KCNQ1OT1 and lung adenocarcinoma: The results from the TIMER database showed that lncRNA KCNQ1OT1 was significantly more highly expressed in colon adenocarcinoma (COAD), head and neck squamous cell carcinoma (HNSC), kidney renal clear cell carcinoma (KIRC), liver hepatocellular carcinoma (LIHC), lung adenocarcinoma (LUAD), prostate adenocarcinoma (PRAD), rectum adenocarcinoma (READ), lung adenocarcinoma, and stomach adenocarcinoma (STAD) than in normal tissues (Fig. 3A).