Dynein light intermediate chains maintain spindle bipolarity by functioning in centriole cohesion.
Dynein light intermediate chains maintain spindle bipolarity by functioning in centriole cohesion.
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DOI:
10.1083/jcb.201408025
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发表时间:
2014-11-24
期刊:
影响因子:
--
通讯作者:
Allan VJ
中科院分区:
文献类型:
--
作者:
Jones LA;Villemant C;Starborg T;Salter A;Goddard G;Ruane P;Woodman PG;Papalopulu N;Woolner S;Allan VJ
Cytoplasmic dynein light intermediate chains are required for the maintenance of centriole cohesion and the formation of a bipolar spindle in both human cells and Xenopus embryos. Cytoplasmic dynein 1 (dynein) is a minus end–directed microtubule motor protein with many cellular functions, including during cell division. The role of the light intermediate chains (LICs; DYNC1LI1 and 2) within the complex is poorly understood. In this paper, we have used small interfering RNAs or morpholino oligonucleotides to deplete the LICs in human cell lines and Xenopus laevis early embryos to dissect the LICs’ role in cell division. We show that although dynein lacking LICs drives microtubule gliding at normal rates, the LICs are required for the formation and maintenance of a bipolar spindle. Multipolar spindles with poles that contain single centrioles were formed in cells lacking LICs, indicating that they are needed for maintaining centrosome integrity. The formation of multipolar spindles via centrosome splitting after LIC depletion could be rescued by inhibiting Eg5. This suggests a novel role for the dynein complex, counteracted by Eg5, in the maintenance of centriole cohesion during mitosis.
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影响因子:
2.7
作者:
Danilchik, MV;Funk, WC;Larkin, K
通讯作者:
Larkin, K
影响因子:
9.2
作者:
Cabral, Gabriela;Sans, Sabina Sanegre;Cowan, Carrie R.;Dammermann, Alexander
通讯作者:
Dammermann, Alexander
DOI:
10.1083/jcb.135.2.399
发表时间:
1996-10
期刊:
The Journal of cell biology
影响因子:
--
作者:
Gaglio T;Saredi A;Bingham JB;Hasbani MJ;Gill SR;Schroer TA;Compton DA
通讯作者:
Compton DA
影响因子:
9.2
作者:
Ferenz, Nick P.;Paul, Raja;Wadsworth, Patricia
通讯作者:
Wadsworth, Patricia
影响因子:
8.8
作者:
Florian, Stefan;Mayer, Thomas U.
通讯作者:
Mayer, Thomas U.