In experiments of cell level, we found that when compared with NCM60, the four colorectal cancer cell lines (HT29, LoVo, HCT116, and SW480) had significant increased expression level of PCGEM1, with the multiples of 2.28, 2.20, 2.51, and 2.28 (Figure 1(a)). Here, PCGEM1 is linked to colorectal cancer.