Document Detail


Cell polarity: mechanochemical patterning.
MedLine Citation:
PMID:  23182746     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Nearly every cell type exhibits some form of polarity, yet the molecular mechanisms vary widely. Here we examine what we term 'chemical systems' where cell polarization arises through biochemical interactions in signaling pathways, 'mechanical systems' where cells polarize due to forces, stresses and transport, and 'mechanochemical systems' where polarization results from interplay between mechanics and chemical signaling. To reveal potentially unifying principles, we discuss mathematical conceptualizations of several prototypical examples. We suggest that the concept of local activation and global inhibition - originally developed to explain spatial patterning in reaction-diffusion systems - provides a framework for understanding many cases of cell polarity. Importantly, we find that the core ingredients in this framework - symmetry breaking, self-amplifying feedback, and long-range inhibition - involve processes that can be chemical, mechanical, or even mechanochemical in nature.
Authors:
Nathan W Goehring; Stephan W Grill
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-22
Journal Detail:
Title:  Trends in cell biology     Volume:  -     ISSN:  1879-3088     ISO Abbreviation:  Trends Cell Biol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9200566     Medline TA:  Trends Cell Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Affiliation:
Max Planck Institute of Molecular Cell Biology and Genetics (MPI-CBG), Pfotenhauerstraße 108, 01307 Dresden, Germany; Max Planck Institute for the Physics of Complex Systems (MPI-PKS), Nöthnitzer Straße 38, 01187 Dresden, Germany; Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, 44 Lincoln's Inn Fields, London WC2A 3LY, UK. Electronic address: nate.goehring@cancer.org.uk.
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