Prepatterning by RhoGEFs governs Rho GTPase spatiotemporal dynamics during wound repair.

Prepatterning by RhoGEFs governs Rho GTPase spatiotemporal dynamics during wound repair.
复制标题

DOI:
10.1083/jcb.201704145
复制
发表时间:
2017-12-04
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Parkhurst SM
Parkhurst SM
中科院分区:
其他
文献类型:
--
作者:
Nakamura M;Verboon JM;Parkhurst SM

文献摘要

参考文献

被引文献

相似文献

在伤口修复过程中,Rho GTP 酶在伤口周围形成动态的空间和时间模式,并协调细胞骨架反应。中村等人。表明 Rho GTPase 阵列是响应 RhoGEF 的预图案化而形成的,这取决于膜联蛋白 B9。与组织一样,单细胞也会受到持续的压力和损伤。因此,细胞具有强大的伤口修复机制,包括动态膜重新密封和皮质细胞骨架重塑。一组蛋白质,即小鸟苷三磷酸酶 (GTPase) 的 Rho 家族,对于肌动蛋白和肌球蛋白细胞骨架反应至关重要,在这种反应中,它们在伤口周围形成独特的动态空间和时间模式/阵列。那么,一个关键的机制问题是这些 GTPase 阵列是如何形成的。在这里,我们发现,在果蝇细胞伤口修复模型中,Rho GTPase 阵列响应 Rho 鸟嘌呤核苷酸交换因子 (RhoGEF) 的预图案化而形成,RhoGEF 是参与小 GTPase 激活的蛋白质家族。此外,我们发现膜联蛋白 B9 是一类与膜重新密封相关的蛋白质的成员,它参与早期、独立于 Rho 家族的肌动蛋白稳定,而该稳定对于 RhoGEF 阵列的形成是不可或缺的。因此,膜联蛋白可能将单细胞伤口修复中的膜重新密封与细胞骨架重塑过程联系起来。
During wound repair, Rho GTPases form dynamic spatial and temporal patterns surrounding the wound and coordinate the cytoskeletal response. Nakamura et al. show that Rho GTPase arrays form in response to prepatterning by RhoGEFs, which depends on annexin B9. Like tissues, single cells are subjected to continual stresses and damage. As such, cells have a robust wound repair mechanism comprised of dynamic membrane resealing and cortical cytoskeletal remodeling. One group of proteins, the Rho family of small guanosine triphosphatases (GTPases), is critical for this actin and myosin cytoskeletal response in which they form distinct dynamic spatial and temporal patterns/arrays surrounding the wound. A key mechanistic question, then, is how these GTPase arrays are formed. Here, we show that in the Drosophila melanogaster cell wound repair model Rho GTPase arrays form in response to prepatterning by Rho guanine nucleotide exchange factors (RhoGEFs), a family of proteins involved in the activation of small GTPases. Furthermore, we show that Annexin B9, a member of a class of proteins associated with the membrane resealing, is involved in an early, Rho family–independent, actin stabilization that is integral to the formation of one RhoGEF array. Thus, Annexin proteins may link membrane resealing to cytoskeletal remodeling processes in single cell wound repair.
DOI: 10.1083/jcb.137.1.1
发表时间: 1997-04-07
影响因子: 7.8
作者:
McNeil, PL;Steinhardt, RA
通讯作者: Steinhardt, RA
DOI: 10.1016/j.placenta.2015.01.193
发表时间: 2015-04-01
期刊: PLACENTA
影响因子: 3.8
作者:
Bouter, A.;Carmeille, R.;Brisson, A. R.
通讯作者: Brisson, A. R.
DOI: 10.1016/j.cub.2013.11.048
发表时间: 2014-01-20
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Abreu-Blanco, Maria Teresa;Verboon, Jeffrey M.;Parkhurst, Susan M.
通讯作者: Parkhurst, Susan M.
DOI: 10.12688/f1000research.7370.1
发表时间: 2016-01-01
期刊: F1000Research
影响因子: --
作者:
Fritz, Rafael Dominik;Pertz, Olivier
通讯作者: Pertz, Olivier
DOI: 10.1083/jcb.149.2.471
发表时间: 2000-04-17
期刊: The Journal of cell biology
影响因子: --
作者:
Kiehart DP;Galbraith CG;Edwards KA;Rickoll WL;Montague RA
通讯作者: Montague RA