TNFSF13B and Miyoshi myopathy: Other cytokines include the B-cell activating factor (BAFF) and a proliferation inducing ligand (APRIL), both of which promote MM proliferation via MAPK and NFκB, TNFα, insulin-like growth factor (IGF), hepatocyte growth factor (HGF), basic fibroblast growth factor (bFGF), and vascular endothelial growth factor (VEGF) [7].