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Normal endothelial cell function

Centre for Cardiovascular Biology & Medicine, King's College London, Guy's Campus, London SE1 1UL, UK

Endothelial cell functions, primarily involving regulated mediator secretion or altered surface protein expression, are vital for normal homeostasis. Endothelial cells secrete the potent vasodilator and anti-platelet agent prostacyclin and nitric oxide, and also the potent vasoconstrictor peptide endothelin-1; they control the selective adhesion and emigration of leukocytes from the bloodstream; and they are the source of circulating von Willebrand factor, tissue plasminogen activator and type 1 plasminogen activator inhibitor. The properties of healthy endothelium ensure that an antithrombotic and anticoagulant balance is maintained in the bloodstream, and provide a tonic vasodilator action that controls blood flow and pressure on a minute-to-minute basis. Disturbances of normal endothelial function are strongly implicated in the pathogenesis of atherosclerosis and autoimmune vasculitic diseases including lupus.

Key Words: endothelium • nitric oxide • prostacyclin • thrombin • leukocyte • platelet • coagulation • fibrinolysis

Lupus, Vol. 9, No. 3, 183-188 (2000)
DOI: 10.1191/096120300678828299


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