AU2001279526A1 - Modified peptides with increased potency - Google Patents
Modified peptides with increased potencyInfo
- Publication number
- AU2001279526A1 AU2001279526A1 AU2001279526A AU7952601A AU2001279526A1 AU 2001279526 A1 AU2001279526 A1 AU 2001279526A1 AU 2001279526 A AU2001279526 A AU 2001279526A AU 7952601 A AU7952601 A AU 7952601A AU 2001279526 A1 AU2001279526 A1 AU 2001279526A1
- Authority
- AU
- Australia
- Prior art keywords
- xaa
- leu
- ser
- lys
- glu
- 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
- 108091005601 modified peptides Proteins 0.000 title description 9
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 185
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 29
- 150000001408 amides Chemical class 0.000 claims description 27
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 21
- 238000010168 coupling process Methods 0.000 claims description 21
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 20
- -1 substituted Chemical class 0.000 claims description 15
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 14
- 101710142969 Somatoliberin Proteins 0.000 claims description 13
- 239000000095 Growth Hormone-Releasing Hormone Substances 0.000 claims description 12
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 108010070701 procolipase Proteins 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 11
- 239000012634 fragment Substances 0.000 claims description 11
- 125000001072 heteroaryl group Chemical group 0.000 claims description 11
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Description
MODIFIED BIOLOGICAL PEPTIDES WITH INCREASED POTENCY
FIELD OF THE INVENTION
The present invention is concerned with modified peptides providing increased biological potency, prolonged activity and/or increased half-life thereof. The modification is made via coupling through an amide bond with at least one conformationally rigid substituent either at the N-terminal of the peptide, the C- terminal ofthe peptide, or a free amino or carboxyl group along the peptide chain, or at a plurality of these sites.
BACKGROUND OF THE INVENTION
Most peptides are rapidly degraded in a serum medium and as a result, their metabolites may sometimes end up with little or no residual biological activity. To increase the activity of a peptide, various techniques have been proposed. One of them is to anchor a hydrophobic chain at the N- or C-terminal of the peptidic sequence or at other residues along the peptidic chain. This technique nevertheless has limitations. For example, if the peptide comprises a long peptidic chain, the fact that a small hydrophobic group is anchored to the N- or C-terminal does not necessarily result in an increased activity ofthe peptide so-modified.
For example, it is known that substituting OH for a more hydrophobic group like -NEtj at the C-terminal of a peptide sequence can result in a significantly increased specific activity. However, these results are contradicted by several
publications, such as Muranichi et al. in Pharm. Res., 1991, 8, 649-652, wliich stresses the inefficacy of a lauroyl group as a hydrophobic group at the N-terminal to increase activity. Accordingly, there does not seem to be any general rule or conclusion concerning biological potency, duration of activity and/or half life, that can be derived as a result of the addition of substituents on a peptide chain, whether at the N- or C-terminal, or on certain residues along the peptidic chain.
US 6,020,311 discloses a hydrophobic growth hormone-releasing factor (GRF) analog wherein a rigidified hydrophobic moiety is coupled to the GRF peptide via an amide bond at the N-terminal of the peptide. Such analog is said to have an improved anabolic potency with reduced dosage, and a prolonged activity. According to the teaching of this patent, however, the rigidified hydrophobic moiety always comprises a carbonyl group at one extremity, which means that an amide coupling thereof to the GRF can only take place at an amino site to form the required amide bond. The patent does not mention, suggest or imply that similar results could be obtained if the amide coupling was made at the C-terminal by replacing the carbonyl group on the rigidified hydrophobic moiety with an amino group. The patent does not further mention, suggest or imply that the amide coupling could take place elsewhere on the peptide chain.
Biochemistry 2001, 40, pages 2860 to 2869 describes an hydrophobic glucagon-like peptide-1 (GLP-1) analog wherein hexenoic acid, a rigidified hydrophobic moiety is coupled to the GLP-1 peptide at the N-terminal ofthe peptide. The results show that
this analog exhibits a decreased affinity for the GLP-1 receptor, but an in vivo
bioactivity similar to or slightly better than that of the wild type GLP-1, hypothetically because of increased resistance to serum degradation. According to
this study, the linkage of acyl chains to His1, amino-acid substitutions of Ala2, and
the addition of amino-acid sequences at the N-terminal of the molecule would be
better strategies to increase the in vivo biological activity than anchoring rigidified hydrophobic chains. However, most of these strategies involve a modification ofthe
amino-acid composition of the natural molecule, which might have negative safety
consequences for clinical applications, including the risks for immunogenicity and
side effects.
There is therefore a great need to develop peptides modified in a manner
such that their activity will be increased, thereby improving their potency, i.e, greater
resistance to serum degradation and/or from hyperagonistic properties, and/or
increasing their half-life without changing the amino-acid sequence that would be clinically safe and acceptable.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is now provided a peptide
of formula X^-Rλ wherein: - Rj is a peptide sequence which cannot be the GRF sequence when X represents a
trans-3-hexenoyl group attached at N-terminal position ofthe peptide sequence;
- each X can be identical or independent from the others and is selected from the following list constituted by conformationally rigid moieties bearing: a) a carboxy or an amino group for coupling with the peptide sequence via an amide bond at the N-terminal of the peptide sequence, the C-terminal of the peptide sequence, at an available carboxy or amino site on the peptide sequence chain, and combinations thereof; and b) a carboxy group for coupling with the peptide sequence via an ester bond at an available hydroxy site on the peptide sequence chain, and combinations thereof; wherein, n is any digit between 1 to 5;
X being defined as: i) a straight, substituted - o alkyl; ii) a branched, substituted -CJO alkyl; iii) a straight or branched, unsubstituted or substituted C C10 alkene; iv) a straight or branched, unsubstituted or substituted CrC10 alkyne; v) an unsubstituted or substituted, saturated or unsaturated C3-C10 cycloalkyl or heterocycloalkyl wherein the heteroatom is O, S or N; vi) an unsubstituted or substituted C5-C14 aryl or heteroaryl wherein the heteroatom is O, S or N; wherein the substituent in the definitions i) to vi) comprises one or more a) straight or branched - alkyl; b) straight or branched C C6 alkene;
c) straight or branched C[-C6 alkyne; d) C3-C10 cycloalkyl or heterocycloalkyl wherein at least 2 carbon atoms are optionally connected to the - Q alkyl, - Q alkene, -CK, alkyne, C3-Cι0 cycloalkyl or heterocycloalkyl, and C5-Cι4 aryl or heteroaryl; or e) C5-C14 aryl or heteroaryl wherein at least 2 carbon atoms of the aryl or heteroaryl are optionally connected to the - o alkyl, CrC10 alkene, CrC10 alkyne, C3-C10 cycloalkyl or heterocycloalkyl, and C5-C14 aryl or heteroaryl; and any isomers thereof, including cis and trans configurations, epimers, enantiomers, diastereoisomers, and racemic mixtures.
The term "aryl" includes phenyl, naphtyl and the like; the term "heterocycloalkyl" includes tetrahydrofuranyl, tetrahydrothiophanyl, tetrahydrothiopyranyl, tetrahydropyranyl and partially dehydrogenated derivatives thereof, azetidinyl, piperidinyl, pyrrolidinyl, and the like; the term "heteroaryl" comprises pyridinyl, indolyl, fiiranyl, imidazolyl, thiophanyl, pyrrolyl, quinolinyl, isoquinolinyl, pyrimidinyl, oxazolyl, thiazolyl, isothiazolyl, isooxazolyl, pyrazolyl, and the like.
The expression "conformationally rigid moiety" means an entity having limited conformational, i.e., rotational, mobility about its single bonds. Such mobility is limited, for example, by the presence of a double bond, a triple bond, or a saturated or unsaturated ring, which have little or no conformational mobility. As a result, the number of conformers or rotational isomers is reduced when compared, for
example, with the corresponding straight, unsubstituted and saturated aliphatic chain. The conformationally rigid moiety may be hydrophobic, although this is not a prerequisite.
According to a preferred embodiment of the present invention the peptide sequence is selected from the group consisting of Growth hormone releasing factor (GRF), Somatostatin, Glucagon-like peptide 1 (7-37), amide human (GLP-1), hGLP-1 (7-36) NH2 Parathyroid hormone fragments such as (PTH 1-34), Adrenocorticotropic hormone (ACTH), Osteocalcin, Calcitonin, Corticotropin releasing factor, Dynorphin
A, β-Endorphin, Big Gastrin-1, GLP-2, Luteinizing hormone-releasing hormone,
Melanocyte Stimulating Hormone (MSH), Atrial Natriuretic Peptide, Neuromedin B, Human Neuropeptide Y, Human Orexin A, Human Peptide YY, Human Secretin, Vasoactive Intestinal peptide (VIP), Antibiotic peptides (Magainin 1, Magainin 2, Cecropin A, and Cecropin B), Substance P (SP), Beta Casomorphin-5, Endomoφhin-2, Procolipase, Enterostatin, gastric inhibitory peptide, Chromogranin
A, Vasostatin I & II, Procalcitonin, ProNCT, ProCGRP, JX8 (monocyte-derived),
GCP-2, PF4, IP-10, MIG, SDF-l , GRO-α, I-TAC, RANTES, LD78, MTP-lα,
MCP-1, MCP-2, MCP-3, MCP-4, Eotaxin, MDC, and functional derivatives or fragments thereof.
