PIK3CB and glioblastoma: To identify the positive correlation between AEBP1 and PIK3CB in in vivo, we downloaded the GBM TCGA dataset42 from cBioportal43 and extracted median expression values of AEBP1 and PIK3CB from PTEN homozygously deleted (n = 12) and non-altered PTEN (n = 154) samples.