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Research article
Association of CD40 gene polymorphisms rs1883832 and rs4810485 with familial mediterranean fever in pediatric patients
Mahir Binici, İlyas Yücel, Selahattin Tekeş, Diclehan Oral, Mahmut Balkan, Selahattin Katar
Abstract: Background: Familial Mediterranean fever (FMF) is a recessively inherited autoinflammatory disease characterized by a combination of multiple clinical symptoms potentially associated with numerous genetic and non-genetic risk factors. The CD40 gene, which plays an essential role in inflammatory responses and immune system regulation, contains single-nucleotide polymorphisms (SNPs) that have been linked to various diseases. This research aimed to examine potential associations between CD40 SNPs and FMF in pediatric patients. Methods: Data regarding common MEFV gene mutations in the patient cohort were analyzed using pyrosequencing techniques. For both patient and control groups, CD40 gene SNPs were genotyped using real-time PCR with rs1883832 and rs4810485 Taq-Man genotyping probes. Results: The analysis of the CD40 gene’s rs1883832 SNP revealed the following distribution in the patient group: CC genotype at 43.0%, CT genotype at 56.0%, and TT genotype at 1.0%. In comparison, the control group showed CC genotype in 47.0% and CT genotype in 53.0% of cases. For the rs4810485 SNP of the CD40 gene, the patient group exhibited GG genotype in 43.0%, GT genotype in 43.0%, and TT genotype in 14.0% of cases. The control group showed distributions of 47.0% for GG genotype, 45.0% for GT genotype, and 8.0% for TT genotype. Conclusions: The study found no statistically significant correlations between FMF disease and either the rs1883832 or rs4810485 SNPs of the CD40 gene.
Keywords: CD40, familial mediterranean fever, polymorphism, rs1883832, rs4810485, single nucleotide
Received: 19.12.2024
Accepted: 10.3.2025
Published: 21.3.2025
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