To determine the immune cell populations in GBM, NKp46 (NKC marker), CD3 (T cell marker), CD20 (B cell marker), CD11b (macrophage marker), CD11c (dendritic cell marker), TMEM119 (transmembrane protein 119; microglia marker), and GAPDH (internal positive control marker) expression was analyzed with GlioVis RNA-seq data. This evidence concerns the gene GAPDH and glioblastoma.