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Doxorubicin-conjugated pH-responsive gold nanorods for combined photothermal therapy and chemotherapy of cancer 被引量:7

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摘要 Cancer chemotherapy can be hindered by drug resistance which leads to lower drug efficiency.Here,we have developed a drug delivery system that tethers doxorubicin to the surface of gold nanorods via a pHsensitive linkage(AuNRs@DOX),for a combined photothermal and chemical therapy for cancer.First,AuNRs@DOX is ingested by HepG2 liver cancer cells.After endocytosis,the acidic pH triggers the release of doxorubicin,which leads to chemotherapeutic effects.The gold nanorods are not only carriers of DOX,but also photothermal conversion agents.In the presence of an 808 nm near-infrared laser,AuNRs@DOX significantly enhance the cytotoxicity of doxorubicin via the photothermal effect,which induces elevated apoptosis of hepG2 cancer cells,leading to better therapeutic effects in vitro and in vivo.
出处 《Bioactive Materials》 SCIE 2018年第3期347-354,共8页 生物活性材料(英文)
基金 The authors are grateful to the financial support from the National Key Research and Development Program of China(2016YFB0700804) the National Natural Science Foundation of China(51673171) Zhejiang Provincial Natural Science Foundation of China(LR16E030001,LR15H160001) the Fundamental Research Funds for the Central Universities of China(2018QNA4057) This study is supported in part by Key Laboratory of Reproductive Genetics(Zhejiang University),Ministry of Education,P.R.China/Women’s Reproductive Health Key Laboratory of Zhejiang Province/Uterine Tumors Research Center of Zhejiang Province(ZDFY2017-RG/RH-001).
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