UNC5A mRNA was highly expressed in colon adenocarcinoma (COAD), head and neck squamous cell carcinoma (HNSC), liver hepatocellular carcinoma (LIHC), kidney renal papillary cell carcinoma (KIRP), cholangiocarcinoma (CHOL), stomach adenocarcinoma (STAD), kidney renal clear cell carcinoma (KIRC), breast invasive carcinoma (BRCA), kidney chromophobe (KICH), and prostate adenocarcinoma (PRAD), whereas its expression was low in uterine corpus endometrial carcinoma (UCEC), thyroid carcinoma (THCA), and lung squamous cell carcinoma (LUSC) (Figure 1A), according to the TIMER data. This evidence concerns the gene UNC5A and cholangiocarcinoma.