NZ734916B2 - Chimeric antigen receptors targeting b-cell maturation antigen - Google Patents

Abstract

The invention provides Chimeric Antigen Receptors (CARs) that specifically bind to BCMA (B-Cell Maturation Antigen). The invention further relates to engineered immune cells comprising such CARs, CAR-encoding nucleic acids, and methods of making such CARs, engineered immune cells, and nucleic acids. The invention further relates to therapeutic methods for use of these CARs and engineered immune cells for the treatment of a condition associated with malignant cells expressing BCMA (e.g., cancer). The invention further relates to therapeutic methods for use of these CARs and engineered immune cells for the treatment of a condition associated with malignant cells expressing BCMA (e.g., cancer).

Description

CHIMERIC ANTIGEN RECEPTORS TARGETING B-CELL MATURATION ANTIGEN Field The invention relates to chimeric antigen receptors (CAR). CARS are able to redirect immune cell icity and reactivity toward a selected target exploiting the ligand-binding domain ties. In particular, the invention s to CARs that specifically bind to B- Cell Maturation n (BCMA specific CARs). The invention further relates to polynucleotides encoding BCMA specific CAR and isolated cells sing BCMA ic CARs at their surface. The invention further relates to s for ering immune 1O cells expressing BCMA specific CARs at their surface. The invention is particularly useful for the treatment of B-cell lymphomas and leukemia. The invention further relates to immune cells comprising the BCMA specific CARs (BCMA specific CAR-T cells), compositions comprising the BCMA specific CAR-T cells, and methods of using the BCMA specific CAR-T cells for ng conditions associated with malignant cells expressing BCMA (e.g., cancer).

Background Multiple myeloma is a malignancy characterized by an accumulation of clonal plasma cells (see, e.g., Lonial et al., Clinical Cancer Res, 77(6): 1264-1277 (2011)). t therapies for MM often cause remissions, but nearly all patients eventually relapse and die (see, e.g., Rajkumar, Nature Rev. Clinical Oncol, 5(8): 479-491 (2011)).

Adoptive transfer of T cells genetically ed to recognize malignancy-associated antigens is showing promise as a new approach to treating cancer (see, e.g., Brenner et al., Current Opinion in Immunology, 22(2): 251-257 (2010); Rosenberg et al., Nature Reviews Cancer, 8(4): 299-308 (2008)). T cells can be genetically modified to express chimeric antigen ors (CARs), which are fusion proteins comprised of an n recognition moiety and T cell activation domains (see, e.g., Eshhar et al., Proc. Natl. Acad.

Sci. USA, 90(2): 720-724 , and Sadelain et al., Curr. Opin. lmmunol, 21(2): 215-223 (2009)).

B-cell maturation antigen (BCMA, CD269, or TNFRSF17) is a member of the tumor necrosis factor receptor (TNFR) superfamily. BCMA was identified in a malignant human T cell lymphoma containing a t(4;16) translocation. The gene is selectively expressed in the B-cell lineage with the highest expression in blasts and plasma cells, antibody secreting cells. BCMA binds two ligands, B-cell activation factor (BAFF) (also called B- lymphoctye stimulator (BLyS) and APOL-related yte expressed ligand (TALL-1)) and a proliferation-inducing ligand (APRIL) with affinity of 1uM and 16 nM, respectively. Binding of APRIL or BAFF to BCMA promotes a signaling cascade involving NF-kappa B, Elk-1, c- Jun N-terminal kinase and the p38 mitogen-activated protein kinase, which produce signals for cell survival and proliferation. BCMA is also expressed on malignant B cells and several cancers that involve B lymphocytes including multiple myeloma, plasmacytoma, Hodgkin’s Lymphoma, and c lymphocytic leukemia. ln autoimmune diseases where 1O plasmablasts are involved such as systemic lupus erythematosus (SLE) and rheumatoid arthritis, BCMA expressing dy-producing cells secrete autoantibodies that attack self.

In the case of multiple myeloma, about 24,000 new cases are newly diagnosed in the United States each year, and this number represents about 15% of the newly diagnosed hematological cancers in the United States. An average of 11,000 deaths result from multiple myeloma each year, and the e 5-year al rate is about 44%, with median survival of 50-55 months. Current ent for multiple myeloma is d on plasma cells apoptosis and/or decreasing osteoclast activity (e.g., chemotherapy, thalidomide, lenalidomide, bisphosphonates, and/or proteasome inhibitors such as bortezomib (VELCADE®) or carfilzomib). However, multiple myeloma remains an incurable disease, and almost all ts have developed resistance to these agents and eventually relapse. Accordingly, an alternative treatment to multiple myeloma, such as using an anti-BCMA antagonist including BCMA specific CARs and BCMA specific CAR-T cells, would make a superior eutic agent.

Summam Chimeric n receptors (CARs) that bind to BCMA are ed. It is demonstrated that certain BCMA specific CARs are effective when expressed in T cells to activate T cells upon contact with BCMA. Advantageously, the BCMA specific CARs provided herein bind human and cynomolgous monkey BCMA. Also advantageously, the BCMA specific CAR-T cells ed herein exhibit degranulation activity, increased interferon gamma production, and/or cytotoxic activity upon contact with xpressing cells.

In one aspect, the invention provides a BCMA specific CAR comprising an extracellular ligand-binding domain, a first transmembrane domain, and an intracellular signaling domain, n the extracellular ligand-binding domain domain comprises (a) a heavy chain variable (VH) region comprising (i) a VH complementarity determining region one (CDR1) comprising the sequence SYX1MX2, n X1 is A or P; and X2 is T, N, or S (SEQ ID NO: 301), GFTFX1SY, wherein X1 is G or S (SEQ ID NO: 302), or GFTFX1SYX2MX3, wherein X1 is G or S, X2 is A or P; and X3 is T, N, or S (SEQ ID NO: 1O 303); (ii) a VH CDR2 comprising the sequence AX1X2X3X4GX5X3X7X3YADX3X1OKG, wherein X1 is I, V, T, H, L, A, or C; X2 is S, D, G, T, I, L, F, M, or V; X3 is G, Y, L, H, D, A, S, or M; X4 is S, Q, T, A, F, or W; X5 is G or T;X6 is N, S, P, Y, W, or F; X7 is S, T, I, L, T, A, R, V, K, G, or C; X3 is F, Y, P, W, H, or G; X3 is V, R, or L; and X10 is G or T (SEQ ID NO: 305), or X1X2X3X4X5X3,wherein X1 is S, V, I, D, G, T, L, F, or M; X2 is G, Y, L, H, D, A, S, or M; X3 is S, G, F, or W; X4 is G or S; X5 is G or T; and X6 is N, S, P, Y, orW (SEQ ID NO: 306); and iii) a VH CDR3 comprising the sequence VSPIX1X2X3X4, n X1 is A or Y; X2 isA or S; and X3is G, Q, L, P, or E (SEQ ID NO: 307), or YWPMX1X2, wherein X1 is D, S, T, or A; and X2 is I, S, L, P, or D (SEQ ID NO: 308); and/or (b) a light chain le (VL) region comprising (i) a VL CDR1 comprising the sequence X1X2X3X4X5X3X7X3X3X10X11X12, wherein X1 is R, G, W, A, or C; X2 is A, P, G, L, C, or S; X3 is S, G, or R; X4 is Q, C, E, V, or I; X5 is S, L, P, G, A, R, or D; X3 is V, G, or I; X7 is S, E, D, or P; X3 is S, P, F, A, M, E, V, N, D, or Y; X3 is I, T, V, E, S, A, M, Q, Y, H, or R; X10 is Y or F; X11 is L, W, or P; and X12 is A, S, or G (SEQ ID NO: 309); (ii) a VL CDR2 comprising the ce X1ASX2RAX3, wherein X1 is G or D; X2 is S or I; and X3 is T or P (SEQ ID NO: 310); and (iii) a VL CDR3 comprising the sequence QQYX1X2X3PX4T, wherein X1 is G, Q, E, L, F, A, S, M, K, R, or Y; X2 is S, R, T, G, V, F, Y, D, A, H, V, E, K, or C; X3 is W, F, or S; and X4 is L or I (SEQ ID NO: 311), or 2X3PX4, wherein X1 is G, Q, E, L, F, A, S, M, R, K, or Y; X2 is S, R, T, G, R, V, D, A, H, E, K, C, F, or Y; X3 is W, S, or F; and X4 is L or I (SEQ ID NO: 312).

In another aspect, the invention provides a BCMA specific CAR comprising an extracellular ligand-binding domain, a first transmembrane , and an intracellular signaling domain, wherein the extracellular domain comprises a single chain Fv fragment (scFv) comprising a heavy chain variable (VH) region comprising three CDRs from the VH region comprising the sequence shown in SEQ ID NO: 33, 72, 39, 76, 83, 92, 25, or 8; and a light chain variable (VL) region comprising three CDRs from the VL region shown in SEQ ID NO: 34, 73, 40, 77, 84, 93, 18, or 80. In some embodiments, the VH region can se the sequence shown in SEQ ID NO: 33, 72, 39, 76, 83, 92, 25, or 8, or a t thereof with one or several conservative amino acid tutions in residues that are not within a CDR and/or the VL region can comprise the amino acid sequence shown in SEQ ID NO: 34, 73, 40, 77, 84, 93, 18, or 80, or a t thereof with one or several amino acid substitutions in amino acids that are not within a CDR. 1O In some embodiments, the extracellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region comprising (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 150, 151, 152, 156, 157, 129, 130, or 131; (ii) a VH CDR2 comprising the sequence shown in 153, 154, 187, 188, 165, 166, 162, 159, 190, 191, 169, 154, 139, 140, 132, or 133; and (iii) a VH CD3 sing the sequence shown in 155, 161, 134, or 137; and/or (b) a light chain variable region (VL) comprising (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 209, 249, 226, 251, 262, 271, 217, or 377; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 221, 252, or 210; and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 222, 225, 227, 253, 263, 272, 216, or 214.

In some embodiments, the extracellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region comprising (i) a VH complementarity determining region one (CDR1) sing the sequence shown in SEQ ID NO: 150, 151, or 152; (ii) a VH CDR2 comprising the sequence shown in 153 or 154; and (iii) a VH CD3 sing the sequence shown in 155; and/or (b) a light chain variable region (VL) comprising (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 209; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 221, and (iii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 222.

In some embodiments, the ellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region comprising (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 150, 151, or 152; (ii) a VH CDR2 comprising the sequence shown in 187 or 2016/051808 188; and (iii) a VH CD3 comprising the sequence shown in 155; and/or (b) a light chain variable region (VL) comprising (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 249; (ii) a VL CDR2 sing the sequence shown in SEQ ID NO: 221, and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 225.

In some embodiments, the extracellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region comprising (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 150, 151, or 152; (ii) a VH CDR2 comprising the sequence shown in 165 or 166; and (iii) a VH CD3 comprising the sequence shown in 155; and/or (b) a light chain 1O variable region (VL) comprising (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 226; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 221, and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 227.

In some embodiments, the extracellular ligand-binding domain domain of a BCMA ic CAR provided herein comprises (a) a heavy chain le (VH) region comprising (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 156, 151, or 157; (ii) a VH CDR2 comprising the ce shown in 162 or 159; and (iii) a VH CD3 comprising the ce shown in 161; and/or (b) a light chain le region (VL) comprising (i) a VL CDR1 comprising the ce shown in SEQ ID NO: 251; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 252, and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 253.

In some embodiments, the extracellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region sing (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 156, 151, or 157; (ii) a VH CDR2 comprising the sequence shown in 190 or 191; and (iii) a VH CD3 comprising the sequence shown in 161; and/or (b) a light chain variable region (VL) comprising (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 262; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 252, and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 263.

In some embodiments, the extracellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region comprising (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 150, 151, or 152; (ii) a VH CDR2 comprising the sequence shown in 169 or 154; and (iii) a VH CD3 comprising the sequence shown in 155; and/or (b) a light chain variable region (VL) sing (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 271; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 221, and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 272.

In some ments, the extracellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region sing (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 129, 130, or 131; (ii) a VH CDR2 comprising the sequence shown in 139 or 1O 140; and (iii) a VH CD3 comprising the sequence shown in 134; and/or (b) a light chain le region (VL) comprising (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 217; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 210, and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 216.

In some embodiments, the extracellular ligand-binding domain domain of a BCMA specific CAR provided herein comprises (a) a heavy chain variable (VH) region comprising (i) a VH complementarity determining region one (CDR1) comprising the sequence shown in SEQ ID NO: 129, 130, or 131; (ii) a VH CDR2 sing the sequence shown in 132 or 133; and (iii) a VH CD3 comprising the sequence shown in 137; and/or (b) a light chain variable region (VL) sing (i) a VL CDR1 comprising the sequence shown in SEQ ID NO: 377; (ii) a VL CDR2 comprising the sequence shown in SEQ ID NO: 210, and (iii) a VL CDR3 comprising the sequence shown in SEQ ID NO: 214.

In some embodiments, the intracellular signaling domain comprises a CD3: signalling domain. In some embodiments, the ellular signaling domain ses a 4- 188 domain. In some embodiments, the CAR can r comprise another intracellular signaling domain. In some embodiments, the additional intracellular signaling domain can comprise a 4-1 BB domain.

In some embodiments, the CAR can comprise a stalk domain between the extracellular ligand-binding domain and the first transmembrane domain. In some embodiments, the stalk domain can be selected from the group consisting of: a human CD8q hinge, an IgG1 hinge, and an chRlllq hinge.

In some embodiments, the first transmembrane domain can comprise a CD8d chain transmembrane domain.

In some embodiments, the CAR can comprise a CD20 e.

In some embodiments, the CAR can comprise another ellular ligand-binding domain which is not specific for BCMA.

In some embodiments, the BCMA specific CAR can comprise the amino acid sequence shown in SEQ ID NO: 396.

In some embodiments of a CAR, the extracellular ligand-binding domain(s), the first transmembrane domain, and intracellular ing domain(s) are on a single polypeptide. 1O In some embodiments, the CAR can comprise a second embrane domain, wherein the first transmembrane domain and the extracellular ligand-binding domain(s) are on a first polypeptide, and wherein the second transmembrane domain and the intracellular signaling domain(s) are on a second polypeptide, wherein the first transmembrane domain comprises a transmembrane domain from the or chain of the high-affinity IgE receptor (FceRl) and the second transmembrane domain comprises a transmembrane domain from the y or B chain of FcaRl. In some embodiments, the CAR can comprise a third polypeptide sing a third transmembrane domain fused to an intracellular signaling domain from a co-stimulatory molecule, wherein the third transmembrane domain comprises a transmembrane domain from the v or B chain of chRI.

In another aspect, the invention provides an ed polynucleotide comprising a c acid sequence encoding a BCMA specific CAR as described herein.

In another aspect, the invention provides an expression vector comprising a nucleic acid sequence ng a BCMA specific CAR antibody as described herein.

In another aspect, the ion provides engineered immune cell expressing at its cell surface membrane a BCMA specific CAR as described herein. In some embodiments, the engineered immunce cell can se r CAR which is not specific for BCMA. In some embodiments, the engineered immunce cell can comprise a polynucleotide encoding a suicide polypeptide. In some ments, the suicide polypeptide is RQR8.

In some embodiments, the immune cell can be derived from an inflammatory T- Iymphocyte, a cytotoxic T-Iymphocyte, a regulatory T- lymphocyte, or a helper T- lymphocyte. 2016/051808 In some embodiments, the engineered immune cell can comprise a tion one or more nous genes, wherein the endogenous gene encodes TCRd, TCRB, CD52, glucocorticoid receptor (GR), deoxycytidine kinase (DCK), or an immune checkpoint protein such as for example programmed death-1 (PD-1).

In some embodiments, immune cell is obtained from a healthy donor. In some embodiments, the immune cell is obtained from a patient.

In another aspect, the invention provides an ered immune cell expressing at its cell surface membrane a BCMA specific CAR as described herein for use as a medicament. In some embodiments, the medicament is for use in ent of a B-cell 1O related cancer selecting from the group consisting of multiple a, malignant plasma cell neoplasm, Hodgkin’s lymphoma, nodular lymphocyte predominant Hodgkin’s lymphoma, Kahler’s disease and Myelomatosis, plasma cell leukemia, plasmacytoma, B- cell prolymphocytic ia, hairy cell leukemia, B-cell non-Hodgkin’s ma (NHL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), acute cytic leukemia (ALL), chronic myeloid leukemia (CML), follicular lymphoma, Burkitt’s lymphoma, al zone lymphoma, mantle cell lymphoma, large cell ma, precursor B- lymphoblastic lymphoma, myeloid leukemia, Waldenstrom’s macroglobulienemia, diffuse large B cell lymphoma, follicular lymphoma, marginal zone lymphoma, mucosa-associated lymphatic tissue lymphoma, small cell lymphocytic lymphoma, mantle cell lymphoma, Burkitt lymphoma, primary mediastinal (thymic) large B-cell lymphoma, lymphoplasmactyic lymphoma, Waldenstrom macroglobulinemia, nodal marginal zone B cell lymphoma, splenic marginal zone lymphoma, ascular large B-cell lymphoma, primary effusion lymphoma, lymphomatoid granulomatosis, T cell/histiocyte-rich large B-cell ma, primary l nervous system lymphoma, primary cutaneous diffuse large B-cell lymphoma (leg type), EBV positive diffuse large B-cell lymphoma of the elderly, diffuse large B-cell lymphoma associated with mation, intravascular large B-cell lymphoma, ALK-positive large B-cell lymphoma, plasmablastic lymphoma, large B-cell lymphoma arising in HHV8—associated multicentric Castleman disease, B-cell lymphoma unclassified with features intermediate between diffuse large B-cell lymphoma and Burkitt lymphoma, B- cell lymphoma unclassified with features intermediate n diffuse large B-cell ma and classical Hodgkin lymphoma, and other B-cell related lymphoma.

In another aspect, the invention provides a method of engineering an immune cell comprising: providing an immune cell; and expressing at the surface of the cell at least one BCMA specific CAR as described herein.

In some embodiments, the method comprises: providing an immune cell; introducing into the cell at least one polynucleotide encoding said BCMA specific CAR; and expressing said polynucleotide into the cell.

In some embodiments, the method comprises ing an immune cell; introducing into the cell at least one polynucleotide encoding said BCMA specific CAR; and introducing at least one other CAR which is not specific for BCMA. 1O In another aspect, the invention provides a method of treating a subject suffering from a condition associated with malignant cells, the method comprising: providing a immune cell expressing at the surface a BCMA specific CAR as described herein; and administering said immune cells to said patient.

In another aspect, the invention provides a ceutical composition comprising an engineered immune cell as described herein.

In another aspect, the invention provides a method of treating a condition associated with malignant cells expressing BCMA in a t comprising administering to a t in need f an effective amount of a pharmaceutical composition of claim comprising an engineered immune cell as described herein. In some ments, the ion is a . In some ments, the cancer is a B-cell related cancer selecting from the group consisting of multiple myeloma, ant plasma cell neoplasm, n’s lymphoma, nodular lymphocyte predominant Hodgkin’s lymphoma, Kahler’s disease and Myelomatosis, plasma cell ia, plasmacytoma, B-cell prolymphocytic leukemia, hairy cell leukemia, B-cell non-Hodgkin’s lymphoma (NHL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), acute lymphocytic leukemia (ALL), chronic myeloid leukemia (CML), follicular lymphoma, Burkitt’s lymphoma, marginal zone lymphoma, mantle cell ma, large cell lymphoma, precursor B-lymphoblastic lymphoma, myeloid leukemia, Waldenstrom’s macroglobulienemia, diffuse large B cell ma, follicular lymphoma, marginal zone lymphoma, mucosa-associated lymphatic tissue lymphoma, small cell lymphocytic lymphoma, mantle cell lymphoma, Burkitt lymphoma, y mediastinal (thymic) large B-cell lymphoma, lymphoplasmactyic lymphoma, Waldenstrom macroglobulinemia, nodal marginal zone B cell lymphoma, splenic marginal zone ma, intravascular large B-cell lymphoma, primary effusion lymphoma, lymphomatoid omatosis, T istiocyte-rich large B-cell lymphoma, primary central nervous system lymphoma, y cutaneous diffuse large B-cell lymphoma (leg type), EBV positive diffuse large B-cell lymphoma of the elderly, diffuse large B-cell lymphoma associated with inflammation, intravascular large B-cell lymphoma, ALK-positive large B- cell lymphoma, plasmablastic lymphoma, large B-cell lymphoma arising in HHV8- ated multicentric Castleman disease, B-cell lymphoma unclassified with features intermediate between diffuse large B-cell lymphoma and t lymphoma, B-cell lymphoma unclassified with features intermediate between diffuse large B-cell lymphoma and classical Hodgkin lymphoma, and other B-cell related lymphoma.

In another aspect, the invention provides a method of inhibiting tumor growth or progression in a subject who has malignant cells expressing BCMA, comprising administering to the subject in need f an ive amount of a pharmaceutical composition comprising an engineered immune cell as described herein.

In another aspect, the invention provides a method inhibiting metastasis of ant cells expressing BCMA in a t, comprising administering to the subject in need thereof an effective amount of the pharmaceutical composition comprising an ered immune cell as described herein.

In r , the invention provides a method inducing tumor regression in a subject who has malignant cells expressing BCMA, comprising administering to the subject in need thereof an effective amount of the ceutical composition of a pharmaceutical composition comprising an engineered immune cell as described herein.

In some embodiments, any of the above methods further comprises administering one or more additional therapies, such as for example, a monoclonal antibody and/or a chemotherapeutic. In some embodiments, the monoclonal antibody can be, for example, an antibody that binds to a checkpoint inhibitor such as, for example, an anti-PD-1 antibody or an anti-PD-L1 antibody. In some embodiments, any of the above methods further comprises administering a nucleoside analog therapy, such as for example fludarabine or clofarabine, to the subject.

[FOLLOWED BY PAGE 10a] - 10a - In a particular aspect, the present invention provides a B-cell maturation antigen (BCMA) specific chimeric antigen receptor (CAR) comprising an extracellular ligand-binding domain, a first transmembrane domain, and an intracellular signaling domain, wherein the extracellular domain comprises a single chain Fv fragment (scFv) comprising (a) a heavy chain le (VH) region comprising a VH complementary determining region 1 (VH CDR1), a VH complementary determining region 2 (VH CDR2), and a VH complementary determining region 3 (VH CDR3), wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid ce of SEQ ID NO: 153 or 154; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a light chain variable (VL) region comprising a VL complementary determining region 1 (VL CDR1), a VL complementary determining region 2 (VL CDR2), and a VL mentary determining region 3 (VL CDR3), wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 209; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 ses the amino acid sequence of SEQ ID NO: 222; (b) a VH region sing a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 ses the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 187 or 188; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 249; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 225; (c) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid ce of SEQ ID NO: 165 or 166; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 226; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 ses the amino acid sequence of SEQ ID NO: 227; (followed by page 10b) - 10b - (d) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 151, 156, or 157; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 159 or 162; and the VH CDR3 ses the amino acid sequence of SEQ ID NO: 161; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 251; the VL CDR2 comprises the amino acid ce of SEQ ID NO: 252; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 253; (e) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 151, 156, or 157; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 190 or 191; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 161; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 262; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 252; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 263; (f) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 154 or 169; and the VH CDR3 comprises the amino acid ce of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid ce of SEQ ID NO: 271; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 272; (g) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 ses the amino acid ce of SEQ ID NO: 129, 130, or 131; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 139 or 140; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 134; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 217; the VL CDR2 comprises the (followed by page 10c) - 10c - amino acid sequence of SEQ ID NO: 210; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 216; or (h) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, n the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 151, 156, or 157; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 158 or 159; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 209; the VL CDR2 comprises the amino acid ce of SEQ ID NO: 221; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 225.

[FOLLOWED BY PAGE 11] Brief Description of the Drawings depicts a graph summarizing the results of treatment with BCMA specific CAR-T in the MM1.S tumor model. depicts a graph summarizing the results of treatment with BCMA specific CAR-T in the Molp8 tumor model.

Detailed Description The invention disclosed herein provides chimeric antigen receptors (CARs) and immune cells comprising CARs (CAR-T cells) that specifically bind to BCMA (e.g., human BCMA). The invention also provides polynucleotides encoding these CARs, compositions 1O sing these CAR-T cells, and methods of making and using these CARs and CAR-T cells. The invention also provides methods for treating a condition associated with malignant BCMA expression in a t, such as cancer.

General Techniques The practice of the invention will employ, unless otherwise indicated, tional techniques of molecular biology (including recombinant techniques), microbiology, cell y, biochemistry and logy, which are within the skill of the art. Such techniques are explained fully in the literature, such as, Molecular Cloning: A Laboratory Manual, second edition (Sambrook et al., 1989) Cold Spring Harbor Press; ucleotide sis (M.J. Gait, ed., 1984); Methods in Molecular Biology, Humana Press; Cell Biology: A Laboratory Notebook (J.E. Cellis, ed., 1998) Academic Press; Animal Cell Culture (R.I. Freshney, ed., 1987); Introduction to Cell and Tissue Culture (J.P. Mather and PE. Roberts, 1998) Plenum Press; Cell and Tissue Culture: Laboratory Procedures (A.

Doyle, J.B. Griffiths, and D.G. Newell, eds., 1993-1998) J. Wiley and Sons; Methods in Enzymology (Academic Press, Inc.); Handbook of Experimental Immunology (D.M. Weir and CC. Blackwell, eds.); Gene Transfer s for Mammalian Cells (J.M. Miller and MP. Calos, eds., 1987); t Protocols in Molecular Biology (F.M. Ausubel et al., eds., 1987); PCR: The Polymerase Chain on, (Mullis et al., eds., 1994); Current ols in Immunology (J.E. Coligan et al., eds., 1991); Short Protocols in Molecular Biology (Wiley and Sons, 1999); Immunobiology (C.A. Janeway and P. Travers, 1997); Antibodies (P.

WO 66630 Finch, 1997); Antibodies: a practical approach (D. Catty., ed., IRL Press, 1988-1989); Monoclonal antibodies: a practical approach (P. rd and C. Dean, eds, Oxford University Press, 2000); Using antibodies: a laboratory manual (E. Harlow and D. Lane (Cold Spring Harbor Laboratory Press, 1999); The Antibodies (M. Zanetti and JD. Capra, eds., Han/vood Academic Publishers, 1995).

Definitions The term "extracellular ligand-binding domain" as used herein refers to an oligo- or polypeptide that is capable of g a ligand. Preferably, the domain will be e of 1O cting with a cell surface molecule. For example, the extracellular ligand-binding domain may be chosen to recognize a ligand that acts as a cell surface marker on target cells associated with a particular disease state.

The term "stalk domain" or "hinge domain" are used interchangeably herein to refer to any oligo- or polypeptide that functions to link the transmembrane domain to the extracellular - binding domain. In particular, stalk domains are used to provide more flexibility and accessibility for the extracellular ligand-binding domain.

The term "intracellular signaling domain" refers to the portion of a protein which transduces the effector signal function signal and s the cell to perform a specialized function.

A "co-stimulatory molecule" as used herein refers to the cognate binding partner on a T cell that specifically binds with a co-stimulatory ligand, thereby mediating a co- stimulatory response by the cell, such as, but not limited to proliferation. Co-stimulatory molecules include, but are not limited to an MHC class I molecule, BTLA and Toll ligand receptor. Examples of costimulatory molecules include CD27, CD28, CD8, 4-1BB (CD137), 0X40, CD30, CD40, PD-1, ICOS, cyte on-associated antigen-1 (LFA-1), CD2, CD7, LIGHT, NKG2C, B7-H3 and a ligand that specifically binds with CD83 and the like.

A imulatory ligand" refers to a molecule on an antigen presenting cell that specifically binds a cognate co-stimulatory signal molecule on a T cell, thereby providing a signal which, in addition to the y signal provided by, for instance, binding of a TCR/CD3 complex with an MHC molecule loaded with peptide, mediates a T cell se, including, but not limited to, proliferation activation, differentiation and the like. A co- atory ligand can include but is not limited to CD7, B7-1 , B7-2 (CD86), PD-L1, PD-L2, 4-1BBL, OX4OL, inducible costimulatory igand (lCOS-L), intercellular adhesion molecule (ICAM, CD30L, CD40, CD70, CD83, HLA-G, MICA, M1CB, HVEM, lymphotoxin 8 receptor, 3/TR6, lLT3, lLT4, an agonist or antibody that binds Toll ligand receptor and a ligand that specifically binds with B7-H3. A co-stimulatory ligand also encompasses, inter alia, an antibody that specifically binds with a co-stimulatory molecule t on a T cell, such as but not limited to, CD27, CD28, 4-1BB, 0X40, CD30, CD40, PD-1, ICOS, lymphocyte function-associated antigen-1 (LFA-1), CD2, CD7, LTGHT, NKG2C, B7-H3, a ligand that specifically binds with CD83. 1O An "antibody" is an globulin molecule capable of ic binding to a target, such as a ydrate, polynucleotide, lipid, polypeptide, etc., through at least one n recognition site, located in the variable region of the immunoglobulin molecule. As used herein, the term encompasses not only intact polyclonal or monoclonal antibodies, but also fragments thereof (such as Fab, Fab’, 2, Fv), single chain (scFv) and domain antibodies (including, for example, shark and camelid dies), and fusion proteins comprising an antibody, and any other modified configuration of the immunoglobulin molecule that comprises an antigen recognition site. An antibody includes an antibody of any class, such as lgG, lgA, or lgM (or sub-class thereof), and the antibody need not be of any particular class. Depending on the antibody amino acid sequence of the constant region of its heavy , immunoglobulins can be assigned to different classes. There are five major classes of immunoglobulins: lgA, lgD, lgE, lgG, and lgM, and several of these may be further divided into subclasses (isotypes), e.g., lgG1, lgG2, lgG3, lgG4, lgA1 and lgA2. The heavy-chain constant s that correspond to the different classes of immunoglobulins are called alpha, delta, epsilon, gamma, and mu, respectively. The subunit structures and three-dimensional configurations of different classes of immunoglobulins are well known.

The term en binding fragment" or "antigen binding portion" of an antibody, as used herein, refers to one or more fragments of an intact antibody that retain the ability to specifically bind to a given antigen (e.g., BCMA). Antigen binding functions of an antibody can be performed by fragments of an intact antibody. Examples of binding fragments encompassed within the term "antigen binding fragment" of an antibody include Fab; Fab’; F(ab’)2; an Fd fragment consisting of the VH and CH1 domains; an Fv fragment consisting of the VL and VH domains of a single arm of an antibody; a single domain antibody (dAb) fragment (Ward et al., Nature 341:544-546, 1989), and an isolated complementarity determining region (CDR).

An antibody, an antibody conjugate, or a polypeptide that "preferentially binds" or "specifically binds" (used interchangeably herein) to a target (e.g., BCMA protein) is a term well understood in the art, and methods to ine such specific or preferential binding are also well known in the art. A molecule is said to exhibit "specific binding" or "preferential g" if it reacts or associates more frequently, more rapidly, with greater 1O duration and/or with greater affinity with a particular cell or substance than it does with alternative cells or substances. An antibody "specifically binds" or "preferentially binds" to a target if it binds with greater ty, avidity, more readily, and/or with r duration than it binds to other substances. For e, an antibody that specifically or preferentially binds to a BCMA epitope is an antibody that binds this epitope with greater affinity, avidity, more readily, and/or with greater duration than it binds to other BCMA epitopes or non- BCMA epitopes. It is also understood that by reading this definition, for example, an dy (or moiety or epitope) that specifically or preferentially binds to a first target may or may not specifically or preferentially bind to a second target. As such, "specific binding" or "preferential binding" does not necessarily require (although it can e) exclusive binding. Generally, but not necessarily, nce to binding means preferential binding.

A "variable region" of an antibody refers to the variable region of the dy light chain or the le region of the antibody heavy chain, either alone or in ation. As known in the art, the variable regions of the heavy and light chain each t of four framework regions (FR) connected by three complementarity determining regions (CDRs) also known as hypervariable regions. The CDRs in each chain are held together in close proximity by the FRs and, with the CDRs from the other chain, contribute to the formation of the antigen binding site of antibodies. There are at least two techniques for determining CDRs: (1) an approach based on cross-species sequence variability (i.e., Kabat et al.

Sequences of Proteins of Immunological lnterest, (5th ed., 1991, National Institutes of Health, Bethesda MD)); and (2) an approach based on crystallographic studies of antigen- antibody complexes (Al-lazikani et al., 1997, J. Molec. Biol. 7-948). As used herein, 2016/051808 a CDR may refer to CDRs defined by either approach or by a combination of both approaches.

A "CDR" of a variable domain are amino acid residues within the variable region that are identified in accordance with the definitions of the Kabat, Chothia, the accumulation of both Kabat and Chothia, AbM, contact, and/or conformational definitions or any method of CDR determination well known in the art. dy CDRs may be identified as the hypervariable s originally defined by Kabat et al. See, e.g., Kabat et al., 1992, Sequences of Proteins of Immunological Interest, 5th ed., Public Health Service, NIH, Washington DC. The positions of the CDRs may also be identified as the structural loop 1O ures originally described by Chothia and others. See, e.g., Chothia et al., Nature 342:877-883, 1989. Other approaches to CDR identification include the "AbM definition," which is a compromise between Kabat and Chothia and is derived using Oxford Molecular's AbM antibody modeling software (now Accelrys®), or the ct definition" of CDRs based on observed antigen contacts, set forth in MacCaIIum et al., J. Mol. Biol., 262:732— 745, 1996. In another approach, referred to herein as the "conformational definition" of CDRs, the positions of the CDRs may be identified as the residues that make enthaIpic contributions to antigen binding. See, e.g., Makabe et al., Journal of ical Chemistry, 283:1156—1166, 2008. Still other CDR boundary definitions may not strictly follow one of the above approaches, but will nonetheless overlap with at least a portion of the Kabat CDRs, although they may be shortened or lengthened in light of prediction or mental gs that particular es or groups of residues or even entire CDRs do not significantly impact antigen g. As used herein, a CDR may refer to CDRs defined by any approach known in the art, ing combinations of approaches. The methods used herein may utilize CDRs defined according to any of these approaches. For any given embodiment containing more than one CDR, the CDRs may be defined in accordance with any of Kabat, Chothia, extended, AbM, contact, and/or conformational tions.

As used herein, "monoclonal antibody" refers to an antibody obtained from a population of ntially homogeneous antibodies, i.e., the individual antibodies comprising the population are identical except for possible naturally-occurring mutations that may be present in minor amounts. Monoclonal antibodies are highly specific, being directed against a single antigenic site. Furthermore, in contrast to polyclonal antibody preparations, which typically e different antibodies directed against different determinants (epitopes), each onal antibody is directed against a single determinant on the antigen. The modifier "monoclonal" indicates the character of the antibody as being obtained from a substantially homogeneous population of antibodies, and is not to be construed as requiring production of the antibody by any particular method. For example, the monoclonal antibodies to be used in accordance with the invention may be made by the hybridoma method first described by Kohler and Milstein, Nature 256:495, 1975, or may be made by recombinant DNA methods such as described in US. Pat. No. 4,816,567. The monoclonal antibodies may also be isolated from phage libraries generated using the 1O techniques described in McCafferty et al., Nature 348:552—554, 1990, for example.

As used herein, "humanized" dy refers to forms of man (e.g. murine) antibodies that are chimeric immunoglobulins, globulin chains, or fragments thereof (such as Fv, Fab, Fab’, F(ab')2 or other antigen binding uences of antibodies) that contain minimal sequence d from non-human immunoglobulin. ably, humanized antibodies are human immunoglobulins ient antibody) in which residues from a complementarity determining region (CDR) of the recipient are replaced by residues from a CDR of a non-human species (donor antibody) such as mouse, rat, or rabbit having the desired specificity, affinity, and capacity. In some instances, Fv framework region (FR) es of the human immunoglobulin are replaced by corresponding man residues. Furthermore, the humanized antibody may se residues that are found neither in the recipient antibody nor in the imported CDR or framework sequences, but are included to further refine and optimize antibody performance. In general, the humanized antibody will comprise substantially all of at least one, and typically two, variable domains, in which all or substantially all of the CDR regions correspond to those of a non-human immunoglobulin and all or substantially all of the FR regions are those of a human immunoglobulin consensus ce. The humanized antibody optimally also will comprise at least a portion of an immunoglobulin constant region or domain (Fc), typically that of a human immunoglobulin. Preferred are antibodies having Fc s modified as described in WO 99/58572. Other forms of humanized antibodies have one or more CDRs (CDR L1, CDR L2, CDR L3, CDR H1, CDR H2, or CDR H3) which are altered with respect to the original antibody, which are also termed one or more CDRs "derived from" one or more CDRs from the original dy.

As used herein, "human antibody" means an antibody having an amino acid sequence corresponding to that of an antibody produced by a human and/or which has been made using any of the ques for making human antibodies known to those skilled in the art or disclosed herein. This definition of a human antibody includes antibodies comprising at least one human heavy chain polypeptide or at least one human light chain polypeptide. One such example is an antibody comprising murine light chain and human heavy chain polypeptides. Human antibodies can be produced using s 1O ques known in the art. In one embodiment, the human antibody is selected from a phage library, where that phage library expresses human antibodies an et al., Nature Biotechnology, -314, 1996; Sheets et al., Proc. Natl. Acad. Sci. (USA) 95:6157-6162, 1998; Hoogenboom and Winter, J. Mol. Biol., 227:381, 1991; Marks et al., J.

Mol. Biol., 222:581, 1991). Human antibodies can also be made by immunization of animals into which human immunoglobulin loci have been transgenically introduced in place of the endogenous loci, e.g., mice in which the nous immunoglobulin genes have been partially or completely inactivated. This approach is described in US. Pat. Nos. ,545,807; 5,545,806; 5,569,825; 5,625,126; 5,633,425; and 5,661,016. Alternatively, the human antibody may be prepared by immortalizing human B lymphocytes that produce an antibody directed against a target antigen (such B lymphocytes may be recovered from an individual or from single cell cloning of the cDNA, or may have been immunized in vitro).

See, e.g., Cole et al. Monoclonal Antibodies and Cancer Therapy, Alan R. Liss, p. 77, 1985; Boerneret al., J. lmmunol., 147 (1):86-95, 1991; and US. Pat. No. 5,750,373.

The term "chimeric dy" is intended to refer to antibodies in which the variable region sequences are derived from one species and the constant region sequences are derived from r species, such as an antibody in which the variable region ces are derived from a mouse antibody and the constant region sequences are derived from a human antibody.

The terms eptide", "oligopeptide", "peptide" and in" are used interchangeably herein to refer to chains of amino acids of any length, preferably, relatively short (e.g., 10-100 amino acids). The chain may be linear or branched, it may comprise modified amino acids, and/or may be interrupted by non-amino acids. The terms also encompass an amino acid chain that has been modified naturally or by intervention; for example, disulfide bond formation, glycosylation, lipidation, acetylation, phosphorylation, or any other manipulation or modification, such as conjugation with a labeling component.

