6 rezultatus
Two thorium dioxide-induced murine hemangioendotheliomas, 42021 TCT and 44347 TST, were grown subcutaneously (for up to 22 and 15 passages respectively) or intracranially (single passage) and were adapted to culture as a monolayer and, in a limited fashion, in an organ culture system or in rotary
In order to shed more light on the controversial tissue histogenesis of the stromal cells (SC), light microscopic, immunohistochemical and electron microscopic studies were performed on surgical specimens of hemangioblastomas (36, 26 and 7 cases, respectively). SC were immunoreactive for vimentin,
Ulex europaeus agglutinin I (UEA-I) is a plant lectin which binds specifically to alpha-L-fucose moieties on the surface glycoproteins of human endothelial cells. The binding is completely inhibited by preincubation of the lectin with fucose. UEA-I can be conjugated directly to fluorescein or
Previous studies using immunohistochemical methods to determine the presence of glial fibrillary acidic protein (GFAP) and Factor VIII-related antigen (FVIIIR:Ag) in stromal cells of capillary hemangioblastomas have yielded conflicting results with respect to the possible astrocytic and endothelial
Two cases of the rare cellular variant of the solitary capillary haemangioblastoma are reported. On MR study both tumors appeared as cerebellar contrast-enhancing masses, without evidence of intra- or perilesional blood vessels. Histologically, they showed compact groups of polygonal or rectangular
The distribution of two endothelial cell markers Factor-VIII-related antigen and Ulex europaeus agglutinin was examined by immunoperoxidase and immunofluorescence techniques in paraffin-embedded specimens representing the three main types of angiogenic neoplasms of the nervous system,