首页> 外文期刊>Endothelium: Journal of endothelial cell research >Ultrastructural localisation of ATP-gated P2X2 receptor immunoreactivity in vascular endothelial cells in rat brain.
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Ultrastructural localisation of ATP-gated P2X2 receptor immunoreactivity in vascular endothelial cells in rat brain.

机译:大鼠脑血管内皮细胞中ATP门控的P2X2受体免疫反应性的超微结构定位。

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摘要

In this report, we show for the first time that P2X2 receptors--ATP-gated cation channels--can be demonstrated in endothelial cells of small cerebral vessels of rat. Immunoreactivity to P2X2 receptors was visualised at the ultrastructural level with electron-immunocytochemistry (ExtrAvidin-horseradish peroxidase technique) using a polyclonal antibody against the fragment of an intracellular domain of the receptor. The possibilities that these receptors may regulate the formation of gap and/or tight junctions between adjacent endothelial cells influencing the blood-brain barrier, or modulate the contractility of capillary endothelial cells are discussed.
机译:在本报告中,我们首次证明可以在大鼠小脑血管的内皮细胞中证实P2X2受体-ATP门控的阳离子通道。使用针对受体胞内结构域片段的多克隆抗体,通过电子免疫细胞化学(ExtrAvidin-辣根过氧化物酶技术)在超微结构水平上可视化了对P2X2受体的免疫反应性。讨论了这些受体可能调节影响血脑屏障的相邻内皮细胞之间的间隙和/或紧密连接的形成或调节毛细血管内皮细胞的收缩性的可能性。

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