Classification of the non-malignant cells (Table S3) showed that the most frequent cells in the glioma microenvironment were myeloid cells (∼57%), divided in macrophages (∼45%) and microglia (∼12%), followed by glial cells (∼19%), vascular cells (∼11%), CD8-positive (CD8+) T cells (∼4%), and a few subpopulations of other cell types including natural killer (NK), neutrophils, dendritic cells, monocytes, mesenchymal stem cells, and others (∼9%). This evidence concerns the gene CD8A and central nervous system cancer.