These CAR T-cell products used to treat B-cell leukemias and lymphomas (Tisa-cel, Axi-cel, Brexu-cel, and Liso-cel) or MM (Ide-cel and Cilta-cel) bind to the extracellular domain of the CD19 antigen or the B cell maturation antigen (BCMA), respectively. The gene discussed is TNFRSF17; the disease is lymphoma.