血小板作为预防动脉粥样硬化的治疗靶点。
Platelets as therapeutic targets to prevent atherosclerosis.
机构信息
University Hospital, Medical Clinic II, University Heart Center, Lübeck, 23538, Germany; DZHK (German Research Centre for Cardiovascular Research), Partner Site Hamburg/Lübeck/Kiel, 23562, Lübeck, Germany.
University Hospital, Medical Clinic II, University Heart Center, Lübeck, 23538, Germany.
出版信息
Atherosclerosis. 2020 Aug;307:97-108. doi: 10.1016/j.atherosclerosis.2020.05.018. Epub 2020 Jun 13.
Cardiovascular disease remains the main cause of death worldwide. For this reason, strategies for the primary prevention of atherosclerosis and atherosclerosis-related pathologies like stroke or myocardial infarction are needed. Platelets are key players of atherosclerosis-related vascular thrombotic pathologies and their role as targets in secondary prevention of atherosclerosis-related complications is uncontested. However, platelets also play an important role in the initiation and progression of atherosclerosis. Currently, though, there is no generally valid recommendation for the use of antiplatelet therapy in primary prevention of cardiovascular disease. Recent clinical studies have shown that the benefit from antiplatelet therapy in primary prevention is counteracted by the entailed bleeding risk. This review addresses the important role platelets play in initiating and sustaining vascular inflammation, which drives atherosclerosis. Specifically, platelet-lipid interactions as well as platelet-endothelium interactions in the context of atherosclerosis are illustrated. We also depict how platelets help recruit immune cells like monocytes, neutrophils or dendritic cells to the subendothelial space. Finally, we portray the role of complement and platelets in atherosclerosis. Platelets appear to act as mediators of tissue homeostasis and may also modulate the microenvironment of the atherosclerotic plaque. Overall, this review addresses the role of platelets in atherosclerosis with particular focus on potential targets for pharmacological interventions into platelet functions distinct from aggregation. By eliminating the bleeding risk of antiplatelet therapy, platelets are likely to regain a role in primary prevention of cardiovascular disease.
心血管疾病仍然是全球主要的死亡原因。因此,需要制定策略来预防动脉粥样硬化和与动脉粥样硬化相关的病理,如中风或心肌梗死。血小板是与动脉粥样硬化相关的血管血栓形成病理的关键参与者,其作为二级预防与动脉粥样硬化相关并发症的靶点的作用是无可争议的。然而,血小板在动脉粥样硬化的发生和发展中也起着重要作用。尽管如此,目前对于抗血小板治疗在心血管疾病一级预防中的应用还没有普遍有效的建议。最近的临床研究表明,抗血小板治疗在一级预防中的获益被所涉及的出血风险所抵消。这篇综述讨论了血小板在启动和维持血管炎症中的重要作用,而血管炎症则推动了动脉粥样硬化的发展。具体而言,阐述了血小板与脂质相互作用以及血小板与内皮细胞相互作用在动脉粥样硬化中的作用。我们还描述了血小板如何帮助招募免疫细胞,如单核细胞、中性粒细胞或树突状细胞到血管内皮下腔。最后,我们描述了补体和血小板在动脉粥样硬化中的作用。血小板似乎作为组织内稳态的调节剂发挥作用,也可能调节动脉粥样硬化斑块的微环境。总的来说,本综述探讨了血小板在动脉粥样硬化中的作用,特别关注与聚集不同的血小板功能的药理学干预的潜在靶点。通过消除抗血小板治疗的出血风险,血小板可能在心血管疾病的一级预防中重新发挥作用。