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Inflammasome

Editor-in-Chief: Pelegrin, Pablo

Ed. by Lopez-Castejón, Gloria

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Emerging Science

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Online
ISSN
2300-102X
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Vitamin C inhibits the activation of the NLRP3 inflammasome by scavenging mitochondrial ROS

Xuesong Sang
  • School of Life Sciences, Shanghai University, Shanghai, 200444, China
/ Hongbin Wang
  • Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
/ Yihui Chen
  • Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
/ Qiuhong Guo
  • Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
/ Ailing Lu
  • Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
/ Xiaoli Zhu
  • School of Life Sciences, Shanghai University, Shanghai, 200444, China
/ Guangxun Meng
  • Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
Published Online: 2016-03-18 | DOI: https://doi.org/10.1515/infl-2016-0001

Abstract

Inflammasomes are intracellular protein complexes that mediate maturation and secretion of the pro-inflammatory cytokines IL-1β and IL-18. Inflammasomes have been connected with various diseases, therefore the regulation of inflammasome activation is important for the development of novel therapies for many inflammatory syndromes. Vitamin C is an essential nutrient and has regulatory effects on immune cells. Here we report that vitamin C has an inhibitory effect on the activation of the NLRP3 inflammasome in vitro and in vivo. Mechanistically, this inhibition is through scavenging mitochondrial ROS but not through NF-κB inhibition. Moreover, specificity tests show that the AIM2 inflammasome and the NLRC4 inflammasome can also be inhibited by vitamin C. Our results have thus identified a new inflammasome regulator and provide therapeutic potential for inflammasome-associated diseases.

Keywords : Vitamin C; Inflammasome; NLRP3; AIM2; NLRC4

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About the article

Received: 2015-11-10

Accepted: 2016-01-10

Published Online: 2016-03-18


Citation Information: Inflammasome, ISSN (Online) 2300-102X, DOI: https://doi.org/10.1515/infl-2016-0001.

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© 2016 Xuesong Sang, et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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