Zhao Junyi, Xu Xiafan, Gao Yifei, Yu Yijing, Li Conglei
School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China.
Int J Mol Sci. 2023 Sep 15;24(18):14133. doi: 10.3390/ijms241814133.
The SARS-CoV-2 virus, causing the devastating COVID-19 pandemic, has been reported to affect platelets and cause increased thrombotic events, hinting at the possible bidirectional interactions between platelets and the virus. In this review, we discuss the potential mechanisms underlying the increased thrombotic events as well as altered platelet count and activity in COVID-19. Inspired by existing knowledge on platelet-pathogen interactions, we propose several potential antiviral strategies that platelets might undertake to combat SARS-CoV-2, including their abilities to internalize the virus, release bioactive molecules to interfere with viral infection, and modulate the functions of immune cells. Moreover, we discuss current and potential platelet-targeted therapeutic strategies in controlling COVID-19, including antiplatelet drugs, anticoagulants, and inflammation-targeting treatments. These strategies have shown promise in clinical settings to alleviate the severity of thrombo-inflammatory complications and reduce the mortality rate among COVID-19 patients. In conclusion, an in-depth understanding of platelet-SARS-CoV-2 interactions may uncover novel mechanisms underlying severe COVID-19 complications and could provide new therapeutic avenues for managing this disease.
据报道,引发毁灭性新冠疫情的严重急性呼吸综合征冠状病毒2(SARS-CoV-2)会影响血小板并导致血栓形成事件增加,这暗示了血小板与该病毒之间可能存在双向相互作用。在这篇综述中,我们讨论了新冠病毒疾病(COVID-19)中血栓形成事件增加以及血小板计数和活性改变的潜在机制。受血小板与病原体相互作用现有知识的启发,我们提出了血小板可能用于对抗SARS-CoV-2的几种潜在抗病毒策略,包括它们内化病毒的能力、释放生物活性分子以干扰病毒感染的能力以及调节免疫细胞功能的能力。此外,我们讨论了目前以及潜在的针对血小板的治疗策略在控制COVID-19方面的作用,包括抗血小板药物、抗凝剂和针对炎症的治疗方法。这些策略在临床环境中已显示出有望减轻血栓炎症并发症的严重程度并降低COVID-19患者的死亡率。总之,深入了解血小板与SARS-CoV-2的相互作用可能揭示重症COVID-19并发症的新机制,并可为管理这种疾病提供新的治疗途径。