The WAVE complex associates with sites of saddle membrane curvature.
The WAVE complex associates with sites of saddle membrane curvature.
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DOI:
10.1083/jcb.202003086
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发表时间:
2021-08-02
期刊:
影响因子:
--
通讯作者:
Weiner OD
中科院分区:
文献类型:
--
作者:
Pipathsouk A;Brunetti RM;Town JP;Graziano BR;Breuer A;Pellett PA;Marchuk K;Tran NT;Krummel MF;Stamou D;Weiner OD
The local rules that control cell shape and movement are not understood. Here, Pipathsouk et al. discover a novel nanoscale organization of a key actin regulator that could explain how cellular protrusions expand and self-straighten and how transcellular holes are repaired. How local interactions of actin regulators yield large-scale organization of cell shape and movement is not well understood. Here we investigate how the WAVE complex organizes sheet-like lamellipodia. Using super-resolution microscopy, we find that the WAVE complex forms actin-independent 230-nm-wide rings that localize to regions of saddle membrane curvature. This pattern of enrichment could explain several emergent cell behaviors, such as expanding and self-straightening lamellipodia and the ability of endothelial cells to recognize and seal transcellular holes. The WAVE complex recruits IRSp53 to sites of saddle curvature but does not depend on IRSp53 for its own localization. Although the WAVE complex stimulates actin nucleation via the Arp2/3 complex, sheet-like protrusions are still observed in ARP2-null, but not WAVE complex-null, cells. Therefore, the WAVE complex has additional roles in cell morphogenesis beyond Arp2/3 complex activation. Our work defines organizing principles of the WAVE complex lamellipodial template and suggests how feedback between cell shape and actin regulators instructs cell morphogenesis.
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影响因子:
64.8
作者:
Chen, Zhucheng;Borek, Dominika;Padrick, Shae B.;Gomez, Timothy S.;Metlagel, Zoltan;Ismail, Ayman M.;Umetani, Junko;Billadeau, Daniel D.;Otwinowski, Zbyszek;Rosen, Michael K.
通讯作者:
Rosen, Michael K.
影响因子:
16.6
作者:
Boujemaa-Paterski R;Suarez C;Klar T;Zhu J;Guérin C;Mogilner A;Théry M;Blanchoin L
通讯作者:
Blanchoin L
DOI:
10.15252/embj.201797039
发表时间:
2018-01-04
期刊:
The EMBO journal
影响因子:
--
作者:
Bieling P;Hansen SD;Akin O;Li TD;Hayden CC;Fletcher DA;Mullins RD
通讯作者:
Mullins RD
影响因子:
5.8
作者:
Arganda-Carreras, Ignacio;Kaynig, Verena;Seung, H. Sebastian
通讯作者:
Seung, H. Sebastian
影响因子:
4.8
作者:
Bu, Wenyu;Chou, Ai Mei;Ahmed, Sohail
通讯作者:
Ahmed, Sohail