SiHa cell growth, cell cycle and invasion following miR-1246 downregulation. (A) miR-1246 expression in SiHa cells following infection with LV-miR-1246-Inh or LV-NC compared with untreated NC. (B) Proliferation of SiHa cells following miR-1246 downregulation. (C) Cell apoptosis detected by Annexin V-PE and 7-AAD labelling and flow cytometry. (D) Matrigel cell invasion assay showing the effects of LV-miR-1246-Inh on cell invasion. Magnification, ×200. (E and F) Cell cycle distribution determined by propidium iodide staining and flow cytometry highlighting the effects of LV-miR-1246-Inh on cell populations in the G1 and S phases. *P<0.05, **P<0.01, ***P<0.001. miR-1246, microRNA-1246; LV, lentivirus; Inh, inhibitor; NC, negative control; PE, phycoerythrin; 7-AAD, 7-aminoactinomycin D; OD, optical density.