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JOURNAL OF CLINICAL TRANSFUSION AND LABORATORY MEDICINE ›› 2023, Vol. 25 ›› Issue (4): 559-563.DOI: 10.3969/j.issn.1671-2587.2023.04.026

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Monoclonal Anti-CD38 and Anti-47 Interference and Strategies in Compatibility Testing

WANG Fei, CHEN Yaozhen, HU Xingbin, et al   

  1. Xi'an Medical University, Xi'an 710032
  • Received:2023-06-02 Online:2023-08-20 Published:2023-09-18

Abstract: More recently, novel monoclonal antibodies targeting immune checkpoints related signaling pathways have shown promise in the field of cancer immunotherapy. Hu5F9-G4, IBI188, and Daratumumab, designed specifically to target CD47 and CD38, have demonstrated clinical efficacy in patients with lymphoma, multiple myeloma, and other malignancies. Because CD38 and CD47 molecules are expressed not only on tumor cells, but also on red blood cells, anti-CD38 or anti-CD47 antibodies are specifically bound to red blood cells in the blood of patients treated with anti-CD38 and anti-CD47 monoclonal drugs. This leads to false positives in compatibility testing, such as blood typing, cross-matching and irregular antibody screening etc., which poses a risk to transfusion safety. In this paper, the interference problems of anti-CD38 and anti-CD47 on blood transfusion compatibility testing and the existing elimination strategies are described to provide reference for minimizing the impact of anti-CD38 and anti-CD47 on blood transfusion safety.

Key words: Monoclonal antibody drugs, CD38, CD47, Compatibility testing

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