title: Relationship between HLA-DR-expressing cells and T lymphocytes of different subsets in rheumatoid synovial tissue.
abstract: An immunohistochemical double staining technique was used to study the relationships between HLA-DR-expressing, mostly macrophage-like cells, and different populations of T lymphocytes in frozen sections of synovial tissue from patients with inflammatory joint disease, particularly rheumatoid arthritis. Substantial T-lymphocyte infiltration as measured by Leu 1 antibody binding was found, especially adjacent to HLA-DR-expressing cells near the synovial cavity and around small vessels. Most of the T cells reacted with Leu 3a ('helper/inducer'-cell-specific) antibodies, whereas relatively few cells were Leu 2a ('cytotoxic/suppressor' T-cell-specific)-positive.
mesh_terms: D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal; D001172:Arthritis, Rheumatoid / Q000276:immunology* / Q000473:pathology; D002648:Child; D005260:Female; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II; D006801:Humans; D007120:Immunochemistry; D008264:Macrophages / Q000276:immunology; D008297:Male; D008875:Middle Aged; D013583:Synovial Membrane / Q000276:immunology* / Q000473:pathology; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D000911:Antibodies, Monoclonal; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II