It has previously been shown that cleaved Slamf7 promotes the growth of multiple myeloma (Kikuchi et al., 2020) and that inhibition of SLAMF7 blocks adhesion of multiple myeloma cells to bone marrow stromal cells (Bouchon et al., 2001; Hsi et al., 2008). This evidence concerns the gene SLAMF7 and plasma cell myeloma.