title: Two monoclonal antibodies (DLy-1 and DLy-6) directed against canine lymphocytes.
abstract: Two murine monoclonal antibodies directed against canine lymphocytes are described. DLy-1, raised against puppy thymocytes, and DLy-6, raised against bronchoalveolar lymphocytes, both react with most lymphocytes in peripheral blood, thoracic duct lymph, and bronchoalveolar lavage fluids. DLy-1 also recognizes monocytes and granulocytes. However, it is not reactive with erythrocytes, megakaryocytes, or platelets. Expression of DLy-1 antigen on thymocytes ranged from 5--30%. The distribution of DLy-6 antigens seems to be confined to lymphoid cells. Ten to 60% puppy thymocytes were positive. Interestingly, lymphoblasts formed in response to stimulation with mitogens or alloantigens lacked DLy-6 in contrast to DLy-1 cell surface antigen expression.
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000032:analysis / Q000276:immunology*; D000950:Antigens, Ly / Q000276:immunology*; D000954:Antigens, Surface / Q000276:immunology; D000961:Antilymphocyte Serum / Q000032:analysis / Q000276:immunology*; D002469:Cell Separation; D003601:Cytotoxicity Tests, Immunologic; D004285:Dogs; D005434:Flow Cytometry; D005455:Fluorescent Antibody Technique; D005779:Immunodiffusion; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000145:classification / Q000276:immunology*; D008264:Macrophages / Q000276:immunology; D051379:Mice; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000911:Antibodies, Monoclonal; D000950:Antigens, Ly; D000954:Antigens, Surface; D000961:Antilymphocyte Serum