%0 Journal Article
%T Mesenchymal stem cells overexpressing PEDF decrease the angiogenesis of gliomas
%A Qiaoshu Wang
%A Zhaoyun Zhang
%A Tianling Ding
%A Zi Chen
%J Bioscience Reports
%D 2013
%I Portland Press, Biochemical Society
%R 10.1042/bsr20110124
%X The present study is an exploration of a novel strategy to target a therapeutic gene to brain tumour tissues. In the present study, we evaluated the feasibility of using hMSCs (human mesenchymal stem cells) to deliver PEDF (pigment epithelium-derived factor), a potent inhibitor of tumour angiogenesis, in a model of intracranial gliomas. To assess its potential of tracking gliomas, MSCs (mesenchymal stem cells) were injected into the cerebral hemisphere and it showed that MSCs infiltrated into the vessel beds and scattered throughout the tumour. In vitro migration assay showed that the VEGF (vascular endothelial growth factor) enhanced MSC migration. In contrast, the migratory activity of MSCs was significantly inhibited with the presence of PEDF. Systematic delivery of AAV (adeno-associated virus)¨CPEDF to established glioma xenografts resulted in increased apoptosis of gliomas. In addition, MSC¨CPEDF treatment prolonged the survival of mice bearing U87 gliomas. Taken together, these data validate that MSCs¨CPEDF can migrate and deliver PEDF to target glioma cells, which may be a novel and promising therapeutic approach for refractory brain tumour.
%K angiogenesis
%K glioma
%K mesenchymal stem cell
%K pigment epithelium-derived factor
%U http://www.bioscirep.org/bsr/033/e019/bsr033e019.htm