Cited by 301Gut microbiota and healthT-cell and B-cell ImmunologyImmune responses and vaccinations

Imprinting of the immune system by the microbiota early in life

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Al Nabhani, Ziad, Eberl, Gérard·2020·Mucosal Immunology

Abstract

The ontogeny and maturation of the immune system is modulated by the microbiota. During fetal life, the mother's microbiota produces compounds that are transferred to the fetus and offspring, and enhance the generation of innate immune cells. After birth, the colonizing microbiota induces the development of intestinal lymphoid tissues and maturation of myeloid and lymphoid cells, and imprints the immune system with a reactivity level that persists long after weaning into adulthood. When the cross-talk between host and microbiota is perturbed early in life, a pathological imprinting may develop that is characterized by excessive immune reactivity in adulthood, which translates into increased susceptibility to inflammatory pathologies. In this review, we discuss the recent data that demonstrate the existence of a time window of opportunity early in life during which mice and human have to be exposed to microbiota in order to develop a balanced immune system. We also discuss the factors involved in imprinting, such as the microbiota, immune cells and stromal cells, as well as the nature of imprinting.

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  • In the cross-talk between mucosal immunity and gut microbes, there are defined periods of plasticity, such as during weaning and neonatal periods when host lymphocytes and gut bacteria expand and colonize the intestinal mucosa.

    “In the cross-talk between mucosal immunity and gut microbes, there are defined periods of plasticity, such as during weaning and neonatal periods when host lymphocytes and gut bacteria expand and colonize the intestinal mucosa. 80”

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Authors
Al Nabhani, Z., & Eberl, G.
Affiliations
Inserm (FR)
Corresponding author
Eberl, Gérard
Venue
Mucosal Immunology
Publisher
Elsevier BV
Published
2020-03
Volume
13
Issue
2
Pages
183-189
ISSN
1933-0219 (ISSN-L)
OpenAlex
W3001781379
Cited by
301
References
90
Citations by year
2026: 41 · 2025: 45 · 2024: 39 · 2023: 51 · 2022: 45 · 2021: 66 · 2020: 14
FWCI
4.21
Type
journal article
Language
en
Open access
Locations
  • Mucosal Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Kenneth Rainin Foundation
  • Institut National de la Santé et de la Recherche Médicale
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
gut microbiota, early life, innate immune cells, intestinal lymphoid tissue, myeloid cell maturation, immunoreactivity, stromal cells, immune ontogeny
MeSH terms
Gastrointestinal Microbiome, Host Microbial Interactions, Adult, Animals, Female, Homeostasis, Humans, Immune System, Inflammation, Lymphocytes, Pregnancy, Mice

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