Interestingly, adoptive transfer of FcRH5 CAR-T cells from two different donors elicited remarkable tumoricidal effects in the mice bearing subcutaneous NCI-H929BCMA-KO xenografts, contrasting with uncontrolled tumor growth in the mice receiving BCMA CAR-T cells (Supplementary Fig. 8e–g). Here, TNFRSF17 is linked to neoplasm.