Document Detail

Fine control of nuclear confinement identifies a threshold deformation leading to lamina rupture and induction of specific genes.
MedLine Citation:
PMID:  23038068     Owner:  NLM     Status:  Publisher    
The quest to understand how the mechanical and geometrical environment of cells impacts their behavior and fate has been a major force driving the recent development of new technologies in cell biology research. Despite rapid advances in this field, many challenges remain in order to bridge the gap between the classical and simple cell culture plate and the biological reality of actual tissue. In tissues, cells have their physical space constrained by neighboring cells and the extracellular matrix. Here, we propose a simple and versatile device to precisely and dynamically control this confinement parameter in cultured cells. We show that there is a precise threshold deformation above which the nuclear lamina breaks and reconstructs, whereas nuclear volume changes. We also show that different nuclear deformations correlate with the expression of specific sets of genes, including nuclear factors and classical mechanotransduction pathways. This versatile device thus enables the precise control of cell and nuclear deformation by confinement and the correlative study of the associated molecular events.
Maël Le Berre; Johannes Aubertin; Matthieu Piel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-5
Journal Detail:
Title:  Integrative biology : quantitative biosciences from nano to macro     Volume:  -     ISSN:  1757-9708     ISO Abbreviation:  Integr Biol (Camb)     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101478378     Medline TA:  Integr Biol (Camb)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
UMR 144 Institut Curie/CNRS, 26 rue d'Ulm, 75248 Paris Cedex 05, France.
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