Document Detail


Inflammation in the central nervous system and Th17 responses are inhibited by IFN-gamma-Induced IL-18 binding protein.
MedLine Citation:
PMID:  20644165     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Inflammatory responses are essential for immune protection but may also cause pathology and must be regulated. Both Th1 and Th17 cells are implicated in the pathogenesis of autoimmune inflammatory diseases, such as multiple sclerosis. We show in this study that IL-18-binding protein (IL-18bp), the endogenous inhibitor of the Th1-promoting cytokine IL-18, is upregulated by IFN-gamma in resident microglial cells in the CNS during multiple sclerosis-like disease in mice. Test of function by overexpression of IL-18bp in the CNS using a viral vector led to marked reduction in Th17 responses and robust inhibition of incidence, severity, and histopathology of disease, independently of IFN-gamma. The disease-limiting action of IL-18bp included suppression of APC-derived Th17-polarizing cytokines. IL-18bp thus acts as a sensor for IFN-gamma and can regulate both Th1 and Th17 responses in the CNS.
Authors:
Jason M Millward; Morten Løbner; Rachel D Wheeler; Trevor Owens
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-07-19
Journal Detail:
Title:  Journal of immunology (Baltimore, Md. : 1950)     Volume:  185     ISSN:  1550-6606     ISO Abbreviation:  J. Immunol.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-05     Completed Date:  2010-09-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985117R     Medline TA:  J Immunol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2458-66     Citation Subset:  AIM; IM    
Affiliation:
Neuroimmunology Unit, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Line
Central Nervous System / drug effects,  immunology*,  pathology
Encephalomyelitis, Autoimmune, Experimental / genetics,  immunology,  prevention & control
Female
Flow Cytometry
Humans
Inflammation / genetics,  immunology*,  prevention & control
Injections, Spinal
Intercellular Signaling Peptides and Proteins / administration & dosage,  genetics,  immunology*
Interferon-gamma / genetics,  immunology*
Interleukin-17 / immunology,  metabolism
Interleukin-18 / genetics,  immunology
Male
Mice
Mice, Inbred C57BL
Mice, Knockout
Reverse Transcriptase Polymerase Chain Reaction
T-Lymphocytes, Helper-Inducer / immunology*,  metabolism
Grant Support
ID/Acronym/Agency:
//Canadian Institutes of Health Research
Chemical
Reg. No./Substance:
0/Intercellular Signaling Peptides and Proteins; 0/Interleukin-17; 0/Interleukin-18; 0/interleukin-18 binding protein; 82115-62-6/Interferon-gamma

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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