Time-correlated forces and biological variability in cell motility

T.N. Azevedo and L.G. Rizzi

Physica A: Statistical Mechanics and its Applications, 2022, vol. 604, issue C

Abstract: Cell motility is one of the most fundamental phenomena underlying biological processes that maintain living organisms alive. Here we consider a simple model to describe the motility of cells which include not only time-correlated internal forces but also the biological variability which is inherent of the intra-cellular biochemical processes. Such model allow us to derive exact expressions for the mean-squared displacement and the effective time-dependent diffusion coefficient which are compared to numerical results obtained from non-markovian stochastic simulations. In addition, we show that the heterogeneity of persistence times lead to non-gaussian distributions which can be obtained analytically and that were validated by the numerical simulations. Our results indicate that such model might be used to describe the behaviour observed in experimental results obtained for isolated cells without external signalling.

Keywords: Cell motility; Time-correlated forces; Biological variability (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:604:y:2022:i:c:s0378437122005817

DOI: 10.1016/j.physa.2022.127909

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