Bioresponsive mesoporous silica nanoparticles for triggered drug release.
Bioresponsive mesoporous silica nanoparticles for triggered drug release.
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DOI:
10.1021/ja206998x
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发表时间:
2011-12-14
影响因子:
15
通讯作者:
Bhatia, Sangeeta N.
中科院分区:
文献类型:
--
作者:
Singh, Neetu;Karambelkar, Amrita;Gu, Luo;Lin, Kevin;Miller, Jordan S.;Chen, Christopher S.;Sailor, Michael J.;Bhatia, Sangeeta N.
Mesoporous silica nanoparticles (MSNPs) have garnered a great deal of attention as potential carriers for therapeutic payloads. However, achieving triggered drug release from MSNPs in vivo has been challenging. Here, we describe the synthesis of stimulus-responsive polymer-coated MSNPs and the loading of therapeutics into both the core and shell domains. We characterize MSNP drug-eluting properties in vitro and demonstrate that the polymer-coated MSNPs release doxorubicin in response to proteases present at a tumor site in vivo, resulting in cellular apoptosis. These results demonstrate the utility of polymer-coated nanoparticles in specifically delivering an antitumor payload.
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