MAPK3 and cancer: Of these, 23 markers (BAD, BAX, CDH1, CDK6, CDKN1A, CDKN1B, CTNNB1, EGF, EGFR, FN1, HRAS, IRS2, KRAS, MAPK3, MDM2, MMP2, PDGFC, PIK3CA, PIK3R3, SMAD4, TGFB1, TGFBR2, TLR2) have been covered in the literature very widely, and multiple publications link these, largely through mutations, to many different cancers, including CRC.