title: Humoral immune response to Klebsiella capsular polysaccharides in HLA-B27-positive patients with acute anterior uveitis and ankylosing spondylitis.
abstract: Klebsiella is suggested to trigger ankylosing spondylitis (AS) and acute anterior uveitis (AAU) in HLA-B27-positive individuals. Previous investigations showed an increased antibody response to the Klebsiella capsular types K26, K36, and K50 in sera from HLA-B27-positive AS patients. In the present study the prevalence and titers of antibodies against Klebsiella capsular antigens were measured by means of an ELISA in 32 sera from HLA-B27-positive AAU patients either with (n = 10) or without AS (n = 22) and compared with sera from HLA-B27-negative AS-patients (n = 13). Sera from either HLA-B27-positive (n = 45) or negative (n = 40) healthy individuals served as control. Sera from HLA-B27-positive AAU with or without AS showed significantly higher antibody prevalence and IgG-titers against capsular antigens of the Klebsiella serotypes K26, K36, and K50 when compared with sera from HLA-B27-negative AS patients or with healthy controls. These results might be taken to indicate the predominance of these serotypes in the HLA-B27-associated AS and AAU.
authors.affiliation: Department of Medical Microbiology and Virology, University of Kiel, Germany. Sahly@t-online.de
authors.forename: H
authors.initials: H
authors.lastname: Sahly
authors.forename: R
authors.initials: R
authors.lastname: Podschun
authors.forename: J
authors.initials: J
authors.lastname: Kekow
authors.forename: B
authors.initials: B
authors.lastname: Nölle
authors.forename: W L
authors.initials: WL
authors.lastname: Gross
authors.forename: U
authors.initials: U
authors.lastname: Ullmann
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D016667:Bacterial Capsules / Q000276:immunology*; D005260:Female; D015796:HLA-B27 Antigen / Q000276:immunology*; D006801:Humans; D007709:Klebsiella / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000097:blood / Q000276:immunology* / Q000382:microbiology; D014606:Uveitis, Anterior / Q000097:blood / Q000276:immunology* / Q000382:microbiology
chemical_list: D015796:HLA-B27 Antigen