KCNQ1OT1 and neoplasm: Additionally, the tumour mass of the nude mice in the HT29/MTX + KCNQ1OT1 group was greater than that of the HT29 group and the HT29/MTX group, whereas the tumour mass in the HT29/MTX + si‐KCNQ1OT1 group was relatively smaller than that of the HT29/MTX group.