Also included within the definition are, for example, polypeptides containing one or more s of an amino acid (including, for example, unnatural amino acids, etc.), as well as other modifications known in the art. It is understood that the polypeptides can occur as single chains or ated chains.

A "monovalent antibody" ses one antigen binding site per molecule (e.g., lgG 1O or Fab). In some instances, a monovalent antibody can have more than one antigen g sites, but the binding sites are from different antigens.

A "bivalent antibody" comprises two antigen binding sites per molecule (e.g., lgG).

In some instances, the two g sites have the same antigen icities. However, bivalent antibodies may be bispecific.

A "bispecific," "dual-specific" or "bifunctional" antibody is a hybrid antibody having two different antigen binding sites. The two antigen binding sites of a ific antibody bind to two different epitopes, which may reside on the same or different protein targets.

Antibodies of the invention can be produced using ques well known in the art, e.g., recombinant technologies, phage display technologies, synthetic logies or combinations of such technologies or other technologies readily known in the art (see, for e, Jayasena, S.D., Clin. Chem., 45: 1628-50, 1999 and Fellouse, F.A., et al, J. Mol.

Biol, 373(4):924-40, 2007).

As known in the art, "polynucleotide," or "nucleic acid," as used interchangeably herein, refer to chains of nucleotides of any , and include DNA and RNA. The nucleotides can be deoxyribonucleotides, ribonucleotides, modified nucleotides or bases, and/or their analogs, or any substrate that can be incorporated into a chain by DNA or RNA polymerase. A polynucleotide may comprise ed nucleotides, such as methylated nucleotides and their analogs. If present, modification to the nucleotide ure may be imparted before or after assembly of the chain. The sequence of nucleotides may be interrupted by non-nucleotide components. A polynucleotide may be further modified after polymerization, such as by conjugation with a labeling component. Other types of modifications include, for example, "caps", substitution of one or more of the lly occurring nucleotides with an analog, internucleotide modifications such as, for example, those with uncharged linkages (e.g., methyl phosphonates, phosphotriesters, phosphoamidates, carbamates, etc.) and with charged linkages (e.g., phosphorothioates, phosphorodithioates, etc), those containing pendant moieties, such as, for example, proteins (e.g., nucleases, toxins, antibodies, signal peptides, poly-L-lysine, etc), those with alators (e.g., acridine, psoralen, etc), those containing chelators (e.g., metals, radioactive metals, boron, oxidative metals, etc), those containing alkylators, those with ed linkages (e.g., alpha anomeric nucleic acids, etc), as well as unmodified forms of 1O the polynucleotide(s). Further, any of the hydroxyl groups ordinarily present in the sugars may be replaced, for example, by phosphonate groups, phosphate groups, protected by standard ting groups, or activated to prepare additional es to additional nucleotides, or may be conjugated to solid supports. The 5’ and 3’ terminal OH can be phosphorylated or substituted with amines or organic g group moieties of from 1 to 20 carbon atoms. Other hydroxyls may also be derivatized to standard protecting groups.

Polynucleotides can also contain analogous forms of ribose or deoxyribose sugars that are generally known in the art, including, for example, 2’-O-methyl-, 2’-O-allyl, oro- or 2’- azido-ribose, carbocyclic sugar analogs, alpha- or beta-anomeric sugars, epimeric sugars such as arabinose, xyloses or lyxoses, pyranose , se sugars, sedoheptuloses, acyclic analogs and abasic nucleoside s such as methyl de. One or more odiester es may be replaced by alternative linking groups. These alternative linking groups include, but are not limited to, embodiments wherein phosphate is replaced by P(O)S("thioate"), P(S)S ("dithioate"), (O)NR2 ("amidate"), P(O)R, P(O)OR’, CO or CH2 ("formacetal"), in which each R or R’ is independently H or substituted or unsubstituted alkyl (1-20 C) optionally containing an ether (-O-) e, aryl, alkenyl, cycloalkyl, cycloalkenyl or araldyl. Not all linkages in a polynucleotide need be cal. The preceding description applies to all polynucleotides referred to herein, including RNA and DNA.

As known in the art a "constant region" of an antibody refers to the nt region of the antibody light chain or the constant region of the antibody heavy chain, either alone or in combination. 2016/051808 As used herein, "substantially pure" refers to material which is at least 50% pure (i.e., free from contaminants), more preferably, at least 90% pure, more preferably, at least 95% pure, yet more preferably, at least 98% pure, and most preferably, at least 99% pure.

A "host cell" includes an individual cell or cell culture that can be or has been a recipient for vector(s) for incorporation of polynucleotide s. Host cells include progeny of a single host cell, and the progeny may not necessarily be completely identical (in morphology or in genomic DNA ment) to the original parent cell due to natural, accidental, or deliberate mutation. A host cell includes cells transfected in vivo with a polynucleotide(s) of this invention. 1O As used herein, "immune cell" refers to a cell of hematopoietic origin functionally involved in the initiation and/or execution of innate and/or adaptative immune response.

As known in the art, the term "Fc region" is used to define a C-terminal region of an immunoglobulin heavy chain. The "Fc region" may be a native sequence Fc region or a variant Fc region. Although the ries of the Fc region of an immunoglobulin heavy chain might vary, the human IgG heavy chain Fc region is usually defined to stretch from an amino acid residue at position Cys226, or from Pr0230, to the yI-terminus thereof.

The ing of the residues in the Fc region is that of the EU index as in Kabat. Kabat et al., Sequences of Proteins of Immunological Interest, 5th Ed. Public Health Service, National Institutes of Health, da, Md., 1991. The Fc region of an immunoglobulin generally comprises two constant regions, CH2 and CH3.

As used in the art, "Fc receptor" and "FcR" describe a receptor that binds to the Fc region of an antibody. The preferred FcR is a native sequence human FcR. er, a preferred FcR is one which binds an IgG antibody (a gamma receptor) and includes receptors of the chRI, Fclel, and Fclell subclasses, including allelic variants and alternatively spliced forms of these receptors. Fclel receptors e FcyRIIA (an "activating receptor") and chRllB (an "inhibiting receptor"), which have similar amino acid sequences that differ primarily in the asmic domains thereof. FcRs are reviewed in Ravetch and Kinet, Ann. Rev. Immunol, 9457-92, 1991; Capel et al., Immunomethods, 4:25-34, 1994; and de Haas et al., J. Lab. Clin. Med, 126:330-41, 1995. "FcR" also includes the neonatal or, FcRn, which is sible for the transfer of maternal IgGs to the fetus (Guyer et al., J. lmmunol., 117:587, 1976; and Kim et al., J. lmmunol., 24:249, 1994).

The term "compete", as used herein with regard to an antibody, means that a first antibody, or an antigen binding nt (or portion) thereof, binds to an epitope in a manner sufficiently similar to the binding of a second antibody, or an antigen binding portion thereof, such that the result of binding of the first antibody with its e epitope is detectably decreased in the presence of the second antibody compared to the binding of the first antibody in the absence of the second antibody. The alternative, where the binding of the second antibody to its epitope is also detectably decreased in the ce of the 1O first antibody, can, but need not be the case. That is, a first antibody can inhibit the binding of a second antibody to its epitope without that second antibody inhibiting the binding of the first antibody to its respective epitope. However, where each antibody detectably inhibits the binding of the other antibody with its e epitope or ligand, r to the same, greater, or lesser , the antibodies are said to "cross-compete" with each other for binding of their respective epitope(s). Both competing and competing antibodies are encompassed by the invention. Regardless of the mechanism by which such competition or cross-competition occurs (e.g., steric hindrance, conformational change, or binding to a common epitope, or portion thereof), the d artisan would appreciate, based upon the teachings provided herein, that such competing and/or competing antibodies are encompassed and can be useful for the methods disclosed herein.

As used herein "autologous" means that cells, a cell line, or population of cells used for treating patients are originating from said patient or from a Human Leucocyte Antigen (HLA) compatible donor.

As used herein eneic" means that cells or population of cells used for ng patients are not ating from said patient but from a donor.

As used herein, "treatment" is an approach for obtaining beneficial or desired clinical results. For purposes of this invention, beneficial or desired clinical s include, but are not limited to, one or more of the following: reducing the proliferation of (or destroying) neoplastic or cancerous cells, inhibiting asis of stic cells, shrinking or decreasing the size of BCMA expressing tumor, remission of a BCMA associated disease (e.g., cancer), decreasing symptoms resulting from a BCMA associated disease (e.g., cancer), increasing the y of life of those suffering from a BCMA associated disease (e.g., cancer), decreasing the dose of other medications required to treat a BCMA associated disease (e.g., cancer), delaying the progression of a BCMA associated e (e.g., cancer), curing a BCMA associated disease (e..g, ), and/or g survival of patients having a BCMA associated disease (e.g., cancer).

"Ameliorating" means a lessening or improvement of one or more symptoms as compared to not administering a BCMA antibody or a BCMA antibody conjugate.

"Ameliorating" also includes shortening or reduction in duration of a symptom.

As used herein, an "effective dosage" or "effective amount" of drug, compound, or 1O pharmaceutical composition is an amount sufficient to effect any one or more beneficial or d results. For prophylactic use, beneficial or desired results include eliminating or reducing the risk, lessening the ty, or delaying the outset of the disease, including biochemical, ogical and/or behavioral symptoms of the disease, its complications and intermediate pathological phenotypes presenting during development of the disease. For therapeutic use, beneficial or desired results include clinical results such as reducing incidence or amelioration of one or more symptoms of various BCMA associated diseases or conditions (such as for example le myeloma), decreasing the dose of other medications required to treat the disease, enhancing the effect of another medication, and/or delaying the progression of the BCMA associated disease of patients. An effective dosage can be administered in one or more administrations. For purposes of this invention, an effective dosage of drug, compound, or pharmaceutical composition is an amount sufficient to accomplish prophylactic or therapeutic treatment either directly or indirectly. As is understood in the clinical context, an effective dosage of a drug, compound, or pharmaceutical composition may or may not be achieved in conjunction with another drug, compound, or pharmaceutical ition. Thus, an tive dosage" may be considered in the context of stering one or more therapeutic agents, and a single agent may be ered to be given in an effective amount if, in conjunction with one or more other agents, a desirable result may be or is achieved.

An idual" or a "subject" is a mammal, more preferably, a human. Mammals also e, but are not limited to, farm animals, sport animals, pets, primates, horses, dogs, cats, mice and rats.

As used herein, "vector" means a construct, which is capable of delivering, and, preferably, expressing, one or more ) or sequence(s) of interest in a host cell.

Examples of vectors include, but are not limited to, viral vectors, naked DNA or RNA expression vectors, plasmid, cosmid or phage vectors, DNA or RNA expression vectors associated with cationic condensing agents, DNA or RNA expression vectors encapsulated in liposomes, and certain eukaryotic cells, such as producer cells.

As used herein, "expression control sequence" means a c acid sequence that directs transcription of a nucleic acid. An expression l sequence can be a promoter, such as a constitutive or an inducible promoter, or an enhancer. The expression control 1O sequence is ly linked to the c acid sequence to be transcribed.

As used herein, "pharmaceutically acceptable carrier" or "pharmaceutical acceptable ent" includes any material which, when combined with an active ingredient, allows the ingredient to retain biological activity and is non-reactive with the subject's immune system.

Examples e, but are not limited to, any of the standard pharmaceutical carriers such as a phosphate buffered saline solution, water, emulsions such as oil/water emulsion, and various types of wetting agents. Preferred diluents for aerosol or eral administration are phosphate buffered saline (PBS) or normal (0.9%) saline. Compositions comprising such carriers are formulated by well known conventional methods (see, for example, Remington's Pharmaceutical Sciences, 18th edition, A. Gennaro, ed., Mack Publishing Co., Easton, PA, 1990; and Remington, The Science and Practice of Pharmacy 21st Ed. Mack Publishing, 2005).

The term "kon", as used herein, refers to the rate constant for ation of an antibody to an antigen.

The term "koff as used herein, refers to the rate constant for dissociation of an antibody from the antibody/antigen complex.

The term "KD", as used herein, refers to the equilibrium dissociation constant of an dy-antigen interaction. nce to "about" a value or ter herein es (and describes) embodiments that are directed to that value or parameter per se. For example, ption referring to "about X" includes ption of X.’ Numeric ranges are inclusive of the numbers defining the range.

WO 66630 It is understood that er embodiments are described herein with the ge "comprising," othen/vise analogous embodiments described in terms of "consisting of" and/or "consisting essentially of" are also provided.

Where aspects or embodiments of the invention are described in terms of a Markush group or other grouping of atives, the invention encompasses not only the entire group listed as a whole, but each member of the group individually and all possible subgroups of the main group, but also the main group absent one or more of the group members. The invention also envisages the explicit exclusion of one or more of any of the group members in the d invention. 1O Unless vise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control. Throughout this ication and claims, the word "comprise," or variations such as "comprises" or "comprising" will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers. Unless othen/vise required by context, singular terms shall e pluralities and plural terms shall include the singular.

Exemplary methods and materials are described herein, although methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the invention. The materials, methods, and examples are illustrative only and not intended to be limiting.

BCMA specific CARs and s of Making Thereof The invention provides CARs that bind to BCMA (e.g., human BCMA (e.g., SEQ ID NO: 354 or accession number: Q02223-2). BCMA specific CARs provided herein include single chain CARS and multichain CARs. The CARs have the ability to redirect T cell specificity and reactivity toward BCMA in a C-restricted manner, exploiting the antigen-binding properties of monoclonal antibodies. The non-MHC-restricted antigen recognition gives T cells expressing CARs the ability to recognize an antigen independent of antigen processing, thus ing a major mechanism of tumor escape.

In some embodiments, CARS provided herein comprise an extracellular ligand- binding domain (e.g., a single chain variable fragment (scFv)), a transmembrane domain, and an ellular signaling domain. In some embodiments, the extracellular ligandbinding domain, embrane domain, and intracellular ing domain are in one polypeptide, i.e., in a single chain. Multichain CARs and polypeptides are also provided herein. In some embodiments, the hain CARs comprise: a first polypeptide comprising a transmembrane domain and at least one extracellular ligand-binding domain, and a second polypeptide comprising a transmembrane domain and at least one intracellular signaling domain, wherein the polypeptides assemble together to form a 1O multichain CAR.

In some embodiments, a BCMA specific hain CAR is based on the high affinity or for lgE (chRl). The chRl expressed on mast cells and basophiles triggers allergic reactions. chRl is a tetrameric complex composed of a single or subunit, a single 8 subunit, and two disulfide-Iinked v subunits. The d subunit contains the lgE-binding domain. The [3 and y ts contain ITAMs that e signal transduction. In some embodiments, the extracellular domain of the FcRor chain is deleted and replaced by a BCMA specific extracellular ligand-binding domain. In some embodiments, the multichain BCMA specific CAR comprises an scFv that binds ically to BCMA, the CD8d hinge, and the ITAM of the FcRB chain. In some embodiments, the CAR may or may not comprise the FcRy chain.

In some embodiments, the extracellular ligand-binding domain comprises an scFv comprising the light chain variable (VL) region and the heavy chain variable (VH) region of a target antigen specific monoclonal antibody joined by a flexible linker. Single chain variable region fragments are made by g light and/or heavy chain variable regions by using a short linking e (Bird et al., Science 242:423-426, 1988). An example of a linking peptide is the GS linker having the amino acid sequence (GGGGS)3 (SEQ ID NO: 333), which s approximately 3.5 nm between the carboxy terminus of one le region and the amino terminus of the other variable region. s of other sequences have been designed and used (Bird et al., 1988, supra). In general, linkers can be short, flexible polypeptides and preferably comprised of about 20 or fewer amino acid residues.

Linkers can in turn be modified for additional functions, such as attachment of drugs or attachment to solid supports. The single chain variants can be produced either recombinantly or synthetically. For synthetic production of scFv, an automated synthesizer can be used. For recombinant production of scFv, a suitable plasmid containing polynucleotide that encodes the scFv can be introduced into a suitable host cell, either eukaryotic, such as yeast, plant, insect or mammalian cells, or prokaryotic, such as E. coli.

Polynucleotides encoding the scFv of interest can be made by routine manipulations such as ligation of polynucleotides. The resultant scFv can be isolated using standard protein purification techniques known in the art.

In some embodiments, the extracellular ligand-binding domain ses (a) a VH 1O region comprising (i) a VH complementarity determining region one (CDR1) comprising the ce SYX1MX2, wherein X1 is A or P; and X2 is T, N, or S (SEQ ID NO: 301), GFTFX1SY, wherein X1 is G or S (SEQ ID NO: 302), or SYX2MX3, n X1 is G or S, X2 is A or P; and X3 is T, N, or S (SEQ ID NO: 303); (ii) a VH CDR2 sing the sequence AX1X2X3X4GX5X3X7X3YADX3X1OKG, wherein X1 is I, V, T, H, L, A, or C; X2 is S, D, G, T, I, L, F, M, orV; X3 is G, Y, L, H, D, A, S, or M; X4 is S, Q, T, A, F, or W; X5 is G or T;X6 is N, S, P, Y, W, or F; X7 is S, T, I, L, T, A, R, V, K, G, or C; X3 is F, Y, P, W, H, or G; X3 is V, R, or L; and X10 is G or T (SEQ ID NO: 305), or X1X2X3X4X5X6, wherein X1 is S, V, I, D, G, T, L, F, or M; X2 is G, Y, L, H, D, A, S, or M; X3 is S, G, F, orW; X4 is G or S; X5 isG or T; and X6 is N, S, P, Y, or W (SEQ ID NO: 306); and iii) a VH CDR3 comprising the sequence VSPIX1X2X3X4, wherein X1 is A or Y; X2 is A or S; and X3 is G, Q, L, P, or E (SEQ ID NO: 307), or YWPMX1X2, wherein X1 is D, S, T, or A; and X2 is I, S, L, P, or D (SEQ ID NO: 308); and a VL region comprising (i) a VL CDR1 comprising the sequence X1X2X3X4X5X6X7X3X3X10X11X12, wherein X1 is R, G, W, A, or C; X2 is A, P, G, L, C, or S; X3 is S, G, or R; X4 is Q, C, E, V, or I; X5 is S, L, P, G, A, R, or D; X3 is V, G, or I; X7 is S, E, D, or P; X3 is S, P, F, A, M, E, V, N, D, or Y; X3 is I, T, V, E, S, A, M, Q, Y, H, or R; X10 isY or F; X11 is L, W, or P; and X12 is A, S, or G (SEQ ID NO: 309); (ii) a VL CDR2 sing the sequence X1ASX2RAX3, wherein X1 is G or D; X2 is S or I; and X3 is T or P (SEQ ID NO: 310); and (iii) a VL CDR3 comprising the sequence QQYX1X2X3PX4T, wherein X1 is G, Q, E, L, F, A, S, M, K, R, or Y; X2 is S, R, T, G, V, F, Y, D, A, H, V, E, K, or C; X3 is W, F, or S; and X4 is L or I (SEQ ID NO: 311), or 2X3PX4, wherein X1 is G, Q, E, L, F, A, S, M, R, K, orY; X2 is S, R, T, G, R, V, D, A, H, E, K, C, F, or Y; X3 is W, S, or F; and X4 is L orl (SEQ ID NO: 312). In some ments, the VH and VL are linked together by a flexible linker. In some embodiments a le linker comprises the amino acid sequence shown in SEQ ID NO: 333.

In r aspect, provided is CAR, which specifically binds to BCMA, wherein the CAR comprises an extracellular ligand-binding domain comprising: a VH region comprising a VH CDR1, VH CDR2, and VH CDR3 of the VH sequence shown in SEQ ID NO: 2, 3, 7, 8, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 37, 39, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 83, 87, 92, 78, 95, 97, 99, 101, 104, 106, 110, 112, 114, 76, 118, 120, 122, 112, 125, 127, 313, or 314; and/or a VL region comprising VL CDR1, VL 1O CDR2, and VL CDR3 of the VL sequence shown in SEQ ID NO: 1, 4, 5, 6, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 34, 36, 38, 40, 41, 43, 45, 47, 49, 51, 53, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 317, 81, 82, 84, 85, 86, 88, 89, 90, 91, 93, 94, 96, 98, 100,102,103,105,107,108,109,111,113,115,116,117,119,121,123,124,126,128, 315, or 316. In some embodiments, the VH and VL are linked together by a flexible linker.

In some embodiments a flexible linker comprises the amino acid sequence shown in SEQ ID NO: 333.

In some embodiments, a CAR of the invention comprises an extracellular ligand- binding domain having any one of partial light chain sequence as listed in Table 1 and/or any one of partial heavy chain sequence as listed in Table 1. In Table 1, the underlined sequences are CDR sequences ing to Kabat and in bold according to Chothia, mfor the heavy chain CDR2 sequences, the Chothia CDR sequence is ined and the Kabat CDR sequence is in bold.

Table 1 E IVLTQSPGTLSLSPG ERATLSCRASQSVS EVQLLESGGG SLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYGSPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 1) vss (SEQ ID NO: 2) P6E01/ EIVLTQSPGTLSLSPG ERATLSCRASQSVS EVQLLESGGG LVQPGGSLRLSCAASGFTFG mAb Light Chain Heavy Chain H3.AQ SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYGSPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 1) VSS (SEQ ID NO: 3) / EIVLTQSPGTLSLSPGERATLSC EVQLLESGGGLVQPGGSLRLSCAASGFTFG L3.KW/ RAstLGsFYLAWYQQKPGQAPRLLIYg SYAMTWVRQAPG KG LEWVSAISGSGGNT P6E01 ASSRATGI PDRFSGSGSGTDFTLTISRLEP FYADSVKGRFTISRDNSKNTLYLQMNSLRA EDFAVYYCKHYGWPPSFTFGQGTKVE|K EDTAVYYCARVSPIASGMDYWGQGTLVT (SEQ ID NO: 4) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 5) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVG EVQLLESGGGLVQPGGSLRLSCAASGFTFG DFYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG ISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 6) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KHYGWPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARARVSPIAALMDYWGQGTL NO: 4) VTVSS (SEQ ID NO: 7) EIVLTQSPGTLSLSPG ERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFYLAWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAISGSGGNT mAb Light Chain Heavy Chain H3.AP PDRFSGSGSGTDFTLTISRLEPEDFAVYYC KGRFTISRDNSKNTLYLQMNSLRA KHYGWPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAPMDYWGQGTLVT NO: 4) VSS (SEQ ID NO: 8) EIVLTQSPGTLSLSPGERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KHYGWPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 4) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG QQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAPMDYWGQGTLVT NO: 9) VSS (SEQ ID NO: 8) EIVLTQSPGTLSLSPGERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG YQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 9) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC KGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAALMDYWGQGTLVT NO: 10) VSS (SEQ ID NO: 7) EIVLTQSPGTLSLSPGERATLSCRASQSLG EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID E DTAVYYCARVSPIAAPMDYWGQGTLVT Light Chain Heavy Chain -NO: 10) VSS (SEQID NO: 8) EIVLTQSPGTLSLSPGERATLSCRASQSLG SGGGLVQPGGSLRLSCAASGFTFG SFYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 10) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVG EVQLLESGGGLVQPGGSLRLSCAASGFTFG MWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KHYGWPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAALMDYWGQGTLVT NO: 11) VSS (SEQ ID NO: 7) EIVLTQSPGTLSLSPGERATLSCRASQSVG SGGGLVQPGGSLRLSCAASGFTFG DFYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KHYGWPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAPMDYWGQGTLVT NO: 11) VSS (SEQ ID NO: 8) EIVLTQSPGTLSLSPGERATLSCRASQSVG EVQLLESGGGLVQPGGSLRLSCAASGFTFG YQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KHYGWPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 11) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVG SGGGLVQPGGSLRLSCAASGFTFG L3.PY/H DFYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 12) VSS (SEQ ID NO: 3) L1.G DF/ E IVLTQSPGTLSLSPG CRASQSVG EVQLLESGGG LVQPGGSLRLSCAASGFTFG mAb Light Chain Heavy Chain L3.NY/ DFYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT H3.AL |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAALMDYWGQGTLVT NO: 13) VSS (SEQ ID NO: 7) L1.G DF/ E PGTLSLSPG ERATLSCRASQSVG EVQLLESGGGLVQPGGSLRLSCAASGFTFG DFYLAWYQQKPGQAPRLLIYGASSRATG VRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAPMDYWGQGTLVT NO: 13) VSS (SEQ ID NO: 8) L1.G DF/ E IVLTQSPGTLSLSPG ERATLSCRASQSVG EVQLLESGGGLVQPGGSLRLSCAASGFTFG DFYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG ISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYNYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 14) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KHYGWPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 15) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT SGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA -Light Chain Heavy Chain HYNYQ—PPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARV—SPIASGMDYWGQGTLVT NO: 17) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG mWYQQKPGQAPRLLIYGAssRATGI SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC KGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFFLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG wWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT GSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO:21) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: E DTAVYYCARVSPIASGMDYWGQGTLVT 22) VSS (SEQ ID NO: 2) mAb Light Chain Heavy Chain EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT SGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KFYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 23) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQRKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 24) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAIDYSGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 16) TVSS (SEQ ID NO: 25) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISYQGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR PSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 16) TVSS (SEQ ID NO: 26) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISLTGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC KGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 27) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISHAGGN WO 66630 mAb Light Chain Heavy Chain PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID YYCARVSPIASGMDYWGQGTLV NO: 16) TVSS (SEQ ID NO: 28) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQLKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 29) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIYAGMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 30) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC KGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAEMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 31) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPG ERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCTRVSPIAAQMDYWGQGTLVT 2016/051808 Light Chain Heavy Chain -NO: 16) VSS (SEQID NO: 32) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 16) VSS (SEQ ID NO: 2) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYPSWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQRKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 24) E IVLTQSPGTLSLSPG E RATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYPSWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG IDYSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID YCARVSPIASGMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 25) EIVLTQSPGTLSLSPG ERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG YQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISYQGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 18) TVSS (SEQ ID NO: 26) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYPSWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISLTGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 27) L3. PY/L E IVLTQSPGTLSLSPG ERATLSCRASQSVS EVQLLESGGG LVQPGGSLRLSCAASGFTFG mAb Light Chain Heavy Chain 1.PS/H2 wvaQKPGQAPRLLIYGAssRATGI SYAMTWVRQAPG KG LEWVSAISHAGGN .HA PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 18) TVSS (SEQ ID NO: 28) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG mWYQQKPGQAPRLLIYGAssRATGI SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQLKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 29) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG SSYPSWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIYAGMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 30) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYPSWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAEMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 31) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG mWYQQKPGQAPRLLIYGAssRATGI SYAMTWVRQAPG KG ISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG SSYPSWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA -Light Chain Heavy Chain HYPYPPSQ—FTFGQGTKVEIK (SEQ ID EDTAVYYCTRVSPIAAQMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 32) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG MWYQQKPGQAPRLLIYGASSRATG MWVRQAPGKGLEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQRKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 24) E IVLTQSPGTLSLSPG E RASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG IDYSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 25) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISYQGGN |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID YYCARVSPIASGMDYWGQGTLV NO: 19) TVSS (SEQ ID NO: 26) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG MWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISLTGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 27) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISHAGGN GSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 19) TVSS (SEQ ID NO: 28) mAb Light Chain Heavy Chain EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQLKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 29) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIYAGMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 30) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAEMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 31) SPGTLSLSPG ERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG AHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT GSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCTRVSPIAAQMDYWGQGTLVT NO: 19) VSS (SEQ ID NO: 32) L3. PY/L E PGTLSLSPG ERATLSCRASQSVS EVQLLESGGG LVQPGGSLRLSCAASGFTFG mAb Light Chain Heavy Chain 1.FF/H2 SFFLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPGKGLEWVSAISGSGGNT .QR PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQRKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID YCARVSPIASGMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 24) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG flWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAIDYSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 25) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG flWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISYQGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 20) TVSS (SEQ ID NO: 26) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG PGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISLTGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 27) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG flWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISHAGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR PSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 20) TVSS (SEQ ID NO: 28) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFflWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQLKGRFTISRDNSKNTLYLQMNSLRA mAb Light Chain Heavy Chain QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 29) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFFLAWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIYAGMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 30) SPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFFLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAEMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 31) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG SFFLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID YCARVSPIAAQMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SFFLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCTRVSPIAAQMDYWGQGTLVT NO: 20) VSS (SEQ ID NO: 32) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG PHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQRKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 21) VSS (SEQ ID NO: 24) mAb Light Chain Heavy Chain EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG PHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISHAGGN |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR QHYPYPPSFTFGQGTKVEIK (SEQ ID AEDTAVYYCARVSPIASGMDYWGQGTLV NO: 21) TVSS (SEQ ID NO: 28) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG PHYLAWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAEMDYWGQGTLVT NO: 21) VSS (SEQ ID NO: 31) SPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG PGQAPRLLIYGASSRATG SYAMTWVRQAPG KG LEWVSAISGSGGNT |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC KGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIAAQMDYWGQGTLVT NO:21) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG wWYQQKPGQAPRLLIYGASSRATG SYAMTWVRQAPGKGLEWVSAISGSGGNT GSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCTRVSPIAAQMDYWGQGTLVT NO:21) VSS (SEQ ID NO: 32) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| MWVRQAPGKGLEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQRKGRFTISRDNSKNTLYLQMNSLRA KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 22) VSS (SEQ ID NO: 24) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAIDYSGGNT 2016/051808 mAb Light Chain Heavy Chain .DY PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 22) VSS (SEQ ID NO: 25) SPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISYQGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC VKGRFTISRDNSKNTLYLQMNSLR KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARVSPIASGMDYWGQGTLV 22) TVSS (SEQ ID NO: 26) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISLTGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 22) VSS (SEQ ID NO: 27) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISHAGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: YYCARVSPIASGMDYWGQGTLV 22) TVSS (SEQ ID NO: 28) E IVLTQSPGTLSLSPG E RATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQLKGRFTISRDNSKNTLYLQMNSLRA KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 22) VSS (SEQ ID NO: 29) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT SGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIYAGMDYWGQGTLVT 2016/051808 Light Chain Heavy Chain E IVLTQSPGTLSLSPG ERATLSCRASQSVS EVQLLESGGG LVQPGGSLRLSCAASGFTFG 3.KY/H3 SSYLAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPGKGLEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KYYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCTRVSPIAAQMDYWGQGTLVT 22) VSS (SEQ ID NO: 32) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAIDYSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KFYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 23) VSS (SEQ ID NO: 25) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYAWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAISYQGGN PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TFYADSVKGRFTISRDNSKNTLYLQMNSLR PSFTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARVSPIASGMDYWGQGTLV 23) TVSS (SEQ ID NO: 26) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISLTGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KFYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 23) VSS (SEQ ID NO: 27) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADQLKGRFTISRDNSKNTLYLQMNSLRA KFYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIASGMDYWGQGTLVT 23) VSS (SEQ ID NO: 29) mAb Light Chain Heavy Chain EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KFYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIYAGMDYWGQGTLVT 23) VSS (SEQ ID NO: 30) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYAWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KFYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIAAEMDYWGQGTLVT 23) VSS (SEQ ID NO: 31) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| SYAMTWVRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA KFYPYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIAAQMDYWGQGTLVT 23) VSS (SEQ ID NO: 3) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFG SSYJWYQQKPGQAPRLLIYGASSRATG| VRQAPG KG LEWVSAISGSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA PSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCTRVSPIAAQMDYWGQGTLVT 23) VSS (SEQ ID NO: 32) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISDSGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYGSWPLTFGQGTKVEIK (SEQ ID YYCARYWPMDIWGQGTLVTVSS NO: 34) (SEQ ID NO: 33) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRATG SYAMNWVRQAPGKGLEWVSAISDSGGS mAb Light Chain Heavy Chain M_CO6 |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC VKGRFTISRDNSKNTLYLQMNSL QQYQRWPLTFGQGTKVEIK (SEQ ID RAEDTAVYYCARYWPMSLWGQGTLVTVS NO: 36) S (SEQ ID NO: 35) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS QQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISDSGGS GIPDRFSGSGSGTDFTLTISRLEPEDFAVY MWYADSVKGRFTISRDNSKNTLYLQMNS YCQQYQSWPLTFGQGTKVEIK (SEQ ID LRAEDTAVYYCARYWPMSLWGQGTLVTV NO: 38) SS (SEQ ID NO: 37) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDAsIRAT SYAMNWVRQAPGKGLEWVSAISdFGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQTWPLTFGQGTKVEIK (SEQ ID YYCARYWPMDIWGQGTLVTVSS NO: 40) (SEQ ID NO: 39) SPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISDSGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQGWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDIWGQGTLVTVSS NO: 41) (SEQ ID NO: 33) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAITASGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYERWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMSLWGQGTLVTVSS NO: 43) (SEQ ID NO: 42) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SLYJWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISDSGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQVWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMSLWGQGTLVTVSS Light Chain Heavy Chain -NO: 45) (SEQID NO: 44) A02_Rd E IVLTQSPGTLSLSPG E RASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS 4_6nM SSYLAWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISdSGGSR _C25 G|PDRFSGSGSGTDFTLTISRLEPEDFAVY WYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYLDWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMTPWGQGTLVTVSS NO: 47) (SEQ ID NO: 46) A02_Rd SPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFS 4_6nM SSYJWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAVLdSGGS _c22 GIPDRFSGSGSGTDFTLTISRLEPEDFAVY TYYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQVWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMTPWGQGTLVTVSS NO: 49) (SEQ ID NO: 48) A02_Rd EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS 4_6nM VIYLAWYQQKPGQAPRLLMYDASIRATG SYAMNWVRQAPGKGLEWVSAISdSGGSR _c19 |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC WYADSVKGRFTISRDNSKNTLYLQMNSLR QQYLAWPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMSDWGQGTLVTVS 51) S (SEQ ID NO: 50) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISdSGGSK GIPDRFSGSGSGTDFTLTISRLEPEDFAVY WYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYFTWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMSLWGQGTLVTVSS NO: 53) (SEQ ID NO: 52) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAIGGSGGS GIPDRFSGSGSGTDFTLTISRLEPEDFAVY LPYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYERWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 55) S (SEQ ID NO: 54) A02_Rd E PGTLSLSPG E RATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS Light Chain Heavy Chain VEYLAWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISdSGGS SGSGSGTDFTLTISRLEPEDFAVY GWYADSVKGRFTISRDNSKNTLYLQMNSL YCQQYARWPLTFGQGTKVEIK (SEQ ID VYYCARYWPMSLWGQGTLVTVS NO: 57) S (SEQ ID NO: 56) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS EWJWYQQKPGQAPRLLMYDASIRATG SYAMNWVRQAPGKGLEWVSAVLdSGGS |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC TYYADSVKGRFTISRDNSKNTLYLQMNSLR QQYFGWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMSLWGQGTLVTVSS NO: 59) (SEQ ID NO: 58) EIVLTQSPGTLSLSPGERATLSCRASQSVE EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISdSGGSC GIPDRFSGSGSGTDFTLTISRLEPEDFAVY KGRFTISRDNSKNTLYLQMNSLR YCQQYAHWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMTPWGQGTLVTVSS NO: 61) (SEQ ID NO: 60) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS sstWYQQKPGQAPRLLMYDAsIRAT SYAMNWVRQAPGKGLEWVSAIFaSGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQRWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMTPWGQGTLVTVSS NO: 63) (SEQ ID NO: 62) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS flWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISgWGGS GIPDRFSGSGSGTDFTLTISRLEPEDFAVY LPYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQRWPLTFGQGTKVEIK (SEQ ID YYCARYWPMDSWGQGTLVTVS NO: 65) S (SEQ ID NO: 64) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRATG SYAMNWVRQAPGKGLEWVSAIMsSGGP |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC LYYADSVKGRFTISRDNSKNTLYLQMNSLR -Light Chain Heavy Chain VWPLTFGQGTKVEIKv (SEQ ID YYCARY—WPMALWGQGTLVTVSS NO: 67) (SEQ ID NO: 66) EIVLTQSPGTLSLSPGERATLSCGPSQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAILmSGGS GIPDRFSGSGSGTDFTLTISRLEPEDFAVY TYYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQSWPLTFGQGTKVEIK (SEQ ID YYCARYWPMSLWGQGTLVTVSS NO: 69) (SEQ ID NO: 68) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS WWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISdSGGY GIPDRFSGSGSGTDFTLTISRLEPEDFAVY RYYADSVKGRFTISRDNSKNTLYLQMNSLR SWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMSLWGQGTLVTVSS NO: 71) (SEQ ID NO: 70) A02_Rd EIVLTQSPGTLSLSPGERATLSCRGGQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS 4_O.6n SSYJWYQQKPGQAPRLLMYDAsIRAT SYAMNWVRQAPGKGLEWVSAILsSGGST M_C01 GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR (P5AC1) YCQQYQSWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDIWGQGTLVTVSS NO: 73) (SEQ ID NO: 72) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS wvaQKPGQAPRLLMYDAsIRATG SYAMNWVRQAPGKGLEWVSAILdSGGST |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC YYADSVKGRFTISRDNSKNTLYLQMNSLR PLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMSPWGQGTLVTVSS NO: 75) (SEQ ID NO: 74) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS mvaQKPGQAPRLLIYDAssRAPGI SYPMSWVRQAPG KG LEWVSAIGGSGGST PDRFSGSGSGTDFTLTISRLEPEDFAVYYC YYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSTSPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMDSWGQGTLVTVS 77) S (SEQ ID NO: 76) Light Chain Heavy Chain EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLIYDAsSRAPG SYPMSWVRQAPG KG LEWVSAIGGSGGSL |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSVWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 79) S (SEQ ID NO: 78) C01_Rd EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS 4_6nM AIYJWYQQKPGQAPRLLIYDASSRAPG| SYPMSWVRQAPG KG LEWVSAIGGSGGSL _C26 SGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSAWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 317) S (SEQ ID NO: 78) C01_Rd EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS 4_6nM SVYJWYQQKPGQAPRLLIYDASSRAPG| SYPMSWVRQAPG KG LEWVSAIGgSGGSL _c1o PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSTWPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMDSWGQGTLVTVS 79) S (SEQ ID NO: 78) SPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLIYDASSRAPG| SYPMSWVRQAPG KG LEWVSAIGgSGGSL SGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSRWPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMDSWGQGTLVTVS 81) S (SEQ ID NO: 78) C01_Rd EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS 4_6nM MWYQQKPGQAPRLLIYDAssRAPGI SYPMSWVRQAPG KG LEWVSAIGgSGGSL _c20 PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSAFPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMDSWGQGTLVTVS 82) S (SEQ ID NO: 78) C01_Rd EIVLTQSPGTLSLSPGERATLSCWLSQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS mAb Light Chain Heavy Chain MWYQQKPGQAPRLLIYDASSRAPG| SYPMSWVRQAPG KGLEWVSAIGgSGGW PDRFSGSGSGTDFTLTISRLEPEDFAVYYC SYYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSEWPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMDSWGQGTLVTVS 84) S (SEQ ID NO: 83) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS GQAPRLLIYDAssRAPGI SYPMSWVRQAPG KG IGgSGGSL PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSSWPLTFGQGTKVEIK (SEQ ID NO: YYCARYWPMDSWGQGTLVTVS 85) S (SEQ ID NO: 78) EIVLTQSPGTLSLSPGERATLSCRASQSVS SGGGLVQPGGSLRLSCAASGFTFS SIFJWYQQKPGQAPRLLIYDASSRAPG| SYPMSWVRQAPG KG LEWVSAIGgSGGSL PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSAWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 86) S (SEQ ID NO: 78) EIVLTQSPGTLSLSPGERATLSCACSQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLIYDASSRAPG| SYPMSWVRQAPG KG LEWVSATVgSGGSI PDRFSGSGSGTDFTLTISRLEPEDFAVYYC GYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSAWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 88) S (SEQID NO: 87) SPGTLSLSPGERATLSCRASCDVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS mvaQKPGQAPRLLIYDAssRAPGI SYPMSWVRQAPG KG LEWVSAIGgSGGSL PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYMRSPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMDSWGQGTLVTVS 89) S (SEQ ID NO: 78) EIVLTQSPGTLSLSPGERATLSCRASEAVP EVQLLESGGGLVQPGGSLRLSCAASGFTFS mvaQKPGQAPRLLIYDAssRAPGI SYPMSWVRQAPG KG LEWVSAIGgSGGSL PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGTISRDNSKNTLYLQMNSLRAE mAb Light Chain Heavy Chain QQYSAFPLTFGQGTKVEIK (SEQ ID NO: DTAVYYCARYWPMDSWGQGTLVTVSS 90) (SEQ ID NO: 78) EIVLTQSPGTLSLSPGERATLSCCSSQSVSS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLIYDASSRAPGI SYPMSWVRQAPG KG LEWVSAIGgSGGSL PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYSAFPLTFGQGTKVEIK (SEQ ID NO: YYCARYWPMDSWGQGTLVTVS 91) S (SEQ ID NO: 78) EIVLTQSPGTLSLSPGERATLSCRASVRVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAISdSGGSR GIPDRFSGSGSGTDFTLTISRLEPEDFAVY WYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYMKWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCTRYWPMDIWGQGTLVTVSS NO: 93) (SEQ ID NO: 92) E IVLTQSPGTLSLSPG E RATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS AAYLAWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAIGgSGGSL G|PDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR CWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 94) S (SEQ ID NO: 78) SPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAIGgSGGSI GIPDRFSGSGSGTDFTLTISRLEPEDFAVY HYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQCWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 96) S (SEQ ID NO: 95) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS PGQAPRLLMYDASIRAT SYPMSWVRQAPG KGLEWVSAngflT GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQSWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS Light Chain Heavy Chain -NO: 98) S (SEQID NO: 97) COMBO E IVLTQSPGTLSLSPG E RATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAIGgSGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQSWPLTFGQGTKVEIK (SEQ ID YYCARYWPMDPWGQGTLVTVS NO: 100) S (SEQ ID NO: 99) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAIGgSGGSL GIPDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQSWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 38) S (SEQ ID NO: 78) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS PGQAPRLLMYDASIRATG SYPMSWVRQAPG KG LEWVSAIGGSGGSL |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC KGRFTISRDNSKNTLYLQMNSLR PLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 102) S (SEQ ID NO: 101) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS YLYLAWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPGKGLEWVSAIGGSGGSL G|PDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYMEWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 103) S (SEQ ID NO: 78) E IVLTQSPGTLSLSPG E RATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS AQYLAWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAIFASGGST G|PDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQAWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 105) S (SEQ ID NO: 104) COMBO E IVLTQSPGTLSLSPG ERATLSCRASQSVS SGGG LVQPGGSLRLSCAASGFTFS mAb Light Chain Heavy Chain _Rd4_6 SSYAWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KGLEWVSAIGGSGTW nM_C0 GIPDRFSGSGSGTDFTLTISRLEPEDFAVY TYYADSVKGRFTISRDNSKNTLYLQMNSLR 8 YCQQYQKWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 107) S (SEQ ID NO: 106) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS PGQAPRLLMYDASIRAT VRQAPG KG IGGSGGSL GIPDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYRAWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 108) S (SEQ ID NO: 78) EIVLTQSPGTLSLSPG ERATLSCRASIAVSS EVQLLESGGGLVQPGGSLRLSCAASGFTFS TYLAWYQQKPGQAPRLLMYDASIRATG| SYPMSWVRQAPG KG LEWVSAIGGSGGSL PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYMVWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 109) S (SEQ ID NO: 78) EIVLTQSPGTLSLSPGERATLSCRPRQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSALFGSGGST GIPDRFSGSGSGTDFTLTISRLEPEDFAVY YYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQDWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 111) S (SEQ ID NO: 110) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAIGGSGGSL GIPDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQSWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDIWGQGTLVTVSS NO: 38) (SEQ ID NO: 112) SPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS mvaQKPGQAPRLLMYDAsIRAT SYPMSWVRQAPG KG LEWVSAIGGSGGSL GIPDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR -Light Chain Heavy Chain EWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARY_WPMDIWGQGTLVTVSS NO: 113) (SEQ ID NO: 112) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS flWYQQKPGQAPRLLMYDAsIRAT SYPMSWVRQAPG KG LEWVSAALGSGGS GIPDRFSGSGSGTDFTLTISRLEPEDFAVY VKGRFTISRDNSKNTLYLQMNSLR YCQQYMSWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 115) S (SEQ ID NO: 114) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLIYDASIRATG SYPMSWVRQAPG KG LEWVSAIGGSGGST |PDRFSGSGSGTDFTLTISRLEPEDFAVYYC YYADSVKGRFTISRDNSKNTLYLQMNSLR QQYKSWPLTFGQGTKVEIK (SEQ ID NO: AEDTAVYYCARYWPMDSWGQGTLVTVS 116) S (SEQ ID NO: 76) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAIGGSGGSL GIPDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR GWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDIWGQGTLVTVSS NO: 117) (SEQ ID ) EIVLTQSPGTLSLSPGERATLSCRASQPISS EVQLLESGGGLVQPGGSLRLSCAASGFTFS flWYQQKPGQAPRLLMYDASIRATG| SYPMSWVRQAPG KG LEWVSAIGGSGGSL PDRFSGSGSGTDFTLTISRLEPEDFAVYYC PYADSVKGRFTISRDNSKNTLYLQMNSLR QQYQGWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMADWGQGTLVTVS NO: 119) S (SEQ ID NO: 118) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDAsIRAT SYAMNWVRQAPGKGLEWVSAISDSGGF GIPDRFSGSGSGTDFTLTISRLEPEDFAVY VYYADSVKGRFTISRDNSKNTLYLQMNSL YCQQYEFWPLTFGQGTKVEIK (SEQ ID RAEDTAVYYCARYWPMDSWGQGTLVTV NO: 121) SS (SEQ ID NO: 120) mAb Light Chain Heavy Chain EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSAIGGSGGS GIPDRFSGSGSGTDFTLTISRLEPEDFAVY TYYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYMSWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMSLWGQGTLVTVSS NO: 123) (SEQ ID NO: 122) EIVLTQSPGTLSLSPGERATLSCRASQGIS EVQLLESGGGLVQPGGSLRLSCAASGFTFS PGQAPRLLMYDAsIRAT SYPMSWVRQAPG KG LEWVSAIGGSGGSL GIPDRFSGSGSGTDFTLTISRLEPEDFAVY PYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYAYWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDIWGQGTLVTVSS NO: 124) (SEQ ID NO: 112) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS SSYJWYQQKPGQAPRLLMYDASIRAT SYAMNWVRQAPGKGLEWVSACLDSGGS SGSGSGTDFTLTISRLEPEDFAVY TYYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYQGWPLTFGQGTKVEIK (SEQ ID AEDTAVYYCARYWPMDSWGQGTLVTVS NO: 126) S (SEQ ID NO: 125) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS MWYQQKPGQAPRLLMYDASIRAT SYPMSWVRQAPG KG LEWVSAALGSGGS GIPDRFSGSGSGTDFTLTISRLEPEDFAVY TYYADSVKGRFTISRDNSKNTLYLQMNSLR YCQQYGSWPITFGQGTKVEIK (SEQ ID YYCARYWPMSLWGQGTLVTVSS NO: 128) (SEQ ID NO: 127) EIVLTQSPGTLSLSPGERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFG PGQAPRLLIYGAsSRATGI SYAMTWVRQAPG KG LEWVSAIDYSGGNT PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYPYPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCARVSPIASGMDYWGQGTLVT NO: 18) VSS (SEQ ID NO: 25) EIVLTQSPGTLSLSPGERATLSCRASQLGS EVQLLESGGGLVQPGGSLRLSCAASGFTFG FYLAWYQQKPGQAPRLLIYGASSRATG|P SYAMTWVRQAPG KG LEWVSAISGSGGNT mAb Light Chain Heavy Chain DRFSGSGSGTDFTLTISRLEPEDFAVYYCQ FYADSVKGRFTISRDNSKNTLYLQMNSLRA HYNYPPSFTFGQGTKVEIK (SEQ ID NO: EDTAVYYCARVSPIAAPMDYWGQGTLVT 80) VSS (SEQ ID NO: 8) E|VLTQSPGTLSLSPGERATLSC EVQLLESGGGLVQPGGSLRLSCAASG FTFX X1X2X3X4X5X6X7X8X9X10X11X12WYQQKP leXZMX3WVRQAPG SAX4X5X6X GQAPRLLMYX13ASX14RAX15G|PDRFSGS 7GX8X9X10X11YADX12X13KGRFTISRDNSKN GSGTDFTLTISRLEPEDFAVYYCX16X17YX1 TLYLQMNSLRAEDTAVYYCARVSP|X14X15X 8X19PPSFTFGQGTKVEIK, n X1 is 15M TLVTVSS, wherein X1 is G R, G, W, A, or C; X2 is A, P, G, L, C, or S; or S, X2 is A or P; X3 is T, N, or S; X4 is |, X3 is S, G, or R; X4 is Q, C, E, V, or |; X5 V, T, H, L, A, or C; X5 is S, D, G, T, |, L, F, is S, P, G, A, R, or D; X6 is V, G, |, or L; M, or V; X6 is G, Y, L, H, D, A, S, or M; X7 X7 is S, E, D, P, or G; X8 is S, P, F, A, M, is S, Q, T, A, F, or W; X8 is G or T; X9 is N, E, V, N, D, or Y; X9 is |, T, V, E, S, A, M, S, P, Y, W, or F; X10 is S, T, |, L, T, A, R, V, Q, Y, H, R, or F; X10 is Y or F; X11 is L, K, G, or C; X11 is F, Y, P, W, H, or G; X12 is W, or P; X12 is A, S, or G, X13 is G or D; V, R, or L; X13 is G or T; X14is A or Y; X15 X14 is S or |; X15 is Tor P; X16is Qor K; is A or S; and X16is G, Q, L, P, or E (SEQ X17 is H or Y; XlgiS G, N, or P; and X19 is ID NO: 313); or S, W, or Y (SEQ ID NO: 315); or EVQLLESGGGLVQPGGSLRLSCAASG FTFX E|VLTQSPGTLSLSPGERATLSC 15YX2MX3WVRQAPG KGLEWVSAX4X5X6X X1X2X3X4X5X6X7X8X9X10X11X12WYQQKP 7GX8X9X10X11YADX12X13KGRFTISRDNSKN GQAPRLLMYX13ASX14RAX15G|PDRFSGS TLYLQMNSLRAEDTAVYYCARYWPMX14X GSGTDFTLTISRLEPEDFAVYYCQQYX16X1 15WGQGTLVTVSS, wherein X1 is G or S, 7X18PX19FGQGTKVEIK, wherein X1 is R, X2 is A or P; X3 is T, N, or S; X4 is |, V, T, G, W, A, or C; X2 is A, P, G, L, C, or S; X3 H, L, A, or C; X5 is S, D, G, T, |, L, F, M, or is S, G, or R; X4 is Q, C, E, V, or |; X5 is V; X6 is G, Y, L, H, D, A, S, or M; X7 is S, S, L, P, G, A, R, or D; X5 is V, G, or |; X7 Q, T, A, F, or W; X8 is G or T; X9 is N, S, is S, E, D, or P; X8 is S, P, F, A, M, E, V, P, Y, W, or F; X10 is S, T, |, L, T, A, R, V, K, mAb Light Chain Heavy Chain N, D, or Y; X9 is I, T, V, E, S, A, M, Q, Y, G, or C; X11 is F, Y, P, W, H, or G; X12 is H, or R; X10 is Y or F; X11 is L, W, or P; V, R, or L; X13 is G or T; X14is D, S, T, or X12 is A, S, or G, X13 is G or D; X14 is S A; and X15is I, S, L, P, or D (SEQ ID NO: or I; X15 is Tor P; X16 is G, Q, E, L, F, A, 314) S, M, R, K, or Y; X17 is S, R, T, G, R, V, D, A, H, E, K, C, F, or Y; X18 is W, S, or F; and X19 is L or I (SEQ ID NO: 316) EIVLTQSPGTLSLS PG ERATLSCRASQSVS EVQLLESGGGLVQPGGSLRLSCAASGFTFS QQKPGQAPRLLIYGASSRAYGI SYAMSWVRQAPG KG LEWVSAISASGGST PDRFSGSGSGTDFTLTISRLEPEDFAVYYC YYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYGSPPLFTFGQGTKVEIK (SEQ ID EDTAVYYCARLSWSGAFDNWGQGTLVTV NO: 401) SS (SEQ ID NO: 378) EIVLTQSPGTLSLSPGERATLSCRASQNVS SGGGLVQPGGSLRLSCAASGFTFR SSYJWYQQKPGQAPRLLIYGASYRATGI SYAMSWVRQAPG KG LEWVSAISGSGGST PDRFSGSGSGTDFTLTISRLEPEDFAVYYC FYADSVKGRFTISRDNSKNTLYLQMNSLRA QHYGSPPSFTFGQGTKVEIK (SEQ ID EDTAVYYCATVGTSGAFGIWGQGTLVTVS NO: 379) S (SEQ ID NO: 380) Also provided herein are CDR portions of extracellular ligand-binding domains of CARS to BCMA ding Chothia, Kabat CDRs, and CDR contact regions). Determination of CDR regions is well within the skill of the art. It is understood that in some embodiments, CDRs can be a combination of the Kabat and Chothia CDR (also termed "combined CRs" or "extended . In some ments, the CDRs are the Kabat CDRs. In other embodiments, the CDRs are the Chothia CDRs. In other words, in embodiments with more than one CDR, the CDRs may be any of Kabat, Chothia, combination CDRs, or combinations thereof. Table 2 provides es of CDR sequences ed herein.

