Furthermore, Th17 (Tc-II 15) were higher and Th9 (Tc-II 7), CD4+ naïve Tc (Tc-I 8), and KLRG1+CD4−CD8− Tc (DN Tc) (Tc-I 30) were lower in glioblastoma in comparison to controls. This evidence concerns the gene CD4 and glioblastoma.