DETAILED DESCRIPTION OF THE INVENTION
The amino acids are identified in the present application by the conventional three-letter abbreviations as indicated below, which are as generally
accepted in the peptide art as recommended by the IUPAC-IUB commission in biochemical nomenclature:
Alanine Ala Leucine Leu
Arginine Arg Lysine Lys
Asparagine Asn Methionine Met
Aspartic acid Asp Phenylalanine Phe
Cysteine Cys Proline Pro
Glutamic acid Glu Serine Ser
Glutamine Gin Threonine Thr
Glycine Gly Tryptophan Tip
Histidine His Tyrosine Tyr
Isoleucine He Valine Val
All the peptide sequences set out herein are written according to the generally accepted convention whereby the N-terminal amino acid is on the left and the C-terminal amino acid is on the right.
The present invention relates to the use of at least one conformationally rigid moiety, to produce a new family of peptides with enhanced pharmacological properties.
The modified peptides of the present invention are prepared according to the following general method, well known in the art of solid phase synthesis.
Conformationally rigid moieties comprising a carboxy group are used for anchoring to amino groups such as those found on the lysine side chain as well
as the N-terminus of peptides. Those comprising an amino group are used for anchoring to carboxyl groups such as those found on the aspartic or glutamic acid side chains or the C-terminus of peptides. For such cases, the anchoring reaction is preferably performed on a solid phase support (Merrifield R.B. 1963, J. Am. Chem. Soc.1963. 85, 2149 and J Am. Chem. Soc, 1964. 86, 304) using Benzotriazole-1- yl-oxy-tris (dimethylamino) phosphonium hexafluorophosphate described by Castro in the article (B. Castro et al., 1975, Tetrahedron letters, Vol. 14 :1219).
With respect to the anchoring dynamic, the preferred working temperatures are between 20°C and 60°C. The anchoring reaction time in the case of the more hydrophobic moieties, varies inversely with temperature, and varies between 0.1 and 24 hours.
Synthesis steps were carried out by solid-phase methodology on a manual peptide synthesizer using the Fmoc strategy. Fmoc amino acids were supplied by Chem Impex International Inc. Chicago and other commercial sources. Sequential Fmoc chemistry using BOP as coupling reagent was applied to the PL- Wang resin (Polymer Laboratories, catalog number : 1463-4799) for the production ofthe C-terminal carboxylic acid.
Fmoc deprotections were accomplished with piperidine 20% solution in DMF in three consecutive steps. Always under nitrogen scrubbing, a first solution of piperidine 20% was used for lmin. to remove the major part of the Fmoc
protecting groups. Then, the solution was drained, and another fresh piperidine 20% solution was introduced this time for 3min., drained again and finally another solution of piperidine 20% for lOmin. The peptide-resin was then washed 4 times successively with 50 mL of DMF under nitrogen scrubbing. After completion of the synthesis, the resin was well washed with DMF and DCM prior to drying.
Final cleavage of side chain protecting groups and peptide-resin bonds were performed using the following mixture : TFA, ethanedithiol, triisopropylsilane, thioanisole, phenol, water (92 :1.66 :1.66 :1.66 :1 :2). A final concentration of 20 mL of cleavage cocktail per gram of dried peptide-resin was used to cleave the peptide from the resin. The cleavage reaction was performed at room temperature for 2 hours. The free peptide, now in solution in the TFA cocktail, was then filtered on a coarse fritted disk funnel. The resin was then washed 3 times with pure TFA. The peptide/TFA mixture was evaporated under vacuum on a Rotary evaporator, precipitated and washed with ether prior to its dissolution in water and freeze drying to eliminate the remaining traces of solvent and scavengers.
Coupling ofthe first Fmoc-amino acid to the Wang resin We used 4-alkoxybenzyl alcohol polystyrene (Wang resin) and 2 eq of the desired Fmoc-amino acid in DMF and let both products mix together under nitrogen scrubbing for 15min at room temperature. Then 3.3 eq of pyridine and 2 eq of 2,6-dichlorobenzoylchloride were added successively and the reaction was
carried out under nitrogen scrubbing for 15-20 hours. (Seiber P., 1987, Tetrahedron Letters, Vol. 28, No. 49, pp 6147-6150). After this reaction, the reaction vessel was drained and the resin washed 4 times successively with DMF under nitrogen scrubbing. Any remaining hydroxyl groups of the resin were benzoylated with 3 eq of benzoylchloride and pyridine in DCE (dichloroethane) for 2 hours.
Coupling of each remaining amino acid on the growing peptide
For each of the following Fmoc-amino acid we dissolved 3 eq of the Fmoc-amino acid with 3 eq of BOP (Benzotriazole-1-yl-oxy-tris (dimethylamino) phosphonium hexafluorophosphate) (B. Castro et al., 1975, Tetrahedron letters, Vol. 14 :1219) in DMF, added the resulting solution to the resin in the reaction vessel, started the nitrogen scrubbing and added 6 eq of DD?EA (diisopropylethylamine) to start the coupling reaction. The coupling mixture was scrubbed under nitrogen for 60 min. in the reaction vessel; then drained from the vessel, the resin was washed 3 times successively with DMF and a qualitative ninhydrin test was performed to verify completion ofthe reaction.
The coupling of the Fmoc-L-Lys(Aloc)-OH (PerSeptive Biosystems, catalog number : GEN911209), Fmoc-L-Glu(OAl)-OH (PerSeptive Biosystems, catalog number : GEN911207) and Fmoc-L-Asρ(OAl)-OH (PerSeptive
Biosystems, catalog number : GEN911205) were carried out in the same way as for the Fmoc-amino acids as described above.
Deprotection of allylic groups
The peptide-resin (X mmol) was then introduced in DCM under nitrogen scrubbing and after 10 min. the PdCl2(PPh3)2 (X mmol x 0.05 / 0.05 eq) (palladium(II) bis-triphenylphosphine) was added to the mixture (Burger H., Kilion W., J Organometallics, 1969, 18:299). Then the (CH3CH2CH2)3SnH (X mmol x 6 / 6eq ) (tributyltinhydride) was diluted in DCM and added dropwise to the peptide- resin suspension with an addition funnel over a period of 30 minutes. The reaction was continued for another 10 minutes then the vessel was drained from the cleavage mixture and right after the peptide-resin was washed 4 times with DCM and 4 times with DMF (Dangles O., Guibe F., Balavoine G., Lavielle S., Marquet A, 1987, J. Org. Chem., 52: 4984).
Coupling ofthe conformationally rigid acids and alkylamines The coupling of the conformationally rigid acids and amines to the side chains ofthe peptide-resin was conducted under the same conditions as those ofthe Fmoc-amino acids except that for these side chain modifications we used 10 equivalents ofthe rigid moieties and coupling reagent instead of 3.
The invention is not limited to any particular peptide sequence.
Preferred peptide sequences R1 comprise those with therapeutic properties, as well as functional derivatives or fragments thereof. The therapeutic properties of such peptides which may be used in accordance with the present invention include,
without limitation, treatment of bone diseases including osteoporosis, postmenopausal osteoporosis and bone deposits, cancer treatment, regulating blood glucose, type II diabetes, treatment to to enhance mucosal regeneration in patients with intestinal diseases, treatment for diseases related to inflammatory responses, obesity treatment, treatment for autism and pervasive development disorders, hyperproliferative skin conditions, aging, altering the proliferation of peripheral blood mononuclear cells, regulation of myometrial contractility and of prostaglandin release, stimulation of ACTH release, inhibition of interleukin-8 production, stimulation of acid release, enhancement of mucosal regeneration in patients with intestinal diseases, treatment for hormone-dependent diseases and conditions including for hormone-dependent cancers, modulation of melanocyte information process, involved in pressure and volume homeostasis, regulation of exocrine and endocrine secretions, smooth muscle contraction, feeding, blood pressure, blood glucose, body temperature and cell growth, regulation of food intake and energy balance, inhibition of cancer cell growth, stimulation of pancreatic secretion, or stimulate cell growth.
