title: Immunological features of HLA-B27 anterior uveitis.
abstract: Analysis of the immunological features of anterior uveitis (AU) revealed a dichotomy of abnormalities defined in terms of the HLA-B27 status of the patient. HLA-B27-positive AU was characterised by the occurrence of iris autoantibodies and an absolute T cell lymphopenia during active disease which returned to normal with recovery. This phenomenon was not observed in HLA-B27-negative AU or in controls and could not be attributed to antilymphocyte antibodies as these were not detected. Furthermore, there were no changes in T-cell subsets (helper and suppressor T lymphocytes). Compared with HLA-B27-positive AU patients, the HLA-B27-negative group demonstrated elevated IgE levels and increased prevalence of smooth muscle autoantibodies.
mesh_terms: D000293:Adolescent; D000328:Adult; D001323:Autoantibodies / Q000032:analysis*; D002648:Child; D005260:Female; D006680:HLA Antigens / Q000276:immunology*; D006801:Humans; D007158:Immunologic Techniques; D008297:Male; D008875:Middle Aged; D014606:Uveitis, Anterior / Q000276:immunology*
chemical_list: D001323:Autoantibodies; D006680:HLA Antigens