A STUDY OF ANTIPOLYNUCLEOTIDE ANTIBODIES, ANTI-KLEBSIELLA (K30) ANTIBODIES AND ANTI-DNA ANTIBODY IDIOTYPES IN ANKYLOSING SPONDYLITIS

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Abstract
Recent studies have indicated that both ankylosing spondylitis and the anti-DNA antibodies found in systemic lupus erythematosus may be related to Klebsiella surface antigens. In order to explore these possible relationships further, the sera of 24 patients with ankylosing spondylitis (AS), and 20 controls, have been examined for binding to a wide range of antipolynucleotide antibodies, antibodies binding to the Klebsiella pneumoniae polysaccharide K30 and two DNA antibody idiotypes designated 16/6 and 134. We report that although 21% of the AS patients had IgG ssDNA antibodies it is evident that the aetiopathogenesis of this disease is not through the mechanism of autoantibodies or the common DNA antibody idiotypes tested.