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Liang Y. Pathogenicity and virulence of influenza. Virulence 2023; 14:2223057. [PMID: 37339323 DOI: 10.1080/21505594.2023.2223057] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/22/2023] Open
Abstract
Influenza viruses, including four major types (A, B, C, and D), can cause mild-to-severe and lethal diseases in humans and animals. Influenza viruses evolve rapidly through antigenic drift (mutation) and shift (reassortment of the segmented viral genome). New variants, strains, and subtypes have emerged frequently, causing epidemic, zoonotic, and pandemic infections, despite currently available vaccines and antiviral drugs. In recent years, avian influenza viruses, such as H5 and H7 subtypes, have caused hundreds to thousands of zoonotic infections in humans with high case fatality rates. The likelihood of these animal influenza viruses acquiring airborne transmission in humans through viral evolution poses great concern for the next pandemic. Severe influenza viral disease is caused by both direct viral cytopathic effects and exacerbated host immune response against high viral loads. Studies have identified various mutations in viral genes that increase viral replication and transmission, alter tissue tropism or species specificity, and evade antivirals or pre-existing immunity. Significant progress has also been made in identifying and characterizing the host components that mediate antiviral responses, pro-viral functions, or immunopathogenesis following influenza viral infections. This review summarizes the current knowledge on viral determinants of influenza virulence and pathogenicity, protective and immunopathogenic aspects of host innate and adaptive immune responses, and antiviral and pro-viral roles of host factors and cellular signalling pathways. Understanding the molecular mechanisms of viral virulence factors and virus-host interactions is critical for the development of preventive and therapeutic measures against influenza diseases.
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Affiliation(s)
- Yuying Liang
- Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA
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2
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Haas KM, McGregor MJ, Bouhaddou M, Polacco BJ, Kim EY, Nguyen TT, Newton BW, Urbanowski M, Kim H, Williams MAP, Rezelj VV, Hardy A, Fossati A, Stevenson EJ, Sukerman E, Kim T, Penugonda S, Moreno E, Braberg H, Zhou Y, Metreveli G, Harjai B, Tummino TA, Melnyk JE, Soucheray M, Batra J, Pache L, Martin-Sancho L, Carlson-Stevermer J, Jureka AS, Basler CF, Shokat KM, Shoichet BK, Shriver LP, Johnson JR, Shaw ML, Chanda SK, Roden DM, Carter TC, Kottyan LC, Chisholm RL, Pacheco JA, Smith ME, Schrodi SJ, Albrecht RA, Vignuzzi M, Zuliani-Alvarez L, Swaney DL, Eckhardt M, Wolinsky SM, White KM, Hultquist JF, Kaake RM, García-Sastre A, Krogan NJ. Proteomic and genetic analyses of influenza A viruses identify pan-viral host targets. Nat Commun 2023; 14:6030. [PMID: 37758692 PMCID: PMC10533562 DOI: 10.1038/s41467-023-41442-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Influenza A Virus (IAV) is a recurring respiratory virus with limited availability of antiviral therapies. Understanding host proteins essential for IAV infection can identify targets for alternative host-directed therapies (HDTs). Using affinity purification-mass spectrometry and global phosphoproteomic and protein abundance analyses using three IAV strains (pH1N1, H3N2, H5N1) in three human cell types (A549, NHBE, THP-1), we map 332 IAV-human protein-protein interactions and identify 13 IAV-modulated kinases. Whole exome sequencing of patients who experienced severe influenza reveals several genes, including scaffold protein AHNAK, with predicted loss-of-function variants that are also identified in our proteomic analyses. Of our identified host factors, 54 significantly alter IAV infection upon siRNA knockdown, and two factors, AHNAK and coatomer subunit COPB1, are also essential for productive infection by SARS-CoV-2. Finally, 16 compounds targeting our identified host factors suppress IAV replication, with two targeting CDK2 and FLT3 showing pan-antiviral activity across influenza and coronavirus families. This study provides a comprehensive network model of IAV infection in human cells, identifying functional host targets for pan-viral HDT.
