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Boolean Modeling of Cellular and Molecular Pathways Involved in Influenza Infection


Affiliations
1 Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14642, United States
 

Systems virology integrates host-directed approaches with molecular profiling to understand viral pathogenesis. Self-contained statistical approaches that combine expression profiles of genes with the available databases defining the genes involved in the pathways (gene-sets) have allowed characterization of predictive gene-signatures associated with outcome of the influenza virus (IV) infection. However, such enrichment techniques do not take into account interactions among pathways that are responsible for the IV infection pathogenesis. We investigate dendritic cell response to seasonal H1N1 influenza A/New Caledonia/20/1999 (NC) infection and infer the Boolean logic rules underlying the interaction network of ligand induced signaling pathways and transcription factors. The model reveals several novel regulatory modes and provides insights into mechanism of cross talk between NF𝜅B and IRF mediated signaling. Additionally, the logic rule underlying the regulation of IL2 pathway that was predicted by the Boolean model was experimentally validated.Thus, the model developed in this paper integrates pathway analysis tools with the dynamic modeling approaches to reveal the regulation between signaling pathways and transcription factors using genome-wide transcriptional profiles measured upon influenza infection.
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  • Boolean Modeling of Cellular and Molecular Pathways Involved in Influenza Infection

Abstract Views: 88  |  PDF Views: 1

Authors

Christopher S. Anderson
Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14642, United States
Marta L. DeDiego
Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14642, United States
David J. Topham
Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14642, United States
Juilee Thakar
Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14642, United States

Abstract


Systems virology integrates host-directed approaches with molecular profiling to understand viral pathogenesis. Self-contained statistical approaches that combine expression profiles of genes with the available databases defining the genes involved in the pathways (gene-sets) have allowed characterization of predictive gene-signatures associated with outcome of the influenza virus (IV) infection. However, such enrichment techniques do not take into account interactions among pathways that are responsible for the IV infection pathogenesis. We investigate dendritic cell response to seasonal H1N1 influenza A/New Caledonia/20/1999 (NC) infection and infer the Boolean logic rules underlying the interaction network of ligand induced signaling pathways and transcription factors. The model reveals several novel regulatory modes and provides insights into mechanism of cross talk between NF𝜅B and IRF mediated signaling. Additionally, the logic rule underlying the regulation of IL2 pathway that was predicted by the Boolean model was experimentally validated.Thus, the model developed in this paper integrates pathway analysis tools with the dynamic modeling approaches to reveal the regulation between signaling pathways and transcription factors using genome-wide transcriptional profiles measured upon influenza infection.