SERPINA1 and colorectal cancer: The Venn diagram shows that SERPINA1 is the only intersection the top 50 differentially expressed genes between GSE49355 and RKO-H/RKO cell groups as well as between Caco2-H/Caco2 cell groups (Supplementary Fig. 2E), suggesting that SERPINA1 plays an important role in colorectal cancer liver metastasis.