Cited by 610Gut microbiota and healthClostridium difficile and Clostridium perfringens researchProbiotics and Fermented Foods

Intestinal colonization resistance

Open access
Lawley, Trevor D., Walker, Alan W.·2013·Immunology

Abstract

Summary: Dense, complex microbial communities, collectively termed the microbiota, occupy a diverse array of niches along the length of the mammalian intestinal tract. During health and in the absence of antibiotic exposure the microbiota can effectively inhibit colonization and overgrowth by invading microbes such as pathogens. This phenomenon is called ‘colonization resistance’ and is associated with a stable and diverse microbiota in tandem with a controlled lack of inflammation, and involves specific interactions between the mucosal immune system and the microbiota. Here we overview the microbial ecology of the healthy mammalian intestinal tract and highlight the microbe–microbe and microbe–host interactions that promote colonization resistance. Emerging themes highlight immunological ( T helper type 17/regulatory T ‐cell balance), microbiota (diverse and abundant) and metabolic (short‐chain fatty acid) signatures of intestinal health and colonization resistance. Intestinal pathogens use specific virulence factors or exploit antibiotic use to subvert colonization resistance for their own benefit by triggering inflammation to disrupt the harmony of the intestinal ecosystem. A holistic view that incorporates immunological and microbiological facets of the intestinal ecosystem should facilitate the development of immunomodulatory and microbe‐modulatory therapies that promote intestinal homeostasis and colonization resistance.

Integrity signals

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Crossref · 10.1111/j.1365-2567.2012.03616.x

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  • Residents' antimicrobial use can negatively impact their gut, skin, and other body site microbiotas, which normally provide protection against establishment and proliferation of exogenous and potentially pathogenic bacteria, a phenomenon called colonization resistance.

    “Specifically, residents' antimicrobial use can negatively impact their gut, skin, and other body site microbiotas, which normally provide protection against the establishment and proliferation of exogenous and potentially pathogenic bacteria, a phenomenon called colonization resistance 26 .”

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Authors
Lawley, T. D., & Walker, A. W.
Affiliations
Wellcome Sanger Institute (GB)
Corresponding author
Lawley, Trevor D.
Venue
Immunology
Publisher
Wiley
Published
2012-12-13
Volume
138
Issue
1
Pages
1-11
ISSN
  • 0019-2805 (ISSN-L)
  • 1365-2567
OpenAlex
W2012151682
Cited by
610
References
22
Citations by year
2026: 22 · 2025: 49 · 2024: 62 · 2023: 56 · 2022: 54 · 2021: 51 · 2020: 51 · 2019: 54 · 2018: 47 · 2017: 47 · 2016: 27 · 2015: 43 · 2014: 26 · 2013: 18 · 2012: 1
FWCI
2.57
Type
journal article
Language
en
Open access
Locations
  • Immunology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Wellcome Trust (076964, 098051)
  • Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Infectious Diseases › Clostridium difficile and Clostridium perfringens research
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
Keywords
gut microbiota, mucosal immunity, microbial ecology, Th17 cells, regulatory T cells, short-chain fatty acids, intestinal inflammation, pathogen virulence factors, antibiotic use, intestinal homeostasis, immunomodulatory therapy, microbial interactions
MeSH terms
Animals, Humans, Gastrointestinal Tract, Microbial Interactions

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