BMAL1 and nasopharyngeal carcinoma: In our previous study, we identified that Aryl Hydrocarbon Receptor Nuclear Translocator-Like (ARNTL) is one of the top-ranked hypermethylated genes between 24 normal nasopharynx epithelium and 24 NPC tissues by Illumina Human Methylation 450 K Beadchips (GSE52068) [12].