VEGFA and central nervous system cancer: Figure 3 shows that glioma C6 CM had a 7.6 fold higher concentrationof VEGF than astrocyte CM and that the amount of VEGF present in glioma C6 CM diminished utilizing aVEGF specific neutralizing antibody. Figure S3 B and figure 3B show adecreased transmigration of ReNcells CX when the anti VEGF antibody was added to glioma C6 CM,confirming the chemo-attractant role of VEGF.