Effects of miR-767 on cellular processes in the NSCLC cell lines A549 and H1299. (A) Expression of miR-767 decreased following miR-767 inhibitor transfection. (B) Cell proliferation was suppressed by the knockdown of miR-767. Downregulation of miR-767 expression in tumor cells led to inhibited cell (C) migration and (D) invasion (magnification, x200). All experiments were performed at least three times. *P<0.05 and **P<0.01. NSCLC, non-small cell lung cancer; miR-767, microRNA-767; OD, optical density; NC, negative control.