Table 2 Heavy Chain mAb CDRH1 CDRHZ CDRH3 P6E01 SYAMT (SEQ ID NO: 129) AISGSGGNTFYADSV VSPIASGMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: P6E01/P6E01M-LGF/L3-K GFTFGSY (SEQ ID NO: 132) (Chothia) 134) W/P6E01; 130HCh0th‘la),- SGSGGN ( SEQ ID L1.LGF/L3.NY/P6E01; GFTFGSYAMT (SEQ ID NO:133)(Kabat) L1.GDF/L3.NY/P6E01; NO: 131) (extended) L3.KW/P6E01; L3.PY/P6E01; L3.NY/P6E01; L3.PY/L1.PS/P6E01; L3.PY/L1.AH/P6E01; L3.PY/L1.FF/P6E01; L3.PY/L1.PH/P6E01; L3.PY/L3.KY/P6E01; L3.PY/L3.KF/P6E01; and L3.PY/P6E01.

H3.AQ SYAMT(SEQ|DNO:129) AISGSGGNTFYADSV VSPIAAQMDY ForthefollowingmAbs: ); KG (SEQ ID NO: (SEQ ID NO: P6E01/H3'AQ; GFTFGSY (SEQ ID NO: 132) (Chothia) 135) L1.LG F/L3.KW/H3.AQ; 130) (Chothia); SGSGGN (SEQ ID /L3.PY/H3.AQ GFTFGSYAMT (SEQ ID NO:133)(Kabat) NO: 131) (extended) H3.AL SYAMT(SEQ|DNO: 129) AISGSGGNTFYADSV VSPIAALMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L1.LGF/L3.KW/H3.AL; GFTFGSY (SEQ ID NO: 132) ia) 136) L1.LGF/L3.NY/H3.AL; and 130) (Chothia); SGSGGN (SEQ ID /L3.NY/H3.AL.

GFTFGSYAMT (SEQ ID NO:133)(Kabat) NO: 131) (extended) H3.AP SYAMT(SEQ|DNO: 129) AISGSGGNTFYADSV VSPIAAPMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L1.LGF/L3.KW/H3.AP; Y (SEQ ID NO: 132) (Chothia) 137) L1.LGF/L3.PY/H3.AP; 130) (Chothia); SGSGGN (SEQ ID L1.LGF/L3NY/H3.AP; GFTFGSYAMT (SEQ ID NO:133)(Kabat) L1.GDF/L3.KW/H3.AP; NO: 131) (extended) L1.GDF/L3NY/H3.AP; P6AP.

H2.QR SYAMT(SEQ|DNO: 129) AISGSGGNTFYADQ VSPIASGMDY For the following mAbs: RKG (SEQ ID NO: (SEQ ID NO: L3.PY/H2.QR; GFTFGSY (SEQ ID NO: 138) (Chothia) L1.PS/H2.QR; 130)(Chothia); SGSGGN (SEQ ID L3.PY/L1.AH/H2.QR; GFTFGSYAMT (SEQ ID NO:133)(KABAT) L3.PY/L1.FF/H2.QR; NO: 131) (extended) L3.PY/L1.PH/H2.QR; and L3.PY/L3.KY/H2.QR.

H2.DY SYAMT (SEQ ID NO: 129) AIDYSGGNTFYADSV VSPIASGMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H2.DY; P6DY; GFTFGSY (SEQ ID NO: 139) (Chothia) 134) L3.PY/L1.PS/H2.DY; 130)(Chothia); DYSSGN (SEQ ID L1.AH/H2.DY; GFTFGSYAMT (SEQ ID NO:140)(KABAT) L3.PY/L1.FF/H2.DY; NO: 131) (extended) L3.PY/L3.KY/H2.DY; and L3.PY/L3.KF/H2.DY.

H2.YQ SYAMT(SEQ|DNO:129) AISYQGGNTFYADSV VSPIASGMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H2.YQ; GFTFGSY (SEQ ID NO: 141) (Chothia) 134) L3.PY/L1.PS/H2.YQ; 130)(Chothia); SYQGGN (SEQ ID L3.PY/L1.AH/H2.YQ; YAMT (SEQ ID NO:142)(KABAT) L3.PY/L1.FF/H2.YQ; NO: 131) ded) L3.KY/H2.YQ; and L3.PY/L3.KF/H2.YQ.

H2.LT SYAMT (SEQ ID NO: 129) AISLTGGNTFYADSV VSPIASGMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H2.LT; GFTFGSY (SEQ ID NO: 143) (Chothia) 134) 2016/051808 L3.PY/L1.PS/H2.LT; 130) (Chothia); SLTGGN (SEQ ID L3.PY/L1.AH/H2.LT; GFTFGSYAMT (SEQ ID NO:144) (KABAT) L3.PY/L1.FF/H2.LT; NO: 131) (extended) L3.PY/L3.KY/H2.LT; and L3.PY/L3.KF/H2.LT.

H2.HA SYAMT (SEQ ID NO: 129) AISHAGGNTFYADSV VSPIASGMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H2.HA; GFTFGSY (SEQ ID NO: 145) (Chothia) 134) L3.PY/L1.AH/H2.HA; 130) (Chothia); SHAGGN (SEQ ID L3.PY/L1.FF/H2.HA; GFTFGSYAMT (SEQ ID NO:146) (KABAT) L1.PH/H2.HA; and NO: 131) ded) L3.KY/H2.HA.

H2.QL SYAMT (SEQ ID NO:129) AISGSGGNTFYADQL VSPIASGMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H2.QL; GFTFGSY (SEQ ID NO: 147) (Chothia) 134) L3.PY/L1.PS/H2.QL; 130) (Chothia); SGSGGN (SEQ ID L3.PY/L1.AH/H2.QL; GFTFGSYAMT (SEQ ID NO:133) ) L3.PY/L1.FF/H2.QL; NO: 131) (extended) L3.PY/L3.KY/H2.QL; and L3.KF/H2.QL.

H3.YA SYAMT (SEQ ID NO:129) AISGSGGNTFYADSV VSPIYAGMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H3.YA; GFTFGSY (SEQ ID NO: 132) (Chothia) 148) L3.PY/L1.PS/H3.YA; 130) (Chothia); SGSGGN (SEQ ID L3.PY/L1.AH/H3.YA; GFTFGSYAMT (SEQ ID NO:133) (Kabat) L3.PY/L1.FF/H3.YA; NO: 131) ded) L3.PY/L3.KY/H3.YA; and L3.PY/L3.KF/H3.YA.

H3.AE SYAMT (SEQ ID NO: 129) AISGSGGNTFYADSV VSPIAAEMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H3.AE; GFTFGSY (SEQ ID NO: 132) (Chothia) 149) L3.PY/L1.AH/H3.AE; 130)(Chothia); SGSGGN (SEQ ID L3.PY/L1.FF/H3.AE; GFTFGSYAMT (SEQ ID NO:133)(Kabat) L3.PY/L1.PH/H3.AE; and NO: 131) (extended) L3.PY/L3.KF/H3.AE.

H3.TAQ SYAMT (SEQ ID NO: 129) AISGSGGNTFYADSV VSPIAAQMDY For the following mAbs: (Kabat); KG (SEQ ID NO: (SEQ ID NO: L3.PY/H3.TAQ; GFTFGSY (SEQ ID NO: 132) (Chothia) 135) L3.PY/L1.PS/H3.TAQ; 130)(Chothia); SGSGGN (SEQ ID L3.PY/L1.AH/H3.TAQ; GFTFGSYAMT (SEQ ID )(Kabat) L1.FF/H3.TAQ; NO: 131) (extended) L3.PY/L1.PH/H3.TAQ; and L3.PY/L3.KF/H3.TAQ.

P5A2_VHVL and SYAMN (SEQ ID NO: AISDSGGSTYYADSV YWPMDI (SEQ A02_Rd4_6nM_CO3 150) (Kabat); KG ID NO: 155) Y (SEQ ID NO: (SEQ ID NO: 153) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDSGGS (SEQ ID NO: 152) (extended) NO: 154) (Kabat) COMBO_Rd4_O.6nM_C17; SYPMS (SEQ ID NO: 156) AIGGSGGSLPYADSV YWPMDI (SEQ COMBO_Rd4_O.6nM_C14; (Kabat); KG ID NO: 155) COMBO_Rd4_O.6nM_C29; GFTFSSY (SEQ ID NO: (SEQ ID NO: 158) and 151) (Chothia); (Chothia) COMBO_Rd4_O.6nM_CO9 YPMS (SEQ ID GGSGGS (SEQ ID NO: 157) (extended) NO: 159 ) (Kabat) C01_Rd4_6nM_CO4; SYPMS (SEQ ID NO: 156) AIGGSGGSLPYADSV YWPMDS (SEQ C01_Rd4_0.6nM_CO3; (Kabat); KG ID NO: 161) C01_Rd4_0.6nM_CO6; GFTFSSY (SEQ ID NO: (SEQ ID NO: 158) Rd4_O.6nM_C02; 151) (Chothia); (Chothia) COMBO_Rd4_6nM_C21; GFTFSSYPMS (SEQ ID GGSGGS (SEQ ID C01_Rd4_6nM_C26; NO: 157) (extended) NO:159)(Kabat) COMBO_Rd4_O.6nM_C19; C01_Rd4_6nM_C24; C01_Rd4_6nM_C20; C01_Rd4_0.6nM_CO9; Rd4_O.6nM_C21; C01_Rd4_0.6nM_CO4_C2 7; C01_Rd4_0.6nM_C16; C01_Rd4_6nM_C10; Rd4_O.6nM_C20 P5C1_VHVL (PC1) and SYPMS (SEQ ID NO: 156) AIGGSGGSTYYADSV YWPMDS (SEQ COMBO_Rd4_O.6nM_C3O (Kabat); KG ID NO: 161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 162) 151) (Chothia); (Chothia) GFTFSSYPMS (SEQ ID GGSGGS (SEQ ID NO: 157) (extended) NO: 159 ) (Kabat) A02_Rd4_0.6nM_CO6 SYAMN (SEQ ID NO: AISDSGGSAWYADS YWPMSL (SEQ 150) (Kabat); VKG ID NO: 164) GFTFSSY (SEQ ID NO: (SEQ ID NO: 163) 151) (Chothia); ia) GFTFSSYAMN (SEQ ID SDSGGS (SEQ ID NO: 152) (extended) NO: 154) ) A02_Rd4_0.6nM_CO9 SYAMN (SEQ ID NO: AISDSGGSAWYADS YWPMSL (SEQ 150) ); VKG ID NO: 164) GFTFSSY (SEQ ID NO: (SEQ ID NO: 163) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDSGGS (SEQ ID NO: 152) (extended) NO:154)(Kabat) A02_Rd4_0.6nM_C16; SYAMN (SEQ ID NO: AISDFGGSTYYADSV YWPMDI (SEQ A02_Rd4_6nM_C16 150) (Kabat); KG ID NO: 155) (P5A16) GFTFSSY (SEQ ID NO: (SEQ ID NO: 165) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDFGGS (SEQ ID NO: 152) (extended) NO: 166) ) A02_Rd4_6nM_C01 SYAMN (SEQ ID NO: AITASGGSTYYADSV YWPMSL (SEQ 150) (Kabat); KG ID NO: 164) GFTFSSY (SEQ ID NO: (SEQ ID NO: 167) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID TASGGS (SEQ ID NO: 152) (extended) NO: 168) (Kabat) A02_Rd4_6nM_C26 SYAMN (SEQ ID NO: AISDSGGSTYYADSV YWPMSL (SEQ 150) (Kabat); KG ID NO: 164) GFTFSSY (SEQ ID NO: (SEQ ID NO: 153) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDSGGS (SEQ ID NO: 152) (extended) NO: 154) (Kabat) A02_Rd4_6nM_C25 SYAMN (SEQ ID NO: AISDSGGSRWYADS YWPMTP (SEQ 150) (Kabat); VKG ID NO: 170) GFTFSSY (SEQ ID NO: (SEQ ID NO: 169) 151) (Chothia); ia) GFTFSSYAMN (SEQ ID SDSGGS (SEQ ID NO: 152) (extended) NO: 154) ) A02_Rd4_6nM_C22 SYAMN (SEQ ID NO: GSTYYADSV YWPMTP (SEQ 150) (Kabat); KG ID NO: 170) GFTFSSY (SEQ ID NO: (SEQ ID NO: 171) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID LDSGGS (SEQ ID NO: 152) (extended) NO: 172) (Kabat) A02_Rd4_6nM_C19 SYAMN (SEQ ID NO: AISDSGGSRWYADS YWPMSD (SEQ 150) (Kabat); VKG ID NO: 173) GFTFSSY (SEQ ID NO: (SEQ ID NO: 169) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDSGGS (SEQ ID NO: 152) (extended) NO: 154) (Kabat) A02_Rd4_0.6nM_CO3 SYAMN (SEQ ID NO: AISDSGGSKWYADS YWPMSL (SEQ 150) (Kabat); VKG (SEQ ID NO: ID NO: 164) GFTFSSY (SEQ ID NO: 174) (Chothia) 151) (Chothia); SDSGGS (SEQ ID G AMN (SEQ ID NO: 154) (Kabat) A02_Rd4_6nM_CO7 SYAMN (SEQ ID NO: AIGGSGGSLPYADSV YWPMDS (SEQ 150) ); KG(SEQ ID NO: 158) ID NO: 161) GFTFSSY (SEQ ID NO: (Chothia) 151) (Chothia); GGSGGS (SEQ ID GFTFSSYAMN (SEQ ID NO: 159 ) (Kabat) NO: 152) (extended) 4_6nM_C23 SYAMN (SEQ ID NO: AISDSGGSGWYADS YWPMSL (SEQ 150) (Kabat); VKG (SEQ ID NO: ID NO: 164) GFTFSSY (SEQ ID NO: 175) (Chothia) 151) (Chothia); SDSGGS (SEQ ID GFTFSSYAMN (SEQ ID NO: 154) (Kabat) NO: 152) (extended) A02_Rd4_0.6nM_C18 SYAMN (SEQ ID NO: AVLDSGGSTYYADSV YWPMSL (SEQ 150) (Kabat); KG ID NO: 164) GFTFSSY (SEQ ID NO: (SEQ ID NO: 171) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID LDSGGS (SEQ ID NO: 152) (extended) NO: 172) (Kabat) A02_Rd4_6nM_C10 SYAMN (SEQ ID NO: AISDSGGSCWYADS YWPMTP (SEQ 150) (Kabat); VKG (SEQ ID NO: ID NO: 170) GFTFSSY (SEQ ID NO: 176) (Chothia) 151) (Chothia); SDSGGS (SEQ ID YAMN (SEQ ID NO: 154) (Kabat) NO: 152) ded) A02_Rd4_6nM_C05 SYAMN (SEQ ID NO: AIFASGGSTYYADSV YWPMTP (SEQ 150) (Kabat); KG ID NO: 170) GFTFSSY (SEQ ID NO: (SEQ ID NO: 177) 151) (Chothia); ia) GFTFSSYAMN (SEQ ID FASGGS (SEQ ID NO: 152) (extended) NO: 178) (Kabat) 4_0.6nM_C10 SYAMN (SEQ ID NO: AISGWGGSLPYADS YWPMDS (SEQ 150) (Kabat); VKG ID NO: 161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 304) 151) (Chothia); (Chothia) YAMN (SEQ ID SGWGGS (SEQ ID NO: 152) (extended) NO: 179) (Kabat) A02_Rd4_6nM_CO4 SYAMN (SEQ ID NO: AIMSSGGPLYYADSV YWPMAL (SEQ 150) ); KG ID NO: 182) GFTFSSY (SEQ ID NO: (SEQ ID NO: 180) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID MSSGGP (SEQ ID NO: 152) (extended) NO: 181) (Kabat) A02_Rd4_0.6nM_C26 SYAMN (SEQ ID NO: AILMSGGSTYYADSV YWPMSL (SEQ 150) (Kabat); KG ID NO: 164) GFTFSSY (SEQ ID NO: (SEQ ID NO: 183) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID LMSGGS (SEQ ID NO: 152) (extended) NO: 184) (Kabat) A02_Rd4_0.6nM_C13 SYAMN (SEQ ID NO: AISDSGGYRYYADSV YWPMSL (SEQ 150) (Kabat); KG ID NO: 164) GFTFSSY (SEQ ID NO: (SEQ ID NO: 185) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDSGGY (SEQ ID NO: 152) (extended) NO: 186) (Kabat) A02_Rd4_0.6nM_C01 SYAMN (SEQ ID NO: AILSSGGSTYYADSVK YWPMDI (SEQ (P5AC1) 150) (Kabat); G ID NO: 155) GFTFSSY (SEQ ID NO: (SEQ ID NO: 187) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID LSSGGS (SEQ ID NO: 152) (extended) NO: 188) (Kabat) A02_Rd4_6nM_C08 SYAMN (SEQ ID NO: AILDSGGSTYYADSV YWPMSP (SEQ abat); KG (SEQ ID NO: IDNO: 189) GFTFSSY (SEQ ID NO: 160) (Chothia) 151)(Chothia); LDSGGS (SEQ ID GFTFSSYAMN (SEQ ID NO:172)(Kabat) NO: 152) (extended) C01_Rd4_6nM_C12 SYPMS (SEQID NO: 156) AIGGSGGWSYYADS YWPMDS (SEQ (PC1C12) (Kabat); VKG ID NO: 161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 190) 151) (Chothia); (Chothia) YPMS (SEQ ID GGSGGW (SEQ ID NO: 157) (extended) NO: 191) (Kabat) C01_Rd4_6nM_CO9 SYPMS (SEQID NO: 156) ATVGSGGSIGYADSV YWPMDS (SEQ (Kabat); KG ID NO: 161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 192) 151) ia); (Chothia) GFTFSSYPMS (SEQ ID VGSGGS (SEQ ID NO: 157) (extended) NO: 193) (Kabat) COMBO_Rd4_O.6nM_C22 SYAMN (SEQ ID NO: GSRWYADS YWPMDI (SEQ (c0M22) 150) (Kabat); VKG ID NO: 155) GFTFSSY (SEQ ID NO: (SEQ ID NO: 169) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDSGGS (SEQ ID COMBO_Rd4_O.6nM_C10 SYPMS (SEQ ID NO:156) AIGGSGGSIHYADSV YWPMDS (SEQ (Kabat); KG (SEQ ID NO: |DNO:161) GFTFSSY (SEQ ID NO: 194) (Chothia) 151) ia); GGSGGS (SEQ ID GFTFSSYPMS (SEQ ID NO: 159) (Kabat) NO: 157) (extended) COMBO_Rd4_O.6nM_CO4 SYPMS (SEQ ID NO:156) AH IGSGGSTYYADSV YWPMDS (SEQ (Kabat); KG (SEQ ID NO: IDNO:161) Y (SEQ ID NO: 195) (Chothia) 151) (Chothia); IGSGGS (SEQ ID GFTFSSYPMS (SEQ ID NO: 196) (Kabat) NO: 157) (extended) COMBO_Rd4_O.6nM_C25 SYPMS (SEQ ID NO:156) AIGGSGGSTYYADSV YWPMDP (SEQ (Kabat); KG ID NO: 197) GFTFSSY (SEQ ID NO: (SEQ ID NO: 162) 151) (Chothia); (Chothia) GFTFSSYPMS (SEQ ID GGSGGS (SEQ ID NO: 157) ded) NO: 159 ) (Kabat) COMBO_Rd4_6nM_C21 SYPMS (SEQ ID NO: 156) AIGGSGGSLPYADSV YWPMDS (SEQ (Kabat); KG ID N01161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 158) 151) (Chothia); (Chothia) GFTFSSYPMS (SEQ ID GGSGGS (SEQ ID NO: 157) (extended) NO:159)(Kabat) COMBO_Rd4_6nM_C11 SYPMS (SEQ ID NO:156) GSLGYADSV YWPMDS (SEQ (Kabat); KG ID NO: 161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 198) 151) (Chothia); (Chothia) GFTFSSYPMS (SEQ ID GGSGGS (SEQ ID NO: 157) (extended) NO: 159 ) (Kabat) COMBO_Rd4_6nM_CO9 SYPMS (SEQ ID NO: 156) AI FASGGSTYYADSV YWPMDS (SEQ (Kabat); KG ID NO:161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 177) 151) (Chothia); (Chothia) GFTFSSYPMS (SEQ ID FASGGS (SEQ ID NO: 157) (extended) NO: 178) (Kabat) Rd4_6nM_CO8 SYPMS (SEQ ID NO: 156) AIGGSGTWTYYADS YWPMDS (SEQ ); VKG ID NO: 161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 199) 151) ia); (Chothia) GFTFSSYPMS (SEQ ID GGSGTW (SEQ ID NO: 157) (extended) NO: 200) (Kabat) COMBO_Rd4_O.6nM_C23 SYPMS (SEQ ID NO: 156) ALFGSGGSTYYADSV YWPMDS (SEQ (Kabat); KG ID NO:161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 201) 151) (Chothia); (Chothia) GFTFSSYPMS (SEQ ID FGSGGS NO: 157) (extended) (SEQ ID NO: 202) (Kabat) COMBO_Rd4_O.6nM_C12 SYPMS (SEQ ID NO: 156) AALGSGGSTYYADSV YWPMDS (SEQ (Kabat); KG (SEQ ID NO: ID ) GFTFSSY (SEQ ID NO: 203) (Chothia) 151) (Chothia); LGSGGS (SEQ ID GFTFSSYPMS (SEQ ID NO: 204) (Kabat) COMBO_Rd4_6nM_CO7 SYPMS (SEQID NO: 156) AIGGSGGSLPYADSV YWPMAD (SEQ (Kabat); KG ID NO: 205) GFTFSSY (SEQ ID NO: (SEQ ID NO: 158) 151) (Chothia); (Chothia) GFTFSSYPMS (SEQ ID GGSGGS (SEQ ID NO: 157) (extended) NO: 159 ) (Kabat) COMBO_Rd4_6nM_C02 SYAMN (SEQ ID NO: AISDSGGFVYYADSV YWPMDS (SEQ 150) (Kabat); KG ID NO: 161) GFTFSSY (SEQ ID NO: (SEQ ID NO: 206) 151) (Chothia); (Chothia) GFTFSSYAMN (SEQ ID SDSGGF (SEQ ID NO: 152) (extended) NO: 207 ) (Kabat) Rd4_6nM_C05 SYAMN (SEQ ID NO: AIGGSGGSTYYADSV YWPMSL (SEQ 150) (Kabat); KG ID NO: 164) Y (SEQ ID NO: (SEQ ID NO: 162) 151) (Chothia); (Chothia) YAMN (SEQ ID GGSGGS (SEQ ID NO: 152) (extended) NO:159)(Kabat) COMBO_Rd4_6nM_C22 SYAMN (SEQ ID NO: ACLDSGGSTYYADSV YWPMDS (SEQ 150)(Kabat); KG (SEQ ID NO: IDNO: 161) Y (SEQ ID NO: 208) (Chothia) 151)(Chothia); LDSGGS (SEQ ID GFTFSSYAMN (SEQ ID NO:172)(Kabat) NO: 152) (extended) COMBO_Rd4_6nM_C11 SYPMS (SEQID NO: 156) AALGSGGSTYYADSV YWPMSL (SEQ (Kabat); KG (SEQ ID NO: IDNO: 164) GFTFSSY (SEQ ID NO: 203) (Chothia) 151) (Chothia); LGSGGS (SEQ ID GFTFSSYPMS (SEQ ID NO:204)(Kabat) NO: 157) (extended) Heavy chain consensus 2, wherein X1 is AX1X2X3X4GX5X6X7X8 VSPIX1X2X3MD A or P; and X2 is T, N, or YADX9X10KG, Y, wherein X1 is S (Kabat) (SEQ ID NO: wherein X1 is I, V, T, A or Y; X2 is A 301) H, L, A, or C; X2 is S, or S; and X3 is GFTFX1SY, wherein X1 is D, G, T, I, L, F, M, or G, Q, L, P, or E G or S (Chothia) (SEQ ID V; X3 is G, Y, L, H, D, (SEQ ID NO: NO: 302) A, S, or M; X4 is S, 307) GFTFX15YX2MX3, Q, T, A, F, or W; X5 YWPMX1X2, n X1 is G or S, X2 is G or T;X6 is N, S, wherein X1 is is A or P; and X3 is T, N, P, Y, W, or F; X7 is S, D, S, T, or A; or S (SEQ ID NO: 303) T, I, L, T, A, R, V, K, and X2 is I, S, L, (extended) G, or C; X8 is F, Y, P, P, or D (SEQ ID W, H, or G; X9 is V, NO: 308) R, or L; and X10 is G or T (Chothia) (SEQ ID NO: 305) X1X2X3X4X5X6, wherein X1 is S, V, I, D, G, T, L, F, or M; X2 is G, Y, L, H, D, A, S, or M; X3 is S, G, F, or W; X4 is G or S; X5 is G or T; and X6 is N, S, P, Y, or W (Kabat) (SEQ ID NO: 306) SYAMS(SEQIDNO:381) SASGGS (SEQ ID FDN (Kabat); No:383) (Kabat) (SEQ ID NO: GFTFSSY (SEQ ID NO: GSTYYADSV 385) 151) (Chothia); KG (SEQ ID NO: 384 GFTFSSYAMS (SEQ ID )(Chothia) NO: 382) (extended) SYAMS(SEQIDNO:386) SGSGGS (SEQ ID VGTSGAFGI (Kabat); NO:389)(Kabat) (SEQ ID NO: GFTFRSY (SEQ ID NO: AISGSGGSTFYADSV 391) 387) KG (SEQ ID NO: GFTFRSYAMS (SEQ ID 390)(Chothia) NO: 388) Light Chain P6E01 SSSYLA (SEQ ID GASSRAT (SEQ ID QHYGSPPSFT For the following mAbs: N01210) (SEQ ID NO: P6E01/P6E01; and 211) P6E01/H3.AQ.

