Assay for pathogenicity of anti-DNA antibodies

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

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435 71, 435 721, 435965, 436518, 436529, G01N 3353

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active

056817002

ABSTRACT:
Assays that are prognostic for patients that will develop nephritis have been developed where patient serum is screened for the presence of anti-dsDNA antibodies that are cross reactive with A and D SnRNP proteins. The assays are based on the use of either peptides containing epitopes bound by the anti-dsDNA antibodies, or the antigens for the antibodies, A and D SnRNP proteins. Therapeutic compositions have also been developed using either antibodies that block the pathogenicity of the anti-dsDNA antibodies, such as the naturally occurring anti-La/SSB and anti-U.sub.1 RNP antibodies that are cross reactive with the anti-dsDNA or using the peptides or A and D proteins to induce tolerance.

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