Robust control of mitotic spindle orientation in the developing epidermis.

Robust control of mitotic spindle orientation in the developing epidermis.
复制标题

DOI:
10.1083/jcb.201008001
复制
发表时间:
2010-11-29
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Lechler T
Lechler T
中科院分区:
其他
文献类型:
--
作者:
Poulson ND;Lechler T

文献摘要

参考文献

被引文献

相似文献

正确的表皮形态发生所需的纺锤体方向的精确平衡由 mInscuteable 表达和 NuMA 定位调节。祖细胞必须在发育和稳态过程中平衡自我扩增和分化后代的产生。在表皮中,祖细胞对称分裂以增加表面积,不对称分裂以促进分层。在这项研究中,我们表明单个表皮细胞可以经历两种类型的分裂,因此,平衡是由单个细胞选择的总和提供的。此外,我们定义了两个控制点来确定细胞的分裂模式。首先是小鼠 Inscuteable 基因的表达,该基因足以驱动不对称细胞分裂 (ACD)。然而,由于通过改变纺锤体方向效应器 NuMA 的定位来防止过多的 ACD,因此对分裂方向有强有力的控制。最后,我们证明 p63(分层的转录调节因子)并不控制这两个过程。这些数据揭示了控制表皮中 ACD 的两个重要调节点,并为分析外部线索如何控制这一重要选择提供了一个框架。
The precise balance of spindle orientations required for proper epidermal morphogenesis is regulated by mInscuteable expression and NuMA localization. Progenitor cells must balance self-amplification and production of differentiated progeny during development and homeostasis. In the epidermis, progenitors divide symmetrically to increase surface area and asymmetrically to promote stratification. In this study, we show that individual epidermal cells can undergo both types of division, and therefore, the balance is provided by the sum of individual cells’ choices. In addition, we define two control points for determining a cell’s mode of division. First is the expression of the mouse Inscuteable gene, which is sufficient to drive asymmetric cell division (ACD). However, there is robust control of division orientation as excessive ACDs are prevented by a change in the localization of NuMA, an effector of spindle orientation. Finally, we show that p63, a transcriptional regulator of stratification, does not control either of these processes. These data have uncovered two important regulatory points controlling ACD in the epidermis and allow a framework for analysis of how external cues control this important choice.
DOI: 10.1038/19531
发表时间: 1999-04-22
期刊: NATURE
影响因子: 64.8
作者:
Mills, AA;Zheng, BH;Bradley, A
通讯作者: Bradley, A
DOI: 10.1038/ncb1412
发表时间: 2006-06-01
影响因子: 21.3
作者:
Siller, Karsten H.;Cabernard, Clemens;Doe, Chris Q.
通讯作者: Doe, Chris Q.
DOI: 10.1016/j.devcel.2006.05.005
发表时间: 2006-06-01
期刊: DEVELOPMENTAL CELL
影响因子: 11.8
作者:
Bowman, Sarah K.;Neumueller, Ralph A.;Knoblich, Juergen A.
通讯作者: Knoblich, Juergen A.
DOI: 10.1111/j.1365-2133.1970.tb12437.x
发表时间: 1970-01-01
影响因子: 10.3
作者:
SMART, IHM
通讯作者: SMART, IHM
DOI: 10.1038/nature03922
发表时间: 2005-09-08
期刊: NATURE
影响因子: 64.8
作者:
Lechler, T;Fuchs, E
通讯作者: Fuchs, E