Reprogrammed streptokinases develop fibrin-targeting and dissolve blood clots with more potency than tissue plasminogen activator
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چکیده
منابع مشابه
Potency and Selectivit Than Tissue-Type Plasminogen Activator
Background. Early intervention with thrombolytic agents has been shown unequivocally to reduce mortality after acute myocardial infarction. Presently used agents have disadvantages such as short half-life, immunogenicity, hypotension, and bleeding complications. Therefore, there is a need to develop improved thrombolytic drugs with novel mechanisms of action leading to improved properties. Meth...
متن کاملHighly stable plasminogen activator inhibitor type one (VLHL PAI-1) protects fibrin clots from tissue plasminogen activator-mediated fibrinolysis.
Plasminogen activator inhibitor-1 (PAI-1) is the major specific inhibitor of tissue-type plasminogen activator (tPA) which mediates fibrin clot lysis through activation of plasminogen. Wild-type-PAI-1 (wPAI-1) is rapidly converted to the latent form (half-life of approximately 2 h) and loses its ability to inhibit tPA. We developed a very long half-life PAI-1 (VLHL PAI-1), a recombinant protein...
متن کاملUltrasound affects distribution of plasminogen and tissue-type plasminogen activator in whole blood clots in vitro.
Ultrasound of 2 MHz frequency and 1.2 W/cm(2) acoustic intensity was applied to examine the effect of sonication on recombinant tissue-type plasminogen activator (rt-PA)-induced thrombolysis as well as on the distribution of plasminogen and t-PA within whole blood clots in vitro. Thrombolysis was evaluated quantitatively by measuring clot weight reduction and the level of fibrin degradation pro...
متن کاملExtravascular fibrin, plasminogen activator, plasminogen activator inhibitors, and airway hyperresponsiveness.
Mechanisms underlying airway hyperresponsiveness are not yet fully elucidated. One of the manifestations of airway inflammation is leakage of diverse plasma proteins into the airway lumen. They include fibrinogen and thrombin. Thrombin cleaves fibrinogen to form fibrin, a major component of thrombi. Fibrin inactivates surfactant. Surfactant on the airway surface maintains airway patency by lowe...
متن کاملBinding of tissue-plasminogen activator to fibrin: effect of ultrasound.
Ultrasound reversibly alters the structure of polymerized fibrin, an effect that could influence tissue-plasminogen activator (t-PA) binding. We have, therefore, characterized the effects of ultrasound on binding of t-PA to fibrin using a novel system in which radiolabeled, active-site blocked, single chain tissue-plasminogen activator flowed through a fibrin gel at constant rate, and specific ...
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ژورنال
عنوان ژورنال: Journal of Thrombosis and Haemostasis
سال: 2009
ISSN: 1538-7933,1538-7836
DOI: 10.1111/j.1538-7836.2009.03491.x