Fig. 2

COE treatment for 24 h inhibited the adhesion, invasion and migration of (a) U87 and (b) U251 cells in a dose-dependent manner. Cell migration and invasion were assessed after 24 h incubation by transwell assay. The cell adhesion ability was performed by the cell adhesion assay. Top: cresyl violet staining (200× magnification). Bottom: quantification data. Values are expressed as means ± SD of three independent experiments.*P < 0.05, **P < 0.01, as compared with the untreated control