DNMT1 and nasopharyngeal carcinoma: A clinical trial of azacitidine was carried out in patients with NPC and EBV positive AIDS-associated Burkkit’s lymphoma.35 We found that a natural compound grifolin from albatrellus confluens, can decrease the transcription activity and expression of DNMT1, and restore mitochondrial respiration in LMP1-positive NPC cells (unpublished data).