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Affiliation(s)
- Kelsey M Haas
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Michael J McGregor
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Mehdi Bouhaddou
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Benjamin J Polacco
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Eun-Young Kim
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Thong T Nguyen
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
| | - Billy W Newton
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
| | - Matthew Urbanowski
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Heejin Kim
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Michael A P Williams
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Veronica V Rezelj
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
- Institut Pasteur, Viral Populations and Pathogenesis Unit, CNRS UMR 3569, Paris, France
| | - Alexandra Hardy
- Institut Pasteur, Viral Populations and Pathogenesis Unit, CNRS UMR 3569, Paris, France
| | - Andrea Fossati
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Erica J Stevenson
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Ellie Sukerman
- Division of Infectious Diseases, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Tiffany Kim
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Sudhir Penugonda
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Elena Moreno
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Infectious Diseases, Hospital Universitario Ramón y Cajal and IRYCIS, Madrid, Spain
- Centro de Investigación en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Hannes Braberg
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Yuan Zhou
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Giorgi Metreveli
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Bhavya Harjai
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Tia A Tummino
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
- Graduate Program in Pharmaceutical Sciences and Pharmacogenomics, University of California San Francisco, San Francisco, CA, 94158, USA
| | - James E Melnyk
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Margaret Soucheray
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Jyoti Batra
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Lars Pache
- Infectious and Inflammatory Disease Center, Immunity and Pathogenesis Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 92037, USA
| | - Laura Martin-Sancho
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, 92037, USA
- Department of Infectious Disease, Imperial College London, London, SW7 2BX, UK
| | - Jared Carlson-Stevermer
- Synthego Corporation, Redwood City, CA, 94063, USA
- Serotiny Inc., South San Francisco, CA, 94080, USA
| | - Alexander S Jureka
- Molecular Virology and Vaccine Team, Immunology and Pathogenesis Branch, Influenza Division, National Center for Immunization & Respiratory Diseases, Centers for Disease Control & Prevention, Atlanta, GA, 30333, USA
- General Dynamics Information Technology, Federal Civilian Division, Atlanta, GA, 30329, USA
| | - Christopher F Basler
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Kevan M Shokat
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, 20815, USA
| | - Brian K Shoichet
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Leah P Shriver
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO, 63105, USA
- Center for Metabolomics and Isotope Tracing, Washington University in St. Louis, St. Louis, MO, 63105, USA
| | - Jeffrey R Johnson
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Megan L Shaw
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Medical Biosciences, University of the Western Cape, Bellville, 7535, Western Cape, South Africa
| | - Sumit K Chanda
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Dan M Roden
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
- Department of Pharmacology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Tonia C Carter
- Center for Precision Medicine Research, Marshfield Clinic Research Institute, Marshfield, WI, 54449, USA
| | - Leah C Kottyan
- Center of Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
| | - Rex L Chisholm
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Jennifer A Pacheco
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Maureen E Smith
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Steven J Schrodi
- Laboratory of Genetics, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, 53706, USA
| | - Randy A Albrecht
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Marco Vignuzzi
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
- Institut Pasteur, Viral Populations and Pathogenesis Unit, CNRS UMR 3569, Paris, France
| | - Lorena Zuliani-Alvarez
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Danielle L Swaney
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Manon Eckhardt
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
| | - Steven M Wolinsky
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Kris M White
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Judd F Hultquist
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA.
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
- Center for Pathogen Genomics and Microbial Evolution, Northwestern University Havey Institute for Global Health, Chicago, IL, 60611, USA.
| | - Robyn M Kaake
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA.
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA.
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA.
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA.
| | - Adolfo García-Sastre
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA.
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Nevan J Krogan
- J. David Gladstone Institutes, San Francisco, CA, 94158, USA.
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, 94158, USA.
- Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, 94158, USA.
- Quantitative Biosciences Institute (QBI) Coronavirus Research Group (QCRG), San Francisco, CA, 94158, USA.
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Jiang L, Chen H, Li C. Advances in deciphering the interactions between viral proteins of influenza A virus and host cellular proteins. CELL INSIGHT 2023; 2:100079. [PMID: 37193064 PMCID: PMC10134199 DOI: 10.1016/j.cellin.2023.100079] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/28/2023] [Accepted: 01/28/2023] [Indexed: 05/18/2023]
Abstract
Influenza A virus (IAV) poses a severe threat to the health of animals and humans. The genome of IAV consists of eight single-stranded negative-sense RNA segments, encoding ten essential proteins as well as certain accessory proteins. In the process of virus replication, amino acid substitutions continuously accumulate, and genetic reassortment between virus strains readily occurs. Due to this high genetic variability, new viruses that threaten animal and human health can emerge at any time. Therefore, the study on IAV has always been a focus of veterinary medicine and public health. The replication, pathogenesis, and transmission of IAV involve intricate interplay between the virus and host. On one hand, the entire replication cycle of IAV relies on numerous proviral host proteins that effectively allow the virus to adapt to its host and support its replication. On the other hand, some host proteins play restricting roles at different stages of the viral replication cycle. The mechanisms of interaction between viral proteins and host cellular proteins are currently receiving particular interest in IAV research. In this review, we briefly summarize the current advances in our understanding of the mechanisms by which host proteins affect virus replication, pathogenesis, or transmission by interacting with viral proteins. Such information about the interplay between IAV and host proteins could provide insights into how IAV causes disease and spreads, and might help support the development of antiviral drugs or therapeutic approaches.
