Reck and Gpr124 Are Essential Receptor Cofactors for Wnt7a/Wnt7b-Specific Signaling in Mammalian CNS Angiogenesis and Blood-Brain Barrier Regulation.

Reck and Gpr124 Are Essential Receptor Cofactors for Wnt7a/Wnt7b-Specific Signaling in Mammalian CNS Angiogenesis and Blood-Brain Barrier Regulation.
复制标题

DOI:
10.1016/j.neuron.2017.07.031
复制
发表时间:
2017-08-30
期刊:
影响因子:
16.2
通讯作者:
Nathans J
Nathans J
中科院分区:
医学1区
文献类型:
--
作者:
Cho C;Smallwood PM;Nathans J

文献摘要

参考文献

被引文献

相似文献

RECK是一种GPI锚定的膜蛋白,GPR124是一种孤立的GPCR,它们参与了中枢神经系统血管系统中Wnt7a/Wnt7b的信号转导。我们在这里表明血管内皮细胞(EC)特异性的RECK减少会损害CNS血管生成,而EC特异性的出生后RECK的丢失和去甲肾上腺素的丢失会损害血脑屏障(BBB)的维持。RECK的最大N末端结构域与GPR124的富亮氨酸重复序列(LRR)和免疫球蛋白(Ig)结构域结合,通过靶向突变来减弱这种相互作用,减少细胞培养中RECK/GPR124对Wnt7a信号的刺激,并损害中枢神经系统血管生成。最后,可溶性GPR124(LRR-Ig)探针与表达FrizzledWnt7a或Wnt7b和RECK的细胞结合;可溶性RECK(CC1-5)探针与表达FrizzledWnt7a或Wnt7b和GPR124的细胞结合。这些实验表明,RECK和GPR124是细胞表面蛋白复合体的一部分,该复合体在哺乳动物中枢神经系统内皮细胞中传递Wnt7a和Wnt7b特异性信号,以促进血管生成和调节血脑屏障。
Reck, a GPI-anchored membrane protein, and Gpr124, an orphan GPCR, have been implicated in Wnt7a/Wnt7b signaling in the CNS vasculature. We show here that vascular endothelial cell (EC)-specific reduction in Reck impairs CNS angiogenesis and that EC-specific postnatal loss of Reck combined with loss of Norrin impairs blood-brain barrier (BBB) maintenance. The most N-terminal domain of Reck binds to the leucine-rich repeat (LRR) and immunoglobulin (Ig) domains of Gpr124, and weakening this interaction by targeted mutagenesis reduces Reck/Gpr124 stimulation of Wnt7a signaling in cell culture and impairs CNS angiogenesis. Finally, a soluble Gpr124(LRR-Ig) probe binds to cells expressing Frizzled, Wnt7a or Wnt7b, and Reck; and a soluble Reck(CC1–5) probe binds to cells expressing Frizzled, Wnt7a or Wnt7b, and Gpr124. These experiments indicate that Reck and Gpr124 are part of the cell-surface protein complex that transduces Wnt7a- and Wnt7b-specific signals in mammalian CNS ECs to promote angiogenesis and regulate the BBB.
DOI: 10.1073/pnas.1019761108
发表时间: 2011-02-15
影响因子: 11.1
作者:
Anderson, Keith D.;Pan, Li;Gale, Nicholas W.
通讯作者: Gale, Nicholas W.
DOI: 10.1073/pnas.96.7.3546
发表时间: 1999-03-30
影响因子: 11.1
作者:
Hsieh, JC;Rattner, A;Nathans, J
通讯作者: Nathans, J
DOI: 10.1016/j.cell.2009.07.048
发表时间: 2009-10-16
期刊: CELL
影响因子: 64.5
作者:
Junge, Harald J.;Yang, Stacey;Ye, Weilan
通讯作者: Ye, Weilan
DOI: 10.1101/cshperspect.a020412
发表时间: 2015-01-01
影响因子: 7.2
作者:
Daneman, Richard;Prat, Alexandre
通讯作者: Prat, Alexandre
Wnt/β-catenin信号传导控制血脑屏障的发展。
DOI: 10.1083/jcb.200806024
发表时间: 2008-11-03
影响因子: 7.8
作者:
Liebner, Stefan;Corada, Monica;Bangsow, Thorsten;Babbage, Jane;Taddei, Andrea;Czupalla, Cathrin J.;Reis, Marco;Felici, Angelina;Wolburg, Hartwig;Fruttiger, Marcus;Taketo, Makoto M.;von Melchner, Harald;Plate, Karl Heinz;Gerhardt, Holger;Dejana, Elisabetta
通讯作者: Dejana, Elisabetta