As far as microglia and gliomas are specifically concerned, under the influence of glioma M2 microglia release several classes of molecules that foster glioma growth [20], progression and inflammatory activation [21] as opposed classically activated microglia, the M1 phenotype, release inflammatory products, such as nitrites, IL-10 and urea, that may exert detrimental effects on glioma cells. The gene discussed is IL10; the disease is central nervous system cancer.