Journal
MOLECULAR NEUROBIOLOGY
Volume 54, Issue 4, Pages 3031-3037Publisher
HUMANA PRESS INC
DOI: 10.1007/s12035-016-9864-8
Keywords
Inflammasomes; IFN-beta 1 alpha; Multiple sclerosis; Caspase-1; Cytokine
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Funding
- Kerman University of Medical Sciences
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This study aims to evaluate the effects of treatment with IFN-beta 1 alpha on the expressions of NLRP3, NLRP1, NLRC4, and AIM2, as inflammasomes, and caspase-1, IL-1 beta, and IL-18, as the downstream molecules of inflammasomes, in a population of Iranian multiple sclerosis (MS) patients. In this study, 30 MS patients (22 women and 8 men) participated. Before receiving any medication and 6A, months after treatment with standard doses of IFN-beta 1 alpha 30A, mcg injected intramuscularly once a week, blood samples were taken and then the leukocytes isolated, total RNAs extracted, and complementary DNAs (cDNAs) synthesized. Gene expressions of NLRP3, NLRP1, NLRC4, AIM2, and ASC were evaluated at messenger RNA (mRNA) levels using real-time PCR method; for assessing caspase-1 at protein level, the Western blot method was used. The amounts of IL-1 beta and IL-18 were measured in plasma using enzyme-linked immunosorbent assay method. Analysis of the results before and after therapy with IFN-beta 1 alpha in all patients shows significantly decreased expressions of NLRP3, NLRC4, and AIM2. The plasma levels of IL-1 beta, after treatment with IFN-beta 1 alpha, were significantly decreased in the MS patients. Based on our results, it appears that NLRP3, NLRC4, and AIM2 play critical roles in the progression of MS, probably by mediating Th1 and Th17 responses. It seems that decreased expression of IL-1 beta is related to decreased production and also functions of inflammasomes.
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