Recently, we reported that the tumour suppressor gene N-myc downstream-regulated gene 2 (NDRG2) was significantly downregulated through the accumulation of genetic and epigenetic abnormalities, which is involved in tumour incidence, progression, and metastasis in many types of tumours, including ATL, oral, pancreatic, liver, or other tumours [5,6,7]. The gene discussed is NDRG2; the disease is neoplasm.