PLXNB2 and glioblastoma: To investigate the impact of Plexin-B2 ablation on GBM infiltration in vivo, we engrafted PLXNB2 KO and control GSCs into the striatum of SCID mice, focusing on the population PLXNB2 KO lines of SD2 and SD3, which represent mesenchymal and proneural GBM subtypes, respectively (see Supplementary Fig. 1b).