28–31 Aug 2018
EPFL
Europe/Zurich timezone

【931】 Modelling the Relationship Between Cell Geometry and Traction Force Distribution

29 Aug 2018, 18:30
1h 30m
Salle polyvalente (EPFL)

Salle polyvalente

EPFL

Poster Biophysics, Medical Physics and Soft Matter Poster Session

Speaker

Zeno Messi (EPFL - EPF Lausanne)

Description

Traction forces are critical for the interaction of the cell with its environment, cell polarization and motion. We have recently observed that traction stress that the cell exerts on the substrate is correlated to the cell-edge dynamics and increases with the distance between the cell edge and the center. In this work, we test if these features of traction force distribution could be reproduced by a simple model of force transmission in the actomyosin network (Ronceray et al., PNAS, 2015, doi:10.1073). We observe that in the case of a centripetal force located in the center of the cell, the force decays with distance. Force dipoles distributed throughout the cell lead to more complex force distributions which are currently under investigation.

Authors

Zeno Messi (EPFL - EPF Lausanne) Dr Franck Raynaud (UNIL) Alexander Verkhovsky (EPFL)

Presentation materials

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