PVRIG的抗体或其抗原结合片段及其应用

By developing antibodies or antigen-binding fragments that specifically recognize PVRIG, the PVRIG/CD112 signaling pathway is blocked, which solves the problem of T cell and NK cell immunosuppression and enhances the efficacy of tumor immunotherapy, especially for cancer patients.

CN115819582BActive Publication Date: 2026-07-17HEFEI TG IMMUNOPHARMA CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI TG IMMUNOPHARMA CO LTD
Filing Date
2021-12-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are unable to effectively block the binding of PVRIG to CD112, leading to immunosuppression of T cells and NK cells and affecting the efficacy of tumor immunotherapy.

Method used

Develop antibodies or antigen-binding fragments that can specifically recognize PVRIG and enhance the killing effect of lymphocytes by blocking the PVRIG/CD112 signaling pathway. This includes the design of specific CDR sequences and amino acid sequences, combined with the application of nucleic acid molecules, expression vectors, and recombinant cells.

Benefits of technology

It enhances the killing function of T cells and NK cells, improves the efficacy of tumor immunotherapy, and significantly inhibits tumor growth, especially when used in combination with other immune checkpoint inhibitors.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种PVRIG的抗体或其抗原结合片段及其应用。抗体或其抗原结合片段包含:选自下列至少之一的CDR序列:轻链可变区CDR序列:SEQ ID NO:1~3、SEQ ID NO:7~9、SEQ ID NO:13~15、SEQ ID NO:19~21;重链可变区CDR序列:SEQ ID NO:4~6、SEQ ID NO:10~12、SEQ ID NO:16~18、SEQ ID NO:22~24。本发明的抗体能够特异性的靶向结合PVRIG受体,阻断CD112和PVRIG的结合。
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