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Integrating literature-constrained and data-driven inference of signalling networks

AuthorsEduati, Federica; De Las Rivas, Javier ; Sáez-Rodríguez, Julio
Issue Date25-Jun-2012
PublisherOxford University Press
CitationBioinformatics 28(18): 2311-2317 (2012)
AbstractRecent developments in experimental methods allow generating increasingly larger signal transduction datasets. Two main approaches can be taken to derive from these data a mathematical model: to train a network (obtained e.g. from literature) to the data, or to infer the network from the data alone. Purely data-driven methods scale up poorly and have limited interpretability, while literature- constrained methods cannot deal with incomplete networks. Results: We present an efficient approach, implemented in the R package CNORfeeder, to integrate literature-constrained and datadriven methods to infer signalling networks from perturbation experiments. Our method extends a given network with links derived from the data via various inference methods, and uses information on physical interactions of proteins to guide and validate the integration of links. We apply CNORfeeder to a network of growth and inflammatory signalling, obtaining a model with superior data fit in the human liver cancer HepG2 and proposes potential missing pathways.
DescriptionThis is an Open Access article distributed under the terms of the Creative Commons Attribution License.-- et al.
Publisher version (URL)http://dx.doi.org/10.1093/bioinformatics/bts363
Appears in Collections:(IBMCC) Artículos
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