Arteriolar and venular patterning in retinas of mice selectively expressing VEGF isoforms.

Arteriolar and venular patterning in retinas of mice selectively expressing VEGF isoforms.
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选择性表达 VEGF 同工型的小鼠视网膜中的小动脉和小静脉模式。

DOI:
10.1172/jci14362
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发表时间:
2002
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
--
中科院分区:
--
文献类型:
--
作者:
Stalmans,Ingeborg;Ng,Yin-Shan;Rohan,Richard;Fruttiger,Marcus;Bouche,Ann;Yuce,Ali;Fujisawa,Hajime;Hermans,Bart;Shani,Moshe;Jansen,Sandra;Hicklin,Dan;Anderson,DavidJ;Gardiner,Tom;Hammes,Hans-Peter;Moons,Lieve;Dewerchin,Mieke;

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The murineVEGFgene is alternatively transcribed to yield the VEGF120, VEGF164, and VEGF188isoforms, which differ in their potential to bind to heparan sulfate and neuropilin-1 and to stimulate endothelial growth. Here, their role in retinal vascular development was studied in mice selectively expressing single isoforms.VEGF164/164mice were normal, healthy, and had normal retinal angiogenesis. In contrast,VEGF120/120mice exhibited severe defects in vascular outgrowth and patterning, whereasVEGF188/188mice displayed normal venular outgrowth but impaired arterial development. It is noteworthy that neuropilin-1, a receptor for VEGF164, was predominantly expressed in retinal arterioles. These findings reveal distinct roles of the various VEGF isoforms in vascular patterning and arterial development in the retina.
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