Our analysis revealed that the expression of most genes, including DNMT3B, NOP2, DNMT1, ALYREF, NSUN2, NSUN5, TET2, TET3, DNMT3A, TET1, and YBX1 were significantly higher in ESCC tissues than in normal adjacent tissues (Fig. 1A). Here, TET2 is linked to esophageal squamous cell carcinoma.