NOS2 and central nervous system cancer: RT-qPCR was conducted to determine the expression of M1 markers II1b, Cd86, and Nos2 as well as M2 markers Cd163, Ym1, and Mrc1, displaying that infection with Lenti-EZH2 in glioma cells induced potent rise in the expression of II1b, Cd86, and Nos2, and marked reduction in the expression of Cd163, Ym1, and Mrc1 in macrophages (Figure 3F).