PCBP2-OT1 and oral cavity squamous cell carcinoma: This is exemplified in various cancers: TUG1 in liver cancer (61); MEG3 and HOTAIRM1 in lung cancer (62, 63); LINC00355 in bladder cancer (50); TUC338 in laryngeal squamous cell carcinoma (52); FTX in oral squamous cell carcinoma (53); and NNT-AS1 in pancreatic cancer (54).