Cited by 307Gut microbiota and healthMycorrhizal Fungi and Plant InteractionsAntifungal resistance and susceptibility

Mucosal fungi promote gut barrier function and social behavior via Type 17 immunity

Open access
Leonardi, Irina, Gao, Iris H., Lin, Woan-Yu, Allen, Megan, Li, Xin V., Fiers, William D., De Celie, Meghan Bialt, Putzel, Gregory G. +4 more·2022·Cell

Abstract

Fungal communities (the mycobiota) are an integral part of the gut microbiota, and the disruption of their integrity contributes to local and gut-distal pathologies. Yet, the mechanisms by which intestinal fungi promote homeostasis remain unclear. We characterized the mycobiota biogeography along the gastrointestinal tract and identified a subset of fungi associated with the intestinal mucosa of mice and humans. Mucosa-associated fungi (MAF) reinforced intestinal epithelial function and protected mice against intestinal injury and bacterial infection. Notably, intestinal colonization with a defined consortium of MAF promoted social behavior in mice. The gut-local effects on barrier function were dependent on IL-22 production by CD4+ T helper cells, whereas the effects on social behavior were mediated through IL-17R-dependent signaling in neurons. Thus, the spatial organization of the gut mycobiota is associated with host-protective immunity and epithelial barrier function and might be a driver of the neuroimmune modulation of mouse behavior through complementary Type 17 immune mechanisms.

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Crossref · 10.1016/j.cell.2022.01.017

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  • In multiple autoimmune disease mouse models, including EAE, autoimmune arthritis, and autoimmune renal disease, microbiota-specific induction of intestinal Th17 cells is associated with worsened autoimmune disease at extra-intestinal sites.

    “Indeed, in multiple autoimmune disease mouse models, including EAE, autoimmune arthritis, and autoimmune renal disease, the microbiota-specific induction of intestinal Th17 cells was found to be associated with worsened autoimmune disease at extra-intestinal sites [50–52].”

    From TH17 cell heterogeneity and its role in tissue inflammation (2023) · cites this paper as [52]

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Research works printed but not linked: 1

  1. Li XV, Leonardi I, Putzel GG, Semon A, Fiers WD, Kusakabe T, Doron I, Gao IH, Lin W-Y, Gutierrez-Guerrero A, Bialt-DeCelie M, Yang C, Naglik JR, Hube B, Scherl E, Iliev ID, 2022. Strain-level diversity defines host-mycobiota interactions and inflammation in inflammatory bowel disease. Nature in press.

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Authors
Leonardi, I., Gao, I. H., Lin, W.-Y., Allen, M., Li, X. V., Fiers, W. D., De Celie, M. B., Putzel, G. G., Yantiss, R. K., Johncilla, M., Colak, D., & Iliev, I. D.
Affiliations
Cornell University (US)
Corresponding author
Iliev, Iliyan D.
Venue
Cell
Publisher
Elsevier BV
Published
2022-03
Volume
185
Issue
5
Pages
831-846.e14
ISSN
0092-8674 (ISSN-L)
OpenAlex
W4212813338
Cited by
307
References
109
Citations by year
2026: 50 · 2025: 66 · 2024: 71 · 2023: 78 · 2022: 41
FWCI
20.90
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (R01AI163007, R01DK113136, R01DK121977)
  • Burroughs Wellcome Fund
  • Irma T. Hirschl Trust
  • Leona M. and Harry B. Helmsley Charitable Trust
  • Crohn's and Colitis Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycorrhizal Fungi and Plant Interactions
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
Keywords
gut mycobiome, intestinal barrier function, IL-22, social behavior, neuroimmunomodulation, CD4+ T helper cells, intestinal injury, bacterial infection, intestinal epithelium
MeSH terms
Gastrointestinal Microbiome, Mycobiome, Animals, Fungi, Intestinal Mucosa, Mucous Membrane, Social Behavior, Immunity, Mucosal, Mice, Receptors, Interleukin-17

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