ST7 and cancer: Recently, similar to protein-coding genes, p53-mediated transcription of lncRNAs was shown (8), and multiple p53-regulated lncRNAs (e.g., Loc285194/TUSC7, NEAT1, PICART1, ST7-AS1, TP53TG1) were reported to have tumor-suppressive functions in one or two cancer types (21–26).