described decreased chemotaxis of type 1 CD8+ T cells in IDH‐mutant glioma, due to downregulation of STAT1, a regulator of CXCL10, which is a chemokine of type 1 CD8+ T cells, that predominantly secretes interferon (IFN)‐γ [63]. Here, CXCL10 is linked to central nervous system cancer.