Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets

Arterial occlusive disorders are a leading cause of human morbidity. We hypothesized that ectopic expression of fibrinolytic proteins in platelets could be used to favorably alter the hemostatic balance at sites of thrombosis. To test our hypothesis, we directed murine urokinase-type plasminogen act...

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Authors: Kufrin, Dubravka; Eslin, Donald; Bdeir, Khalil; Murciano, Juan Carlos; Kuo, Alice; Kowalska, M. Anna; Degen, Jay L.; Sachais, Bruce S.; Cines, Douglas B.; Poncz, Mortimer
Format: Article
Publication date:2003
Country:España
Institution:Universidad Alfonso X el Sabio
Repository:Repositorio Institucional de la Universidad Alfonso X el Sabio
Language:English
OAI Identifier:oai:archive.uax.com:20.500.12080/45218
Online Access:https://hdl.handle.net/20.500.12080/45218
Access Level:Open access
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author Kufrin, Dubravka
author2 Eslin, Donald
Bdeir, Khalil
Murciano, Juan Carlos
Kuo, Alice
Kowalska, M. Anna
Degen, Jay L.
Sachais, Bruce S.
Cines, Douglas B.
Poncz, Mortimer
author2_role author
author
author
author
author
author
author
author
author
author_browse Bdeir, Khalil
Cines, Douglas B.
Degen, Jay L.
Eslin, Donald
Kowalska, M. Anna
Kufrin, Dubravka
Kuo, Alice
Murciano, Juan Carlos
Poncz, Mortimer
Sachais, Bruce S.
author_facet Kufrin, Dubravka
Eslin, Donald
Bdeir, Khalil
Murciano, Juan Carlos
Kuo, Alice
Kowalska, M. Anna
Degen, Jay L.
Sachais, Bruce S.
Cines, Douglas B.
Poncz, Mortimer
author_role author
collection Repositorio Institucional de la Universidad Alfonso X el Sabio
description Arterial occlusive disorders are a leading cause of human morbidity. We hypothesized that ectopic expression of fibrinolytic proteins in platelets could be used to favorably alter the hemostatic balance at sites of thrombosis. To test our hypothesis, we directed murine urokinase-type plasminogen activator transgene expression to platelets using a platelet factor 4 promoter. Urokinase was selectively expressed and stored in the platelets of these mice. These transgenic mice had altered platelet biology and a bleeding diathesis similar to that seen in patients with Quebec platelet disorder, affirming the role of ectopic urokinase expression as the etiology of this inherited disease. These mice were resistant to the development of occlusive carotid artery thrombosis in the absence of systemic fibrinolysis and displayed rapid resolution of pulmonary emboli. Moreover, transfusion of urokinase-expressing platelets into wild-type mice prevented formation of occlusive arterial thrombi. These studies show the feasibility of delivering fibrinolytic agents to sites of incipient thrombus formation through selective storage in platelets and offer a new strategy to prevent thrombosis and hemorrhage.
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oai_identifier_str oai:archive.uax.com:20.500.12080/45218
publishDate 2003
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spelling Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets Kufrin, Dubravka Eslin, Donald Bdeir, Khalil Murciano, Juan Carlos Kuo, Alice Kowalska, M. Anna Degen, Jay L. Sachais, Bruce S. Cines, Douglas B. Poncz, Mortimer Arterial occlusive disorders are a leading cause of human morbidity. We hypothesized that ectopic expression of fibrinolytic proteins in platelets could be used to favorably alter the hemostatic balance at sites of thrombosis. To test our hypothesis, we directed murine urokinase-type plasminogen activator transgene expression to platelets using a platelet factor 4 promoter. Urokinase was selectively expressed and stored in the platelets of these mice. These transgenic mice had altered platelet biology and a bleeding diathesis similar to that seen in patients with Quebec platelet disorder, affirming the role of ectopic urokinase expression as the etiology of this inherited disease. These mice were resistant to the development of occlusive carotid artery thrombosis in the absence of systemic fibrinolysis and displayed rapid resolution of pulmonary emboli. Moreover, transfusion of urokinase-expressing platelets into wild-type mice prevented formation of occlusive arterial thrombi. These studies show the feasibility of delivering fibrinolytic agents to sites of incipient thrombus formation through selective storage in platelets and offer a new strategy to prevent thrombosis and hemorrhage. https://hdl.handle.net/20.500.12080/45218
spellingShingle Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets
Kufrin, Dubravka
title Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets
title_full Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets
title_fullStr Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets
title_full_unstemmed Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets
title_short Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets
title_sort Antithrombotic thrombocytes: ectopic expression of urokinase-type plasminogen activator in platelets
url https://hdl.handle.net/20.500.12080/45218