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    Dynamic gene network reconstruction from gene expression data in mice after influenza A (H1N1) infection

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    Authors
    Dimitrakopoulou, Konstantina
    Tsimpouris, Charalampos
    Papadopoulos, George
    Pommerenke, Claudia cc
    Wilk, Esther cc
    Sgarbas, Kyriakos N
    Schughart, Klaus
    Bezerianos, Anastasios
    Issue Date
    2011-10-21
    
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    Abstract
    Abstract Background The immune response to viral infection is a temporal process, represented by a dynamic and complex network of gene and protein interactions. Here, we present a reverse engineering strategy aimed at capturing the temporal evolution of the underlying Gene Regulatory Networks (GRN). The proposed approach will be an enabling step towards comprehending the dynamic behavior of gene regulation circuitry and mapping the network structure transitions in response to pathogen stimuli. Results We applied the Time Varying Dynamic Bayesian Network (TV-DBN) method for reconstructing the gene regulatory interactions based on time series gene expression data for the mouse C57BL/6J inbred strain after infection with influenza A H1N1 (PR8) virus. Initially, 3500 differentially expressed genes were clustered with the use of k-means algorithm. Next, the successive in time GRNs were built over the expression profiles of cluster centroids. Finally, the identified GRNs were examined with several topological metrics and available protein-protein and protein-DNA interaction data, transcription factor and KEGG pathway data. Conclusions Our results elucidate the potential of TV-DBN approach in providing valuable insights into the temporal rewiring of the lung transcriptome in response to H1N1 virus.
    Citation
    Journal of Clinical Bioinformatics. 2011 Oct 21;1(1):27
    URI
    http://dx.doi.org/10.1186/2043-9113-1-27
    http://hdl.handle.net/10033/620995
    Type
    Journal Article
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    publications of the research group infection genetics (INFG)

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