L1.LGF/L3.KW RASQSLGSFYLA GASSRAT (SEQ ID KHYGWPPSFT For the following mAbs: (SEQ ID NO: 212) NO: 210) (SEQ ID NO: L1.LGF/L3.KW/P6E01; 213) L1.LGF/L3.KW/H3.AL; L1.LGF/L3.KW/H3.AP; and L1.LGF/L3.KW/H3.AQ L1.LG F/L3.NY RASQSLGSFYLA GASSRAT (SEQ ID QHYNYPPSFT For the following mAbs: (SEQ ID NO: 212) NO: 210) (SEQ ID NO: /L3.NY/P6E01; 214) L1.LGF/L3.NY/H3.AL; L1.LGF/L3.NY/H3.AP; and L1.GDF/L3.NY GDFYLA GASSRAT (SEQ ID QHYNYPPSFT For the following mAbs: (SEQ ID NO: 215) NO: 210) (SEQ ID NO: L1.GDF/L3.NY/P6E01; 214) L1.GDF/L3.NY/H3.AL; L1.GDF/L3.NY/H3.AP; and L1.GDF/L3.NY/H3.AQ L1.LGF/L3.PY GSFYLA GASSRAT (SEQ ID PSFT For the following mAbs: (SEQ ID NO: 212) NO: 210) (SEQ ID NO: L1.LGF/L3.PY/H3.AP; and 216) L1.LGF/L3.PY/H3.AQ L1.GDF /L3.KW RASQSVGDFYLA GASSRAT (SEQ ID KHYGWPPSFT For the following mAbs: (SEQ ID N01215) NO: 210) (SEQ ID NO: L1.GDF /L3.KW/H3.AL; 213) L1.GDF /L3.KW/H3.AP; and L1.GDF /L3.KW/H3.AQ L1.GDF /L3.PY/H3.AQ RASQSVGDFYLA GASSRAT (SEQ ID QHYPYPPSFT (SEQ ID N01215) NO: 210) (SEQ ID NO: 216) L3.KW/P6E01 RASQSVSSSYLA (SEQ ID GASSRAT (SEQ ID KHYGWPPSFT NO: 209) NO: 210) (SEQ ID NO: 213) L3.PY RASQSVSSSYLA (SEQ ID GASSRAT (SEQ ID QHYPYPPSFT For the ing mAbs: N01209) NO: 210) (SEQ ID NO: L3.PY/P6E01; 216) L3.PY/H2.QR; WO 66630 2016/051808 H2.DY; L3.PY/H2.YQ; L3.PY/H2.LT; L3.PY/H2.HA; L3.PY/H2.QL; L3.PY/H3.YA; L3.PY/H3.AE; L3.PY/H3.AQ; L3.PY/H3.TAQ L3.NY/P6E01 RASQSVSSSYLA (SEQ ID GASSRAT (SEQ ID QHYNYPPSFT NO: 210) (SEQ ID NO: 214) L3.PY/L1.PS RASQSVSSSYPS GASSRAT (SEQ ID QHYPYPPSFT For the following mAbs: (SEQ ID NO: 217) NO: 210) (SEQ ID NO: L3.PY/L1.PS/P6E01; P6DY; 216) L3.PY/L1.PS/H2.QR; L3.PY/L1.PS/H2.DY; L3.PY/L1.PS/H2.YQ; L3.PY/L1.PS/H2.LT; L3.PY/L1.PS/H2.HA; L3.PY/L1.PS/H2.QL; L3.PY/L1.PS/H3.YA; L3.PY/L1.PS/H3.AE; L3.PY/L1.PS/H3.AQ; L3.PY/L1.PS/H3.TAQ; L3.PY/L1.AH RASQSVSAHYLA GASSRAT (SEQ ID QHYPYPPSFT For the following mAbs: (SEQ ID NO: 218) NO: 210) (SEQ ID NO: L3.PY/L1.AH/P6E01; 216) L3.PY/L1.AH/H2.QR; L3.PY/L1.AH/H2.DY; L3.PY/L1.AH/H2.YQ; L3.PY/L1.AH/H2.LT; L3.PY/L1.AH/H2.HA; L3.PY/L1.AH/H2.QL; L3.PY/L1.AH/H3.YA; L3.PY/L1.AH/H3.AE; L3.PY/L1.AH/H3.AQ; L3.PY/L1.AH/H3.TAQ L3.PY/L1.FF RASQSVSSFFLA GASSRAT (SEQ ID PSFT For the following mAbs: (SEQ ID NO: 219) NO: 210) (SEQ ID NO: L3.PY/L1.FF/P6E01; 216) L3.PY/L1.FF/H2.QR; L3.PY/L1.FF/H2.DY; L3.PY/L1.FF/H2.YQ; L3.PY/L1.FF/H2.LT; L3.PY/L1.FF/H2.HA; L3.PY/L1.FF/H2.QL; L3.PY/L1.FF/H3.YA; L1.FF/H3.AE; L3.PY/L1.FF/H3.AQ; L3.PY/L1.FF/H3.TAQ L3.PY/L1.PH SPHYLA GASSRAT (SEQ ID QHYPYPPSFT For the following mAbs: (SEQ ID N01219) NO: 210) (SEQ ID NO: L3.PY/L1.PH/P6E01; L3.PY/L1.PH/H2.QR; L3.PY/L1.PH/H2.HA; L3.PY/L1.PH/H3.AE; L3.PY/L1.PH/H3.AQ; and L1.PH/H3.TAQ L3.PY/L3.KY RASQSVSSSYLA GASSRAT (SEQ ID KYYPYPPSFT For the following mAbs: (SEQ ID NO: 209) NO: 210) (SEQ ID NO: L3.PY/L3.KY/P6E01; 220) L3.PY/L3.KY/H2.QR; L3.PY/L3.KY/H2.DY; L3.PY/L3.KY/H2.YQ; L3.PY/L3.KY/H2.LT; L3.PY/L3.KY/H2.HA; L3.PY/L3.KY/H2.QL; L3.PY/L3.KY/H3.YA; and L3 . PY/L3 . KY/H3 .TAQ L3.PY/L3.KF RASQSVSSSYLA T (SEQ ID KFYPYPPSFT For the following mAbs: (SEQIDN01209) NO: 210) (SEQ ID NO: L3.PY/L3.KF/H2.DY; 220) L3.PY/L3.KF/H2.YQ; L3.KF/H2.LT; L3.PY/L3.KF/H2.QL; L3.PY/L3.KF/H3.YA; L3.PY/L3.KF/H3.AE; L3.PY/L3.KF/H3.AQ; and L3.KF/H3.TAQ P5A2_VHVL (P5A) RASQSVSSSYLA DASI RAT QQYGSWPLT (SEQ ID NO: 209) (SEQ ID NO: (SEQ ID NO: 222) A02_Rd4_0.6nM_CO6 SVIYLA DASI RAT QQYQRWPLT (SEQ ID NO: 223) (SEQ ID NO: (SEQ ID NO: 224) A02_Rd4_0.6nM_CO9; RASQSVSSSYLA DASI RAT QQYQSWPLT COMBO_Rd_O.6nM_C29; (SEQ ID N01209) (SEQ ID NO: (SEQ ID NO: and 225) COMBO_Rd4_O.6nM_C21 A02_Rd4_6nM_C16 RASQSVSDIYLA DASI RAT QQYQTWPLT (P5AC16) (SEQ ID NO: 226) (SEQ ID NO: (SEQ ID NO: 227) 4_6nM_CO3 RASQSVSNIYLA (SEQ ID DASI RAT QQYQGWPLT NO: 228) (SEQ ID NO: (SEQ ID NO: 229) A02_Rd4_6nM_C01 RASQSVSAYYLA DASI RAT QQYERWPLT (SEQ ID NO: 230) (SEQ ID NO: (SEQ ID NO: 231) A02_Rd4_6nM_C26 RASQSVSSIYLA DASI RAT QQYQVWPLT (SEQ ID NO: 232) (SEQ ID NO: (SEQ ID NO: 233) A02_Rd4_6nM_C25 RASQSVSSSYLA DASI RAT QQYLDWPLT (SEQ ID N01209) (SEQ ID NO: (SEQ ID NO: 234) 2016/051808 A02_Rd4_6nM_C22 RASQSVSSSYLA DASI RAT QQYQVWPLT (SEQ ID NO: 209) (SEQ ID NO: (SEQ ID NO: 233) A02_Rd4_6nM_C19 RASQSVSVIYLA DASI RAT PLT (SEQ ID NO: 223) (SEQ ID NO: (SEQ ID NO: 236) A02_Rd4_0.6nM_CO3 RASQSVSSSYLA DASI RAT QQYFTWPLT (SEQ ID N01209) (SEQ ID NO: (SEQ ID NO: 237) A02_Rd4_6nM_CO7 RASQSVSPYYLA DASI RAT QQYERWPLT (SEQ ID N01238) (SEQ ID NO: (SEQ ID NO: 231) A02_Rd4_6nM_C23 RASQSVSVEYLA DASI RAT QQYARWPLT (SEQ ID NO: 239) (SEQ ID NO: (SEQ ID NO: 24o ) A02_Rd4_0.6nM_C18 RASQSVSE |YLA DASI RAT QQYFGWPLT (SEQ ID NO: 241) (SEQ ID NO: (SEQ ID NO: 242) A02_Rd4_6nM_C10 RASQSVEMSYLA DASI RAT QQYAHWPLT (SEQ ID NO: 243) (SEQ ID NO: (SEQ ID NO: 244) A02_Rd4_6nM_C05 RASQSVSSSYLA DASI RAT QQYQRWPLT (SEQ ID N01209) (SEQ ID NO: (SEQ ID NO: 224) A02_Rd4_0.6nM_C10 RASQSVSAQYLA DASI RAT PLT (SEQ ID NO: 245) (SEQ ID NO: (SEQ ID NO: 224) A02_Rd4_6n M_CO4 RASQSVSAIYLA DASI RAT QQYQVWPLT (SEQ ID NO: 235) (SEQ ID NO: (SEQ ID NO: 233) A02_Rd4_0.6nM_C26 GPSQSVSSSYLA DAQRAT QQYQSWPLT (SEQ ID NO: 246) (SEQ ID NO: (SEQ ID NO: 225) A02_Rd4_0.6nM_C13 RASQSVSSSYWA DAQRAT PLT (SEQ ID NO: 247) (SEQ ID NO: (SEQ ID NO: 248) A02_Rd4_0.6nM_C01 RGGQSVSSSYLA DAQRAT QQYQSWPLT ) (SEQ ID NO: 249) (SEQ ID NO: (SEQ ID NO: 225) A02 Rd4 6nN|C08 RASQSVSFIYLA DAQRAT QQYGSWPLT (SEQ ID NO: 250) (SEQ ID NO: (SEQ ID NO: 222) HVL (PC1) RASQSVSSTYLA DASSRAP QQYSTSPLT (SEQ ID NO: 251) (SEQ ID NO: (SEQ ID NO: 253) C01_Rd4_6nM_C24 RASQSVSPEYLA DASSRAP QQYSVWPLT (SEQ ID NO: 254) (SEQ ID NO: (SEQ ID NO: 255) C01_Rd4_6nM_C26 RASQSVSAIYLA DASSRAP QQYSAWPLT (SEQ ID NO: 235) (SEQ ID NO: (SEQ ID NO: 256) C01_Rd4_6nM_C10 RASQSVSSVYLA DASSRAP QQYSTWPLT (SEQ ID NO: 257) (SEQ ID NO: (SEQ ID NO: 258) C01_Rd4_0.6nM_C27 RASQSVSSTYLA DASSRAP QQYSRWPLT (SEQ ID N01251) (SEQ ID NO: (SEQ ID NO: 4_6nM_C20 RASQSVSPIYLA DASSRAP QQYSAFPLT (SEQ ID NO: 260) (SEQ ID NO: 252) (SEQ ID NO: 261) C01_Rd4_6nM_C12 WLSQSVSSTYLA DASSRAP QQYSEWPLT (PC1C12) (SEQ ID NO: 262) (SEQ ID NO: (SEQ ID NO: 263) C01_Rd4_0.6nM_C16 RASQSVSSTYLA DASSRAP QQYSSWPLT (SEQ ID NO: 251) (SEQ ID NO: (SEQ ID NO: 264) 4_0.6nM_CO9 RASQSVSSIFLA DASSRAP QQYSAWPLT (SEQ ID NO: 265) (SEQ ID NO: (SEQ ID NO: 256) C01_Rd4_6nM_CO9 ACSQSVSSTYLA DASSRAP QQYSAWPLT (SEQ ID NO: 266) (SEQ ID NO: (SEQ ID NO: 256) C01_Rd4_0.6nM_CO3 RASCDVSSTYLA DASSRAP QQYMRSPLT (SEQ ID NO: 267) (SEQ ID NO: (SEQ ID NO: 268) C01_Rd4_0.6nM_CO6 RASEAVPSTYLA DASSRAP QQYSAFPLT (SEQ ID NO: 269) (SEQ ID NO: (SEQ ID NO: 261) 4_0.6nM_CO4 CSSQSVSSTYLA DASSRAP QQYSAFPLT (SEQ ID NO: 270) (SEQ ID NO: (SEQ ID NO: 261) COMBO_Rd4_O.6nM_C22 SSTYLA DASIRAT QQYMKWPLT (c0M22) (SEQ ID NO: 271) (SEQ ID NO: (SEQ ID NO: 272) COMBO_Rd4_6nM_C21 RASQSVSAAYLA DAQRAT QQYMCWPLT (SEQ ID NO: 273) (SEQ ID NO: (SEQ ID NO: 274) COMBO_Rd4_6nM_C10 RASQSVSSSYWG DAQRAT QQYQCWPLT (SEQ ID NO: 275) (SEQ ID NO: (SEQ ID NO: 276) COMBO_Rd4_O.6nM_CO4 RASQSVSSTYLA DAQRAT QQYQSWPLT (SEQ ID NO: 251) (SEQ ID NO: (SEQ ID NO: 225) COMBO_Rd4_6nM_C25 SSPYLA (SEQ ID DAQRAT QQYQSWPLT NO: 277) (SEQ ID NO: (SEQ ID NO: 225) COMBO_Rd4_6nM_C11 RASQSVSPIYLA DAQRAT QQYKAWPLT (SEQ ID NO: 260) (SEQ ID NO: (SEQ ID NO: 278) COMBO_Rd4_O.6nM_C20 RASQSVSYLYLA DAQRAT QQYMEWPLT (SEQ ID NO: 279) (SEQ ID NO: (SEQ ID NO: 280) COMBO_Rd4_6nM_CO9 RASQSVSAQYLA DAQRAT QQYQAWPLT (SEQ ID NO: 245) (SEQ ID NO: (SEQ ID NO: 281) COMBO_Rd4_6nM_C08 RASQSVSSSYLA DAQRAT QQYQKWPLT (SEQ ID NO: 209) (SEQ ID NO: (SEQ ID NO: 282) COMBO_Rd4_O.6nM_C19 SAVYLA DAQRAT QQYRAWPLT (SEQ ID NO: 283) (SEQ ID NO: (SEQ ID NO: 284) COMBO_Rd4_O.6n M_C02 SSTYLA DASI RAT QQYMVWPLT (SEQ ID NO: 285) (SEQ ID NO: (SEQ ID NO: 286) COMBO_Rd4_O.6nM_C23 RPRQSVSSSYLA DASI RAT QQYQDWPLT (SEQ ID NO: 287) (SEQ ID NO: (SEQ ID NO: 288) COMBO_Rd4_O.6nM_CO9 RASQSVSSTYLA DASI RAT QQYQEWPLT (SEQ ID NO: 251) (SEQ ID NO: (SEQ ID NO: 289) Rd4_6nM_C12 RASQSVSASYLA DASI RAT QQYMSWPLT (SEQ ID NO: 290) (SEQ ID NO: (SEQ ID NO: 291) COMBO_Rd4_O.6nM_C3O RASQSVSYMYLA DASI RAT QQYKSWPLT (SEQ ID NO: 292) (SEQ ID NO: (SEQ ID NO: 293) COMBO_Rd4_O.6nM_C14 RASQSVSAIYLA DASI RAT QQYYGWPLT (SEQ ID NO: 235) (SEQ ID NO: (SEQ ID NO: 294) Rd4_6nM_CO7 RASQPISSSYLA DASI RAT QQYQGWPLT (SEQ ID NO: 295) (SEQ ID NO: (SEQ ID NO: 229) COMBO_Rd4_6nM_C02 RASQSVSSSYLA DASI RAT QQYEFWPLT (SEQ ID NO: 209) (SEQ ID NO: (SEQ ID NO: 296) COMBO_Rd4_O.6nM_C05 RASQSVSSTYLA DASI RAT QQYMSWPLT (SEQ ID N01251) (SEQ ID NO: (SEQ ID NO: 291) COMBO_Rd4_O.6nM_C17 RASQGISSTYLA DASI RAT QQYAYWPLT (SEQ ID NO: 297) (SEQ ID NO: (SEQ ID NO: COMBO_Rd4_6nM_C22 RASQSVSSSYLA T QQYQGWPLT (SEQ ID NO: 209) (SEQ ID NO: 221) (SEQ ID NO: 229) COMBO_Rd4_O.6nM_C11 RASQSVSVRYLA DASIRAT QQYGSWPIT (SEQ ID NO: 299) (SEQ ID NO: 221) (SEQ ID NO: 300) Light chain consensus X1X2X3X4X5X6X7X8X9X10X1 X1ASX2RAX3, X1X2YX3X4PPSF 1X12, wherein X1 is R, G, wherein X1 is G or T, wherein Xlis W,A,orC;X2isA,P,G, D; X2 isSor I; and Qor K; XzisH L, C, or S; X3 is S, G, or R; X3 is T or P (SEQ ID or Y; X3 is G, N, X4 is Q, C, E, V, or I; X5 is NO: 310) or P; and X4 is S, P, G, A, R, or D; X6 is S, W, or Y (SEQ V, G, I, or L; X7 is S, E, D, ID NO: 311) P, or G; X8 is S, P, F, A, QQYX1X2X3PX4 M, E, V, N, D, or Y; X9 is T, wherein X1 I,T, V, E,FS, A, M,Q, Y, is G,Q, E, L, F, H, or R; X10 is Y or F; X11 A, S, M, K, R, or is L, W, or P; and X12 is Y; X2 is S, R, T, A, S, or G (SEQ ID NO: G, V, F, Y, D, A, 309) H, V, E, K, or C; X3 is W, F, or S; and X4 is L or I (SEQ ID NO: 312) RASQSVSSSYLA (SEQ ID Y (SEQ ID QHYGSPPLFT (SEQ ID NO: RASQNVSSSYLA (SEQ ID GASYRAT (SEQ ID QHYGSPPSFT (SEQ ID NO: 211) RASQLGSFYLA (SEQ ID GASSRAT (SEQ ID QHYNYPPSFT (SEQ ID NO: 214) The invention encompasses modifications to the CARs and polypeptides of the invention variants shown in Table 1, including functionally equivalent CARs having modifications which do not significantly affect their properties and ts which have enhanced or decreased activity and/or affinity. For example, the amino acid sequence may be mutated to obtain an antibody with the desired binding affinity to BCMA. Modification of ptides is routine practice in the art and need not be described in detail herein.

Examples of modified ptides include polypeptides with conservative substitutions of amino acid es, one or more deletions or additions of amino acids which do not 1O significantly deleteriously change the functional activity, or which mature (enhance) the affinity of the polypeptide for its ligand, or use of al analogs.

Amino acid sequence insertions include amino- and/or carboxyl-terminal fusions ranging in length from one residue to polypeptides containing a hundred or more es, as well as intrasequence insertions of single or multiple amino acid residues. Examples of terminal insertions include an dy with an N-terminal methionyl residue or the antibody fused to an epitope tag. Other ional variants of the antibody molecule include the fusion to the N- or C-terminus of the antibody of an enzyme or a polypeptide which increases the half-life of the dy in the blood ation.

Substitution variants have at least one amino acid residue in the antibody le removed and a different residue inserted in its place. The sites of greatest interest for substitutional mutagenesis include the hypervariable regions, but FR alterations are also plated. Conservative substitutions are shown in Table 2.1 under the heading of "conservative substitutions." If such substitutions result in a change in biological activity, WO 66630 then more substantial changes, denominated "exemplary tutions" in Table 2.1, or as further described below in reference to amino acid classes, may be introduced and the products screened.

Table 2.1: Amino Acid Substitutions Original Residue (naturally occurring amino Conservative ' Substitutions Exemola tutions —_I_ Norleucine Norleucine; lle; Val; Met; _ Lys (K) _ Arg: Gm; Asn Phe (F) —ALeu; Val;lle; Ala; Tyr Tyr w — Tm; Ser lle; Leu; Met; Phe; Ala; In some embodiments, the invention provides a CAR comprising an extracellular ligand-binding domain that binds to BCMA and competes for binding to BCMA with a CAR described herein, including P6EO1/P6EO1, P6EO1/H3.AQ, L1.LGF/L3.KW/P6EO1; L1.LGF/L3.NY/P6EO1, L1.GDF/L3.NY/P6EO1, L1.LGF/L3.KW/H3.AL, L1.LGF/L3.KW/H3.AP, L1.LGF/L3.KW/H3.AQ, L1.LGF/L3.PY/H3.AP, L1.LGF/L3.PY/H3.AQ, /L3.NY/H3.AL, L1.LGF/L3.NY/H3.AP, L1.LGF/L3.NY/H3.AQ, L1.GDF/L3.KW/H3.AL, L1.GDF/L3.KW/H3.AP, L1.GDF/L3.KW/H3.AQ, L1.GDF/L3.PY/H3.AQ, L1.GDF/L3.NY/H3.AL, L1.GDF/L3.NY/H3.AP, L1.GDF/L3.NY/H3.AQ, L3.KW/P6EO1, L3.PY/P6EO1, L3.NY/P6EO1, L3.PY/L1.PS/P6EO1, L3.PY/L1.AH/P6EO1, L3.PY/L1.FF/P6EO1, L3.PY/L1.PH/P6EO1, L3.KY/P6EO1, L3.PY/L3.KF/P6EO1, L3.PY/H2.QR, H2.DY, L3.PY/H2.YQ, 1O L3.PY/H2.LT, H2.HA, L3.PY/H2.QL, L3.PY/H3.YA, L3.PY/H3.AE, L3.PY/H3.AQ, L3.PY/H3.TAQ, L3.PY/P6EO1, L3. PY/L1 .PS/H2.QR, L3. PY/L1 .PS/H2.DY, L3.PY/L1.PS/H2.YQ, L3.PY/L1.PS/H2.LT, L1.PS/H2.HA, L3.PY/L1.PS/H2.QL, L1.PS/H3.YA, L3.PY/L1.PS/H3.AE, L3.PY/L1.PS/H3.AQ, L3.PY/L1.PS/H3.TAQ, L3.PY/L1.AH/H2.QR, L3.PY/L1.AH/H2.DY, L3.PY/L1.AH/H2.YQ, L3.PY/L1.AH/H2.LT, L3.PY/L1.AH/H2.HA, L3.PY/L1.AH/H2.QL, L3.PY/L1.AH/H3.YA, L3.PY/L1.AH/H3.AE, L3.PY/L1.AH/H3.AQ, L3.PY/L1.AH/H3.TAQ, L3.PY/L1.FF/H2.QR, L1.FF/H2.DY, L3.PY/L1.FF/H2.YQ, L3.PY/L1.FF/H2.LT, L3.PY/L1.FF/H2.HA, L3.PY/L1.FF/H2.QL, L1.FF/H3.YA, L3.PY/L1.FF/H3.AE, L3.PY/L1.FF/H3.AQ, L3.PY/L1.FF/H3.TAQ, L3.PY/L1.PH/H2.QR, L3.PY/L1.PH/H2.HA, L3.PY/L1.PH/H3.AE, L3.PY/L1.PH/H3.AQ, L3.PY/L1.PH/H3.TAQ, L3.PY/L3.KY/H2.QR, L3.PY/L3.KY/H2.DY, L3.PY/L3.KY/H2.YQ L3.PY/L3.KY/H2.LT, L3.PY/L3.KY/H2.HA, L3.KY/H2.QL, L3.PY/L3.KY/H3.YA L3.PY/L3.KY/H3.TAQ, L3.PY/L3.KF/H2.DY, L3.PY/L3.KF/H2.YQ, L3.PY/L3.KF/H2.LT L3.PY/L3.KF/H2.QL, L3.PY/L3.KF/H3.YA, L3.PY/L3.KF/H3.AE, L3.PY/L3.KF/H3.AQ L3.PY/L3.KF/H3.TAQ, P5A2_VHVL, A02_Rd4_0.6nM_C06, A02_Rd4_0.6nM_C09 A02_Rd4_6nM_C16, A02_Rd4_6nM_C03, A02_Rd4_6nM_CO1, A02_Rd4_6nM_C26 A02_Rd4_6nM_C25, A02_Rd4_6nM_C22, 4_6nM_C19, A02_Rd4_0.6nM_C03 A02_Rd4_6nM_CO7, A02_Rd4_6nM_C23, A02_Rd4_0.6nM_C18, A02_Rd4_6nM_C1O A02_Rd4_6nM_CO5, A02_Rd4_0.6nM_C10, A02_Rd4_6nM_CO4, AO2_Rd4_O.6nM_C26 A02_Rd4_0.6nM_C13, A02_Rd4_0.6nM_CO1, A02_Rd4_6nM_C08, P5C1_VHVL, CO1_Rd4_6nM_C24, CO1_Rd4_6nM_C26, CO1_Rd4_6nM_C10, 4_O.6nM_C27 CO1_Rd4_6nM_C20, CO1_Rd4_6nM_C12, CO1_Rd4_O.6nM_C16, CO1_Rd4_O.6nM_C09 C01_Rd4_6nM_C09, C01_Rd4_0.6nM_C03, C01_Rd4_0.6nM_C06, C01_Rd4_6nM_C04 COMBO_Rd4_0.6nM_C22, COMBO_Rd4_6nM_C21, COMBO_Rd4_6nM_C10, COMBO_Rd4_0.6nM_C04, COMBO_Rd4_6nM_C25, COMBO_Rd4_0.6nM_C21, COMBO_Rd4_6nM_C11, COMBO_Rd4_0.6nM_C20, COMBO_Rd4_6nM_C09, Rd4_6nM_C08, COMBO_Rd4_0.6nM_C19, COMBO_Rd4_0.6nM_C02, COMBO_Rd4_0.6nM_C23, COMBO_Rd4_0.6nM_C29, COMBO_Rd4_0.6nM_C09, COMBO_Rd4_6nM_C12, COMBO_Rd4_0.6nM_C30, Rd4_0.6nM_C14, COMBO_Rd4_6nM_C07, COMBO_Rd4_6nM_C02, Rd4_0.6nM_C05, Rd4_0.6nM_C17, COMBO_Rd4_6nM_C22, COMBO_Rd4_0.6nM_C11, or 1O COMBO_Rd4_0.6nM_C29.

In some embodiments, the invention provides a CAR, which ically binds to BCMA, wherein the CAR comprises a VH region comprising a sequence shown in SEQ ID NO: 33; and/or a VL region comprising a sequence shown in SEQ ID NO: 34. In some ments, the ion provides a CAR, which specifically binds to BCMA, wherein the CAR comprises a VH region sing a sequence shown in SEQ ID NO: 33, 72, 39, 76, 83, 92, 25, or 8; and/or a VL region comprising a sequence shown in SEQ ID NO: 34, 73, 40, 77, 84, 93, 18, or 80. In some embodiments, the invention also provides CARs comprising CDR portions of antibodies to BCMA antibodies based on CDR contact regions.

CDR contact regions are regions of an antibody that imbue specificity to the antibody for an antigen. In general, CDR t regions include the residue positions in the CDRs and Vernier zones which are constrained in order to maintain proper loop structure for the antibody to bind a specific antigen. See, e.g., Makabe et al., J. Biol. Chem., 283:1156- 1166, 2007. Determination of CDR contact regions is well within the skill of the art.

The binding affinity (KB) of the BCMA specific CAR as described herein to BCMA (such as human BCMA (e.g., (SEQ ID NO: 354) can be about 0.002 to about 6500 nM. In some embodiments, the binding affinity is about any of 6500 nm, 6000 nm, 5986 nm, 5567 nm, 5500 nm, 4500 nm, 4000 nm, 3500 nm, 3000 nm, 2500 nm, 2134 nm, 2000 nm, 1500 nm, 1000 nm, 750 nm, 500 nm, 400 nm, 300 nm, 250 nm, 200 nM, 193 nM, 100 nM, 90 nM, 50 nM, 45 nM, 40 nM, 35 nM, 30 nM, 25 nM, 20 nM, 19 nm, 18 nm, 17 nm, 16 nm, 15 nM, 10 nM, 8 nM, 7.5 nM, 7 nM, 6.5 nM, 6 nM, 5.5 nM, 5 nM, 4 nM, 3 nM, 2 nM, 1 nM, 0.5 nM, 0.3 nM, 0.1 nM, 0.01 nM, or 0.002 nM. In some embodiments, the binding affinity is less than about any of 6500 nm, 6000 nm, 5500 nm, 5000 nm, 4000 nm, 3000 nm, 2000 nm, 1000 nm, 900 nm, 800 nm, 250 nM, 200 nM, 100 nM, 50 nM, 30 nM, 20 nM, 10 nM, 7.5 nM, 7 nM, 6.5 nM, 6 nM, 5 nM, 4.5 nM, 4 nM, 3.5 nM, 3 nM, 2.5 nM, 2 nM, 1.5 nM, 1 nM, or 0.5 nM.

The intracellular signaling domain of a CAR according to the ion is responsible for intracellular signaling following the binding of extracellular ligand-binding domain to the target resulting in the activation of the immune cell and immune response. The ellular signaling domain has the ability to activate of at least one of the normal effector functions of the immune cell in which the CAR is expressed. For example, the effector function of a T 1O cell can be a cytolytic activity or helper activity including the secretion of cytokines.

In some embodiments, an intracellular ing domain for use in a CAR can be the cytoplasmic sequences of, for example t limitation, the T cell receptor and co- receptors that act in t to initiate signal transduction following n receptor engagement, as well as any derivative or variant of these sequences and any synthetic sequence that has the same functional capability. Intracellular signaling domains comprise two distinct classes of cytoplasmic signaling sequences: those that initiate n- dependent primary activation, and those that act in an antigen- independent manner to provide a secondary or co-stimulatory signal. Primary cytoplasmic signaling sequences can se signaling motifs which are known as immunoreceptor tyrosine-based activation motifs of lTAMs. lTAMs are well defined signaling motifs found in the intracytoplasmic tail of a variety of receptors that serve as binding sites for syk/zap70 class tyrosine kinases.

Examples of lTAM used in the invention can e as non limiting examples those derived from TCRC, Fch, FcRB, FcRs, CD3y, CD35, CD32, CD5, CD22, CD79a, CD79b and CD66d. In some embodiments, the intracellular signaling domain of the CAR can comprise the CD3; signaling domain which has amino acid sequence with at least about 70%, preferably at least 80%, more preferably at least 90%, 95%, 97%, or 99% sequence identity with an amino acid sequence shown in SEQ. ID NO: 324. In some embodiments the intracellular signaling domain of the CAR of the invention comprises a domain of a co- stimulatory molecule.

In some embodiments, the ellular ing domain of a CAR of the invention comprises a part of co-stimulatory molecule selected from the group consisting of fragment 2016/051808 of 4188 (GenBank: AAA53133.) and CD28 (NP_006130.1). In some embodiments, the intracellular signaling domain of the CAR of the ion comprises amino acid sequence which ses at least 70%, preferably at least 80%, more preferably at least 90%, 95%, 97%, or 99% sequence identity with an amino acid sequence shown in SEQ. ID NO: 323 and SEQ. ID NO: 327.

CARs are expressed on the surface membrane of the cell. Thus, the CAR can comprise a transmembrane domain. Suitable transmembrane domains for a CAR disclosed herein have the ability to (a) be expressed at the surface of a cell, preferably an immune cell such as, for example without limitation, lymphocyte cells or l killer (NK) cells, and 1O (b) interact with the ligand-binding domain and intracellular signaling domain for directing cellular response of immune cell against a predefined target cell. The transmembrane domain can be derived either from a natural or from a synthetic . The transmembrane domain can be derived from any membrane-bound or transmembrane protein. As non-limiting examples, the transmembrane polypeptide can be a subunit of the T cell receptor such as or, [3, y or 6, ptide constituting CD3 complex, IL-2 receptor p55 (a chain), p75 ([3 chain) or y chain, subunit chain of Fc receptors, in ular Fcy receptor III or CD proteins. Alternatively, the transmembrane domain can be tic and can comprise predominantly hobic residues such as Ieucine and valine. In some embodiments said transmembrane domain is derived from the human CD8d chain (e.g., NP_001139345.1). The transmembrane domain can further se a stalk domain between the extracellular ligand-binding domain and said transmembrane domain. A stalk domain may comprise up to 300 amino acids, preferably 10 to 100 amino acids and most preferably 25 to 50 amino acids. Stalk region may be derived from all or part of naturally occurring molecules, such as from all or part of the extracellular region of CD8, CD4, or CD28, or from all or part of an antibody constant region. Alternatively the stalk domain may be a synthetic sequence that corresponds to a lly occurring stalk sequence, or may be an entirely synthetic stalk sequence. In some embodiments said stalk domain is a part of human CD8d chain (e.g., NP_001139345.1). In another particular embodiment, said transmembrane and hinge domains comprise a part of human CD8d chain, preferably which comprises at least 70%, ably at least 80%, more preferably at least 90%, 95% 97%, or 99% sequence identity with amino acid sequence selected from the group consisting of SEQ ID NO: 318. In some ments, CARs disclosed herein can comprise an extracellular ligand-binding domain that specifically binds BCMA, CD80 human hinge and transmembrane domains, the CD3: signaling domain, and 4-1BB signaling domain.

Table 3 provides exemplary sequences of domains which can be used in the CARs disclosed herein.

Table 3: Exemplary sequences of CAR Components " Amino Acid Sequence CD80L signal peptide MALPVTALLLPLALLLHAARP 318 chRIIIot hinge GLAVSTISSFFPPGYQ 319 CD80L hinge TTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRG LDFACD 320 IgGl hinge EPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPEVTCVVVDV 321 SHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWL NGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSL TCLVKG FYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKS RWQQGNVFSCSVMH EALH N LSLSPG K CD80i lYlWAPLAGTCGVLLLSLVlTLYC transmembrane (TM) domain 4lBB intracellular KRGRKKLLYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCEL signaling domain (ISD) CD3: intracellular RVKFSRSADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGG signaling domain PQEGLYNELQKDKMAEAYSEIGMKGERRRG YQG LST (ISD) ATKDTYDALHMQALPPR Amino Acid Sequence FceRl a-TM-IC (FceRl FFIPLLVVI LFAVDTGLFISTQQQVTFLLKIKRTRKG FRLLN PH PKPNPKNN 0! chain transmembrane and ellular domain) FceRIB-AITAM (FceRl MDTESNRRANLALPQEPSSVPAFEVLEISPQEVSSGRLLKSASSPPLHTWL B chain without TVLKKEQEFLGVTQILTAMICLCFGTVVCSVLDISHIEGDIFSSFKAGYPFW ITAM) GAI FFSISGMLSIISERRNATYLVRGSLGANTASSIAGGTGlTlLlINLKKSLAY lH l HSCQKFFETKCFMASFSTEIVVMM LFLTl LG LGSAVSLTICGAG EELKG NKVPE 4lBB-IC (4133 CO- KRGRKKLLYI FKQPFMRPVQTTQEEDGCSCRFPEEEEGGCEL stimulatory domain) CD28-IC (CD28 co- GGHSDYMNMTPRRPG PTRKHYQPYAPPRDFAAYRS stimulatory domain) FceRly-SP (signal MIPAVVLLLLLLVEQAAA peptide) FceRl M (FceRl LG EPQLCYI LDAI LFLYGlVLTLLYCRLKlQVRKAAlTSYEKS V chain without ITAM) GSG-PZA (GSG-PZA GSGATNFSLLKQAGDVEENPGP ribosomal skip polypeptide) GSG-TZA (GSG-TZA GSGEGRGSLLTCG DVEENPGP ribosomal skip polypeptide) Downregulation or on of target antigens is commonly observed in cancer cells, ng antigen-loss escape variants. Thus, to offset tumor escape and render immune cell more specific to , the BCMA specific CAR can comprise one or more additional extracellular ligand-binding domains, to simultaneously bind different ts in target thereby augmenting immune cell activation and function. In one embodiment, the extracellular ligand-binding domains can be placed in tandem on the same transmembrane polypeptide, and optionally can be separated by a linker. In some ments, said different extracellular ligand- binding domains can be placed on different transmembrane polypeptides composing the CAR. In some embodiments, the invention relates to a population of CARs, each CAR comprising a different extracellular ligand-binding .

In a particular, the invention relates to a method of engineering immune cells comprising 1O providing an immune cell and expressing at the surface of the cell a population of CARs, each CAR sing different extracellular -binding domains. In another particular embodiment, the invention relates to a method of engineering an immune cell comprising providing an immune cell and introducing into the cell polynucleotides encoding polypeptides composing a population of CAR each one comprising ent extracellular ligand-binding domains. By population of CARs, it is meant at least two, three, four, five, six or more CARs each one sing different extracellular -binding domains. The different extracellular ligand-binding domains according to the ion can preferably simultaneously bind different elements in target thereby augmenting immune cell activation and function. The invention also s to an isolated immune cell which comprises a population of CARs each one comprising different extracellular ligand-binding s.

