Undulation Instability of Epithelial Tissues

Details Undulation Instability of Epithelial Tissues Undulation Instability of Epithelial Tissues

2011-05-10

arxiv.org/abs/1105.2032v1

Phys. Rev. Lett. 106, 158101 (2011)

Physics

Biological Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.106.158101

Treating the epithelium as an incompressible fluid adjacent to a viscoelastic stroma, we find a novel hydrodynamic instability that leads to the formation of protrusions of the epithelium into the stroma. This instability is a candidate for epithelial fingering observed in vivo. It occurs for sufficiently large viscosity, cell-division rate and thickness of the dividing region in the epithelium. Our work provides physical insight into a potential mechanism by which interfaces between epithelia and stromas undulate, and potentially by which tissue dysplasia leads to cancerous invasion.

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