Frontiers in Immunology (Feb 2024)

Opportunities and challenges for anti-CD47 antibodies in hematological malignancies

  • Yilan Xu,
  • Panruo Jiang,
  • Zhenyan Xu,
  • Haige Ye

DOI
https://doi.org/10.3389/fimmu.2024.1348852
Journal volume & issue
Vol. 15

Abstract

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CD47 is a cell-surface ligand that is overexpressed in various malignancies and that binds to SIRPα on macrophages to promote tumor cell evasion of phagocytosis. Blocking the CD47-SIRPα axis can increase the phagocytosis of macrophages to exert antitumor effects. CD47-based immunotherapy is a current research focus. The combination of anti-CD47 antibodies with other drugs has shown encouraging response rates in patients with hematological tumors, but side effects also occur. Bispecific antibodies and SIRPα/Fc fusion proteins appear to balance the efficacy and safety of treatment. We review the latest clinical research advances and discuss the opportunities and challenges associated with CD47-based immunotherapy for hematological malignancies.

Keywords