3.2. IGF2, RETN, EDNRB, C3AR1, CLCF1, NTRK1, OSMR, KCNN4, SLC18A3 and HTR7 Are the Common Prognostic Genes in TCGA and CGGA GBM Cohorts. The gene discussed is EDNRB; the disease is glioblastoma.