IGF1 and colon adenocarcinoma: Compared with normal tissues, the expression of BDNF, FOXM1, SALL4, SERPINE1, TRIP6, LIMK1, EEPD1, MYT1, PBK, HMGA2, MAD2L1, and CDC25C was increased, while SYP, GRIN3A, EYA2, NGFR, MAPK10, FHL1, PBX1, STMN2, and IGF1 expression was decreased in COAD (Fig. 1C).