Cited by 936Gut microbiota and healthImmune Response and InflammationT-cell and B-cell Immunology

The intestinal epithelium: central coordinator of mucosal immunity

Allaire, Joannie M., Crowley, Shauna M., Law, Hong T., Chang, Sun-Young, Ko, Hyun-Jeong, Vallance, Bruce A.·2018·Trends in Immunology

Abstract

The gastrointestinal (GI) tract represents a unique challenge to the mammalian immune system. It must tolerate the presence of the luminal microbiota and thus not respond to their products, but still protect the intestinal mucosa from potentially harmful dietary antigens and invading pathogens. The intestinal epithelium, composed of a single layer of cells, is crucial for preserving gut homeostasis and acts both as a physical barrier and as a coordinating hub for immune defense and crosstalk between bacteria and immune cells. We highlight here recent findings regarding communication between microbes and intestinal epithelial cells (IECs), as well as the immune mechanisms employed by distinct IEC subsets to promote homeostasis, emphasizing the central and active role that these cells play in host enteric defense.

Integrity signals

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Crossref · 10.1016/j.it.2018.04.002

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  • In the gut, the GM and its metabolites modulate gastrointestinal functions via effects on intestinal permeability, mucosal immune function, intestinal motility and sensitivity, and the ENS.

    “In the gut, the GM and its metabolites have been shown to modulate gastrointestinal functions via their effects on intestinal permeability (32–35), mucosal immune function (36–38), intestinal motility and sensitivity (39, 40), and the enteric nervous system (ENS) (21, 24, 25, 41).”

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Authors
Allaire, J. M., Crowley, S. M., Law, H. T., Chang, S.-Y., Ko, H.-J., & Vallance, B. A.
Affiliations
  • University of British Columbia (CA)
  • Ajou University (KR)
  • Kangwon National University (KR)
Corresponding author
Vallance, Bruce A.
Venue
Trends in Immunology
Publisher
Elsevier BV
Published
2018-09
Volume
39
Issue
9
Pages
677-696
ISSN
1471-4906 (ISSN-L)
OpenAlex
W2801765418
Cited by
933
References
153
Citations by year
2026: 98 · 2025: 112 · 2024: 148 · 2023: 134 · 2022: 147 · 2021: 139 · 2020: 94 · 2019: 44 · 2018: 15
FWCI
7.15
Type
journal article
Language
en
Update notices
erratum (2019-02-01)
Open access
closed
Locations
  • Trends in Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
intestinal epithelium, mucosal immunity, intestinal homeostasis, intestinal epithelial cells, microbiota-immune crosstalk, intestinal barrier, dietary antigens, pathogen defense, host defense
MeSH terms
Gastrointestinal Microbiome, Animals, Antigens, Cell Communication, Epithelial Cells, Homeostasis, Humans, Immune System, Immunity, Innate, Intestinal Mucosa, Signal Transduction, Immunity, Mucosal, Host-Pathogen Interactions, Dysbiosis

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