Document Detail


IL-17 inhibits human Th1 differentiation through IL-12R beta 2 downregulation.
MedLine Citation:
PMID:  19692269     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Th17 cells are critical in adaptive immunity and autoimmune disease. The polarized development of Th17, Th1 and Th2 cells is dependent on counterregulatory effects on each other. Whereas IFN-gamma inhibits Th17 development, the effect of IL-17 in human Th1 development is not known. We report a novel negative regulatory role of IL-17 on IL-12R beta 2 expression associated with reduced IL-12 responsiveness. IL-17 decreased IL-12-induced IFN-gamma expression in PBMC and developing Th1 cells, associated with a selective reduction in IL-12R beta 2, and not IL-23R, IL-12R beta 1 or T-bet. Counterregulatory effects of human Th17 on Th1 lineage cytokines may contribute to lineage divergence. In autoimmune disease, IL-17 may reinforce its own developmental programme by reducing IL-12 responsiveness, thus limiting inhibitory effects of IFN-gamma on Th17 development.
Authors:
Myew-Ling Toh; Masanori Kawashima; Saloua Zrioual; Arnaud Hot; Philippe Miossec; Pierre Miossec
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-18
Journal Detail:
Title:  Cytokine     Volume:  48     ISSN:  1096-0023     ISO Abbreviation:  Cytokine     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-10-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9005353     Medline TA:  Cytokine     Country:  United States    
Other Details:
Languages:  eng     Pagination:  226-30     Citation Subset:  IM    
Affiliation:
Department of Immunology, University of Lyon, Edouard Herriot Hospital, Lyon, France.
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