Then, we performed Kaplan–Meier analysis on patients stratified by the expression levels of these 15 differentially expressed genes, and only HSPA7 (Figure 2B) and AC011899.9 (Supplementary Figure S2B) were found to have prognostic significance (P ≤ 0.05) in the 153 TCGA GBM samples based on the median expression levels. This evidence concerns the gene HSPA7 and glioblastoma.