Square Cell Packing in the Drosophila Embryo through Spatiotemporally Regulated EGF Receptor Signaling.

Square Cell Packing in the Drosophila Embryo through Spatiotemporally Regulated EGF Receptor Signaling.
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通过时空调节 EGF 受体信号传导在果蝇胚胎中形成方形细胞。

DOI:
10.1016/j.devcel.2015.09.015
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发表时间:
2015
期刊:
影响因子:
11.8
通讯作者:
Zallen,JenniferA
Zallen,JenniferA
中科院分区:
生物学1区
文献类型:
--
作者:
Tamada,Masako;Zallen,JenniferA

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细胞在发育过程中表现出动态和多样的形态,但分化组织实现精确形状和模式的策略还不清楚。在这里,我们确定了一个发展计划,产生一个高度有序的方形细胞网格在theDrosophilaembryo通过顺序和空间调控的细胞排列,定向细胞分裂,apicobasal细胞伸长。碱性亮氨酸拉链转录调节因子Cnc是必要的,足以在EGF受体配体Spitz提供的中线信号的存在下产生方形细胞网格。Spitz通过Pins/LGN依赖的纺锤体定位机制定向细胞分裂,并通过需要Pointed ETS结构域蛋白的转录途径控制细胞形状和排列。这些结果确定了一种策略,在上皮细胞中产生有序的方形细胞包装配置,并揭示了一种分子机制,通过该机制,通过时空调节EGF受体激活的反应产生有组织的组织结构。
Cells display dynamic and diverse morphologies during development, but the strategies by which differentiated tissues achieve precise shapes and patterns are not well understood. Here we identify a developmental program that generates a highly ordered square cell grid in theDrosophilaembryo through sequential and spatially regulated cell alignment, oriented cell division, and apicobasal cell elongation. The basic leucine zipper transcriptional regulator Cnc is necessary and sufficient to produce a square cell grid in the presence of a midline signal provided by the EGF receptor ligand Spitz. Spitz orients cell divisions through a Pins/LGN-dependent spindle-positioning mechanism and controls cell shape and alignment through a transcriptional pathway that requires the Pointed ETS domain protein. These results identify a strategy for producing ordered square cell packing configurations in epithelia and reveal a molecular mechanism by which organized tissue structure is generated through spatiotemporally regulated responses to EGF receptor activation.
果蝇会聚延伸过程中的细胞模式紊乱
DOI: --
发表时间: 2004
期刊: Journal of Physics: Condensed Matter
影响因子: --
作者:
J. Zallen;R. Zallen
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