CHEK2 and neoplasm: Specifically, the expressions of TUBB2B, XDH, MMP9, SORD, CHEK2, MIF, PLK1, CCNA2, KIF11, AURKA, CHEK1, AURKB, TOP2A, MELK, NQO1, PTGES, CA12, PDK1, and CA9 were increased in the tumor group.