Statistical inference of the time-varying structure of gene-regulation networks.
Statistical inference of the time-varying structure of gene-regulation networks.
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DOI:
10.1186/1752-0509-4-130
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发表时间:
2010-09-22
影响因子:
--
通讯作者:
Lelandais G
中科院分区:
文献类型:
--
作者:
Lèbre S;Becq J;Devaux F;Stumpf MP;Lelandais G
Biological networks are highly dynamic in response to environmental and physiological cues. This variability is in contrast to conventional analyses of biological networks, which have overwhelmingly employed static graph models which stay constant over time to describe biological systems and their underlying molecular interactions. To overcome these limitations, we propose here a new statistical modelling framework, the ARTIVA formalism (Auto Regressive TIme VArying models), and an associated inferential procedure that allows us to learn temporally varying gene-regulation networks from biological time-course expression data. ARTIVA simultaneously infers the topology of a regulatory network and how it changes over time. It allows us to recover the chronology of regulatory associations for individual genes involved in a specific biological process (development, stress response, etc.). We demonstrate that the ARTIVA approach generates detailed insights into the function and dynamics of complex biological systems and exploits efficiently time-course data in systems biology. In particular, two biological scenarios are analyzed: the developmental stages of Drosophila melanogaster and the response of Saccharomyces cerevisiae to benomyl poisoning. ARTIVA does recover essential temporal dependencies in biological systems from transcriptional data, and provide a natural starting point to learn and investigate their dynamics in greater detail.
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影响因子:
5.3
作者:
Lucau-Danila, A;Lelandais, G;Jacq, C
通讯作者:
Jacq, C
影响因子:
64.5
作者:
Bonneau, Richard;Facciotti, Marc T.;Baliga, Nitin S.
通讯作者:
Baliga, Nitin S.
DOI:
10.2202/1544-6115.1294
发表时间:
2009-01-01
影响因子:
0.9
作者:
Lebre, Sophie
通讯作者:
Lebre, Sophie
DOI:
10.1073/pnas.0901910106
发表时间:
2009-07-21
影响因子:
11.1
作者:
Ahmed, Amr;Xing, Eric P.
通讯作者:
Xing, Eric P.
影响因子:
46.9
作者:
Needham, CJ;Bradford, JR;Westhead, DR
通讯作者:
Westhead, DR