In another aspect, the invention provides polynucleotides encoding any of the CARs and polypeptides described herein. Polynucleotides can be made and sed by procedures known in the art.

In another aspect, the invention provides compositions (such as a pharmaceutical compositions) comprising any of the cells of the invention. In some embodiments, the composition comprises a cell comprising a polynucleotide encoding any of the CARs described herein. In still other embodiments, the composition comprises either or both of the polynucleotides shown in SEQ ID NO: 367 and SEQ ID NO:368 below: P5A heavy chain variable region 2016/051808 GAGGTGCAGCTGCTGGAATCTGGCGGAGGACTGGTGCAGCCTGGCGGCTCTCTGAG ACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAGCAGCTACGCCATGAACTGGGTGCG CCAGGCCCCTGGCAAAGGCCTGGAATGGGTGTCCGCCATCAGCGATAGCGGCGGCA GCACCTACTACGCCGATAGCGTGAAGGGCCGGTTCACCATCAGCCGGGACAACAGCA AGAACACCCTGTACCTGCAGATGAACAGCCTGCGGGCCGAGGACACCGCCGTGTACT ACTGTGCCANATACTGGCCCATGGACATCTGGGGCCAGGGAACCTTGGTCACCGTCT CCTCA (SEQ ID NO: 367) P5A light chain variable region GAGATCGTGCTGACACAGAGCCCTGGCACCCTGAGCCTGTCTCCAGGCGAAAGAGC 1O CACCCTGTCCTGCAAAGCCAGCCAGAGCGTGTCCAGCAGCTACCTGGCCTGGTATCA GCAAAAGCCCGGCCAGGCTCCCCGGCTGCTGATGTACGATGCCAGCATCAGAGCCA CCGGCATCCCCGACAGATTTTCCGGCTCTGGCAGCGGCACCGACTTCACCCTGACCA TCAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGTACGGCAGCT GGCCCCTGACATTTGGCCAGGGCACAAAGGTGGAGATCAAA (SEQ ID NO: 368) In other embodiments, the composition comprises either or both of the polynucleotides shown in SEQ ID NO: 369 and SEQ ID NO: 370 below: P5AC1 heavy chain variable region GAGGTGCAGCTGCTGGAATCTGGCGGAGGACTGGTGCAGCCTGGCGGCTCTCTGAG ACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAGCAGCTACGCCATGAACTGGGTGCG CCAGGCCCCTGGTAAAGGTTTGGAATGGGTTTCTGCTATTCTGTCGTCTGGTGGTTCT TATGCCGATTCTGTTAAGGGTAGATTCACCATTTCTAGAGACAACTCTAAGAA CACCTTGTACTTGCAAATGAACTCCTTGAGAGCTGAAGATACTGCTGTTTATTACTGTG CTAGATACTGGCCAATGGATATTTGGGGTCAAGGTACTCTGGTCACCGTCTCCTCA (SEQ ID NO: 369) P5AC1 light chain variable region GAGATCGTGCTGACACAGAGCCCTGGCACCCTGAGCCTGTCTCCTGGTGAAAGAGCT TCTTGTAGAGGGGGTCAATCCGTTTCCTCTTCTTATTTGGCTTGGTATCAACA AAAACCAGGTCAAGCTCCAAGATTATTGATGTACGATGCTTCTATTAGAGCCACCGGT ATTCCAGATAGATTTTCTGGTTCTGGTTCCGGTACTGATTTCACTTTGACTATCTCTAGA TTGGAACCAGAAGATTTCGCTGTTTACTACTGTCAACAATATCAGTCTTGGCCATTGAC TTTTGGTCAAGGTACAAAGGTTGAAATCAAA (SEQ ID NO: 370) In other embodiments, the composition comprises either or both of the ponnucIeotides shown in SEQ ID NO: 371 and SEQ ID NO: 372 below: PC1 heavy chain variable region GAGGTGCAGCTGCTGGAATCTGGCGGAGGACTGGTGCAGCCTGGCGGCTCTCTGAG ACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAGCAGCTACCCTATGAGCTGGGTGCG CCAGGCCCCTGGCAAAGGACTGGAATGGGTGTCCGCCATCGGAGGCTCTGGCGGCA GCACCTACTACGCCGATAGCGTGAAGGGCCGGTTCACCATCAGCCGGGACAACAGCA AGAACACCCTGTACCTGCAAATGAACAGCCTGCGGGCCGAGGACACCGCCGTGTACT ACTGTGCCAGATACTGGCCCATGGACAGCTGGGGCCAGGGAACTTTGGTCACCGTCT 1O CCTCA (SEQ ID NO: 371) PC1 light chain le region GAGATCGTGCTGACACAGAGCCCTGGCACCCTGAGCCTGTCTCCAGGCGAAAGAGC CACCCTGTCCTGCAAAGCCAGCCAGAGCGTGTCCAGCACATACCTGGCCTGGTATCA GCAAAAGCCCGGCCAGGCTCCCCGGCTGCTGATCTACGATGCCTCTTCTAGAGCCCC TGGCATCCCCGACAGATTCAGCGGCTCTGGCAGCGGCACCGACTTCACCCTGACCAT CAGCAGACTGGAACCCGAGGACTTCGCCGTGTACTACTGCCAGCAGTACAGCACCAG CCCCCTGACCTTTGGCCAGGGCACAAAGGTGGAGATCAAA (SEQ ID NO: 372).

In other embodiments, the composition comprises either or both of the Ieotides shown in SEQ ID NO: 373 and SEQ ID NO: 374 below: PC1 C12 heavy chain le region GAGGTGCAGCTGCTGGAATCTGGCGGAGGACTGGTGCAGCCTGGCGGCTCTCTGAG ACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAGCAGCTACCCTATGAGCTGGGTGCG CCAGGCCCCTGGTAAAGGTTTGGAATGGGTTTCTGCTATTGGTGGTTCAGGTGGTTG GAGTTATTATGCCGATTCTGTTAAGGGTAGATTCACCATTTCTAGAGACAACTCTAAGA ACACCTTGTACTTGCAAATGAACTCCTTGAGAGCTGAAGATACTGCTGTTTATTACTGT GCTAGATACTGGCCAATGGATTCTTGGGGTCAAGGTACTCTGGTCACCGTCTCCTCA (SEQ ID NO: 373) PC1 C12 light chain variable region GAGATCGTGCTGACACAGAGCCCTGGCACCCTGAGCCTGTCTCCTGGTGAAAGAGCT ACTTTGTCTTGTTGGTTGTCTCAATCTGTTTCCTCTACTTACTTGGCTTGGTATCAACAA AAACCAGGTCAAGCTCCAAGATTATTGATCTACGATGCTTCTTCTAGAGCACCAGGTAT TCCAGATAGATTTTCTGGTTCTGGTTCCGGTACTGATTTCACTTTGACTATCTCTAGATT GGAACCAGAAGATTTCGCTGTTTACTACTGCCAACAATACTCTGAGTGGCCATTGACT TTTGGTCAAGGTACAAAGGTTGAAATCAAA (SEQ ID NO: 374).

In other embodiments, the composition comprises either or both of the polynucleotides shown in SEQ ID NO: 375 and SEQ ID NO: 376 below: COM22 heavy chain variable region GAGGTGCAGCTGCTGGAATCTGGCGGAGGACTGGTGCAGCCTGGCGGCTCTCTGAG ACTGTCTTGTGCCGCCAGCGGCTTCACCTTCAGCAGCTACGCCATGAACTGGGTGCG CCAGGCCCCTGGTAAAGGTTTGGAATGGGTTTCTGCTATTTCTGATTCTGGTGGTTCT 1O TATGCCGATTCTGTTAAGGGTAGATTCACCATTTCTAGAGACAACTCTAAGA ACACCTTGTACTTGCAAATGAACTCCTTGAGAGCTGAAGATACTGCTGTTTATTACTGT ACGCGGTACTGGCCAATGGATATTTGGGGTCAAGGTACTCTGGTCACCGTCTCCTCA (SEQ ID NO: 375) COM22 light chain le region GAGATCGTGCTGACACAGAGCCCTGGCACCCTGAGCCTGTCTCCTGGTGAAAGAGCT ACTTTGTCTTGTTGGTTGTCTCAATCTGTTTCCTCTACTTACTTGGCTTGGTATCAACAA GGTCAAGCTCCAAGATTATTGATCTACGATGCTTCTTCTAGAGCACCAGGTAT TCCAGATAGATTTTCTGGTTCTGGTTCCGGTACTGATTTCACTTTGACTATCTCTAGATT GGAACCAGAAGATTTCGCTGTTTACTACTGCCAACAATACTCTGAGTGGCCATTGACT TTTGGTCAAGGTACAAAGGTTGAAATCAAA (SEQ ID NO: 376).

Expression vectors, and administration of polynucleotide itions are further described herein.

In another aspect, the invention provides a method of making any of the polynucleotides described herein.

Polynucleotides complementary to any such sequences are also encompassed by the invention. Polynucleotides may be single-stranded (coding or antisense) or double- stranded, and may be DNA (genomic, cDNA or synthetic) or RNA molecules. RNA molecules include HnRNA molecules, which contain s and correspond to a DNA molecule in a one-to-one , and mRNA molecules, which do not contain introns.

Additional coding or non-coding sequences may, but need not, be present within a polynucleotide of the invention, and a cleotide may, but need not, be linked to other molecules and/or support materials. cleotides may comprise a native sequence (i.e., an endogenous sequence that encodes an antibody or a portion thereof) or may se a variant of such a sequence. Polynucleotide ts contain one or more substitutions, additions, deletions and/or insertions such that the immunoreactivity of the encoded ptide is not diminished, relative to a native immunoreactive molecule. The effect on the immunoreactivity of the encoded ptide may generally be assessed as described . Variants preferably exhibit at least about 70% identity, more preferably, at least 1O about 80% identity, yet more preferably, at least about 90% identity, and most preferably, at least about 95% identity to a polynucleotide sequence that encodes a native antibody or a portion thereof.

Two polynucleotide or polypeptide ces are said to be "identical" if the sequence of nucleotides or amino acids in the two sequences is the same when aligned for maximum correspondence as bed below. isons between two sequences are typically performed by comparing the sequences over a comparison window to identify and compare local regions of sequence similarity. A "comparison window" as used herein, refers to a segment of at least about 20 contiguous positions, usually 30 to about 75, or 40 to about 50, in which a sequence may be compared to a reference sequence of the same number of contiguous positions after the two sequences are optimally aligned.

Optimal alignment of sequences for comparison may be conducted using the Megalign program in the Lasergene suite of bioinformatics software (DNASTAR, Inc, Madison, WI), using default parameters. This program embodies several alignment schemes described in the following references: Dayhoff, MO, 1978, A model of evolutionary change in proteins - es for detecting distant relationships. In Dayhoff, M.O. (ed.) Atlas of Protein ce and Structure, National Biomedical Research tion, Washington DC Vol. 5, Suppl. 3, pp. 345-358; Hein J., 1990, Unified Approach to Alignment and Phylogenes pp. 626-645 Methods in Enzymology vol. 183, Academic Press, Inc, San Diego, CA; Higgins, D.G. and Sharp, P.M., 1989, CABIOS 153; Myers, E.W. and Muller W., 1988, CABIOS 4:11-17; Robinson, ED, 1971, Comb. Theor. 11:105; Santou, N., Nes, M., 1987, Mol. Biol. Evol. 4:406-425; Sneath, P.H.A. and Sokal, WO 66630 RR, 1973, Numerical Taxonomy the Principles and Practice of Numerical Taxonomy, n Press, San Francisco, CA; Wilbur, W.J. and Lipman, D.J., 1983, Proc. Natl. Acad.

Sci. USA 80:726-730.

Preferably, the "percentage of sequence identity" is determined by comparing two optimally aligned sequences over a window of comparison of at least 20 positions, wherein the portion of the polynucleotide or polypeptide sequence in the comparison window may se additions or deletions (i.e., gaps) of 20 t or less, usually 5 to 15 percent, or to 12 percent, as compared to the reference ces (which does not comprise additions or deletions) for optimal alignment of the two sequences. The percentage is 1O calculated by determining the number of positions at which the identical nucleic acid bases or amino acid residue occurs in both sequences to yield the number of matched positions, dividing the number of matched positions by the total number of positions in the reference sequence (i.e. the window size) and multiplying the results by 100 to yield the percentage of sequence identity.

Variants may also, or alternatively, be substantially homologous to a native gene, or a n or complement thereof. Such polynucleotide ts are capable of hybridizing under moderately stringent conditions to a naturally occurring DNA sequence encoding a native antibody (or a complementary sequence).

Suitable "moderately stringent conditions" include prewashing in a solution of 5 X SSC, 0.5% SDS, 1.0 mM EDTA (pH 8.0); hybridizing at 50°C-65°C, 5 X SSC, ght; ed by washing twice at 65°C for 20 minutes with each of 2X, 0.5X and 0.2X SSC containing 0.1 % SDS.

As used herein, y stringent conditions" or "high stringency ions" are those that: (1) employ low ionic strength and high temperature for washing, for example 0.015 M sodium chloride/0.0015 M sodium citrate/0.1% sodium dodecyl sulfate at 50°C; (2) employ during hybridization a denaturing agent, such as formamide, for example, 50% (v/v) formamide with 0.1% bovine serum albumin/0.1% Ficoll/0.1% polyvinylpyrrolidone/50 mM sodium phosphate buffer at pH 6.5 with 750 mM sodium chloride, 75 mM sodium e at 42°C; or (3) employ 50% formamide, 5 x SSC (0.75 M NaCl, 0.075 M sodium citrate), 50 mM sodium ate (pH 6.8), 0.1% sodium pyrophosphate, 5 x Denhardt’s solution, sonicated salmon sperm DNA (50 ug/ml), 0.1% SDS, and 10% dextran sulfate at 42°C, with WO 66630 washes at 42°C in 0.2 x SSC (sodium chloride/sodium citrate) and 50% formamide at 55°C, followed by a high-stringency wash consisting of 0.1 x SSC ning EDTA at 55°C. The skilled artisan will recognize how to adjust the temperature, ionic th, etc. as necessary to accommodate factors such as probe length and the like.

It will be appreciated by those of ordinary skill in the art that, as a result of the degeneracy of the genetic code, there are many nucleotide sequences that encode a polypeptide as described herein. Some of these polynucleotides bear minimal homology to the nucleotide sequence of any native gene. Nonetheless, polynucleotides that vary due to differences in codon usage are specifically contemplated by the invention. Further, alleles 1O of the genes sing the cleotide sequences ed herein are within the scope of the invention. Alleles are endogenous genes that are altered as a result of one or more ons, such as deletions, additions and/or substitutions of nucleotides. The resulting mRNA and protein may, but need not, have an altered structure or function. Alleles may be identified using standard techniques (such as hybridization, ication and/or database sequence comparison).

The polynucleotides of this invention can be obtained using chemical synthesis, recombinant methods, or PCR. Methods of chemical polynucleotide synthesis are well known in the art and need not be described in detail herein. One of skill in the art can use the sequences provided herein and a commercial DNA synthesizer to e a desired DNA sequence.

For preparing polynucleotides using recombinant methods, a polynucleotide comprising a desired ce can be inserted into a suitable vector, and the vector in turn can be introduced into a suitable host cell for replication and amplification, as further discussed herein. Polynucleotides may be inserted into host cells by any means known in the art. Cells are transformed by introducing an exogenous polynucleotide by direct uptake, endocytosis, transfection, F-mating or electroporation. Once introduced, the exogenous polynucleotide can be maintained within the cell as a tegrated vector (such as a plasmid) or integrated into the host cell genome. The polynucleotide so amplified can be isolated from the host cell by methods well known within the art. See, e.g., Sambrook et al., 1989.

Alternatively, PCR allows reproduction of DNA sequences. PCR technology is well known in the art and is described in US. Patent Nos. 4,683,195, 4,800,159, 4,754,065 and 4,683,202, as well as PCR: The Polymerase Chain Reaction, Mullis et al. eds., Birkauswer Press, Boston, 1994.

RNA can be obtained by using the isolated DNA in an appropriate vector and inserting it into a suitable host cell. When the cell replicates and the DNA is transcribed into RNA, the RNA can then be isolated using methods well known to those of skill in the art, as set forth in Sambrook et al., 1989, supra, for example.

Suitable cloning s may be constructed according to rd techniques, or 1O may be selected from a large number of cloning vectors available in the art. While the g vector selected may vary according to the host cell intended to be used, useful g vectors will generally have the y to self-replicate, may possess a single target for a particular restriction endonuclease, and/or may carry genes for a marker that can be used in selecting clones ning the vector. Suitable examples include ds and bacterial viruses, e.g., pUC18, pUC19, Bluescript (e.g., pBS SK+) and its derivatives, mp18, mp19, pBR322, pMB9, ColE1, pCR1, RP4, phage DNAs, and shuttle vectors such as pSA3 and pAT28. These and many other cloning s are available from commercial vendors such as BioRad, Strategene, and lnvitrogen. sion vectors generally are replicable polynucleotide constructs that contain a polynucleotide according to the invention. It is implied that an expression vector must be replicable in the host cells either as episomes or as an integral part of the chromosomal DNA. Suitable expression vectors e but are not limited to plasmids, viral vectors, including adenoviruses, adeno-associated viruses, retroviruses, s, and expression vector(s) disclosed in PCT Publication No. WO 87/04462. Vector components may generally include, but are not limited to, one or more of the following: a signal sequence; an origin of replication; one or more marker genes; suitable riptional controlling elements (such as promoters, enhancers and terminator). For expression (i.e., translation), one or more translational controlling elements are also usually required, such as ribosome binding sites, translation initiation sites, and stop .

The vectors containing the polynucleotides of interest can be introduced into the host cell by any of a number of appropriate means, including electroporation, transfection employing calcium chloride, rubidium chloride, calcium phosphate, DEAE-dextran, or other substances; microprojectile bombardment; |ipofection; and infection (e.g., where the vector is an infectious agent such as ia . The choice of introducing s or po|ynuc|eotides will often depend on es of the host cell.

A po|ynuc|eotide encoding a BCMA specific CAR disclosed herein may exist in an expression cassette or expression vector (e.g., a d for introduction into a bacterial host cell, or a viral vector such as a baculovirus vector for transfection of an insect host cell, or a plasmid or viral vector such as a lentivirus for transfection of a mammalian host cell). In some embodiments, a polynucleotide or vector can e a nucleic acid sequence 1O encoding ribosomal skip sequences such as, for example without limitation, a sequence encoding a 2A peptide. 2A es, which were identified in the Aphthovirus subgroup of picornaviruses, causes a ribosomal "skip" from one codon to the next without the formation of a peptide bond between the two amino acids encoded by the codons (see lly and t 2001; Atkins, Wills et al. 2007; Doronina, Wu et al. 2008)). By "codon" is meant three nucleotides on an mRNA (or on the sense strand of a DNA molecule) that are translated by a ribosome into one amino acid residue. Thus, two polypeptides can be synthesized from a single, contiguous open reading frame within an imRNA when the ptides are separated by a 2A oligopeptide sequence that is in frame. Such ribosomal skip mechanisms are well known in the art and are known to be used by several vectors for the expression of several proteins encoded by a single messenger RNA.

To direct transmembrane polypeptides into the secretory pathway of a host cell, in some embodiments, a secretory signal sequence (also known as a leader sequence, prepro sequence or pre sequence) is provided in a polynucleotide sequence or vector sequence. The secretory signal sequence is operably linked to the transmembrane nucleic acid ce, i.e., the two sequences are joined in the correct reading frame and positioned to direct the newly synthesized polypeptide into the secretory pathway of the host cell. Secretory signal sequences are commonly positioned 5' to the nucleic acid sequence encoding the polypeptide of interest, gh certain secretory signal sequences may be oned elsewhere in the nucleic acid sequence of interest (see, e.g., Welch et al., US. Patent No. 5,037,743; Holland et al., US. Patent No. 830). In some embodiments the signal peptide comprises the amino acid sequence shown in SEQ ID NO: WO 66630 318 or 329. Those skilled in the art will recognize that, in view of the degeneracy of the genetic code, considerable sequence variation is possible among these polynucleotide molecules. In some embodiments, nucleic acid sequences of the invention are codon- optimized for expression in mammalian cells, preferably for expression in human cells.

Codon-optimization refers to the exchange in a sequence of interest of codons that are generally rare in highly expressed genes of a given species by codons that are lly frequent in highly sed genes of such species, such codons encoding the amino acids as the codons that are being exchanged.

In some embodiments, a polynucleotide according to the invention comprises the 1O nucleic acid sequence selected from the group consisting of: SEQ. ID NO: 1397. The invention relates to polynucleotides comprising a nucleic acid sequence that has at least 70%, preferably at least 80%, more preferably at least 90%, 95%, 97%, or 99 % sequence identity with nucleic acid sequence selected from the group ting of SEQ ID NO: 1397.

Methods of engineering an immune cell Methods of preparing immune cells for use in immunotherapy are provided herein. In some ments, the s comprise introducing a CAR according to the invention into immune cells, and expanding the cells. In some embodiments, the invention relates to a method of engineering an immune cell comprising: providing a cell and sing at the surface of the cell at least one CAR as described above. Methods for engineering immune cells are bed in, for example, PCT Patent Application ation Nos.

WO/2014/039523, WO/2014/184741, 4/191128, WO/2014/184744, and WO/2014/184143, each of which is incorporated herein by reference in its entirety. In some embodiments, the method comprises: transfecting the cell with at least one cleotide encoding CAR as described above, and expressing the polynucleotides in the cell.

In some embodiments, the polynucleotides are present in lentiviral vectors for stable expression in the cells.

In some ments, the method can further comprise a step of genetically modifying a cell by inactivating at least one gene expressing, for example without limitation, a component of the TCR, a target for an immunosuppressive agent, an HLA gene, and/or an immune oint protein such as, for example, PDCD1 or . By vating a gene it is intended that the gene of interest is not expressed in a functional protein form. In some embodiments, the gene to be vated is selected from the group consisting of, for example without limitation, TCRd, TCRB, CD52, GR, PD-1, and CTLA-4. In some embodiments the method comprises vating one or more genes by ucing into the cells a rare-cutting endonuclease able to selectively inactivate a gene by selective DNA cleavage. In some embodiments the rare-cutting endonuclease can be, for e, a transcription activator-like effector nuclease (TALE-nuclease) or Cas9 endonuclease.

In some embodiments, an additional catalytic domain is used with a rare-cutting 1O clease to enhance its capacity to inactivate targeted genes. For e, an additional catalytic domain can be a DNA end-processing enzyme. Non-limiting examples of DNA end-processing enzymes include 5-3' exonucleases, 3-5’ exonucleases, 5-3' alkaline exonucleases, 5' flap endonucleases, helicases, hosphatase, ases and template-independent DNA polymerases. Non-limiting examples of such catalytic domain comprise of a protein domain or catalytically active derivate of the protein domain selected from the group consisting of hExol (EX01_HUMAN), Yeast Exol YEAST), E. coli Exol, Human TREX2, Mouse TREX1, Human TREX1, Bovine TREX1, Rat TREX1, TdT (terminal deoxynucleotidyl transferase) Human DNA2, Yeast DNA2 (DNA2_YEAST). In some embodiments, an additional catalytic domain can have a 3'-5'-exonuclease activity, and In some embodiments, said additional catalytic domain is TREX, more preferably TREX2 catalytic domain (W02012/O58458). In some embodiments, said catalytic domain is encoded by a single chain TREX polypeptide. The additional catalytic domain may be fused to a nuclease fusion protein or ic protein. In some embodiments, the additional catalytic domain is fused using, for example, a e linker.

In some embodiments, the method further comprises a step of introducing into cells an exogeneous nucleic acid comprising at least a sequence homologous to a portion of the target nucleic acid sequence, such that homologous recombination occurs between the target nucleic acid sequence and the exogeneous nucleic acid. In some embodimentss, said exogenous nucleic acid comprises first and second portions which are homologous to region 5' and 3' of the target nucleic acid sequence, respectively. The exogenous nucleic acid may also comprise a third n positioned between the first and the second portion 2016/051808 -1o4- which comprises no homology with the regions 5' and 3' of the target nucleic acid sequence. Following cleavage of the target nucleic acid sequence, a homologous recombination event is stimulated between the target nucleic acid sequence and the exogenous nucleic acid. In some embodiments, homologous sequences of at least about 50 bp, greater than about 100 bp, or greater than about 200 bp can be used within the donor matrix. The exogenous c acid can be, for example without limitation, from about 200 bp to about 6000 bp, more preferably from about 1000 bp to about 2000 bp.

Shared nucleic acid homologies are d in regions ng upstream and downstream the site of the break, and the nucleic acid ce to be introduced is located between the 1O two arms.

In some embodiments, a nucleic acid sively comprises a first region of homology to sequences upstream of said cleavage; a sequence to inactivate a targeted gene selected from the group consisting of TCRd, TCRB, CD52, glucocorticoid receptor (GR), deoxycytidine kinase (DCK), and an immune checkpoint protein such as for example programmed death-1 (PD-1); and a second region of homology to sequences ream of the cleavage. The polynucleotide uction step can be simultaneous, before or after the introduction or expression of the rare-cutting endonuclease. Depending on the location of the target nucleic acid sequence wherein break event has occurred, such exogenous nucleic acid can be used to knock-out a gene, e.g. when exogenous nucleic acid is located within the open reading frame of the gene, or to introduce new sequences or genes of interest. Sequence insertions by using such ous nucleic acid can be used to modify a targeted existing gene, by correction or replacement of the gene (allele swap as a non- Iimiting example), or to up- or down-regulate the expression of the targeted gene (promoter swap as non-limiting example), the targeted gene correction or replacement. In some embodiments, inactivation of a genes ed from the group consisting of TCRd, TCRB, CD52, GR, DCK, and immune checkpoint proteins, can be done at a precise genomic location targeted by a ic TALE-nuclease, wherein said specific TALE-nuclease catalyzes a cleavage and wherein the exogenous nucleic acid successively comprising at least a region of homology and a sequence to vate one targeted gene selected from the group consisting of TCRq, TCRB, CD52, GR, DCK, immune checkpoint proteins which is integrated by homologous recombination. In some ments, several genes can be, successively or at the same time, inactivated by using several TALE-nucleases respectively and specifically ing one defined gene and several specific polynucleotides for specific gene inactivation.

In some embodiments, the method ses inactivation of one or more additional genes selected from the group consisting of TCRd, TCRB, CD52, GR, DCK, and immune checkpoint proteins. In some embodiments, inactivation of a gene can be accomplished by introducing into the cells at least one rare-cutting endonuclease such that the rare-cutting endonuclease specifically catalyzes cleavage in a targeted sequence of the cell genome; and optionally, introducing into the cells an exogenous nucleic acid successively 1O sing a first region of homology to sequences upstream of the cleavage, a sequence to be inserted in the genome of the cell, and a second region of homology to sequences downstream of the cleavage; wherein the introduced exogenous nucleic acid inactivates a gene and integrates at least one exogenous polynucleotide sequence encoding at least one recombinant protein of st. In some ments, theexogenous polynucleotide sequence is integrated within a gene ng a protein selected from the group consisting of TCRo, TCRB, CD52, GR, DCK, and immune oint protein.

In another , a step of genetically modifying cells can se : modifying T cells by inactivating at least one gene expressing a target for an immunosuppressive agent, and; expanding the cells, optionally in presence of the immunosuppressive agent. An immunosuppressive agent is an agent that suppresses immune function by one of l mechanisms of action. An immunosuppressive agent can sh the extent and/or voracity of an immune response. Non-limiting examples of immunosuppressive agents iinclude calcineurin inhibitors, targets of rapamycin, interleukin-2 d-chain rs, inhibitors of e monophosphate dehydrogenase, inhibitors of dihydrofolic acid reductase, corticosteroids, and immunosuppressive antimetabolites. Some cytotoxic immunosuppressants act by inhibiting DNA synthesis. Others may act through activation of T cells or by inhibiting the activation of helper cells. The methods according to the invention allow conferring immunosuppressive resistance to T cells for immunotherapy by inactivating the target of the suppressive agent in T cells. As non-limiting examples, targets for immunosuppressive agent can be a receptor for an immunosuppressive agent such as for example without limtiation CD52, orticoid receptor (GR), FKBP family gene members, and hilin family gene members.

In some embodiments, the genetic modification of the method es expression, in provided cells to engineer, of one rare-cutting endonuclease such that the rare-cutting clease specifically catalyzes cleavage in one targeted gene, thereby inactivating the targeted gene. In some ments, a method of engineering cells ses at least one of the following steps: providing a T cell, such as from a cell culture or from a blood sample; selecting a gene in the T cell expressing a target for an immunosuppressive agent; ucing into the T cell a rare-cutting endonuclease able to selectively inactivate by DNA 1O cleavage, preferably by double-strand break the gene ng a target for the immunosuppressive agent, and ing the cells, optionally in presence of the immunosuppressive agent.

In some embodiments, the method comprises: providing a T cell, such as from a cell culture orfrom a blood sample; selecting a gene in the T cell wherein the gene expresses a target for an immunosuppressive agent; transfecting the T cell with nucleic acid encoding a rare-cutting endonuclease able to selectively inactivate by DNA cleavage, preferably by -strand break the gene encoding a target for the immunosuppressive agent, and expressing the utting endonucleases into the T cells; and expanding the cells, optionally in presence of the immunosuppressive agent.

In some embodiments, the rare-cutting endonuclease specifically targets CD52 or GR. In some embodiments, the gene selected for inactivation encodes CD52, and the immunosuppressive treatment comprises a humanized antibody targeting CD52 antigen.

In some embodiments, the gene selected for inactivation encodes GR, and the immunosuppressive treatment comprises a corticosteroid such as dexamethasone. In some embodiments, the gene selected for vation is a FKBP family gene member or a variant thereof and the immunosuppressive treatment comprises FK506, also known as Tacrolimus orfujimycin. In some embodiments, the FKBP family gene member is FKBP12 or a variant thereof. In some embodiments, gene selected for inactivation is a cyclophilin family gene member or a variant thereof and the immunosuppressive treatment comprises cyclosporine.

In some embodiments, the rare-cutting endonuclease can be, for example, a meganuclease, a zinc finger nuclease, or a TALE-nuclease (TALEN). In some embodiments, the rare-cutting endonuclease is a TALE-nuclease.

Also provided herein are methods of engineering T cells, suitable for immunotherapy, wherein the s se: genetically modifying T cells by inactivating at least immune checkpoint protein. In some embodiments the immune checkpoint protein is, for example, PD-1 and/or CTLA-4.ln some embodiments, methods of genetically modifying a cell comprises: modifying T cells by inactivating at least one immune checkpoint protein; and expanding the cells. lmmune checkpoint proteins include, 1O but are not limited to Programmed Death 1 (PD-1, also known as PDCD1 or CD279, accession number: NM_OO5018), Cytotoxic hocyte Antigen 4 4, also known as CD152, k accession number AF414120.1), LAG3 (also known as CD223, accession number: NM_OO2286.5), Tim3 (also known as HAVCR2, GenBank ion : JXO49979.1), BTLA (also known as CD272, accession number: NM_181780.3), BY55 (also known as CD160, GenBank accession number: CR541888.1), TlGlT (also known as VSTM3, accession number: NM_173799), B7H5 (also known as C10orf54, homolog of mouse vista gene, accession number: NM_O22153.1), LAIR1 (also known as CD305, GenBank accession number: CR542051.1), SIGLEC1O (GeneBank accession number: AY358337.1), 284 (also known as CD244, accession number: NM_OO1166664.1), which directly inhibit immune cells. For example, CTLA-4 is a cell-surface protein expressed on certain CD4 and CD8 T cells; when engaged by its ligands (87-1 and 87-2) on antigen presenting cells, T cell activation and effectorfunction are inhibited.

In some embodiments, said method to engineer cells comprises at least one of the ing steps: providing a T cell, such as from a cell culture or from a blood sample; introducing into the T cell a rare-cutting endonuclease able to selectively vate by DNA ge, preferably by double-strand break one gene encoding a immune checkpoint protein; and expanding the cells. In some embodiments, the method comprises: providing a T cell, such as from a cell culture or from a blood sample; transfecting said T cell with nucleic acid encoding a rare-cutting endonuclease able to ively inactivate by DNA cleavage, preferably by double-strand break a gene encoding a immune checkpoint protein; expressing the utting endonucleases into the T cells; expanding the cells. In some embodiments, the rare-cutting endonuclease specifically targets a gene selected from the group consisting of: PD-1, CTLA-4, LAG3, Tim3, BTLA, BY55, TlGlT, B7H5, LAIR1, SIGLEC10, 284, TCRd, and TCRB. In some embodiments, the rare-cutting endonuclease can be a meganuclease, a zinc finger nuclease or a TALE-nuclease. In some embodiments, the rare-cutting endonuclease is a TALE-nuclease.

In some embodiments, the present invention can be particularly le for allogeneic immunotherapy. In such embodiments, cells may be modified by a method comprising: inactivating at least one gene encoding a component of the T cell receptor (TCR) in T cells; and expanding the T cells. In some embodiments, the genetic 1O modification of the method relies on the expression, in provided cells to engineer, of one rare-cutting endonuclease such that the rare-cutting endonuclease specifically catalyzes cleavage in one ed gene thereby inactivating the targeted gene. In some embodiments, said method to engineer cells comprises at least one of the following steps: ing a T cell, such as from a cell culture or from a blood sample; introducing into the T cell a rare-cutting endonuclease able to selectively inactivate by DNA cleavage, preferably by double-strand break at least one gene ng a component of the T cell receptor (TCR), and expanding the cells.

In some embodiments, the method comprises: ing a T cell, such as from a cell culture or from a blood sample; transfecting said T cell with c acid encoding a rare- cutting endonuclease able to selectively inactivate by DNA cleavage, preferably by double- strand break at least one gene encoding a component of the T cell receptor (TCR); expressing the rare-cutting endonucleases into the T cells; sorting the transformed T cells, which do not express TCR on their cell surface;and ing the cells.

In some embodiments, the rare-cutting endonuclease can be a meganuclease, a zinc finger nucleasec or a uclease. In some embodiments, the rare-cutting endonuclease is a TALE-nuclease. In some embodiments the TALE-nucleases recognize and cleave a sequence encoding TCRq or TCRB. In some embodiments a uclease comprises a ptide ce selected from the amino acid sequence shown in SEQ ID NO: 334, 335, 336, 337, 338, 339, 340, or 341 TALE-nuclease polypeptide sequences: 2016/051808 Repeat TRAC T01 -L LTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLL PVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQA LETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIA SHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQALETVQALLPVLCQAHGLT PEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQALETVQALLPV LCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQALE TVQALLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPEQVVAIASN IGGKQALETVQALLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPE QVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGRPALE (SEQ ID NO: 334) Repeat TRAC T01 -R LTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLL PVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQA LETVQALLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPEQVVAIA SHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLT PQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPV LTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQALE TVQALLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASN IGGKQALETVQALLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQ QVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGRPALE (SEQ ID NO: 335) Regeat TRBC T01 -L LTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLL PVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQ ALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPQQVVAI ASNGGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHG LTPEQVVAIASNIGGKQALETVQALLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLP VLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQAL ETVQRLLPVLCQAHGLTPEQVVAIASN|GGKQALETVQALLPVLCQAHGLTPQQVVAIASN GGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPE QVVAIASNIGGKQALETVQALLPVLCQAHGLTPQQVVAIASNGGGRPALE (SEQ ID NO: 336) Regeat TRBC TO1-R NPQRSTVVWLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGK QALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVA IASNNGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHG LTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLL 1O PVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQ ALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPQQVVAI ASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGL TPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLP VLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGRPAL E (SEQ ID NO: 337) Repeat TRBC T02-L LTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLL PVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQA LETVQALLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIA SHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLT IASNNGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQALETVQALLPV LTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALE TVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPEQVVAIASH DGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPE QVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGRPALE (SEQ ID NO: 338) Repeat TRBC T02-R LTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLL PVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPEQVVAIASNIGGKQA LETVQALLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPEQVVAIA SN|GGKQALETVQALLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLT PEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPV LTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALE TVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPEQVVAIASH DGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTP QQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGRPALE (SEQ ID NO: 339) 1O Repeat CD52_T02-L LTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLL PVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQA LETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPEQVVAIA SHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLT PEQVVAIASNIGGKQALETVQALLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPV LCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALE TVQRLLPVLCQAHGLTPEQVVAIASNIGGKQALETVQALLPVLCQAHGLTPEQVVAIASH DGGKQALETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPE QVVAIASN|GGKQALETVQALLPVLCQAHGLTPQQVVAIASNGGGRPALE (SEQ ID NO: 340) Repeat CD52_T02-R LTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNNGGKQALETVQRLL PVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQA LETVQRLLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIA SNGGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALETVQRLLPVLCQAHGL TPEQVVAIASNIGGKQALETVQALLPVLCQAHGLTPEQVVAIASHDGGKQALETVQRLLPV LCQAHGLTPEQVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGKQALE PVLCQAHGLTPQQVVAIASNNGGKQALETVQRLLPVLCQAHGLTPQQVVAIASN GGGKQALETVQRLLPVLCQAHGLTPEQVVAIASN|GGKQALETVQALLPVLCQAHGLTPE QVVAIASHDGGKQALETVQRLLPVLCQAHGLTPQQVVAIASNGGGRPALE (SEQ ID NO: 341) In another aspect, one another step of genetically modifying cell can be a method of expanding TCRd deficient T cells comprising introducing into the T cell pTd (also known as preTCRd) or a onal variant thereof and expanding the cells, optionally through stimulation of the CD3 complex. In some embodiments, the method comprises: a) transfecting the cells with c acid encoding at least a fragment of pTd to support CD3 surface expression; b) sing said qu into the cells; and c) expanding the cells, ally through stimulation of the CD3 complex.

Also provided are methods of preparing T cells for immunotherapy comprising steps 1O of the method for expansion for T cell. In some embodiments, the pTd polynucleotide ce can be introduced randomly or by homologous recombination. In some ments, the insertion can be associated with the inactivation of the TCRq gene.

Different functional variants of pTd can be used. A "functional variant" of the peptide refers to a molecule substantially similar to either the entire peptide or a fragment thereof. A "fragment" of the pTd or functional variant thereof refers to any subset of the molecule, that is, a shorter e than the full-length pTd. In some embodiments, pTd or functional variants can be, for example, full-length qu or a C-terminal truncated pTd version. C- terminal ted pTd lacks in C-terminal end one or more es. As non limiting examples, C-terminal truncated pTd version lacks 18, 48, 62, 78, 92, 110 or 114 residues from the C-terminus of the protein. Amino acid sequence variants of the peptide can be prepared by mutations in the DNA which encodes the peptide. Such functional variants include, for example, deletions from, or insertions or substitutions of, residues within the amino acid sequence. Any combination of deletion, insertion, and substitution may also be made to arrive at the final construct, ed that the final construct possesses the desired ty, in particular the restoration of a functional CD3 complex. In preferred embodiment, at least one mutation is introduced in the different pTd versions as described above to affect dimerization. As non limiting example, mutated residue can be at least W46R, D22A, K24A, R102A or R117A of the human pTd protein or aligned positions using CLUSTALW method on pTd family or gue . ably pTd or variant thereof as described above comprise the mutated residue W46R or the d residues D22A, K24A, R102A and R117A. In some embodiments, said pTd or variants are also fused to a signal-transducing domain such as CD28, 0X40, ICOS, CD27, CD137 (4-188) and CD8 as non limiting examples. The extracellular domain of pTd or variants as described above can be fused to a fragment of the TCRd n, particularly the transmembrane and intracellular domain of TCRd. pTd variants can also be fused to the intracellular domain of TCRor.

