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- W4235500281 abstract "Abstract BackgroundInsufficient radiofrequency ablation (IRFA) can promote the local recurrence and distal metastasis of residual hepatocellular carcinoma (HCC), which makes clinical treatment extremely challenging. In this study, the malignant transition of residual tumors after IRFA was explored. Then, arsenic-loaded zeolitic imidazolate framework-8 nanoparticles (As@ZIF-8 NPs) were constructed, and their therapeutic effect on residual tumors was studied. ResultsOur data showed that IRFA can dramatically promote the proliferation, induce the metastasis, activate the epithelial-mesenchymal transition (EMT) and accelerate the angiogenesis of residual tumors. Interestingly, we found, for the first time, that extensive angiogenesis after IRFA can augment the enhanced permeability and retention (EPR) effect and enhance the enrichment of ZIF-8 nanocarriers in residual tumors. Encouraged by this unique finding, we successfully prepared As@ZIF-8 NPs with good biocompatibility and confirmed that they were more effective than free arsenic trioxide (ATO) in sublethal heat-induced cell proliferation suppression, apoptosis induction, cell migration and invasion inhibition, and EMT reversal in vitro . Furthermore, compared with free ATO, As@ZIF-8 NPs exhibited remarkably increased therapeutic effects by repressing residual tumor growth and metastasis in vivo .ConclusionsThis work provides a new paradigm for the treatment of residual HCC after IRFA." @default.
- W4235500281 created "2022-05-12" @default.
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- W4235500281 date "2021-09-02" @default.
- W4235500281 modified "2023-10-16" @default.
- W4235500281 title "Augmented EPR Effect Post IRFA to Enhance the Therapeutic Efficacy of Arsenic Loaded ZIF-8 Nanoparticles on Residual HCC Progression" @default.
- W4235500281 doi "https://doi.org/10.21203/rs.3.rs-855966/v1" @default.
- W4235500281 hasPublicationYear "2021" @default.
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