Growth hormone releasing factor (GRF):
Xaa1-Xaa2-Asp-Ala-Ile-Phe-Thr-Xaa8-Ser-Tyr-Arg-Lys-Xaa13-Leu-Xaa15-Gln-Leu- Xaa18-Ala-Arg-Lys-Leu-Leu-Xaa24-Xaa25-Ile-Xaa27-Xaa2S-Arg-Gln-Gln-Gly-Glu-Ser- Asn-Gin-Glu-Arg-Gly-Ala-Arg-Ala-Arg-Leu-NH2
wherein,
Xaa, is Tyr or His; Xaa, is Val or Ala:
Xaa8 is Asn or Ser; XaaI3 is Val or He; Xaa15 is Ala or Gly; Xaa18 is Ser or Tyr; Xaa24 is Gin or His; Xaa25 is Asp or Glu; Xaa27 is Met, He or Nle; and Xaa28 is Ser or Asn.
Somatostatin:
AlarGly-Cys-Lys-Asn-Phe-Phe-T:
Cys14-Ser-Xaa12-Phe-Thr-L Tys
wherein,
Xaa12 is Tyr or Ser.
Glucagon-like peptide 1 (7-37), (amide human (hGLP-1)):
His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala- Lys-Glu-Phe-Ile-Ala-Trp-Leu-Val-Lys-Gly-Arg-Gly-OH(NH2)
Parathyroid hormone fragments (PTH 1-34):
Xaa1-Val-Ser-Glu-Xaa5-Gln-Xaa7-Met-His-Asn-Leu-Gly-Xaa13-His-Xaa15-Xaa16-
Xaa17-Xaa18-Glu-Arg-Xaa2rXaa22-Tφ-Leu-Xaa25-Xaa26-Lys-Leu-Gln-Asp-Val-His-
Xaa33-Xaa34-NH2
wherein,
Xaax is Ser or Ala;
Xaa5is Ile or Met;
Xaa7 is Leu or Phe;
Xaa13 is Lys or Glu;
Xaa15 is Leu or Arg;
Xaa16 is Asn or Ala or Ser or His;
Xaa is Ser of Thr;
Xaa18 is Met or Val or Leu;
Xaa21 is Val or met or Gin;
Xaa22 is Glu or Gin or Asp;
Xaa2S is Arg or Gin;
Xaa26 is Lys or Met;
Xaa33 is Asn or Ser; and
Xaa34 is Phe or Ala.
Adrenocorticotropic hormone (ACTH):
Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Tφ-Gly-Lys-Pro-XaaI3-Gly-Xaa15-Lys-Arg-Arg-
Pro-Xaa20-Lys-Val-Tyr-Pro-Asn-Xaa26-Xaa27-Xaa28-Xaa29-Glu-Xaa31-Xaa32-Glu-
Xaa34-Xaa35-Xaa36-Xaa37-Glu-Xaa39-NH2
wherein,
Xaa13 is Val or Met;
Xaax 5 is Lys or Arg;
Xaa20 is Val or He;
Xaa26 is Gly or Ser;
Xaa27 is Ala or Phe or Val;
Xaa28 is Glu or Gin;
Xaa29 is Asp or Asn or Glu;
Xaa31 is Ser or Thr;
5 Xaa32 is Ala or Val or Ser;
Xaa34 is Ala or Asn or Gly;
Xaa35 is Phe or Met;
Xaa36 is Pro or Gly;
Xaa37 is Leu or Val or Pro; and
o Xaa39 is Phe or Val or Leu.
Osteocalcin:
Tyr-Leu-Xaa52-Xaa53-XaaS4-Leu-Gly-Ala-Pro-Xaa59-Pro-Tyr-Pro-Asp-Pro-Leu-Glu- Pro-Xaagg-Arg-Glu-Val-Cys-Glu-Leu-Asn-Pro-Xa^y-Cys-Asp-Glu-Leu-Ala-Asp- His-Ile-Gly-Phe-Gln-Xaa89-Ala-Tyr-Xaa92-Arg-Xaa94-Tyr-Gly-Xaa97-Val-NH2 s wherein,
Xaa52 is Tyr or Asp or Asn;
Xaa53 is Gin or His or Asn;
Xaa54 is Tφ or Gly;
Xaa59 is Val or Ala;
o Xaa68 is Arg or Lys or His;
Xaa77 is Asp or Asn;
Xaa89 is Glu or Asp;
Xaa92 is Arg or Lys;
Xaa94 is Phe or He; and
Xaa97 is Pro or Thr.
Calcitonin:
Cys-Xaa86-Xaa87-Leu-Ser-Thr-Cys-Xaa92-Leu-Gly-Xaa9S-Xaa96-Xaa97-Xaa98-Xaa99- ^aa^Q-^ Q-^ ^Q2-^a Q3-- aa^ - nr- aaQQ-_ aa07"-^ a 8--?vaaQ9- a^o--^^a^^j-
wherein,
Xaa86 is Gly or Ser or Ala;
Xaa87 is Asn or Ser;
Xaa92 is Met or Val;
Xaa95 is Thr or Lys;
Xaa96 is Tyr or Leu;
Xaa97 is Thr or Ser;
Xaa98 is Gin or Lys;
Xaa99 is Asp or Glu;
Xaa100 is Phe or Leu;
Xaa101 is Asn or His;
Xaa102 is Lys or Asn;
Xaa103 is Phe or Leu;
Xaa104 is His or Gin;
Xaa106 is Phe or Tyr;
Xaa107 is Pro or Ser;
Xaa108 is Gin or Gly or Arg;
Xaa109 is Thr or He;
Xaa110 is Ala or Gly or Ser or Asp or Asn;
Xaaιn is He or Phe or Val or Thr;
Xaa113 is Val or Ala or Ser;
Xaa114 is Gly or Glu; and
XaaU5 is Ala or Thr.
Corticotropin releasing factor:
Ser-Glu-Glu-Pro-Pro-Ile-Ser-Leu-Asp-Leu-thr-Phe-His-Leu-Leu-Arg-Glu-Val-Leu- Glu-Met-Xaa101-Xaa102-Ala-Glu-Gln-Leu-Ala-Gln-Gln-Ala-His-Ser-Asn-Arg-Lys- Leu-Met-Glu-Ile-Ile-NH2 wherein,
Xaa101 is Ala or Pro; and
Xaa102 is Arg or Gly.
Dynorphin A: H-Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-Arg-Pro-Lys-Leu-Lys-Tφ-Asp-Asn-Gln-OH
β-Endorphin:
H-Tyr-Gly-Gly-Phe-Met-Tlιr-Xaa243-Glu-Xaa245-Ser-Gln-Thr-Pro-Leu-Xaa251-Tlτr- Leu-Phe-Lys-Asn-Ala-Ile-Xaa259-Lys-Asn-Xaa262-Xaa263-Lys-Lys-Gly-Xaa267-OH
wherein,
Xaa243 is Ser or Pro;
Xaa245 is Lys or Arg;
Xaa251 is Val or Met;
Xaa259 is He or Val;
Xaa262 is Ala or Thr or Ser or Val;
Xaa263 is Tyr or His; and
Xaa267 is Glu or Leu or Gin or His.
Bi Gastrin-1: pXaa59-Leu-Gly-Xaa62-Gln-Xaa64-Xaa65-Xaa66-Xaa67-Xaa68-Xaa69-Ala-Asp-Xaa72- Xaa73-Lys-Lys-Xaa76-Xaa77-Pro-Xaa79-Xaa80-Glu-Xaa82-Glu-Glu-Xaa85-Ala-Tyr-Gly- Tφ-Met-Asp-Phe-NH2 wherein,
Xaa59 is Glu or Gin;
Xaa62 is Pro or Leu;
Xaa64 is Gly or Asp;
Xaa65 is Pro or Ser;
Xaa66 is Pro or Gin;
Xaa67 is His or Gin;
Xaa68 is Leu or Met or Phe or Gin;
Xaa69 is Val or He;
Xaa72 is Pro or Leu;
Xaa73 is Ser or Ala;
Xaa76 is Gin or Glu;
Xaa77 is Gly or Arg;
Xaa79 is Tφ or Pro or Arg;
Xaa80 is Leu or Val or Met;
Xaa82 is Glu or Lys; and
Xaa85is Glu or Ala.
GLP-2:
His-Ala-Asp-Gly-Ser-Phe-Xaa152-Xaa153-Xaa154-Xaaι55-Xaa15g-XaaιS7-Xaa158-Leu-Asp- ^aajgj-- a ^g-Ai -- aajg4-_ a jg5-sk.aa2gg-ine-\.aa2g- aa^g9- irp-_\.aai7j-.Λ.aai72-.Λ.aa2 -
wherein,
Xaa152 is Ser or Thr;
Xaa153 is Asp or Ser;
Xaa154 is Glu or Asp;
Xaa155 is Met or Phe;
Xaa156 is Asn or Ser;
Xaa157 is Thr or Lys;
Xaa1S8 is He or Val or Ala;
Xaa161 is Asn or He or His or Ser;
Xaa162 is Leu or Lys;
Xaa 64 is Ala or Thr;
Xaa 6s is Arg or Gin or Lys;
Xaa g6 is Asp or Glu;
Xaa 68 is He or Leu;
Xa 69 is Asn or Asp;
Xaa 71 is Leu or He;
Xa 72 is He or Leu;
Xa 73 is Gin or Asn or His;
Xa 75 is Lys or Pro;
Xaa 76 is He or Val;
Xaa 77 is Thr or Lys; and
Xaa 78 is Asp or Glu.
