10-03-2022 дата публикации
Номер: US20220073617A1
Автор:
Bahjat Keith Sadoon,
Borges Luis,
Chen Guodong,
Critton David A.,
Deng Xiaodi,
Deyanova Ekaterina G.,
Huang Richard Y.,
Johnston Robert J.,
Korman Alan J.,
LEMAR Hadia,
NAYEEM Akbar,
Pinckney Jason R.,
Quigley Michael,
RAJPAL ARVIND,
Rakestraw Ginger,
Rankin Andrew,
Sheppard Paul O.,
Su Lin Hui
Принадлежит:
The present application relates to antibodies specifically binding to the V-domain immunoglobulin-containing suppressor of T-cell activation (VISTA) at acidic pH and their use in cancer treatment. In some embodiments, the antibodies bind specifically to human VISTA at acidic pH, but do not significantly bind to human VISTA at neutral or physiological pH. 1171.-. (canceled)172. An isolated antibody that binds specifically to human VISTA (hVISTA) , wherein the antibody comprises a heavy chain variable region (VH) and a light chain variable region (VL) , wherein the VH and VL comprise complementarity determining regions (CDRs) of P1-070976 (SEQ ID Nos: 509-511 and 500-502 , respectively) , P1-070976_H95D (SEQ ID Nos: 512-514 and 500-502 , respectively) , VISTA.4 (SEQ ID Nos: 503-505 and 500-502 , respectively) , P1-065333 (SEQ ID Nos: 506-508 and 500-502 , respectively) , or P1-070976_E97P (SEQ ID Nos: 515-517 and 500-502 , respectively).173. The isolated antibody of claim 172 , wherein the VH comprises an amino acid sequence that is at least 90% identical to the VH of P1-070976 (SEQ ID NO: 474) claim 172 , P1-070976_H95D (SEQ ID NO: 477) claim 172 , VISTA.4 (SEQ ID NO: 492) claim 172 , P1-065333 (SEQ ID NO: 473) claim 172 , or P1-070976_E97P (SEQ ID NO: 478); and/orwherein the VL comprises an amino acid sequence that is at least 90% identical to the VL of P1-070976, P1-070976_H95D, VISTA.4, P1-065333, or P1-070976_E97P (corresponding to SEQ ID NO: 493 or SEQ ID NO: 479).174. The isolated antibody of claim 172 , wherein the VH comprises an amino acid sequence that is at least 95% identical to the VH of P1-070976 (SEQ ID NO: 474) claim 172 , P1-070976_H95D (SEQ ID NO: 477) claim 172 , VISTA.4 (SEQ ID NO: 492) claim 172 , P1-065333 (SEQ ID NO: 473) claim 172 , or P1-070976_E97P (SEQ ID NO: 478); and/orwherein the VL comprises an amino acid sequence that is at least 95% identical to the VL of P1-070976, P1-070976_H95D, VISTA.4, P1-065333, or P1-070976_E97P (corresponding ...
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