Nonparametric Simulation of Signal Transduction Networks with Semi-Synchronized Update

Isar Nassiri, Ali Masoudi-Nejad, Mahdi Jalili and Ali Moeini

PLOS ONE, 2012, vol. 7, issue 6, 1-9

Abstract: Simulating signal transduction in cellular signaling networks provides predictions of network dynamics by quantifying the changes in concentration and activity-level of the individual proteins. Since numerical values of kinetic parameters might be difficult to obtain, it is imperative to develop non-parametric approaches that combine the connectivity of a network with the response of individual proteins to signals which travel through the network. The activity levels of signaling proteins computed through existing non-parametric modeling tools do not show significant correlations with the observed values in experimental results. In this work we developed a non-parametric computational framework to describe the profile of the evolving process and the time course of the proportion of active form of molecules in the signal transduction networks. The model is also capable of incorporating perturbations. The model was validated on four signaling networks showing that it can effectively uncover the activity levels and trends of response during signal transduction process.

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0039643

DOI: 10.1371/journal.pone.0039643

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