Cited by 402Ocular Diseases and Behçet’s SyndromeT-cell and B-cell ImmunologyGut microbiota and health

Microbiota-Dependent Activation of an Autoreactive T Cell Receptor Provokes Autoimmunity in an Immunologically Privileged Site

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Horai, Reiko, Zárate-Bladés, Carlos R., Dillenburg-Pilla, Patricia, Chen, Jun, Kielczewski, Jennifer L., Silver, Phyllis B., Jittayasothorn, Yingyos, Chan, Chi-Chao +3 more·2015·Immunity

Abstract

Activated retina-specific T cells that have acquired the ability to break through the blood-retinal barrier are thought to be causally involved in autoimmune uveitis, a major cause of human blindness. It is unclear where these autoreactive T cells first become activated, given that their cognate antigens are sequestered within the immune-privileged eye. We demonstrate in a novel mouse model of spontaneous uveitis that activation of retina-specific T cells is dependent on gut commensal microbiota. Retina-specific T cell activation involved signaling through the autoreactive T cell receptor (TCR) in response to non-cognate antigen in the intestine and was independent of the endogenous retinal autoantigen. Our findings not only have implications for the etiology of human uveitis, but also raise the possibility that activation of autoreactive TCRs by commensal microbes might be a more common trigger of autoimmune diseases than is currently appreciated.

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Crossref · 10.1016/j.immuni.2015.07.014

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Authors
Horai, R., Zárate-Bladés, C. R., Dillenburg-Pilla, P., Chen, J., Kielczewski, J. L., Silver, P. B., Jittayasothorn, Y., Chan, C.-C., Yamane, H., Honda, K., & Caspi, R. R.
Affiliations
  • National Institutes of Health (US)
  • Keio University (JP)
Corresponding author
Caspi, Rachel R.
Venue
Immunity
Publisher
Elsevier BV
Published
2015-08
Volume
43
Issue
2
Pages
343-353
ISSN
1074-7613 (ISSN-L)
OpenAlex
W1913779731
Cited by
402
References
41
Citations by year
2026: 24 · 2025: 27 · 2024: 30 · 2023: 38 · 2022: 46 · 2021: 40 · 2020: 46 · 2019: 39 · 2018: 32 · 2017: 34 · 2016: 40 · 2015: 6
FWCI
35.84
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NEI (EY000184)
  • CREST, Japan Science and Technology Agency (Tokyo, Japan)
Topics
  • Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
autoimmune uveitis, T cell activation, blood-retinal barrier, immunologically privileged sites, autoimmunity
MeSH terms
Retinol-Binding Proteins, Interstitial, Animals, Antigens, Bacterial, Autoantigens, Blood-Retinal Barrier, Cells, Cultured, Disease Models, Animal, Eye Proteins, Immune Tolerance, Intestines, Lymphocyte Activation, Mice, Inbred Strains, Receptors, Antigen, T-Cell, Retina, Retinol-Binding Proteins, T-Lymphocytes, Uveitis, Autoimmunity, Mice, Knockout, Microbiota

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