Macrophage and foam cell release of matrix-bound growth factors. Role of plasminogen activation.


We have determined whether macrophage derived-foam cells, a prominent component of the atherosclerotic lesion, express more urokinase-type plasminogen activator (uPA) and whether their ability to generate plasmin stimulates the release of matrix-bound growth factors. Steady state levels of uPA mRNA and both membrane and intracellular uPA activities were… (More)


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