EphrinB2 controls vessel pruning through STAT1-JNK3 signalling.
EphrinB2 controls vessel pruning through STAT1-JNK3 signalling.
复制标题
DOI:
10.1038/ncomms7576
复制
发表时间:
2015-03-26
影响因子:
16.6
通讯作者:
Tosato, Giovanna
中科院分区:
文献类型:
--
作者:
Salvucci, Ombretta;Ohnuki, Hidetaka;Maric, Dragan;Hou, Xu;Li, Xuri;Yoon, Sung Ok;Segarra, Marta;Eberhart, Charles G.;Acker-Palmer, Amparo;Tosato, Giovanna
Angiogenesis produces primitive vascular networks that need pruning to yield hierarchically organized and functional vessels. Despite the critical importance of vessel pruning to vessel patterning and function, the mechanisms regulating this process are not clear. Here we show that EphrinB2, a well-known player in angiogenesis, is an essential regulator of endothelial cell death and vessel pruning. This regulation depends upon phosphotyrosine-EphrinB2 signaling repressing JNK3 activity via STAT1. JNK3 activation causes endothelial cell death. In the absence of JNK3, hyaloid vessel physiological pruning is impaired, associated with abnormal persistence of hyaloid vessels, defective retinal vasculature and microphthalmia. This syndrome closely resembles human persistent hyperplastic primary vitreus (PHPV), attributed to failed involution of hyaloid vessels. Our results provide evidence that EphrinB2/STAT1/JNK3 signaling is essential for vessel pruning, and that defects in this pathway may contribute to PHPV.
登录
查看更多内容
影响因子:
7.3
作者:
Daar, Ira O.
通讯作者:
Daar, Ira O.
影响因子:
16
作者:
Gerety, SS;Wang, HU;Anderson, DJ
通讯作者:
Anderson, DJ
影响因子:
11.8
作者:
Castets, Marie;Coissieux, Marie-May;Mehlen, Patrick
通讯作者:
Mehlen, Patrick
DOI:
10.1073/pnas.0702337104
发表时间:
2007-10-30
影响因子:
11.1
作者:
Bong, Yong-Sik;Lee, Hyun-Shik;Daar, Ira O.
通讯作者:
Daar, Ira O.
影响因子:
9.8
作者:
Duval, Helene;Harris, Mike;Print, Cristin
通讯作者:
Print, Cristin