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KMID : 0043320140370081069
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Archives of Pharmacal Research
2014 Volume.37 No. 8 p.1069 ~ p.1078
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Antiplatelet, anticoagulant, and profibrinolytic activities of cudratricusxanthone A
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Yoo Ha-Young
Ku Sae-Kwang
Lee Won-Hwa
Kwak So-Young
Baek Young-Doo
Min Byung-Woon
Jeong Gil-Saeng
Bae Jong-Sup
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Abstract
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Cudratricusxanthone A (CTXA), a natural bioactive compound extracted from the roots of Cudrania tricuspidata Bureau, is known to possess hepatoprotective, antiproliferative and anti-inflammatory activities. However, antiplatelet, anticoagulant, and profibrinolytic properties have not been studied. The anticoagulant activities of CTXA were measured by monitoring activated partial thromboplastin-time (aPTT), prothrombin time (PT), and the activities of cell-based thrombin and activated factor X (FXa). The effects of CTXA on the expressions of plasminogen activator inhibitor type 1 (PAI-1) and tissue-type plasminogen activator (t-PA) were also tested in tumor necrosis factor-α (TNF-α) activated human umbilical vein endothelial cells. Our data showed that CTXA inhibited thrombin-catalyzed fibrin polymerization and platelet aggregation, prolonged aPTT and PT significantly and inhibited the activities and production of thrombin and FXa. CTXA prolonged in vivo bleeding time and inhibited TNF-α induced PAI-1 production. Furthermore, PAI-1/t-PA ratio was significantly decreased by CTXA. Collectively, these results indicate that CTXA possesses antithrombotic activities and suggest that the current study could provide bases for the development of new anticoagulant agents.
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KEYWORD
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Cudratricusxanthone A, Fibrinolysis, Anticoagulant, Prenylated xanthone
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