Fig. 5

CeO₂NPs exposure inhibited cell migration and invasion of HTR-8/SVneo cells. A Cell migration ability at 6 h, 12 h, and 24 h was assessed by cell scratch assay. B Quantification of the cell wound closure rate of 6 h, 12 h, and 24 h after CeO₂NPs treatments as presented in A. C Cell invasion ability was estimated by transwell assay after different concentrations of CeO₂NPs treatments and images were taken under light microscope (Scale bar = 50 μm). D Quantification of the invading cells, five insights were chosen in each group and values were presented as mean ± SE. *P < 0.05 compared with the control group. #P < 0.05 compared with the CeO₂NPs-treated group, ** means P < 0.01