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• W4225281567 abstract "To achieve effective intracellular anticancer drug release for boosted antitumor efficacy, the acidity-responsive nanovehicles for doxorubicin (DOX) delivery were fabricated by tailor-made co-assembly of amphiphilic PEGylated chitosan20k and hydrophobic poly(lactic-co-glycolic acid) (PLGA) segments at pH 8.5. The attained DOX-loaded PEGylated chitosan20k/PLGA nanoparticles (DOX-PC20kPNs) were characterized to have a spherical shape composed of drug-encapsulated chitosan20k/PLGA-constituted solid core surrounded by hydrophilic PEG shells. Compared to non-pH-sensitive DOX-loaded PLGA nanoparticles (DOX-PNs), the DOX-PC20kPNs displayed outstanding colloidal stability under serum-containing condition and tended to swell in weak acidic milieu upon increased protonation of chitosan20k within hybrid cores, thus accelerating drug release. The in vitro cellular uptake and cytotoxicity studies revealed that the DOX-PC20kPNs after being endocytosed by prostate TRAMP-C1 cancer cells rapidly liberated drug, thus promoting drug accumulation in nuclei to enhance anticancer potency. Moreover, the hydrated PEG shells of DOX-PC20kPNs remarkably reduced their uptake by macrophage-like RAW264.7 cells. Importantly, in vivo animal findings showed that the DOX-PC20kPNs exhibited the capability of inhibiting TRAMP-C1 tumor growth superior to free hydrophobic DOX molecules and DOX-PNs, demonstrating the great potential in cancer chemotherapy." @default.
• W4225281567 created "2022-05-04" @default.
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• W4225281567 date "2022-06-01" @default.
• W4225281567 modified "2023-09-30" @default.
• W4225281567 title "Hybrid PEGylated chitosan/PLGA nanoparticles designed as pH-responsive vehicles to promote intracellular drug delivery and cancer chemotherapy" @default.
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• W4225281567 doi "https://doi.org/10.1016/j.ijbiomac.2022.04.209" @default.
• W4225281567 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35513093" @default.
• W4225281567 hasPublicationYear "2022" @default.
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