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Article Abstract
Objectives: Familial Mediterranean Fever (FMF) is a hereditary auto-inflammatory disorder that is caused by mutations in the Mediterranean fever (MEFV) gene and is associated with an increase in pro-inflammatory cytokines, such as interleukin-1β (IL-1β) and interleukin-18 (IL-18), leading to excess inflammation. Colchicine is a common drug widely used for treatment of FMF attacks, but about 5-15% of the patients show resistance to the regular colchicine treatment. In this study, we used dimethylamino-parthenolide (DMAPT), as a small molecule inhibitor of Nuclear factor-κB (NF-κB), NLR family Pyrin domain containing 3 (NLRP3), and cysteine-aspartic acid protease 1(Caspase-1) on FMF-derived peripheral blood mononuclear cells (PBMCs).
Materials And Methods: The effects of DMAPT and colchicine on metabolic activity and apoptosis of FMF-derived PBMCs were evaluated by MTT and Annexin V/PI assays, respectively. Also, the expression levels of NF-κB, NLRP3, MEFV, CASP1, and IL-1β mRNA were investigated using a TaqMan real-time PCR, and the protein levels of IL-1β, IL-18, and IL-37 were assessed via an enzyme-linked immunosorbent assay (ELISA) in LPS/ ATP-stimulated PBMCs.
Results: DMAPT decreased the expression levels of NFκB (0.38±0.096, 0.0001), NLRP3 (0.39±0.12, 0.001), MEFV (0.384±0.145, 0.001), CASP1 (0.48±0.13, 0.0023), and IL-1β (0.09±0.09, 0.0001) and reduced the secretion levels of IL-1β (8.92±5.3 vs. 149.85±20.92, 0.0001), IL-18 (135±32.1 vs. 192±22.18, 0.01), and IL-37 (27.5±6.3 vs. 78.19±14.3, 0.0001) as compared to untreated cells.
Conclusion: Given the obtained results in comparison with previous research, the future clinical development of DMAPT could result in the expansion of new anti-inflammatory therapeutics for FMF disorder.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8769508 | PMC |
| http://dx.doi.org/10.22038/IJBMS.2021.59180.13140 | DOI Listing |
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