The tumour suppressor DLC2 ensures mitotic fidelity by coordinating spindle positioning and cell-cell adhesion.
The tumour suppressor DLC2 ensures mitotic fidelity by coordinating spindle positioning and cell-cell adhesion.
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DOI:
10.1038/ncomms6826
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发表时间:
2014-12-18
影响因子:
16.6
通讯作者:
Matter, Karl
中科院分区:
文献类型:
--
作者:
Vitiello, Elisa;Ferreira, Jorge G.;Maiato, Helder;Balda, Maria S.;Matter, Karl
Dividing epithelial cells need to coordinate spindle positioning with shape changes to maintain cell–cell adhesion. Microtubule interactions with the cell cortex regulate mitotic spindle positioning within the plane of division. How the spindle crosstalks with the actin cytoskeleton to ensure faithful mitosis and spindle positioning is unclear. Here we demonstrate that the tumour suppressor DLC2, a negative regulator of Cdc42, and the interacting kinesin Kif1B coordinate cell junction maintenance and planar spindle positioning by regulating microtubule growth and crosstalk with the actin cytoskeleton. Loss of DLC2 induces the mislocalization of Kif1B, increased Cdc42 activity and cortical recruitment of the Cdc42 effector mDia3, a microtubule stabilizer and promoter of actin dynamics. Accordingly, DLC2 or Kif1B depletion promotes microtubule stabilization, defective spindle positioning, chromosome misalignment and aneuploidy. The tumour suppressor DLC2 and Kif1B are thus central components of a signalling network that guides spindle positioning, cell–cell adhesion and mitotic fidelity. Epithelial cells must position their mitotic spindle correctly to maintain cell–cell adhesion. Here Vitiello et al. show that the tumour suppressor DLC2 and the mitotic kinesin Kif1b coordinate microtubule–actin interactions upstream of mDia3, guiding spindle positioning and mitotic fidelity.
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影响因子:
6.2
作者:
Holeiter, G.;Bischoff, A.;Braun, A. C.;Huck, B.;Erlmann, P.;Schmid, S.;Herr, R.;Brummer, T.;Olayioye, M. A.
通讯作者:
Olayioye, M. A.
影响因子:
7.5
作者:
Bakhoum, Samuel F.;Compton, Duane A.
通讯作者:
Compton, Duane A.
影响因子:
5.2
作者:
Hanna S;Khalil B;Nasrallah A;Saykali BA;Sobh R;Nasser S;El-Sibai M
通讯作者:
El-Sibai M
DOI:
10.1083/jcb.201009141
发表时间:
2011-03-21
期刊:
The Journal of cell biology
影响因子:
--
作者:
Baum B;Georgiou M
通讯作者:
Georgiou M
影响因子:
21.3
作者:
Fink, Jenny;Carpi, Nicolas;Piel, Matthieu
通讯作者:
Piel, Matthieu