Cited by 227Neuroinflammation and Neurodegeneration MechanismsInflammasome and immune disordersNF-κB Signaling Pathways

A20 critically controls microglia activation and inhibits inflammasome-dependent neuroinflammation

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Voet, Sofie, Mc Guire, Conor, Hagemeyer, Nora, Martens, Arne, Schroeder, Anna, Wieghofer, Peter, Daems, Carmen, Staszewski, Ori +21 more·2018·Nature Communications

Abstract

Microglia, the mononuclear phagocytes of the central nervous system (CNS), are important for the maintenance of CNS homeostasis, but also critically contribute to CNS pathology. Here we demonstrate that the nuclear factor kappa B (NF-κB) regulatory protein A20 is crucial in regulating microglia activation during CNS homeostasis and pathology. In mice, deletion of A20 in microglia increases microglial cell number and affects microglial regulation of neuronal synaptic function. Administration of a sublethal dose of lipopolysaccharide induces massive microglia activation, neuroinflammation, and lethality in mice with microglia-confined A20 deficiency. Microglia A20 deficiency also exacerbates multiple sclerosis (MS)-like disease, due to hyperactivation of the Nlrp3 inflammasome leading to enhanced interleukin-1β secretion and CNS inflammation. Finally, we confirm a Nlrp3 inflammasome signature and IL-1β expression in brain and cerebrospinal fluid from MS patients. Collectively, these data reveal a critical role for A20 in the control of microglia activation and neuroinflammation.

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  • In experimental autoimmune encephalomyelitis, microglial NLRP3 inflammasome activation resulted in pyroptosis of oligodendrocytes, promoted inflammation and induced demyelination.

    “In a commonly employed mouse model for MS, experimental autoimmune encephalomyelitis, microglial NLRP3 inflammasome activation resulted in pyroptosis of oligodendrocytes, promoted inflammation and induced demyelination [194, 195].”

    From Microglial function, INPP5D/SHIP1 signaling, and NLRP3 inflammasome activation: implications for Alzheimer’s disease (2023) · cites this paper as [195]

    The Results section on EAE reports that mice lacking A20 in microglia had greater inflammation and demyelination, and that blocking the microglial inflammasome pathway reduced disease severity. But the Results section on Nlrp3 hyperactivation measures pyroptosis in cultured microglia, not oligodendrocytes. The source does not establish oligodendrocyte pyroptosis as the mechanism of demyelination. (LLM, conf=0.91)

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  1. [38]Gris D NLRP3 plays a critical role in the development of experimental autoimmune encephalomyelitis by mediating Th1 and Th17 responses J. Immunol. 2017 185 974 981 10.4049/jimmunol.0904145 PMC3593010 20574004 · DOI · Paper page

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Authors
Voet, S., Mc Guire, C., Hagemeyer, N., Martens, A., Schroeder, A., Wieghofer, P., Daems, C., Staszewski, O., Vande Walle, L., Jordao, M. J. C., Sze, M., Vikkula, H.-K., Demeestere, D., Van Imschoot, G., Scott, C. L., Hoste, E., Gonçalves, A., Guilliams, M., Lippens, S., Libert, C., Vandenbroucke, R. E., Kim, K.-W., Jung, S., Callaerts-Vegh, Z., Callaerts, P., de Wit, J., Lamkanfi, M., Prinz, M., & van Loo, G.
Affiliations
  • Ghent University (BE)
  • University of Freiburg (DE)
  • VIB-KU Leuven Center for Brain & Disease Research (BE)
  • KU Leuven (BE)
  • Weizmann Institute of Science (IL)
Venue
Nature Communications
Published
2018-05-23
Volume
9
Issue
1
Pages
2036-2036
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2804482952
Cited by
227
References
62
Citations by year
2026: 15 · 2025: 21 · 2024: 28 · 2023: 34 · 2022: 39 · 2021: 30 · 2020: 33 · 2019: 23 · 2018: 3
FWCI
10.01
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion, cc-by)
  • Lirias (KU Leuven) (submittedVersion, public-domain)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • OPUS (Augsburg University) (submittedVersion, cc-by)
Funders
  • Deutsche Forschungsgemeinschaft (SFB 992, SFB 1140, SFB/ TRR 167, TRR 167)
  • Bundesministerium für Bildung und Forschung
  • Fonds Wetenschappelijk Onderzoek
  • Universiteit Gent
  • Fondation Charcot
  • Kom op tegen Kanker
  • Fondation contre le Cancer
  • H2020 European Research Council (683144)
  • FP7 Ideas: European Research Council (281600, 311083)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
A20, microglial activation, neuroinflammation, NLRP3 inflammasome, IL-1β, NF-κB regulation, multiple sclerosis, lipopolysaccharide, CNS homeostasis, synaptic function, cerebrospinal fluid
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Tumor Necrosis Factor alpha-Induced Protein 3, Adult, Aged, Aged, 80 and over, Animals, Brain, Disease Models, Animal, Female, Humans, Lipopolysaccharides, Male, Middle Aged, Multiple Sclerosis, Signal Transduction, Microglia, Mice, Interleukin-1beta, Inflammasomes

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