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  • Title: Evidence for endothelial cell origin of vinyl chloride-induced hepatic angiosarcoma.
    Author: Fortwengler HP, Jones D, Espinosa E, Tamburro CH.
    Journal: Gastroenterology; 1981 Jun; 80(6):1415-9. PubMed ID: 6785144.
    Abstract:
    Previous reports of hepatic angiosarcoma have not clearly defined the cellular type from which this tumor arises, as evidenced by the terminology of endothelioma, Kupffer cell sarcoma, endothelial cell sarcoma, and hemangioendothelial sarcoma, etc., which have been used interchangeably. In addition, there has been no consensus on the separate entity of Kupffer and sinusoidal endothelial cells. In the work presented here, evidence for the endothelial cell origin of this tumor is provided by the demonstration of factor VIII, a known endothelial cell marker, in the tumor cells. Fluorescence due to the presence of factor VIII appeared intense in the tumor sinusoidal cells of all four vinyl chloride-associated angiosarcomas studied, whereas normal liver sinusoidal lining cells showed negligible fluorescence.
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