sections (FIG. 7B), myocardium sections (FIG. 7D), lung sections (FIG. 7F), and liver sections (FIGS. 7H and 7J) obtained from mice treated with the HMGB 1 B box. Compared to the control mice, B box treatment caused no abnormality in kidneys (FIGS. 7A and 7B) and lungs (FIGS. 7E and 7F).
The mice had some ischemic changes and loss of cross striation in myocardial fibers "' in the heart (FIGS. 7C and 7D as indicated by the arrow in FIG. 7D). Liver showed most of the damage by the B box as illustrated by active hepatitis (FIGS. 7G-7J). In FIG. 7J, hepatocyte dropouts are seen surrounded by accumulated polymorphonuclear leukocytes. The arrows in FIG. 7J point to the sites of polymorphonuclear accumulation (dotted) or apoptotic hepatocytes (solid).
Administration of HMGB 1 B box in vivo also stimulated significantly increased serum levels of IL-6 (315+93 vs.20+7 pg/ml, B box vs. control, p<0.05) and IL-1~3 (15+3 vs. 4+1 pg/ml, B box vs. control, p<0.05).
Administration of B box protein to C3H/HeJ mice (which do not respond to endotoxin) was also lethal, indicating that HMGB 1 B box is lethal in the absence of LPS signal transduction. Hematoxylin and eosin stained sections of lung and kidney collected 8 hours after achninistration of B box revealed no abnormal morphologic changes. Examination of sections from the heart however, revealed evidence of ischemia with loss of cross striation associated with amorphous pink cytoplasm in myocardial fibers. Sections from liver showed mild acute inflammatory responses, with some hepatocyte dropout and apoptosis, and occasional polymorphonuclear leukocytes. These specific pathological changes were comparable to those observed after administration of full length HMGB 1 and confirm that the B box alone can recapitulate the lethal pathological response to HMGB 1 ivc vivo.
To address whether the TNF-stimulating activity of HMGB 1 contributes to the mediation of lethality by B box, we measured lethality in TNF knock-out mice (TNF-KO, Nowak et al., Am. J. Physiol. Regul. Integr. Comp. Physiol. 278:
81209, 2000) and the wild-type controls (B6x129 strain) sensitized with D-galactosamine (20 mg/mouse) and exposed to B box (1 mg/mouse, injected intraperitoneally). The B box was highly lethal to the wild-type mice (6 dead out of nine exposed) but lethality was not observed in the TNF-KO mice treated with B
box (0 dead out of 9 exposed, p<0.05 v. wild type). Together with the data from the RAW 264.7 macrophage cultures, described herein, these data now indicate that the B box of HMGB 1 confers specific TNF-stimulating cytokine activity.
Example 11: HMGB 1 Protein Level is Increased in Septic Mice To examine the role of HMGB 1 in sepsis, we established sepsis in mice and measured serum HMGB 1 using a quantitative immunoassay described previously (Wang et al., supra). Mice were subjected to cecal ligation and puncture (CLP), a well characterized model of sepsis caused by perforating a surgically-created cecal diverticulum, that leads to polymicrobial peritonitis and sepsis (Fink and Heard, supra; Wichmann et al., supra; and Remick et al., supra). Serum levels of were then measured (Wang et al., supra). FIG. 8 shows the results of this study in a graph that illustrates the levels of HMGB 1 in mice 0 hours, 8 hours, 18 hours, 24 hours, 48 hours, and 72 hours after subjection to CLP. As shown in FIG. 8, serum HMGB 1 levels were not significantly increased for the first eight hours after cecal perforation, then increased significantly after 18 hours (FIG. 8). Increased serum HMGB 1 remained at elevated plateau levels for at least 72 hours after CLP, a kinetic profile that is quite similar to the previously-described, delayed HMGB 1 kinetics in endotoxemia (Wang et al., supra). This temporal pattern of HMGB 1 release corresponded closely to the development of signs of sepsis in the mice. During the first eight hours after cecal perforation the animals were observed to be mildly ill, with some diminished activity and loss of exploratory behavior. Over the ensuing 18 hours the animals became gravely ill, huddled together in groups with piloerection, did not seelc water or food, and became minimally responsive to external stimuli or being examined by the handler.
Example 12: Treatment of Septic Mice with HMGB1 A Box Protein Increases Survival of Mice To determine whether the HMGB 1 A box can inhibit the lethality of HMGB 1 during sepsis, mice were subjected to cecal'perforation and treated by administration of A box beginning 24 hours after the onset of sepsis. CLP was performed on male Balb/c mice as described herein. Animals were randomly grouped, with 15-25 mice per group. The HMGB 1 A box (60 or 600 ~,ghnouse each time) or vector (GST
tag, 600 ~,g/mouse) alone was administered intraperitoneally twice daily for 3 days beginning 24 hours after CLP. Survival was monitored twice daily for up to 2 weeks to ensure no late death occurred. The results of this study are illustrated in FIG. 9, which is a graph of the effect of vector (GST; control) 60 ~,g/mouse or 600 ~g/mouse on survival over time (*P<0,03 vs. control as tested by Fisher's exact test).
As shown in FIG. 9, administration of the HMGB 1 A box significantly rescued mice from the lethal effects of sepsis, and improved survival from 28% in the animals treated with protein purified from the vector protein (GST) devoid of the A
box, to 68% in animals receiving A box (P<0.03 by Fischer's exact test). The rescuing effects of the HMGB 1 A box in this sepsis model were A box dose-dependent;
animals treated with 600 ~,g/mouse of A box were observed to be significantly more alert, active, and to resume feeding behavior as compared to either control animals treated with vector-derived preparations, or to animals treated with only 60 ~,g A box.
The latter animals remained gravely ill, with depressed activity and feeding for several days, and most died.
Example 13 : Treatment of Septic Mice with Anti-HMGB 1 Antibody Increases Survival of Mice Passive immunization of critically ill septic mice with anti-HMGB 1 antibodies was also assessed. In this study, male Balb/c mice (20-25 gm) were subjected to CLP, as described herein. Affinity purified anti-HMGB1 B box polyclonal antibody or rabbit IgG (as control) was administered at 600 ~,g/mouse beginning 24 hours after the surgery, and twice daily for 3 days. Survival was monitored for 2 weeks. The results of this study are shown in FIG. 1 OA, which is a graph of the survival of septic mice treated with either a control antibody or an anti-HMGB 1 antibody. The results show that anti-HMGB 1 antibodies administered to the mice 24 hours after the onset of cecal perforation significantly rescued animals from death as compared to administration of non-immune antibodies (p<0.02 by Fisher's exact test). Within 12 hours after administration of anti-HMGB 1 antibodies, treated animals showed increased activity and responsiveness as compared to controls receiving non-immune antibodies. Whereas animals treated with non-immune antibodies remained huddled, ill kempt, and inactive, the treated animals improved significantly and within 48 hours resumed normal feeding behavior.
Anti-HMGB 1 antibodies did not suppress bacterial proliferation in this model, because we observed comparable bacterial counts (CFU, the aerobic colony forming units) from spleen 31 hours after CLP in the treated animals as compared to animals receiving irrelevant antibodies (control bacteria counts = 3.50.9x104 CFU/g; n=7).
Animals were monitored for up to 2 weeks afterwards, and late deaths were not observed, indicating that treatment with anti-HMGB 1 conferred complete rescue from lethal sepsis, and did not merely delay death.
To our lazowledge, no other specific cytokine-directed therapeutic is as effective when administered so late after the onset of sepsis. By comparison, administration of anti-TNF actually increases mortality in this model, and anti-MIF
antibodies are ineffective if administered more than 8 hours after cecal perforation (Remick et al, supra; and Calandra et al., Nature Med. 6:164-170, 2000). These data demonstrate that HMGB 1 can be targeted as late as 24 hours after cecal perforation in order to rescue lethal cases of established sepsis.
