Document Detail


γδ T cells enhance autoimmunity by restraining regulatory T cell responses via an interleukin-23-dependent mechanism.
MedLine Citation:
PMID:  20832339     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Mice that lack interleukin-23 (IL-23) are resistant to T cell-mediated autoimmunity. Although IL-23 is a maturation factor for T helper 17 (Th17) cells, a subset of γδ T cells expresses the IL-23 receptor (IL-23R) constitutively. Using IL-23R reporter mice, we showed that γδ T cells were the first cells to respond to IL-23 during experimental autoimmune encephalomyelitis (EAE). Although γδ T cells produced Th17 cell-associated cytokines in response to IL-23, their major function was to prevent the development of regulatory T (Treg) cell responses. IL-23-activated γδ T cells rendered αβ effector T cells refractory to the suppressive activity of Treg cells and also prevented the conversion of conventional T cells into Foxp3(+) Treg cells in vivo. Thus, IL-23, which by itself has no direct effect on Treg cells, is able to disarm Treg cell responses and promote antigen-specific effector T cell responses via activating γδ T cells.
Authors:
Franziska Petermann; Veit Rothhammer; Malte C Claussen; Jan D Haas; Lorena Riol Blanco; Sylvia Heink; Immo Prinz; Bernhard Hemmer; Vijay K Kuchroo; Mohamed Oukka; Thomas Korn
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2010-09-09
Journal Detail:
Title:  Immunity     Volume:  33     ISSN:  1097-4180     ISO Abbreviation:  Immunity     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-27     Completed Date:  2010-10-13     Revised Date:  2012-05-07    
Medline Journal Info:
Nlm Unique ID:  9432918     Medline TA:  Immunity     Country:  United States    
Other Details:
Languages:  eng     Pagination:  351-63     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Klinikum rechts der Isar, Department of Neurology, Technical University Munich, Ismaninger Strasse 22, Munich, Germany.
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Animals
Autoimmunity*
Encephalomyelitis, Autoimmune, Experimental / etiology
Interleukin-17 / biosynthesis
Interleukin-23 / physiology*
Interleukins / biosynthesis
Mice
Mice, Inbred C57BL
Molecular Sequence Data
Receptors, Antigen, T-Cell / physiology
Receptors, Antigen, T-Cell, gamma-delta / physiology*
Receptors, Interleukin / physiology
T-Lymphocytes, Regulatory / immunology*
Grant Support
ID/Acronym/Agency:
R01 AI073542-04/AI/NIAID NIH HHS; R01 AI073542-05/AI/NIAID NIH HHS; R01 AI073542-05S1/AI/NIAID NIH HHS; R01 AI073542-06/AI/NIAID NIH HHS; R01 NS030843-19/NS/NINDS NIH HHS; R01AI 073542-03/AI/NIAID NIH HHS; R01NS 30843/NS/NINDS NIH HHS
Chemical
Reg. No./Substance:
0/Interleukin-17; 0/Interleukin-23; 0/Interleukins; 0/Receptors, Antigen, T-Cell; 0/Receptors, Antigen, T-Cell, gamma-delta; 0/Receptors, Interleukin; 0/interleukin-22; 0/interleukin-23 receptor, mouse
Comments/Corrections
Comment In:
Nat Rev Immunol. 2010 Oct;10(10):679   [PMID:  20879167 ]

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