대한의생명과학회지 (Biomedical Science Letters)

  • 제27권4호
  • /
  • Pages.270-276
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  • 2021
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  • 1738-3226(pISSN)
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  • 2288-7415(eISSN)
대한의생명과학회 (The Korean Society for Biomedical Laboratory Sciences)
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Thrombus Formation Inhibition of Esculetin through Regulation of Cyclic Nucleotides on Collagen-Induced Platelets

  • Lee, Dong-Ha (Department of Biomedical Laboratory Science, Molecular Diagnostics Research Institute, Namseoul University)
  • 투고 : 2021.10.05
  • 심사 : 2021.11.22
  • 발행 : 2021.12.31
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초록

Physiological agents trigger a signaling process called "inside-out signaling" and activated platelets promote adhesion, granule release, and conformational changes of glycoprotein IIb/IIIa (αIIb/β3). Activated αIIb/β3 interacts with fibrinogen and initiates a second signaling step called "external signaling". These two signaling pathways can cause hemostasis or thrombosis, and thrombosis is a possible medical problem in arterial and venous vessels, and platelet-mediated thrombosis is a major cause of cardiovascular disease (CVD). Therefore, modulating platelet activity is important for platelet-mediated thrombosis and cardiovascular disease. Esculetin is a coumarin-based physiologically active 6,7-dihydroxy derivative known to have pharmacological activity against obesity, diabetes, renal failure and CVD. Although some studies have confirmed the effects of esculetin in human platelet activation and experimental mouse models, it is not clear how esculetin has antiplatelet and antithrombotic effects. We confirmed the effect and mechanism of action of escultein on human platelets induced by collagen. As a result, esculetin decreased Ca2+ recruitment through upregulation of inositol 1, 4, 5-triphosphate receptor. In addition, esculetin upregulates cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP)-dependent pathways and inhibits fibrinogen binding and thrombus contraction. Our results demonstrate the antiplatelet effect and antithrombotic effect of esculetin in human platelets. Therefore, we suggest that esculetin could be a potential phytochemical for the prevention of thrombus-mediated CVD.

키워드

과제정보

Funding for this paper was provided by Namseoul University year 2021.

참고문헌

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