In another example of the rescue of endotoxemic mice using anti-B box antibodies, anti-HMGB 1 B box antibodies were evaluated for their ability to rescue LPS-induced septic mice. Male Balb/c mice (20-25 gm, 26 per group) were treated with an LD75 dose of LPS (15 mg/kg) injected intraperitoneally (IP). Anti-HMGBl B box or non-immune rabbit serum (0.3 ml per mouse each time, IP) was given at time 0, +12 hours and +24 hours after LPS administration. Survival of mice was evaluated over time. The results of this study are shown in FIG. l OB, which is a graph of the survival of septic mice administered anti-HMGB 1 B box antibodies or non-immune serum. As shown in FIG. 1 OB, anti-HMGB 1 B box antibodies improved survival of the septic mice.
Example 14: Inhibition of HMGB 1 Signaling Pathway Using an Anti-RAGE
Antibody Previous data implicated RAGE as an HMGB 1 receptor that can mediate neurite outgrowth during brain development and migration of smooth muscle cells in wound healing (Hori et al. J. Biol. chem. 270:25752-25761, 1995; Merenmies et al.
J. Biol. Chem. 266:16722-16729, 1991; and Degryse et al., J. Cell Biol.
152:1197-1206, 2001). We measured TNF release in RAW 264.7 cultures stimulated with HMGB1 (1 ~,g/ml), LPS (0.1 ~,g/ml), or HMGB1 B box (1 ~,glml) in the presence of anti-RAGE antibody (25 ~,g/ml) or non-immune IgG (25 ~g/ml). Briefly, the cells were seeded into 24-well tissue culture plates and used at 90% confluence. LPS
(E.
coli 0111:B4, Sigma, St. Louis, MO) was sonicated for 20 minutes before use.
Cells were treated with HMGB1 (HMG-1; 1 ~,glml), LPS (0.1 ~g/ml), or HMGB1 B box (B Box; 1 ~,g/ml) in the presence of anti-RAGE antibody (25 ~g/ml) or non-immune IgG (25 ~,glml), as indicated in FIG. 11A, for 16 hours in serum-free Opti-MEM
I
medium (Life Technologies) and supernatants were collected for TNF measurement using the L929 cytotoxicity assay described herein. IgG purified polyclonal anti-RAGE antibody (Catalog No. sc-8230, N-16, Santa Cruz Biotech, Inc., Santa Cruz, CA) was dialyzed extensively against PBS before use. The results of this study are shown in FIG. 11A, which is a histogram of the effects of HMGB 1, LPS, or HMGB
B box in the presence of anti-RAGE antibodies or non-immune IgG (control) on TNF
release from RAW 264.7 cells. As shown in FIG. 11A, compared to non-immune IgG, anti-RAGE antibody significantly inhibited HMGB 1 B box-induced TNF
release. This suppression was specific, because anti-RAGE did not significantly inhibit LPS-stimulated TNF release. Notably, the maximum inhibitory effect of anti-RAGE decreased HMG-1 signaling by only 40%, suggesting that other signal transduction pathways may participate in HMGB 1 signaling.
To examine the effects of HMGB 1 or HMGB 1 B box on the NF-xB-dependent SLAM promoter, the following experiment was carried out. RAW
264.7 macrophages were transiently co-transfected with an expression plasmid encoding a marine MyD 88-dominant-negative (DN) mutant (corresponding to amino acids 146-296), or empty vector, plus a luciferase reporter plasmid under the control of the NF-xB-dependent SLAM promoter, as described by Means et al. (J.
Immunol. 166:4074-4082, 2001). A portion of the cells were then stimulated with full-length HMGBl (100 ng/ml), or purified HMGB1 B box (10 ~glml), for 5 hours.
Cells were then harvested and luciferase activity was measured, using standard methods. All transfections were performed in triplicate, repeated at least three times, and a single representative experiment is shown in FIG. 11B. As shown in FIG.
118, HMGB 1 stimulated luciferase activity in samples that were not co-transfected with the MyD 88 dominant negative, and the level of stimulation was decreased in samples that were co-transfected with the MyD 88 dominant negative. This effect was also observed in samples administered HMGB B box.
While tlus invention has been particularly shown and described with references to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.
SEQUENCE LISTING
<110> Critical Therapeutics, Inc.
Newman, Walter O'Keefe, Theresa L.
<120> USE OF HMGB FRAGMENTS AS
ANTI-INFLAMMATORY AGENTS
<130> 3258.1008003 <150> 60/427,846 <151> 2002-11-20 <150> 60/427,841 <151> 2002-1l-20 <160> 58 <170> FastSEQ for Windows Version 4.0 <210> 1 <211> 215 <212> PRT
<213> Homo sapiens <400> 1 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Tle Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Asp Glu Glu Asp Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 2 <211> 215 <212> PRT
<213> Mus musculus <400> 2 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro 65 70 ~ 75 80 Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Asp Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Glu Glu Glu Asp Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 3 <211> 209 <212> PRT
<213> Homo sapiens <400> 3 Met Gly Lys Gly Asp Pro Asn Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ser Ser Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Ser Lys Phe Glu Asp Met Ala Lys Ser Asp Lys Ala Arg Tyr Asp Arg Glu Met Lys Asn Tyr Val Pro Pro Lys Gly Asp Lys Lys Gly Lys Lys Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu His Arg Pro Lys Ile Lys Ser Glu His Pro Gly Leu Ser Ile Gly Asp Thr Ala Lys Lys Leu Gly Glu Met Trp Ser Glu Gln Ser Ala Lys Asp Lys Gln Pro Tyr Glu Gln Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Ser Glu Ala Gly Lys Lys Gly Pro Gly Arg Pro Thr Gly Ser Lys Lys Lys Asn Glu~Pro Glu Asp Glu Glu Glu Glu Glu Glu Glu Glu Asp Glu Asp Glu Glu Glu Glu Asp Glu Asp Glu Glu <210> 4 <211> 54 <212> PRT
<213> Homo Sapiens <400> 4 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser G1u Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 5 <211> 69 <212> PRT
<213> Homo Sapiens <400> 5 Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Ly~s Asp Ile Ala Ala <210> 6 <211> 22 <212> DNA
<213> Homo Sapiens <400> 6 gatgggcaaa ggagatccta ag 22 <210> 7 <211> 29 <212> DNA
<213> Homo Sapiens <400> 7 gcggccgctt attcatcatc atcatcttc 29 <210> 8 <211> 22 <212> DNA
<213> Homo Sapiens <400> 8 gatgggcaaa ggagatccta ag 22 <210>
<211>
<212>
DNA
<213> Sapiens Homo <400>
gcggccgctcacttgcttttttcagccttg ac 32 <210>
<211>
<212>
DNA
<213> sapiens Homo <400>
gagcataagaagaagcaccca ~ 21 <210>
<211>
<212>
DNA
<213> Sapiens Homo <400>
gcggccgctcacttgcttttttcagccttg ac 32 <210>
<211>
<212>
DNA
<213> sapiens Homo <400>
aagttcaaggatcccaatgcaaag 24 <210>
<211>
<212>
DNA
<213> Sapiens Homo <400>
gcggccgctcaatatgcagctatatccttt tc 32 <210>
<211>
<212>
DNA
<213> Sapiens Homo <400>
gatgggcaaaggagatcctaag 22 <210>
<211>
<212>
DNA
<213> Sapiens Homo <400>
tCaCttttttgtCtCCCCtttggg 24 <210>
<211>
<212>
PRT
<213> Sapiens Homo <400> 16 Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys <210> 17 <211> 54 <212> PRT
