Distinct functions for Rap1 signaling in vascular morphogenesis and dysfunction.

Distinct functions for Rap1 signaling in vascular morphogenesis and dysfunction.
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DOI:
10.1016/j.yexcr.2013.07.022
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发表时间:
2013-09-10
影响因子:
3.7
通讯作者:
Chrzanowska-Wodnicka, Magdalena
Chrzanowska-Wodnicka, Magdalena
中科院分区:
医学3区
文献类型:
--
作者:
Chrzanowska-Wodnicka, Magdalena

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Rap1信号对于血管形成的两个主要过程都很重要:血管发生,或新生血管形成,和血管生成,从新血管中萌发。我们概述了小鼠和斑马鱼的遗传研究,并讨论了一些来自细胞模型的潜在机制,特别强调Rap1在血管生成,内皮屏障维持和脑海绵状畸形(CCM)中的作用,CCM是一种导致癫痫发作和致命中风的神经功能缺陷。最后,我们简要总结了心脏和平滑肌细胞的研究,其中Epac-Rap1信号轴正在成为收缩性的重要调节因子。
Rap1 signaling is important for both major processes of vessel formation: vasculogenesis, or de novo vessel formation, and angiogenesis, sprouting of new vessels from pre-existing ones. We provide an overview of genetic studies in mice and zebrafish and discuss some of the proposed underlying mechanisms derived from cellular models, with particular emphasis on Rap1's role in angiogenesis, maintenance of endothelial barrier and connection with cerebral cavernous malformation (CCM), a neurological deficit that leads to seizures and lethal stroke. Lastly, we provide a brief summary of studies in cardiac and smooth muscle cells, where the Epac-Rap1 signaling axis is emerging as an important regulator of contractility.
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