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Identification of IL-17-producing FOXP3+regulatory T cells in humans

Open access
Voo, Kui Shin, Wang, Yui-Hsi, Santori, Fabio R., Boggiano, Cesar, Wang, Yi-Hong, Arima, Kazuhiko, Bover, Laura, Hanabuchi, Shino, Khalili, Jahan, Marinova, Ekaterina, Zheng, Biao, Littman, Dan R., Liu, Yong-Jun·2009·Proceedings of the National Academy of Sciences

Abstract

IL-17–producing CD4+T helper (Th17) cells have recently been defined as a unique subset of proinflammatory helper cells whose development depends on signaling initiated by IL-6 and TGF-β, autocrine activity of IL-21, activation of STAT3, and induction of the orphan nuclear receptor RORγt. The maintenance, expansion, and further differentiation of the committed Th17 cells depend on IL-1β and IL-23. IL-17 was originally found produced by circulating human CD45RO+memory T cells. A recent study found that human Th17 memory cells selectively express high levels of CCR6. In this study, we report that human peripheral blood and lymphoid tissue contain a significant number of CD4+FOXP3+T cells that express CCR6 and have the capacity to produce IL-17 upon activation. These cells coexpress FOXP3 and RORγt transcription factors. The CD4+FOXP3+CCR6+IL-17–producing cells strongly inhibit the proliferation of CD4+responder T cells. CD4+CD25 high-derived T-cell clones express FOXP3, RORγt, and IL-17 and maintain their suppressive function via a cell-cell contact mechanism. We further show that human CD4+FOXP3+CCR6−regulatory T (Treg) cells differentiate into IL-17 producer cells upon T-cell receptor stimulation in the presence of IL-1β, IL-2, IL-21, IL-23, and human serum. This, together with the finding that human thymus does not contain IL-17–producing Treg cells, suggests that the IL-17+FOXP3+Treg cells are generated in the periphery. IL-17–producing Treg cells may play critical roles in antimicrobial defense, while controlling autoimmunity and inflammation.

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Metadata

Authors
Voo, K. S., Wang, Y.-H., Santori, F. R., Boggiano, C., Wang, Y.-H., Arima, K., Bover, L., Hanabuchi, S., Khalili, J., Marinova, E., Zheng, B., Littman, D. R., & Liu, Y.-J.
Venue
Proceedings of the National Academy of Sciences
Published
2009-03-24
Volume
106
Issue
12
Pages
4793-4798
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2142877732
Cited by
689
References
14
FWCI
31.82
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Identification of IL-17-producing FOXP3+regulatory T cells in humans. https://app.cochat.ai/papers/10.1073/pnas.0900408106
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Voo, K. S., Wang, Y.-H., Santori, F. R., Boggiano, C., Wang, Y.-H., Arima, K., Bover, L., Hanabuchi, S., Khalili, J., Marinova, E., Zheng, B., Littman, D. R., & Liu, Y.-J. (2009). Identification of IL-17-producing FOXP3+regulatory T cells in humans. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0900408106

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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