SDC1 and Miyoshi myopathy: In the present study, miRNA-seq of CD138+ plasma cells unveiled 8 miRNAs (miR-25-3p, miR-223-3p, miR-204-5p, miR-125b-5p, miR-152-3p, let-7e-5p, miR-125a-5p, and miR-150-5p) to be altered between MM vs sMM, R-ISS II/III vs R-ISS I and progressed vs non-progressed MM patients.