<213> Homo Sapiens <400> 17 Pro Asp Ser Ser Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Ser Lys Phe Glu Asp Met 20 , 25 30 Ala Lys Ser Asp Lys Ala Arg Tyr Asp Arg Glu Met Lys Asn Tyr Val Pro Pro Lys Gly Asp Lys <210> 18 <2115 216 <212> PRT
<213> Homo Sapiens <400> 18 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro 20 ~ 25 30 Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 19 <211> 182 <212> PRT
<213> Homo Sapiens <400> 19 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys,Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys G1y Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys <210> 20 <211> 74 <212> PRT
<213> Homo Sapiens <400> 20 Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 21 <211> 85 <212> PRT
<213> Homo Sapiens <400> 21 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala 50 55 ~ 60 Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 22 <211> 77 <212> PRT
<213> Homo Sapiens <400> 22 Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg 1 5 10 ~ 15 Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 23 <211> 20 <212> PRT
<213> Homo Sapiens <400> 23 Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu <210> 24 <211> 216 <212> PRT
<213> Homo Sapiens <400> 24 Met Gly Lys Gly Asp Pro Lys Lys Pro Thr Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu,Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Asp Asp Asp Asp Glu <210> 25 <211> 211 <212> PRT
<213> Homo Sapiens <400> 25 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Ser Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Asn Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Thr His Tyr Glu Arg Gln Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr His Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln'Pro Gly Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Gln Ala Lys Gly Lys Pro Glu Ala Ala Lys Lys Gly Val Val Lys Ala' Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Glu Glu Glu Glu Asp Glu Glu Asp Glu Glu Asp Asp Asp Asp Glu <210> 26 <211> 188 <212> PRT
<213> Homo Sapiens <400> 26 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu Cys Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Ala Met Ser Ala Lys Asp Lys Gly Lys Phe Glu Asp Met Ala Lys Val Asp Lys Asp Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys Lys Phe Glu Asp Ser Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Leu Leu Phe Cys Ser Glu Tyr Cys Pro Lys Ile Lys Gly Glu His Pro Gly Leu Pro Ile Ser Asp Val Ala Lys Lys Leu Val Glu Met Trp Asn Asn Thr Phe Ala Asp Asp Lys Gln Leu Cys Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Thr Ala Thr Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu <210> 27 <211> 205 <212> PRT
<213> Homo Sapiens <400> 27 Met Asp Lys Ala Asp Pro Lys Lys Leu Arg Gly Glu Met Leu Ser Tyr 1 5 l0 15 Ala Phe Phe Val Gln Thr Cys Gln Glu Glu His Lys Lys Lys Asn Pro Asp Ala Ser Val Lys Phe Ser Glu Phe Leu Lys Lys Cys Ser Glu Thr Trp Lys Thr Ile Phe Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Lys Lys Lys Lys Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Leu Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Asp Asp Val Val Lys Lys Leu Ala Gly Met Trp Asn Asn Thr Ala Ala Ala Asp Lys Gln Phe Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asn Ser Ala Lys Lys Arg Val Val Lys Ala Glu Lys Ser Lys Lys Lys Lys Glu Glu Glu Glu Asp Glu Glu 180, 185 190 Asp Glu Gln Glu Glu Glu Asn Glu Glu Asp Asp Asp Lys <210> 28 <211> 80 <212> PRT
<213> Homo Sapiens <400> 28 ' Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Cys Ala Phe Phe Val Gln Thr Cys Trp Glu Glu His Lys Lys Gln Tyr Pro Asp Ala Ser Ile Asn Phe Ser Glu Phe Ser Gln Lys Cys Pro Glu Thr Trp Lys Thr Thr Ile Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Pro Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro <210> 29 <211> 80 <212> PRT
<213> Homo Sapiens <400> 29 Lys Gln Arg Gly Lys Met Pro Ser Tyr Val Phe Cys Val Gln Thr Cys Pro Glu Glu Arg Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Leu Val Arg Gly Lys Thr Met Ser Ala Lys Glu Lys Gly Gln Phe Glu Ala Met Ala Arg Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr Lys Lys <210> 30 <211> 86 <212> PRT
<213> Homo Sapiens <400> 30 Met Gly Lys Arg Asp Pro Lys Gln Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Ala Gln Glu Glu His Lys Lys Lys Gln Leu Asp Ala Ser Val Ser Phe Ser Glu Phe Ser Lys Asn Cys Ser Glu Arg Trp Lys Thr Met Ser Val Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Cys Tyr Glu Arg Glu Met Lys Ile Tyr Pro Tyr Leu Lys Gly Arg Gln Lys <210> 31 <211> 70 <212> PRT
<213> Homo Sapiens <400> 31 Met Gly Lys Gly Asp Pro Lys Lys Pro Arg Glu Lys Met Pro Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Ala His Lys Asn Lys His Pro Asp Ala Ser Val Asn Ser Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Pro Thr Lys Gln Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Arg Ala His <210> 32 <211> 648 <212> DNA
<213> Homo sapiens <400> 32 atgggcaaag gagatcctaa gaagccgaca ggcaaaatgt catcatatgc attttttgtg 60 caaacttgtc gggaggagca taagaagaag cacccagatg cttcagtcaa cttctcagag 120 ttttctaaga agtgctcaga gaggtggaag accatgtctg ctaaagagaa aggaaaattt 180 gaagatatgg caaaggcgga caaggcccgt tatgaaagag aaatgaaaac ctatatccct 240 cccaaagggg agacaaaaaa gaagttcaag gatcccaatg cacccaagag gcttccttcg 300 gCCttCttCC tcttctgctc tgagtatcgc ccaaaaatca aaggagaaca tcctggcctg 360 tccattggtg atgttgcgaa gaaactggga gagatgtgga ataacactgc tgcagatgac 420 aagcagcctt atgaaaagaa ggctgcgaag ctgaaggaaa aatacgaaaa ggatatagct 480 gcatatcgag ctaaaggaaa gcctgatgca gcaaaaaagg gagttgtcaa ggctgaaaaa 540 agcaagaaaa agaaggaaga ggaggaagat gaggaagatg aagaggatga ggaggaggag 600 gaagatgaag aagatgaaga agatgaagaa gaagatgatg atgatgaa 648 <210> 33 <211> 633 <212> DNA
<213> Homo Sapiens <400> 33 atgggcaaag gagatcctaa gaagccgaga ggcaaaatgt catcatatgc attttttgtg 60 caaacttgtc gggaggagca taagaagaag cactcagatg cttcagtcaa cttctcagag 120 ttttctaaca agtgctcaga gaggtggaag accatgtctg ctaaagagaa aggaaaattt 180 gaggatatgg caaaggcgga caagacccat tatgaaagac aaatgaaaac ctatatccct 240 cccaaagggg agacaaaaaa gaagttcaag gatcccaatg cacccaagag gcctccttcg 300 gccttcttcc tgttctgctc tgagtatcac ccaaaaatca aaggagaaca tcctggcctg 360 tccattggtg atgttgcgaa gaaactggga gagatgtgga ataacactgc tgcagatgac 420 aagcagcctg gtgaaaagaa ggctgcgaag ctgaaggaaa aatacgaaaa ggatattgct 480 gcatatcaag ctaaaggaaa gcctgaggca gcaaaaaagg gagttgtcaa agctgaaaaa 540 agcaagaaaa agaaggaaga ggaggaagat gaggaagatg aagaggatga ggaggaggaa 600 gatgaagaag atgaagaaga tgatgatgat gaa 633 <210> 34 <211> 564 <212> DNA
<213> Homo Sapiens <400> 34 atgggcaaag gagaccctaa gaagccgaga ggcaaaatgt catcatatgc attttttgtg 60 caaacttgtc gggaggagtg taagaagaag cacccagatg cttcagtcaa cttctcagag 120 ttttctaaga agtgctcaga gaggtggaag gccatgtctg ctaaagataa aggaaaattt 180 gaagatatgg caaaggtgga caaagaccgt tatgaaagag aaatgaaaac ctatatccct 240 cctaaagggg agacaaaaaa gaagttcgag gattccaatg cacccaagag gcctccttcg 300 gcctttttgc tgttctgctc tgagtattgc ccaaaaatca aaggagagca tcctggcctg 360 cctattagcg atgttgcaaa gaaactggta gagatgtgga ataacacttt tgcagatgac 420 aagcagcttt gtgaaaagaa ggctgcaaag ctgaaggaaa aatacaaaaa ggatacagct 480 acatatcgag ctaaaggaaa gcctgatgca gcaaaaaagg gagttgtcaa ggctgaaaaa 540 agcaagaaaa agaaggaaga ggag 564 <210> 35 <211> 615 <212> DNA
