CD47 and glioblastoma: By using orthotopically xenografted, immunodeficient and syngeneic mouse models with genetically color-coded macrophages (Ccr2RFP) and microglia (Cx3cr1GFP), it was demonstrated that, in addition to macrophages, resident microglia within the TAMs pool are also effector cells of GBM cells phagocytosis in response to anti-CD47 blockade.