MSI2 and neoplasm: The RBP Musashi-2, a member of the Musashi gene family, has been characterized as an oncoprotein in a variety of tumors, and its aberrant expression is closely associated with tumor occurrence and progression (including in breast, lung, pancreatic, liver, prostate and colorectal cancers) (19–24) mediated by its participation in the regulation of various molecules and signaling pathways (25).