PSMA8 and glioblastoma: According to the correlation analysis results, the model includes age, gender, log2 (FPKM + 1) gene expression level of OSMR, STAT3, MYD88, IL6ST, and SOCS3 for C1-GBM and ABRAXAS1, UBE2V2, PSMF1, PSMA8, and KAT5 for C2-GBM.