To confirm whether the effect of KCNQ1OT1 on renal fibrosis was mediated by miR-124-3p, miR-124-3p inhibitor was co-transfected with KCNQ1OT1 knockdown in HK-2 cells (TGF-β1 + sh-KCNQ1OT1 + miR-124-3p inhibitor). Here, TGFB1 is linked to renal fibrosis.