Stability and Roughness of Interfaces in Mechanically Regulated Tissues.

  title={Stability and Roughness of Interfaces in Mechanically Regulated Tissues.},
  author={John J. Williamson and Guillaume Salbreux},
  journal={Physical review letters},
  volume={121 23},
Cell division and death can be regulated by the mechanical forces within a tissue. We study the consequences for the stability and roughness of a propagating interface by analyzing a model of mechanically regulated tissue growth in the regime of small driving forces. For an interface driven by homeostatic pressure imbalance or leader-cell motility, long and intermediate-wavelength instabilities arise, depending, respectively, on an effective viscosity of cell number change, and on substrate… 

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