Intervention with 5-aza-29-deoxycytidine (5-aza), which inhibits DNMTs, and trichostatin A (TSA), an HDAC inhibitor, the expression of Nrf2 and NQO1 was restored in TRAMP C1 cells, verifying that hypermethylation of five CpG sites at the Nrf2 promoter was associated with mouse prostate cancer 55. This evidence concerns the gene NFE2L2 and prostate cancer.