Actin cortex architecture regulates cell surface tension.
Actin cortex architecture regulates cell surface tension.
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DOI:
10.1038/ncb3525
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发表时间:
2017-06
影响因子:
21.3
通讯作者:
Paluch EK
中科院分区:
文献类型:
--
作者:
Chugh P;Clark AG;Smith MB;Cassani DAD;Dierkes K;Ragab A;Roux PP;Charras G;Salbreux G;Paluch EK
Animal cell shape is largely determined by the cortex, a thin actin network underlying the plasma membrane in which myosin-driven stresses generate contractile tension. Tension gradients result in local contractions and drive cell deformations. Previous cortical tension regulation studies have focused on myosin motors. Here, we show that cortical actin network architecture is equally important. First, we observe that actin cortex thickness and tension are inversely correlated during cell cycle progression. We then show that the actin filament length regulators CFL1, CAPZB, DIAPH1 regulate mitotic cortex thickness and find that both increasing and decreasing thickness decreases tension in mitosis. This suggests that the mitotic cortex is poised close to a tension maximum. Finally, using a computational model, we identify a physical mechanism by which maximum tension is achieved at intermediate actin filament lengths. Our results indicate that actin network architecture, alongside myosin activity, is key to cell surface tension regulation.
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DOI:
10.1038/nrm2867
发表时间:
2010-04
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
11.4
作者:
Hanakam, F;Albrecht, R;Gerisch, G
通讯作者:
Gerisch, G
影响因子:
8.6
作者:
Dasanayake NL;Michalski PJ;Carlsson AE
通讯作者:
Carlsson AE
影响因子:
64.8
作者:
FINER, JT;SIMMONS, RM;SPUDICH, JA
通讯作者:
SPUDICH, JA
影响因子:
2.9
作者:
Biro,Mate;Romeo,Yves;Paluch,Ewa K.
通讯作者:
Paluch,Ewa K.