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The CD40 gene polymorphism rs1883832 is associated with risk of acute coronary syndrome in a Chinese case-control

Ming Wang1, Yan Li, Wen Li

  • 1Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, China.

DNA and Cell Biology
|November 25, 2010
PubMed

Insights

A specific gene variant (rs1883832) is linked to increased risk of acute coronary syndrome (ACS) in Chinese individuals. This finding highlights the role of CD40 gene variations in cardiovascular disease development.

Area of Science:

  • Cardiovascular Biology
  • Immunogenetics
  • Molecular Medicine

Background:

  • Atherosclerosis is a chronic inflammatory disease driven by lipids.
  • The immune mediator CD40-CD40L plays a role in atherogenesis.
  • A polymorphism in the CD40 gene (rs1883832) may affect CD40 expression and disease risk.

Purpose of the Study:

  • To investigate the association between the CD40 gene polymorphism (rs1883832) and susceptibility to acute coronary syndrome (ACS) in a Chinese population.
  • To explore the impact of this polymorphism on CD40 expression and the potential effect of fluvastatin.

Main Methods:

  • Case-control study involving 160 ACS patients and 180 controls.
  • Genotyping of the rs1883832 polymorphism using PCR-RFLP and sequencing.
  • Flow cytometry to measure CD40 expression on peripheral blood mononuclear cells.
  • ELISA to determine soluble CD40L levels.
  • In vitro experiments with fluvastatin treatment.

Main Results:

  • The frequency of the C allele for rs1883832 was significantly higher in ACS patients (60.3%) compared to controls (49.4%).
  • ACS patients exhibited increased coexpression of CD40 and soluble CD40L (sCD40L).
  • CC genotype carriers showed higher CD40 expression than CT and TT carriers.
  • Fluvastatin reduced CD40 expression across all genotypes.

Conclusions:

  • The CD40 gene polymorphism rs1883832 is associated with increased susceptibility to ACS in the Chinese population.
  • This polymorphism may influence CD40 production, contributing to atherogenesis.
  • These findings enhance the understanding of inflammatory mechanisms in atherosclerosis.

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