Abstract

In this study we have shown that dexamethasone induces vasocortin-like proteins in bovine endothelial cells as well as in the bovine aortic endothelial cell line, GM 7373. Vasocortin-like proteins have been characterized by their ability to mimic the glucocorticoid inhibition of rat dextran oedena and histamine release induced by concanavalin-A in rat mast cells. Following partial purification of these proteins by gel filtration, vasocortin activity was found to be associated to proteins with molecular weight between 20–35 kD. This study showed that dexamethasone induces vasocortin-like proteins in endothelial cells and suggests that endothelial cells are target cells of glucocorticoid activity in vascular tissue.

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