Luteinizing hormone-releasing hormone:
XaarHis-Tφ-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-OH wherein,
Xa j is pGlu, 5-oxoPro or Gin.
Melanocyte Stimulating Hormone (MSH) :
Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Tφ-Gly-Lys-Pro-Val-NH2
Atrial Natriuretic Peptide:
H-Ser-Leu-Arg-Arg-Ser-Ser-Cys-Phe-Gly-Gly-Arg-Xaa135-Asp-Arg-Ile-Gly-Ala- Gln-Ser-Xaa142-Leu-Gly-Cys-Asn-Ser-Phe-Arg-Tyr-OH
wherein,
Xaa135 is Met or He; and
Xaa142 is Gly or Ser.
Neuromedin B:
H-Gly-Asn-Leu-Tφ-Ala-Thr-Gly-His-Phe-Met-NH2
Human Neuropeptide Y:
H-Tyr-Pro-Ser-Lys-Pro-Asp-Asn-Pro-Gly-Glu-Asp-Ala-Pro-Ala-Glu-asp-Met-Ala- Arg-Tyr-Tyr-Ser-Ala-Leu-Arg-His-Tyr-Ile-Asn-Leu-Ile-Thr-Arg-Gln-Arg-Tyr-NH2
Human Orexin A: pGlu-Pro-Leu-Pro-Asp-Cys-Cys-Arg-Gln-Lys-Thr-Cys-Ser-Cys-Arg-Leu-Tyr-Glu- Leu-Leu-His-Gly-Ala-Gly-Asn-His-Ala-Ala-Gly-Ile-Leu-Thr-Leu-NH2
Human Peptide YY: H-Tyr-Pro-Ile-Lys-Pro-Glu-Ala-Pro-Gly-Glu-Asp-Ala-Ser-Pro-Glu-Glu-Leu-Asn- Arg-Tyr-Tyr-Ala-Ser-Leu-Arg-His-Tyr-Leu-Asn-Leu-Val-Thr-Arg-Gln-Arg-Tyr-
NH2
Human Secretin:
H-His-Ser-Asp-Gly-Thr-Phe-Thr-Ser-Glu-Leu-Ser-Arg-Leu-Arg-Glu-Gly-Ala-Arg-
Leu-Gln-Arg-Leu-Leu-Gln-Gly-Leu-Val-NH2
Vasoactive Intestinal peptide (VIP):
H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-
Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2
Antibiotic peptides such as:
Magainin 1:
Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Gly-Lys-Phe-Gly-Lys-Ala-Phe-Val-
Gly-Glu-Ile-Met-Lys-Ser
Magainin 2:
Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val- Gly-Glu-Ile-Met-Asn-Ser
Cecropin A:
Lys-Tφ-Lys-Val-Phe-Lys-Lys-Ile-Glu-Lys-Val-Gly-Gln-Ala-Thr-Gln-Ile-
Ala-Lys Cecropin B: Lys-Tφ-Lys-Val-Phe-Lys-Lys-Ile-Glu-Lys-Met-Gly-Arg-Asn-Ile-Arg-Asn-
Gly-Ile-Val-Lys-Ala-Gly-Pro-Ala-Ile-Ala-Val-Leu-Gly-Glu-Ala-Lys-Ala-
Leu.
Substance P (SP):
Arg-Pro-Leu-Pro-Gln-Glu-Phe-Phe-Gly-Leu-Met-amide
Beta Casomorphin-5:
Tyr-Pro-Phe-Pro-Gly Endomorphin-2:
Tyr-Pro-Phe-Phe-NH2 Procolipase:
100 aa peptide (XI -Pro-X2-Pro-Arg ....)
Enterostatin:
Val-Pro-Asp-Pro-Arg
Gastrin Inhibitory Peptide:
Tyr-Ala-Glu-Gly-Thr-Phe-Ile-Ser-Asp-Tyr-Ser-Ile-Ala- Met-Asp-Lys-Ile-His-
Gln-Gln-Asp-Phe- Val-Asn-Tφ-Leu- Leu-Ala-Gln-Lys-Gly-Lys-Lys-Asn-Asp-
Tφ-Lys-His-Asn- Ile-Thr-Gln
Chromogranin A Vasostatin I Vasostatin π:
Leu Pro Val Asn Ser Pro Met Asn Lys Gly Asp Thr Glu Val Met Lys Cys He
Val Glu Val He Ser Asp Thr Leu Ser Lys Pro Ser Pro Met Pro Val Ser Gin Glu
Cys Phe Glu Thr Leu Arg Gly Asp Glu Arg He Leu Ser He Leu Arg His Gin Asn
Leu Leu Lys Glu Leu Gin Asp Leu Ala Leu Gin Gly Ala Lys Glu Arg Ala His
Gin Gin Lys Lys His Ser Gly Phe Glu Asp Glu Leu Ser Glu Val Leu Glu Asn
Gln Ser Ser Gin Ala Glu Leu Lys Glu Ala Val Glu Glu Pro Ser Ser Lys Asp Val Met Glu Procalcitonin ProNCT ProCGRP
Chemokine family: CXC-group: IL8(monocyte-derived):
SerAlaLysGluLeuArgCysGlnCys...
GCP-2:
GlyProValSerAlaValLeuThrGluLeuArgCysThrCys...
PF4:
GluAlaGluGluAspGlyAspLeuGlnCysLeuCys... IP-10:
ValProLeuSerArgThrValArgCCysThrCys...
MIG:
ThrProValValArgLysGlyArgCysSerCys...
SDF-lα:
LysProValSerLeuSerTyrArgCysProCys...
GRO-α: AlaProLeuAlaTlirGluLeuArgCysGlnCys ...
I-TAC:
PheProMetPheLysLysGlyArgCysLeuCys... CC-group:
RANTES:
SerProTyrSerSerAspThrThrProCys...
LD78:
AlaProLeuAlaAlaAspThrProThrAlaCys...
MIP-l :
AlaProMetGlySerAspProProThrAlaCys... MCP-1:
GlnProAspAlalleAsnAlaProValThrCys...
MCP-2: GlnProSerAspValSerlleProIleThrCys...
MCP-3: GlnProValGlylleTAsnSeerThrThrCys...
MCP-4:
GlnProAspAlaLeuAspValProSerTlirCys... Eotaxin:
GlyProAlaSerValProThrThrCys... MDC:
GlyProTyrGlyAlaAsnMetGluAspSerValCys... and functional derivatives or fragments thereof.
The complete definition ofthe previously listed sequences are known inter alia from Mentiein, R (1999) Regul. Pept. 85:9-24 and from De Meester, I. Et al. (2000) Adv
ExpMed Biol. 477:67-87. Those documents are incoφorated by reference to the present application.
In a more preferred embodiment, the peptide is substituted with one or more conformationally rigid moieties. Preferred structures of the corhOrmationally rigid moieties comprise those with a double bond, a triple bond or a saturated or unsaturated ring.
The following is a brief list of the formula of preferred conformationally rigid moieties, identified as Formula 1 to 63, which are suitable for the puφoses of the present invention.
Among the preferred modified peptides according to the present invention, are those wherein the peptide sequence is the sequence of a natural peptide.
