In contrast, SLC31A1 expression is significantly upregulated in certain tumours such as those of bladder urothelial carcinoma (BLCA), breast invasive carcinoma (BRCA), cervical squamous cell carcinoma, endocervical adenocarcinoma (CESC), oesophageal carcinoma (ESCA), glioblastoma multiforme (GBM), head and neck squamous cell carcinoma (HNSC), and uterine corpus endometrial carcinoma (UCEC). This evidence concerns the gene SLC31A1 and endocervical adenocarcinoma.