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Updated: Aug 9, 2026

Adhesion Frequency Assay for In Situ Kinetics Analysis of Cross-Junctional Molecular Interactions at the Cell-Cell Interface
Published on: November 2, 2011
Quantitative genetic analysis of cellular adhesion molecules: the Fels Longitudinal Study
Miryoung Lee1, Stefan A Czerwinski, Audrey C Choh
1Lifespan Health Research Center, Department of Community Health, Wright State University, School of Medicine, 3171 Research Blvd., Dayton, OH 45420, USA. miryoung.lee@wright.edu
Genetic factors significantly influence serum levels of soluble cellular adhesion molecules (sCAMs), which are linked to cardiovascular disease risk. This study found that sCAM concentrations are heritable, with shared genetic control between soluble intercellular adhesion molecule-1 (sICAM-1) and vascular cell adhesion molecule-1 (sVCAM-1).
Area of Science:
- Genetics
- Cardiovascular Disease
- Immunology
Background:
- Circulating inflammatory markers are associated with cardiovascular disease (CVD) risk and obesity.
- Genetic influences on serum levels of inflammatory markers, specifically soluble cellular adhesion molecules (sCAMs), are not well understood.
Purpose of the Study:
- To estimate the heritability (h2) of serum concentrations for four sCAMs: sICAM-1, sVCAM-1, E-selectin (sESEL-1), and P-selectin (sPSEL-1).
- To examine the genetic and environmental correlations among these sCAMs.
Main Methods:
- Utilized a variance components-based maximum likelihood method on data from 121 families (234 men, 270 women) in the Fels Longitudinal Study.
- Adjusted for CVD risk factors like age and smoking during heritability estimation.
- Employed bivariate methods to assess genetic and environmental correlations between sCAMs.
Main Results:
- All four sCAMs exhibited significant heritability: sICAM-1 (h2=0.24+/-0.10), sVCAM-1 (h2=0.22+/-0.10), sESEL-1 (h2=0.50+/-0.11), and sPSEL-1 (h2=0.46+/-0.10).
- A significant genetic correlation (rho(G)=0.63) was observed between sICAM-1 and sVCAM-1, suggesting shared genetic influences.
- Found that genetic effects significantly impact the levels of these four sCAMs.
Conclusions:
- Serum levels of sICAM-1, sVCAM-1, sESEL-1, and sPSEL-1 are significantly influenced by genetic factors.
- sICAM-1 and sVCAM-1 share a common genetic background, indicating a degree of shared genetic control over their serum concentrations.
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