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• W2005088757 startingPage "e1003122" @default.
• W2005088757 abstract "Chemotaxis involves the coordinated action of separable but interrelated processes: motility, gradient sensing, and polarization. We have hypothesized that these are mediated by separate modules that account for these processes individually and that, when combined, recreate most of the behaviors of chemotactic cells. Here, we describe a mathematical model where the modules are implemented in terms of reaction-diffusion equations. Migration and the accompanying changes in cellular morphology are demonstrated in simulations using a mechanical model of the cell cortex implemented in the level set framework. The central module is an excitable network that accounts for random migration. The response to combinations of uniform stimuli and gradients is mediated by a local excitation, global inhibition module that biases the direction in which excitability is directed. A polarization module linked to the excitable network through the cytoskeleton allows unstimulated cells to move persistently and, for cells in gradients, to gradually acquire distinct sensitivity between front and back. Finally, by varying the strengths of various feedback loops in the model we obtain cellular behaviors that mirror those of genetically altered cell lines." @default.
• W2005088757 created "2016-06-24" @default.
• W2005088757 creator A5004842912 @default.
• W2005088757 creator A5049458047 @default.
• W2005088757 creator A5058852571 @default.
• W2005088757 creator A5091366547 @default.
• W2005088757 date "2013-07-04" @default.
• W2005088757 modified "2023-10-12" @default.
• W2005088757 title "Interaction of Motility, Directional Sensing, and Polarity Modules Recreates the Behaviors of Chemotaxing Cells" @default.
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• W2005088757 doi "https://doi.org/10.1371/journal.pcbi.1003122" @default.
• W2005088757 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3701696" @default.
• W2005088757 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23861660" @default.
• W2005088757 hasPublicationYear "2013" @default.
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