BTN2A1: A Novel Target to Boost Tumor Killing Capacity of Human γδ T Cells.

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γδ T cells have recently raised great interest as effector cells in cancer immunotherapy because of their HLA-independent mode of action and their broad tumor reactivity. To translate the application of γδ T cells into clinically effective immunotherapies, specific tumor targeting and/or boosting of γδ T-cell activation in vivo seem to be a critical step. In this issue, Le Floch and colleagues report a new strategy for enabling γδ T cells to be specifically activated to kill acute lymphoblastic leukemia cells and solid tumor cells using agonistic BTN2A1 antibodies. See related article by Le Floch et al., p. 1677.