Fig. 6

FTO is regulated by circGPR137B/miR-4739 axis in HCC. A Schematic representation of the binding sites between miR-4739 and FTO 3’UTR. B Comparison of the luciferase activity of WT or Mut FTO 3’UTR after treatment with miR-4739 mimics in HepG2 and Hep3B cells. C, D RT-qPCR and western blot analysis of the expression of FTO, p21, p27, cleaved caspase-3/− 9, N-cadherin, E-cadherin and vimentin after the transfection with circGPR137B lentiviruses and (or) miR-4739 mimics in HepG2 and Hep3B cells. E, F, G MTT, colony formation and transwell analysis of the cell proliferation, colony number and cell invasion after the transfection with FTO plasmids and (or) miR-4739 mimics in HepG2 and Hep3B cells. Data are the means ± SEM of three experiments. *P < 0.05, **P < 0.01, ***P < 0.001