<213> Homo Sapiens <400> 35 atggacaaag cagatcctaa gaagctgaga ggtgaaatgt tatcatatgc attttttgtg 60 caaacttgtc aggaggagca taagaagaag aacccagatg cttcagtcaa gttctcagag 120 tttttaaaga agtgctcaga gacatggaag accatttttg ctaaagagaa aggaaaattt 180 gaagatatgg caaaggcgga caaggcccat tatgaaagag aaatgaaaac ctatatccct 240 cctaaagggg agaaaaaaaa gaagttcaag gatcccaatg cacccaagag gcctcctttg 300 gcctttttcc tgttctgctc tgagtatcgc ccaaaaatca aaggagaaca tcctggcctg 360 tccattgatg atgttgtgaa gaaactggca gggatgtgga ataacaccgc tgcagctgac 420 aagcagtttt atgaaaagaa ggctgcaaag ctgaaggaaa aatacaaaaa ggatattgct 480 gcatatcgag ctaaaggaaa gcctaattca gcaaaaaaga gagttgtcaa ggctgaaaaa 540 agcaagaaaa agaaggaaga ggaagaagat gaagaggatg aacaagagga ggaaaatgaa 600 gaagatgatg ataaa 615 <210> 36 <211> 240 <212 > DNA
<213> Homo Sapiens <400> 36 atgggcaaag gagatcctaa gaagccgaga ggcaaaatgt catcatgtgc attttttgtg 60 caaacttgtt gggaggagca taagaagcag tacccagatg cttcaatcaa cttctcagag 120 ttttctcaga agtgcccaga gacgtggaag accacgattg ctaaagagaa aggaaaattt 180 gaagatatgc caaaggcaga caaggcccat tatgaaagag aaatgaaaac ctatataccc 240 <210> 37 <211> 240 <212> DNA
<213> Homo Sapiens <400> 37 aaacagagag gcaaaatgcc atcgtatgta ttttgtgtgc aaacttgtcc ggaggagcgt 60 aagaagaaac acccagatgc ttcagtcaac ttctcagagt tttctaagaa gtgcttagtg 120 agggggaaga ccatgtctgc taaagagaaa ggacaatttg aagctatggc aagggcagac 180 aaggcccgtt acgaaagaga aatgaaaaca tatatccctc ctaaagggga gacaaaaaaa 240 <210> 38 <211> 258 <212> DNA
<213> Homo Sapiens <400> 38 atgggcaaaa gagaccctaa gcagccaaga ggcaaaatgt catcatatgc attttttgtg 60 caaactgctc aggaggagca caagaagaaa caactagatg cttcagtcag tttctcagag 120 ttttctaaga actgctcaga gaggtggaag accatgtctg ttaaagagaa aggaaaattt 180 gaagacatgg caaaggcaga caaggcctgt tatgaaagag aaatgaaaat atatccctac 240 ttaaagggga gacaaaaa 258 <210> 39 <211> 211 <212> DNA
<213> Homo Sapiens <400> 39 atgggcaaag gagaccctaa gaagccaaga gagaaaatgc catcatatgc attttttgtg 60 caaacttgta gggaggcaca taagaacaaa catccagatg cttcagtcaa ctcctcagag 120 ttttctaaga agtgctcaga gaggtggaag accatgccta ctaaacagaa aggaaaattc 180 gaagatatgg caaaggcaga cagggcccat a 211 <210> 40 <211> 54 <212> PRT
<213> Homo Sapiens <400> 40 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile 35 . 40 45 Pro Pro Lys Gly Glu Thr <210> 41 <211> 53 <212> PRT
<213> Homo sapiens <400> 41 Asp Ser Ser Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Ser Lys Phe Glu Asp Met Ala Lys Ser Asp Lys Ala Arg Tyr Asp Arg Glu Met Lys Asn Tyr Val Pro Pro Lys Gly Asp Lys <210> 42 <211> 54 <212> PRT
<213> Homo Sapiens <400> 42 Pro Glu Val Pro Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Val Ser Gly Lys Glu Lys Ser Lys Phe Asp Glu Met Ala Lys Ala Asp Lys Val Arg Tyr Asp Arg Glu Met Lys Asp Tyr Gly Pro Ala Lys Gly Gly Lys <210> 43 <211> 54 <212> PRT
<213> Homo Sapiens <400> 43 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 44 <211> 54 <212> PRT
<213> Homo Sapiens <400> 44 Ser Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Asn Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Thr His Tyr Glu Arg Gln Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 45 <211> 54 <212> PRT
<213> Homo sapiens <400> 45 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Ala Met Ser Ala Lys Asp Lys Gly Lys Phe Glu Asp Met Ala Lys Val Asp Lys Ala Asp Tyr Glu Arg Glu Met Lys Thr Tyr Ile 35 40 45 i Pro Pro Lys Gly Glu Thr <210> 46 <21l> 54 <212> PRT
<213> Homo sapiens <400> 46 Pro Asp Ala Ser Val Lys Phe Ser Glu Phe Leu Lys Lys Cys Ser Glu Thr Trp Lys Thr Ile Phe Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Lys <210> 47 <211> 54 <212> PRT
<213> Homo sapiens <400> 47 Pro Asp Ala Ser Ile Asn Phe Ser Glu Phe Ser Gln Lys Cys Pro Glu Thr Trp Lys Thr Thr Ile Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 48 <211> 38 <212> PRT
<213> Homo sapiens <400> 48 Pro Asp Ala Ser Val Asn Ser Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Pro Thr Lys Gln Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Arg Ala His <210> 49 <211> 54 <212> PRT
<213> Homo Sapiens <400> 49 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Leu Val Arg Gly Lys Thr Met Ser Ala Lys Glu Lys Gly Gln Phe Glu Ala Met Ala Arg Ala Asp Lys Ala Arg Tyr G1u Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 50 <211> 54 <212> PRT
<213> Homo Sapiens <400> 50 Leu Asp Ala Ser Val Ser Phe Ser Glu Phe Ser Asn Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Val Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Cys Tyr Glu Arg Glu Met Lys Ile Tyr Pro Tyr Leu Lys Gly Arg Gln <210> 51 <211> 74 <212> PRT
<213> Homo Sapiens <400> 51 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 52 <211> 74 <212> PRT
<213> Homo Sapiens <400> 33 atgggcaaag gagatcctaa gaagccgaga ggcaaaatgt catcatatgc attttttgtg 60 caaacttgtc gggaggagca taagaagaag cactcagatg cttcagtcaa cttctcagag 120 ttttctaaca agtgctcaga gaggtggaag accatgtctg ctaaagagaa aggaaaattt 180 gaggatatgg caaaggcgga caagacccat tatgaaagac aaatgaaaac ctatatccct 240 cccaaagggg agacaaaaaa gaagttcaag gatcccaatg cacccaagag gcctccttcg 300 gccttcttcc tgttctgctc tgagtatcac ccaaaaatca aaggagaaca tcctggcctg 360 tccattggtg atgttgcgaa gaaactggga gagatgtgga ataacactgc tgcagatgac 420 aagcagcctg gtgaaaagaa ggctgcgaag ctgaaggaaa aatacgaaaa ggatattgct 480 gcatatcaag ctaaaggaaa gcctgaggca gcaaaaaagg gagttgtcaa agctgaaaaa 540 agcaagaaaa agaaggaaga ggaggaagat gaggaagatg aagaggatga ggaggaggaa 600 gatgaagaag atgaagaaga tgatgatgat gaa 633 <210> 34 <211> 564 <212> DNA
<213> Homo Sapiens <400> 34 atgggcaaag gagaccctaa gaagccgaga ggcaaaatgt catcatatgc attttttgtg 60 caaacttgtc gggaggagtg taagaagaag cacccagatg cttcagtcaa cttctcagag 120 ttttctaaga agtgctcaga gaggtggaag gccatgtctg ctaaagataa aggaaaattt 180 gaagatatgg caaaggtgga caaagaccgt tatgaaagag aaatgaaaac ctatatccct 240 cctaaagggg agacaaaaaa gaagttcgag gattccaatg cacccaagag gcctccttcg 300 gcctttttgc tgttctgctc tgagtattgc ccaaaaatca aaggagagca tcctggcctg 360 cctattagcg atgttgcaaa gaaactggta gagatgtgga ataacacttt tgcagatgac 420 aagcagcttt gtgaaaagaa ggctgcaaag ctgaaggaaa aatacaaaaa ggatacagct 480 acatatcgag ctaaaggaaa gcctgatgca gcaaaaaagg gagttgtcaa ggctgaaaaa 540 agcaagaaaa agaaggaaga ggag 564 <210> 35 <211> 615 <212> DNA
<213> Homo Sapiens <400> 35 atggacaaag cagatcctaa gaagctgaga ggtgaaatgt tatcatatgc attttttgtg 60 caaacttgtc aggaggagca taagaagaag aacccagatg cttcagtcaa gttctcagag 120 tttttaaaga agtgctcaga gacatggaag accatttttg ctaaagagaa aggaaaattt 180 gaagatatgg caaaggcgga caaggcccat tatgaaagag aaatgaaaac ctatatccct 240 cctaaagggg agaaaaaaaa gaagttcaag gatcccaatg cacccaagag gcctcctttg 300 gcctttttcc tgttctgctc tgagtatcgc ccaaaaatca aaggagaaca tcctggcctg 360 tccattgatg atgttgtgaa gaaactggca gggatgtgga ataacaccgc tgcagctgac 420 aagcagtttt atgaaaagaa ggctgcaaag ctgaaggaaa aatacaaaaa ggatattgct 480 gcatatcgag ctaaaggaaa gcctaattca gcaaaaaaga gagttgtcaa ggctgaaaaa 540 agcaagaaaa agaaggaaga ggaagaagat gaagaggatg aacaagagga ggaaaatgaa 600 gaagatgatg ataaa 615 <210> 36 <211> 240 <212 > DNA
