Figure 1.

FCS stimulation of U87 glioma cell migration. Transmigration through DiffQuik^®-stained 8 μm pore size polycarbonate membranes coated with Vn, collagen I and IV with and without serum stimulation (magnification, x20). Induction of transmigration by a 10% FCS gradient displaying a 2.91-fold increase on Vn (p < 0.0001), a 2.90-fold increase on collagen I (p = 0.0004), and a 2.89-fold increase on collagen IV (p < 0.0001). Display of mean value ± standard deviation (SD); statistical analysis using Student's t-test (*, indicating significance p < 0.05)