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. Here, PLK1 is linked to neoplasm.