<213> Homo Sapiens <400> 36 atgggcaaag gagatcctaa gaagccgaga ggcaaaatgt catcatgtgc attttttgtg 60 caaacttgtt gggaggagca taagaagcag tacccagatg cttcaatcaa cttctcagag 120 ttttctcaga agtgcccaga gacgtggaag accacgattg ctaaagagaa aggaaaattt 180 gaagatatgc caaaggcaga caaggcccat tatgaaagag aaatgaaaac ctatataccc 240 <210> 37 <211> 240 <212> DNA
<213> Homo Sapiens <400> 37 aaacagagag gcaaaatgcc atcgtatgta ttttgtgtgc aaacttgtcc ggaggagcgt 60 aagaagaaac acccagatgc ttcagtcaac ttctcagagt tttctaagaa gtgcttagtg 120 agggggaaga ccatgtctgc taaagagaaa ggacaatttg aagctatggc aagggcagac 180 aaggcccgtt acgaaagaga aatgaaaaca tatatccctc ctaaagggga gacaaaaaaa 240 <210> 38 <211> 258 <212> DNA
<213> Homo Sapiens <400> 38 atgggcaaaa gagaccctaa gcagccaaga ggcaaaatgt catcatatgc attttttgtg 60 caaactgctc aggaggagca caagaagaaa caactagatg cttcagtcag tttctcagag 120 ttttctaaga actgctcaga gaggtggaag accatgtctg ttaaagagaa aggaaaattt 180 gaagacatgg caaaggcaga caaggcctgt tatgaaagag aaatgaaaat atatccctac 240 ttaaagggga gacaaaaa 258 <210> 39 <211> 211 <212> DNA
<213> Homo Sapiens <400> 39 atgggcaaag gagaccctaa gaagccaaga gagaaaatgc catcatatgc attttttgtg 60 caaacttgta gggaggcaca taagaacaaa catccagatg cttcagtcaa ctcctcagag 120 ttttctaaga agtgctcaga gaggtggaag accatgccta ctaaacagaa aggaaaattc 180 gaagatatgg caaaggcaga cagggcccat a 211 <210> 40 <211> 54 <212> PRT
<213> Homo Sapiens <400> 40 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile 35 . 40 45 Pro Pro Lys Gly Glu Thr <210> 41 <211> 53 <212> PRT
<213> Homo sapiens <400> 41 Asp Ser Ser Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Ser Lys Phe Glu Asp Met Ala Lys Ser Asp Lys Ala Arg Tyr Asp Arg Glu Met Lys Asn Tyr Val Pro Pro Lys Gly Asp Lys <210> 42 <211> 54 <212> PRT
<213> Homo Sapiens <400> 42 Pro Glu Val Pro Val Asn Phe Ala Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Val Ser Gly Lys Glu Lys Ser Lys Phe Asp Glu Met Ala Lys Ala Asp Lys Val Arg Tyr Asp Arg Glu Met Lys Asp Tyr Gly Pro Ala Lys Gly Gly Lys <210> 43 <211> 54 <212> PRT
<213> Homo Sapiens <400> 43 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 44 <211> 54 <212> PRT
<213> Homo Sapiens <400> 44 Ser Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Asn Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Thr His Tyr Glu Arg Gln Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 45 <211> 54 <212> PRT
<213> Homo sapiens <400> 45 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Ala Met Ser Ala Lys Asp Lys Gly Lys Phe Glu Asp Met Ala Lys Val Asp Lys Ala Asp Tyr Glu Arg Glu Met Lys Thr Tyr Ile 35 40 45 i Pro Pro Lys Gly Glu Thr <210> 46 <21l> 54 <212> PRT
<213> Homo sapiens <400> 46 Pro Asp Ala Ser Val Lys Phe Ser Glu Phe Leu Lys Lys Cys Ser Glu Thr Trp Lys Thr Ile Phe Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Lys <210> 47 <211> 54 <212> PRT
<213> Homo sapiens <400> 47 Pro Asp Ala Ser Ile Asn Phe Ser Glu Phe Ser Gln Lys Cys Pro Glu Thr Trp Lys Thr Thr Ile Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala His Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 48 <211> 38 <212> PRT
<213> Homo sapiens <400> 48 Pro Asp Ala Ser Val Asn Ser Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Pro Thr Lys Gln Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Arg Ala His <210> 49 <211> 54 <212> PRT
<213> Homo Sapiens <400> 49 Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Leu Val Arg Gly Lys Thr Met Ser Ala Lys Glu Lys Gly Gln Phe Glu Ala Met Ala Arg Ala Asp Lys Ala Arg Tyr G1u Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 50 <211> 54 <212> PRT
<213> Homo Sapiens <400> 50 Leu Asp Ala Ser Val Ser Phe Ser Glu Phe Ser Asn Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Val Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys Ala Cys Tyr Glu Arg Glu Met Lys Ile Tyr Pro Tyr Leu Lys Gly Arg Gln <210> 51 <211> 74 <212> PRT
<213> Homo Sapiens <400> 51 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 52 <211> 74 <212> PRT
<213> Homo Sapiens <400> 52 Lys Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu His Arg Pro Lys Ile Lys Ser Glu His Pro Gly Leu Ser Ile Gly Asp Thr Ala Lys Lys Leu Gly Glu Met Trp Ser Glu Gln Ser Ala Lys Asp Lys Gln Pro Tyr Glu Gln Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 53 <211> 74 <212> PRT
<213> Homo Sapiens <400> 53 Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 54 <211> 74 <212> PRT
<213> Homo Sapiens <400> 54 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr His Pro,Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Gly Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 55 <211> 74 <212> PRT
<213> Homo Sapiens <400> 55 Phe Lys Asp Ser Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Leu Leu Phe Cys Ser Glu Tyr Cys Pro Lys Ile Lys Gly Glu His Pro Gly Leu Pro Ile Ser Asp Val Ala Lys Lys Leu Val Glu Met Trp Asn Asn Thr Phe Ala Asp Asp Lys Gln Leu Cys Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Thr Ala Thr Tyr <210> 56 <211> 74 <212> PRT
<213> Homo Sapiens <400> 56 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Val Lys Lys Leu Ala Gly Met Trp Asn Asn Thr Ala Ala Ala Asp Lys Gln Phe Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Ile Ala Ala Tyr <210> 57 <211> 84 <212> PRT
<213> Homo Sapiens <400> 57 Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys A1a Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 58 <211> 92 <212> PRT
<213> Homo Sapiens <400> 58 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys G1u Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys
<213> Homo Sapiens <400> 53 Phe Lys Asp Pro Asn Ala Pro Lys Arg Leu Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 54 <211> 74 <212> PRT
<213> Homo Sapiens <400> 54 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr His Pro,Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Gly Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Glu Lys Asp Ile Ala Ala Tyr <210> 55 <211> 74 <212> PRT
<213> Homo Sapiens <400> 55 Phe Lys Asp Ser Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Leu Leu Phe Cys Ser Glu Tyr Cys Pro Lys Ile Lys Gly Glu His Pro Gly Leu Pro Ile Ser Asp Val Ala Lys Lys Leu Val Glu Met Trp Asn Asn Thr Phe Ala Asp Asp Lys Gln Leu Cys Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Thr Ala Thr Tyr <210> 56 <211> 74 <212> PRT
<213> Homo Sapiens <400> 56 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Val Lys Lys Leu Ala Gly Met Trp Asn Asn Thr Ala Ala Ala Asp Lys Gln Phe Tyr Glu Lys Lys Ala Ala Lys Leu Lys Glu Lys Tyr Lys Lys Asp Ile Ala Ala Tyr <210> 57 <211> 84 <212> PRT
