Ultrastructural demonstration of cell coat on the cell surfaces of normal human oesophageal epithelium |
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Authors: | Kathleen R. Logan D. Hopwood G. Milne |
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Affiliation: | (1) Departments of Medicine and Pathology, Ninewells Hospital and Medical School, Dundee, Scotland |
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Abstract: | Synopsis The cell coat in human oesophageal biopsies was studied with Alcian Blue, Ruthenium Red, Safranin O, colloidal iron and the ferrocyanide-osmium tetroxide techniques. Alcianophilic material was found on the cell surface of the basal, prickle cell and functional layers, being most abundant on the superficial cells where it appeared as a continuous coat. In the deeper layers, it tended to have a particulate distribution. Some membrane-coating granules were alcianophilic. Ruthenium Red had a particulate distribution over all cell surfaces. Intercellular debris was also stained. Safranin O produced no staining. Colloidal iron stained the cell coat in a particulate manner. The ferrocyanide-osmium technique showed a uniform filamentous cell coat. The oesophageal epithelial cell coats are, in part, acid mucosubstances which, on the surface cells, may have a protective function. |
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