Paper
Development of BCMA-Targeted Bispecific Natural Killer Cell Engagers for Multiple Myeloma Treatment
Published Nov 29, 2024 · DOI · Minchuan Zhang, Han Ping Loh, Shiyi Goh Fang
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Abstract
Background: B-cell maturation antigen (BCMA)-targeted T cell-redirecting immunotherapies, including Chimeric Antigen Receptor (CAR) T-cell therapy and T-cell engagers have demonstrated remarkable success in treating relapsed/refractory (RR) multiple myeloma (MM), a malignancy of plasma cells. However, a significant challenge is the severe side effects associated with T-cell overactivation, leading to cytokine release syndrome and neurotoxicity in MM patients undergoing such therapies. Bispecific NK cell engagers (NKCEs) may offer a promising alternative by redirecting NK cell cytotoxic activity towards tumor cells without triggering cytokine release syndrome. Methods: In this study, we designed a series of BCMA × CD16 NKCEs that simultaneously engage BCMA and CD16 on MM and NK cells, respectively. We evaluated the functionality of these NKCEs in vitro with respect to their molecular design. Results: Our results indicate that the format design of NKCEs influences their functionalities, underscoring the importance of format selection in optimizing NKCE-based therapies for MM. This study provides valuable insights for developing next-generation NKCEs and advancing therapeutic strategies for MM and potentially other malignancies.
Bispecific NK cell engagers show potential in treating multiple myeloma by redirecting NK cell cytotoxic activity towards tumor cells without triggering cytokine release syndrome.
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