Network heterogeneity regulates steering in actin-based motility.
Network heterogeneity regulates steering in actin-based motility.
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DOI:
10.1038/s41467-017-00455-1
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发表时间:
2017-09-21
影响因子:
16.6
通讯作者:
Blanchoin L
中科院分区:
文献类型:
--
作者:
Boujemaa-Paterski R;Suarez C;Klar T;Zhu J;Guérin C;Mogilner A;Théry M;Blanchoin L
The growth of branched actin networks powers cell-edge protrusions and motility. A heterogeneous density of actin, which yields to a tunable cellular response, characterizes these dynamic structures. We study how actin organization controls both the rate and the steering during lamellipodium growth. We use a high-resolution surface structuration assay combined with mathematical modeling to describe the growth of a reconstituted lamellipodium. We demonstrate that local monomer depletion at the site of assembly negatively impacts the network growth rate. At the same time, network architecture tunes the protrusion efficiency, and regulates the rate of growth. One consequence of this interdependence between monomer depletion and network architecture effects is the ability of heterogeneous network to impose steering during motility. Therefore, we have established that the general principle, by which the cell can modulate the rate and the direction of a protrusion, is by varying both density and architecture of its actin network. Protrusive cellular structures contain a heterogeneous density of actin, but whether this influences motility is not known. Using an in vitro system and modelling, here the authors show that local actin monomer depletion and network architecture can tune the rate of network growth to impose steering during motility.
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影响因子:
3.4
作者:
Mogilner, A;Edelstein-Keshet, L
通讯作者:
Edelstein-Keshet, L
影响因子:
64.8
作者:
Loisel, TP;Boujemaa, R;Carlier, MF
通讯作者:
Carlier, MF
影响因子:
64.8
作者:
Dang, Irene;Gorelik, Roman;Gautreau, Alexis
通讯作者:
Gautreau, Alexis
影响因子:
64.8
作者:
Keren, Kinneret;Pincus, Zachary;Theriot, Julie A.
通讯作者:
Theriot, Julie A.
DOI:
10.1083/jcb.146.6.1319
发表时间:
1999-09-20
期刊:
The Journal of cell biology
影响因子:
--
作者:
Egile C;Loisel TP;Laurent V;Li R;Pantaloni D;Sansonetti PJ;Carlier MF
通讯作者:
Carlier MF