The STAT1 gene was highly expressed in most tumors, including cholangiocarcinoma (CHOL), colon adenocarcinoma (COAD), esophageal carcinoma (ESCA), liver hepatocellular carcinoma (LIHC), pancreatic adenocarcinoma (PAAD), READ, and stomach adenocarcinoma (STAD) (Figure 1A). Here, STAT1 is linked to pancreatic adenocarcinoma.