<213> Homo Sapiens <400> 57 Gly Lys Gly Asp Pro Lys Lys Pro Arg Gly Lys Met Ser Ser Tyr Ala Phe Phe Val Gln Thr Cys Arg Glu Glu His Lys Lys Lys His Pro Asp Ala Ser Val Asn Phe Ser Glu Phe Ser Lys Lys Cys Ser Glu Arg Trp Lys Thr Met Ser Ala Lys Glu Lys Gly Lys Phe Glu Asp Met Ala Lys Ala Asp Lys A1a Arg Tyr Glu Arg Glu Met Lys Thr Tyr Ile Pro Pro Lys Gly Glu Thr <210> 58 <211> 92 <212> PRT
<213> Homo Sapiens <400> 58 Phe Lys Asp Pro Asn Ala Pro Lys Arg Pro Pro Ser Ala Phe Phe Leu Phe Cys Ser Glu Tyr Arg Pro Lys Ile Lys Gly Glu His Pro Gly Leu Ser Ile Gly Asp Val Ala Lys Lys Leu Gly Glu Met Trp Asn Asn Thr Ala Ala Asp Asp Lys Gln Pro Tyr Glu Lys Lys Ala Ala Lys Leu Lys G1u Lys Tyr Glu Lys Asp Ile Ala Ala Tyr Arg Ala Lys Gly Lys Pro Asp Ala Ala Lys Lys Gly Val Val Lys Ala Glu Lys
Claims (57)
1. A polypeptide comprising a high mobility group box protein (HMGB) A box or variant thereof which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein, wherein said HMGB A box is selected from the group consisting of an HMG1L5 A
box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
2. A polypeptide comprising a high mobility group box protein (HMGB) A box which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein, wherein said HMGB A box is selected from the group consisting of an HMG1L5 A box, an HMG1L1 A
box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
3. A polypeptide wherein the polypeptide is a high mobility group box protein (HMGB) A box biologically active fragment or variant thereof which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein, wherein said HMGB A box biologically active fragment is selected from the group consisting of an HMG1L5 A box fragment, an HMG1L1 A box fragment, an HMG1L4 A box fragment, an HMGB A box polypeptide of BAC clone RP11-395A23 fragment, an HMG1L9 A box fragment, an LOC122441 A box fragment, an LOC139603 A box fragment, and an HMG1L8 A box fragment.
4. A polypeptide wherein the polypeptide is a high mobility group box protein (HMGB) A box biologically active fragment which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein, wherein said HMGB A box biologically active fragment is selected from the group consisting of an HMG1L5 A box fragment, an HMG1L1 A box fragment, an HMG1L4 A box fragment, an HMGB A box polypeptide fragment of BAC clone RP11-395A23, an HMG1L9 A box fragment, an LOC122441 A box fragment, an LOC139603 A box fragment, and an HMG1L8 A box fragment.
5. A composition comprising a polypeptide comprising a high mobility box protein (HMGB) A box or variant thereof which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein in a pharmaceutically acceptable carrier, wherein said HMGB A box is selected from the group consisting of an HMG1L5 A box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
6. A composition comprising a polypeptide comprising a high mobility box protein (HMGB) A box which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein in a pharmaceutically acceptable carrier, wherein said HMGB A box is selected from the group consisting of an HMG1L5 A box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
7. A composition comprising a polypeptide wherein the polypeptide is a high mobility group box protein (HMGB) A box biologically active fragment or variant thereof which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein in a pharmaceutically acceptable carrier, wherein said HMGB A box biologically active fragment is selected from the group consisting of an HMG1L5 A box fragment, an HMG1L1 A box fragment, an HMG1L4 A box fragment, an HMGB A box polypeptide fragment of BAC clone RP11-395A23, an HMG1L9 A box fragment, an LOC122441 A box fragment, an LOC139603 A box fragment, and an HMG1L8 A box fragment.
8. A composition comprising a polypeptide wherein the polypeptide is a high mobility group box protein (HMGB) A box biologically active fragment which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein in a pharmaceutically acceptable carrier, wherein said HMGB A box biologically active fragment is selected from the group consisting of an HMG1L5 A box fragment, an HMG1L1 A box fragment, an HMG1L4 A box fragment, an HMGB A box polypeptide fragment of BAC clone RP11-395A23, an HMG1L9 A box fragment, an LOC122441 A box fragment, an LOC139603 A box fragment, and an HMG1L8 A box fragment.
9. A purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, wherein said antibodies can inhibit release of a proinflammatory cytokine from a cell treated with HMGB, wherein said HMGB B box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
10. A polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, but not comprising a full length HMGB, wherein said polypeptide can cause release of a proinflammatory cytokine from a cell, and wherein said HMGB B box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B
box polypeptide of BAC clone RP11-395A23.
box polypeptide of BAC clone RP11-395A23.
11. A polypeptide comprising a high mobility group box protein (HMGB) B box, but not comprising a full length HMGB, wherein said polypeptide can cause release of a proinflammatory cytokine from a cell, and wherein said HMGB B
box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
12. A polypeptide wherein the polypeptide is a high mobility group box protein (HMGB) B box biologically active fragment or variant thereof, wherein said HMGB B box biologically active fragment is selected from the group consisting of an HMG1L5 B box fragment, an HMG1L1 B box fragment, an HMG1L4 B box fragment, and an HMGB B box polypeptide fragment of BAC clone RP11-395A23.
13. A polypeptide wherein the polypeptide is a high mobility group box protein (HMGB) B box biologically active fragment, wherein said HMGB B box biologically active fragment is selected from the group consisting of an HMG1L5 B box fragment, an HMG1L1 B box fragment, an HMG1L4 B box fragment, and an HMGB B box polypeptide fragment of BAC clone RP11-395A23.
14. A method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade, comprising administering to the patient a purified preparation of antibodies that specifically bind to a high mobility group box protein (HMGB) B box but do not specifically bind to non-B box epitopes of HMGB, in an amount sufficient to inhibit the inflammatory cytokine cascade, wherein said HMGB B box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
15. A method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade, comprising administering to the patient a polypeptide comprising a high mobility group box protein (HMGB) A box or variant thereof which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein in an amount sufficient to inhibit release of the proinflammatory cytokine from the cell, wherein said HMGB A box is selected from the group consisting of an HMG1L5 A box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 B box, an LOC139603 A box, and an HMG1L8 A box.
