Document Detail


Dual effect of the macrophage migration inhibitory factor gene on the development and severity of human systemic lupus erythematosus.
MedLine Citation:
PMID:  22127710     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To study the effect of the innate cytokine macrophage migration inhibitory factor (MIF) on the susceptibility and severity of systemic lupus erythematosus (SLE) in a multinational population of 1,369 Caucasian and African American patients.
METHODS: Two functional polymorphisms in the MIF gene, a -794 CATT(5-8) microsatellite repeat (rs5844572) and a -173 G/C single-nucleotide polymorphism (rs755622), were assessed for association with SLE in 3,195 patients and healthy controls. We also measured MIF plasma levels in relation to genotypes and clinical phenotypes, and assessed Toll-like receptor 7 (TLR-7)-stimulated MIF production in vitro.
RESULTS: Both Caucasians and African Americans with the high-expression MIF haplotype -794 CATT(7)/-173*C had a lower incidence of SLE (in Caucasians, odds ratio [OR] 0.63, 95% confidence interval [95% CI] 0.53-0.89, P = 0.001; in African Americans, OR 0.46, 95% CI 0.23-0.95, P = 0.012). In contrast, among patients with established SLE, reduced frequencies of low-expression MIF genotypes (-794 CATT(5)) were observed in those with nephritis, those with serositis, and those with central nervous system (CNS) involvement when compared to patients without end-organ involvement (P = 0.023, P = 0.005, and P = 0.04, respectively). Plasma MIF levels and TLR-7-stimulated MIF production in vitro reflected the underlying MIF genotype of the studied groups.
CONCLUSION: These findings suggest that MIF, which has both proinflammatory properties and macrophage and B cell survival functions, exerts a dual influence on the immunopathogenesis of SLE. High-expression MIF genotypes are associated with a reduced susceptibility to SLE and may contribute to an enhanced clearance of infectious pathogens. Once SLE develops, however, low-expression MIF genotypes may protect from ensuing inflammatory end-organ damage.
Authors:
Antoine Sreih; Rana Ezzeddine; Lin Leng; Avery LaChance; Geraldine Yu; Yuka Mizue; Lakshman Subrahmanyan; Bernardo A Pons-Estel; Anna-Karin Abelson; Iva Gunnarsson; Elisabet Svenungsson; Joshua Cavett; Stuart Glenn; Lin Zhang; Ruth Montgomery; Andras Perl; Jane Salmon; Marta E Alarcón-Riquelme; John B Harley; Richard Bucala
Publication Detail:
Type:  Comparative Study; Journal Article; Multicenter Study; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Arthritis and rheumatism     Volume:  63     ISSN:  1529-0131     ISO Abbreviation:  Arthritis Rheum.     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-11-30     Completed Date:  2012-01-27     Revised Date:  2012-04-25    
Medline Journal Info:
Nlm Unique ID:  0370605     Medline TA:  Arthritis Rheum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3942-51     Citation Subset:  AIM; IM    
Copyright Information:
Copyright © 2011 by the American College of Rheumatology.
Affiliation:
Yale University School of Medicine, New Haven, Connecticut 06520, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
African Americans / ethnology
Case-Control Studies
Cross-Sectional Studies
European Continental Ancestry Group / ethnology
Female
Genetic Predisposition to Disease / genetics*
Genotype
Humans
Lupus Erythematosus, Systemic / blood,  ethnology,  genetics*
Macrophage Migration-Inhibitory Factors / blood,  genetics*
Male
Middle Aged
Phenotype
Polymorphism, Single Nucleotide / genetics*
Severity of Illness Index*
Tumor Necrosis Factor-alpha / blood
Grant Support
ID/Acronym/Agency:
AR-049610/AR/NIAMS NIH HHS; AR-050498/AR/NIAMS NIH HHS; N01-AI-50031/AI/NIAID NIH HHS; R01 AR049610/AR/NIAMS NIH HHS; R01 AR049610-08/AR/NIAMS NIH HHS; R01 AR049610-11/AR/NIAMS NIH HHS; R01 AR050498-08/AR/NIAMS NIH HHS
Chemical
Reg. No./Substance:
0/Macrophage Migration-Inhibitory Factors; 0/Tumor Necrosis Factor-alpha

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