FUT8 protein expression was evaluated utilizing samples from cancer patients within the HPA database, and was highly expressed across a range of cancers including thyroid cancer, colorectal cancer, stomach cancer, pancreatic cancer, urothelial cancer, testis cancer, breast cancer, endometrial cancer, melanoma, ovarian cancer, prostate cancer, liver cancer, glioma, carcinoid tumors, lung cancer, and others (Fig 1b). This evidence concerns the gene FUT8 and carcinoid tumor.