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arXiv · 1604.03305

Dynamical Crossover in a Stochastic Model of Cell Fate Decision

Hiroki Yamaguchi·Kyogo Kawaguchi·Takahiro Sagawa
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Abstract

We study the asymptotic behaviors of stochastic cell fate decision between proliferation and differentiation. We propose a model of a self-replicating Langevin system, where cells choose their fate (i.e. proliferation or differentiation) depending on local cell density. Based on this model, we propose a scenario for multi-cellular organisms to maintain the density of cells (i.e., homeostasis) through finite-ranged cell-cell interactions. Furthermore, we numerically show that the distribution of the number of descendant cells changes over time, thus unifying the previously proposed two models regarding homeostasis: the critical birth death process and the voter model. Our results provide a general platform for the study of stochastic cell fate decision in terms of nonequilibrium statistical mechanics.

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Hiroki Yamaguchi, Kyogo Kawaguchi, Takahiro Sagawa. 2017-05-23. Dynamical Crossover in a Stochastic Model of Cell Fate Decision. https://doi.org/10.1103/physreve.96.012401

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