State transitions of a confined actomyosin system controlled through contractility and polymerization rate
State transitions of a confined actomyosin system controlled through contractility and polymerization rate
复制标题
通过收缩性和聚合速率控制的受限肌动球蛋白系统的状态转换
DOI:
10.1103/physrevresearch.5.013208
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发表时间:
2023
影响因子:
4.2
通讯作者:
Maeda Yusuke T.
中科院分区:
文献类型:
--
作者:
Sakamoto Ryota;Miyazaki Makito;Maeda Yusuke T.
Pattern formation induced by symmetry breaking is a fundamental concept underlying biological phenomena across different scales, from single cells to tissues. However, the mechanics behind the pattern formation of the actomyosin system remains elusive due to complex biochemical regulations in living cells. In this study, we report the transition between distinct patterns of cytoplasmic actomyosin networks: steady actin flow and periodic actin waves, which are confined to a quasi-two-dimensional cell-like compartment. By combining molecular perturbations and numerical simulations of the active fluid model, we show that contractility and actin polymerization rate are the critical factors for the state transition from the steady actin flow to periodic actin waves. These patterns emerge either when active stress outweighs the diffusive relaxation of actin filaments or when the actin polymerization rate is sufficiently slow to accumulate actin filaments close to the surface of the circular confinement. Furthermore, our active fluid model predicts that the spatial heterogeneity at the onset of contraction leads to a rotational actin wave, which is stable only at the phase boundary between the steady actin flow and periodic actin waves. This study provides an integrative understanding of the distinct pattern formation of active gels confined in cell-sized spaces.
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影响因子:
3.4
作者:
T. Le Goff;B. Liebchen;D. Marenduzzo
通讯作者:
D. Marenduzzo
影响因子:
3.3
作者:
Mirco Bonati;L. D. Wittwer;S. Aland;Elisabeth Fischer
通讯作者:
Elisabeth Fischer
DOI:
10.1073/pnas.96.9.4971
发表时间:
1999-04-27
影响因子:
11.1
作者:
Raskin, DM;de Boer, PAJ
通讯作者:
de Boer, PAJ
DOI:
10.1083/jcb.201007136
发表时间:
2010-11-01
期刊:
The Journal of cell biology
影响因子:
--
作者:
Mitsushima M;Aoki K;Ebisuya M;Matsumura S;Yamamoto T;Matsuda M;Toyoshima F;Nishida E
通讯作者:
Nishida E
影响因子:
13.6
作者:
Tan TH;Malik-Garbi M;Abu-Shah E;Li J;Sharma A;MacKintosh FC;Keren K;Schmidt CF;Fakhri N
通讯作者:
Fakhri N