Active elastic thin shell theory for cellular deformations

H. Berthoumieux, J.-L. Maître, C.-P.J. Heisenberg, E. Paluch, F. Julicher, G. Salbreux, New Journal of Physics 16 (2014).

Download
OA 941.39 KB

Journal Article | Published | English
Author
; ; ; ; ;
Department
Abstract
We derive the equations for a thin, axisymmetric elastic shell subjected to an internal active stress giving rise to active tension and moments within the shell. We discuss the stability of a cylindrical elastic shell and its response to a localized change in internal active stress. This description is relevant to describe the cellular actomyosin cortex, a thin shell at the cell surface behaving elastically at a short timescale and subjected to active internal forces arising from myosin molecular motor activity. We show that the recent observations of cell deformation following detachment of adherent cells (Maître J-L et al 2012 Science 338 253-6) are well accounted for by this mechanical description. The actin cortex elastic and bending moduli can be obtained from a quantitative analysis of cell shapes observed in these experiments. Our approach thus provides a non-invasive, imaging-based method for the extraction of cellular physical parameters.
Publishing Year
Date Published
2014-06-01
Journal Title
New Journal of Physics
Volume
16
Article Number
065005
IST-REx-ID

Cite this

Berthoumieux H, Maître J-L, Heisenberg C-PJ, Paluch E, Julicher F, Salbreux G. Active elastic thin shell theory for cellular deformations. New Journal of Physics. 2014;16. doi:10.1088/1367-2630/16/6/065005
Berthoumieux, H., Maître, J.-L., Heisenberg, C.-P. J., Paluch, E., Julicher, F., & Salbreux, G. (2014). Active elastic thin shell theory for cellular deformations. New Journal of Physics, 16. https://doi.org/10.1088/1367-2630/16/6/065005
Berthoumieux, Hélène, Jean-Léon Maître, Carl-Philipp J Heisenberg, Ewa Paluch, Frank Julicher, and Guillaume Salbreux. “Active Elastic Thin Shell Theory for Cellular Deformations.” New Journal of Physics 16 (2014). https://doi.org/10.1088/1367-2630/16/6/065005.
H. Berthoumieux, J.-L. Maître, C.-P. J. Heisenberg, E. Paluch, F. Julicher, and G. Salbreux, “Active elastic thin shell theory for cellular deformations,” New Journal of Physics, vol. 16, 2014.
Berthoumieux H, Maître J-L, Heisenberg C-PJ, Paluch E, Julicher F, Salbreux G. 2014. Active elastic thin shell theory for cellular deformations. New Journal of Physics. 16.
Berthoumieux, Hélène, et al. “Active Elastic Thin Shell Theory for Cellular Deformations.” New Journal of Physics, vol. 16, 065005, IOP Publishing Ltd., 2014, doi:10.1088/1367-2630/16/6/065005.
All files available under the following license(s):
Creative Commons License:
CC-BYCreative Commons Attribution 4.0 International Public License (CC-BY 4.0)
Main File(s)
Access Level
OA Open Access
Last Uploaded
2018-12-12T10:16:16Z


Export

Marked Publications

Open Data IST Research Explorer

Search this title in

Google Scholar