Fig. 3

KCNQ1OT1 directly targeted miR-129-5p in NSCLC cells. a The putative binding sites of KCNQ1OT1 and miR-129-5p were shown. b, c Luciferase activity was examined in A549 and H460 cells co-transfected with wt-KCNQ1OT1 or mut-KCNQ1OT1 and miR-129-5p mimic or NC mimic. d RNA pull-down assay was performed to confirm the relationship between KCNQ1OT1 and miR-129-5p. e Transfection efficiency was measured using qRT-PCR in A549 and H460 cells introduced with pcDNA-NC or pcDNA-KCNQ1OT1. f, g A549 and H460 cells were transfected with pcDNA-NC, pcDNA-KCNQ1OT1, si-NC or si-KCNQ1OT1, and miR-129-5p expression was detected by qRT-PCR after transfection. h MiR-129-5p expression in normal tissues and NSCLC tissues was examined by qRT-PCR. i The correlation between KCNQ1OT1 and miR-129-5p was exhibited. j MiR-129-5p expression in BEAS-2B cells and NSCLC cell lines (A549 and H460) was detected by qRT-PCR. k MiR-129-5p level was examined by qRT-PCR in A549 and H460 cells transfected with NC mimic, miR-129-5 mimic, NC inhibitor or miR-129-5 inhibitor. *P < 0.05