25
26 27
CH3CH2 C^≡C CH2 COOH CH3CH2" -CH, - HP
30 31
38 39
42 43
60 61
63 wherein, R is hydrogen, CH3 or CH2CH3
A preferred embodiment of the present invention is constituted by peptides wherein the peptide sequence is Somatostatin and at least one conformationally rigid moiety is coupled with said somatostatin peptide sequence via an amide bond at different positions as follows:
Position conformationally rigid moieties
10
An another preferred embodiment of the present invention is constituted by those peptides wherein the peptide sequence is PTH 1-34 and at least one conformationally rigid moiety is coupled with said PTH 1-34 peptide sequence via an amide bond at different positions as follows: Position conformationally rigid moieties
A further preferred embodiment of the present invention is constituted by those peptides wherein the peptide sequence is GLP-1 and at least one
conformationally rigid moiety is coupled with said GLP-1 peptide sequence via an amide bond at different positions as follows:
Position conformationally rigid moieties
13
Position conformationally rigid moieties
Also preferred among the modified peptides according to the invention are those peptides wherein;
- the peptide sequence is GLP-2 and at least one conformationally rigid moiety is coupled with said GLP-2 peptide sequence via an amide or ester bond at different positions ofthe peptide sequence;
- the peptide sequence is Enterostatin and at least one conformationally rigid moiety is coupled with said Enterostatin peptide sequence via an amide bond at different positions ofthe peptide. sequence; - the peptide sequence is NPY and at least one conformationally rigid moiety is coupled with said NPY peptide sequence via an amide or ester bond at different positions ofthe peptide sequence;
- the peptide sequence is NPYY and at least one conformationally rigid moiety is coupled with said NPYY peptide sequence via an amide or ester bond at different positions ofthe peptide sequence;
- the peptide sequence is Secretin and at least one conformationally rigid moiety is coupled with said Secretin peptide sequence via an amide or ester bond at different positions ofthe peptide sequence;
- the peptide sequence is Vasoactive Intestinal Peptide and at least one conformationally rigid moiety is coupled with said Vasoactive Intestinal
Peptide sequence via an amide or ester bond at different positions of the peptide sequence;
- the peptide sequence is Gastrin Inhibitory Peptide and at least one conformationally rigid moieties is coupled with said Gastrin Inhibitory Peptide sequence via an amide or ester bond at different positions of the peptide sequence;
5 - the peptide sequence is Vasostatin H and at least one conformationally rigid moiety is coupled with said Vasostatin H peptide sequence via an amide or ester bond at different positions ofthe peptide sequence;
- the peptide sequence is RANTES and at least one conformationally rigid moiety is coupled with said RANTES peptide sequence via an amide or o ester bond at different positions of the peptide sequence;
- the peptide sequence is Eotaxin and at least one conformationally rigid moiety is coupled with said Eotaxin peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
5 In the modified peptites of the invention, the conformationally rigid moiety is preferably coupled with said peptide sequence via an amide bond at the N- terminal.
The modified peptides according to the invention, wherein the o conformationally rigid moiety is the formula referenced 60 in the description, are of a particular interest.
The modified peptides of the present invention can be a<iministered in various ways, such as for example, intravenously, subcutaneously, intradermally,
transdermally, intraperitoneally, orally, or topically. The modified peptides of the present invention can also be administered by inhalation, when in a powder form or aerosol form. Furthermore, pharmaceutically acceptable carriers for delivery of modified peptides of the present invention include, without limitation, liposome, nanosome, patch, implant or any delivery devices.
In addition to the carboxy and amino groups present at the C- and N- terminals respectively ofthe peptide, other carboxy and amino sites can be available on the peptide chain. For example, if the peptide chain comprises amino acids provided with a carboxylic acid side chain such as aspartic acid and glutamic acid, additional carboxy sites will therefore be available on the chain for amidation. Should the peptide chain comprise amino acids with a carboxamide side chain such as asparagine and glutamine, these also provide additional carboxy groups for amidation by a conformationally rigid moiety, provided that they are accessed synthetically via the corresponding aspartic and glutamic acids. Further, if the peptide comprises amino acids provided with a basic side chain such as arginine, histidine or lysine, additional amino sites will then be available on the chain for amidation by a conformationally rigid moiety. The peptide chain may also include both acidic and basic amino acids, meaning that the conformationally rigid substituents could be coupled to the peptide chain via the N-terminal, the C-terminal, a carboxy site on the peptide chain, an amino site on the peptide chain, or a plurality of these sites.
The present invention will be more readily understood by referring to the following examples which are given to illustrate the invention rather than to limit its scope.
EXAMPLE 1 Synthesis of GLP-1 analogs
In accordance with the present invention, at least one of the following conformationally rigid moiety is coupled with the GLP-1 peptide sequence via an amide bond at different positions as follows.
Position conformationally rigid moieties
13 hGLP-l (7-37) analogs synthesis hGLP-1 (7-37) derivatives modified at the amino terminus with rigid hydrophobic moieties were synthesized using Fmoc chemistry (1), on the Symphony apparatus (Rainin Instrument Co., Inc.). Fmoc-Gly-Wang resin (0.70mmole/g) and five
equivalents of reagents (lOOμm scale, amino acids concentration of 200mM), were
used with a time coupling of 30 minutes. The reactions have been monitored by the Kaiser test. The three conformationally rigid moieties introduced at the N-terminus ofthe hGLP-1 (7-37) are:
- Peptide # 1 = (O-Tolylacetic acid-His7)-hGLP-l (7-37) [O-Tolylacetic acid
(13) (10 equivalents per coupling; coupling time 45 min)]
- Peptide # 2 = ((+,-)-cw-2-Ethylcyclopropylacetic acid -His7)-hGLP-l (7- 37) [(+,-)-cw-2-Ethylcyclopropylacetic acid (60) (7.5 equivalents per coupling: coupling time 60 min)].
The peptides were cleaved using a TFA cocktail (92% TFA, 2% ethanedithiol, 2% thioanisole, 2% triisopropylsilane, 2% water, 2% (w/v) phenol) for 2 hours. All the analogs have been purified by reverse-phase HPLC. They have been analyzed by analytical HPLC and by MS (MALDI-TOF).
The synthesis of GLP-1 analogs is well known to the person skilled in the art and is further illustrated by the general references Fmoc Solid Phase Peptide Synthesis. A Practical Approach (2000). Chan, W.C. and White, P.D., Oxford University Press, New York, USA, 346p which are incoφorated by reference.
Biological assess of GLP-1 analogs
Materials & Methods
Oral Glucose Tolerance Test (OGTT)
Six-week old female CD1 mice (Charles River) were fasted for at least 16 hours. Mice were given 1.5 mg of glucose per gram of body weight orally in water through a gastric gavage tube at t = o min and blood was collected from a tail vein at t = 0, 10, 20, 30, 60, 90 and 120 min for measurement of blood glucose using a 5 glucose meter (Lifescan). Peptides or vehicle were injected subcutaneously 5 min prior to the glucose administration. Data were expressed as the area under the curve, calculated from the change (delta) in blood glucose for each time, using the trapezoidal rule. Therefore, the data represent the integrated increase in blood glucose over a 120 min period following glucose administration. Data presented 0 are the mean ± SEM of 4 to 11 animals per group.
Test articles
All peptides, including wild-type GLP-1 (7-37), were tested in the OGTT test at 3 different concentrations: 1, 5 and 10 ug per mouse, h a first set of experiments 5 (study A), peptide 3 was tested in comparison with vehicle and hGLP-1 (7-37). In a second set of experiments (study B), peptides 1 and 2 were tested in comparison with vehicle and hGLP-1 (7-37).
wt GLPl: hGLP(7-37) o Peptide #1 : (O-Tolylacetic acid-His7)-hGLP-l (7-37)
Peptide #2: ((+,-)-cis-2-Ethylcyclopropylacetic acid-His7)-hGLP-l (7-37) Peptide #3: (Hexenoyl-trans-3-His7)-hGLP-l (7-37)
Results and conclusions 5
Results are shown in Fig I(study A) and Fig.II (study B)
In studies A and B, administration of vehicle resulted in a similar integrated response in glucose levels (study A: 380 ± 57 vs study B: 309 + 68 mMxl20 min), o illustrating the validity and reproducibility ofthe methodology. Although wt GLP- 1 induced a dose-related decrease in the glucose response, this peptide was not able to completely suppress the glucose response at any dose, which might be
inteφreted as a limitation in its potential clinical usefulness. In contrast, peptide 3 (study A, Fig.l) was able to completely abolish the glucose response, but only at the 10 ug dose (9 + 26 mMxl20 min). Suφrisingly, peptide 2 (study B, Fig.2) was even more potent than peptide 3, being able to totally prevent the glucose response both at the 5 ug and the 10 ug doses (5 ug: -17 + 67 mMxl20 min; 10 ug: 61 ± 64 mMxl20 min). In conclusion, the GLP-1 analog corresponding to peptide 2 was identified with marked increased biological potency over the wild type GLP-1 (7- 37), because of this increased potency, this peptide may have clinical usefulness in treating states of insulin resistance associated with pathologies such as type II diabetes.
Position conformationally rigid moieties
11
EXAMPLE 2 PTH 1-34 analogs
In accordance with the present invention, at least one of the following conformationally rigid moiety is coupled with the PTH 1-34 peptide sequence via an amide bond at different positions as follows.
Position conformationally rigid moieties
EXAMPLE 3
Somatostatin analogs h accordance with the present invention, at least one of the following conformationally rigid moiety is coupled with the somatostatin peptide sequence via an amide bonds at different position as follows.
Position conformationally rigid moieties
10
While the invention has been described in connection with specific l o embodiments thereof, it will be understood that it is capable of further modifications, and this application is intended to cover any variations, uses or adaptations of the invention following, in general, the principles of the invention, and including such
departures from the present description as come within known or customary practice within the art to which the invention pertains, and as may be applied to the essential features hereinbefore set forth, and as follows in the scope ofthe appended claims.
