The results showed that the up-regulated differential genes were mainly centered on the pathways in cancer, hippo signaling pathway, p53 signaling pathway, etc. The down-regulated proteins were mainly concentrated on the glucagon signaling pathway, calcium signaling pathway, phosphatidylinositol signaling system, propanoate metabolism, inositol phosphate metabolism, pyruvate metabolism, other types of O-glycan biosynthesis and so on. This evidence concerns the gene GCG and cancer.