PGPEP1 and glioblastoma: Six prognostic DESs were shared by male and female GBM, including chr1:45509673+ (MMACHC), chr7:44832906- (H2AFV), chr8:56069413- (RPS20), chrX:119538709- (STEEP1), chr19:13773078+ (MRI1), and chr19:18366951+ (PGPEP1).