Antibody against trimeric TNFα complex
It has been demonstrated that certain compounds bind to TNF and stabilise a conformation of trimeric TNF that binds to the TNF receptor. Antibodies which selectively bind to complexes of such compounds with TNF superfamily members are disclosed. These antibodies may be used to detect further compounds with the same activity, and as target engagement biomarker.
1. An antibody comprising:
a HCDR1 selected from SEQ ID NOs: 4 and 19;
a HCDR2 selected from SEQ ID NOs: 5 and 20; and
a HCDR3 selected from SEQ ID NOs: 6 and 21; and
a LCDR1 of SEQ ID NO: 1;
a LCDR2 selected from SEQ ID NOs: 2 and 17; and
a LCDR3 selected from SEQ ID NOs: 3 and 18.
2. An antibody according to claim 1 , which
(a) is a humanised antibody; or
(b) is a Fab, modified Fab, Fab′, modified Fab′, F(ab′) 2 , Fv, single domain antibody or an scFv.
3. An antibody according to claim 1 , which binds a complex of trimeric TNFα and any one of compounds (1)-(7):
and which optionally has an affinity (K D-ab ) of 1 nM or less for the trimer-compound complex; or an affinity of 200 pM or less.
4. The antibody of claim 1 , wherein the antibody comprises at least one HCDR selected from SEQ ID NOS:4-6 and at least one LCDR selected from SEQ ID NOS: 1-3.
5. The antibody of claim 1 , wherein the antibody comprises at least one HCDR selected from SEQ ID NOS:19-21 and at least one LCDR selected from SEQ ID NOS: 1, 17 and 18.
6. The antibody of claim 1 , wherein the antibody comprises at least two HCDRs selected from SEQ ID NOS:4-6 and at least two LCDRs selected from SEQ ID NOS: 1-3.
7. The antibody of claim 1 , wherein the antibody comprises at least two HCDRs selected from SEQ ID NOS:19-21 and at least two LCDRs selected from SEQ ID NOS: 1, 17 and 18.
8. The antibody of claim 1 , wherein the antibody comprises SEQ ID NO:4 for HCDR1, SEQ ID NO:5 for HCDR2 and SEQ ID NO:6 for HCDR3 and SEQ ID NO:1 for LCDR1, SEQ ID NO:2 for LCDR2 and SEQ ID NO:3 for LCDR3.
9. The antibody of claim 1 , wherein the antibody comprises SEQ ID NO:19 for HCDR1, SEQ ID NO:20 for HCDR2 and SEQ ID NO:21 for HCDR3, and SEQ ID NO:1 for LCDR1, SEQ ID NO:17 for LCDR2 and SEQ ID NO:18 for LCDR3.
10. An antibody comprising (a) a heavy chain variable region (HCVR) comprising SEQ ID NO:8 or 23, or (b) HCDR regions of SEQ ID NO:8 or 23 and remainder of the heavy chain variable region comprises more than 90% identity to SEQ ID NO:8 or 23; and
(c) a light chain variable region (LCVR) comprising SEQ ID NO:7 or 22, or (d) LCDR regions of SEQ ID NO:7 or 22 and remainder of the light chain variable region comprises more than 90% identity to SEQ ID NO:7 or 22.
11. The antibody of claim 10 , wherein the antibody comprises an HCVR comprising SEQ ID NO:8 or HCDR regions of SEQ ID NO:8 and remainder of the heavy chain variable region comprises more than 90% identity to SEQ ID NO:8, and an LCVR comprising SEQ ID NO:7 or LCDR regions of SEQ ID NO:7 and remainder of the light chain variable region comprises more than 90% identity to SEQ ID NO:7.
12. The antibody of claim 10 , wherein the antibody comprises an HCVR comprising SEQ ID NO:23 or HCDR regions of SEQ ID NO:23 and remainder of the heavy chain variable region comprises more than 90% identity to SEQ ID NO:23, and an LCVR comprising SEQ ID NO:22 or LCDR regions of SEQ ID NO:22 and remainder of the light chain variable region comprises more than 90% identity to SEQ ID NO:22.
13. An antibody comprising (a) a heavy chain comprising SEQ ID NO:12 or 13, or (b) HCDR regions of SEQ ID NO:12 or 13 and remainder of the heavy chain comprises more than 90% identity to SEQ ID NO:12 or 13; and
(c) a light chain comprising SEQ ID NO:11, or (d) LCDR regions of SEQ ID NO:11 and remainder of the light chain variable region comprises more than 90% identity to SEQ ID NO:11.
14. An antibody comprising (a) a heavy chain comprising SEQ ID NO:27 or 28, or (b) HCDR regions of SEQ ID NO:27 or 28 and remainder of the heavy chain comprises more than 90% identity to SEQ ID NO:27 or 28; and
(c) a light chain comprising SEQ ID NO:26, or (d) LCDR regions of SEQ ID NO:26 and remainder of the light chain variable region comprises more than 90% identity to SEQ ID NO:26.