Cited by 354Alzheimer's disease research and treatmentsGut microbiota and healthNeuroinflammation and Neurodegeneration Mechanisms

The DOI matches its Crossref record; 74 of the 75 references it cites were found in a registry or an index.

Microbiota-derived short chain fatty acids modulate microglia and promote Aβ plaque deposition

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Abstract

Previous studies have identified a crucial role of the gut microbiome in modifying Alzheimer’s disease (AD) progression. However, the mechanisms of microbiome–brain interaction in AD were so far unknown. Here, we identify microbiota-derived short chain fatty acids (SCFA) as microbial metabolites which promote Aβ deposition. Germ-free (GF) AD mice exhibit a substantially reduced Aβ plaque load and markedly reduced SCFA plasma concentrations; conversely, SCFA supplementation to GF AD mice increased the Aβ plaque load to levels of conventionally colonized (specific pathogen-free [SPF]) animals and SCFA supplementation to SPF mice even further exacerbated plaque load. This was accompanied by the pronounced alterations in microglial transcriptomic profile, including upregulation of ApoE. Despite increased microglial recruitment to Aβ plaques upon SCFA supplementation, microglia contained less intracellular Aβ. Taken together, our results demonstrate that microbiota-derived SCFA are critical mediators along the gut-brain axis which promote Aβ deposition likely via modulation of the microglial phenotype.

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Crossref · 10.7554/elife.59826

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Metadata

Authors
Colombo, A. V., Sadler, R. K., Llovera, G., Singh, V., Roth, S., Heindl, S., Sebastian Monasor, L., Verhoeven, A., Peters, F., Parhizkar, S., Kamp, F., Gomez de Aguero, M., MacPherson, A. J., Winkler, E., Herms, J., Benakis, C., Dichgans, M., Steiner, H., Giera, M., Haass, C., Tahirovic, S., & Liesz, A.
Affiliations
  • German Center for Neurodegenerative Diseases (DE)
  • Institut für Schlaganfall- und Demenzforschung (DE)
  • German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
  • Leiden University Medical Center (NL)
  • Ludwig-Maximilians-Universität München (DE)
  • Maurice Müller Laboratories (DKF), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Bern, Switzerland
  • University Hospital of Bern (CH)
  • Munich Cluster for Systems Neurology (DE)
Corresponding author
Liesz, Arthur
Venue
eLife
Published
2021-04-13
Volume
10
ISSN
2050-084X (ISSN-L)
OpenAlex
W3153691725
Cited by
354
References
75
Citations by year
2026: 58 · 2025: 82 · 2024: 73 · 2023: 61 · 2022: 61 · 2021: 18
FWCI
33.41
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Leiden Repository (Leiden University) (submittedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • Bern Open Repository and Information System (University of Bern) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Open access LMU (Ludwid Maxmilian's Universitat Munchen) (submittedVersion, cc-by)
  • DZNE Pub (submittedVersion, other-oa)
  • Open Access CRIS of the University of Bern
Funders
  • Vascular Dementia Research Foundation
  • Deutsche Forschungsgemeinschaft (STE847/6-1, HA1737/16-1, EXC 2145 SyNergy - ID 390857198, LI-2534/7-1)
  • H2020 European Research Council (ERC-StG 802305, NMP-2015-686271)
  • Helmholtz Association (Zukunftsthema "Immunology and Inflammation"))
  • NCL Foundation
  • Alzheimer Forschung Initiative (18014)
  • Alzheimer's Association (ADSF-21-831226-C)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
short-chain fatty acids, gut microbiota, Alzheimer's disease, amyloid plaques, microglia, gut-brain axis, germ-free mice, microbial metabolites, apolipoprotein E, microglial phenotype
MeSH terms
Gastrointestinal Microbiome, Alzheimer Disease, Animals, Fatty Acids, Volatile, Female, Male, Specific Pathogen-Free Organisms, Microglia, Mice, Plaque, Amyloid

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