内毒素血症与血小板:非酒精性脂肪性肝病肝内微血栓形成的两个因素

Endotoxemia and Platelets: 2 Players of Intrahepatic Microthrombosis in NAFLD.

作者信息

Violi Francesco, Pastori Daniele, Pignatelli Pasquale, Cammisotto Vittoria

机构信息

Mediterranea Cardiocentro-Napoli, Naples, Italy.

Department of Clinical Internal, Anaesthesiologic and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.

出版信息

JACC Basic Transl Sci. 2023 Sep 27;9(3):404-413. doi: 10.1016/j.jacbts.2023.07.003. eCollection 2024 Mar.

Abstract

Gut dysbiosis-related intestinal barrier dysfunction with increased translocation of bacterial products such as lipopolysaccharide (LPS) into systemic circulation is emerging as pathogenic factor of nonalcoholic fatty liver disease (NAFLD). Experimental and clinical studies suggested a potential role of LPS as a trigger eliciting in situ liver inflammation upon interaction with its receptor toll-like receptor 4. Also, LPS has been reported to prime platelets to respond to the common agonists indicating that it behaves as a prothrombotic molecule. Of note, recent studies suggested platelet-related intrahepatic thrombosis triggered by LPS as a mechanism implicated in the process of liver inflammation. This review describes: 1) the impact of gut barrier dysfunction and endotoxemia in the process of NAFLD; 2) the relationship between endotoxemia and platelet activation in NAFLD; 3) clinical evidence for the use of antiplatelet drugs in NAFLD/nonalcoholic steatohepatitis patients; and 4) the potential therapeutic approach to modulate endotoxemia and eventually platelet activation.

摘要

与肠道菌群失调相关的肠屏障功能障碍,以及细菌产物如脂多糖(LPS)向体循环的易位增加,正逐渐成为非酒精性脂肪性肝病(NAFLD)的致病因素。实验和临床研究表明,LPS与其受体Toll样受体4相互作用时,可能作为触发原位肝脏炎症的诱因。此外,据报道LPS可使血小板对常见激动剂产生反应,表明其具有促血栓形成分子的作用。值得注意的是,最近的研究表明,LPS引发的血小板相关性肝内血栓形成是肝脏炎症过程中的一种机制。本综述描述了:1)肠道屏障功能障碍和内毒素血症在NAFLD过程中的影响;2)NAFLD中内毒素血症与血小板活化之间的关系;3)在NAFLD/非酒精性脂肪性肝炎患者中使用抗血小板药物的临床证据;4)调节内毒素血症并最终调节血小板活化的潜在治疗方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a3e/10978333/2fdd812c72a7/ga1.jpg

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