DNMT1 and hepatocellular carcinoma: Assistant with the expression in TCGA, the expression of ALYREF, DNMT1, DNMT3A, DNMT3B, NOP2, NSUN3, NSUN4, NSUN5, NSUN6, NSUN7, and TET2 were higher in HCC cell line Huh7 than in normal cell line L02.