Cell cluster‐specific genes coalesced clusters into five major groups according to canonical marker expressions  displayed in Figure S1A,B (Supporting Information): glioma cells (GFAP and PTPRZ1), T cells (CD3D and CD3E), oligodendrocyte (MOG), macrophages (CD68) and pericyte (RGS5). This evidence concerns the gene PTPRZ1 and central nervous system cancer.