TP53 and neoplasm: The Cancer Genome Atlas (TGCA) [59] identified four molecular subtypes of OG cancer—EBV-positive, microsatellite instability (MSI), genomic stable and chromosomal unstable tumour subtypes—and the Asian Cancer Research Group (ACRG) identified MSI, microsatellite stable/epithelial to mesenchymal transition (MSS/EMT), MSS/TP53+ and MSS/TP53− as subtypes with prognostic values [60].