17 research outputs found
Analysis of MEFV exon methylation and expression patterns in familial Mediterranean fever
<p>Abstract</p> <p>Background</p> <p>MEFV mutations and decreased expression level of the gene are related to FMF pathology. DNA methylation at CpG islands is a well-known mechanism for transcriptional silencing. MEFV has a CpG island, spanning a part of the first intron and the whole of the second exon of the gene covering 998 bp region. Here, we tested the hypothesis that the MEFV transcript level in FMF patients correlates with its methylation level, and methylation, by allowing transcription silencing, has a role in FMF ethiopathogenesis.</p> <p>Methods</p> <p>The study group was composed of pediatric FMF patients (N = 51) and age-gender matched healthy controls (N = 21). The relative expression level of MEFV was assessed via quantitative real-time PCR (qRT-PCR) and bisulfite sequencing (BS) was performed to analyse the methylation level quantitatively.</p> <p>Results</p> <p>MEFV expression in FMF patients were decreased compared to healthy controls (<it>P </it>= 0.031). Methylation level of exon 2 of MEFV was found to be slightly higher in FMF patients compared to healthy controls (76% versus 74%) (<it>P </it>= 0.049). The expression level of the MEFV was negatively correlated with the methylation level of the CpG island in both FMF and healthy controls groups (cor = -0.29, <it>P </it>= 0.041) but more so in the FMF only group (cor = -0.36, <it>P </it>= 0.035).</p> <p>Conclusions</p> <p>In this study, the relation between reduced MEFV expression level and FMF was confirmed. Observed slight increase in methylation in FMF patients, and correlation of methylation with expression might be indicative of its role in FMF, however a larger dataset is needed to confirm our preliminary findings.</p
Alternatively spliced MEFV transcript lacking exon 2 and its protein isoform pyrin-2d implies an epigenetic regulation of the gene in inflammatory cell culture models
WHOLE GENOME LINKAGE AND EXOME SEQUENCING ANALYSES IN AN AUTOSOMAL RECESSIVE TAKAYASU ARTERITIS FAMILY
TREX 1 MUTATION IN THE MEMBERS OF A FAMILY WITH SYSTEMIC LUPUS ERYTHEMATOSUS AND ANTIPHOSPHOLIPID SYNDROME
Other autoinflammatory disease genes in an FMF-prevalent population: a homozygous MVK mutation and a heterozygous TNFRSF1A mutation in two different Turkish families with clinical FMF
Objective. No MEFV mutations are detected in approximately 10% of the patients with clinical FMF in populations where the disease is highly prevalent. Causative mutations were searched in other genes in two such families with "MEFV negative clinical FMF"
Investigation of Peripheral Blood Mononuclear Cells (PBMC) Proteome Profile in Behcet's Disease
A case with febrile attacks and vasculopathy associated with ADA2 and MEFV gene mutations
A twin study in Behcet's syndrome
Objectives. Case reports on monozygotic (MZ) twins with Behcet's syndrome (BS) have been few and we are not aware of formal twin studies. We sought the frequency of MZ and dizygotic (DZ) twin births in BS and compared it to a healthy population sample from the same geography. We also looked for the concordance rate among the MZ and DZ twins