KCNQ1OT1 and esophageal squamous cell carcinoma: To examine whether KCNQ1OT1 promoted the growth and metastasis of ESCC cells through the adsorption of miR-133b, we co-transfected KYSE30 cells with a KCNQ1OT1 overexpression plasmid and miR-133b mimics, and co-transfected KYSE150 with siRNA targeting KCNQ1OT1 and miR-133b inhibitors.