In some embodiments, pTd versions can be fused to an ellular -binding domain. In some embodiments, pTd or onal variant thereof is fused to a single chain antibody fragment (scFv) comprising the light and the heavy variable fragment of a target antigen specific monoclonal antibody joined by a flexible linker. 1O The term "TCRd deficient T cell" refers to an isolated T cell that lacks expression of a functional TCRd chain. This may be accomplished by ent means, as non limiting examples, by engineering a T cell such that it does not express any functional TCRd on its cell surface or by engineering a T cell such that it produces very little functional TCRd chain on its surface or by engineering a T cell to express mutated or truncated form of TCRd chain. TCRd deficient cells can no longer be expanded through CD3 complex. Thus, to overcome this problem and to allow proliferation of TCRd deficient cells, pTd or functional variant thereof is introduced into the cells, thus restoring a functional CD3 complex. In some embodiments, the method further comprises introducing into said T cells rare-cutting endonucleases able to selectively vate by DNA cleavage one gene encoding one component of the T cell receptor (TCR). In some embodiments, the rare-cutting endonuclease is a TALE-nuclease.

In r aspect, engineered T cells obtained by the methods described herein can be contacted with bispecific antibodies. For example, the T cells can be contacted with bispecific dies ex vivo prior to administration to a patient, or in vivo following administration to a patient. ific dies comprise two variable regions with distinct antigen properties that facilitate bringing the engineered cells into proximity to a target antigen. As a non-limiting example, a bispecific antibody can be directed against a tumor marker and cyte antigen, such as for example t limitation CD3, and has the potential to redirect and activate any circulating T cells t tumors.

In some embodiments, polynucleotides encoding polypeptides according to the present invention can be mRNA which is introduced directly into the cells, for example by electroporation. In some embodiments, lse technology can be used to transiently permeabilize living cells for ry of material into the cells. Parameters can be modified in order to determine ions for high transfection efficiency with minimal mortality.

Also provided herein are methods of transfecting T cell. In some embodiments, the method comprises: ting a T cell with RNA and applying to T cell an agile pulse sequence consisting of: (a) an electrical pulse with a voltage range from about 2250 to 3000 V per centimeter; (b) a pulse width of 0.1 ms; (c) a pulse interval of about 0.2 to 10 ms between the electrical pulses of step (a) and (b); (d) an electrical pulse with a e range from about 2250 to 3000 V with a pulse width of about 100 ms and a pulse interval of 1O about 100 ms between the electrical pulse of step (b) and the first electrical pulse of step (c); and (e) four electrical pulses with a voltage of about 325 V with a pulse width of about 0.2 ms and a pulse interval of 2 ms between each of 4 ical pulses. In some embodiments, a method of transfecting T cell comprising contacting said T cell with RNA and applying to T cell an agile pulse sequence comprising: (a) an electrical pulse with a voltage of about 2250, 2300, 2350, 2400, 2450, 2500, 2550, 2400, 2450, 2500, 2600, 2700, 2800, 2900 or 3000V per centimeter; (b) a pulse width of 0.1 ms; (c) and a pulse interval of about 0.2, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 ms between the electrical pulses of step (a) and (b); (d) one electrical pulse with a voltage range from about 2250, of 2250, 2300, 2350, 2400, 2450, 2500, 2550, 2400, 2450, 2500, 2600, 2700, 2800, 2900 or 3000V with a pulse width of 100 ms and a pulse interval of 100 ms between the ical pulse of step (b) and the first electrical pulse of step (c); and (e) 4 electrical pulses with a voltage of about 325 V with a pulse width of about 0.2 ms and a pulse interval of about 2 ms between each of 4 electrical pulses. Any values included in the value range described above are disclosed in the present application. Electroporation medium can be any suitable medium known in the art. In some embodiments, the electroporation medium has conductivity in a range spanning about 0.01 to about 1.0 milliSiemens.

In some embodiments, as non limiting examples, an RNA encodes a rare-cutting endonuclase, one monomer of the rare-cutting endonuclease such as half-TALE-nuclease, a CAR, at least one component of the multi-chain ic antigen receptor, a pTd or functional t thereof, an exogenous nucleic acid, and/or one additional catalytic domain. 2016/051808 Engineered immune cells The invention also es engineered immune cells comprising any of the CAR polynucleotides described herein. In some embodiments, a CAR can be introduced into an immune cell as a transgene via a plasmid vector. In some embodiments, the plasmid vector can also contain, for example, a selection marker which provides for identification and/or selection of cells which received the vector.

CAR polypeptides may be sized in situ in the cell after introduction of polynucleotides ng the CAR polypeptides into the cell. Alternatively, CAR 1O polypeptides may be be produced outside of cells, and then introduced into cells. Methods for introducing a polynucleotide construct into cells are known in the art. In some embodiments, stable transformation methods can be used to integrate the polynucleotide construct into the genome of the cell. In other embodiments, transient ormation methods can be used to transiently express the polynucleotide construct, and the polynucleotide construct not integrated into the genome of the cell. In other embodiments, virus-mediated methods can be used. The polynucleotides may be introduced into a cell by any suitable means such as for e, recombinant viral vectors (e.g. retroviruses, adenoviruses), liposomes, and the like. Transient ormation s include, for example without limitation, microinjection, electroporation or pa rticle bombardment.

Polynucleotides may be included in vectors, such as for example plasmid vectors or viral vectors.

Also provided herein are ed cells and cell lines obtained by the above- described methods of engineering cells provided herein. In some ments, an isolated cell comprises at least one CAR as described above. In some embodiments, an isolated cell comprises a population of CARs, each CAR sing different extracellular ligand- binding domains.

Also provided herein are isolated immune cells obtained according to any one of the methods described above. Any immune cell capable of expressing heterologous DNAs can be used for the purpose of expressing the CAR of interest. In some embodiments, the immune cell is a T cell. In some embodiments, an immune cell can be derived from, for e without limitation, a stem cell. The stem cells can be adult stem cells, non-human embryonic stem cells, more particularly non-human stem cells, cord blood stem cells, progenitor cells, bone marrow stem cells, induced pluripotent stem cells, totipotent stem cells or hematopoietic stem cells. Representative human cells are CD34+ cells. The isolated cell can also be a dendritic cell, killer dendritic cell, a mast cell, a NK-cell, a B-cell or a T cell selected from the group consisting of inflammatory T-lymphocytes, cytotoxic T- lymphocytes, regulatory T-lymphocytes or helper T-lymphocytes. l n some embodiments, the cell can be derived from the group consisting of CD4+ hocytes and CD8+ T- lymphocytes.

Prior to expansion and genetic modification, a source of cells can be ed from a 1O subject through a variety of non-limiting s. Cells can be obtained from a number of miting s, including peripheral blood mononuclear cells, bone marrow, lymph node tissue, cord blood, thymus tissue, tissue from a site of infection, ascites, pleural effusion, spleen tissue, and tumors. In some embodiments, any number of T cell lines available and known to those skilled in the art, may be used. In some embodiments, cells can be derived from a healthy donor, from a patient diagnosed with cancer or from a patient diagnosed with an infection. In some embodiments, cells can be part of a mixed population of cells which present different phenotypic characteristics.

Also provided herein are cell lines ed from a transformed T cell according to any of the described methods. Also provided herein are modified cells resistant to an immunosuppressive treatment. In some embodiments, an ed cell according to the invention comprises a polynucleotide encoding a CAR.

The immune cells of the invention can be activated and expanded, either prior to or after genetic modification of the T cells, using methods as generally described, for example without limitation, in US. Patents 6,352,694; 6,534,055; 6,905,680; 6,692,964; 5,858,358; 6,887,466; 6,905,681; 7,144,575; 7,067,318; 7,172,869; 7,232,566; 7,175,843; 5,883,223; 6,905,874; 6,797,514; 6,867,041; and US. Patent ation ation No. 20060121005. T cells can be expanded in vitro or in vivo. Generally, the T cells of the invention can be expanded, for example, by contact with an agent that stimulates a CD3 TCR x and a co-stimulatory molecule on the surface of the T cells to create an activation signal for the T cell. For example, chemicals such as calcium ionophore A23187, phorbol 12-myristate tate (PMA), or mitogenic lectins like emagglutinin (PHA) can be used to create an activation signal for the T cell.

In some embodiments, T cell populations may be stimulated in vitro by contact with, for example, an D3 antibody, or antigen-binding fragment thereof, or an anti-CD2 antibody immobilized on a surface, or by contact with a protein kinase C tor (e.g., bryostatin) in conjunction with a calcium ionophore. For mulation of an accessory molecule on the surface of the T cells, a ligand that binds the accessory molecule is used.

For example, a population of T cells can be contacted with an anti-CD3 antibody and an anti-CD28 antibody, under conditions appropriate for stimulating proliferation of the T cells. 1O Conditions appropriate for T cell culture include an appropriate media (e.g., Minimal Essential Media or RPMI Media 1640 or, X-vivo 5, (Lonza)) that may contain s necessary for proliferation and viability, including serum (e.g., fetal bovine or human serum), interleukin-2 (IL-2), insulin, lFN-y, lL-4, lL-7, GM-CSF, lL-10, lL-2, lL-15, TGFp, and TNF, or any other additives for the growth of cells known to the skilled artisan. Other additives for the growth of cells include, but are not limited to, surfactant, plasmanate, and reducing agents such as N-acetyl- cysteine and 2—mercaptoethanoi. Media can include RPMI 1640, A1M-V, DMEM, MEM, a- MEM, F-12, X-Vivo 1, and X-Vivo 20, Optimizer, with added amino acids, sodium te, and vitamins, either serum-free or supplemented with an appropriate amount of serum (or plasma) or a defined set of hormones, and/or an amount of cytokine(s) sufficient for the growth and expansion of T cells. Antibiotics, e.g., llin and streptomycin, are included only in mental cultures, not in cultures of cells that are to be infused into a t. The target cells are ined under conditions necessary to support growth, for example, an appropriate temperature (e.g., 37° C) and atmosphere (e.g., air plus 5% C02). T cells that have been exposed to varied stimulation times may exhibit different characteristics In some embodiments, the cells of the invention can be expanded by co-culturing with tissue or cells. The cells can also be expanded in vivo, for example in the subject's blood after strating the cell into the subject.

In some embodiments, an isolated cell ing to the present invention comprises one inactivated gene selected from the group consisting of CD52, GR, PD-1, CTLA-4, LAGB, Tim3, BTLA, BY55, TIGIT, B7H5, LAIR1, SIGLEC10, 284, HLA, TCRd and TCRB 2016/051808 and/or expresses a CAR, a multi-chain CAR and/or a pTd transgene. In some embodiments, an isolated cell comprises polynucleotides encoding polypeptides comprising a multi-chain CAR. In some embodiments, the isolated cell according to the present invention comprises two inactivated genes selected from the group ting of: CD52 and GR, CD52 and TCRd, CDR52 and TCRB, GR and TCRd, GR and TCRB, TCRd and TCRB, PD-1 and TCRd, PD-1 and TCRB, CTLA-4 and TCRd, CTLA-4 and TCRB, LAG3 and TCRd, LAG3 and TCRB, Tim3 and TCRd, Tim3 and TCRB, BTLA and TCRd, BTLA and TCRB, BY55 and TCRd, BY55 and TCRB, TlGlT and TCRd, TlGlT and TCRB, B7H5 and TCRd, B7H5 and TCRB, LAIR1 and TCRd, LAIR1 and TCRB, SIGLEC10 and 1O TCRd, SIGLEC1O and TCRB, 284 and TCRd, 284 and TCRB and/or ses a CAR, a multi-chain CAR and a pTd transgene.

In some embodiments, TCR is rendered not functional in the cells according to the invention by inactivating TCRd gene and/or TCRB gene(s). In some embodiments, a method to obtain modified cells derived from an individual is provided, wherein the cells can proliferate independently of the major histocompatibility x (MHC) signaling pathway.

Modified cells, which can proliferate independently of the MHC signaling pathway, susceptible to be obtained by this method are encompassed in the scope of the present invention. Modified cells disclosed herein can be used in for treating patients in need thereof against Host versus Graft (HvG) rejection and Graft versus Host Disease (GvHD); therefore in the scope of the present invention is a method of treating patients in need thereof against Host versus Graft (HvG) rejection and Graft versus Host Disease (GvHD) comprising treating said patient by stering to said patient an effective amount of modified cells sing inactivated TCRd and/or TCRB genes.

In some embodiments, the immune cells are engineered to be resistant to one or more chemotherapy drugs. The chemotherapy drug can be, for example, a purine nucleotide ue (PNA), thus making the immune cell suitable for cancer ent combining adoptive immunotherapy and chemotherapy. ary PNAs include, for example, clofarabine, fludarabine, and cytarabine, alone or in combination. PNAs are metabolized by deoxycytidine kinase (dCK) into mono-, di-, and tri-phosphate PNA. Their osphate forms compete with ATP for DNA synthesis, act as pro-apoptotic agents, and are potent inhibitors of ribonucleotide reductase (RNR), which is involved in trinucleotide production. Provided herein are BCMA specific CAR-T cells comprising an inactivated dCK gene. In some embodiments, the dCK knockout cells are made by transfection of T cells using polynucleotides encoding specific TAL-nulcease directed t dCK genes by, for example, electroporation of mRNA. The dCK knockout BCMA specific CAR-T cells are resistant to PNAs, including for example clorofarabine and/or fludarabine, and in T cell xic activity toward BCMA-expressing cells.

In some embodiments, isolated cells or cell lines of the ion can comprise a pTd or a functional variant thereof. In some embodiments, an isolated cell or cell line can be further genetically modified by inactivating the TCRd gene. 1O In some embodiments, the CAR-T cell comprises a polynucleotide encoding a suicide polypeptide, such as for example RQR8. See, e.g., W02013153391A, which is hereby orated by nce in its entirety. In CAR-T cells comprising the cleotide, the suicide polypeptide is expressed at the surface of a CAR-T cell. In some ments, the suicide polypeptide comprises the amino acid sequence shown in SEQ ID NO: 342.

CPYSNPSLCSGGGGSELPTQGTFSNVSTNVSPAKPTTTACPYSNPSLCSGGGGSP APRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFACDIYIWAPLAGTCGVLLLS CNHRNRRRVCKCPRPVV (SEQ ID NO: 342) The e polypeptide may also comprise a signal peptide at the amino terminus. In some embodiments, the suicide polypeptide comprises the amino acid sequence shown in SEQ ID NO: 400.

MGTSLLCWMALCLLGADHADACPYSNPSLCSGGGGSELPTQGTFSNVSTNVSPAKPTTT ACPYSNPSLCSGGGGSPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFACDIYI WAPLAGTCGVLLLSLVITLYCNHRNRRRVCKCPRPVV (SEQ ID NO: 400) When the suicide polypeptide is expressed at the surface of a CAR-T cell, binding of rituximab to the R epitopes of the polypeptide causes lysis of the cell. More than one molecule of rituximab may bind per polypeptide expressed at the cell surface. Each R epitope of the polypeptide may bind a separate molecule of rituximab. Deletion of BCMA specific CAR-T cells may occur in vivo, for example by administering rituximab to a patient.

The decision to delete the transferred cells may arise from undesirable effects being detected in the patient which are attributable to the transferred cells, such as for example, when unacceptable levels of ty are detected.

In some ments, the CAR-T cell comprises a selected epitope within the scFv having a specificity to be recognized by a specific antibody. See, e.g., PCT application "mAb-DRIVEN CHIMERIC ANTIGEN RECEPTOR SYSTEMS FOR G/DEPLETING ENGINEERED IMMUNE CELLS," filed on January 25, 2016, which is hereby orated by reference in its entirety. Such an epitope facilitates sorting and/or depleting the CAR-T cells. The epitope can be selected from any number of epitopes known in the art. In some embodiments, the epitope can be a target of a monoclonal antibody approved for medical 1O use, such as, for example without limitation, the CD20 epitope recognized by rituximab. In some embodiments, the epitope comprises the amino acid sequence shown in SEQ ID NO: 397.

CPYSNPSLC (SEQ ID NO: 397) In some embodiments, the epitope is located within the CAR. For e without limitation, the epitope can be d n the scFv and the hinge of a CAR. In some ments, two instances of the same epitope, separate by linkers, may be used in the CAR. For example, the polypeptide comprising the amino acid sequence shown in SEQ ID NO: 398 can be used within a CAR, located between the light chain variable region and the hinge.

GSGGGGSCPYSNPSLCSGGGGSCPYSNPSLCSGGGGS (SEQ ID NO: 398) In some embodiments, the epitope-specific antibody may be conjugated with a cytotoxic drug. It is also possible to promote CDC cytotoxicity by using engineered antibodies on which are grafted component(s) of the complement system. In some embodiments, activation of the CAR-T cells can be modulated by ing the cells using an antibody which recognizes the epitope.

Therapeutic applications ed cells obtained by the methods described above, or cell lines derived from such isolated cells, can be used as a medicament. In some embodiments, such a medicament can be used for treating cancer. In some embodiments, the cancer is multiple myeloma malignant plasma cell sm, Hodgkin’s lymphoma, nodular lymphocyte predominant Hodgkin’s lymphoma, Kahler’s disease and Myelomatosis, plasma cell leukemia, plasmacytoma, B-cell prolymphocytic leukemia, hairy cell leukemia, B-cell non- n’s lymphoma (NHL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), acute lymphocytic ia (ALL), chronic myeloid leukemia (CML), follicular lymphoma, Burkitt’s lymphoma, marginal zone lymphoma, mantle cell lymphoma, large cell lymphoma, precursor B-lymphoblastic lymphoma, myeloid leukemia, Waldenstrom’s lobulienemia, diffuse large B cell lymphoma, follicular lymphoma, marginal zone lymphoma, mucosa-associated lymphatic tissue lymphoma, small cell cytic lymphoma, mantle cell lymphoma, Burkitt lymphoma, primary tinal (thymic) large B- 1O cell lymphoma, lymphoplasmactyic lymphoma, Waldenstrom macroglobulinemia, nodal marginal zone B cell lymphoma, splenic marginal zone lymphoma, intravascular large B- cell lymphoma, primary effusion lymphoma, lymphomatoid granulomatosis, T cell/histiocyte-rich large B-cell lymphoma, primary central nervous system lymphoma, primary cutaneous diffuse large B-cell lymphoma (leg type), EBV ve diffuse large B- cell lymphoma of the elderly, diffuse large B-cell lymphoma associated with mation, intravascular large B-cell lymphoma, ALK-positive large B-cell lymphoma, plasmablastic ma, large B-cell lymphoma arising in HHV8—associated multicentric Castleman e, B-cell ma unclassified with features intermediate between diffuse large B- cell lymphoma and Burkitt lymphoma, B-cell lymphoma unclassified with features intermediate between diffuse large B-cell lymphoma and classical Hodgkin lymphoma, or another B-cell related lymphomas.

In some ments, an isolated cell according to the invention, or cell line derived from the isolated cells, can be used in the manufacture of a medicament for treatment of a cancer in a patient in need thereof.

Also provided herein are methods for treating patients. In some ments the method comprises.providing an immune cell of the ion to a patient in need f. In some embodiments, the method comprises a step of administrating transformed immune cells of the ion to a patient in need thereof.

In some embodiments, T cells of the invention can undergo robust in vivo T cell expansion and can persist for an extended amount of time.

Methods of treatment of the invention can be ameliorating, curative or prophylactic.

The method of the invention may be either part of an autologous immunotherapy or part of an allogenic immunotherapy treatment. The invention is particularly suitable for allogeneic immunotherapy. T cells from donors can be transformed into non-alloreactive cells using standard ols and reproduced as needed, y producing CAR-T cells which may be administered to one or several patients. Such CAR-T cell therapy can be made available as an "off the shelf" therapeutic product.

Cells that can be used with the disclosed methods are described in the previous section. Treatment can be used to treat patients diagnosed with, for example, . 1O s that may be treated include, for example without tion, cancers that involve B lymphocytes, including any of the listed cancers. Types of cancers to be treated with the CARs and CAR-T cells of the invention include, but are not limited to certain leukemia or lymphoid malignancies. Adult tumors/cancers and pediatric tumors/cancers are also included. In some embodiments, the treatment can be in combination with one or more therapies against cancer ed from the group of antibodies y, chemotherapy, cytokines therapy, dendritic cell therapy, gene therapy, hormone therapy, laser light therapy and radiation therapy.

In some embodiments, treatment can be administrated into patients undergoing an suppressive treatment. Indeed, the invention preferably relies on cells or population of cells, which have been made resistant to at least one immunosuppressive agent due to the inactivation of a gene encoding a receptor for such immunosuppressive agent. In this aspect, the immunosuppressive treatment should help the selection and expansion of the T cells according to the ion within the patient. The stration of the cells or population of cells according to the invention may be d out in any convenient manner, including by aerosol inhalation, injection, ingestion, transfusion, implantation or transplantation. The compositions bed herein may be administered to a patient subcutaneously, intradermaliy, intratumorally, intranodally, intramedullary, intramuscularly, by intravenous or intralymphatic injection, or intraperitoneally. In one embodiment, the cell compositions of the invention are ably administered by enous injection.

In some embodiments the administration of the cells or population of cells can comprise administration of, for example, about 104 to about 109 cells per kg body weight including all integer values of cell numbers within those . In some ments the administration of the cells or population of cells can comprise administration of about 105 to 106 cells per kg body weight including all integer values of cell numbers within those ranges. The cells or population of cells can be administrated in one or more doses. In some embodiments, said effective amount of cells can be administrated as a single dose. In some embodiments, said effective amount of cells can be administrated as more than one dose over a period time. Timing of administration is within the judgment of managing physician and depends on the clinical condition of the patient. The cells or population of cells may be obtained from any source, such as a blood bank or a donor. While dual 1O needs vary, determination of optimal ranges of effective amounts of a given cell type for a particular disease or conditions within the skill of the art. An effective amount means an amount which provides a therapeutic or prophylactic benefit. The dosage administrated will be ent upon the age, health and weight of the recipient, kind of concurrent treatment, if any, frequency of treatment and the nature of the effect desired. In some embodimetns, an effective amount of cells or ition comprising those cells are administrated parenterally. In some embodiments, administration can be an enous administration. In some embodimetns, administration can be directly done by injection within a tumor.

In some embodiments of the invention, cells are administered to a patient in conjunction with (e.g., before, simultaneously or following) any number of relevant treatment modalities, including but not limited to ent with agents such as monoclonal antibody therapy, CCR2 antagonist (e.g., INC-8761), antiviral y, cidofovir and eukin-2, Cytarabine (also known as ARA-C) or nataliziimab treatment for MS patients or efaliztimab treatment for sis patients or other treatments for PML patients. In some embodiments, BCMA specific CAR-T cells are administered to a patient in conjunction with one or more of the following: an anti-PD-1 antibody (e.g., nivolumab, pembrolizumab, or PF-06801591), an anti-PD-L1 antibody (e.g., avelumab, atezolizumab, or durvalumab), an anti-0X40 antibody (e.g., 18600), an anti1BB antibody (e.g., PF-O5082566), an CSF antibody (e.g., 0324), an anti-GITR antibody, and/or an anti-TlGlT antibody. In some embodiments, a BCMA specific CAR comprising the amino acid sequence shown in SEQ ID NO: 396 is administered to a patient in conjunction with anti- PD-L1 dy avelumab. In further ments, the T cells of the invention may be used in ation with chemotherapy, radiation, immunosuppressive agents, such as cyclosporin, azathioprine, methotrexate, mycophenolate, and FK506, dies, or other immunoablative agents such as CAMPATH, anti-CD3 antibodies or other antibody therapies, cytoxin, fludaribine, cyclosporin, FK506, rapamycin, mycoplienolic acid, steroids, FR901228, cytokines, and/or irradiation. These drugs inhibit either the calcium dependent phosphatase calcineurin (cyclosporine and FK506) or inhibit the p7086 kinase that is important for growth factor induced signaling ycin) (Henderson, Naya et al. 1991; Liu, Albers et al. 1992; Bierer, der et al. 1993). In a further embodiment, the cell 1O compositions of the invention are administered to a patient in conjunction with (e.g., before, simultaneously or following) bone marrow transplantation, T cell ablative therapy using either chemotherapy agents such as, fludarabine, external-beam radiation therapy (XRT), cyclophosphamide, or antibodies such as OKT3 or CAMPATH, In some embodiments, the cell compositions of the invention are administered following B-cell ablative therapy such as agents that react with CD20, e.g., Rituxan. For example, in one embodiment, subjects may undergo standard treatment with high dose herapy followed by peripheral blood stem cell transplantation. In n embodiments, ing the lant, subjects receive an infusion of the expanded immune cells of the invention. In some embodiments, expanded cells are administered before or following surgery.

Kits The invention also provides kits for use in the instant methods. Kits of the invention include one or more containers comprising a polynucleotide encoding a BCMA specific CAR, or an engineered immune cell sing a polynucleotide encoding a BCMA ic CAR as described herein, and instructions for use in accordance with any of the methods of the invention described herein. Generally, these instructions comprise a description of administration of the engineered immune cell for the above described eutic treatments.

The instructions relating to the use of the engineered immune cells as described herein generally include information as to dosage, dosing schedule, and route of administration for the intended treatment. The containers may be unit doses, bulk packages (e.g., multi-dose packages) or sub-unit doses. Instructions supplied in the kits of the invention are lly written instructions on a label or package insert (e.g., a paper sheet included in the kit), but machine-readable instructions (e.g., instructions carried on a magnetic or optical storage disk) are also acceptable.

The kits of this invention are in suitable packaging. Suitable packaging includes, but is not limited to, vials, bottles, jars, flexible packaging (e.g., sealed Mylar or plastic bags), and the like. Also contemplated are packages for use in combination with a specific device, such as an inhaler, nasal administration device (e.g., an atomizer) or an infusion device such as a mp. A kit may have a e access port (for example the container may 1O be an intravenous solution bag or a vial having a stopper able by a hypodermic injection needle). The container may also have a sterile access port (for example the container may be an intravenous solution bag or a vial having a stopper able by a hypodermic injection ). At least one active agent in the composition is a BCMA antibody. The container may further comprise a second ceutically active agent.

Kits may optionally provide additional components such as buffers and interpretive information. Normally, the kit comprises a ner and a label or package insert(s) on or associated with the container.

The following examples are offered for illustrative purposes only, and are not intended to limit the scope of the invention in any way. lndeed, various modifications of the invention in addition to those shown and described herein will become apparent to those skilled in the art from the foregoing description and fall within the scope of the appended claims.

Representative materials of the present invention were deposited in the American Type Culture tion (ATCC) on February 9, 2016. The biological t having ATCC Accession No. PTA-122834 is a vector comprising a polynucleotide encoding a BCMA specific CAR. The deposit was made under the provisions of the st Treaty on the International Recognition of the Deposit of Microorganisms for the Purpose of Patent Procedure and Regulations thereunder (Budapest Treaty). This assures maintenance of a viable culture of the t for 30 years from the date of deposit. The deposit will be made available by ATCC under the terms of the Budapest Treaty, and subject to an agreement between , Inc. and ATCC, which assures permanent and unrestricted availability of the progeny of the culture of the t to the public upon issuance of the pertinent US. patent or upon laying open to the public of any US. or foreign patent application, whichever comes first, and assures bility of the progeny to one determined by the US.

Commissioner of Patents and Trademarks to be entitled thereto ing to 35 U.S.C.

Section 122 and the Commissioner’s rules pursuant thereto (including 37 C.F.R. Section 1.14 with particular nce to 886 OG 638).

The assignee of the present application has agreed that if a culture of the materials on deposit should die or be lost or destroyed when cultivated under suitable conditions, the materials will be promptly replaced on notification with another of the same. bility of 1O the ted material is not to be construed as a license to practice the ion in contravention of the rights granted under the ity of any government in accordance with its patent laws.

Examples Example 1: Determination of kinetics and affinity of BCMA/human lgG interactions at 25°C and/or 37°C This e determines the kinetics and affinity of various anti-BCMA antibodies at °C and 37°C.

All experiments were performed on a Bio-Rad Proteon XPR36 surface Plasmon resonance biosensor (Bio-Rad, Hercules, CA). An array of anti-BCMA antibodies was prepared using an amine-coupling method on a Bio-Rad GLC Sensor Chip similar to that described in Abdiche, et al., Anal. Biochem. 411, 139-151 (2011). The is temperature for the immobilization was 25°C and the running buffer was HBS-T+ (10 mM HEPES, 150 mM NaCl, 0.05% Tween-20, pH 7.4). Channels were activated in the analyte (horizontal) direction by injecting a mixture of 1 mM ECD and 0.25 mM NHS for 3 minutes at a flow rate of 30 uL/min. lgGs were immobilized on the ted spots by ing them in the ligand (vertical) direction at 20 ug/mL in 10 mM Acetate pH 4.5 buffer for 1.5 minutes at 30 ug/mL.

The activated surfaces were blocked by injecting 1M ethanolamine, pH 8.5 in the analyte direction for 3 minutes at 30 uL/min.

The analysis temperature for the BCMA g analysis was 37°C or 25°C in a running buffer of , supplemented with 1 mg/mL BSA. A kinetic ion method was employed for the interaction analysis as described in Abdiche, et al. Human BCMA A) or cynomolgus monkey BCMA (cyBCMA) analyte was injected in the analyte direction using a series of injections from low to high concentration. The concentrations used were 0.08 nM, 0.4 nM, 2 nM, 10 nM and 50 nM (a 5-membered series, with a 5-fold dilution factor and top concentration of 50 nM). The association time for a given analyte dilution was two s. Immediately after the 50 nM BCMA injection, dissociation was monitored for2 hours. Prior to the BCMA analyte injections, buffer was injected 5 times 1O using the same association and dissociation times at the BCMA analyte cycles to prepare a buffer blank sensorgram for double-referencing purposes (double referencing as bed in Myszka, J. Mol. Recognit. 12, 279-284 (1999).

The sensorgrams were double-referenced and fit to a 1:1 Langmuir with mass transport kinetic titration model in BlAevaluation Software n 4.1.1 (GE Lifesciences, Piscataway, NJ). The kinetics and affinity parameters for various anti-BCMA antibodies of the invention are shown in Tables 4A-4C. The antibodies shown in Tables 4A-4C share the same VH and VL s as the CARs shown in Table 1 having the same name.

Table 4A Table 4B ka (1/Ms) huBCMA kd (1/5) huBCMA T ‘/2 (min) to KD (nM) to AntibodV @ 25°C @25°C huBCMA @25°C huBCMA @ 25°C P6E01/P6E01 1-04E+06 4-15E-03 P6E01/H3.AQ 8.35E+05 3.45E-04 33.53 L1.LGF/L3.KW/P6E01 8.31E+05 7.55E-03 L1.LGF/L3.NY/P6E01 1.33E+06 4.40E-03 L1.GDF/L3.NY/p6m 592503 moms L1.LGF/L3.KW/H3.AL 4.28E+05 1.23E-03 L1.LGF/L3.KW/H3.AP 9.28E+05 03 L1.LGF/L3.KW/H3.AQ 5.24E+05 9.56E-04 12.09 WO 66630 ————— T ‘"""’ ‘° @ 37"C @37"C huBCMA @37"C huBCMA @ 37"C ————m ————m 0-53 0-50 L1-AH/H3-AE 0-52 L3-PY/L1-AH/H3-AQ 0-65 L3-PY/L1-AH/H3-TAQ 0-37 L3-PY/L1-FF/H2-QR 0-51 L3-PY/L1-FF/H2-DY 0-65 L3-PY/L1-FF/H2-YQ 0-46 0-51 0-63 0-40 0-51 0.46 0-54 0.64 ———m0-49 0-36 0-52 ————— ‘"""’° @ 25 C @25 C cyBCMA @25 C cyBCMA @ 25 C ————— ————" ————" ————" ————m_ WO 66630 ———m— ————m ————— ————— ‘"""’° @ 37 C @37 C cyBCMA @37 C cyBCMA @ 37 C L3.PY/L1.AH/H3-AE Table 4C Antibody ka(1/Ms) kd(1/s)$ka(1/Ms) kd(1/s) m A02_Rd4_6nM_C16 (P5AC16) 06 1.41E-04 1.34E+06 1.58E-04 118 Human BCMA Cyno BCMA —---"l17 A02_Rd4_0.6nM_C01 (P5AC1) 4.74E+06 9.15E-04 193 2.39E+06 1.57E-03 6 5 —A02_Rd4_6nM_C08 06 7.38E-04 188 2.23E+06 1.13E-02 5072 —P5C1_VHVL (PC1) 1.16E+07 6.92E-02 5986 3.53E+06 5.38E-02 15231 d4_6nM_C24 7.47E+06 3.48E-03 467 06 8.91E-04 281 —C01_Rd4_6nM_C26 1,505+07 03m 4.75E+06 1.99E-03 419 —C01_Rd4_6nM_C02 1.61E+07 1.44E-03n 5.12E+06 2.18E-03 426 —C01_Rd4_6nM_C10 1.31E+07 2.12E-03 162 4.44E+06 2.19E-03 493 —C01_Rd4_0.6nM_C27 1.23E+07 3.74E-03 303 3.34E+06 2.85E-03 852 —C01_Rd4_6nM_C20 6.02E+06 2.76E-03 459 3.6OE+O6 6.25E-03 1737 —C01_Rd4_6nM_C12 1.21E+07 6.49E-03 535 4.51E+06 3.70E-03 820 d4_0.6nM_C16 1,555+07 6.30E-03 407 4.95E+06 4.64E-03 939 —C01_Rd4_0.6nM_CO9 1.51E+07 8.25E-03 545 5.28E+06 9.36E-03 1773 Human BCMA Cyno BCMA dy ka (1/Ms) kd (1/s) ka (1/Ms) kd (1/s) C01_Rd4_6nM_CO9 1.58E+07 1.28E-02 811 06 8.68E-03 2328 C01_Rd4_0.6nM_CO3 1.55E+07 1.505-02 4.72E+06 1.19E-02 2528 C01_Rd4_0.6nM_C06 1.82E+07 1.54E-02 847 6.22E+06 1.21E-02 1948 C01_Rd4_6nM_CO4 2.33E+07 4.97E-02 2134 O6 3.27E-02 5156 COMBO_Rd4_O.6n M_C22 1.97E+06 5 36 1.34E+O6 6.66E-05 O COMBO_Rd4_6n M_C21 1.17E+07 7345-05 3.17E+O6 2.48E-O4 8 COMBO_Rd4_6n M_C10 06 9.725-05 18 1.52E+06 1.6OE-O4 105 Rd4_O.6n M_CO4 1.07E+07 1.58E-04 15 3.52E+06 1.37E-O4 9 Rd4_6n M_C25 7.98E+06 1.13E-04 14 06 2.26E-O4 9 COMBO_Rd4_O.6n M_C21 1.34E+07 04 3.63E+06 3.04E-04 COMBO_Rd4_6n M_C11 6.74E+06 1.24E-04 18 2.64E+06 4.12E-04 1 U1 6 COMBO_Rd4_O.6n M_C20 7.65E+06 1.46E-04 19 3.09E+06 2.84E-04 2 COMBO_Rd4_6n M_CO9 8.85E+06 04 16 2.37E+06 3.18E-04 134 COMBO_Rd4_6n M_C08 8.99E+06 04 19 3.06E+06 4.28E-04 140 COMBO_Rd4_O.6n M_C19 7.86E+06 1.55E-04 20 2.92E+06 9.79E-04 336 COMBO_Rd4_O.6n M_C02 8.57E+06 1.85E-04 22 3.01E+06 4.94E-O4 164 COMBO_Rd4_O.6n M_c23 7.39E+06 2.105-04 28 2.81E+06 5.31E-O4 189 COMBO_Rd4_O.6n M_C29 1.47E+07 2.77E-04 19 4.00E+06 3.36E-04 COMBO_Rd4_O.6n M_CO9 1.04E+07 3.19E-04 31 3.77E+06 3.46E-04 COMBO_Rd4_6n M_C12 (PC1C1Z) 1.38E+O7 2.7OE-O4 20 3.29E+06 4.86E-04 148 COMBO_Rd4_O.6n M_c30 4.35E+06 2.82E-04 65 1.68E+06 8.08E-04 481 COMBO_Rd4_O.6n M_C14 8.66E+06 3.28E-04 38 3.48E+06 6.45 E-O4 185 Rd4_6n M_CO7 1.05E+07 3.71E-04 35 3.94E+06 9.34E-O4 237 COMBO_Rd4_6n M_C02 1.05E+06 4.43E-04 422 7.95E+05 1.36E-O3 1714 COMBO_Rd4_O.6n M_C05 4.32E+06 4.97E-04 115 1.94E+06 1.72 E-O3 886 COMBO_Rd4_O.6n M_C17 8.68E+06 04 92 3.06E+O6 1.01E-O3 330 COMBO_Rd4_6n M_C22 (COMZZ) 3.03E+06 7.75E-04 256 1.7OE+O6 1.65E-O3 972 2016/051808 Human BCMA Cyno BCMA COMBO_Rd4_O.6nM_C11 5.11E+06 1.06E-03 207 06 4.23E-03 1924 Example 2: BCMA ic CAR-T Cells This example demonstrates functional activity of BCMA specific CAR-T cells against BCMA positive (BCMA+) tumor cells.

Among all the BCMA specific CAR molecules generated, eight were selected for r activity tests based on affinity to BCMA, cross-reactivity to human BCMA and cyno BCMA, and epitope. The CAR molecules tested included: P5A, P5AC1, P5AC16, PC1, PC1C12, COM22, P6DY, and P6AP. Three different architectures were designed: version 1 1O (v1) comprises an Fclelld hinge, version 2 (v2) ses a CD8d hinge, and n 3 (v3) comprises and lgG1 hinge. The chimeric antigen receptors (CARs) shown in Table 5 were prepared and used and assessed for their degranulation activity towards BCMA+ cells. Degranulation activity was determined upon transient expression of each CAR in human T cells.

