Furthermore, the SLC35A2 promoter region was hypomethylated in testicular germ cell tumors (TGCT), BLCA, BRCA, esophageal carcinoma (ESCA), LIHC, prostate adenocarcinoma (PRAD), and stomach adenocarcinoma (STAD) (Supplementary Figure 1). This evidence concerns the gene SLC35A2 and testicular germ cell tumor.