Abstract
Autocrine and paracrine regulation of vascular endothelial cells by endothelins has been postulated and has been the target of many recent investigations. In the present study, we demonstrated, by affinity labeling, the presence of endothelin-1- and endothelin-3-specific receptors on cultured bovine endothelial cells that secrete endothelin; the endothelin-3 receptor was the major form. Analysis using the GTP analogue guanosine 5'-O- (thiotriphosphate) indicated that these receptors are coupled to G proteins.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Animals
-
Carotid Arteries
-
Cattle
-
Cell Membrane / metabolism
-
Cells, Cultured
-
Endothelins / metabolism*
-
Endothelium, Vascular / metabolism*
-
GTP-Binding Proteins / metabolism*
-
Guanosine 5'-O-(3-Thiotriphosphate) / pharmacology
-
Kinetics
-
Receptors, Cell Surface / drug effects
-
Receptors, Cell Surface / metabolism*
-
Receptors, Endothelin
Substances
-
Endothelins
-
Receptors, Cell Surface
-
Receptors, Endothelin
-
Guanosine 5'-O-(3-Thiotriphosphate)
-
GTP-Binding Proteins