CD8A and glioblastoma: The GEPIA one-way ANOVA analysis also revealed a lower density of B cell naive (p < 1 × 10−15), CD8+ (p = 0.08), CD4+ naive (p < 1 × 10−15), and NK cell (p = 3.97 × 10−9) concomitant with TCGA-GBM high-PTEN mutation profiles, compared to the GTEx samples.