title: Immunocytochemical localization of factor VIII-related antigen in the human umbilical vein.
abstract: The immunocytochemical localization of factor VIII-related antigen in the human umbilical vein was investigated with the light microscopic immunoperoxidase and immunoelectron microscopical protein A-gold techniques. The light microscopic observation showed that peroxidase reactions were found exclusively in the endothelia of the vessel. By the protein A-gold method, immunoreactive gold particles were located in endothelial specific granules (Weibel-Palade bodies). These data suggest that endothelial specific granules are storage sites of factor VIII-related antigen.
mesh_terms: D000941:Antigens / Q000032:analysis*; D005169:Factor VIII / Q000032:analysis / Q000276:immunology*; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D007124:Immunoenzyme Techniques; D007231:Infant, Newborn; D011247:Pregnancy; D014471:Umbilical Veins / Q000276:immunology*; D014841:von Willebrand Factor
chemical_list: D000941:Antigens; D014841:von Willebrand Factor; D005169:Factor VIII