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Epoxyeicosanoid Signaling Provides Multi-target Protective Effects on Neurovascular Unit in Rats After Focal Ischemia

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单位: [1]Huazhong Univ Sci & Technol,Tongji Med Coll,Tongji Hosp,Dept Neurol,Wuhan 430030,Peoples R China; [2]Third Peoples Hosp Hubei Prov, Dept Neurol, Wuhan 430030, Peoples R China; [3]Huazhong Univ Sci & Technol,Tongji Med Coll,Tongji Hosp,Dept Infect Dis,Inst Infect Dis,Wuhan 430030,Peoples R China; [4]Hubei Univ Med, Xiangyang Hosp, Dept Neurol, Xiangyang 441000, Peoples R China
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关键词: sEH Epoxyeicosatrienoic acids Ischemia Neuroprotection Neurovascular unit

摘要:
Multiple players are involved in the highly complex pathophysiologic responses after stroke. Therefore, therapeutic approaches that target multiple cellular elements of the neurovascular unit in the damage cascade hold considerable promise for the treatment of stroke. Cytochrome P450 (CYP) epoxygenases metabolize arachidonic acid to biologically active eicosanoids called epoxyeicosatrienoic acids (EETs), which are further converted by soluble epoxide hydrolase (sEH) to less bioactive diols. EETs have been shown to exert direct cytoprotective effects upon several individual components of the neurovascular unit under simulated ischemic conditions in vitro. However, the cellular mechanism underlying EET-mediated neuroprotective effects after ischemia remains to be clarified. In this study, we investigated the effects of 14, 15-EET and 12-(3-adamantan-1-yl-ureido)dodecanoic acid (AUDA), a selective inhibitor of sEH, on multiple elements of neurovascular unit of the rat brain after middle cerebral artery occlusion-induced focal ischemia. The results showed that exogenous administration of 14,15-EET or AUDA could suppress astrogliosis and glial scar formation, inhibit microglia activation and inflammatory response, promote angiogenesis, attenuate neuronal apoptosis and infarct volume, and further promote the behavioral function recovery after focal ischemia. The results suggest that epoxyeicosanoid signaling is a promising multi-mechanism therapeutic target for the treatment of stroke.

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基金编号: 81371312 81571113 81501020 61327902 IRT_14R20 201312 2014CFB445 2015CFB572

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出版当年[2015]版:
大类 | 3 区 医学
小类 | 4 区 生化与分子生物学 4 区 神经科学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 生化与分子生物学 4 区 神经科学
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出版当年[2014]版:
Q3 NEUROSCIENCES Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY
最新[2023]版:
Q2 NEUROSCIENCES Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2014版] 出版当年五年平均 出版前一年[2013版] 出版后一年[2015版]

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第一作者单位: [1]Huazhong Univ Sci & Technol,Tongji Med Coll,Tongji Hosp,Dept Neurol,Wuhan 430030,Peoples R China;
通讯作者:
通讯机构: [1]Huazhong Univ Sci & Technol,Tongji Med Coll,Tongji Hosp,Dept Neurol,Wuhan 430030,Peoples R China;
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