We subjected the genes to univariate Cox regression analysis, and from the intersection of TCGA GBM and CGGA325 GBM Cox results we obtained five stable prognostic genes (Cox-P < 0.05): CD276, interleukin-15 (IL-15), solute carrier family 11 member 1 (SLC11A1), TNF superfamily member 4 (TNFSF4), and triggering receptor expressed on myeloid cells like 2 (TREML2). The gene discussed is IL15; the disease is glioblastoma.