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Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway

MicroRNAs (miRNAs) are essential regulators of gene expression in humans and can control pathogenesis and host–virus interactions. Notably, the role of specific host miRNAs during influenza virus infections are still ill-defined. The central goal of this study was to identify novel miRNAs and their...

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Autores principales: Othumpangat, Sreekumar, Beezhold, Donald H., Umbright, Christina M., Noti, John D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8224765/
https://www.ncbi.nlm.nih.gov/pubmed/34071096
http://dx.doi.org/10.3390/v13060967
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author Othumpangat, Sreekumar
Beezhold, Donald H.
Umbright, Christina M.
Noti, John D.
author_facet Othumpangat, Sreekumar
Beezhold, Donald H.
Umbright, Christina M.
Noti, John D.
author_sort Othumpangat, Sreekumar
collection PubMed
description MicroRNAs (miRNAs) are essential regulators of gene expression in humans and can control pathogenesis and host–virus interactions. Notably, the role of specific host miRNAs during influenza virus infections are still ill-defined. The central goal of this study was to identify novel miRNAs and their target genes in response to influenza virus infections in airway epithelium. Human airway epithelial cells exposed to influenza A virus (IAV) induced several novel miRNAs that were identified using next-generation sequencing (NGS) and their target genes by biochemical methods. NGS analysis predicted forty-two RNA sequences as possible miRNAs based on computational algorithms. The expression patterns of these putative miRNAs were further confirmed using RT-PCR in human bronchial epithelial cells exposed to H1N1, H9N1(1P10), and H9N1 (1WF10) strains of influenza virus. A time-course study showed significant downregulation of put-miR-34 in H1N1 and put-miR-35 in H9N1(1P10)-infected cells, which is consistent with the NGS data. Additionally, put-miR-34 and put-miR-35 showed a high fold enrichment in an argonaute-immunoprecipitation assay compared to the controls, indicating their ability to form a complex with argonaute protein and RNA-induced silencing complex (RISC), which is a typical mode of action found with miRNAs. Our earlier studies have shown that the replication and survival of influenza virus is modulated by certain transcription factors such as NF-ĸB. To identify the target(s) of these putative miRNAs, we screened 84 transcription factors that have a role in viral pathogenesis. Cells transfected with mimic of the put-miR-34 showed a significant decrease in the expression of Signal Transducers and Activators of Transcription 3 (STAT3), whereas the inhibitor of put-miR-34 showed a significant increase in STAT3 expression and its phosphorylation. In addition, put-miR-34 had 76% homology to the untranslated region of STAT3. NGS and PCR array data submitted to the Gene Ontology project also predicted the role of transcription factors modulated by put-miR-34. Our data suggest that put-miR-34 may be a good target for antiviral therapy.
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spelling pubmed-82247652021-06-25 Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway Othumpangat, Sreekumar Beezhold, Donald H. Umbright, Christina M. Noti, John D. Viruses Article MicroRNAs (miRNAs) are essential regulators of gene expression in humans and can control pathogenesis and host–virus interactions. Notably, the role of specific host miRNAs during influenza virus infections are still ill-defined. The central goal of this study was to identify novel miRNAs and their target genes in response to influenza virus infections in airway epithelium. Human airway epithelial cells exposed to influenza A virus (IAV) induced several novel miRNAs that were identified using next-generation sequencing (NGS) and their target genes by biochemical methods. NGS analysis predicted forty-two RNA sequences as possible miRNAs based on computational algorithms. The expression patterns of these putative miRNAs were further confirmed using RT-PCR in human bronchial epithelial cells exposed to H1N1, H9N1(1P10), and H9N1 (1WF10) strains of influenza virus. A time-course study showed significant downregulation of put-miR-34 in H1N1 and put-miR-35 in H9N1(1P10)-infected cells, which is consistent with the NGS data. Additionally, put-miR-34 and put-miR-35 showed a high fold enrichment in an argonaute-immunoprecipitation assay compared to the controls, indicating their ability to form a complex with argonaute protein and RNA-induced silencing complex (RISC), which is a typical mode of action found with miRNAs. Our earlier studies have shown that the replication and survival of influenza virus is modulated by certain transcription factors such as NF-ĸB. To identify the target(s) of these putative miRNAs, we screened 84 transcription factors that have a role in viral pathogenesis. Cells transfected with mimic of the put-miR-34 showed a significant decrease in the expression of Signal Transducers and Activators of Transcription 3 (STAT3), whereas the inhibitor of put-miR-34 showed a significant increase in STAT3 expression and its phosphorylation. In addition, put-miR-34 had 76% homology to the untranslated region of STAT3. NGS and PCR array data submitted to the Gene Ontology project also predicted the role of transcription factors modulated by put-miR-34. Our data suggest that put-miR-34 may be a good target for antiviral therapy. MDPI 2021-05-23 /pmc/articles/PMC8224765/ /pubmed/34071096 http://dx.doi.org/10.3390/v13060967 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Othumpangat, Sreekumar
Beezhold, Donald H.
Umbright, Christina M.
Noti, John D.
Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway
title Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway
title_full Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway
title_fullStr Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway
title_full_unstemmed Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway
title_short Influenza Virus-Induced Novel miRNAs Regulate the STAT Pathway
title_sort influenza virus-induced novel mirnas regulate the stat pathway
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8224765/
https://www.ncbi.nlm.nih.gov/pubmed/34071096
http://dx.doi.org/10.3390/v13060967
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