首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Anti-β2 glycoprotein I (β2GPI) autoantibodies recognize an epitope on the first domain of β2GPI
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Anti-β2 glycoprotein I (β2GPI) autoantibodies recognize an epitope on the first domain of β2GPI

机译:抗β2糖蛋白I(β2GPI)自身抗体识别β2GPI第一个结构域上的表位

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摘要

Anticardiolipin (aCL) autoantibodies are as- sociated with thrombosis, recurrent fetal loss, and thrombo- cytopenia. Only aCL found in autoimmune disease require the participation of the phospholipid binding plasma protein β2 glycoprotein I (?2GPI) for antibody binding and now are called anti-β2GPI. The antigenic specificity of aCL affinity purified from 11 patients with high titers was evaluated in an effort to better understand the pathophysiology associated with aCL. Seven different recombinant domain-deleted mu- tants of human β2GPI, and full length human β2GPI (wild- type), were used in competition assays to inhibit the autoan- tibodies from binding to immobilized wild-type β2GPI.
机译:抗心磷脂(aCL)自身抗体与血栓形成,反复胎儿丢失和血小板减少症相关。只有在自身免疫性疾病中发现的aCL才需要磷脂结合血浆蛋白β2糖蛋白I(β2GPI)参与抗体结合,现在被称为抗β2GPI。为了更好地了解与aCL相关的病理生理,对从11位高滴度的患者中纯化的aCL亲和力的抗原特异性进行了评估。在竞争分析中使用了7种不同的重组人β2GPI缺失结构域的突变体和全长人类β2GPI(野生型),以抑制自身抗体与固定的野生型β2GPI结合。

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