Cortical flow-driven shapes of nonadherent cells

A. Callan Jones, V. Ruprecht, S. Wieser, C.-P.J. Heisenberg, R. Voituriez, Physical Review Letters 116 (2016).

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Journal Article | Published | English
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Department
Abstract
Nonadherent polarized cells have been observed to have a pearlike, elongated shape. Using a minimal model that describes the cell cortex as a thin layer of contractile active gel, we show that the anisotropy of active stresses, controlled by cortical viscosity and filament ordering, can account for this morphology. The predicted shapes can be determined from the flow pattern only; they prove to be independent of the mechanism at the origin of the cortical flow, and are only weakly sensitive to the cytoplasmic rheology. In the case of actin flows resulting from a contractile instability, we propose a phase diagram of three-dimensional cell shapes that encompasses nonpolarized spherical, elongated, as well as oblate shapes, all of which have been observed in experiment.
Publishing Year
Date Published
2016-01-15
Journal Title
Physical Review Letters
Acknowledgement
V. R. acknowledges support by the Austrian Science Fund (FWF): (Grant No. T560-B17).
Volume
116
Issue
2
Article Number
028102
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Callan Jones A, Ruprecht V, Wieser S, Heisenberg C-PJ, Voituriez R. Cortical flow-driven shapes of nonadherent cells. Physical Review Letters. 2016;116(2). doi:10.1103/PhysRevLett.116.028102
Callan Jones, A., Ruprecht, V., Wieser, S., Heisenberg, C.-P. J., & Voituriez, R. (2016). Cortical flow-driven shapes of nonadherent cells. Physical Review Letters, 116(2). https://doi.org/10.1103/PhysRevLett.116.028102
Callan Jones, Andrew, Verena Ruprecht, Stefan Wieser, Carl-Philipp J Heisenberg, and Raphaël Voituriez. “Cortical Flow-Driven Shapes of Nonadherent Cells.” Physical Review Letters 116, no. 2 (2016). https://doi.org/10.1103/PhysRevLett.116.028102.
A. Callan Jones, V. Ruprecht, S. Wieser, C.-P. J. Heisenberg, and R. Voituriez, “Cortical flow-driven shapes of nonadherent cells,” Physical Review Letters, vol. 116, no. 2, 2016.
Callan Jones A, Ruprecht V, Wieser S, Heisenberg C-PJ, Voituriez R. 2016. Cortical flow-driven shapes of nonadherent cells. Physical Review Letters. 116(2).
Callan Jones, Andrew, et al. “Cortical Flow-Driven Shapes of Nonadherent Cells.” Physical Review Letters, vol. 116, no. 2, 028102, American Physical Society, 2016, doi:10.1103/PhysRevLett.116.028102.

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