PIK3CA and glioblastoma: Analysis of 32 accessible data from the 97 samples revealed genomic alterations in other GBM-relevant genes besides TP53 (14/32), including PTEN (15/32), RB1 (6/32), CDKN2A/B (21/32), EGFR (20/32), PIK3CA (2/32) and/or AKT3 (2/32) (Supplementary Table 1).