Pathogenic vs. non-pathogenic anti-PF4/heparin antibodies

نویسندگان

  • Rustem I. Litvinov
  • Serge V. Yarovoi
  • Lubica Rauova
  • Valeri Barsegov
  • Bruce S. Sachais
  • Ann H. Rux
  • Jillian L. Hinds
  • Gowthami M. Arepally
  • Douglas B. Cines
  • John W. Weisel
چکیده

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Distinct specificity and single-molecule kinetics characterize the interaction of pathogenic and non-pathogenic antibodies against platelet factor 4-heparin complexes with platelet factor 4.

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Atomic description of the immune complex involved in heparin-induced thrombocytopenia

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Heparin-dependent and -independent anti-platelet factor 4 autoantibodies in patients with systemic lupus erythematosus.

OBJECTIVE Antibodies that recognize complexes formed by platelet factor 4 (PF4) and heparin are involved in the pathogenesis of heparin-induced thrombocytopenia (HIT). This study was undertaken to investigate the prevalence and clinical correlations of anti-PF4 autoantibodies in patients with SLE. METHODS We studied 118 patients with SLE, 78 with primary immune thrombocytopenia (ITP), 27 with...

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B-cell tolerance regulates production of antibodies causing heparin-induced thrombocytopenia.

Immune complexes consisting of heparin, platelet factor 4 (PF4), and PF4/heparin-reactive antibodies are central to the pathogenesis of heparin-induced thrombocytopenia (HIT). It is as yet unclear what triggers the initial induction of pathogenic antibodies. We identified B cells in peripheral blood of healthy adults that produce PF4/heparin-specific antibodies following in vitro stimulation wi...

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تاریخ انتشار 2013