Elevated Plasma MBL Levels Are Associated With Risk of Future Venous Thromboembolism: The HUNT Study.

IF 7.4 1区 医学 Q1 HEMATOLOGY
Christabel Esi Damoah, Solveig M Valderhaug, Omri Snir, Kristian Dalsbø Hindberg, Sigrid K Brækkan, Steven P Grover, Therese H Nøst, Péter Gál, Gábor Pál, Christian Jonasson, Peter Garred, Tom Eirik Mollnes, Kristian Hveem, John-Bjarne Hansen
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引用次数: 0

Abstract

Background: MBL (mannose-binding lectin), a pattern recognition molecule circulating in complex with MASPs (MBL-associated serine proteases), activates the lectin complement pathway and facilitates thrombin generation upon binding to specific moieties on pathogens or altered host cells. We aimed to investigate the association between plasma MBL levels and risk of future venous thromboembolism (VTE) and to explore the effect of MBL-MASP-1/2 complexes on thrombin generation.

Methods: We conducted a population-based case-cohort (294 VTE patients, 1066 sex- and age-weighted subcohorts) derived from HUNT (The Trøndelag Health Study). Plasma MBL levels were measured using the SomaScan 7k aptamer-based platform. Cox proportional hazards regression models were used to estimate hazard ratios for VTE across quartiles of MBL levels. Thrombin generation in plasma induced by MBL-MASPs complexes was assessed in vitro.

Results: Subjects with MBL levels in the highest quartile had a 79% higher risk of overall VTE (hazard ratio, 1.79 [95% CI, 1.23-2.61]) than those with MBL levels in the lowest quartile after multivariable adjustments. The risk estimates by high plasma MBL were particularly strong for deep vein thrombosis (hazard ratio, 2.50 [95% CI, 1.42-4.37]) and unprovoked VTE (hazard ratio, 2.81 [95% CI, 1.53-5.16]). MBL-MASP-1/2 complexes promoted complement activation and thrombin generation, and monospecific inhibitors abolished their enzymatic activity.

Conclusions: Our findings support the notion that high plasma MBL levels are associated with an increased risk of future VTE and suggest that the risk increase is partially mediated through the initiation of thrombin generation by MBL-MASP-1/2 complexes at the site of venous thrombosis formation.

血浆MBL水平升高与未来静脉血栓栓塞的风险相关:HUNT
背景:MBL(甘露糖结合凝集素)是一种模式识别分子,与MASPs(甘露糖结合丝氨酸蛋白酶)一起循环,激活凝集素补体途径,并在与病原体或改变的宿主细胞上的特定片段结合时促进凝血酶的产生。我们旨在研究血浆MBL水平与未来静脉血栓栓塞(VTE)风险之间的关系,并探讨MBL- masp -1/2复合物对凝血酶生成的影响。方法:我们进行了一项基于人群的病例队列研究(294例静脉血栓栓塞患者,1066个性别和年龄加权亚队列),来源于HUNT (The Trøndelag Health Study)。使用基于SomaScan 7k适配体的平台测量血浆MBL水平。Cox比例风险回归模型用于估计MBL水平各四分位数的VTE风险比。体外评估MBL-MASPs复合物诱导血浆凝血酶生成。结果:经多变量调整后,MBL水平在最高四分位数的受试者比MBL水平在最低四分位数的受试者发生VTE的风险高79%(风险比,1.79 [95% CI, 1.23-2.61])。高血浆MBL对深静脉血栓形成(风险比,2.50 [95% CI, 1.42-4.37])和非诱发性静脉血栓栓塞(风险比,2.81 [95% CI, 1.53-5.16])的风险估计尤其强。MBL-MASP-1/2复合物促进补体活化和凝血酶生成,单特异性抑制剂抑制其酶活性。结论:我们的研究结果支持高血浆MBL水平与未来VTE风险增加相关的观点,并表明风险增加部分是通过MBL- masp -1/2复合物在静脉血栓形成部位启动凝血酶生成来介导的。
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来源期刊
CiteScore
15.60
自引率
2.30%
发文量
337
审稿时长
2-4 weeks
期刊介绍: The journal "Arteriosclerosis, Thrombosis, and Vascular Biology" (ATVB) is a scientific publication that focuses on the fields of vascular biology, atherosclerosis, and thrombosis. It is a peer-reviewed journal that publishes original research articles, reviews, and other scholarly content related to these areas. The journal is published by the American Heart Association (AHA) and the American Stroke Association (ASA). The journal was published bi-monthly until January 1992, after which it transitioned to a monthly publication schedule. The journal is aimed at a professional audience, including academic cardiologists, vascular biologists, physiologists, pharmacologists and hematologists.
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