Here we detected high levels of BCMA expression in established human MM cell lines including KMS-11 (82%), KMS-18 (100%), OPM-2 (97%), and U266 (91%), while the acute myelogenous leukemia cell line KG-1 was BCMA-negative (Fig 2A). This evidence concerns the gene TNFRSF17 and Miyoshi myopathy.