{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T10:11:20Z","timestamp":1793441480345,"version":"4.5.0"},"reference-count":33,"publisher":"The Journal of Rheumatology","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"published-print":{"date-parts":[[2012,11]]},"abstract":"<jats:sec><jats:title>Objective.<\/jats:title><jats:p>Antinuclear antibodies (ANA) are a serological hallmark of systemic autoimmune rheumatic diseases (SARD) such as systemic lupus erythematosus (SLE). While a number of ANA patterns detected by indirect immunofluorescence (IIF) have diagnostic significance, autoantibodies producing the dense fine speckled (DFS) pattern have been reported to be more prevalent in healthy individuals than in SARD.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods.<\/jats:title><jats:p>Sequential samples submitted for ANA testing were screened for anti-DFS antibodies by IIF (n = 3263). Samples with the DFS pattern were tested for anti-DFS70\/lens epithelium\u2013derived growth factor (LEDGF) antibodies by ELISA and by a novel chemiluminescence assay (CIA, Quanta Flash DFS70). Sera from patients with various diseases and healthy individuals were tested for anti-DFS70\/LEDGF antibodies by CIA. A cohort of 251 patients with SLE was used to analyze serological and clinical associations of anti-DFS70 antibodies.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results.<\/jats:title><jats:p>The frequency of anti-DFS antibodies by IIF was 1.62%. The prevalence of anti-DFS70\/LEDGF antibodies as detected by CIA in the different cohorts was 8.9% in healthy individuals, 2.8% in SLE, 2.6% in rheumatoid arthritis, 4.0% in asthma, 5.0% in interstitial cystitis, 1.7% in Graves\u2019 disease, and 6.0% in Hashimoto\u2019s thyroiditis. Of note, the prevalence of anti-DFS70\/LEDGF antibodies was significantly higher in healthy individuals compared to patients with SARD (p = 0.00085). In SLE results, anti-DFS70\/LEDGF antibodies were not significantly associated with clinical features or other autoantibodies typically found in SLE. Only 1\/7 SLE sera showed anti-DFS70\/LEDGF, but no other autoantibody reactivity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion.<\/jats:title><jats:p>\u201cMonospecific\u201d anti-DFS70\/LEDGF antibodies may represent a biomarker for differentiating SARD from non-SARD individuals, but there is a need for a reliable assay to ensure reactivity to DFS70.<\/jats:p><\/jats:sec>","DOI":"10.3899\/jrheum.120598","type":"journal-article","created":{"date-parts":[[2012,9,2]],"date-time":"2012-09-02T00:47:29Z","timestamp":1346546849000},"page":"2104-2110","source":"Crossref","is-referenced-by-count":141,"title":["Anti-DFS70\/LEDGF Antibodies Are More Prevalent in Healthy Individuals Compared to Patients with Systemic Autoimmune Rheumatic 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