Effects of dexamethasone (Dex 1 and 10 μm) and MIF (50 and 250 ng/ml) on U373 MG cells. Cell proliferation (A, n = 8) was evaluated after 48 h using the MTT assay. Migration (B, n = 7) and invasion (C, n = 5) were assessed using the modified Boyden chamber assay. *, p < 0.05; **, p < 0.01; ***, p < 0.005. Results are expressed as mean ± S.E. (error bars).