Antibodies specific to CTLA-4 and uses thereof
AssigneesTikcro Technologies Ltd., Yeda Research and Development Co. Ltd.
InventorsAmi Navon, Aviv Boim, Ariel Stanhill, Leehee Weinberger, Yuval Avnir
Life of this patent
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Abstract
Disclosed herein are anti-CTLA-4 antibodies possessing superior binding and biological activities relative to ipibmumab and tremelimumab, pharmaceutical compositions comprising such. Also provided herein are therapeutic and diagnostic applications of such anti-CTLA-4 antibodies.
Claims22
A monoclonal antibody binding to cytotoxic T-lymphocyte-associated protein 4 (CTLA-4),
- (a) wherein the antibody comprises a heavy chain variable domain (VH), which comprises (i) a heavy chain complementary determining region 1 (HC CDR1) set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) a heavy chain complementary determining region 2 (HC CDR2) set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) a heavy chain complementary determining region 3 (HC CDR3) set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a light chain variable domain (VL), which comprises (i) a light chain complementary determining region 1 (LC CDR1) set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) a light chain complementary determining region 2 (LC CDR2) set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) a light chain complementary determining region 3 (LC CDR3) set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (b) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWN (SEQ ID NO:
- 28);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (c) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHDGYTYYNPSLKS (SEQ ID NO:
- 31);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (d) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSAYTYYNPSLKS (SEQ ID NO:
- 32);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (e) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSVKS (SEQ ID NO:
- 33);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (f) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFAY (SEQ ID NO:
- 34);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (g) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDI (SEQ ID NO:
- 35);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (h) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSISSNLA (SEQ ID NO:
- 49);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (i) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as AASTRAT (SEQ ID NO:
- 53);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (j) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GATTRAT (SEQ ID NO:
- 54);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- or
- (k) wherein the antibody comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the antibody comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASSRAT (SEQ ID NO:
- 55);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8).
A genetically engineered immune cell, which expresses a chimeric antigen receptor comprising an extracellular domain and at least one cytoplasmic signaling domain, wherein the extracellular domain is a single chain variable fragment (scFv) of a CTLA-4-binding antibody,
- (a) wherein the scFv comprises a heavy chain variable domain (VH), which comprises (i) a heavy chain complementary determining region 1 (HC CDR1) set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) a heavy chain complementary determining region 2 (HC CDR2) set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) a heavy chain complementary determining region 3 (HC CDR3) set forth as DSGWYVIAFDY (SEQ ID NO:
- 17) and wherein the scFv comprises a light chain variable domain (VL), which comprises (i) a light chain complementary determining region 1 (LC CDR1) set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) a light chain complementary determining region 2 (LC CDR2) set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) a light chain complementary determining region 3 (LC CDR3) set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (b) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWN (SEQ ID NO:
- 28);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (c) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHDGYTYYNPSLKS (SEQ ID NO:
- 31);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (d) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSAYTYYNPSLKS (SEQ ID NO:
- 32);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (e) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSVKS (SEQ ID NO:
- 33);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (f) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFAY (SEQ ID NO:
- 34);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (g) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDI (SEQ ID NO:
- 35);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (h) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSISSNLA (SEQ ID NO:
- 49);
- (ii) an LC CDR2 set forth as GASTRAT (SEQ ID NO:
- 22);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (i) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as AASTRAT (SEQ ID NO:
- 53);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- (j) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GATTRAT (SEQ ID NO:
- 54);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8);
- or
- (k) wherein the scFv comprises a VH, which comprises (i) an HC CDR1 set forth as GDYYWG (SEQ ID NO:
- 15);
- (ii) an HC CDR2 set forth as SIYHSGYTYYNPSLKS (SEQ ID NO:
- 16);
- and (iii) an HC CDR3 set forth as DSGWYVIAFDY (SEQ ID NO:
- 17);
- and wherein the scFv comprises a VL, which comprises (i) an LC CDR1 set forth as RASQSVSSNLA (SEQ ID NO:
- 21);
- (ii) an LC CDR2 set forth as GASSRAT (SEQ ID NO:
- 55);
- and (iii) an LC CDR3 set forth as QQYNNWPPLT (SEQ ID NO:
- 8).
Dependencies are inferred from the claim text.