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Identifying novel biomarkers of the pediatric influenza infection by weighted co-expression network analysis

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  • Identifying novel biomarkers of the pediatric influenza infection by weighted co-expression network analysis


    Virol J. 2019 Oct 29;16(1):124. doi: 10.1186/s12985-019-1231-8. Identifying novel biomarkers of the pediatric influenza infection by weighted co-expression network analysis.

    Zarei Ghobadi M1,2, Mozhgani SH3,4, Farzanehpour M1, Behzadian F5.
    Author information

    1 Department of Virology, School of Public Health Tehran University of Medical Sciences, Tehran, Iran. 2 Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran. 3 Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran. 4 Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran. 5 Department of Bioscience and Biotechnology, Malek Ashtar University of Technology, Tehran, Iran. fbehzad@mut.ac.ir.

    Abstract

    BACKGROUND:

    Despite the high yearly prevalence of Influenza, the pathogenesis mechanism and involved genes have not been fully known. Finding the patterns and mapping the complex interactions between different genes help us to find the possible biomarkers and treatment targets.
    METHODS:

    Herein, weighted gene co-expression network analysis (WGCNA) was employed to construct a co-expression network among genes identified by microarray analysis of the pediatric influenza-infected samples.
    RESULTS:

    Three of the 38 modules were found as the most related modules to influenza infection. At a functional level, we found that the genes in these modules regulate the immune responses, protein targeting, and defense to virus. Moreover, the analysis of differentially expressed genes disclosed 719 DEGs between the normal and infected subjects. The comprehensive investigation of genes in the module involved in immune system and viral defense (yellow module) revealed that SP110, HERC5, SAMD9L, RTP4, C19orf66, HELZ2, EPSTI1, and PHF11 which were also identified as DEGs (except C19orf66) have the potential to be as the biomarkers and also drug targeting for the treatment of pediatric influenza.
    CONCLUSIONS:

    The WGCN analysis revealed co-expressed genes which were involved in the innate immune system and defense to virus. The differentially expressed genes in the identified modules can be considered for designing drug targets. Moreover, modules can help to find pathogenesis routes in the future.


    KEYWORDS:

    Biomarker; Co-expression network; Influenza; Pathogenesis

    PMID: 31665046 PMCID: PMC6819563 DOI: 10.1186/s12985-019-1231-8
    Free PMC Article

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