Table 5: Exemplary BCMA specific CARs CAR CAR Amino Acid Sequence MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFSSYAMNWVRQAPGKGLEWVSAISDSGGSTYYADSVK P5A2_VHVL VH (Table GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ 1 SEQ ID NO' 33) , GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL GS linker; SCRASQSVSSSYLAWYQQKPGQAPRLLMYDASI RATGI PDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYGSWPLTFGQGTKVElK P5A2_VHVL VL (SEQ "3 NO: 34); GLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVlTLYCKRGRKKL chRma hinge; LYlFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD CD80L TM domain; APAYQQGQNQLYNELN LG VLDKRRG RDPEMGG KPR 4133's"); RKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGLYQ 2016/051808 -R GLSTATKDTYDALHMQALPPR (SEQ ID NO: 343) cm: ISD P5A-V2 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFSSYAMNWVRQAPGKGLEWVSAISDSGGSTYYADSVK P5A2_VHVL VH; GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ GSImker;_ GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL SCRASQSVSSSYLAWYQQKPGQAPRLLMYDASIRATGIPDRFS P5A2_VHVL VL; GSGSGTDFTLTISRLEPEDFAVYYCQQYGSWPLTFGQGTKVE|K CDga hinge; TTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFAC CDSQ TM domain; DIYIWAPLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPVQT 4133 ISD; CSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQLY NELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNELQ CD3: ISD KDKMAEAYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDALH MQALPPR(SEQ ID NO: 344) MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFSSYAMNWVRQAPGKGLEWVSAISDSGGSTYYADSVK P5A2_VHVL VH ; GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ GS linker; GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL SVSSSYLAWYQQKPGQAPRLLMYDASIRATGIPDRFS P5A2_VHVLVL; GSGSGTDFTLTISRLEPEDFAVYYCQQYGSWPLTFGQGTKVE|K [gm hinge; EPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPEVT CDSQ TM domain; CVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRV "BBISD; VSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREP QVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPEN CD3ZISD NYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEAL HNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD APAYQQGQNQLYNELN LG VLDKRRG RDPEMGG KPR WO 66630 CAR CAR Amino Acid Sequence RKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGLYQ GLSTATKDTYDALHMQALPPR(SEQ ID NO: 345) MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80i signal peptide; ASG FTFSSYAMNWVRQAPGKGLEWVSAI LSSGGSTYYADSVK A02_Rd4_0.6n M_C01 GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ VH (SEQ ID NO' 72), GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL GS linker; SVSSSYLAWYQQKPGQAPRLLMYDASI RATG | PDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYQSWPLTFGQGTKVE|K 4_0-6"M_C01 GLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL VL (SEQ "3 N01 73): LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD chRma hinge; GQNQLYNELNLGRREEYDVLDKRRGRDPEMGGKPR CD801 TM domain;, RKN PQEG LYN ELQKDKMAEAYSEIGMKGERRRG KGHDG LYQ 4lBB ISD; GLSTATKDTYDALHMQALPPR (SEQ ID NO: 346) CD3: ISD MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFSSYAMNWVRQAPGKGLEWVSAI LSSGGSTYYADSVK A02_Rd4_0.6n M_C01 GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL GS linker; SCRGGQSVSSSYLAWYQQKPGQAPRLLMYDASI RATG | PDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYQSWPLTFGQGTKVE|K A02_Rd4_0-6"M_C01 TTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFAC VLI DIYIWAPLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPVQT (:ng hinge; TQEEDGCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQLY CDSOL TM domain;.

NELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNELQ 4lBB ISD' KDKMAEAYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDALH MQALPPR (SEQ ID NO: 347) CD3Z ISD CAR CAR Amino Acid Sequence MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80t signal peptide; ASG FTFSSYAMNWVRQAPGKG LEWVSAI LSSGGSTYYADSVK A02_Rd4_0.6n M_C01 GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGE RATL GS linker; SCRGGQSVSSSYLAWYQQKPGQAPRLLMYDASI RATG | PDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYQSWPLTFGQGTKVEIK A02_Rd4_0-6"M_C01 GSGGGGSCPYSNPSLCSGGGGSCPYSNPSLCSGGGGSTTTPAP VL: mab epitope: RPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFACDIYIWA (:ng hinge; PLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPVQTTQEED CDSOL TM domain;.

GCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQLYNELNLG 4lBB ISD; RREEYDVLDKRRG RDPEMGG KPRRKNPQEG LYN ELQKDKMA GMKGERRRGKGHDGLYQGLSTATKDTYDALHMQALP CD3ZISD PR (SEQ ID NO: 396) MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CDSOL signal peptide; ASG AMNWVRQAPGKGLEWVSAI LSSGGSTYYADSVK A02_Rd4_0.6n M_C01 GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL GS linker; SCRGGQSVSSSYLAWYQQKPGQAPRLLMYDASI RATG | PDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYQSWPLTFGQGTKVE|K A02_Rd4_0-6"M_C01 EPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPEVT VL: CVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRV nge; VSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREP CD801 TM domain;, QVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPEN 4lBB|SD' NYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEAL HNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL CD3ZISD PFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD APAYQQGQNQLYNELN LG RREEYDVLDKRRG RDPEMGG KPR CAR CAR Amino Acid ce RKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGLYQ GLSTATKDTYDALHMQALPPR (SEQ ID NO: 348) P5AC16- MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80i signal peptide; V1 ASGFTFSSYAMNWVRQAPGKGLEWVSAISdFGGSTYYADSVK A02_Rd4_6nM_C16 VH GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ (SEQ ID NO' 39), GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL GS linker; SCRASQSVSD|YLAWYQQKPGQAPRLLMYDASIRATGI PDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYQTWPLTFGQGTKVE|K A02_Rd4_6"M_C16VL GLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL (SEQ "3 ; LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD chRma hinge; APAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGKPR CD801 TM domain;, RKN PQEG LYN MAEAYSEIGMKGERRRG KGHDG LYQ 4lBB ISD; GLSTATKDTYDALHMQALPPR (SEQ ID NO: 349) c033: ISD; P5AC16- MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80i signal peptide; V2 ASG FTFSSYAM NWVRQAPGKG LEWVSAI SdFGGSTYYADSVK A02_Rd4_6n M_C16 GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL GS linker; SCRASQSVSD|YLAWYQQKPGQAPRLLMYDASIRATGI PDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYQTWPLTFGQGTKVE|K A02_Rd4_6"M_C16VLi TTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFAC CDga hinge; DIYIWAPLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPVQT CD80L TM domain; TQEEDGCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQLY 4lBB ISD; NELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNELQ AYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDALH CD3ZISD MQALPPR (SEQ ID NO: 350) CAR CAR Amino Acid Sequence - MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CDSOL signal peptide; V3 ASG FTFSSYAM NWVRQAPGKG LEWVSAI SdFGGSTYYADSVK A02_Rd4_6n M_C16 GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDIWGQ GTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERATL GS ; SCRASQSVSDIYLAWYQQKPGQAPRLLMYDASIRATGIPDRFS GSGSGTDFTLTISRLEPEDFAVYYCQQYQTWPLTFGQGTKVE|K A02_Rd4_6"M_C16VLi EPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPEVT [gm hinge; CVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRV CDSOi TM ; VSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREP 4lBBISD; QVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPEN NYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEAL CD3Z|SD HNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD APAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGKPR RKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGLYQ GLSTATKDTYDALHMQALPPR (SEQ ID NO: 351) MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASGFTFSSYPMSWVRQAPGKGLEWVSAIGGSGGSTYYADSVK P5C1_VHVL VH (SEQ ID GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDSWG NO' 76)‘ QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA GS linker; TLSCRASQSVSSTYLAWYQQKPGQAPRLLIYDASSRAPGIPDRF SGSGSGTDFTLTISRLEPEDFAVYYCQQYSTSPLTFGQGTKVE|K P5C1_VHVL VL (SEQ "3 GLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL ; LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD chRma hinge; APAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGKPR CDSOi TM domain;_ RKN PQEG LYN ELQKDKMAEAYSEIGMKGERRRG KGHDG LYQ 41BB ISD; GLSTATKDTYDALHMQALPPR (SEQ ID NO: 352) WO 66630 PC1-V2 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASGFTFSSYPMSWVRQAPGKGLEWVSAIGGSGGSTYYADSVK HVLVH; GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDSWG GS hnker;_ QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA TLSCRASQSVSSTYLAWYQQKPGQAPRLLIYDASSRAPG|PDRF P5C1_VHVL VL; SGSGSGTDFTLTISRLEPEDFAVYYCQQYSTSPLTFGQGTKVE|K CDga hinge; TTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFAC CDSQ TM domain; PLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPVQT 4133 ISD; TQEEDGCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQLY NELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNELQ CD3: ISD KDKMAEAYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDALH MQALPPR (SEQ ID NO: 353) MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFSSYPMSWVRQAPGKGLEWVSAIGGSGGSTYYADSVK HVL VH; GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDSWG GS linker; QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA TLSCRASQSVSSTYLAWYQQKPGQAPRLLIYDASSRAPG|PDRF P5C1_VHVLVLi SGSGSGTDFTLTISRLEPEDFAVYYCQQYSTSPLTFGQGTKVE|K [gm hinge; EPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPEVT CDSQ TM domain; CVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRV "BBISD; VSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREP QVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPEN CD3ZISD NYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEAL HNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD APAYQQGQNQLYNELN LG RREEYDVLDKRRG RDPEMGG KPR CAR CAR Amino Acid Sequence RKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGLYQ GLSTATKDTYDALHMQALPPR (SEQ ID NO: 354) PC1C12- MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80i signal peptide; V1 ASGFTFSSYPMSWVRQAPGKGLEWVSAIGgSGGWSYYADSVK C01_Rd4_6nM_C12 VH RDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDSWG (SEQ ID NO: 83); QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA GS linker; TLSCWLSQSVSSTYLAWYQQKPGQAPRLLIYDASSRAPG|PDRF SGSGSGTDFTLTISRLEPEDFAVYYCQQYSEWPLTFGQGTKVEIK C01_Rd4_6"M_C12VL GLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL (SEQ "3 N01 84): LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD chRma hinge; APAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGKPR CD801 TM domain;, RKN PQEG LYN ELQKDKMAEAYSEIGMKGERRRG KGHDG LYQ 4lBB ISD; GLSTATKDTYDALHMQALPPR (SEQ ID NO: 355) CD3: ISD - MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80isigna| peptide; V2 ASG PMSWVRQAPG KG LEWVSAIGgSGGWSYYADSVK C01_Rd4_6n M_C12 G RFTISRDNSKNTLYLQM DTAVYYCARYWPMDSWG QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA GS linker; TLSCWLSQSVSSTYLAWYQQKPGQAPRLLIYDASSRAPG|PDRF SGSGSGTDFTLTISRLEPEDFAVYYCQQYSEWPLTFGQGTKVEIK C01_Rd4_6"M_C12VLi TTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFAC CD80; hinge; DIYIWAPLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPVQT CDSOL TM domain;, TQEEDGCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQLY 4lBB|SD' NELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNELQ KDKMAEAYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDALH CDBZISD MQALPPR (SEQ ID NO: 356) CAR CAR Amino Acid Sequence PC1C12- MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CDSOtsignal peptide; V3 ASG FTFSSYPMSWVRQAPG KG LEWVSAIGgSGGWSYYADSVK C01_Rd4_6n M_C12 GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARYWPMDSWG QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA GS linker; TLSCWLSQSVSSTYLAWYQQKPGQAPRLLIYDASSRAPG|PDRF SGSGSGTDFTLTISRLEPEDFAVYYCQQYSEWPLTFGQGTKVEIK C01_Rd4_6"M_C12VLi EPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPEVT [gm hinge; CVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRV CDSOi TM domain;_ LHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREP 4lBBISD; QVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPEN NYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEAL CD3Z|SD HNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGRKKL LYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRSAD APAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGKPR RKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGLYQ GLSTATKDTYDALHMQALPPR (SEQ ID NO: 357) MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFSSYAMNWVRQAPG KG LEWVSAISdSGGSRWYADSV COMBO_Rd4_O.6nM_C SRDNSKNTLYLQMNSLRAEDTAVYYCTRYWPMDIWG 22 VH (SEQ ID NO: 92); QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA GS linker; TLSCRASVRVSSTYLAWYQQKPGQAPRLLMYDASI RATG | PDRF SGSGSGTDFTLTISRLEPEDFAVYYCQQYMKWPLTFGQGTKVEI C0MBO_Rd4_0-6"M_C 22 VL (SEQ "3 N03 93); KGLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVITLYCKRGRK KQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRS chRma hinge; ADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGK CDSOi TM domain; QEGLYNELQKDKMAEAYSEIGMKGERRRG KGHDGLY 41BB ISD; QGLSTATKDTYDALHMQALPPR (SEQ ID NO: 358) COMZZ- MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80tsigna| peptide; V2 ASG FTFSSYAMNWVRQAPGKGLEWVSAISdSGGSRWYADSV COMBO_Rd4_O.6nM_C KG DNSKNTLYLQM NSLRAEDTAVYYCTRYWPM DIWG 22 VH' QGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA GS linker; TLSCRASVRVSSTYLAWYQQKPGQAPRLLMYDASI RATG | PDRF SGSGSGTDFTLTISRLEPEDFAVYYCQQYMKWPLTFGQGTKVEI C0MBO_Rd4_0-6"M_C 22 VL} KTTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFA CDIYIWAPLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPV CD80! hinge; QTTQEEDGCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQ CD80L TM domain;.

LYNELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNE 4lBB|SD' LQKDKMAEAYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDA LHMQALPPR (SEQ ID NO: 359) CD3: ISD ALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG AMNWVRQAPGKGLEWVSAISdSGGSRWYADSV COMBO_Rd4_O.6nM_C KG RFTISRDNSKNTLYLQM NSLRAEDTAVYYCTRYWPM DIWG 22 VH' VSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPGERA GSImker;_ TLSCRASVRVSSTYLAWYQQKPGQAPRLLMYDASIRATGIPDRF SGSGSGTDFTLTISRLEPEDFAVYYCQQYMKWPLTFGQGTKVEI COMBO_Rd4_0-6n 'VLC 22 VL; KEPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPEV TCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYR [gm hinge; VVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPRE CDSOt TM domain; PQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPE 4lBB ISD; NNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQG NVFSCSVM H E ALHNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGRK CD3ZISD KLLYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRS ADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGK CAR CAR Amino Acid Sequence PRRKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDG LY QGLSTATKDTYDALHMQALPPR (SEQ ID NO: 360) 1 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80i signal peptide; ASG FTFGSYAMTWVRQAPGKGLEWVSAIDYSGGNTFYADSVK L3.PY/H2.DY VH (SEQ GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARVSPIASGMDY ID NO: 25); WGQGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPG GS linker; ERATLSCRASQSVSSSYPSWYQQKPGQAPRLLIYGASSRATGIP DRFSGSGSGTDFTLTISRLEPEDFAVYYCQHYPYPPSFTFGQGTK L3.PY/L1.PS/P6E01 VEIKGLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVITLYCKRG VL (SEQ ID NO: 18); RKKLLYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFS FcyRIIIa hinge; RSADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMG CDSOI TM domain; GKPRRKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHD GLYQGLSTATKDTYDALHMQ (SEQ ID NO: 361) 4lBB ISD; CD3: ISD P6DY-V2 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFGSYAMTWVRQAPG KG LEWVSAI DYSGG NTFYADSVK L3.PY/H2.DY VH; GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARVSPIASGMDY GS ; VTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPG ERATLSCRASQSVSSSYPSWYQQKPGQAPRLLIYGASSRATGIP L3.PY/L1.PS/P6E01 DRFSGSGSGTDFTLTISRLEPEDFAVYYCQHYPYPPSFTFGQGTK VL; VEIKTTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRG LD CDSOI hinge; FACDIYIWAPLAGTCGVLLLSLVITLYCKRG IFKQPFM RP CDSOI TM domain; VQTTQEEDGCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQN QLYNELN LG RREEYDVLDKRRG RDPEMGG KPRRKNPQEG LYN 4lBB ISD; ELQKDKMAEAYSEIGMKGERRRGKGHDG LYQG LSTATKDTYD CD3: ISD ALHMQALPPR (SEQ ID NO: 362) WO 66630 CAR CAR Amino Acid Sequence P6DY-V3 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CDSOL signal peptide; ASG FTFGSYAMTWVRQAPG KG LEWVSAIDYSGGNTFYADSVK L3.PY/H2.DY VH; GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARVSPIASGMDY GS linker; WGQGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPG ERATLSCRASQSVSSSYPSWYQQKPGQAPRLLIYGASSRATG|P L3-PY/L1-P5/P6501 DRFSGSGSGTDFTLTISRLEPEDFAVYYCQHYPYPPSFTFGQGTK VL; VEIKEPKSPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTP IgGl _ EVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNST CD80L TM domain; YRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQP REPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQP 4lBBISD; ENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMH CDBZISD EALHNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGR KKLLYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSR SADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGG KPRRKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDGL YQGLSTATKDTYDALHMQALPPR (SEQ ID NO: 363) P6AP-V1 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80t signal peptide; ASGFTFGSYAMTWVRQAPGKGLEWVSAISGSGGNTFYADSVK P6AP-V1 VH (SEQ ID GRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARVSPIAAPM DY NO' 8)‘ WGQGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPG GS linker; CRASQLGSFYLAWYQQKPGQAPRLLIYGASSRATG|PD P5AP'V1 VL (SEQ "3 RFSGSGSGTDFTLTISRLEPEDFAVYYCQHYNYPPSFTFGQGTKV MGLAVSTISSFFPPGYQIYIWAPLAGTCGVLLLSLVITLYCKRGR N0180) KKLLYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSR chRma hinge; SADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGG CDSOt TM domain;_ KPRRKNPQEG KDKMAEAYSEIGMKGERRRG KGHDGL 41BB ISD; YQGLSTATKDTYDALHMQA (SEQ ID NO: 364) P6AP-V2 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFGSYAMTWVRQAPGKGLEWVSAISGSGG NTFYADSVK L1.LG F/L3.KW/H3.AP GRFTISRDNSKNTLYLQM DTAVYYCARVSPIAAPM DY WGQGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPG GS linker; ERATLSCRASQLGSFYLAWYQQKPGQAPRLLIYGASSRATG|PD RFSGSGSGTDFTLTISRLEPEDFAVYYCQHYNYPPSFTFGQGTKV P6AP'V1VL; ElKTTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDF cpga hinge; ACDIYIWAPLAGTCGVLLLSLVITLYCKRGRKKLLYIFKQPFMRPV CD801 TM domain;.

QTTQEEDGCSCRFPEEEEGGCELRVKFSRSADAPAYQQGQNQ 4lBB ISD; LYNELNLGRREEYDVLDKRRGRDPEMGGKPRRKNPQEGLYNE LQKDKMAEAYSEIGMKGERRRGKGHDGLYQGLSTATKDTYDA CD3ZISD LHMQALPPR (SEQ ID NO: 365) P6AP-V3 MALPVTALLLPLALLLHAARPEVQLLESGGGLVQPGGSLRLSCA CD80L signal peptide; ASG FTFGSYAMTWVRQAPGKGLEWVSAISGSGG NTFYADSVK L1.LG F/L3.KW/H3.AP RDNSKNTLYLQMNSLRAEDTAVYYCARVSPIAAPM DY WGQGTLVTVSSGGGGSGGGGSGGGGSEIVLTQSPGTLSLSPG GSImker;_ ERATLSCRASQLGSFYLAWYQQKPGQAPRLLIYGASSRATGIPD RFSGSGSGTDFTLTISRLEPEDFAVYYCQHYNYPPSFTFGQGTKV PGAP'Vl VL: SPDKTHTCPPCPAPPVAGPSVFLFPPKPKDTLMIARTPE IgG1 hinge; VTCVVVDVSHEDPEVKFNWYVDGVEVH NAKTKPREEQYNSTY CDSQ TM domain; RVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPR EPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPE NNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHE CD3ZISD ALHNHYTQKSLSLSPGKIYIWAPLAGTCGVLLLSLVITLYCKRGRK KLLYIFKQPFMRPVQTTQEEDGCSCRFPEEEEGGCELRVKFSRS ADAPAYQQGQNQLYNELNLGRREEYDVLDKRRGRDPEMGGK WO 66630 2016/051808 CAR CAR Amino Acid Sequence PRRKNPQEGLYNELQKDKMAEAYSEIGMKGERRRGKGHDG LY TKDTYDALHMQALPPR (SEQ ID NO: 366) For the activity assays, T cells from thirteen y donors (Donors 1-13) were obtained. Briefly, the T cells were purified from buffy-coat samples and activated using CD3/CD28 beads. Cells were transiently transfected with mRNAs ng the different CAR molecules at D11/12 after activation. CAR ty was ed by measuring their degranulation capacity, the inteferon-v (lFNv) e, and the cytotoxic activity when co- cultured with (a) cells expressing BCMA (MM18, KMSlZBM, and L363), or (b) cells that do not express the BCMA protein (K562). Also included for each assay were mock transfected T cells (T cells in in buffer) to determine baseline activity of T cells that do not 1O express a CAR.

CAR detection was done using a fusion protein in which the extracellular domain of the human BCMA protein was fused to a mouse lgGl derived Fc fragment. Binding of the CAR at the cell surface with the BCMA portion of the fusion protein was detected with anti- Fc PE-conjugated antibody and analyzed by flow cytometry.

Materials and Methods Primary T cell cultures T cells were purified from Buffy coat samples provided by EFS (Etablissement Francais du Sang, Paris, France) using Ficoll gradient density medium (Ficoll Paque PLUS / GE care Life Sciences). The PBMC layer was recovered and T cells were purified using a commercially available T cell enrichment kit (Stem Cell Technologies). Purified T cells were activated in TM-15 medium (Lonza) supplemented with 20ng/mL Human lL-2 (Miltenyi Biotech), 5% Human Serum (Sera Laboratories), and Dynabeads Human T activator CD3/CD28 at a bead:cell ratio 1:1 (Life Technologies). After activation cells were grown and maintained in X-VivoTM-15 medium (Lonza) supplemented with 20ng/mL Human lL-2 (Miltenyi Biotec) and 5% Human Serum (Sera Laboratories) CAR mRNA transfection Transfections were done at Day 4/5 or Day 11/12 after T cell cation and activation. 5 millions of cells were transfected with 15ug of mRNA encoding the different CAR constructs. CAR mRNAs were produced using the mMESSAGE mMACHlNE T7 Kit (Life Technologies) and purified using RNeasy Mini Spin Columns (Qiagen). Transfections were done using PulseAgileTM Cytopulse technology, by applying two 0.1 m8 pulses at 3000V/cm followed by four 0.2 m8 pulses at 325V/cm in 0.4cm gap cuvettes in a final volume of 200u| of "Cytoporation buffer T" (BTX d Apparatus). Cells were immediately diluted in X-VivoTM-15 media (Lonza) and incubated at 37°C with 5% C02. lL-2 1O (from Miltenyi Biotec was added 2h after electroporation at 20ng/mL.

Degranulation assay (CD107a zation) T cells were incubated in 96-well plates (50,000 cells/well), together with an equal amount of cells expressing or not the BCMA protein. Co-cultures were maintained in a final volume of 100ul of X-VivoTM-15 medium (Lonza) for 6 hours at 37°C with 5% C02. CD107a staining was done during cell stimulation, by the addition of a fluorescent anti-CD107a antibody (APC conjugated, from Miltenyi Biotec) at the beginning of the co-culture, together with 1ug/ml of anti-CD49d (BD Pharmingen), 1ug/ml of anti-CD28 (Miltenyi Biotec), and 1x Monensin solution (eBioscience). After the 6h incubation period, cells were d with a fixable viability dye (eFluor 780, from eBioscience) and fluorochrome-conjugated anti-CD8 (PE ated Miltenyi Biotec) and analyzed by flow cytometry. The degranulation activity was determined as the % of CD8+/CD107a+ cells, and by determining the mean fluorescence intensity signal (MFI) for CD107a staining among CD8+ cells. ulation assays were carried out 24h after mRNA transfection. Results are summarized in the Tables 6A-9H and 9A-9C below. In the tables, the second column (labeled "CAR-T cell") indicates the BCMA ic CAR being expressed in the transfected T cells.

CD107a expression on cells is a marker of antigen specific activation. The percent and MFI of CD107a on CD8 T cells expressing BCMA specific CARs increase when incubated with BCMA high (H929), medium (MM1S) and low BM, L363) sing cells but not BCMA negative cells (K562 and Daudi) (Tables 6A-9H and 9A-9C). CD107a expression levels did not increase on mock transfected T cells contacted with BCMA. Thus, the BCMA ic CAR-T cells are activated in the presence of xpressing cells but not in the presence of cells that do not express BCMA.

These results demonstrate that T cells expressing BCMA specific CARs are activated when ted with BCMA expressing cells, and that the tion is antigen- specific.

IFN y release assay T cells were incubated in 96-well plates (50,000 cells/well), together with (a) cells expressing BCMA (MM1S, KMS1ZBM, and L363) or (b) cells that do not s the BCMA 1O protein (K562). Co-cultures were maintained in a final volume of 100ul of TM-15 medium (Lonza) for 24 hours at 37°C with 5% C02. After this incubation period the plates were centrifuged at 1500 rpm for 5 minutes and the supernatants were recovered in a new plate. lFNy detection in the cell culture supernatants was done by ELISA assay (Human lFNv Quantikine ELISA Kit, from R&D Systems). The lFNy release assays were carried by starting the cell co-cultures 24h after mRNA transfection. s are summarized in the Tables 8A-8D and 10 below.

As shown in Tables 8A-8D and 10, CD8 T cells expressing BCMA specific CARs produce lFNy when incubated with either medium BCMA-expressing cells (MM1S) or low xpressing cells BM, L363). In contrast, CD8 T cells expressing BCMA specific CARs produce negligible lFNy when incubated with BCMA negative cells (K562).

These results demonstrate that T cells expressing BCMA specific CARs are activated when incubated with BCMA expressing cells, and that the activation is antigen- specific.

- Cflotoxicity assay T cells were incubated in 96-well plates (100,000 cells/well), together with 10,000 target cells (expressing BCMA) and 10,000 control (BCMAneg) cells in the same well. Target and control cells were labelled with fluorescent intracellular dyes (CFSE or Cell Trace , from Life Technologies) before co-culturing them with CAR+ T cells. The co-cultures were incubated for 4 hours at 37°C with 5% C02. After this incubation period, cells were labelled with a fixable viability dye (eFluor 780, from eBioscience) and analyzed by flow cytometry.

Viability of each cellular tion t cells or g control cells) was determined and the % of specific cell lysis was calculated. Cytotoxicity assays were d out 48h after mRNA transfection. Results are summarized in the Tables 7A-7H below. In the tables, the cytotoxicity data are shown as percent viable cells, then calculated as a ratio of live BCMA positive cells/live BCMA negative cells. Cell lysis is ated as 100 — mock transfected T cells.

As shown in Tables 7A-7H, T cells expressing BCMA specific CARs exhibit killing activity when incubated with either medium BCMA-expressing cells (MM18) or low BCMA- expressing cells (L363). In contrast, CD8 T cells expressing BCMA specific CARs do not 1O exhibit killing activity when incubated with BCMA negative cells (K562).

In summary, T cells expressing the selected BCMA ic CARs shown in Table 5 are selectively activated upon contact with BCMA-expressing cells. While all versions of the BCMA specific CARs ted BCMA-specific activiation, BCMA specific CARs comprising a CD8d hinge (v2) exhibited increased activation levels compared to BCMA specific CARs comprising a chRllld (v1) hinge or lgG1 (v3) hinge.

Table 6A: Degranulation Assay Results, Donor 1 MFI CD107a+ CD107a+ (in CD8+) "12:5,, K562 829 9.76 Tcells 756 6.86 P6DY PMA/lono 4103 75.5 MM1$ 3872 75.4 K562 1130 20.7 Tcells 707 7.71 PMA/lono 4336 78.7 MM1$ 3665 72.6 ---—— P6AP v2 Table 6B: Degranulation Assay Results, Donor2 MFI CD107a+ CD107a+ (in CD8+) de T cells PMA/Iono 6034 96.3 MM1$ 2670 77.6 K562 648 16.6 T cells 428 7.14 PMA/Iono 4420 90.7 MM1$ 5019 91.8 K562 620 13.8 T cells 451 8.87 PMA/Iono 4835 93.2 MM1$ 4191 88.5 K562 607 14.1 Tcells 315 4.12 PMA/lono 3567 85.8 MM1$ 2193 68.6 K562 537 10.1 ——m- Table 6C: Degranulation Assay Results, Donor 3 MFI + CD107a+ (H1CD8+) mOCk PMA/lono 7111 tranSfeCtedT cells ___ MMlS 464 9.44 Donor K562 2__— T cells 463 6.84 PMA/Iono 7092 98.1 MM1$ 2857 87.2 K562 665 H U'l T cells 373 3.35 PMA/Iono 6214 97.2 MM1$ 1960 68.2 K562 513 7.61 T cells 579 11.5 PMA/Iono 6341 97.5 PC1C12 MM1$ 4478 95.1 K562 680 H U'l T cells 533 10.1 PMA/Iono 5785 97.4 MM1$ 3739 91 K562 648 13.2 T cells 354 2.74 PMA/Iono 5894 96.7 MMlS 2219 76.1 K562 445 5.62 T cells 401 6.52 no 5802 94.6 COM22 MMlS 2372 79.2 K562 5w4 T cells 501 10.4 6387 Table 6D: Degranulation Assay Results, Donor 4 MFI CD107a+ CD107a+ (in CD8+) mOCk PMA/Iono 5750 transfected he".

K562 P5AC16 Table 6E: ulation Assay Results, Donor 5 CD107a+ (in CD8+) (V3 BCMA-P5A MMlS 65.3 1713 only) K562 3.65 247 Tcells 1.71 199 PMA/iono 98.6 4797 L363 50.6 1117 65.5 1753 BCMA- K562 5.29 265 P5AC1 T cells 1.93 213 PMA/iono 99.1 5755 L363 57.2 1392 CAR- lVllVllS 73.9 2520 BCMA- K562 4.13 273 P5A016 T cells 2.57 232 PMA/iono 98.1 5120 L363 71.9 2167 MM1$ 82.9 2987 __K562 3 H 6 T cells 2.47 273 PMA/iono 98.5 5556 L363 57.8 1492 MMlS 71.5 2094 CAR_ BCMA- K562 3.72 313 PC1C12 T cells 2.53 272 no 98.2 4480 L363 61.3 1574 MM1$ 78.1 2602 K562 5.84 296 T cells 5.26 284 PMA/iono 98.3 4434 L363 43.4 859 MM1$ 63.6 1624 K562 3.99 256 T cells 1.95 228 PMA/iono 98.1 4075 L363 63.4 1745 MM1$ 77.8 2461 K562 4.81 310 T cells 4.74 300 PMA/iono 98.9 32 2016/051808 Table 6F: Degranulation Assay Results, Donor6 MFI CD107a+ CD107a+ (in CD8+) T cells PMA IONO 5253 87.4 Teensxsez TcellsMMlS 1321 T cells PMA IONO 4701 83.2 Tcells alone 166 Tcells PMA IONO 4518 CAR_BCMA_P5AC1_V3 T cells K562 301 T cells MM1$ 1101 T cells L363 728 Tcells alone 217 Tcells PMA IONO 4711 CAR_BCMA_PC1_V3 Tcells K562 329 Tcells MM1$ 2083 Tcells L363 1500 Tcells alone 209 Tcells PMA IONO 5401 CAR_BCMA_PC1C12_V2 Tcells K562 332 N\l Tcells MM1$ 2588 Tcells L363 1976 Tcells alone T cells PMA IONO 5299 85.3 CAR-BCMA-P01C12-V3 T cells PMA IONO 4750 82.7 T cells PMA IONO 5521 87.4 CAR-BCMA-P6AP-V2 T cells PMA IONO 4480 82.7 CAR-BCMA-PsAP-W Tcells K562 TcellsMMlS 1409 T cells PMA IONO 3955 78.6 mock transfected T cells T cells K562 TceIIs MMlS Table EEG: ulation Assay Results, Donor 7 MFI CD107a+ CD107a+ (in CD8+) Tcells alone T cells PMA mock trans ectef d T IONO 3097 94_6 ce || 5 TcellsMMlS Tcells L363 -———TcellsDaudi Tcells alone T cells PMA IONO 2864 94.9 T cells PMA IONO 2859 95.6 P5AC1_v2 T cells 'VWIlS 2305 T cells L363 T cells K562 Tcells Daudi Tcells alone 70.8 1.04 T cells PMA IONO 2740 94.6 P5AC1_V3 T cells MM1$ 526 43.3 T cells L363 09 20.4 T cells K562 118 8.32 T cells Daudi 450 35.9 Tcells alone 6 H 1.37 T cells PMA IONO 2786 94.6 T cells MM1$ 1027 56.3 T cells L363 314 29.9 T cells K562 140 12.1 T cells Daudi 536 39.6 Tcells alone 5.95 T cells PMA IONO 3493 95.3 _V2 T cells MM1$ 1917 73.7 T cells L363 939 56.2 T cells K562 192 11.5 T cells Daudi 1485 64.6 Tcells alone 84.2 2.28 PC1C12_V3 T cells PMA IONO 3017 95.2 2016/051808 T cells MM1$ 342 T cells L363 145 T cells K562 186 T cells Daudi 223 Tcells alone 93.6 T cells PMA IONO 2989 COM22_V3 T cells MM1$ 540 4;O T cells L363 154 T cells K562 138 T cells Daudi 93.5 Tcells alone 164 T cells PMA IONO 3303 P6AP_V2 T cells MM1$ 2755 (D T cells L363 859 T cells K562 287 T cells Daudi 1263 Tcells alone 114 T cells PMA IONO 3084 P6AP_V3 T cells MM1$ 849 T cells L363 380 T cells K562 211 T cells Daudi 678 Table 6H: Degranulation Assay Results, Donor 8 MFI CD107a+ CD107a+ (in CD8+) Tcells alone "EMA -- mock transfectedT lONO 3777 66.2 cells Tcells MMlS BCMA_BC3O_V3 T cells PMA (18) IONO 4302 70 6 T cells MMlS T cells L363 T cells K562 N Tcells alone T cells PMA IONO 4298 P5AC1_V2 T cells MM1$ 1648 T cells L363 1099 T cells K562 232 Tcells alone 187 T cells PMA IONO 3989 P5AC1_V3 T cells MM1$ 766 T cells L363 521 T cells K562 258 Tcells alone 242 T cells PMA IONO 4256 T cells MM1$ 1046 T cells L363 1183 T cells K562 283 Tcells alone 257 T cells PMA IONO 3487 PC1C12_V2 T cells MM1$ 2463 T cells L363 1657 T cells K562 314 Tcells alone 166 T cells PMA IONO 4238 T cells MM1$ 641 T cells L363 507 T cells K562 296 Tcells alone 283 T cells PMA IONO 4800 comzzy3 T cells MM1$ 1035 T cells L363 704 T cells K562 334 Tcells alone 545 P6AP_V2 T cells PMA IONO 4362 T cells PMA IONO 3584 61.5 P6AP—V3 T cells lVllVl1s 1553 T cells L363 1045 Tcells K562 Table 7A: Cytotoxicity Data, Donor6 _—CAR _mlmum Donor mock ected T cells 90.90 88.20 91.77 86.30 Table 7B: Cytotoxicity Data, Donor6 Ratio to Mock BCMA+/BCMA- transfected T cells Cell lysis CAR L363 L363 L363 Donor BC3O_V3 25.51 18.43 0.24752108 0.17333946 75.2 82.7 P5AC1_v2 30.27 23.81 4647 0.22389502 70.6 77.6 P5AC1 v3 40.35 22.37 0.39152336 0.21040098 60.8 79.0 PC1 V3 21.57 15.50 0.2093085 0.14581122 79.1 85.4 PC1C12 v2 22.76 17.32 0.22079514 0.1629089 77.9 83.7 PC1C12 v3 62.13 46.62 0.60281513 0.4383953 39.7 56.2 COM22 v3 46.49 29.07 0.45113441 0.27335977 54.9 72.7 P6AP v2 36.63 25.66 0.35539949 177 P6AP v3 56.96 31.45 0.55272006 029573955 mock transfected T cells 103.06 106.33 1 Table 7C: Cytotoxicity Data, Donor 7 Viability (mean) CAR L363 mmm mock transfected T 92 53 92.80 cells 90 70 92 33 Donor Table 7D: Cytotoxicity Data, Donor 7 Ratio to Mock BCMA+/BCMA— transfected T cells Cell lysis CAR mum-mum mock ected T cells 99.71 98.23 1 1 BC3O v3 50.88 37.85 0.51031598 0.38529434 P5AC1 v2 55.66 39.34 0.55818001 0.40044688_m 24-4 39.6 Donor 36.1 61.6 7 P6AP V3 72.45 49.31 0.7266149 0.50196463 27.3 49.8 Table 7E: Cytotoxicity Data, Donor 8 Viability (mean) CAR L363 mmm mock transfected T cells 93.97 91.13 95.97 88.07 BC30_V3 6797 P5A01 v2 69.80 85.37 47.13 79.17 P5A01 v3 77.90 88.77 62.70 84.40 Donor 8 P01 v3 61.67 86.60 41.67 78.97 P01012 v2 62.43 85.27 35.27 78.20 P01012 v3 85.17 85.27 78.87 77.77 COM22_V3 76.70 87.87 56.40 84.50 P6AP v2 77.23 84.90 61.47 83.47 P6AP v3 83.23 85.67 72.57 84.63 cell lines 95.20 94.97 96.97 94.20 Table 7F: Cytotoxicity Data, Donor 8 Ratio to Mock BCMA+/BCMA- transfected T cells Cell lysis L363 "MIME mock transfected T cells 0.95 "n BC3O V3 0-59 P5AC1 V2 079299515 P5AC1 V3 0.74 085112036 PC1 V3 0.53 0.69061501 0.5556331 PC1C12_V2 0.45 0.7101346 0.47489852 PC1C12 V3 1.01 1004 1.06793091 3 1 COM22 V3 0.67 0.84659295 0.70285469 15.3 29.7 P6AP V2 0.74 6799 0.77547847 11.8 22.5 P6AP V3 0.86 0.94229927 0.9028984 5.8 9.7 cell lines 1.03 0.97223038 6365 2.8 -8.4 Table 76: Cytotoxicity Data, Donor 9 Viability (mean) mock transfected T cells 86.3 87.8 86.5 Table 7H: Cytotoxicity Data, Donor 9 Ratio to Mock BCMA+/BCMA- transfected T cells Cell | sis CAR L363 m L363 m L363 m mock transfected T cells 0.98216319 0.80469954 1 1 COM22v3 0.55159475 0.40746382 0.56161212 P6AP v2 0.48289269 0.27092424 6238 7751 50.83 66.33 0.66903915 0.53199052 0.68118939 0.66110454 31.88 33.89 Donor P6AP v3 9 Cell lines 0909 0.90889292 1.02519531 1.1294811 -2.52 -12.95 Table 8A: IFNy Production (pg/mL), Donor 6 CAR pg/ml mock transfected T cells 0 _155.1 BCMA_BC30_V3 2 (1 8) 2 654.71 P5AC1_v2 U 174.035 P5AC1 v3 —61.215 PC1 V3 255.045 PC1C12 V2 481.595 PC1C12 V3 463.08 COM22 V3 2996.305 P6AP V2 1294.055 P6AP v3 - 500.435 mock transfected T 81654.2 BCMA_BC30_V3 49368.7 P5AC1 v2 IONO 49102.7 P5AC1 v3 66837.7 PC1 v3 PMA 70798.2 PC1C12 v2 56402.2 PC1C12 v3 Tcells 1219547 COM22 v3 1258787 P6AP_V2 73577.2 P6AP_V3 51242.7 mock ected T -83.215 BCMA_BC30_V3 265.565 P5AC1_v2 -10.05 P5AC1_V3 K562 36.475 PC1 v3 -74.04 PC1C12 v2 Tcells 344.72 PC1C12 v3 583.99 COM22 v3 610.97 P6AP v2 40.66 P6AP v3 36.775 mock transfected T 660.33 C30_V3 8004.42 P5AC1 V2 MMlS 5667.72 P5AC1 V3 2619.735 PC1 V3 Tcells 6152.67 PC1C12 V2 8526.27 PC1C12 V3 1405.945 COM22 V3 3330.27 P6AP V2 5436.27 P6AP v3 3881.115 mock transfected T cells 1287.38 BCMA_BC30_V3 6363.72 P5AC1 V2 25 P5AC1 V3 m 2720.52 PC1 V3 2 6661.97 PC1C12 V2 9478.72 PC1C12 V3 1707.885 COM22 V3 2397.83 P6AP V2 5911.97 P6AP V3 3470.38 Table 8B: IFNy tion (pg/mL), Donor 7 CAR I pg/ml mock transfected T do 54 cells BCMA_BC30_V3 64.1 (1 8) P5AC1_v2 -18.0 P5AC1_V3 alone -73.0 PC1_v3 F" H PC1C12 v2 Tcells 156.5 PC1C12 v3 100.1 COM22 v3 182.9 P6AP v2 564.7 P6AP v3 107.0 mock transfected T 44970.8 cells BCMA_BC30_V3 32725.3 A 00 IONO P5AC1 V2 27476.6 P5AC1 V3 PMA 13100.5 PC1 V3 cells 40824.4 PC1C12 V2 T 39884.0 PC1C12 V3 30245.2 COM22 V3 62690.4 P6AP V2 69923.2 P6AP v3 I 88578.4 mock ected T 29.9 BCMA_BC30_V3 4662.6 P5AC1 V2 3420.3 P5AC1 V3 MMlS 1173.7 PC1 V3 2478.5 PC1C12 V2 Tcells 5314.6 PC1C12 V3 809.9 COM22 V3 1344.6 P6AP V2 3020.3 P6AP v3 2166.7 mock transfected T .6 BCMA_BC30_V3 2360.2 P5AC1 v2 2576.3 P5AC1 v3 L363 582.7 PC1_v3 Tcells 1723.3 PC1C12 v2 2962.9 PC1C12_V3 136.6 COM22_V3 467.4 P6AP v2 2081.4 P6AP V3 1119.0 mock transfected T -80.5 BCMA_BC30_V3 -1272 P5AC1 V2 -124.4 P5AC1 V3 K562 -47.9 PC1 V3 -93.6 PC1C12 V2 Tcells 21.8 PC1C12 V3 -55.4 COM22 V3 -36.1 P6AP V2 83.8 P6AP v3 83.8 mock transfected T 335.1 BCMA BC3O V3 77948 <18) — P5AC1 v2 8093-7 P5AC1 v3 3870-6 PC1 v3 6068.9 PC1C12 v2 10190-2 Table 8C: lFN-y Production (pg/mL), Donor 8 CAR pg/ml mock transfected T cells 4 BCMA_BC30_V3 -660.92 P5AC1 v2 -603.38 P5AC1_V3 4 PC1_v3 2 -552.22 _V2 u -399.26 PC1C12 v3 -652.73 COM22 v3 -530.09 P6AP v2 17.24 P6AP v3 -289.82 mock transfected T cells 37206.73 BCMA_BC30_V3 53311.73 P5AC1 V2 Z 57732.14 P5AC1 V3 52577.56 PC1 V3 48925.48 PC1C12 V2 38310.06 PC1C12 V3 '— 71881.73 COM22 V3 61941.73 P6AP V2 82339.64 P6AP v3 63337.14 mock transfected T cells cells MM1 S -684.65 BCMA_BC30_V3 2976.34 P5AC1 V2 2727.71 P5AC1 V3 769.05 PC1 V3 2682.98 PC1C12 V2 5019.05 PC1C12 V3 -198.04 COM22 V3 1155.19 P6AP V2 2945.65 P6AP v3 671.21 mock transfected T cells -664.74 BCMA_BC30_V3 2934.77 v2 2342.50 P5AC1_V3 ED m 579.85 PC1_V3 2 2232.65 PC1C12_V2 9 PC1C12_V3 -303.86 COM22 v3 695.72 P6AP v2 1612.74 P6AP v3 311.07 mock transfected T cells -672.42 BCMA_BC30_V3 -583.71 P5AC1 v2 -631.02 P5AC1 v3 m -650.83 PC1 v3 2 -615.50 PC1C12 v2 -501.18 PC1C12 v3 7 COM22 v3 -596.02 P6AP v2 -393.94 P6AP_V3 -476.71 Table 8D: IFN-y Production (pg/mL), Donor 9 BCMA BC3O v3 18 P5AC1 v2 P5AC1 v3 PC1 v3 PC1C12 v2 COM22 v3 P6AP v2 566-5 P6AP v3 8 mock transfected T cells 8 BCMA BC3O v3 18 2 P5AC1 v2 IONO 10607.5 P5AC1 v3 12014.7 PC1_V3 PMA 12829.9 PC1C12_V2 13829.5 COM22_V3 Tcells 13489.5 P6AP_V2 13182.1 P6AP v3 13506.3 mock transfected T cells 1006.4 BCMA BC3O v3 18 2376.8 P5AC1 v2 -359.5 P5AC1 v3 MM1$ 97.8 PC1 v3 290.1 PC1C12 v2 Tcells 752.7 COM22 v3 -601.0 P6AP v2 -304.1 P6AP v3 -394.9 mock transfected T cells -228.2 BCMA BC3O v3 18 3000.2 P5AC1_v2 2314.0 P5AC1_V3 L363 1646.4 PC1_V3 cells -15.4 PC1C12_V2 2796.5 COM22 v3 320.6 P6AP v2 -163.0 P6AP v3 -233.9 mock transfected T cells -227.9 BCMA BC3O v3 18 U 2027.5 P5AC1 v2 3928.4 P5AC1 V3 PC1 V3 PC1012 V2 COM22 V3 P6AP V2 P6AP V3 Table 9A: Degranulation Assay Results, Donor 1O MFI CD107a+ CD107a+ (in CD8+) mock transfected T cells 82.2 26859 P5AC1- LT alone V2 83.8 26868 - V2 94.2 26871 COM22- V2 107 mock transfected T cells 5933 26859 P5AC1- PMA lono V2 5863 26868 PC1012- V2 6366 26871 COM22- V2 6149 mock transfected T cells 26859 P5AC1- MM1S v2 1377 . 26868 PC1012- v2 1760 . 26871 COM22- v2 1470 . mock transfected T cells 141 F" LO 26859 P5AC1- H929 v2 1026 . 26868 PC1012- v2 1262 26871 COM22- v2 784 mock transfected T cells 153 26859 P5AC1- L363 V2 793 . 26868 PC1012- V2 1054 _ L» 26871 COM22- V2 827 (D _ \l mock transfected T cells 187 E0 0° V2 1228 GFP LUC .

