The simultaneous acute release of tissue-type plasminogen activator and von Willebrand factor in the perfused rat hindleg region
article
In perfused rat hindlegs, platelet-activating factor and bradykinin induced the acute release of both tissue-type plasminogen activator (t-PA) and von Willebrand Factor (vWF). The time course of release was similar for both proteins, and the amounts of t-PA and vWF released under various conditions were closely correlated. Release of both t-PA and vWF required extracellular calcium, and could be induced by the calcium ionophore A-23187. Protein synthesis was not required for release to occur. Phorbol myristate acetate also induced release of t-PA and vWF, though with a different time course; DDAVP was inactive. The results suggest that the release of t-PA, and that of vWF, are closely linked at the cellular level.
Topics
TNO Identifier
231018
ISSN
03406245
Source
Thrombosis and Haemostasis, 63(3), pp. 454-458.
Pages
454-458
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