Potential New Cancer Immunotherapy: Anti-CD47-SIRPα Antibodies.

Abstract:

:CD47 belongs to immunoglobulin superfamily and is widely expressed on the surface of cell membrane, while another transmembrane protein SIRPα is restricted to the surface of macrophages, dendritic cells, and nerve cells. As a cell surface receptor and ligand, respectively, CD47 and SIRPα interact to regulate cell migration and phagocytic activity, and maintain immune homeostasis. In recent years, studies have found that immunoglobulin superfamily CD47 is overexpressed widely across tumor types, and CD47 plays an important role in suppressing phagocytes activity through binding to the transmembrane protein SIRPα in phagocytic cells. Therefore, targeting CD47 may be a novel strategy for cancer immunotherapy, and a variety of anti-CD47 antibodies have appeared, such as humanized 5F9 antibody, B6H12 antibody, ZF1 antibody, and so on. This review mainly describes the research history of CD47-SIRPα and focuses on macrophage-mediated CD47-SIRPα immunotherapy of tumors.

journal_name

Onco Targets Ther

journal_title

OncoTargets and therapy

authors

Lu Q,Chen X,Wang S,Lu Y,Yang C,Jiang G

doi

10.2147/OTT.S249822

subject

Has Abstract

pub_date

2020-09-22 00:00:00

pages

9323-9331

issn

1178-6930

pii

249822

journal_volume

13

pub_type

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