Fig. 7

NAC induces apoptosis and inhibits proliferation of U87 cells in vivo. a Tumor growth curves for mice injected with PBS, NAC, BSO and NAC + BSO. The changes of tumor volumes are shown in the left panel and the dissected tumors in the right panel (n = 3, * P < 0.05 compared with PBS control group). b The representative histological examinations of the dissected tumors using Ki-67 staining, HE staining and TUNEL assay. Scale bar: 100 μm. c Notch2 and Hes1 were evaluated by western blot. All images shown are representative of at least three independent experiments