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학술저널
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대한바이러스학회 JOURNAL OF BACTERIOLOGY AND VIROLOGY 大韓바이러스學會誌 제22권 제2호
발행연도
1992.12
수록면
169 - 179 (11page)

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The pathogenesis of disseminated intravascular coagulation (DIC) and bleeding tendency in patients with hemorrhagic fever with renal syndrome (HFRS) is not well understood. In order to explore the pathogenesis of DIC and bleeding tendency in patients with HFRS, human umbilical vein endothelial cell line (ATCC CRL 1730 HUV-EC-C, referred HUVEC) were infected with Hantaan virus 76-118, and then the procoagulant activity of infected HUVEC was investigated. The infection of cultured HUVEC cells with Hantaan virus was revealed by immunofluorescent antibody technique. Plasma coagulation time with total procoagulant activity of infected HUVEC was markedly decreased to 62sec, 54sec, and 97sec after 6hr, 12hr and 18hr respectively in contrast to the normal coagulation time of >200sec. Prothrornbinase complex formation of infected HUVEC was increased to 0.310+0.113/min(O.D.) after 12hr in comparison with the normal control of 0.108+0.047/min (O.D.). Thrombomodulin expression in infected HUVEC was reduced to 27.5 % and 65.6 % after 6hr and 12hr of inoculation respecitively. Activity of platelet adherence on infected HUVEC was increased at 24 hours postinfection compared with normal, uninfected HUVEC. By 72hours postinfection, activity of platelet adherence was decreased to the level of control cells. These results indicated that the tissue factor activity and the formation of prothrombinase complex were markedly increased in HUVEC by the Hantaan virus infection, while the thrombomodulin activity was decreased by infection. And the activity of platelet adherence was increased by infection with Hantaan virus. Thus the infection of endothelial cells with Hantaan virus to could partly responsible for the pathogenesis of DIC and bleeding tendency in patients with HFRS.

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