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Analysis of IL-17 gene polymorphisms in Chinese patients with dilated cardiomyopathy

Ying Peng1, Bin Zhou, Yan-Yun Wang

  • 1Department of Cardiology, West China Hospital of Sichuan University, Chengdu, PR China.

Human Immunology
|February 5, 2013
PubMed

Insights

Interleukin 17 (IL-17) gene variations were studied for their link to dilated cardiomyopathy (DCM) risk in a Chinese population. While no overall association was found, one IL-17F polymorphism showed a potential link in male patients.

Area of Science:

  • Genetics
  • Cardiology
  • Immunology

Background:

  • Dilated cardiomyopathy (DCM) is a leading cause of heart failure and sudden cardiac death.
  • Interleukin 17 (IL-17) is a pro-inflammatory cytokine implicated in various disease processes.
  • Understanding genetic predispositions to DCM is crucial for risk stratification and management.

Purpose of the Study:

  • To investigate the association between IL-17A and IL-17F gene polymorphisms and the risk of developing DCM.
  • To evaluate specific single nucleotide polymorphisms (SNPs) within the IL-17A and IL-17F genes.
  • To assess these genetic factors in a Chinese Han population.

Main Methods:

  • A case-control study design was employed.
  • 288 DCM patients and 421 healthy controls were recruited.
  • TaqMan® SNP Genotyping Assay was used to analyze IL-17A (rs2275913) and IL-17F (rs763780) polymorphisms.

Main Results:

  • No significant differences in genotypic or allelic frequencies were observed between DCM patients and controls overall.
  • Stratified analysis indicated a potential association between IL-17F SNP rs763780 and DCM risk in male patients under a dominant genetic model (p=0.031, OR=1.83).
  • The tested IL-17A SNP rs2275913 showed no association with DCM in the studied population.

Conclusions:

  • The studied IL-17A and IL-17F gene polymorphisms (rs2275913 and rs763780) are not generally associated with DCM risk in the Chinese population.
  • A specific IL-17F polymorphism (rs763780) may have a role in DCM susceptibility among males, warranting further investigation.
  • These findings contribute to understanding the genetic landscape of DCM and the role of inflammatory cytokines.

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