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  • Title: Characterization of circulating Yersinia-specific immune complexes in patients with yersiniosis.
    Author: Lahesmaa-Rantala R, Granfors K, Lehtonen OP, Toivanen A.
    Journal: Clin Immunol Immunopathol; 1987 Feb; 42(2):202-10. PubMed ID: 2948750.
    Abstract:
    The size of immune complexes (ICs) containing Yersinia enterocolitica antigens was studied by size exclusion high-pressure liquid chromatography and sucrose density gradient ultracentrifugation in sera of patients with recent yersiniosis. The ICs detected were relatively small, i.e., of equal size to or slightly larger than the corresponding anti-Yersinia antibodies. The size of the ICs was equal in the patients with Yersinia-triggered reactive arthritis and in those recovering without complications. No changes were observed during a follow-up. The equal size of ICs in the patients with and without arthritis also suggests that antigens and antibodies involved are similar in both patient groups. Taken together with our earlier findings indicating occurrence of high concentrations of Yersinia IgM ICs in the arthritic patients, the present results suggest that Yersinia--IgM ICs have a role in the pathogenesis of Yersinia-triggered reactive arthritis.
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