Influence of cell geometry on division-plane positioning.
Influence of cell geometry on division-plane positioning.
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DOI:
10.1016/j.cell.2011.01.016
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发表时间:
2011-02-04
期刊:
影响因子:
64.5
通讯作者:
Chang F
中科院分区:
文献类型:
--
作者:
Minc N;Burgess D;Chang F
The spatial organization of cells depends on their ability to sense their own shape and size. Here, we investigate how cell shape affects the positioning of the nucleus, spindle and subsequent cell division plane. To manipulate geometrical parameters in a systematic manner, we place individual sea urchin eggs into micro-fabricated PDMS chambers of defined geometry (e.g. triangles, rectangles and ellipses). In each shape, the nucleus is positioned at the center of mass and is stretched by microtubules along an axis maintained through mitosis and predictive of the future division plane. We develop a simple computational model that posits that microtubules sense cell geometry by probing cellular space and orient the nucleus by exerting pulling forces that scale to microtubule length. This model quantitatively predicts division axis orientation probability for a wide variety of cell shapes, even in multi-cellular contexts, and provides scaling exponents for length dependent microtubule forces.
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DOI:
10.1016/j.cub.2008.12.008
发表时间:
2009-01-27
期刊:
Current biology : CB
影响因子:
--
作者:
Minc N;Bratman SV;Basu R;Chang F
通讯作者:
Chang F
DOI:
10.1083/jcb.138.3.629
发表时间:
1997-08-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Carminati JL;Stearns T
通讯作者:
Stearns T
影响因子:
2
作者:
Howard, J
通讯作者:
Howard, J
影响因子:
56.9
作者:
Grill, SW;Howard, J;Hyman, A
通讯作者:
Hyman, A
影响因子:
2.5
作者:
HAMAGUCHI, MS;HIRAMOTO, Y
通讯作者:
HIRAMOTO, Y