Antibodies targeting b-cell maturation antigen and methods of use
The presently disclosed subject matter provides antibodies that bind to B-cell maturation antigen (BCMA) and methods of using the same.
1. An anti-B Cell Maturation Antigen (BCMA) single chain variable fragment (scFv), comprising a heavy chain variable region and a light chain variable region, wherein:
(a) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 167, 168, and 169, respectively and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 170, 171, and 172, respectively;
(b) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 185, 186, and 187, respectively and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 188, 189, and 190, respectively; or
(c) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 119, 120, and 121, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 122, 123, and 124, respectively.
2. The anti-BCMA scFv of claim 1 , wherein:
(a) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:54;
(b) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:66; or
(c) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:22.
3. The anti-BCMA scFv of claim 1 , wherein:
(a) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:54;
(b) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:66; or
(c) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:22.
4. The anti-BCMA scFv of claim 1 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 167, 168, and 169, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 170, 171, and 172, respectively.
5. The anti-BCMA scFv of claim 4 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:54.
6. The anti-BCMA scFv of claim 1 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 185, 186, and 187, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 188, 189, and 190, respectively.
7. The anti-BCMA scFv of claim 6 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:66.
8. The anti-BCMA scFv of claim 1 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 119, 120, and 121, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 122, 123, and 124, respectively.
9. The anti-BCMA scFv of claim 8 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:22.
10. The anti-BCMA scFv of claim 1 , wherein the scFv comprises the amino acid sequence set forth in SEQ ID NO:85, SEQ ID NO:88, or SEQ ID NO:77.
11. A nucleic acid molecule that encodes the anti-BCMA scFv of claim 1 .
12. A nucleic acid molecule that encodes an anti-BCMA antibody or an antigen-binding fragment thereof comprising a heavy chain variable region and a light chain variable region, wherein:
(a) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 167, 168, and 169, respectively and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 170, 171, and 172, respectively;
(b) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 185, 186, and 187, respectively and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 188, 189, and 190, respectively; or
(c) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 119, 120, and 121, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 122, 123, and 124, respectively.
13. The nucleic acid molecule of claim 12 , wherein:
(a) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:54;
(b) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:66; or
(c) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:22.
14. The nucleic acid molecule of claim 12 , wherein:
(a) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:54;
(b) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:66; and
(c) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:22.
15. The nucleic acid molecule of claim 12 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 167, 168, and 169, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 170, 171, and 172, respectively.
16. The nucleic acid molecule of claim 15 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:54.
17. The nucleic acid molecule of claim 12 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 185, 186, and 187, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 188, 189, and 190, respectively.
18. The nucleic acid molecule of claim 17 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:66.
19. The nucleic acid molecule of claim 12 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 119, 120, and 121, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 122, 123, and 124, respectively.
20. The nucleic acid molecule of claim 19 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:22.
21. A pharmaceutical composition comprising the anti-BCMA scFv of claim 1 and a pharmaceutically acceptable carrier.
22. A pharmaceutical composition comprising an anti-BCMA antibody or an antigen-binding fragment thereof comprising a heavy chain variable region and a light chain variable region, and a pharmaceutically acceptable carrier, wherein:
(a) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 167, 168, and 169, respectively and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 170, 171, and 172, respectively;
(b) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 185, 186, and 187, respectively and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 188, 189, and 190, respectively; or
(c) the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 119, 120, and 121, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 122, 123, and 124, respectively.
23. The pharmaceutical composition of claim 22 , wherein:
(a) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:54;
(b) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:66; or
(c) the heavy chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises an amino acid sequence that has at least about 90% sequence identity to the amino acid sequence set forth in SEQ ID NO:22.
24. The pharmaceutical composition of claim 22 , wherein:
(a) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:54;
(b) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:66; or
(c) the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:22.
25. The pharmaceutical composition of claim 22 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 167, 168, and 169, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 170, 171, and 172, respectively.
26. The pharmaceutical composition claim 25 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:53, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:54.
27. The pharmaceutical composition of claim 22 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 185, 186, and 187, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 188, 189, and 190, respectively.
28. The pharmaceutical composition of claim 27 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:65, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:66.
29. The pharmaceutical composition of claim 22 , wherein the heavy chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 119, 120, and 121, respectively; and the light chain variable region comprises a CDR1, a CDR2, and a CDR3 sequence set forth in SEQ ID NOs: 122, 123, and 124, respectively.
30. The pharmaceutical composition of claim 29 , wherein the heavy chain variable region comprises the amino acid sequence set forth in SEQ ID NO:21, and the light chain variable region comprises the amino acid sequence set forth in SEQ ID NO:22.