Claims (25)
1. A peptide of formula wherein:
- Rj is a peptide sequence, a functional analog thereof or a fragment thereof; each X can be identical or independent from the others and is selected from the following list constituted by conformationally rigid moieties: i) a straight, substituted CrC10 alkyl; ii) a branched, substituted Cj- o alkyl; iii) a straight or branched, unsubstituted or substituted -CJQ alkene; iv) a straight or branched, unsubstituted or substituted -CJQ alkyne; v) an unsubstituted or substituted, saturated or unsaturated C3-C10 cycloalkyl or heterocycloalkyl wherein the heteroatom is O, S or N; vi) an unsubstituted or substituted C5-C14 aryl or heteroaryl wherein the heteroatom is O, S or N; wherein the substituent in the definitions i) to vi) comprises one or more a) straight or branched - alkyl; b) straight or branched - alkene; c) straight or branched -Cg alkyne; d) C3-C10 cycloalkyl or heterocycloalkyl wherein at least 2 carbon atoms are optionally connected to the CrC10 alkyl, CrC10 alkene, CrC10 alkyne, C3-C10 cycloalkyl or heterocycloalkyl, and C5-C14 aryl or heteroaryl; or e) C5-C14 aryl or heteroaryl wherein at least 2 carbon atoms of the aryl or heteroaryl are optionally connected to the CrC10 alkyl, C^C^ alkene, CrC10 alkyne, C3-C10 cycloalkyl or heterocycloalkyl, and C5-C14 aryl or heteroaryl, said group X also comprising at least one group selected from:
α) a carboxy or an amino group for coupling with the peptide sequence via an
amide bond at the N-terminal of the peptide sequence, the C-terminal of the peptide sequence, at an available carboxy or amino site on the peptide sequence chain, and combinations thereof; and
β) a carboxy group for coupling with the peptide sequence via an ester bond at
an available hydroxy site on the peptide sequence chain, and combinations thereof; wherein, n is any digit between 1 to 5; and any isomers thereof, including cis and trans configurations, epimers, enantiomers, diastereoisomers, and racemic mixtures, the peptides defined in claim 1 of U.S. Patent No. 6,020,311 being excluded.
2. A peptide as claimed in claim 1 wherein the peptide sequence is selected from the group consisting of Growth hormone releasing factor (GRF), Somatostatin, Glucagon-like peptide 1 (7-37), amide human (GLP-1) hGLP-1 (7-36) NH2, Parathyroid hormone fragments (PTH 1-34), Adrenocorticotropic hormone (ACTH),
Osteocalcin, Calcitonin, Corticotropin releasing factor, Dynoφhin A, β-Endoφhin,
Big Gastrin- 1, GLP-2, Luteinizing hormone-releasing hormone, Melanocyte Stimulating Hormone (MSH), Atrial Natriuretic Peptide, Neuromedin B, Human Neuropeptide Y, Human Orexin A, Human Peptide YY, Human Secretin, Vasoactive Intestinal peptide (V P), Antibiotic peptides (Magainin 1, Magainin 2, Cecropin A, and Cecropin B), Substance P (SP), Beta Casomoφhin-5, Endomoφhin-2, Procolipase, Enterostatin, gastric inhibitory peptide, Chromogranin A, Vasostatin I & π, Procalcitonin, ProNCT, CGRP (Calcitonin Gene Related Peptide), IL8
(monocyte-derived), GCP-2, PF4, IP-10, MIG, SDF-lα, GRO-α, I-TAC, RANTES,
LD78, MlP-lα, MCP-1, MCP-2, MCP-3, MCP-4, Eotaxin, MDC, and functional
analogs and derivatives or fragments thereof.
3. A peptide as claimed in claim 1 or 2 wherein the conformationally rigid moiety comprises at least a double bond, a triple bond or a saturated or unsaturated ring.
4. A peptide as claimed in any one of claims 1 to 3 wherein the conformationally rigid moiety comprises one or more of the structures of Formula 1 to 63 as-defined in the description.
5. A peptide as claimed in any one of claims 1 to 4 wherein the peptide sequence is selected from the group consisting of:
Growth hormone releasing factor (GRF):
Xaaj-Xaaj-Asp-Ala-Ile-Phe-Thr-Xaag-Ser-Tyr-Arg-Lys-Xaa^-Leu-Xaa^-Gln-Leu-
Xaa18-Ala-Arg-Lys-Leu-Leu-Xaa24-Xaa25-Ile-Xaa27-Xaa28-Arg-Gln-Gln-Gly-Glu-Ser-
Asn-Gln-Glu-Arg-Gly-Ala-Arg-Ala-Arg-Leu-NH2
• wherein,
Xaa, is Tyr or His; Xaa2 is Val or Ala; Xaa8 is Asn or Ser; Xaa13 is Val or He; XaaI5 is Ala or Gly; Xaals is Ser or Tyr; Xaa^ is Gin or His; Xaa25 is Asp or Glu; Xaa27 is Met, He or Nle; and Xaa28 is Ser or Asn;
Somatostatin:
AkvGly-Cys-Lys-Asn-Phe-Phe-T
Cys14-Ser-Xaa12-Phe-Thr-L rys
wherein,
Xaa12 is Tyr or Ser;
Glucagon-like peptide 1 (7-37), (amide human (hGLP-1)):
His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala- Lys-Glu-Phe-Ile-Ala-Tφ-Leu-Val-Lys-Gly-Arg-Gly-OH(NH2)
Parathyroid hormone fragments (PTH 1-34):
Xaaj-Val-Ser-Glu-Xaaj-Gln-Xaay-Met-His-Asn-Leu-Gly-Xaa^-His-Xaajs-Xaau-
Xaa17-Xaa18-Glu-Arg-Xaa21-Xaa22-Tφ-Leu-Xaa25-Xaa26-Lys-Leu-Gln-Asp-Val-His-
Xaa33-Xaa34-NH2
wherein, X aj is Ser or Ala;
Xaa5is Ile or Met;
Xaa7 is Leu or Phe;
Xaa13 is Lys or Glu;
Xaa15 is Leu or Arg;
Xaa16 is Asn or Ala or Ser or His;
Xaa17 is Ser of Thr;
Xaa18 is Met or Val or Leu;
Xaa21 is Val or met or Gin;
Xaa22 is Glu or Gin or Asp;
Xaa25 is Arg or Gin;
Xaa26 is Lys or Met;
Xaa33 is Asn or Ser; and
Xaa34 is Phe or Ala;
Adrenocorticotropic hormone (ACTH):
Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Tφ-Gly-Lys-Pro-Xaa13-Gly-Xaa15-Lys-Arg-Arg-
Pro-Xaa2o-Lys-Val-Tyr-Pro-Asn-Xaa26-Xaa27-Xaa28-Xaa29-Glu-Xaa31-Xaa32-Glu-
Xaa34-Xaa35-Xaa36-Xaa37-Glu-Xaa39-NH2 wherein,
Xaa13 is Val or Met;
Xaa15is Lys or Arg; Xaa20 is Val or He;
Xaa26 is Gly or Ser;
Xaa27 is Ala or Phe or Val;
Xaa28 is Glu or Gin;
Xaa29 is Asp or Asn or Glu;
Xaa31 is Ser or Thr;
Xaa32 is Ala or Val or Ser;
Xaa34 is Ala or Asn or Gly;
Xaa35 is Phe or Met;
Xaa36 is Pro or Gly;
Xaa37 is Leu or Val or Pro; and
Xaa39 is Phe or Val or Leu;
Osteocalcin:
Tyr-Leu-Xaa52-Xaa53-Xaa54-Leu-Gly-Ala-Pro-XaaS9-Pro-Tyr-Pro-Asp-Pro-Leu-Glu- Pro-Xaa68-Arg-Glu-Val-Cys-Glu-Leu-Asn-Pro-Xaa77-Cys-Asp-Glu-Leu-Ala-Asp- His-Ile-Gly-Phe-Gln-Xaa89-Ala-Tyr-Xaa92-Arg-Xaa94-Tyr-Gly-Xaa97-Val-NH2
wherein,
Xaa52 is Tyr or Asp or Asn;
Xaa53 is Gin or His or Asn;
Xaa54 is Trp or Gly;
Xaa59 is Val or Ala; Xaa68 is Arg or Lys or His;
Xaa77 is Asp or Asn;
Xaa89 is Glu or Asp;
Xaa92 is Arg or Lys;
Xaa94 is Phe or He; and
Xaa97 is Pro or Thr;
Calcitonin:
Cys-Xaa86-Xaa87-Leu-Ser-Thr-Cys-Xaa92-Leu-Gly-Xaa95-Xaa96-Xaa97-Xaa98-Xaa99- ^aajQ-\.aajQ2-s.aa^Q2-- aajQ-- aajQ4- inr- aajQg- a jQ-^- aa^Qg- aajQg- aajjQ-Λ-aajjj-
wherein,
Xaa86 is Gly or Ser or Ala;
Xaa87 is Asn or Ser;
Xaa92 is Met or Val;
Xaa95 is Thr or Lys;
Xaa96 is Tyr or Leu;
Xaa97 is Thr or Ser;
Xaa98 is Gin or Lys;
Xaa99 is Asp or Glu;
Xaa100 is Phe or Leu;
Xaa101 is Asn or His; Xaa102 is Lys or Asn;
Xaa103 is Phe or Leu;
Xaa104 is His or Gin;
Xaa106 is Phe or Tyr;
Xaa107 is Pro or Ser;
Xaa108 is Gin or Gly or Arg;
Xaa109 is Thr or He;
Xaa110 is Ala or Gly or Ser or Asp or Asn;
Xaam is He or Phe or Val or Thr;
Xaa113 is Val or Ala or Ser;
Xaa is Gly or Glu; and
Xaa115 is Ala or Thr;
Corticotropin releasing factor:
Ser-Glu-Glu-Pro-Pro-Ile-Ser-Leu-Asp-Leu-thr-Phe-His-Leu-Leu-Arg-Glu-Val-Leu- Glu-Met-XaaI01-XaaI02-Ala-Glu-Gin-Leu-Ala-Gln-Gln-Ala-His-Ser-Asn-Arg-Lys- Leu-Met-Glu-Ile-Ile-NH2 wherein, .
