At the 7th day after anti-BCMA CAR-T cell infusion, we noted a striking decrease in serum monoclonal protein levels (Fig. 2B); 1 month later, multicolor flow cytometry did not detect MM cells for the plasma cell marker CD38 staining in the bone marrow (Fig. 2D), which confirmed a stringent CR. This evidence concerns the gene TNFRSF17 and Miyoshi myopathy.