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Review
Nature Reviews Molecular Cell Biology 9, 860–873 (1 November 2008) | doi:10.1038/nrm2522
Beyond polymer polarity: how the cytoskeleton builds a polarized cell
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Abstract
Cell polarity relies on the asymmetric organization of cellular components and structures. Actin and microtubules are well suited to provide the structural basis for cell polarization because of their inherent structural polarity along the polymer lattices and intrinsic dynamics that allow them to respond rapidly to polarity cues. In general, the actin cytoskeleton drives the symmetry-breaking process that enables the establishment of a polarized distribution of regulatory molecules, whereas microtubules build on this asymmetry and maintain the stability of the polarized organization. Crosstalk coordinates the functions of the two cytoskeletal systems.
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