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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202308254
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|a eng
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|a Dong, Ziliang
|e verfasserin
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|a Tumor Microenvironment Modulating CaCO3 -Based Colloidosomal Microreactors Can Generally Reinforce Cancer Immunotherapy
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|c 2024
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|a Text
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|a Date Completed 04.03.2024
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|a Date Revised 04.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Tumor hypoxia and acidity, two general features of solid tumors, are known to have negative effect on cancer immunotherapy by directly causing dysfunction of effector immune cells and promoting suppressive immune cells inside tumors. Herein, a multifunctional colloidosomal microreactor is constructed by encapsulating catalase within calcium carbonate (CaCO3 ) nanoparticle-assembled colloidosomes (abbreviated as CaP CSs) via the classic double emulsion method. The yielded CCaP CSs exhibit well-retained proton-scavenging and hydrogen peroxide decomposition performances and can thus neutralize tumor acidity, attenuate tumor hypoxia, and suppress lactate production upon intratumoral administration. Consequently, CCaP CSs treatment can activate potent antitumor immunity and thus significantly enhance the therapeutic potency of coloaded anti-programmed death-1 (anti-PD-1) antibodies in both murine subcutaneous CT26 and orthotopic 4T1 tumor xenografts. In addition, such CCaP CSs treatment also markedly reinforces the therapeutic potency of epidermal growth factor receptor expressing chimeric antigen receptor T (EGFR-CAR-T) cells toward a human triple-negative breast cancer xenograft by promoting their tumor infiltration and effector cytokine secretion. Therefore, this study highlights that chemical modulation of tumor acidity and hypoxia can collectively reverse tumor immunosuppression and thus significantly potentiate both immune checkpoint blockade and CAR-T cell immunotherapies toward solid tumors
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|a Journal Article
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|a CAR-T cell therapy
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|a CaCO3 based colloidosomal microreactors
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|a ICB immunotherapy
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|a acidity neutralization
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|a hypoxia attenuation
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|a Lactic Acid
|2 NLM
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| 700 |
1 |
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|a Liu, Yan
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| 700 |
1 |
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|a Wang, Chunjie
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|4 aut
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| 700 |
1 |
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|a Hao, Yu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Qin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Zhijuan
|e verfasserin
|4 aut
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| 700 |
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|a Li, Quguang
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|a Feng, Liangzhu
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|a Liu, Zhuang
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|t Advanced materials (Deerfield Beach, Fla.)
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|g 36(2024), 9 vom: 01. März, Seite e2308254
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|u http://dx.doi.org/10.1002/adma.202308254
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