作者
Ze-Yong Li, Jing-Jing Hu, Qi Xu, Si Chen, Hui-Zhen Jia, Yun-Xia Sun, Ren-Xi Zhuo, Xian-Zheng Zhang
发表日期
2015
期刊
Journal of materials chemistry B
卷号
3
期号
1
页码范围
39-44
出版商
Royal Society of Chemistry
简介
In this paper, an intracellular glutathione (GSH) responsive mesoporous silica nanoparticle (MSN-S-S-RGD) was developed as a drug nanocarrier by immobilizing the gatekeeper (RGD containing peptide) onto MSNs using disulfide bonds. The antitumor drug, DOX was loaded onto the porous structure of the MSNs and the DOX@MSN-S-S-RGD system has been proved to be an effective nanocarrier. It was determined that most of the drug could be entrapped with only a slight leakage. After being accumulated in tumor cells via the receptor-mediated endocytosis, the surface peptide layer of DOX@MSN-S-S-RGD was removed to trigger the release of the entrapped drug to kill the tumor cell due to the cleavage of the disulfide bonds by intracellular GSH.
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ZY Li, JJ Hu, Q Xu, S Chen, HZ Jia, YX Sun, RX Zhuo… - Journal of materials chemistry B, 2015