Kinetochores and disease: keeping microtubule dynamics in check!

Kinetochores and disease: keeping microtubule dynamics in check!
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DOI:
10.1016/j.ceb.2011.11.012
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发表时间:
2012-02
影响因子:
7.5
通讯作者:
Compton, Duane A.
Compton, Duane A.
中科院分区:
生物学2区
文献类型:
--
作者:
Bakhoum, Samuel F.;Compton, Duane A.

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微管在细胞分裂中的重要作用早已为人所知。然而,微管在着丝点附着到染色体上的调节机制直到最近才被揭示。在这里,我们回顾了动粒-微管(KMT)附着动力学在细胞周期中的作用,以及将KMT附着的解除调控与染色体错误分离和非整倍体发挥核心作用的疾病联系在一起的新证据。证据表明,KMT的动态行为必须落在狭窄的允许边界内,这同时允许足够的稳定性水平,以建立和维持染色体-微管连接和不稳定性,这允许进行准确的染色体分离所需的误差校正。
The essential role of microtubules in cell division has long been known. Yet the mechanism by which microtubule attachment to chromosomes at kinetochores is regulated has only been recently revealed. Here, we review the role of kinetochore-microtubule (kMT) attachment dynamics in the cell cycle as well as emerging evidence linking deregulation of kMT attachments to diseases where chromosome mis-segregation and aneuploidy play a central role. Evidence indicates that the dynamic behavior of kMTs must fall within narrow permissible boundaries, which simultaneously allow a level of stability sufficient to establish and maintain chromosome-microtubule attachments and instability, which permits error correction required for accurate chromosome segregation.
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