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Related Experiment Videos

Normal levels of soluble E-selectin, soluble intercellular adhesion molecule-1 (sICAM-1), and soluble vascular cell

M C Nash1, A M Wade, V Shah

  • 1Department of Epidemiology and Biostatistics, Institute of Child Health, London, UK.

Clinical and Experimental Immunology
|January 1, 1996
PubMed
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Soluble adhesion molecules like sE-selectin, sICAM-1, and sVCAM-1 decrease with age in children. Levels of von Willebrand factor (vWF) did not change, indicating developmental shifts in these markers.

Area of Science:

  • Pediatric endocrinology
  • Developmental biology
  • Immunology

Background:

  • Cell surface adhesion molecules play roles in inflammation and vascular health.
  • Understanding normal developmental changes in these molecules is crucial for interpreting disease states.
  • Previous studies have not comprehensively assessed age-related changes in multiple adhesion molecules during childhood.

Purpose of the Study:

  • To quantify age-related changes in soluble E-selectin (sE-selectin), soluble intercellular adhesion molecule-1 (sICAM-1), soluble vascular cell adhesion molecule-1 (sVCAM-1), and von Willebrand factor (vWF) in healthy children.
  • To determine if these markers exhibit significant changes during childhood and adolescence.
  • To provide data for establishing age-matched controls in pediatric studies.

Main Methods:

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  • A longitudinal study design was employed, analyzing 238 samples from 81 healthy children aged 9.5 to 15.5 years.
  • Blood samples were collected to assay levels of sE-selectin, sICAM-1, sVCAM-1, and vWF.
  • Multilevel modeling statistical techniques were used to analyze changes over the observed age range.

Main Results:

  • Significant decreases were observed in sE-selectin (17%), sICAM-1 (16%), and sVCAM-1 (10%) levels with increasing age.
  • Levels of von Willebrand factor (vWF) showed no significant age-dependent variation.
  • These findings suggest distinct developmental trajectories for different adhesion molecules during childhood.

Conclusions:

  • Adolescent development is associated with significant declines in circulating levels of sE-selectin, sICAM-1, and sVCAM-1.
  • The lack of age-dependency in vWF suggests differential regulation compared to selectins and ICAMs.
  • Accurate age-matching is essential when evaluating these adhesion molecules in pediatric disease research, highlighting potential developmental influences on their expression and shedding.