Immunosuppressive cytokines such as Transforming growth factor-β2 (TGF-β2), Prostaglandin E2 (PGE2), and Interleukine-10 (IL-10) within glioblastoma limit phagocytic activity and induce apoptosis in activated lymphocytes [54,61,62]. The gene discussed is IL10; the disease is glioblastoma.