16. A method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade, comprising administering to the patient a polypeptide, wherein said polypeptide is a high mobility group box protein (HMGB) A box biologically active fragment or variant thereof which can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein in an amount sufficient to inhibit release of the proinflammatory cytokine from the cell, wherein said HMGB A box is selected from the group consisting of an HMG1L5 A box, an HMG1L1 A
box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23 A box, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23 A box, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
17. A method for effecting weight loss or treating obesity in a patient, comprising administering to the patient an effective amount of a polypeptide comprising a high mobility group box protein (HMGB) B box or variant thereof, but not comprising a full length HMGB polypeptide, in an amount sufficient to stimulate the release of a proinflammatory cytokine from a cell, wherein said HMGB B box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
18. A method for effecting weight loss or treating obesity in a patient, comprising administering to the patient an effective amount of a polypeptide, wherein said polypeptide is a high mobility group box protein (HMGB) B box biologically active fragment or a variant thereof in an amount sufficient to stimulate the release of a proinflammatory cytokine from a cell, wherein said HMGB B box biologically active fragment is selected from the group consisting of an HMG1L5 B box fragment, an HMG1L1 B box fragment, an HMG1L4 B box fragment, and an HMGB B box polypeptide fragment of BAC clone RP11-395A23 B box.
19. A method of determining whether a compound inhibits inflammation, comprising combining the compound with (a) a cell that releases a proinflammatory cytokine when exposed to a high mobility group box protein (HMGB) B box or a biologically active fragment thereof; and (b) the HMGB B box or biologically active fragment thereof, wherein said HMGB B box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23;
and then determining whether the compound inhibits the release of the proinflammatory cytokine from the cell.
and then determining whether the compound inhibits the release of the proinflammatory cytokine from the cell.
20. A pharmaceutical composition comprising a polypeptide comprising a high mobility group box (HMGB) A box or a fragment or variant thereof that can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein and an agent that inhibits TNF
biological activity, said agent selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier.
biological activity, said agent selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier.
21. The pharmaceutical composition of Claim 20, wherein said polypeptide is a mammalian HMGB A box.
22. The pharmaceutical composition of Claim 21, wherein said polypeptide is a mammalian HMGB 1 A box.
23. The pharmaceutical composition of Claim 22, wherein said polypeptide comprises SEQ ID NO:4.
24. The pharmaceutical composition of Claim 23, wherein said polypeptide consists of SEQ ID NO:4.
25. The pharmaceutical composition of Claim 21, wherein said mammalian HMGB A box is selected from the group consisting of an HMG1L5 A box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
26. A pharmaceutical composition comprising an antibody that binds an HMGB
polypeptide or a biologically active fragment thereof and an agent that inhibits TNF biological activity, said agent selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier.
polypeptide or a biologically active fragment thereof and an agent that inhibits TNF biological activity, said agent selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide, in a pharmaceutically acceptable carrier.
27. The pharmaceutical composition of Claim 26, wherein said HMGB
polypeptide is a mammalian HMGB polypeptide.
polypeptide is a mammalian HMGB polypeptide.
28. The pharmaceutical composition of Claim 27, wherein said HMGB
polypeptide is an HMGB1 polypeptide.
polypeptide is an HMGB1 polypeptide.
29. The pharmaceutical composition of Claim 28, wherein said HMGB1 polypeptide comprises SEQ ID NO:1.
30. The pharmaceutical composition of Claim 29, wherein said HMGB1 polypeptide consists of SEQ ID NO:1.
31. The pharmaceutical composition of Claim 26, wherein said biologically active HMGB fragment is an HMGB B box or a biologically active fragment thereof.
32. The pharmaceutical composition of Claim 31, wherein said HMGB B box consists of SEQ ID NO:5.
33. The pharmaceutical composition of Claim 31, wherein said HMGB B box biologically active fragment consists of SEQ ID NO:23.
34. The pharmaceutical composition of Claim 31, wherein said HMGB B box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B
box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
box, an HMG1L4 B box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
35. The pharmaceutical composition of Claim 26, wherein said antibody is a monoclonal antibody.
36. The pharmaceutical composition of Claim 26, wherein said antibody is a polyclonal antibody.
37. A method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade comprising administering to said patient a composition comprising a polypeptide comprising a high mobility group box (HMGB) A box or a fragment or variant thereof that can inhibit release of a proinflammatory cytokine from a cell treated with high mobility group box (HMGB) protein and an agent that inhibits TNF biological activity, said agent selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide.
38. The method of Claim 37, wherein said composition further comprises a pharmaceutically acceptable carrier.
39. The method of Claim 37, wherein said polypeptide is a mammalian HMGB A
box.
box.
40. The method of Claim 39, wherein said polypeptide is a mammalian HMGB1 A box.
41. The method of Claim 40, wherein said polypeptide comprises SEQ ID NO:4.
42. The method of Claim 41, wherein said polypeptide consists of SEQ ID NO:4.
43. The method of Claim 39, wherein said mammalian HMGB A box is selected from the group consisting of an HMG1L5 A box, an HMG1L1 A box, an HMG1L4 A box, an HMGB A box polypeptide of BAC clone RP11-395A23, an HMG1L9 A box, an LOC122441 A box, an LOC139603 A box, and an HMG1L8 A box.
44. The method of Claim 37, wherein said condition is selected from the group consisting of sepsis, allograft rejection, rheumatoid arthritis, asthma, lupus, adult respiratory distress syndrome, chronic obstructive pulmonary disease, psoriasis, pancreatitis, peritonitis, burns, myocardial ischemia, organic ischemia, reperfusion ischemia, Behcet's disease, graft versus host disease, Crohn's disease, ulcerative colitis, multiple sclerosis, and cachexia.
45. A method of treating a condition in a patient characterized by activation of an inflammatory cytokine cascade comprising administering to said patient a composition comprising an antibody that binds an HMGB polypeptide or a biologically active fragment thereof and an agent that inhibits TNF biological activity, said agent selected from the group consisting of infliximab, etanercept, adalimumab, CDP870, CDP571, Lenercept, and Thalidomide.
46. The method of Claim 45, wherein said composition further comprises a pharmaceutically acceptable carrier.
47. The method of Claim 45, wherein said (HMGB) polypeptide is a mammalian HMGB polypeptide.
48. The method of Claim 47, wherein said HMGB polypeptide is an HMGB1 polypeptide.
49. The method of Claim 48, wherein said HMGB1 polypeptide comprises SEQ
ID NO:1.
ID NO:1.
50. The method of Claim 49, wherein said HMGB1 polypeptide consists of SEQ
ID NO:1.
ID NO:1.
51. The method of Claim 45, wherein said biologically active HMGB fragment is an HMGB B box or a biologically active fragment thereof.
52. The method of Claim 51, wherein said HMGB B box is selected from the group consisting of an HMG1L5 B box, an HMG1L1 B box, an HMG1L4 B
box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
box, and an HMGB B box polypeptide of BAC clone RP11-395A23.
53. The method of Claim 51, wherein said HMGB1 B box consists of SEQ ID
NO:5.
NO:5.
54. The method of Claim 51, wherein said HMGB1 B box biologically active fragment consists of SEQ ID NO:23.
55. The method of Claim 45, wherein said antibody is a monoclonal antibody.
56. The method of Claim 45, wherein said antibody is a polyclonal antibody.
57. The method of Claim 45, wherein said condition is selected from the group consisting of sepsis, allograft rejection, rheumatoid arthritis, asthma, lupus, adult respiratory distress syndrome, chronic obstructive pulmonary disease, psoriasis, pancreatitis, peritonitis, burns, myocardial ischemia, organic ischemia, reperfusion ischemia, Behcet's disease, graft versus host disease, Crohn's disease, ulcerative colitis, multiple sclerosis, and cachexia.
