Active dynamics of tissue shear flow - Archive ouverte HAL Access content directly
Journal Articles New Journal of Physics Year : 2017

Active dynamics of tissue shear flow

(1) , (2, 1) , (3, 1) , (4, 5) , (5) , (1) , (6, 1)
1
2
3
4
5
6

Abstract

We present a hydrodynamic theory to describe shear flows in developing epithelial tissues. We introduce hydrodynamic fields corresponding to state properties of constituent cells as well as a contribution to overall tissue shear flow due to rearrangements in cell network topology. We then construct a generic linear constitutive equation for the shear rate due to topological rearrangements and we investigate a novel rheological behaviour resulting from memory effects in the tissue. We identify two distinct active cellular processes: generation of active stress in the tissue, and actively driven topological rearrangements. We find that these two active processes can produce distinct cellular and tissue shape changes, depending on boundary conditions applied on the tissue. Our findings have consequences for the understanding of tissue morphogenesis during development.
Fichier principal
Vignette du fichier
Popović et al. - 2017 - Active dynamics of tissue shear flow.pdf (1.53 Mo) Télécharger le fichier
Origin : Publication funded by an institution
Loading...

Dates and versions

pasteur-01545826 , version 1 (23-06-2017)

Licence

Attribution - CC BY 4.0

Identifiers

Cite

Marko Popović, Amitabha Nandi, Matthias Merkel, Raphael Etournay, Suzanne Eaton, et al.. Active dynamics of tissue shear flow. New Journal of Physics, 2017, 19 (3), pp.033006. ⟨10.1088/1367-2630/aa5756⟩. ⟨pasteur-01545826⟩

Collections

PASTEUR
258 View
215 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More