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Differences in plasma fibrin clot composition in patients with thrombotic antiphospholipid syndrome compared with venous thromboembolism.
Scientific Reports ( IF 3.8 ) Pub Date : 2018-11-23 , DOI: 10.1038/s41598-018-35034-x
Aneta Stachowicz 1, 2 , Michal Zabczyk 3 , Joanna Natorska 3, 4 , Maciej Suski 1 , Rafał Olszanecki 1 , Ryszard Korbut 1 , Jacek R Wiśniewski 2 , Anetta Undas 3, 4
Affiliation  

The prothrombotic fibrin clot phenotype has been reported in patients with thrombotic antiphospholipid syndrome (APS) and venous thromboembolism (VTE). Protein composition of plasma fibrin clots in APS has not been studied. We evaluated 23 patients with thrombotic APS, 19 with VTE alone, and 20 well-matched controls. A proteomic analysis of fibrin clots generated from citrated plasma was based on liquid chromatography-mass spectrometry. Plasma levels of thrombospondin-1 (TSP1), apolipoprotein(a), A-I, and B-100, complement components (C)3a, C5b-C9, histidine-rich glycoprotein (HRG), and prothrombin were evaluated using immunoenzymatic tests. In plasma fibrin clots of APS patients, compared with VTE subjects and controls, we identified decreased amounts of (pro)thrombin, antithrombin-III, apolipoprotein A-I, and HRG with no differences in plasma levels of antithrombin, prothrombin, along with lower plasma HRG and apolipoprotein A-I. In APS patients, plasma HRG positively correlated with amounts of clot-bound HRG, while apolipoprotein A-I was inversely associated with clot-bound levels of this protein. The most predominant proteins within the clots of APS patients were bone marrow proteoglycan, C5-C9, immunoglobulins, apolipoprotein B-100, platelet-derived proteins, and TSP1. Our study is the first to demonstrate differences in the protein composition of fibrin clots generated from plasma of thrombotic APS patients versus those with VTE alone.

中文翻译:

与静脉血栓栓塞相比,血栓性抗磷脂综合征患者血浆纤维蛋白凝块组成的差异。

血栓性抗磷脂综合征(APS)和静脉血栓栓塞症(VTE)的患者已有血栓前纤维蛋白凝块表型的报道。尚未研究APS中血浆纤维蛋白凝块的蛋白质组成。我们评估了23例血栓性APS患者,19例单纯VTE患者和20例匹配良好的对照。基于液相色谱-质谱法对柠檬酸血浆产生的纤维蛋白凝块进行蛋白质组学分析。使用免疫酶测试评估血浆血小板反应蛋白1(TSP1),载脂蛋白(a),AI和B-100,补体成分(C)3a,C5b-C9,富含组氨酸的糖蛋白(HRG)和凝血酶原的水平。在APS患者的血浆纤维蛋白凝块中,与VTE受试者和对照组相比,我们发现(原)凝血酶,抗凝血酶III,载脂蛋白AI,和HRG,血浆抗凝血酶,凝血酶原水平以及较低的血浆HRG和载脂蛋白AI均无差异。在APS患者中,血浆HRG与血凝块结合的HRG呈正相关,而载脂蛋白AI与血凝块结合的HRG呈负相关。APS患者血凝块中最主要的蛋白质是骨髓蛋白聚糖,C5-C9,免疫球蛋白,载脂蛋白B-100,血小板衍生的蛋白质和TSP1。我们的研究首次证明了由血栓形成的APS患者血浆产生的血纤蛋白凝块的蛋白质组成与仅由VTE产生的血凝蛋白的蛋白质组成存在差异。而载脂蛋白AI与该蛋白的凝块结合水平呈负相关。APS患者血凝块中最主要的蛋白质是骨髓蛋白聚糖,C5-C9,免疫球蛋白,载脂蛋白B-100,血小板衍生的蛋白质和TSP1。我们的研究首次证明了由血栓形成的APS患者血浆产生的血纤蛋白凝块的蛋白质组成与仅由VTE产生的血凝蛋白的蛋白质组成存在差异。而载脂蛋白AI与该蛋白的凝块结合水平呈负相关。APS患者血凝块中最主要的蛋白质是骨髓蛋白聚糖,C5-C9,免疫球蛋白,载脂蛋白B-100,血小板衍生的蛋白质和TSP1。我们的研究首次证明了由血栓形成的APS患者血浆产生的血纤蛋白凝块的蛋白质组成与仅由VTE产生的血凝蛋白的蛋白质组成存在差异。
更新日期:2018-11-26
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