Applications Claiming Priority (5)
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US42784102P | 2002-11-20 | 2002-11-20 | |
US42784602P | 2002-11-20 | 2002-11-20 | |
US60/427,846 | 2002-11-20 | ||
US60/427,841 | 2002-11-20 | ||
PCT/US2003/037507 WO2004046345A2 (en) | 2002-11-20 | 2003-11-20 | Use of hmgb fragments as anti-inflammatory agents |
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CA2506328A1 true CA2506328A1 (en) | 2004-06-03 |
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EP (1) | EP1569684A4 (en) |
JP (1) | JP2006510619A (en) |
AU (1) | AU2003294488B2 (en) |
CA (1) | CA2506328A1 (en) |
NZ (1) | NZ540067A (en) |
WO (1) | WO2004046345A2 (en) |
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US6303321B1 (en) | 1999-02-11 | 2001-10-16 | North Shore-Long Island Jewish Research Institute | Methods for diagnosing sepsis |
US7304034B2 (en) | 2001-05-15 | 2007-12-04 | The Feinstein Institute For Medical Research | Use of HMGB fragments as anti-inflammatory agents |
US7696169B2 (en) | 2003-06-06 | 2010-04-13 | The Feinstein Institute For Medical Research | Inhibitors of the interaction between HMGB polypeptides and toll-like receptor 2 as anti-inflammatory agents |
WO2005025604A2 (en) * | 2003-09-10 | 2005-03-24 | The General Hospital Corporation | Use of hmgb and hmgb fragments to decrease specific immune response |
EP1668035A2 (en) | 2003-09-11 | 2006-06-14 | Critical Therapeutics, Inc. | Monoclonal antibodies against hmgb1 |
ES2306195T3 (en) * | 2004-07-02 | 2008-11-01 | Creabilis Therapeutics S.P.A. | THERAPEUTIC AGENTS FOR THE TREATMENT OF PATHOLOGIES RELATED TO HMGB1. |
WO2006012373A2 (en) * | 2004-07-20 | 2006-02-02 | Critical Therapeutics, Inc. | Combination therapies of hmgb and complement inhibitors against inflammation |
NZ553809A (en) * | 2004-09-03 | 2010-03-26 | Creabilis Therapeutics Spa | Use of polypeptides obtained through systematic mutations of single amino acids of human and non-human box-A of HMGB1 to prevent and/or antagonize pathologies induced by HMGB1 |
CN102731654A (en) * | 2004-10-22 | 2012-10-17 | 米迪缪尼有限公司 | High affinity antibodies against hmgb1 and methods of use thereof |
WO2006138429A2 (en) * | 2005-06-16 | 2006-12-28 | The Feinstein Institute For Medical Research | Antibodies against hmgb1 and fragments thereof |
EP1909834A2 (en) * | 2005-07-18 | 2008-04-16 | Critical Therapeutics, Inc. | Use of hmgb1 antagonists for the treatment of inflammatory skin conditions |
WO2007031100A1 (en) * | 2005-09-14 | 2007-03-22 | Ostini, Marco | Active immunotherapy of life-threatening systemic inflammation |
AU2006312847A1 (en) * | 2005-11-09 | 2007-05-18 | Pharmexa A/S | Therapeutic vaccines targeting HMGB1 |
CA2663300C (en) * | 2006-09-15 | 2014-10-07 | Creabilis Therapeutics S.P.A. | Polymer conjugates of box-a of hmgb1 and box-a variants of hmgb1 |
DK2066339T3 (en) | 2006-09-18 | 2014-11-03 | Univ Arkansas | Compositions and Methods for Boosting Immune Reactions |
WO2008099913A1 (en) | 2007-02-15 | 2008-08-21 | Kumamoto University | Therapeutic agent comprising antibody capable of specifically binding to human hmgb-1 as active ingredient |
BRPI0911513A2 (en) | 2008-04-30 | 2016-07-12 | Genomix Co Ltd | Methods and Agents for High-Efficiency In vivo Functional Bone Marrow Stem Cell Collection |
RU2016135937A (en) | 2009-10-28 | 2018-12-11 | Дженомикс Ко., Лтд. | MEANS FOR STIMULATING TISSUE REGENERATION BY ATTRACTING MESINCHEMIC STEM CELLS AND / OR PLURIPOTENT BONE MARROW STEM CELLS IN BLOOD |
HUE037157T2 (en) | 2010-01-21 | 2018-08-28 | Univ Arkansas | Vaccine vectors and methods of enhancing immune responses |
KR102007132B1 (en) | 2010-06-09 | 2019-08-05 | 더 보드 오브 트러스티스 오브 더 유니버시티 오브 아칸소 | Vaccine and methods to reduce campylobacter infection |
KR102113809B1 (en) | 2011-04-26 | 2020-05-21 | 가부시키가이샤 스템림 | Peptide for inducing regeneration of tissue and use thereof |
US9688733B2 (en) * | 2012-10-25 | 2017-06-27 | Genomix Co., Ltd. | Method for treating spinal cord injury using HMGB1 fragment |
JP6253589B2 (en) | 2012-10-25 | 2017-12-27 | 株式会社ジェノミックス | A novel method for treating myocardial infarction using HMGB1 fragment |
ES2865735T3 (en) | 2013-01-28 | 2021-10-15 | Evec Inc | Humanized anti-hmgb1 antibody or antigen-binding fragment thereof |
MY173328A (en) | 2013-02-14 | 2020-01-16 | Texas A & M Univ Sys | Compositions and methods of enhancing immune responses to eimeria or limiting eimeria infection |
AU2014239557B2 (en) | 2013-03-15 | 2019-01-03 | The Board Of Trustees Of The University Of Arkansas | Compositions and methods of enhancing immune responses to enteric pathogens |
TWI758288B (en) | 2016-05-03 | 2022-03-21 | 阿肯色州大學董事會 | Yeast vaccine vector including immunostimulatory and antigenic polypeptides and methods of using the same |
JP7182162B2 (en) | 2017-01-27 | 2022-12-02 | 株式会社ステムリム | Cardiomyopathy, old myocardial infarction and chronic heart failure drugs |
EP3595445A1 (en) | 2017-03-15 | 2020-01-22 | The Research Institute at Nationwide Children's Hospital | Composition and methods for disruption of bacterial biofilms without accompanying inflammation |
WO2019107530A1 (en) * | 2017-12-01 | 2019-06-06 | 株式会社ステムリム | Therapeutic agent for inflammatory bowel disease |
US20210024594A1 (en) * | 2018-02-08 | 2021-01-28 | StemRIM Inc. | Therapeutic Agent for Psoriasis |
CA3114905A1 (en) * | 2018-10-05 | 2020-04-09 | Research Institute At Nationwide Children's Hospital | Hmgb1 protein derivatives for the removal of biofilms |
CN111743890A (en) * | 2019-03-26 | 2020-10-09 | 深圳先进技术研究院 | Application of daminomycin or derivatives thereof |
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US6303321B1 (en) * | 1999-02-11 | 2001-10-16 | North Shore-Long Island Jewish Research Institute | Methods for diagnosing sepsis |
CA2296792A1 (en) * | 1999-02-26 | 2000-08-26 | Genset S.A. | Expressed sequence tags and encoded human proteins |
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- 2003-11-20 WO PCT/US2003/037507 patent/WO2004046345A2/en active IP Right Grant
- 2003-11-20 CA CA002506328A patent/CA2506328A1/en not_active Abandoned
- 2003-11-20 NZ NZ540067A patent/NZ540067A/en not_active IP Right Cessation
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AU2003294488A1 (en) | 2004-06-15 |
EP1569684A4 (en) | 2006-08-02 |
AU2003294488B2 (en) | 2007-05-24 |
WO2004046345A2 (en) | 2004-06-03 |
WO2004046345A3 (en) | 2004-12-02 |
EP1569684A2 (en) | 2005-09-07 |
JP2006510619A (en) | 2006-03-30 |
NZ540067A (en) | 2007-05-31 |
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