The results confirmed that the numbers of methylated CG sites in DPP6 and MTMR7 in tumor tissues were significantly higher than in normal tissues (7.43 ± 6.12 vs. 2.78 ± 2.96, P<0.001; 45.95 ± 16.68 vs. 31.36 ± 16.90, P<0.001; Figure 5A,B). This evidence concerns the gene DPP6 and neoplasm.