pH-sensitive cationic nanoparticles for endosomal cell-free DNA scavenging against acute inflammation
Copyright © 2024 Elsevier B.V. All rights reserved..
Cell-free DNA (cfDNA) released from dead cells could be a player in some autoimmune disorders by activating Toll-like receptor 9 (TLR9) and inducing proinflammatory cytokines. Cationic nanoparticles (cNPs) address cfDNA clearance, yet challenges persist, including toxicity, low specificity and ineffectiveness against endocytosed cfDNA. This study introduced pH-sensitive cNPs, reducing off-target effects and binding cfDNA at inflammatory sites. This unique approach inhibits the TLR9 pathway, offering a novel strategy for inflammation modulation. Synthesized cNPs, with distinct cationic moieties, exhibit varied pKa values, enhancing cfDNA binding. Comprehensive studies elucidate the mechanism, demonstrating minimal extracellular binding, enhanced endosomal DNA binding, and optimal tumor necrosis factor-α suppression. In a traumatic brain injury mice model, pH-sensitive cNPs effectively suppress inflammatory cytokines, highlighting their potential in acute inflammation regulation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:369 |
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| Enthalten in: |
Journal of controlled release : official journal of the Controlled Release Society - 369(2024) vom: 25. März, Seite 88-100 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Feng, Yilin [VerfasserIn] |
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| Links: |
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| Themen: |
Cationic nanoparticles |
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| Anmerkungen: |
Date Revised 26.03.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1016/j.jconrel.2024.03.003 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM369613570 |
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| 520 | |a Copyright © 2024 Elsevier B.V. All rights reserved. | ||
| 520 | |a Cell-free DNA (cfDNA) released from dead cells could be a player in some autoimmune disorders by activating Toll-like receptor 9 (TLR9) and inducing proinflammatory cytokines. Cationic nanoparticles (cNPs) address cfDNA clearance, yet challenges persist, including toxicity, low specificity and ineffectiveness against endocytosed cfDNA. This study introduced pH-sensitive cNPs, reducing off-target effects and binding cfDNA at inflammatory sites. This unique approach inhibits the TLR9 pathway, offering a novel strategy for inflammation modulation. Synthesized cNPs, with distinct cationic moieties, exhibit varied pKa values, enhancing cfDNA binding. Comprehensive studies elucidate the mechanism, demonstrating minimal extracellular binding, enhanced endosomal DNA binding, and optimal tumor necrosis factor-α suppression. In a traumatic brain injury mice model, pH-sensitive cNPs effectively suppress inflammatory cytokines, highlighting their potential in acute inflammation regulation | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cationic nanoparticles | |
| 650 | 4 | |a Inflammation regulation | |
| 650 | 4 | |a Polycaprolactone | |
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| 700 | 1 | |a Wei, Cong |e verfasserin |4 aut | |
| 700 | 1 | |a Gu, Yanrong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Hong |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Lixin |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Yongming |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Tianyu |e verfasserin |4 aut | |
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