In MM BM, several chemokine ligands engaging in NK cell BM localization show a disbalance, including increased levels of CXCL9 and CXCL10 (CXCR3 ligands) and decreased levels of CXCL12 (CXCR4 ligand) (Figure 5). Here, CXCL12 is linked to Miyoshi myopathy.