RORγt(+)Foxp3(+) Cells are an Independent Bifunctional Regulatory T Cell Lineage and Mediate Crescentic GN
Copyright © 2016 by the American Society of Nephrology..
Cells expressing both the regulatory T cell (Treg)-inducing transcription factor Foxp3 and the Th17 transcription factor RORγt have been identified (biTregs). It is unclear whether RORγt(+)Foxp3(+) biTregs belong to the Th17-specific Treg17 cells, represent intermediates during Treg/Th17 transdifferentiation, or constitute a distinct cell lineage. Because the role of biTregs in inflammatory renal disease is also unknown, we studied these cells in the nephrotoxic nephritis (NTN) model of acute crescentic GN. Induction of NTN resulted in rapid renal and systemic expansion of biTregs. Notably, analyses of the biTreg expression profile revealed production of both anti-inflammatory (IL-10, IL-35) and proinflammatory (IL-17) cytokines. Additionally, biTregs expressed a signature of surface molecules and transcription factors distinct from those of Th17 cells and conventional Tregs (cTregs), and biTregs were identified in Treg17-deficient mice. Finally, fate reporter and cell transfer studies confirmed that biTregs are not Treg/Th17 transdifferentiating cells. Therapeutic transfer of biTregs suppressed the development of nephritis to an extent similar to that observed with transferred cTregs, but in vitro studies indicated different mechanisms of immunosuppression for biTregs and cTregs. Intriguingely, as predicted from their cytokine profile, endogenous biTregs displayed additional proinflammatory functions in NTN that were abrogated by cell-specific deletion of RORγt. In summary, we provide evidence that RORγt(+)Foxp3(+) biTregs are a novel and independent bifunctional regulatory T cell lineage distinct from cTregs, Treg17 cells, and Th17 cells. Furthermore, biTregs appear to contribute to crescentic GN and hence may be novel therapeutic targets.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:27 |
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| Enthalten in: |
Journal of the American Society of Nephrology : JASN - 27(2016), 2 vom: 09. Feb., Seite 454-65 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kluger, Malte A [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 07.06.2016 Date Revised 13.11.2018 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1681/ASN.2014090880 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM249765799 |
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| 520 | |a Copyright © 2016 by the American Society of Nephrology. | ||
| 520 | |a Cells expressing both the regulatory T cell (Treg)-inducing transcription factor Foxp3 and the Th17 transcription factor RORγt have been identified (biTregs). It is unclear whether RORγt(+)Foxp3(+) biTregs belong to the Th17-specific Treg17 cells, represent intermediates during Treg/Th17 transdifferentiation, or constitute a distinct cell lineage. Because the role of biTregs in inflammatory renal disease is also unknown, we studied these cells in the nephrotoxic nephritis (NTN) model of acute crescentic GN. Induction of NTN resulted in rapid renal and systemic expansion of biTregs. Notably, analyses of the biTreg expression profile revealed production of both anti-inflammatory (IL-10, IL-35) and proinflammatory (IL-17) cytokines. Additionally, biTregs expressed a signature of surface molecules and transcription factors distinct from those of Th17 cells and conventional Tregs (cTregs), and biTregs were identified in Treg17-deficient mice. Finally, fate reporter and cell transfer studies confirmed that biTregs are not Treg/Th17 transdifferentiating cells. Therapeutic transfer of biTregs suppressed the development of nephritis to an extent similar to that observed with transferred cTregs, but in vitro studies indicated different mechanisms of immunosuppression for biTregs and cTregs. Intriguingely, as predicted from their cytokine profile, endogenous biTregs displayed additional proinflammatory functions in NTN that were abrogated by cell-specific deletion of RORγt. In summary, we provide evidence that RORγt(+)Foxp3(+) biTregs are a novel and independent bifunctional regulatory T cell lineage distinct from cTregs, Treg17 cells, and Th17 cells. Furthermore, biTregs appear to contribute to crescentic GN and hence may be novel therapeutic targets | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a T cells | |
| 650 | 4 | |a glomerulonephritis | |
| 650 | 4 | |a immunology and pathology | |
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| 700 | 1 | |a Meyer, Matthias C |e verfasserin |4 aut | |
| 700 | 1 | |a Nosko, Anna |e verfasserin |4 aut | |
| 700 | 1 | |a Goerke, Boeren |e verfasserin |4 aut | |
| 700 | 1 | |a Luig, Michael |e verfasserin |4 aut | |
| 700 | 1 | |a Wegscheid, Claudia |e verfasserin |4 aut | |
| 700 | 1 | |a Tiegs, Gisa |e verfasserin |4 aut | |
| 700 | 1 | |a Stahl, Rolf A K |e verfasserin |4 aut | |
| 700 | 1 | |a Panzer, Ulf |e verfasserin |4 aut | |
| 700 | 1 | |a Steinmetz, Oliver M |e verfasserin |4 aut | |
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