Considering the reported anti-myeloma effects of anti-BCMA CAR-T cells [7, 8] and abundant expression of BCMA on monoclonal plasma cells (98.6% as revealed by flow cytometry) (Fig. 1c) and elevated serum BCMA (Fig. 2b) in this patient, we encouraged her to participate in a clinical trial involving anti-BCMA CAR-T treatment, to which she agreed. This evidence concerns the gene TNFRSF17 and plasma cell myeloma.