Understanding the molecular basis of endothelial dysfunction
Recent
insights into the basic mechanisms involved in atherothrombosis
indicate that deleterious alterations of endothelial physiology, also
referred to as endothelial dysfunction, not only represent a key early
step in the development of atherosclerosis, but are also involved in
plaque progression and the occurrence of atherosclerotic complications.
Endothelial dysfunction is characterised by impaired
endothelium-dependent vasodilation, and also by a specific state of
"endothelial activation," which denotes a proinflammatory,
proliferative, and procoagulatory milieu that favours all stages of
atherogenesis. Dysfunction of vascular smooth muscle cells, the major
cell component of the arterial wall, also contributes to
atherosclerosis; impairment in smooth muscle cell turnover and
extra-cellular matrix synthesis are among the major determinants of
atherosclerotic plaque stability.
The aim of this EVGN priority area is to define the molecular mechanisms underlying endothelial and smooth cell dysfunction and discover new preventive strategies.