Cited by 100Neuroinflammation and Neurodegeneration MechanismsGut microbiota and healthTryptophan and brain disorders

The microbiota–microglia axis in central nervous system disorders

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Mossad, Omar, Erny, Daniel·2020·Brain Pathology

Abstract

The innate immune system in the central nervous system (CNS) is mainly represented by specialized tissue‐resident macrophages, called microglia. In the past years, various species‐, host‐ and tissue‐specific as well as environmental factors were recognized that essentially affect microglial properties and functions in the healthy and diseased brain. Host microbiota are mostly residing in the gut and contribute to microglial activation states, for example, via short‐chain fatty acids (SCFAs) or aryl hydrocarbon receptor (AhR) ligands. Thereby, the gut microorganisms are deemed to influence numerous CNS diseases mediated by microglia. In this review, we summarize recent findings of the interaction between the host microbiota and the CNS in health and disease, where we specifically highlight the resident gut microbiota as a crucial environmental factor for microglial function as what we coin “the microbiota‐microglia axis.”

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Authors
Mossad, O., & Erny, D.
Affiliations
University of Freiburg (DE)
Venue
Brain Pathology
Publisher
Wiley
Published
2020-11
Volume
30
Issue
6
Pages
1159-1177
ISSN
  • 1015-6305 (ISSN-L)
  • 1750-3639
OpenAlex
W3093221542
Cited by
98
References
241
Citations by year
2026: 8 · 2025: 19 · 2024: 27 · 2023: 18 · 2022: 17 · 2021: 7 · 2020: 2
FWCI
1.10
Type
journal article
Language
en
Open access
Locations
  • Brain Pathology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft (SFB/TRR167)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
microglia, gut microbiota, central nervous system disorders, short-chain fatty acids, aryl hydrocarbon receptor, microglial activation, innate immunity, neuroinflammation
MeSH terms
Gastrointestinal Microbiome, Animals, Central Nervous System Diseases, Humans, Microglia, Microbiota

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