TNFRSF17 and plasma cell myeloma: Most recently, attesting to the vibrancy of ongoing myeloma research, the first-in-class B-cell maturation antigen (BCMA)-targeted antibody–drug conjugate (belantamab mafodotin) was approved in August 2020 [5], and BCMA-targeted CAR-T cell therapy (idecabtagene vicleucel) in March 2021 [6].