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Abstract

Antihistone antibodies were detected in the sera of a randomly selected group of patients with rheumatoid arthritis (RA) and juvenile chronic arthritis (JCA) by an enzyme-linked immunosorbent assay (ELISA) with the five individual histones and by immunoblotting. In ELISA, the overall frequency of antihistone antibodies in RA and JCA was 51 and 44%, respectively. Antibodies present in these serum samples were further studied by ELISA by means of 17 core histone synthetic peptides. The fragment 1-21 of H3 was recognized by 60% of RA sera and by 62% of JCA sera. In addition, at least four terminal or internal peptides of H3 and H4 were recognized by more than a third of JCA sera, while only two of these peptides reacted with 20% of RA sera. Many of the sera that did not show any reactivity with the whole histone reacted with various histone peptides. This finding demonstrates the usefulness of synthetic peptides for identifying autoantibodies.

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Tuaillon, N., Mulier, S., Pasquali, J. L., Bordigoni, P., Youinou, P., & Van Regenmortel, M. H. V. (1990). Antibodies from patients with rheumatoid arthritis and juvenile chronic arthritis analyzed with core histone synthetic peptides. International Archives of Allergy and Immunology, 91(3), 297–305. https://doi.org/10.1159/000235131

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