Centriole and PCM cooperatively recruit CEP192 to spindle poles to promote bipolar spindle assembly.
Centriole and PCM cooperatively recruit CEP192 to spindle poles to promote bipolar spindle assembly.
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DOI:
10.1083/jcb.202006085
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发表时间:
2021-02-01
期刊:
影响因子:
--
通讯作者:
Kitagawa D
中科院分区:
文献类型:
--
作者:
Chinen T;Yamazaki K;Hashimoto K;Fujii K;Watanabe K;Takeda Y;Yamamoto S;Nozaki Y;Tsuchiya Y;Takao D;Kitagawa D
By systematic depletion of PCM proteins and centrioles in human cell lines, we reveal the cooperative role of the centriole and PCM scaffold proteins, pericentrin and CDK5RAP2, in the recruitment of CEP192 to spindle poles to promote bipolar spindle formation. The pericentriolar material (PCM) that accumulates around the centriole expands during mitosis and nucleates microtubules. Here, we show the cooperative roles of the centriole and PCM scaffold proteins, pericentrin and CDK5RAP2, in the recruitment of CEP192 to spindle poles during mitosis. Systematic depletion of PCM proteins revealed that CEP192, but not pericentrin and/or CDK5RAP2, was crucial for bipolar spindle assembly in HeLa, RPE1, and A549 cells with centrioles. Upon double depletion of pericentrin and CDK5RAP2, CEP192 that remained at centriole walls was sufficient for bipolar spindle formation. In contrast, through centriole removal, we found that pericentrin and CDK5RAP2 recruited CEP192 at the acentriolar spindle pole and facilitated bipolar spindle formation in mitotic cells with one centrosome. Furthermore, the perturbation of PLK1, a critical kinase for PCM assembly, efficiently suppressed bipolar spindle formation in mitotic cells with one centrosome. Overall, these data suggest that the centriole and PCM scaffold proteins cooperatively recruit CEP192 to spindle poles and facilitate bipolar spindle formation.
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影响因子:
9.2
作者:
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通讯作者:
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影响因子:
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DOI:
10.1083/jcb.201106093
发表时间:
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期刊:
The Journal of cell biology
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影响因子:
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Rhee, Kunsoo