摘要
背景:脑内出血(ICH)是中风的亚型,对人类造成高发病率和死亡率。 多项研究表明,神经炎症,兴奋性毒性,氧化应激,血栓降解产生的细胞毒性在ICH诱导的继发性脑损伤中起重要作用,有助于神经结局的恶化。 前列腺素E2(PGE2)是在这些进展中通常上调的前列腺素类,被证明通过在ICH后激活EP2受体来调节许多细胞和分子过程。 目的:本研究旨在探讨PGE2生物合成,EP2受体的下游信号通路和EP2受体在ICH诱导的脑损伤中的作用,旨在提供潜在的有效治疗策略。 方法:在PubMed,Medline和Ebase中搜索了大量关于EP2受体和脑内出血的文献。 结果:以前的研究表明,EP2受体通过激活不同的信号通路介导ICH中的双重作用。 EP2受体可以通过cAMP-PKA信号通路诱导神经保护,空间学习和神经可塑性,同时主要通过cAMP-Epac途径加强炎症反应。 此外,cAMP的浓度水平可能是决定哪个下游信号通路被激活的关键因素。 结论:在脑出血的不同阶段,EP2受体通过不同的下游信号通路在脑损伤中起多种作用。
关键词: 脑内出血,前列腺素E2,EP2受体,ICH引起的脑损伤。
图形摘要
Current Drug Targets
Title:The Double Roles of the Prostaglandin E2 EP2 Receptor in Intracerebral Hemorrhage
Volume: 18 Issue: 12
关键词: 脑内出血,前列腺素E2,EP2受体,ICH引起的脑损伤。
摘要: Background: Intracerebral hemorrhage (ICH), a subtype of stroke, brings high morbidity and mortality to human beings. Multiple studies indicated that neuroinflammation, excitotoxicity, oxidative stress, cytotoxicity resulted from the degradation products of blood clot play vital roles in ICH-induced secondary brain injury, which contributes to deterioration of neurological outcome. Prostaglandin E2 (PGE2), a type of prostanoids commonly up-regulated in these progresses, is proved to modulate numerous cellular and molecular processes by activating EP2 receptor after ICH.
Objective: This review aim to discuss the PGE2 biosynthesis, downstream signaling pathway of EP2 receptor and the roles of EP2 receptor in ICH-induced brain damage, targeting to provide a potential effective therapeutic strategy. Methods: A large number of literatures on EP2receptors and intracerebral hemorrhage were searched in PubMed, Medline, and Ebase. Results: Previous studies showed that EP2 receptor mediated double effects in ICH via activation of different signaling pathway. EP2 receptor could induce neuroprotection, spatial learning, and neuroplasticity via cAMP-PKA signaling pathway, while strengthen inflammation mainly through the cAMP-Epac pathway. In addition, the concentration level of cAMP might be the key factor that decides which downstream signaling pathway would be activated. Conclusion: In different phase of cerebral hemorrhage, EP2 receptor plays diverse effects in brain damage through different downstream signaling pathways.Export Options
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Cite this article as:
The Double Roles of the Prostaglandin E2 EP2 Receptor in Intracerebral Hemorrhage, Current Drug Targets 2017; 18 (12) . https://dx.doi.org/10.2174/1389450117666151209122826
DOI https://dx.doi.org/10.2174/1389450117666151209122826 |
Print ISSN 1389-4501 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5592 |
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