Figure 3. Survival analysis and expression analysis of the DEGs. (A–C) Survival analysis of DEGs in colorectal cancer by using GEPIA database, and only APOC1, CYP2E1 and HPR were significant in term of prognosis. (D–F) Expression analysis of the three genes (APOC1, CYP2E1 and HPR) between normal tissues, primary tumor tissues and liver metastatic tumor tissues in CRLM by using GSE41258 datasets. (G–I) Expression analysis grouped by tumor stage of the three genes (APOC1, CYP2E1 and HPR) in CRLM by using GSE41258 datasets.