Cited by 65TGF-β signaling in diseasesInflammatory Bowel DiseaseT-cell and B-cell Immunology

Inflammatory cues enhance TGFβ activation by distinct subsets of human intestinal dendritic cells via integrin αvβ8

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Fenton, T.M., Kelly, A., Shuttleworth, E.E., Smedley, C., Atakilit, A., Powrie, F., Campbell, S., Nishimura, S.L. +5 more·2017·Mucosal Immunology

Abstract

Regulation of intestinal T-cell responses is crucial for immune homeostasis and prevention of inflammatory bowel disease (IBD). A vital cytokine in regulating intestinal T cells is transforming growth factor-β (TGFβ), which is secreted by cells as a latent complex that requires activation to function. However, how TGFβ activation is regulated in the human intestine, and how such pathways are altered in IBD is completely unknown. Here we show that a key activator of TGFβ, integrin αvβ8, is highly expressed on human intestinal dendritic cells (DCs), specifically on the CD1c + but not the CD141 + intestinal DC subset. Expression was significantly upregulated on intestinal DC from IBD patients, indicating that inflammatory signals may upregulate expression of this key TGFβ-activating molecule. Indeed, we found that the Toll-like receptor 4 ligand lipopolysaccharide upregulates integrin αvβ8 expression and TGFβ activation by human DC. We also show that DC expression of integrin αvβ8 enhanced induction of FOXP3 in CD4 + T cells, suggesting functional importance of integrin αvβ8 expression by human DC. These results show that microbial signals enhance the TGFβ-activating ability of human DC via regulation of integrin αvβ8 expression, and that intestinal inflammation may drive this pathway in patients with IBD.

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  • Memory CD8+ T cells provide long-term immunity against key tumor epitopes.

    “Additionally, memory CD8+ T cells provide long-term immunity against key tumor epitopes189.”

    From TGFβ biology in cancer progression and immunotherapy (2021) · cites this paper as [189]

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Authors
Fenton, T. M., Kelly, A., Shuttleworth, E. E., Smedley, C., Atakilit, A., Powrie, F., Campbell, S., Nishimura, S. L., Sheppard, D., Levison, S., Worthington, J. J., Lehtinen, M. J., & Travis, M. A.
Affiliations
  • Wellcome Centre for Cell-Matrix Research (GB)
  • University of California, San Francisco (US)
  • University of Oxford (GB)
  • Manchester Royal Infirmary (GB)
  • University of Manchester (GB)
  • DuPont (Finland) (FI)
Corresponding author
Travis, M.A.
Venue
Mucosal Immunology
Publisher
Elsevier BV
Published
2017-05
Volume
10
Issue
3
Pages
624-634
ISSN
1933-0219 (ISSN-L)
OpenAlex
W2541536818
Cited by
64
References
40
Citations by year
2026: 2 · 2025: 2 · 2024: 4 · 2023: 10 · 2022: 7 · 2021: 4 · 2020: 8 · 2019: 9 · 2018: 9 · 2017: 8
FWCI
4.51
Type
journal article
Language
en
Open access
Locations
  • Mucosal Immunology (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion, cc-by)
  • eScholarship (California Digital Library) (submittedVersion)
  • Lancaster EPrints (Lancaster University) (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion, cc-by)
Funders
  • Wellcome Trust (088785, 097820/Z11/B, 088785/Z/09/Z, 097820, 088785/Z/09)
  • Manchester Collaborative Centre for Inflammation Research
  • Directorate for Biological Sciences
  • Medical Research Council (MR/M00242X/1, MR/L011840/1)
  • Biotechnology and Biological Sciences Research Council (BB/G001103/1)
  • National Heart, Lung, and Blood Institute (R01HL113032)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
integrin αvβ8, intestinal dendritic cells, CD1c+ dendritic cells, CD141+ dendritic cells, intestinal inflammation, inflammatory bowel disease, lipopolysaccharide, TLR4, Foxp3, regulatory T cells, microbial signals
MeSH terms
Adult, Aged, Cells, Cultured, Dendritic Cells, Female, Glycoproteins, Humans, Intestines, Lipopolysaccharides, Male, Middle Aged, Inflammatory Bowel Diseases, CD4-Positive T-Lymphocytes, Up-Regulation, Integrins, Transforming Growth Factor beta, Antigens, CD1, Toll-Like Receptor 4, Forkhead Transcription Factors

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