title: Ultrastructure of lymphocyte subsets and of activated lymphocytes in type 1 diabetes as defined by monoclonal antibodies and the immunogold technique.
abstract: The ultrastructure of peripheral blood lymphocyte subsets and activated lymphocytes from 5 patients with recent onset insulin-dependent diabetes as identified by monoclonal antibodies (CD4, CD8 and 4F2) and labelled with gold coupled goat anti-mouse IgG are described and depicted. Electron microscopy revealed no differences in appearance between investigated lymphocyte subsets at the single cell level. Activated lymphocytes as defined by an early activation antigen (4F2) do not always have a characteristic appearance nor do they show morphological signs of activation in all cases. We would conclude that it is not possible to recognize different lymphocyte subsets based only on their ultrastructure.
mesh_terms: D000911:Antibodies, Monoclonal; D003922:Diabetes Mellitus, Type 1 / Q000276:immunology / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D007694:Killer Cells, Natural / Q000276:immunology / Q000648:ultrastructure; D008214:Lymphocytes / Q000145:classification / Q000276:immunology / Q000648:ultrastructure*; D009940:Organoids / Q000648:ultrastructure
chemical_list: D000911:Antibodies, Monoclonal