Notch信号通路
血管生成
生物
血管生成
细胞生物学
斑马鱼
基因敲除
萌芽血管生成
异位表达
欧米林
四斯潘宁
新生血管
癌症研究
信号转导
血管内皮生长因子
神经肽1
细胞
干细胞
血管内皮生长因子受体
细胞凋亡
遗传学
基因
祖细胞
作者
Grace X. Li,Shaobing Zhang,Ren Liu,B. Singh,Sukhmani Singh,David I. Quinn,J. Gage Crump,Parkash S. Gill
出处
期刊:Biology Open
[The Company of Biologists]
日期:2020-01-01
被引量:8
摘要
The VEGF pathway is critically required for vasculogenesis, the formation of the primary vascular network. It is also required for angiogenesis resulting in sprouting and pruning of vessels to generate mature arborizing structures. The Notch pathway is essential for arterial-venous specification and the maturation of nascent vessels. We have determined that Tspan18, a member of the Tetraspanin family, is expressed in developing vessels but not mature vasculature in zebrafish and mouse wound healing. Moreover, reduction at Tspan18 level resulted in aberrant vascular patterning, impaired vessel stability, and defective arterial-venous specification. Tspan18 deficiency reduced VEGF, VEGFR2, Notch3, EphrinB2, and increased EphB4, VEGFR3, Semaphorin3, Neuropilin, and PlexinD1 expression. Furthermore, vascular defects of Tspan18 deficiency could be rescued by ectopic expression of VEGFR2 and Notch, but not by knockdown of Semaphorin or Plexin. Functional studies showed that knockdown of Tspan18 led to reduced endothelial cell migration, invasion, and tube formation. Tspan18 has dynamic expression, regulates vascular development and maturation in the embryo with re-expression in adult life in wound healing.
科研通智能强力驱动
Strongly Powered by AbleSci AI