Cited by 561T-cell and B-cell ImmunologyPsoriasis: Treatment and PathogenesisCancer, Hypoxia, and Metabolism

Hypoxia-inducible factor-1 alpha-dependent induction of FoxP3 drives regulatory T-cell abundance and function during inflammatory hypoxia of the mucosa

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Clambey, Eric T., McNamee, Eóin N., Westrich, Joseph A., Glover, Louise E., Campbell, Eric L., Jedlicka, Paul, de Zoeten, Edwin F., Cambier, John C. +3 more·2012·Proceedings of the National Academy of Sciences

Abstract

Recent studies have demonstrated dramatic shifts in metabolic supply-and-demand ratios during inflammation, a process resulting in localized tissue hypoxia within inflammatory lesions (“inflammatory hypoxia”). As part of the adaptive immune response, T cells are recruited to sites of inflammatory hypoxia. Given the profound effects of hypoxia on gene regulation, we hypothesized that T-cell differentiation is controlled by hypoxia. To pursue this hypothesis, we analyzed the transcriptional consequences of ambient hypoxia (1% oxygen) on a broad panel of T-cell differentiation factors. Surprisingly, these studies revealed selective, robust induction of FoxP3, a key transcriptional regulator for regulatory T cells (Tregs). Studies of promoter binding or loss- and gain-of-function implicated hypoxia-inducible factor (HIF)-1α in inducing FoxP3. Similarly, hypoxia enhanced Treg abundance in vitro and in vivo. Finally, Treg-intrinsic HIF-1α was required for optimal Treg function and Hif1a –deficient Tregs failed to control T-cell–mediated colitis. These studies demonstrate that hypoxia is an intrinsic molecular cue that promotes FoxP3 expression, in turn eliciting potent anti-inflammatory mechanisms to limit tissue damage in conditions of reduced oxygen availability.

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Crossref · 10.1073/pnas.1202366109

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  • Tumor hypoxia and/or HIFs can attract myeloid-derived suppressor cells, regulatory T-cells, and tumor-associated macrophages with immunosuppressive functions.

    “For instance, tumor hypoxia and/or HIFs can attract myeloid-derived suppressor cells (Corzo et al., 2010), regulatory T-cells (Clambey et al., 2012), and tumor-associated macrophages (Doedens et al., 2010;Imtiyaz et al., 2010) with immunosuppressive functions.”

    From Therapeutic targeting of hypoxia and hypoxia-inducible factors in cancer (2016) · cites this paper as Clambey et al., 2012

    The Discussion (p. 8) reports that hypoxia increases the relative abundance of regulatory T cells and that HIF-1α supports their suppressive function. The study concerns inflammatory hypoxia, however; it does not show that tumor hypoxia attracts or recruits regulatory T cells to tumors. The other cell types in the citing sentence are attributed to different sources. (LLM, conf=0.88)

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Authors
Clambey, E. T., McNamee, E. N., Westrich, J. A., Glover, L. E., Campbell, E. L., Jedlicka, P., de Zoeten, E. F., Cambier, J. C., Stenmark, K. R., Colgan, S. P., & Eltzschig, H. K.
Affiliations
  • Mucosal Inflammation Program,
  • Department of Anesthesiology, Departments of bMedicine,
  • Pathology, and
  • Pediatrics,
  • Integrated Department of Immunology, and
  • Pediatrics and Genetics (US)
Venue
Proceedings of the National Academy of Sciences
Published
2012-09-17
Volume
109
Issue
41
Pages
E2784-93
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1986925527
Cited by
560
References
71
Citations by year
2026: 28 · 2025: 31 · 2024: 35 · 2023: 43 · 2022: 60 · 2021: 49 · 2020: 62 · 2019: 44 · 2018: 39 · 2017: 35 · 2016: 38 · 2015: 35 · 2014: 34 · 2013: 25 · 2012: 2
FWCI
13.43
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Maynooth University ePrints and eTheses Archive (Maynooth University) (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL60569, R01HL060569, R01HL098294, R01HL092188, R01‑HL0921)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R0-1 DK50189, R01DK050189, R37DK050189, R01DK083385, R01DK095491)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
Keywords
hypoxia-inducible factor-1α, Foxp3, regulatory T cells, mucosal inflammation, T cell differentiation, transcriptional regulation, T cell-mediated colitis, anti-inflammatory mechanism, oxygen availability
MeSH terms
Animals, Hypoxia, Cells, Cultured, Colitis, Female, Flow Cytometry, Gene Expression Regulation, Humans, Inflammation, Interleukin-1, Intestinal Mucosa, Male, Mice, Inbred C57BL, Mice, Transgenic, Cell Hypoxia, Transforming Growth Factor beta, Mice, Knockout, Jurkat Cells, Reverse Transcriptase Polymerase Chain Reaction, RNA Interference, Cell Proliferation, T-Lymphocytes, Regulatory, Mice, Hypoxia-Inducible Factor 1, alpha Subunit, Forkhead Transcription Factors

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