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Affiliation(s)
- Li Jiang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hualan Chen
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Chengjun Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
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Shum D, Bhinder B, Mahida J, Radu C, Calder PA, Djaballah H. A Genome-Wide RNAi Screen Reveals Common Host-Virus Gene Signatures: Implication for Dengue Antiviral Drug Discovery. GEN BIOTECHNOLOGY 2023; 2:133-148. [PMID: 37928776 PMCID: PMC10623629 DOI: 10.1089/genbio.2023.0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/02/2023] [Indexed: 11/07/2023]
Abstract
Dengue is the most common mosquito-borne viral disease that in recent years has become a major international public health concern. Dengue is a tropical neglected disease with increasing global incidences, affecting millions of people worldwide, and without the availability of specific treatments to combat it. The identification of host-target genes essential for the virus life cycle, for which effective modulators may already exist, would provide an alternative path to a rapid drug development of the much needed antidengue agents. For this purpose, we performed the first genome-wide RNAi screen, combining two high-content readouts for dengue virus infection (DENV E infection intensity) and host cell toxicity (host cell stained nuclei), against an arrayed lentiviral-based short hairpin RNA library covering 16,000 genes with a redundancy of at least 5 hairpins per gene. The screen identified 1924 gene candidates in total; of which, 1730 gene candidates abrogated dengue infection, whereas 194 gene candidates were found to enhance its infectivity in HEK293 cells. A first pass clustering analysis of hits revealed a well-orchestrated gene-network dependency on host cell homeostasis and physiology triggering distinct cellular pathways for infectivity, replication, trafficking, and egress; a second analysis revealed a comprehensive gene signature of 331 genes common to hits identified in 28 published RNAi host-viral interaction screens. Taken together, our findings provide novel antiviral molecular targets with the potential for drug discovery and development.
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Affiliation(s)
- David Shum
- HTS Core Facility, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Bhavneet Bhinder
- HTS Core Facility, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Jeni Mahida
- HTS Core Facility, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Constantin Radu
- HTS Core Facility, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Paul A. Calder
- HTS Core Facility, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Hakim Djaballah
- HTS Core Facility, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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5
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The Contribution of Viral Proteins to the Synergy of Influenza and Bacterial Co-Infection. Viruses 2022; 14:v14051064. [PMID: 35632805 PMCID: PMC9143653 DOI: 10.3390/v14051064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/12/2022] [Accepted: 05/12/2022] [Indexed: 02/04/2023] Open
Abstract
A severe course of acute respiratory disease caused by influenza A virus (IAV) infection is often linked with subsequent bacterial superinfection, which is difficult to cure. Thus, synergistic influenza-bacterial co-infection represents a serious medical problem. The pathogenic changes in the infected host are accelerated as a consequence of IAV infection, reflecting its impact on the host immune response. IAV infection triggers a complex process linked with the blocking of innate and adaptive immune mechanisms required for effective antiviral defense. Such disbalance of the immune system allows for easier initiation of bacterial superinfection. Therefore, many new studies have emerged that aim to explain why viral-bacterial co-infection can lead to severe respiratory disease with possible fatal outcomes. In this review, we discuss the key role of several IAV proteins-namely, PB1-F2, hemagglutinin (HA), neuraminidase (NA), and NS1-known to play a role in modulating the immune defense of the host, which consequently escalates the development of secondary bacterial infection, most often caused by Streptococcus pneumoniae. Understanding the mechanisms leading to pathological disorders caused by bacterial superinfection after the previous viral infection is important for the development of more effective means of prevention; for example, by vaccination or through therapy using antiviral drugs targeted at critical viral proteins.
