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  • Title: Anti-HLA-B27 antibodies in sera from patients with gram-negative bacterial infections.
    Author: Cavender D, Ziff M.
    Journal: Arthritis Rheum; 1986 Mar; 29(3):352-7. PubMed ID: 2421739.
    Abstract:
    Several forms of seronegative polyarthritis are strongly associated with HLA-B27, and a number of microorganisms have been implicated in the etiology of these diseases. To explain the association between HLA-B27 and arthritis initiated by infection with these organisms, it has been proposed that there is immunologic cross-reactivity between the B27 molecule and 1 or more microbial antigens, and that this cross-reactivity leads to tolerance to such infection and/or to the production of anti-HLA-B27 cross-reactive antibodies. Such cross-reactive antibodies were detected in the sera of only 2 of 63 patients recently infected with Shigella flexneri, Campylobacter jejuni, or Yersinia enterocolitica who had highly significant antibody levels against the infecting bacterial species. Most striking was the absence of anti-HLA-B27 antibody in the serum of 16 of 17 patients who developed reactive arthritis following Yersinia infection.
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