Effects of glutamine synthetase on neovascularization in glioma studied by In vivo MR vessel size imaging

Glioblastoma (GBM) is a highly invasive and vascularized primary malignant brain tumor. Glutamine synthetase (GS) could induce vessel sprouting through the improvement of endothelial cell migration in inflammatory diseases. MR vessel size imaging was supposed to visualize angiogenesis potentially in the brain. In the study we research the role of GS on neovascularization in glioma by in vivo vessel size imaging. Our results indicate that the vascular changes mainly occur in the tumor center and significant decreases of microvascular density values in the MSO group compared to the control. GS inhibitor could be a potential drug to treat glioma.