Damped propagation of cell polarization explains distinct PCP phenotypes of epithelial patterning.

Damped propagation of cell polarization explains distinct PCP phenotypes of epithelial patterning.
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细胞极化的抑制传播解释了上皮图案的独特 PCP 表型。

DOI:
10.1038/srep02528
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发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Owen, Markus R.
Owen, Markus R.
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Zhu, Hao;Owen, Markus R.

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在后生动物的上皮图案化过程中,细胞在组织平面内极化,这一过程称为平面细胞极性(PCP)。一些分子之间的相互作用在从果蝇到人类的动物不同组织中产生不同的表型,并使五氯苯酚与组织和器官的生长控制密切相关。一个有趣的问题是这些表型是否具有共同的特征。先前的计算模型揭示了 PCP 信号传导如何在某些特定情况下决定细胞极化。我们开发了一个计算模型,检查了不同分子背景下的 PCP 信号传导,并揭示了分子相互作用的细节和分子背景的差异如何影响细胞极化的方向、速度和传播。主要发现是,细胞极化的阻尼传播可以在不同环境下的霸道非自主性和纠错表型中产生丰富的差异。这些结果令人印象深刻地证明了简单的分子相互作用如何导致不同但本质上相似的发育模式。
During epithelial patterning in metazoans cells are polarized in the plane of a tissue, a process referred to as planar cell polarity (PCP). Interactions between a few molecules produce distinct phenotypes in diverse tissues in animals from flies to humans and make PCP tightly associated with tissue and organ growth control. An interesting question is whether these phenotypes share common traits. Previous computational models revealed how PCP signalling determines cell polarization in some specific contexts. We have developed a computational model, examined PCP signalling in varied molecular contexts, and revealed how details of molecular interactions and differences in molecular contexts affect the direction, speed, and propagation of cell polarization. The main finding is that damped propagation of cell polarization can generate rich variances in phenotypes of domineering non-autonomy and error correction in different contexts. These results impressively demonstrate how simple molecular interactions cause distinct, yet inherently analogous, developmental patterning.
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