Endothelial function is impaired in conduit arteries of pannexin1 knockout mice.

Endothelial function is impaired in conduit arteries of pannexin1 knockout mice.
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DOI:
10.1186/1745-6150-9-8
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发表时间:
2014-05-17
期刊:
影响因子:
5.5
通讯作者:
Panchin Y
Panchin Y
中科院分区:
生物学2区
文献类型:
--
作者:
Gaynullina D;Tarasova OS;Kiryukhina OO;Shestopalov VI;Panchin Y

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Pannexin1 在脊椎动物组织中普遍表达,但其在血管张力调节中的作用仍不清楚。我们发现 Pannexin1 在内皮细胞中的表达水平远高于隐动脉平滑肌。在 Pannexin1 基因消融的小鼠中,完整内皮动脉的扩张能力显着受损,而收缩反应则显着增强。在内皮剥脱的动脉中没有检测到这种增加的收缩反应。综合起来,我们的研究结果表明 Pannexin1 的新功能是正常内皮依赖性动脉张力调节的重要参与者,它促进血管扩张并减弱收缩。由 Armen Mulkidjanian 博士和 Alexander Lobkovsky 博士审阅。
Pannexin1 is ubiquitously expressed in vertebrate tissues, but the role it plays in vascular tone regulation remains unclear. We found that Pannexin1 expression level is much higher in the endothelium relative to smooth muscle of saphenous artery. The ability of endothelium-intact arteries for dilation was significantly impaired whereas contractile responses were considerably increased in mice with genetic ablation of Pannexin1. No such increased contractile responses were detected in the endothelium-denuded arteries. Combined, our findings suggest a new function of Pannexin1 as an important player in normal endothelium-dependent regulation of arterial tone, where it facilitates vessel dilation and attenuates constriction. Reviewed by Dr. Armen Mulkidjanian and Dr. Alexander Lobkovsky.
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发表时间: 2012
影响因子: 1.7
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Lohman AW;Billaud M;Straub AC;Johnstone SR;Best AK;Lee M;Barr K;Penuela S;Laird DW;Isakson BE
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