Xaa101 is Ala or Pro; and
Xaa102 is Arg or Gly;
Dynorphin A: H-Tyr-Gly-Gly-Phe-Leu-Arg-Arg-Ile-Arg-Pro-Lys-Leu-Lys-Tφ-Asp-Asn-Gln-OH β-Endorphin:
H-Tyr-Gly-Gly-Phe-Met-Thr-Xaa243-Glu-Xaa245-Ser-Gm-Thr-Pro-Leu-Xaa251-Thr-
Leu-Phe-Lys-Asn-Ala-Ile-Xaa259-Lys-Asn-Xaa262-Xaa263-Lys-Lys-Gly-Xaa267-OH
wherein,
Xaa243 is Ser or Pro;
Xaa245 is Lys or Arg;
Xaa251 is Val or Met;
Xaa259 is He or Val;
Xaa262 is Ala or Thr or Ser or Val;
Xaa263 is Tyr or His; and
Xaa267 is Glu or Leu or Gin or His;
Big Gastrin-1: pXaajg-Leu-Gly-Xaa^-Gln-Xaa^-Xaags-Xaage-Xaa^-Xaagg-Xaagg-Ala-Asp-Xa^-
Xaa73-Lys-Lys-Xaa76-Xaa77-Pro-Xaa79-Xaa80-Glu-Xaa82-Glu-Glu-Xaa85-Ala-Tyr-Gly-
Tφ-Met-Asp-Phe-NH2 wherein,
Xaa59 is Glu or Gin;
Xaa62is Pro or Leu;
Xaa64 is Gly or Asp;
Xaa65 is Pro or Ser; ' Xaa66 is Pro or Gin;
Xaa67 is His or Gin;
Xaa6S is Leu or Met or Phe or Gin;
Xaa69 is Val or He;
Xaa72 is Pro or Leu;
Xaa73 is Ser or Ala;
Xaa76 is Gin or Glu;
Xaa77 is Gly or Arg;
Xaa79 is Tφ or Pro or Arg;
Xaa80 is Leu or Val or Met;
Xaa82 is Glu or Lys; and
Xaa85 is Glu or Ala;
GLP-2:
His-Ala-Asp-Gly-Ser-Phe-Xaaι52-Xaa153-Xaa154-Xaai55-Xaa156-Xaa157-Xaa158-Leu-Asp- Xaa1g1-Xaa162-Ala-Xaa1g4-Xaa1gS-Xaa1gg-Phe-Xaa168-Xaa169-Tφ-Xaa171-Xaa172-Xaa173- 1 nr--Λ.aaj75--Λ.aa^ g-_ .a j77--Λ. ^ g; wherein,
Xaa152 is Ser or Thr;
Xaa153 is Asp or Ser;
Xaa154 is Glu or Asp;
Xaa155 is Met or Phe; Xaa156 is Asn or Ser;
Xaa157 is Thr or Lys;
Xaa158 is He or Val or Ala;
Xaa161 is Asn or He or His or Ser;
.Xaa162 is Leu or Lys;
Xaa164 is Ala or Thr;
Xaaj65 is Arg or Gin or Lys;
Xaa166 is Asp or Glu;
Xaa168 is He or Leu;
Xaa169 is Asn or Asp;
Xaa171 is Leu or He;
Xaa172is He or Leu;
Xaa173 is Gin or Asn or His;
Xaa175 is Lys or Pro;
Xaa176 is He or Val;
Xaa177 is Thr or Lys; and
Xaa178 is Asp or Glu;
Luteinizing hormone-releasing hormone:
XaarHis-Tφ-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-OH wherein,
Xa j is pGlu, 5-oxoPro or Gin. Melanocyte Stimulating Hormone (MSH):
Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Tφ-Gly-Lys-Pro-Val-NH2
Atrial Natriuretic Peptide:
H-Ser-Leu-Arg-Arg-Ser-Ser-Cys-Phe-Gly-Gly-Arg-Xaa]35-Asp-Arg-Ile-Gly-Ala-
Gln-Ser-Xaa142-Leu-Gly-Cys-Asn-Ser-Phe-Arg-Tyr-OH
wherein,
Xaa135 is Met or He; and
Xaa142 is Gly or Ser;
Neuromedin B:
H-Gly-Asn-Leu-Tφ-Ala-Tlιr-Gly-His-Phe-Met-NH2
Human Neuropeptide Y:
H-Tyr-Pro-Ser-Lys-Pro-Asp-Asn-Pro-Gly-Glu-Asp-Ala-Pro-Ala-Glu-asp-Met-Ala- Arg-Tyr-Tyr-Ser-Ala-Leu-Arg-His-Tyr-Ile-Asn-Leu-Ile-Thr-Arg-Gln-Arg-Tyr-NH2
Human Orexin A: pGlu-Pro-Leu-Pro-Asp-Cys-Cys-Arg-Gln-Lys-Thr-Cys-Ser-Cys-Arg-Leu-Tyr-Glu- Leu-Leu-His-Gly-Ala-Gly-Asn-His-Ala-Ala-Gly-Ile-Leu-Thr-Leu-NH2 Human Peptide YY:
H-Tyr-Pro-Ile-Lys-Pro-Glu-Ala-Pro-Gly-Glu-Asp-Ala-Ser-Pro-Glu-Glu-Leu-Asn- Arg-Tyr-Tyr-Ala-Ser-Leu-Arg-His-Tyr-Leu-Asn-Leu-Val-Thr-Arg-Gln-Arg-Tyr-
NH2
Human Secretin:
H-His-Ser-Asp-Gly-Thr-Phe-Thr-Ser-Glu-Leu-Ser-Arg-Leu-Arg-Glu-Gly-Ala-Arg- Leu-Gln-Arg-Leu-Leu-Gln-Gly-Leu-Val-NH2
Vasoactive Intestinal peptide (VIP):
H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala- Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2
Antibiotic peptides such as: Magainin 1:
Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Gly-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-
Glu-Ile-Met-Lys-Ser
Magainin 2:
Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-
Glu-Ile-Met-Asn-Ser
Cecropin A:
Lys-Tφ-Lys-Val-Phe-Lys-Lys-Ile-Glu-Lys-Val-Gly-Gln-Ala-Thr-Gln-Ile-Ala-
Lys , Cecropin B:
Lys-Tφ-Lys-Val-Phe-Lys-Lys-Ile-Glu-Lys-Met-Gly-Arg-Asn-Ile-Arg-Asn-Gly- Ile-Val-Lys-Ala-Gly-Pro-Ala-Ile-Ala-Val-Leu-Gly-Glu-Ala-Lys-Ala-Leu .
Substance P (SP):
Arg-Pro-Leu-Pro-Gln-Glu-Phe-Phe-Gly-Leu-Met-amide
Beta Casomorphin-5:
Tyr-Pro-Phe-Pro-Gly
Endomorphin-2 :
Tyr-Pro-Phe-Phe-NH2
Procolipase:
100 aa peptide (Xl-Pro-X2-Pro-Arg....)
