Membrane and actin dynamics interplay at lamellipodia leading edge.

Abstract:

:The multimolecular WAVE regulatory (WRC) and Arp2/3 complexes are primarily responsible to generate pushing forces at migratory leading edges by promoting branch elongation of actin filaments. The architectural complexity of these units betrays the necessity to impose a tight control on their activity. This is exerted through temporally coordinated and coincident signals which limit the intensity and duration of this activity. In addition, interactions of the WRC and Arp2/3 complexes with membrane binding and surprisingly membrane trafficking proteins is also emerging, revealing the existence of an 'endocytic wiring system' that spatially restrict branched actin elongation for the execution of polarized functions during cell migration.

journal_name

Curr Opin Cell Biol

authors

Bisi S,Disanza A,Malinverno C,Frittoli E,Palamidessi A,Scita G

doi

10.1016/j.ceb.2013.04.001

subject

Has Abstract

pub_date

2013-10-01 00:00:00

pages

565-73

issue

5

eissn

0955-0674

issn

1879-0410

pii

S0955-0674(13)00064-1

journal_volume

25

pub_type

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