کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5897614 | 1155272 | 2013 | 7 صفحه PDF | دانلود رایگان |
Macrophage migration inhibitory factor (MIF) is an upstream pro-inflammatory cytokine that is associated with the pathogenesis of autoimmune inflammatory diseases including rheumatoid arthritis (RA). Two polymorphisms in the upstream region exist in the MIF gene and are associated with RA susceptibility or severity in different populations. In this case-control study, we investigated whether MIF polymorphisms are associated with RA susceptibility or activity in a western Mexican population .The relationship of MIF levels with clinical features of disease also was assessed. Genotyping of the â794 CATT5-8 (rs5844572) and the â173 G > C (rs755622) polymorphisms was performed by PCR and PCR-RFLP respectively on 226 RA patients and 210 healthy subjects. Serum MIF levels were determined by ELISA. We found a significant association between the â794 CATT5-8 6,7 MIF genotype with RA. Moreover, we detected an association between the â794 CATT7 allele with early onset RA. The â794 CATT7 and â173*C alleles, which are in linkage disequilibrium, were associated with high disease activity on RA patients. A positive correlation between circulating MIF levels and C-reactive protein, erythrocyte sedimentation rate, rheumatoid factor, anti-citrullinated protein/peptides antibodies and TNFα was detected. MIF levels appear to be associated with disease progression rather than disease activity, which is distinct from the established relationship between disease activity and TNFα levels. In conclusion, the MIF gene and protein are associated with RA in a western Mexican population, with a main contribution onto early onset and early stages of disease.
⺠MIF polymorphisms are involved in rheumatoid arthritis susceptibility. ⺠â794 CATT7 allele is associated with early onset RA. ⺠MIF and TNFα soluble levels correlate positively in RA. ⺠MIF levels correlated negatively with years of disease duration.
Journal: Cytokine - Volume 61, Issue 3, March 2013, Pages 759-765