Microtubules meet substrate adhesions to arrange cell polarity.

Small JV, Kaverina I
Curr Opin Cell Biol. 2003 15 (1): 40-7

PMID: 12517702

Cell movement is driven by the regulated and polarised turnover of the actin cytoskeleton and of the adhesion complexes that link it to the extracellular matrix. For most cells, polarisation requires the engagement of microtubules, which exert their effect by mediating changes in the activity of the Rho GTPases. Evidence suggests that these changes are effected in a very localised fashion at sites of substrate adhesion, via specific microtubule-targeting interactions. Targeting serves to bring molecular complexes bound at the tips and along microtubules in close proximity with adhesion complexes, to promote adhesion disassembly and remodelling of the actin cytoskeleton.

MeSH Terms (11)

Actin Cytoskeleton Animals Cell Adhesion Cell Movement Cell Polarity Eukaryotic Cells Humans Macromolecular Substances Microtubules Polymers rho GTP-Binding Proteins

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