ICAM1 and VCAM1 polymorphisms, coronary artery calcium, and circulating levels of soluble ICAM-1: the multi-ethnic study of atherosclerosis (MESA)

Atherosclerosis. 2008 Dec;201(2):339-44. doi: 10.1016/j.atherosclerosis.2008.02.031. Epub 2008 Mar 14.

Abstract

Intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) may be important contributors to the development and progression of atherosclerosis. Using a stratified random sample of 2880 participants of the Multi-Ethnic Study of Atherosclerosis we investigated the relationship of 12 ICAM1 and 17 VCAM1 SNPs and coronary artery calcium (CAC) and ICAM1 SNPs and circulating levels of soluble ICAM-1 (sICAM-1). There were no ICAM1 or VCAM1 SNPs significantly associated with CAC in any of the four race/ethnic groups. In a subset of 1451 subjects with sICAM-1 measurements, we observed a significant association with rs5491 in all four race/ethnic groups corroborating previous research that has shown that the T-allele of rs5491 interferes with the monoclonal antibody used to measure sICAM-1 in this study. After excluding all rs5491 T-allele carriers, several ICAM1 SNPs were significantly associated with sICAM-1 levels; rs5496 in African Americans, rs5498 and rs3093030 in European Americans, and rs1799969 in Hispanics. Our results identified ICAM1 polymorphisms that were significantly associated with sICAM-1 level but not CAC, a subclinical marker of atherosclerosis.

Publication types

  • Multicenter Study
  • Research Support, N.I.H., Extramural

MeSH terms

  • Aged
  • Aged, 80 and over
  • Alleles
  • Atherosclerosis / blood*
  • Atherosclerosis / ethnology*
  • Atherosclerosis / genetics*
  • Calcium / metabolism*
  • Coronary Vessels / metabolism*
  • Female
  • Haplotypes
  • Humans
  • Intercellular Adhesion Molecule-1 / blood*
  • Intercellular Adhesion Molecule-1 / genetics*
  • Male
  • Middle Aged
  • Polymorphism, Genetic*
  • Polymorphism, Single Nucleotide
  • Vascular Cell Adhesion Molecule-1 / genetics*

Substances

  • Vascular Cell Adhesion Molecule-1
  • Intercellular Adhesion Molecule-1
  • Calcium