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Curr Opin Cell Biol. 2006 Feb;18(1):18-25. Epub 2005 Dec 6.

The making of filopodia.

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1
Institute of Biophysical Chemistry, Hannover Medical School, Carl-Neuberg-Str. 1, D-30623 Hannover, Germany. faix@bpc.mh-hannover.de

Abstract

Filopodia are rod-like cell surface projections filled with bundles of parallel actin filaments. They are found on a variety of cell types and have been ascribed sensory or exploratory functions. Filopodium formation is frequently associated with protrusion of sheet-like actin filament arrays called lamellipodia and membrane ruffles, but, in comparison to these structures, the molecular details underpinning the initiation and maintenance of filopodia are only just beginning to emerge. Recent advances have improved our understanding of the molecular requirements for filopodium protrusion and have yielded insights into the inter-relationships between lamellipodia and filopodia, the two 'sub-compartments' of the protrusive actin cytoskeleton.

PMID:
16337369
DOI:
10.1016/j.ceb.2005.11.002
[Indexed for MEDLINE]
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