血栓烷A2受体信号传导及相关抗血小板药物研究进展

摘要

Thromboxane A2 receptors (TPs) widely distribute in different organ systems and localize both on cell membranes and in intracellular structures.TPs are the members of seven-transmembrane G-protein-coupled receptor (GPCR) super family.Historical-ly, the involvement of TPs in platelet functions has received the greatest attention .TPs have the capacity to activate different signaling cascades which regulate platelet shape change , aggregation and secretion response .Currently , anti-platelet drugs primarily act on re-ceptors and /or signaling molecules in activation pathways .The signaling transduction of TPs in platelet contributes to the investigation of the effects of extracts of traditional Chinese medicine on antiplatelet aggregation and the exploration of the action mechanisms .%血栓烷A2受体广泛存在于人体不同的组织器官,属于G蛋白偶联受体超家族中的一种七重跨膜蛋白,在血小板膜上也有分布.血栓烷A2受体激活导致一系列连锁反应也是活化血小板的重要途径之一,进而促进止血和血栓形成.目前,抗血小板药物的研究主要集中在血小板活化通路中的受体和信号分子水平,血栓烷A2受体相关的抗血小板药物也受到广泛关注.了解血小板内该受体下的信号转导,对于探讨相关药物作用机制、开发新型或中药有效成分类抗血小板药物具有重要意义.