Antibodies against glucocorticoid-induced tumor necrosis factor receptor (gitr) and uses thereof

Abstract

Provided herein are antibodies, or antigen binding portions thereof, that bind to glucocorticoid-inducible TNF receptor (GITR). Also provided are uses of these proteins in therapeutic applications, such as in the treatment of cancer. Further provided are cells that produce the antibodies, polynucleotides encoding the heavy and/or light chain variable region of the antibodies, and vectors comprising the polynucleotides encoding the heavy and/or light chain variable region of the antibodies.

1 - 28 . (canceled) 
     
     
         29 . An isolated antibody which binds to glucocorticoid-inducible TNF receptor (GITR), comprising:
 (a) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 33, 34, and 35, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 36, 37, and 38, respectively;   (b) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 46, 47, and 48, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 49, 50, and 51, respectively;   (c) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 62, 63, and 64, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 65, 66, and 67, respectively;   (d) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 62, 63, and 64, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 68, 69, and 70, respectively;   (e) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 78, 79, and 80, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 81, 82, and 83, respectively;   (f) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 91, 92, and 93, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 94, 95, and 96, respectively;   (g) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 106, 107, and 108, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 109, 110, and 111, respectively;   (h) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 106, 107, and 108, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 112, 113, and 114, respectively;   (i) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 122, 123, and 124, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 125, 126, and 127, respectively;   (j) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 138, 139, and 140, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 141, 142, and 143, respectively;   (k) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 138, 139, and 140, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 144, 145, and 146, respectively; or   (l) heavy chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 342-344, respectively, and/or light chain CDR1, CDR2, and CDR3 sequences comprising SEQ ID NOs: 345-347, respectively.   
     
     
         30 . An isolated antibody which binds to glucocorticoid-inducible TNF receptor (GITR) and comprises heavy and/or light chain variable region sequences selected from the group consisting of:
 (a) SEQ ID NOs: 26 and 27, respectively;   (b) SEQ ID NOs: 39 and 40, respectively;   (c) SEQ ID NOs: 52 and 53, respectively;   (d) SEQ ID NOs: 52 and 54, respectively;   (e) SEQ ID NOs: 71 and 72, respectively;   (f) SEQ ID NOs: 84 and 85, respectively;   (g) SEQ ID NOs: 97 and 98, respectively;   (h) SEQ ID NOs: 97 and 99, respectively;   (i) SEQ ID NOs: 115 and 116, respectively;   (j) SEQ ID NOs: 128 and 129, respectively;   (k) SEQ ID NOs: 128 and 130, respectively; and   (l) SEQ ID NOs: 335 and 336, respectively.   
     
     
         31 . An isolated antibody which binds to glucocorticoid-inducible TNF receptor (GITR) and comprises heavy chain and/or light chain sequences selected from the group consisting of:
 (a) SEQ ID NOs: 28 and 29, respectively;   (b) SEQ ID NOs: 30 and 32, respectively;   (c) SEQ ID NOs: 31 and 32, respectively;   (d) SEQ ID NOs: 41 and 42, respectively;   (e) SEQ ID NOs: 43 and 45, respectively;   (f) SEQ ID NOs: 44 and 45, respectively;   (g) SEQ ID NOs: 55 and 56, respectively;   (h) SEQ ID NOs: 55 and 57, respectively;   (i) SEQ ID NOs: 58 and 60, respectively;   (j) SEQ ID NOs: 59 and 60, respectively;   (k) SEQ ID NOs: 58 and 61, respectively;   (l) SEQ ID NOs: 59 and 61, respectively;   (m) SEQ ID NOs: 73 and 74, respectively;   (n) SEQ ID NOs: 75 and 77, respectively;   (o) SEQ ID NOs: 76 and 77, respectively;   (p) SEQ ID NOs: 86 and 87, respectively;   (q) SEQ ID NOs: 88 and 90, respectively;   (r) SEQ ID NOs: 89 and 90, respectively;   (s) SEQ ID NOs: 102 and 104, respectively;   (t) SEQ ID NOs: 103 and 104, respectively;   (u) SEQ ID NOs: 100 and 101, respectively;   (v) SEQ ID NOs: 100 and 371, respectively;   (w) SEQ ID NOs: 102 and 105, respectively;   (x) SEQ ID NOs: 103 and 105, respectively;   (y) SEQ ID NOs: 117 and 118, respectively;   (z) SEQ ID NOs: 119 and 121, respectively;   (za) SEQ ID NOs: 120 and 121, respectively;   (zb) SEQ ID NOs: 131 and 132, respectively;   (zc) SEQ ID NOs: 134 and 136, respectively;   (zd) SEQ ID NOs: 135 and 136, respectively;   (ze) SEQ ID NOs: 131 and 133, respectively;   (zf) SEQ ID NOs: 134 and 137, respectively;   (zg) SEQ ID NOs: 135 and 137, respectively;   (zh) SEQ ID NOs: 337 and 338, respectively;   (zi) SEQ ID NOs: 339 and 341, respectively; and   (zj) SEQ ID NOs: 340 and 341, respectively.   
     
     
         32 . The isolated antibody of  claim 29 , wherein the antibody binds to a cell expressing membrane-bound human GITR with a K D  of 10 nM or less as determined by Scatchard analysis. 
     
     
         33 . The isolated antibody of  claim 29 , wherein the antibody binds to human GITR on activated human T cells. 
     
     
         34 . The isolated antibody of  claim 29 , wherein the antibody stimulates a T cell response. 
     
     
         35 . The isolated antibody of  claim 29 , which is a human IgG antibody. 
     
     
         36 . The isolated antibody of  claim 35 , which is an IgG1, an IgG2, an IgG3, or an IgG4 antibody. 
     
     
         37 . The isolated antibody of  claim 29 , wherein the antibody is a human or humanized antibody. 
     
     
         38 . A bispecific molecule comprising the antibody of  claim 29  linked to a molecule having a second binding specificity. 
     
     
         39 . A nucleic acid encoding the heavy and/or light chain variable region of the antibody of  claim 29 . 
     
     
         40 . An expression vector comprising the nucleic acid of  claim 39 . 
     
     
         41 . A cell transformed with the expression vector of  claim 40 . 
     
     
         42 . An immunoconjugate comprising the antibody of  claim 29 , linked to an agent. 
     
     
         43 . A composition comprising the antibody of  claim 29 , and a pharmaceutically acceptable carrier. 
     
     
         44 . A kit comprising the antibody of  claim 29 , and instructions for use. 
     
     
         45 . A method of preparing an antibody which binds to human GITR comprising culturing the cell of  claim 41  and isolating the antibody from the cell. 
     
     
         46 . A method for inhibiting the growth of tumor cells in a subject comprising administering to the subject an effective amount of the antibody of  claim 29 . 
     
     
         47 . A method of treating cancer comprising administering to a subject in need thereof a therapeutically effective amount of the antibody of  claim 29 . 
     
     
         48 . A method of detecting the presence of human GITR in a sample comprising contacting the sample with the antibody of  claim 29  under conditions that allow for formation of a complex between the antibody and human GITR, and detecting the formation of a complex.