SLC60A1 and nasopharyngeal carcinoma: Three CpG sites in MFSD4A (cg03585778, cg03061435, and cg03220945) were significantly hypermethylated in NPC but not in normal nasopharyngeal tissues (Fig. 1B), which was verified in another The Cancer Genome Atlas (TCGA) dataset (GSE62336) (Fig. 1C).