Regulation of Wnt/β-catenin signaling by posttranslational modifications.

Regulation of Wnt/β-catenin signaling by posttranslational modifications.
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DOI:
10.1186/2045-3701-4-13
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发表时间:
2014-03-04
期刊:
影响因子:
7.5
通讯作者:
Hu J
Hu J
中科院分区:
生物学2区
文献类型:
--
作者:
Gao C;Xiao G;Hu J

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经典的 Wnt 信号通路(或 Wnt/β-catenin 通路)在胚胎发育和成人体内平衡中发挥着关键作用; Wnt 通路的失调会导致包括癌症在内的人类疾病的发生和进展。尽管 Wnt/β-catenin 通路在人类生物学和疾病中很重要,但其如何实现调控在很大程度上仍不清楚。越来越多的证据表明,Wnt 通路成分的翻译后修饰 (PTM) 对于 Wnt/β-连环蛋白通路的激活至关重要。 PTM 创建了一个高度动态的中继系统,无需从头合成蛋白质即可响应 Wnt 刺激,并为非 Wnt 通路组件参与 Wnt 信号传导的调节提供平台,从而为靶向 Wnt 通路提供替代机会。本综述重点介绍了 PTM 介导的 Wnt/β-catenin 通路调节的现状,重点关注 Wnt 介导的 β-catenin 稳定作用相关因素。
The canonical Wnt signaling pathway (or Wnt/β-catenin pathway) plays a pivotal role in embryonic development and adult homeostasis; deregulation of the Wnt pathway contributes to the initiation and progression of human diseases including cancer. Despite its importance in human biology and disease, how regulation of the Wnt/β-catenin pathway is achieved remains largely undefined. Increasing evidence suggests that post-translational modifications (PTMs) of Wnt pathway components are essential for the activation of the Wnt/β-catenin pathway. PTMs create a highly dynamic relay system that responds to Wnt stimulation without requiring de novo protein synthesis and offer a platform for non-Wnt pathway components to be involved in the regulation of Wnt signaling, hence providing alternative opportunities for targeting the Wnt pathway. This review highlights the current status of PTM-mediated regulation of the Wnt/β-catenin pathway with a focus on factors involved in Wnt-mediated stabilization of β-catenin.
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