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Anticentromere-protein-B-DNA complex activities in anticentromere antibody-positive patients

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Abstract

Centromere protein B (CENP-B), which is an alphoid DNA binding protein, is the target antigen in autoimmune disease patients (often those with scleroderma). In this study, we analysed activities of anti-CENP-B-DNA complex in anticentromere antibody (ACA)-positive patients using DNA immunoprecipitation with purified CENP-B. The activities correlated with ACA titres and were closely associated with Raynaud's phenomenon. Patients with CREST symptoms (calcinosis, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly, telangiectasia) showed higher activities than those with no symptoms. Our results suggest that autoimmune responses to native CENP-B may have an important role in the pathogenesis of scleroderma.

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Authors and Affiliations

  1. Department of Dermatology, Nagoya University School of Medicine, 65 Tsuruma-cho, Showa-ku, 466, Nagoya, Japan

    Y. Muro, Y. Matsumoto & M. Ohashi

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  1. Y. Muro
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  2. Y. Matsumoto
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  3. M. Ohashi
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Muro, Y., Matsumoto, Y. & Ohashi, M. Anticentromere-protein-B-DNA complex activities in anticentromere antibody-positive patients. Arch Dermatol Res 284, 396–399 (1992). https://doi.org/10.1007/BF00372069

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  • DOI: https://doi.org/10.1007/BF00372069

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