Cyclin B2 and p53 control proper timing of centrosome separation.
Cyclin B2 and p53 control proper timing of centrosome separation.
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DOI：
10.1038/ncb2952
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发表时间：
2014-06
影响因子：
21.3
通讯作者：
中科院分区：
文献类型：
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Cyclins Bl and B2 are frequently elevated in human cancers and are associated with tumour aggressiveness and poor clinical outcome; however, whether and how B-type cyclins drive tumorigenesis is unknown. Here we show that cyclin Bl and B2 transgenic mice are highly prone to tumours, including tumour types where B-type cyclins serve as prognosticators. Cyclins Bl and B2 both induce aneuploidy when overexpressed but through distinct mechanisms, with cyclin Bl inhibiting separase activation, leading to anaphase bridges, and cyclin B2 triggering aurora-A-mediated Plkl hyperactivation, resulting in accelerated centrosome separation and lagging chromosomes. Complementary experiments revealed that cyclin B2 and p53 act antagonistically to control aurora-A-mediated centrosome splitting and accurate chromosome segregation in normal cells. These data demonstrate a causative link between B-type cyclin overexpression and tumour pathophysiology, and uncover previously unknown functions of cyclin B2 and p53 in centrosome separation that may be perturbed in many human cancers.
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影响因子：
21.3
作者：
Bakhoum, Samuel F.;Thompson, Sarah L.;Manning, Amity L.;Compton, Duane A.
通讯作者：
Compton, Duane A.
DOI：
10.1083/jcb.200706015
发表时间：
2007-10-22
期刊：
The Journal of cell biology
影响因子：
--
作者：
Jeganathan K;Malureanu L;Baker DJ;Abraham SC;van Deursen JM
通讯作者：
van Deursen JM
DOI：
10.1083/jcb.200211048
发表时间：
2003-02-03
期刊：
The Journal of cell biology
影响因子：
--
作者：
Babu JR;Jeganathan KB;Baker DJ;Wu X;Kang-Decker N;van Deursen JM
通讯作者：
van Deursen JM
影响因子：
16
作者：
Kawabata T;Luebben SW;Yamaguchi S;Ilves I;Matise I;Buske T;Botchan MR;Shima N
通讯作者：
Shima N
影响因子：
21.3
作者：
通讯作者：
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