V2 1476 V2 1095 mock transfected T cells H929 GFP LUC V2 1648 26868 PC1012- 1666 26871 COM22- 1626 mock transfected T cells 104 L363 GFP LUC V2 753 V2 873 OM22- mock transfected T cells 913 KM5123M 26859 P5AC1- V2 945 GFP LUC 26868 PC1012- V2 1192 26871 COM22- V2 961 mock transfected T cells 127 26859 P5AC1- V2 136 26868 PC1C12- V2 119 9.49 26871 COM22- V2 135 9.55 Table 9B: Degranulation Assay Results, Donor 11 MFI CD107a+ CD107a+ (in CD8+) mock transfected T cells 0.57 26859 P5AC1- 26868 PC1C12- V2 67.2 0.88 26871 COM22- V2 80.9 3.95 mock transfected T cells 5511 91.7 26859 P5AC1- 26868 PC1C12- V2 4741 96.1 26871 COM22- V2 5066 95.7 mock transfected T cells 77.8 1.81 _--V2 650 45.5 _--V2 986 62.5 mock transfected T cells 73 1.04 H929GFP 26859 P5AC1 V2 428 30.9 26871 COM22- V2 468 35.5 mock transfected T cells 121 2.67 26859 P5AC1- V2 854 52 26868 PC1C12— V2 399 26.4 26871 COM22— V2 486 33.4 mock transfected T cells 125 3.08 26859 P5AC1- 26868 PC1C12— V2 123 1.84 26871 COM22— V2 161 4.11 Table 9C: Degranulation Assay Results, Donor 12 MFI CD107a+ CD107a+ (in CD8+) mock transfected T cells 0.57 26859 P5AC1- 26868 PC1C12— V2 67.2 0.88 26871 COM22— V2 80.9 3.95 mock transfected T cells 5511 91.7 26859 P5AC1- 26868 PC1C12— V2 4741 96.1 26871 COM22— V2 5066 95.7 mock transfected T cells 77.8 131 KMS12BM 26859 P5AC1- -- 26868 — V2 650 45.5 26871 COM22— V2 986 62.5 H929 GFP mock LUC transfected T 73 1.04 WO 66630 26859 P5AC1- V2 738 49.6 26868 PC1C12- V2 428 30.9 26871 COM22- V2 468 35.5 mock transfected T cells 121 2.67 26859 P5AC1- MM1S v2 854 52 26868 PC1C12- V2 399 26.4 26871 COM22- V2 486 33.4 mock transfected T cells 125 3.08 26859 P5AC1- 26868 PC1C12- V2 123 1.84 26871 COM22- V2 161 4.11 Table 10: IFN gamma release assay results, Donor 1O m—ocktransfected T cells _pg/mL871.8 p—_L526859CAR_BCMA_P5AC1V_2 T cells alone _p—/mL1466. 2 p—_L526868CAR_BCMA_PC1C12V_2 _p—/mL1172. 2 _CL526871CAR_BCMA_COM22_V2 873.1 ransfected T cells _pg/mL1436. 5 p—_L526859CAR_BCMA_P5AC1_V2 MM1$ _p—/mL12208.4 LchFP _p—/mL13695. 3 _CL526871CAR_BCMA_COM22_V2p—_L526868CAR_BCMA_PC1C12_V2 p—/mL10784. 1 m—ocktransfected T cells _pg/mL5329.0 p—_LSZ6859CAR_BCMA_P5AC1_\/2 _p—/mL6060. 3 p—_LSZ6868CAR_BCMA_PC1C12_\/2 _p—/mL6776.1 p—_LSZ6871CAR_BCMA_COM22_\/2_ocktransfected T cells H929 _p—/mL7827.0p—/mL754. 2 pCLSZ6859 CAR_BCMA_P5AC1_V2 LchFP 16589.9 pg/mL 2016/051808 868 CAR_BCMA_PC1C12_v2 15989.7 pg/mL pCL526871 CAR_BCMA_COM22_v2 14410.4 pg/mL mock transfected T cells 809.8 pg/mL pCL526859 CAR_BCMA_P5AC1_v2 18072.7 pg/mL pCL526868 CAR_BCMA_PC1C12_v2 17948.1 pg/mL pCL526871 MA_COM22_v2 3 pg/mL mock transfected T cells 1184.5 pg/mL pCL526859 CAR_BCMA_P5AC1_v2 L363 11556.9 pg/mL pCL526868 CAR_BCMA_PC1C12_v2 LchFP 13254.5 pg/mL pCL526871 CAR_BCMA_COM22_v2 11384.1 pg/mL mock transfected T cells 1777.3 pg/mL pCL526859 CAR_BCMA_P5AC1_v2 15685.1 pg/mL pCL526868 CAR_BCMA_PC1C12_v2 1 pg/mL pCL526871 MA_COM22_v2 14995.7 pg/mL mock transfected T cells 1184.5 pg/mL pCL526859 CAR_BCMA_P5AC1_v2 L363 11556.9 pg/mL pCL526868 CAR_BCMA_PC1C12_v2 LchFP 13254.5 pg/mL pCL526871 CAR_BCMA_COM22_v2 11384.1 pg/mL mock transfected T cells 1283.2 pg/mL 859 CAR_BCMA_P5AC1_v2 KMSlZBM 9073.3 pg/mL pCL526868 CAR_BCMA_PC1C12_v2 LchFP 10060.6 pg/mL pCL526871 CAR_BCMA_COM22_v2 10687.2 pg/mL mock transfected T cells 691.6 pg/mL pCL826859 CAR_BCMA_P5AC1_v2 684.1 pg/mL pCL526868 CAR_BCMA_PC1C12_v2 904.2 pg/mL pCL526871 CAR_BCMA_COM22_v2 969.0 pg/mL Exam |e 3: BCMA s ecific CAR-T cells induce tumor re ression in MM1.S tumor model This e illustrates treatment of tumors with BCMA specific CAR-T cells using the MM1.S tumor model.

In vivo efficacy study of BCMA specific CAR-T cells was performed with MM1.S, expressing |uciferase and GFP, orthotopic model. Five mi||ion MM1.S Luc2AGFP cells were injected intravenously through the tail vein into 6-8 weeks old female Nod/Scid/IL2Rg-l—(NSG) animals. |ntraperitonea| injection of ferin (Regis Technologies, Morton Grove, IL) (200uL per animal at 15mg/mL), followed by anesthesia 1O with isofluorane and subsequent whole body bio|uminescence imaging (BLI) enable monitoring of tumor burden. Bioluminescent signals emitted by the interaction between luciferase expressed by the tumor cells and luciferin were ed by imaging using an MS um CT (Perkin Elmer, MA) and quantified as total flux (photons/sec) using Living Image 4.4 (Caliper Life Sciences, Alameda, CA).

Three different BCMA specific CAR-T cells were used in this study: T cells expressing the BCMA specific CAR contructs P5AC1-V2, PC1C12-V2, or COM22—V2 (see, Table 5 above). Non-transduced control T cells were used as the negative control. All T cells were engineered to be TCRd deficient.

When the total flux d an average of 45E6 for all animals (day 20 post tumor 1O implant), the animals were randomized into four groups. A single dose of human either BCMA specific CAR-T cells or ansduced l T cells was administered h bolus tail vein injection. Animals were terminated when they exhibit hindlimb sis or a % loss of body weight, an endpoint for MM1.S orthotopic models.

Results of this study are summarized in Figure 1. In Figure 1, total flux [p/s] represents tumor progression. Treatment with BCMA specific CAR-T cells (triangles, diamonds, s) resulted in lower total flux as compared to the negative l (circles). Thus, treatment with BCMA specific CAR-T cells inhibited tumor progression as compared to the negative control.

These results demonstrate BCMA specific CAR-T cells are effective to induce tumor regression.

Example 4: Treatment of Multiple Myeloma with BCMA specific CAR-T Cells This example illustrates ent of multiple myeloma with BCMA specific CAR-T cells using the Molp8 orthotopic model.

In vivo efficacy study of BCMA specific CAR-T cells was performed with Molp8, expressing luciferase and GFP, orthotopic model. Two million Molp8 Luc2AGFP cells were injected intravenously through the tail vein into 6-8 weeks old female NSG animals. lntraperitoneal injection of D-luciferin (Regis Technologies, Morton Grove, IL) (200uL per animal at 15mg/mL), followed by anesthesia with isofluorane and subsequent whole body bioluminescence imaging (BLI) enable ring of tumor burden. Bioluminescent signals emitted by the interaction n luciferase expressed by the tumor cells and luciferin were captured by imaging using an MS Spectrum CT (Perkin Elmer, MA) and quantified as total flux (photons/sec) using Living Image 4.4 (Caliper Life Sciences, Alameda, CA).

When the total flux reached an average of 30E6 for all animals (day 8 post tumor implant), the s were randomized into three groups. Each group was administered one of the following cells: 1) non-transduced T cells TCR KO ("TCR KO") used as a control, 2) BCMA specific CAR-T cells expressing P5AC1-V2.1 ("P5AC1 V2 R2 TCR KO"), or 3) BCMA specific CAR-T cells expressing P5AC1-V2 and the RQR8 suicide polypeptide ("P5AC1 V2 RQR8 TCR KO"). All of cells 1-3 are TCRd deficient. The BCMA specific CAR- T cells were prepared as described in example above. BCMA specific CAR constructs 1O P5AC1-V2.1 and P5AC1-V2 are shown in Table 5 above. A single dose of 3 million control (TCR KO) or BCMA specific CAR-T (P5AC1 V2 R2 TCR KO or P5AC1 V2 RQR8 TCR KO) cells were administered through bolus tail vein injection. Animals were terminated when they lose more than 15% of total body weight, an endpoint for Molp8 orthotopic models.

Results from the study are summarized in Figure 2. A single dose of 3 million P5AC1 R2 TCRKO BCMA specific CAR-T cells (squares) or P5AC1 RQR8 TCRKO CAR-T cells (triangles) BCMA ic CAR-T cells resulted in lower total flux from days 10-35 post tumor implant as compared to the negative l (circles) (Figure 2). Thus, treatment with BCMA ic CAR-T cells inhibited tumor progression as compared to the negative control.

These s demonstrate BCMA specific CAR-T cells are effective to inhibit tumor progression.

Example 5: Treatment of le myeloma with BCMA specific CAR-T cells This example illustrates the therapeutic activity of BCMA ic CAR-T cells in orthotopic mouse models of le a.

Two humanized mouse models were used to evaluate the efficacy of BCMA specific CAR-T cells against human myeloma cell lines expressing BCMA. Six (6) to eight (8) week old female id lL2rg-/- (NSG) mice were purchased from the Jackson Laboratories.

All animals were housed in a pathogen free vivarium facility at Rinat and experiments were conducted according to the protocols in accordance with the Institutional Animal Care and Use Committee (IACUC) guidelines. 2016/051808 The MM1.S and Molp-8 cell lines were purchased from the an Type Culture Collection (ATCC.org) and the Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH (DSMZ.de). Cell lines were engineered to express a Luc-GFP fusion protein using lentiviral particles (amsbio). Cells were cultured in RPMI 1640 medium with L-glutamine supplemented with either 10% fetal calf serum for MM1.S or with 20% FCS for Molp-8 cells at 37°C in 5% carbon dioxide (C02). Cells growing in an exponential growth phase were harvested and used for tumor inoculation.

Therapeutic BCMA specific CAR-T cells were ed as described. Healthy human donor cells, peripheral blood mononuclear cells (PBMC) or purified pan-T cells, are 1O activated and transduced with lentiviral particles encoding a BCMA specific CAR and RQR8 driven by EF-1a promoter. Three different BCMA specific CARs were used in this study: P5AC1-V2, PC1C12-V2 and COM22-V2 (see, Table 5 above). T cells were gene edited for deletion of the TCRd gene. Cells were cultured for 14 to 17 days and then eserved in 90% FCS/10% DMSO. For T cell injection, T cells were y thawed in a 37°C waterbath and washed twice with RPMI 1640 medium containing 25mM Hepes.

Cells were injected in 0.2 ml RPMI 1640 with 25 mM Hepes into the tail vein of tumor- bearing animals.

NSG mice were irradiated with 1 Gy total body irradiation (RAD Source Technologies) one day prior to tumor cell inoculation. 5x106 Luc2—EGFP cells or 2x106 Molp-8/Luc2—EGFP cells were injected into the tail vein in 0.1 ml of phosphate- buffered saline (PBS). Tumor burden was measured twice weekly using bioluminescence imaging. Mice were ed with 3 ug D-Luciferin dissolved in 0.2 ml PBS and anesthetized using isofluorane. 7 minutes after injection animals were imaged using a Perkin Elmer lVlS Spectrum camera system. The total body luminescence with the exception of the mouse tail was measured and tumor burden is reported as total flux (photons per second). Tumors were allowed to establish until ntial growth occurred. Animals were randomized into treatment groups based on total flux and treated with BCMA specific CAR-T cells or untransduced control T cells from the same donor. The effect of CAR-T ent was assessed twice weekly using bioluminescence imaging and body weight measurements.

The study nt was reached when the first animal exhibited end-stage e as indicated by body weight loss (>20% of initial body weight), hindleg paralysis, or other signs of animal distress. Statistical is was performed using GraphPad Prism 6. Repeated measures one-way ANOVA with Tukey’s correction was used to compare anti-tumor efficacy between all groups. P<0.05 was ered significant.

Results are summarized in Table 11 (MM1.S) and Table 12 (Molp-8) below (log1o values of total flux in photons per second +/- SEM). A suboptimal CAR-T cell dose was used to compare BCMA ic CAR-T cells having different scFvs. The BCMA ic CAR-T cell groups are P5AC1-V2, PC1C12-V2 and V2 (see, Table 5 above). In the MM1.S model, 3.5x106 CAR-expressing T cells were injected on day 17 after tumor implantation. In the Molp8 model, 4x106 CAR-expressing T cells were injected on day 7 1O after tumor implantation. Transduction efficiencies ranged from 19% to 29% for BCMA specific CAR-T cells dosed in MM1.S mouse model and 31% to 36% for BCMA specific CAR-T cells dosed in Molp8 mouse model. An equivalent total dose of untransduced T cells was used for the l group. The control T cell-treated group exhibited progressive tumor growth until the study endpoint was reached at day 35 for MM1.S and day 23 for Molp8. Statistical analysis of the tumor burden using the RM-ANOVA test with Dunnets correction showed that in all three BCMA specific CAR-T treated groups, tumor burden was significantly lower compared to the tumor burden in the l group (p<0.01) (Tables 11 and 12). For example, in the MM1.S tumor model, mean total flux in animals treated with P5AC1-V2 BCMA specific CAR-T cells was 6.44 log1O photons/s at day 25, compared to 9.22 log1O photons/s in animals given control T cells (Table 11). At day 35 post tumor implantation, mean total flux in animals treated with P5AC1-V2 BCMA specific CAR-T cells was 6.82 log1O photons/s, compared to 10.18 log1O photons/s in animals given control T cells (Table 11). In the Molp8 tumor model, mean total flux in s d with P5AC1- V2 BCMA specific CAR-T cells was 7.88 log1O s/s at day 14, compared to 9.39 log1O photons/s in animals given control T cells (Table 12). At day 23 post tumor implantation, mean total flux in animals treated with P5AC1-V2 BCMA specific CAR-T cells was 9.29 log1O photons/s, compared 10.37 log1O photons/s in animals given control T cells (Table 12).

These results demonstrate that treatments with BCMA specific CAR-T cells are ive to induce tumor regression.

Table 11: Tumor bioluminescence measurements of orthotopic MM1.S tumor model Group 1: Control T cells Days after tumor Mean total flux (log10 implantation photons/s) 17 7.84 0.04 8.16 0.19 9.22 0.02 9.53 0.02 0.05 .18 0.07 Group 2: P5AC1-V2 BCMA specific CAR-T cells Days after tumor Mean total flux Imolantation. . lo-10 17 7.84 0.03 8.14 0.11 6.44 0.16 6.51 6.72 6.82 Group 3: PC1C12-V2 BCMA specific CAR-T cells Days after tumor Mean total flux . . SEM tation lo-10 17 7.86 0.04 8.56 0.15 6.85 0.26 6.41 0.30 6.64 0.29 6.62 0.30 Group 4: COM22-V2 BCMA specific CAR-T cells Days after tumor Mean total flux . . SEM Imolantation lo-10 17 7.84 0.04 8.49 0.10 6.55 0.08 6.40 6.98 0.14 6.87 0.22 Table 12: Tumor bioluminescence ements of orthotopic Molp-8 tumor model Grouo 1: T cell onl control imolantation lo-10 SEM N —_——— ———-I_ .37 Grouo 2: P5AC1-V2 BCMA s-ecific CAR-T cells imolantation lo-10 SEM N —_——— Group 3: PC1C12—V2 BCMA specific CAR-T cells imolantation lo-10 SEM N —_——— Grouo 4: COM22—V2 BCMA s-ecific CAR-T cells Days after tumor implantation Mean total flux (log10 SEM N —_——— WO 66630 7 7.49 0.04 10 Example 6: Treatment of multiple a with CK knockout BCMA specific CAR- T cells This example illustrates the therapeutic activity of BCMA specific CAR-T cells in orthotopic mouse models of multiple myeloma.

A humanized mouse model was used to evaluate the efficacy of BCMA CAR-T cells against human myeloma cell lines expressing BCMA. 6 to 8 week old female Nod/Scid lL2rg-/- (NSG) mice were purchased from the Jackson Laboratories. All animals were housed in a pathogen free vivarium facility at Rinat and experiments were conducted 1O according to the ols in accordance with the Institutional Animal Care and Use Committee (IACUC) guidelines.

The MM1.S cell lines was purchased from the American Type e Collection (ATCC.org). The Cell line was engineered to express a Luc-GFP fusion protein using lentiviral particles (amsbio)and gene edited using TALEN nucleases to disable the ytidine (dCK) gene. Cells were cultured in RPMI 1640 medium with L-glutamine supplemented with 10% fetal calf serum at 37°C in 5% carbon dioxide (C02). Cells growing in an exponential growth phase were harvested and used for tumor inoculation.

Therapeutic CAR-T cells were produced as described. Healthy human donor cells, peripheral blood mononuclear cells (PBMC) or purified pan-T cells, are activated and transduced with lentiviral particles encoding for BCMA scFV, CD8 hinge, CD8 transmembrane, 4188 and CD3: with RQR8 genes under the control of the EF-1a er. The BCMA specific CAR-T cells were gene edited to delete the TCRd and/or the dCK gene using a combination of TCRd and dCK TALEN, or TCRd TALEN alone. uction efficiency for all T cells was 70%. TCRd knockout T cells were purified using magnetic selection kits for CD3-positive cells (Miltenyi); dCK knockout T cells were purified by expansion in the presence of 0.5 uM clofarabine. Cells were cultured for 14 to 17 days and then cryopreserved in 90% FCS/10% DMSO. For T cell injection, T cells were rapidly thawed in a 37°C water bath and washed twice with RPMI 1640 medium ning 25mM Hepes. For treatment, T cells were injected in 0.2 ml RPMI 1640 with 25 mM Hepes into the tail vein of tumor-bearing animals.

For the mouse tumor model, animals were injected with MM1.S/dCK KO tumor cells.

Mice were then treated with 2.5x106 BCMA specific CAR-T cells on day 18 post tumor cell implantation. An equivalent dose of sduced T cells that received TCRd and dCK TALEN was used as control. Animals were treated with clofarabine or vehicle for five days after T cell injection. 1O s: the control T cell-treated group exhibited progressive tumor growth until the study endpoint was reached at day 35 (Table 13, Group 1). Compared against control, groups d with TCRd knockout BCMA specific CAR-T cells and vehicle exhibited a significant decrease in tumor burden (p<0.05) that was diminished upon coadministration of clofarabine (p<0.05) (Table 13, Groups 2 and 3). Tumor burden was significantly reduced in s treated with TCRd/dCK double knockout CAR-T cells, irrespective of whether the s received vehicle or clofarabine (p<0.05) (Table 13, Groups 4 and 5). Reduction of tumor burden in the groups receiving TCRd/dCK double knockout T cells did not differ from the group ing TCRd single knockout T cells and vehicle (p>0.1) (Table 13, Groups 2, 4, and 5).

These s demonstrate that treatments with TCRd/dCK double ut BCMA CAR-T cells are effective to induce tumor regression in the presence of nucleoside analog therapies such as fludarabine and clofarabine.

Table 13: Tumor bioluminescence measurements of nucleoside analog therapy-resistant orthotopic MM1.S tumor model.

Group 1: TCRd/dCK KO control T cells + clofarabine Days after T cell Mean total flux (log10 . . . SEM N administration ohotons/s —_——— _-——— Group 2: TCROi KO BCMA specific CAR-T cells + vehicle Days after T cell Mean total flux . . . SEM administration lo- 10 7.86 0.04 9.28 0.07 8.58 0.12 11 8.04 0.14 8.14 0.15 18 8.24 0.15 Group 3: TCRd KO BCMA specific CAR-T cells + abine Days after T cell Mean total flux . . . SEM administration lo-10 7.87 0.04 9.33 0.07 9.17 0.07 11 8.95 0.14 9.36 0.08 18 9.50 0.07 Group 4: TCROi/dCK KO BCMA specific CAR-T cells + vehicle Days after T cell Mean total flux administration lo- 10 7.86 0.04 10 9.19 0.08 10 9.08 0.12 10 11 8.59 0.18 10 8.60 0.21 10 18 8.69 0.18 10 Group 5: TCRd/dCK KO BCMA specific CAR-T cells + clofarabine Days after T cell Mean total flux . . . SEM administration lo- 10 7.87 0.04 9.26 9.07 0.10 8.51 0.14 8.42 0.21 8.49 0.18 Although the sed teachings have been described with reference to various ations, methods, kits, and compositions, it will be appreciated that various changes and modifications can be made without departing from the teachings herein and the claimed invention below. The foregoing examples are provided to better illustrate the 2016/051808 disclosed teachings and are not intended to limit the scope of the teachings presented herein. While the present teachings have been described in terms of these exemplary embodiments, the skilled artisan will readily understand that numerous variations and modifications of these exemplary embodiments are possible without undue experimentation. All such variations and modifications are within the scope of the current teachings.

All references cited herein, including patents, patent applications, papers, text books, and the like, and the references cited therein, to the extent that they are not already, are hereby incorporated by reference in their entirety. In the event that one or more of the 1O incorporated literature and similar materials differs from or contradicts this application, ing but not limited to d terms, term usage, described techniques, or the like, this application controls.

The foregoing description and Examples detail certain specific embodiments of the invention and describes the best mode plated by the ors. It will be appreciated, however, that no matter how detailed the foregoing may appear in text, the invention may be practiced in many ways and the invention should be construed in accordance with the appended claims and any equivalents thereof.

Claims

Claims (20)

It is claimed:

1. A B-cell maturation n (BCMA) specific chimeric antigen receptor (CAR) comprising an extracellular ligand-binding domain, a first transmembrane domain, and an intracellular signaling domain, wherein the extracellular domain comprises a single chain Fv nt (scFv) comprising (a) a heavy chain variable (VH) region comprising a VH complementary determining region 1 (VH CDR1), a VH complementary determining region 2 (VH CDR2), and a VH complementary determining region 3 (VH CDR3), wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 153 or 154; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a light chain variable (VL) region comprising a VL mentary determining region 1 (VL CDR1), a VL complementary determining region 2 (VL CDR2), and a VL complementary determining region 3 (VL CDR3), wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 209; the VL CDR2 comprises the amino acid ce of SEQ ID NO: 221; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 222; (b) a VH region sing a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 187 or 188; and the VH CDR3 comprises the amino acid ce of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 249; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 ses the amino acid sequence of SEQ ID NO: 225; (c) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid ce of SEQ ID NO: 165 or 166; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 226; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 227; (d) a VH region sing a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 151, 156, or 157; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 159 or 162; and the VH CDR3 ses the amino acid sequence of SEQ ID NO: 161; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 251; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 252; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 253; (e) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 151, 156, or 157; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 190 or 191; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 161; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 262; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 252; and the VL CDR3 ses the amino acid sequence of SEQ ID NO: 263; (f) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, n the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 150, 151, or 152; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 154 or 169; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 ses the amino acid sequence of SEQ ID NO: 271; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 272; (g) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid ce of SEQ ID NO: 129, 130, or 131; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 139 or 140; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 134; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 217; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 210; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 216; or (h) a VH region comprising a VH CDR1, a VH CDR2, and a VH CDR3, wherein the VH CDR1 comprises the amino acid sequence of SEQ ID NO: 151, 156, or 157; the VH CDR2 comprises the amino acid sequence of SEQ ID NO: 158 or 159; and the VH CDR3 comprises the amino acid sequence of SEQ ID NO: 155; and a VL region comprising a VL CDR1, a VL CDR2, and a VL CDR3, wherein the VL CDR1 comprises the amino acid sequence of SEQ ID NO: 209; the VL CDR2 comprises the amino acid sequence of SEQ ID NO: 221; and the VL CDR3 comprises the amino acid sequence of SEQ ID NO: 225.

2. The BCMA specific CAR of claim 1, wherein the VH region comprises a VH CDR1 comprising the amino acid sequence shown in SEQ ID NO: 150, 151, or 152; a VH CDR2 sing the amino acid ce shown in SEQ ID NO: 153 or 154; and a VH CDR3 comprising the amino acid sequence shown in SEQ ID NO: 155; and a light chain variable region (VL) comprising the following CDRs: a VL CDR1 sing the amino acid sequence shown in SEQ ID NO: 209; a VL CDR2 comprising the amino acid sequence shown in SEQ ID NO: 221; and a VL CDR3 comprising the amino acid sequence shown in SEQ ID NO: 222.

3. The BCMA specific CAR of claim 1, wherein the VH region comprises a VH CDR1 comprising the amino acid sequence shown in SEQ ID NO: 151, 156, or 157; a VH CDR2 comprising the amino acid sequence shown in SEQ ID NO: 158 or 159; and a VH CDR3 comprising the amino acid sequence shown in SEQ ID NO: 155; and a light chain variable region (VL) sing the following CDRs: a VL CDR1 comprising the amino acid sequence shown in SEQ ID NO: 209; a VL CDR2 comprising the amino acid sequence shown in SEQ ID NO: 221; and a VL CDR3 comprising the amino acid sequence shown in SEQ ID NO: 225.

4. The BCMA ic CAR of claim 1, wherein the VH region comprises the amino acid sequence shown in SEQ ID NO: 112 and the VL region comprises the amino acid ce shown in SEQ ID NO: 38.

5. The BCMA specific CAR of claim 1, wherein the VH region comprises the amino acid ce shown in SEQ ID NO: 33 and the VL region comprises the amino acid sequence shown in SEQ ID NO: 34.

6. The BCMA specific CAR of any one of claims 1 to 5, wherein: (a) the intracellular signaling domain comprises a CD3ζ ling domain and/or a 4-1BB domain; and/or (b) the first transmembrane domain comprises a CD8α chain transmembrane domain; and/or (c) the extracellular ligand-binding domain(s), the first transmembrane domain, and ellular signaling domain(s) are on a single polypeptide.

7. The BCMA specific CAR of any one of claims 1 to 6, further comprising: (a) a second intracellular signaling domain; optionally the second intracellular signaling domain comprises a 4-1BB ; and/or (b) a stalk domain between the extracellular ligand-binding domain and the first transmembrane domain; optionally the stalk domain is selected from the group consisting of: a human CD8α hinge, an IgG1 hinge, and an FcγRIII α hinge; and/or (c) a CD20 epitope; optionally the CD20 epitope comprises the amino acid ce shown in SEQ ID NO: 397 or SEQ ID NO: 398; and optionally the BCMA specific CAR comprises the amino acid sequence shown in SEQ ID NO: 396; and/or (d) another extracellular ligand-binding domain which is not specific for BCMA.

8. The BCMA specific CAR of claim 1, wherein the BCMA specific CAR comprises the amino acid sequence shown in SEQ ID NO: 344.

9. The BCMA specific CAR of claim 8, r comprising a CD20 epitope.

10. The BCMA specific CAR of claim 9, wherein the CD20 e comprises the amino acid sequence shown in SEQ ID NO: 397 or SEQ ID NO: 398.

11. A polynucleotide comprising a nucleic acid sequence encoding the BCMA specific CAR of any one of claims 1 to 10.

12. An expression vector comprising the polynucleotide of claim 11.

13. An engineered immune cell expressing at its cell surface membrane a BCMA ic CAR of any one of claims 1 to 10, provided that if the cell is a human cell it is ex vivo.

14. The engineered immune cell of claim 13, (a) r comprising another CAR which is not specific for BCMA; and/or (b) further comprising a polynucleotide encoding a suicide polypeptide; and/or (c) further comprising a disruption of one or more endogenous genes, wherein the endogenous gene encodes TCRα, TCRβ, CD52, glucocorticoid receptor (GR), deoxycytidine kinase (dCK), or an immune checkpoint protein such as for example programmed death-1 ; and/or (d) n the immune cell is from a healthy donor.

15. The engineered immune cell of claim 13 or 14 for use as a medicament.

16. Use of the engineered immune cell of claim 13 or 14 in the manufacture of a medicament for treatment of a B-cell related cancer selecting from the group consisting of multiple myeloma, ant plasma cell neoplasm, Hodgkin’s lymphoma, nodular lymphocyte predominant Hodgkin’s lymphoma, Kahler’s disease and Myelomatosis, plasma cell leukemia, plasmacytoma, B-cell prolymphocytic leukemia, hairy cell ia, B-cell non-Hodgkin’s ma (NHL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), acute lymphocytic leukemia (ALL), chronic myeloid leukemia (CML), follicular lymphoma, marginal zone ma, mantle cell lymphoma, large cell lymphoma, precursor B-lymphoblastic lymphoma, myeloid leukemia, diffuse large B cell lymphoma, mucosa-associated lymphatic tissue lymphoma, small cell lymphocytic lymphoma, Burkitt lymphoma, primary mediastinal (thymic) large B-cell lymphoma, lymphoplasmactyic lymphoma, Waldenström macroglobulinemia, nodal marginal zone B cell lymphoma, splenic marginal zone ma, intravascular large B-cell lymphoma, primary effusion lymphoma, lymphomatoid granulomatosis, T cell/histiocyte-rich large B-cell lymphoma, primary central nervous system lymphoma, primary ous diffuse large B-cell lymphoma (leg type), EBV positive diffuse large B-cell ma of the elderly, e large B-cell lymphoma associated with inflammation, ALK-positive large B-cell lymphoma, plasmablastic lymphoma, large B-cell lymphoma arising in ssociated multicentric Castleman disease, B-cell lymphoma unclassified with features intermediate between e large B-cell lymphoma and Burkitt lymphoma, B-cell ma unclassified with features intermediate between diffuse large B-cell lymphoma and classical Hodgkin lymphoma, and other B-cell related lymphoma.

17. A pharmaceutical composition comprising the ered immune cell of claim 13 or

18. Use of the engineered immune cell of claim 13 or 14 or the pharmaceutical composition of claim 17, in the manufacture of a medicament for inhibiting tumor growth or progression in a subject who has malignant cells sing BCMA, inhibiting metastasis of malignant cells expressing BCMA in a subject, or inducing tumor regression in a subject who has malignant cells expressing BCMA; optionally wherein the medicament is to be administered with a nucleoside analog y, fludarabine, or clofarabine.

19. An in vitro method of engineering an immune cell expressing a BCMA specific CAR, comprising: a. providing an immune cell; b. introducing into the cell at least one polynucleotide encoding BCMA ic CAR according to any one of claims 1 to 10; and c. optionally introducing into the cell at least one polynucleotide encoding a CAR that is not specific for BCMA.

20. The BCMA specific CAR of claim 1, substantially as herein described with nce to any one of the Examples and/or