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Interleukin-1Ra rs2234663 and Interleukin-4 rs79071878 Polymorphisms in Familial Mediterranean Fever

Ayse Feyda Nursal1, Akin Tekcan2, Suheyla Uzun Kaya3

  • 1Giresun University, Faculty of Medicine, Department of Medical Genetic, Giresun, Turkey.

Gene
|February 11, 2016
PubMed
Abstract

Insights

Interleukin-4 (IL-4) gene variations are linked to Familial Mediterranean Fever (FMF) risk in Turkish individuals, while Interleukin-1 receptor antagonist (IL-1Ra) gene variations are not. Further research is needed to confirm these findings across diverse populations.

Area of Science:

  • Genetics
  • Immunology
  • Rheumatology

Background:

  • Familial Mediterranean Fever (FMF) is an inherited autoinflammatory disorder.
  • The MEFV gene encodes pyrin, crucial in the interleukin-1 (IL-1) inflammatory pathway.
  • Genetic variations in inflammatory mediators may influence FMF susceptibility.

Purpose of the Study:

  • To investigate the association between IL-1 receptor antagonist (IL-1Ra) and IL-4 gene polymorphisms and FMF risk.
  • To analyze these associations specifically within the Turkish population.

Main Methods:

  • Genotyping of IL-1Ra rs2234663 and IL-4 rs79071878 polymorphisms.
  • Study included 160 FMF patients and 120 healthy controls from Turkey.
  • Polymerase chain reaction (PCR) and related techniques (gel electrophoresis, PCR-RFLP) were used for genotyping.

Main Results:

  • No significant association was found between IL-1Ra rs2234663 polymorphism and FMF risk.
  • A significant association was observed for IL-4 rs79071878 genotype distribution in FMF patients compared to controls.
  • No allelic association was found for IL-4 rs79071878 in FMF patients versus controls.

Conclusions:

  • The IL-4 rs79071878 polymorphism is associated with FMF risk in the Turkish population.
  • The IL-1Ra rs2234663 polymorphism shows no association with FMF risk in this cohort.
  • Larger, multi-ethnic studies are recommended to elucidate the role of IL-1Ra and IL-4 polymorphisms in FMF pathogenesis.
Keywords:
Familial Mediterranean FeverIL-1RaIL-4Polymorphism

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