Overall, by comparing to PA, we identified subtype-specific pathways in neural tumors: PAK signaling (PTPRD and PDGFRB) in GBM, regulation of CFTR activity pathway (PPP2R1A, RABEP1) in MBL, and ERK signaling (IRS4 and ATM) in NBL. The gene discussed is PDGFRB; the disease is nervous system cancer.