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- W3197012022 abstract "Chemodynamic therapy (CDT) that utilizes Fenton-type reactions to convert endogenous hydrogen peroxide (H2O2) into hydroxyl radicals (•OH) is a promising strategy in anticancer treatment, but the overexpression of glutathione (GSH) and limited endogenous H2O2 make the efficiency of CDT unsatisfactory. Here, an intelligent nanoplatform CuO2@mPDA/DOX-HA (CPPDH), which induced the depletion of GSH and the self-supply of H2O2, was proposed. When CPPDH entered tumor cells through the targeting effect of hyaluronic acid (HA), a release of Cu2+ and produced H2O2 were triggered by the acidic environment of lysosomes. Then, the Cu2+ was reduced by GSH to Cu+, and the Cu+ catalyzed H2O2 to produce •OH. The generation of •OH could be distinctly enhanced by the GSH depletion and H2O2 self-sufficiency. Besides, an outstanding photothermal therapy (PTT) effect could be stimulated by NIR irradiation on mesoporous polydopamine (mPDA). Meanwhile, mPDA was an excellent photoacoustic reagent, which could monitor the delivery of nanocomposite materials through photoacoustic (PA) imaging. Moreover, the successful delivery of doxorubicin (DOX) realized the integration of chemotherapy, PTT, and CDT. This strategy could solve the problem of insufficient CDT efficacy caused by the limited H2O2 and overexpression of GSH. This multifunctional nanoplatform may open a broad path for self-boosting CDT and synergistic therapy." @default.
- W3197012022 created "2021-09-13" @default.
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- W3197012022 date "2021-09-09" @default.
- W3197012022 modified "2023-10-11" @default.
- W3197012022 title "H<sub>2</sub>O<sub>2</sub> Self-Supplying and GSH-Depleting Nanoplatform for Chemodynamic Therapy Synergetic Photothermal/Chemotherapy" @default.
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- W3197012022 doi "https://doi.org/10.1021/acsami.1c10341" @default.
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