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Thrombophilia Associated with Anti-DFS70 Autoantibodies

Abstract : Context: Anti-DFS70 antibodies are the most frequent antinuclear antibodies (ANA) found in healthy individuals. We assessed the clinical significance of the presence of anti-DFS70 antibodies. Methods: We defined a group of patients (n = 421) with anti-DFS70 antibodies and a group of patients (n = 63) with a history of idiopathic arterial and/or venous thrombotic disease and/or obstetric complication (i.e. ≥ 3 miscarriages, fetal death or premature birth with eclampsia). Anti-DFS70 antibodies prevalence was also assessed in a cohort of 300 healthy blood donors. Results: The prevalence of thrombotic disease and/or obstetric complication in the 421 patients with anti-DFS70 antibodies was 13.1% (n = 55) and the prevalence of connective tissue disease was 19% (n = 80). Among the 63 patients with a history of thrombosis and/or obstetric complications, 7 (11.1%) had anti-DFS70 antibodies and among the latter, 5 had no common thrombophilic factor. In contrast, the prevalence of anti-DFS70 antibodies was of 3.0% (9 out of 300) in healthy donors. Finally, the Activated Partial Thromboplastin Time (aPTT) ratio of patients with a history of thrombosis and anti-DFS70 antibodies was lower than the aPTT ratio of other patients, suggesting that thrombotic patients with anti-DFS70 antibodies may have a hypercoagulable state. Conclusion: We described here for the first time an immune procoagulant state involving anti-DFS70 antibodies.
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Julien Marlet, Annick Ankri, Jean-Luc L Charuel, Pascale Ghillani-Dalbin, Amélie Perret, et al.. Thrombophilia Associated with Anti-DFS70 Autoantibodies. PLoS ONE, Public Library of Science, 2015, 10 (9), pp.e0138671. ⟨10.1371/journal.pone.0138671⟩. ⟨inserm-02872758⟩



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