• Bmc Med · Aug 2023

    CAR-T cells targeting CD38 and LMP1 exhibit robust antitumour activity against NK/T cell lymphoma.

    • Hongwen Li, Wenting Song, Jiazhuo Wu, Zhuangzhuang Shi, Yuyang Gao, Jiwei Li, Lijuan Han, Jianxiang Zhang, Zhaoming Li, Yong Li, and Mingzhi Zhang.
    • Department of Oncology, Jianshendong Rd., The First Affiliated Hospital of Zhengzhou University, No. 1, Zhengzhou, 450052, Henan Province, China.
    • Bmc Med. 2023 Aug 30; 21 (1): 330330.

    BackgroundNatural killer/T cell lymphoma (NKTCL) is an aggressive lymphoma with a poor prognosis. Chimeric antigen receptor-transduced T (CAR-T) cell therapy has become a promising immunotherapeutic strategy against haematologic malignancies.MethodsIn this study, four CAR-T cell lines (CD38-CAR, LMP1-CAR, CD38-LMP1 tandem CAR 1 and CD38-LMP1 tandem CAR 2) were generated. The effect of CAR-T cells against NKTCL cells was evaluated both in vitro and in vivo. Expression of T cell activation markers and cytokines produced by CAR-T cells were detected by flow cytometry.ResultsThe four CAR-T cell lines could effectively eliminate malignant NKTCL cells. They could be activated and produce inflammatory cytokines in a target-dependent manner. In vivo tests showed that the CAR-T cells exhibited significant antitumour effects in a xenotransplanted NKTCL mouse model.ConclusionsIn summary, four CAR-T cell lines exhibited significant cytotoxicity against NKTCL cells both in vitro and in vivo. These results indicated the effective therapeutic promise of CD38 and LMP1 CAR-T cells in NKTCL.© 2023. BioMed Central Ltd., part of Springer Nature.

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