Cited by 454Gut microbiota and healthInflammatory Bowel DiseaseOral microbiology and periodontitis research

Perturbation of the gut microbiome by Prevotella spp. enhances host susceptibility to mucosal inflammation

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Iljazovic, Aida, Roy, Urmi, Gálvez, Eric J.C., Lesker, Till R., Zhao, Bei, Gronow, Achim, Amend, Lena, Will, Sabine E. +5 more·2021·Mucosal Immunology

Abstract

Diverse microbial signatures within the intestinal microbiota have been associated with intestinal and systemic inflammatory diseases, but whether these candidate microbes actively modulate host phenotypes or passively expand within the altered microbial ecosystem is frequently not known. Here we demonstrate that colonization of mice with a member of the genus Prevotella, which has been previously associated to colitis in mice, exacerbates intestinal inflammation. Our analysis revealed that Prevotella intestinalis alters composition and function of the ecosystem resulting in a reduction of short-chain fatty acids, specifically acetate, and consequently a decrease in intestinal IL-18 levels during steady state. Supplementation of IL-18 to Prevotella-colonized mice was sufficient to reduce intestinal inflammation. Hence, we conclude that intestinal Prevotella colonization results in metabolic changes in the microbiota, which reduce IL-18 production and consequently exacerbate intestinal inflammation, and potential systemic autoimmunity.

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  • Prevotella species associated with detrimental impacts on intestinal barrier integrity are enriched in IBS patients and in models of intestinal inflammation and may promote inflammatory arthritis.

    “Prevotella species associated with detrimental impacts on intestinal barrier integrity are enriched in IBS patients and in models of intestinal inflammation [52, 113] and may promote inflammatory arthritis [3, 104, 126].”

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  1. [72]Ritchie, J. M. in Enterohemorrhagic Escherichia coli and Other Shiga Toxin-Producing E. coli Vol. 2, 175–195 (American Society of Microbiology, 2014).

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Authors
Iljazovic, A., Roy, U., Gálvez, E. J. C., Lesker, T. R., Zhao, B., Gronow, A., Amend, L., Will, S. E., Hofmann, J. D., Pils, M. C., Schmidt-Hohagen, K., Neumann-Schaal, M., & Strowig, T.
Affiliations
  • Helmholtz Centre for Infection Research (DE)
  • Medizinische Hochschule Hannover (DE)
  • Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures (DE)
  • Technische Universität Braunschweig (DE)
Corresponding author
Strowig, Till
Venue
Mucosal Immunology
Publisher
Elsevier BV
Published
2021-01
Volume
14
Issue
1
Pages
113-124
ISSN
1933-0219 (ISSN-L)
OpenAlex
W3027262121
Cited by
454
References
81
Citations by year
2026: 73 · 2025: 69 · 2024: 88 · 2023: 74 · 2022: 84 · 2021: 59 · 2020: 7
FWCI
18.09
Type
journal article
Language
en
Open access
Locations
  • Mucosal Immunology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HZI (Helmholtz Centre for Infection Research) (submittedVersion, cc-by-nc-sa)
Funders
Deutsche Forschungsgemeinschaft (STR-1343/1, EXC2155, STR 1343/2, 39087428)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
Keywords
gut microbiota, intestinal inflammation, colitis, short-chain fatty acids, acetate, IL-18, microbial colonization, systemic autoimmunity, mucosal immunity
MeSH terms
Gastrointestinal Microbiome, Animals, Disease Models, Animal, Disease Susceptibility, Intestinal Mucosa, Cytokines, Bacteroidaceae Infections, Mice, Knockout, Prevotella, Inflammation Mediators, Mice, Mucositis, Host-Pathogen Interactions, Metagenome, Metagenomics, Adaptive Immunity

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