For 8 of the above-mentioned genes—MAFF, SLC2A3, HSP90B1, TNFRSF1A, PAK1, DDB2, MDM2, and DKK3—being in the first tertile of gene expression was an independent predictor of better OS and PFS in GBM patients compared to the third tertile. The gene discussed is DKK3; the disease is glioblastoma.