Enterostatin:
Val-Pro-Asp-Pro-Arg
Gastrin Inhibitory Peptide:
Tyr-Ala-Glu-Gly-Thr-Phe-Ile-Ser-Asp-Tyr-Ser-Ile-Ala- Met-Asp-Lys-Ile-His-Gln-
Gln-Asp-Phe- Val-Asn-Tφ-Leu- Leu-Ala-Gln-Lys-Gly-Lys-Lys-Asn-Asp-Tφ-Lys-
His-Asn- Ile-Thr-Gln
Chromogranin A
Vasostatin I
Vasostatin II:
Leu Pro Val Asn Ser Pro Met Asn Lys Gly Asp Thr Glu Val Met Lys Cys He Val
Glu Val He Ser Asp Thr Leu Ser Lys Pro Ser Pro Met Pro Val Ser Gin Glu Cys Phe
Glu Thr Leu Arg Gly Asp Glu Arg He Leu Ser He Leu Arg His Gin Asn Leu Leu Lys Glu Leu Gin Asp Leu Ala Leu Gin Gly Ala Lys Glu Arg Ala His Gin Gin Lys
Lys His Ser Gly Phe Glu Asp Glu Leu Ser Glu Val Leu Glu Asn Gin Ser Ser Gin
Ala Glu Leu Lys Glu Ala Val Glu Glu Pro Ser Ser Lys Asp Val Met Glu
Procalcitonin
ProNCT
ProCGRP
Chemokine family: CXC-group:
IL8(monocy te-derived) : SerAlaLysGluLeuArgCysGlnCys...
GCP-2: GlyProValSerAlaValLeuThrGluLeuArgCysThrCys...
PF4: GluAlaGluGluAspGlyAspLeuGlnCysLeuCys ...
IP-10: ValProLeuSerArgThrValArgCCysThrCys...
MIG:
ThrProValValArgLysGlyArgCysSerCys...
SDF-lα: LysProValSerLeuSerTyrArgCysProCys...
GRO-α: AlaProLeuAlaThrGluLeuArgCysGlnCys...
I-TAC: PheProMetPheLysLysGlyArgCysLeuCys... CC-group:
RANTES: SerProTyrSerSerAspThrThrProCys...
LD78:
AlaProLeuAlaAlaAspThrProThrAlaCys...
MlP-lα: AlaProMetGlySerAspProProTlirAlaCys...
MCP-1:
GlnProAspAlalleAsnAlaProValThrCys...
MCP-2: GlnProSerAspValSerlleProIleThrCys...
MCP-3:
GlnProValGlylleTAsnSeerThrThrCys... MCP-4:
GlnProAspAlaLeuAspValProSerThrCys...
Eotaxin:
GlyProAlaSerValProThrThrCys... MDC:
GlyProTyrGlyAlaAsnMetGluAspSerValCys...
and functional analogs and derivatives or fragments thereof.
6. A peptide according to claim 5 wherein the peptide sequence is the sequence of a natural peptide and functional analog or a fragment thereof or a clinically safe and acceptable derivative or analog thereof.
7. A peptide as claimed in claim 1 wherein the peptide sequence is Somatostatin and at least one conformationally rigid moiety is coupled with said somatostatin peptide sequence via an amide bond at different positions as follows:
Position conformationally rigid moieties
10
8. A peptide as claimed in claim 1 wherein the peptide sequence is PTH 1-34 and at least one conformationally rigid moiety is coupled with said PTH 1-34 peptide sequence via an amide bond at different positions as follows: Position conformationally rigid moieties
9. A peptide as claimed in claim 1 wherein said peptide sequence is GLP-1 and at least one conformationally rigid moiety is coupled with said GLP-1 peptide sequence via an amide bond at different positions as follows: Position conformationally rigid moieties
13
Position conformationally rigid moieties
10. A peptide as claimed in claim 1 wherein said peptide sequence is GLP-2 and at least one conformationally rigid moiety is coupled with said GLP-2 peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
11. A peptide as claimed in claim 1 wherein said peptide sequence is Enterostatin and at least one conformationally rigid moiety is coupled with said Enterostatin peptide sequence via an amide bond at different positions ofthe peptide sequence.
12. A peptide as claimed in claim 1 wherein said peptide sequence is NPY and at least one conformationally rigid moiety is coupled with said NPY peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
13. A peptide as claimed in claim 1 wherein said peptide sequence is NPYY and at least one conformationally rigid moiety is coupled with said NPYY peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
14. A peptide as claimed in claim 1 wherein said peptide sequence is Secretin and at least one conformationally rigid moiety is coupled with said Secretin peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
15. A peptide as claimed in claim 1 wherein said peptide sequence is Vasoactive Intestinal Peptide and at least one conformationally rigid moiety is coupled with said Vasoactive Intestinal Peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
16. A peptide as claimed in claim 1 wherein said peptide sequence is Gastrin inhibitory Peptide and at least one conformationally rigid moiety is coupled with said Gastrin Inhibitory Peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
17. A peptide as claimed in claim 1 wherein said peptide sequence is Vasostatin H and at least one conformationally rigid moiety- is coupled with said Vasostatin H peptide sequence via an amide or ester bond at different positions of the peptide sequence.
18. A peptide as claimed in claim 1 wherein said peptide sequence is RANTES and at least one conformationally rigid moiety is coupled with said RANTES peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
19. A peptide as claimed in claim 1 wherein said peptide sequence is Eotaxin and at least one conformationally rigid moiety is coupled with said Eotaxin peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
20. A peptide as in any one of claims 1 to 18, wherein said conformationally rigid moiety is coupled with said peptide sequence via an amide or ester bond at the N-terminal.
21. A peptide according to any one of claims 8 to 19, wherein the conformationally rigid moiety has the formula 60 referenced in the description.
22. A peptide according to claim 20, wherein the peptide sequence is GLP-1.
23. Use of the peptide according to claim 22 in the treatment of glucose intolerance associated or not with insuline resistance pathologies.
24. Use accordmg to claim 23 in the treatment of type H diabetes.
25. A peptide according to claim 1 wherein said peptide sequence is CGRP and at least one conformationally rigid moiety is coupled with said CGRP peptide sequence via an amide or ester bond at different positions ofthe peptide sequence.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22261900P | 2000-08-02 | 2000-08-02 | |
US60/222,619 | 2000-08-02 | ||
PCT/CA2001/001119 WO2002010195A2 (en) | 2000-08-02 | 2001-08-02 | Modified peptides with increased potency |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001279526A1 true AU2001279526A1 (en) | 2002-02-13 |
Family
ID=22832986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001279526A Abandoned AU2001279526A1 (en) | 2000-08-02 | 2001-08-02 | Modified peptides with increased potency |
Country Status (8)
Country | Link |
---|---|
US (1) | US20030204063A1 (en) |
EP (1) | EP1305338A2 (en) |
JP (1) | JP2004509079A (en) |
CN (1) | CN1454214A (en) |
AU (1) | AU2001279526A1 (en) |
BR (1) | BR0113178A (en) |
CA (1) | CA2417100A1 (en) |
WO (1) | WO2002010195A2 (en) |
Families Citing this family (77)
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PT944648E (en) * | 1996-08-30 | 2007-06-26 | Novo Nordisk As | Glp-1 derivatives |
JP2002506792A (en) * | 1998-02-27 | 2002-03-05 | ノボ ノルディスク アクティーゼルスカブ | N-terminal modified GLP-1 derivative |
BR9915961A (en) * | 1998-12-07 | 2001-08-21 | Sod Conseils Rech Applic | Glp-1 analogs |
CZ303120B6 (en) * | 1998-12-07 | 2012-04-11 | Societe De Conseils De Recherches Et Dapplications Scientifiques S. A. | Compound and pharmaceutical composition |
-
2001
- 2001-08-02 AU AU2001279526A patent/AU2001279526A1/en not_active Abandoned
- 2001-08-02 CA CA002417100A patent/CA2417100A1/en not_active Abandoned
- 2001-08-02 WO PCT/CA2001/001119 patent/WO2002010195A2/en not_active Application Discontinuation
- 2001-08-02 EP EP01957662A patent/EP1305338A2/en not_active Withdrawn
- 2001-08-02 JP JP2002515924A patent/JP2004509079A/en active Pending
- 2001-08-02 US US10/343,654 patent/US20030204063A1/en not_active Abandoned
- 2001-08-02 BR BR0113178-8A patent/BR0113178A/en not_active Application Discontinuation
- 2001-08-02 CN CN01813865A patent/CN1454214A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2002010195A2 (en) | 2002-02-07 |
BR0113178A (en) | 2004-04-06 |
WO2002010195A3 (en) | 2002-10-03 |
EP1305338A2 (en) | 2003-05-02 |
CN1454214A (en) | 2003-11-05 |
CA2417100A1 (en) | 2002-02-07 |
US20030204063A1 (en) | 2003-10-30 |
JP2004509079A (en) | 2004-03-25 |
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