Cited by 4,554Gut microbiota and healthT-cell and B-cell ImmunologyPsoriasis: Treatment and Pathogenesis

Induction of Intestinal Th17 Cells by Segmented Filamentous Bacteria

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Ivanov, Ivaylo I., Atarashi, Koji, Manel, Nicolas, Brodie, Eoin L., Shima, Tatsuichiro, Karaoz, Ulas, Wei, Dongguang, Goldfarb, Katherine C. +9 more·2009·Cell

Abstract

The gastrointestinal tract of mammals is inhabited by hundreds of distinct species of commensal microorganisms that exist in a mutualistic relationship with the host. How commensal microbiota influence the host immune system is poorly understood. We show here that colonization of the small intestine of mice with a single commensal microbe, segmented filamentous bacterium (SFB), is sufficient to induce the appearance of CD4(+) T helper cells that produce IL-17 and IL-22 (Th17 cells) in the lamina propria. SFB adhere tightly to the surface of epithelial cells in the terminal ileum of mice with Th17 cells but are absent from mice that have few Th17 cells. Colonization with SFB was correlated with increased expression of genes associated with inflammation and antimicrobial defenses and resulted in enhanced resistance to the intestinal pathogen Citrobacter rodentium. Thus, manipulation of this commensal-regulated pathway may provide new opportunities for enhancing mucosal immunity and treating autoimmune disease.

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Crossref · 10.1016/j.cell.2009.09.033

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  • Segmented filamentous bacteria fail to induce MAIT cells in GF mice.

    “Segmented filamentous bacteria (SFB), a known inducer of Th17 cells that lacks riboflavin synthesis enzymes (Figs. 1J & S1G) (29, 30), also failed to induce MAIT cells (Fig. 1K).”
  • Th17 cells mediate tissue homeostasis by protecting mucosal barriers, influencing commensal microbiota, and modulating epithelial permeability.

    “Th17 cells, besides being highly pathogenic and able to induce autoimmunity, have also been implicated in mediating tissue homeostasis, regulating tissue integrity by protecting mucosal barriers from potentially invasive microbes”

    From TH17 cell heterogeneity and its role in tissue inflammation (2023) · cites this paper as [47]

  • Th17 cells play an important role in tissue homeostasis, especially in the intestinal mucosa.

    “Th17 cells have been found to play an important role in tissue homeostasis, especially in the intestinal mucosa.”

    From TH17 cell heterogeneity and its role in tissue inflammation (2023) · cites this paper as [47]

  • Segmented filamentous bacteria induce TH17 cells in the murine small intestine but do not produce high levels of ATP.

    “segmented filamentous bacteria (SFB), which have been shown to induce TH17 cells in the lamina propria of the murine small intestine, do not produce high levels of ATP (Ivanov et al., 2009).”
  • Th17 cells are absent in GF mice and are inducible upon microbial colonization, most notably with segmented filamentous bacteria, but also other commensal bacteria.

    “Th17 cells are absent in GF mice and are inducible upon microbial colonization, most notably with segmented filamentous bacteria (SFB),33,34 but also other commensal bacteria.35”

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Authors
Ivanov, I. I., Atarashi, K., Manel, N., Brodie, E. L., Shima, T., Karaoz, U., Wei, D., Goldfarb, K. C., Santee, C. A., Lynch, S. V., Tanoue, T., Imaoka, A., Itoh, K., Takeda, K., Umesaki, Y., Honda, K., & Littman, D. R.
Affiliations
  • New York University (US)
  • Immunology Frontier Research Center, The University of Osaka (JP)
  • Lawrence Berkeley National Laboratory (US)
  • Yakult Central Institute (JP)
  • Carl Zeiss (United States) (US)
  • University of California, San Francisco (US)
  • The University of Tokyo (JP)
  • Japan Science and Technology Agency (JP)
  • Howard Hughes Medical Institute (US)
Corresponding author
  • Honda, Kenya
  • Littman, Dan R.
Venue
Cell
Publisher
Elsevier BV
Published
2009-10
Volume
139
Issue
3
Pages
485-498
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2107369528
Cited by
4,554
References
67
Citations by year
2026: 178 · 2025: 229 · 2024: 275 · 2023: 260 · 2022: 275 · 2021: 372 · 2020: 315 · 2019: 351 · 2018: 307 · 2017: 313 · 2016: 289 · 2015: 293 · 2014: 279 · 2013: 253 · 2012: 200
FWCI
74.82
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute of Allergy and Infectious Diseases (AI 33856, R01AI033856)
  • National Institute of Diabetes and Digestive and Kidney Diseases (K99DK085329, P30DK043351)
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 › Psoriasis: Treatment and Pathogenesis
Keywords
segmented filamentous bacteria, Th17 cells, IL-17, IL-22, commensal microbiota, intestinal immune regulation, lamina propria, terminal ileum, Citrobacter rodentium, mucosal immunity, autoimmune disease
MeSH terms
Interleukin-22, Serum Amyloid A Protein, Animals, Cell Differentiation, Gram-Positive Bacteria, T-Lymphocytes, Helper-Inducer, Interleukins, Intestinal Mucosa, Mice, Inbred C57BL, Mucous Membrane, Specific Pathogen-Free Organisms, Symbiosis, Immunity, Mucosal, Interleukin-17, Citrobacter rodentium, Mice

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