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Development And Characterization Of VEGF165-Chitosan Nanoparticles For The Treatment Of Radiation-Induced Skin Injury In Rats

Daojiang Yu, S. Li, S. Wang, Xiujie Li, M. Zhu, S. Huang, L. Sun, Yongsheng Zhang, Y. Liu, Shouli Wang
Published 2016 · Biology, Medicine

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Radiation-induced skin injury, which remains a serious concern in radiation therapy, is currently believed to be the result of vascular endothelial cell injury and apoptosis. Here, we established a model of acute radiation-induced skin injury and compared the effect of different vascular growth factors on skin healing by observing the changes of microcirculation and cell apoptosis. Vascular endothelial growth factor (VEGF) was more effective at inhibiting apoptosis and preventing injury progression than other factors. A new strategy for improving the bioavailability of vascular growth factors was developed by loading VEGF with chitosan nanoparticles. The VEGF-chitosan nanoparticles showed a protective effect on vascular endothelial cells, improved the local microcirculation, and delayed the development of radioactive skin damage.
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