PDGFRA and glioblastoma: Interestingly, we found that p53ΔNNSCs were associated most closely with the proneural subtype when comparing the microarray expression profile from the murine NSCs to that of publically available human GBM samples from TCGA (Verhaak et al., 2010) (Figure 3—figure supplement 1), which is in agreement with elevated Pdgfra mRNA as well as protein levels (Figure 3D).