MTA1 and neoplasm: MTA1 is upregulated in diverse human malignancies, including carcinoma of the stomach, esophagus, prostate, breast, liver, oral cavity, lung and colorectum, and is associated with tumor progression, lymph node metastasis and poor prognosis [11-20]; however, little is known about the expression level and prognostic value of MTA1 in NPC.