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Related Experiment Videos

Interleukin 1alpha single-nucleotide polymorphism associated with systemic sclerosis.

Beáta Hutyrová1, Jozef Lukác, Vladimír Bosák

  • 1Department of Immunology, Palacky University, Olomouc, Czech Republic.

The Journal of Rheumatology
|January 6, 2004
PubMed
Summary

The IL-1alpha-889 polymorphism is linked to an increased risk of systemic sclerosis (SSc). This genetic variation may play a role in SSc development, influencing susceptibility to the disease.

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Area of Science:

  • Genetics
  • Immunology
  • Rheumatology

Background:

  • Systemic sclerosis (SSc) is characterized by constitutive expression of interleukin 1alpha (IL-1alpha), a pro-inflammatory and fibrogenic cytokine, by dermal fibroblasts.
  • The role of specific genetic variations in SSc pathogenesis is an area of active research.

Purpose of the Study:

  • To investigate the association between the single-nucleotide polymorphism at position -889 in the IL-1alpha gene and susceptibility to systemic sclerosis (SSc).

Main Methods:

  • Genotyping of the IL-1alpha-889 polymorphism was conducted using polymerase chain reaction with sequence-specific primers.
  • The study included 46 SSc patients and 150 healthy controls, all unrelated Slovak Caucasians.

Main Results:

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  • Carriers of the IL-1alpha-889 T allele were significantly overrepresented in SSc patients compared to controls (63.0% vs 42.0%, p=0.01).
  • The frequency of the IL-1alpha-889 T allele was higher in SSc patients (38.0%) than in controls (25.7%, p=0.02).

    • Conclusions:

    • The IL-1alpha-889 polymorphism is associated with an increased risk of developing systemic sclerosis.
    • This polymorphism, known to influence IL-1 protein expression, may contribute to SSc susceptibility.