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Ding XM, Wang YF, Lyu Y, Zou Y, Wang X, Ruan SM, Wu WH, Liu H, Sun Y, Zhang RL, Zhao H, Han Y, Zhao BT, Pan J, Han XY, Wang CR, Zhao HL, Yang GL, Liu LZ, Fang SS. The effect of influenza A (H1N1) pdm09 virus infection on cytokine production and gene expression in BV2 microglial cells. Virus Res 2022; 312:198716. [DOI: 10.1016/j.virusres.2022.198716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/13/2022] [Accepted: 02/16/2022] [Indexed: 02/07/2023]
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7
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Huang K, Mao H, Ren P, Zhang Y, Sun X, Zou Z, Jin M. 139D in NS1 Contributes to the Virulence of H5N6 Influenza Virus in Mice. Front Vet Sci 2022; 8:808234. [PMID: 35127884 PMCID: PMC8814418 DOI: 10.3389/fvets.2021.808234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/28/2021] [Indexed: 11/13/2022] Open
Abstract
H5N6, the highly pathogenic avian influenza A virus (IAV) of clade 2.3.4.4, causes global outbreaks in poultry. H5N6 has become the dominant IAV subtype in waterfowls and causes human infections with high mortality rates. Here, we isolated two strains of H5N6, XGD and JX, from chickens and ducks, respectively. Growth kinetics were evaluated in duck embryo fibroblasts, chicken embryo fibroblasts, Madin-Darby canine kidney cells, and A549 lung carcinoma cells. Receptor binding specificity was analyzed via sialic acid–binding activity assay. The virulence of each strain was tested in BALB/c mice, and recombinant viruses were constructed via reverse genetics to further analyze the pathogenicity. The two strains showed no significant differences in growth kinetics in vitro; however, JX was more virulent in mice than XGD. We also identified 13 mutations in six viral proteins of the two strains through genetic analysis. Our study showed that the NS1 protein played a crucial role in enhancing the virulence of JX. Specifically, the amino acid 139D in NS1 contributed to the high pathogenicity. Therefore, 139D in NS1 might provide insight into the underlying mechanism of IAV adaptation in mammals.
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Affiliation(s)
- Kun Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Haiying Mao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Peilei Ren
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Yufei Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Xiaomei Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Zhong Zou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Meilin Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
- *Correspondence: Meilin Jin
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8
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Trigueiro-Louro J, Santos LA, Almeida F, Correia V, Brito RMM, Rebelo-de-Andrade H. NS1 protein as a novel anti-influenza target: Map-and-mutate antiviral rationale reveals new putative druggable hot spots with an important role on viral replication. Virology 2022; 565:106-116. [PMID: 34773868 DOI: 10.1016/j.virol.2021.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/27/2021] [Accepted: 11/01/2021] [Indexed: 01/28/2023]
Abstract
Influenza NS1 is a promising anti-influenza target, considering its conserved and druggable structure, and key function in influenza replication and pathogenesis. Notwithstanding, target identification and validation, strengthened by experimental data, are lacking. Here, we further explored our previously designed structure-based antiviral rationale directed to highly conserved druggable NS1 regions across a broad spectrum of influenza A viruses. We aimed to identify NS1-mutated viruses exhibiting a reduced growth phenotype and/or an altered cell apoptosis profile. We found that NS1 mutations Y171A, K175A (consensus druggable pocket 1), W102A (consensus druggable pocket 3), Q121A and G184P (multiple consensus druggable pockets) - located at hot spots amenable for pharmacological modulation - significantly impaired A(H1N1)pdm09 virus replication, in vitro. This is the first time that NS1-K175A, -W102A, and -Q121A mutations are characterized. Our map-and-mutate strategy provides the basis to establish the NS1 as a promising target using a rationale with a higher resilience to resistance development.
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Affiliation(s)
- João Trigueiro-Louro
- Host-Pathogen Interaction Unit, Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003, Lisbon, Portugal; Antiviral Resistance Lab, Research & Development Unit, Infectious Diseases Department, Instituto Nacional de Saúde Doutor Ricardo Jorge, IP, Av. Padre Cruz, 1649-016, Lisbon, Portugal.
| | - Luís A Santos
- Antiviral Resistance Lab, Research & Development Unit, Infectious Diseases Department, Instituto Nacional de Saúde Doutor Ricardo Jorge, IP, Av. Padre Cruz, 1649-016, Lisbon, Portugal
| | - Filipe Almeida
- Host-Pathogen Interaction Unit, Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003, Lisbon, Portugal; Antiviral Resistance Lab, Research & Development Unit, Infectious Diseases Department, Instituto Nacional de Saúde Doutor Ricardo Jorge, IP, Av. Padre Cruz, 1649-016, Lisbon, Portugal
| | - Vanessa Correia
- Antiviral Resistance Lab, Research & Development Unit, Infectious Diseases Department, Instituto Nacional de Saúde Doutor Ricardo Jorge, IP, Av. Padre Cruz, 1649-016, Lisbon, Portugal
| | - Rui M M Brito
- Chemistry Department and Coimbra Chemistry Centre, Faculty of Science and Technology, University of Coimbra, 3004-535, Coimbra, Portugal
| | - Helena Rebelo-de-Andrade
- Host-Pathogen Interaction Unit, Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003, Lisbon, Portugal; Antiviral Resistance Lab, Research & Development Unit, Infectious Diseases Department, Instituto Nacional de Saúde Doutor Ricardo Jorge, IP, Av. Padre Cruz, 1649-016, Lisbon, Portugal.
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9
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Zhou L, Bao L, Wang Y, Chen M, Zhang Y, Geng Z, Zhao R, Sun J, Bao Y, Shi Y, Yao R, Guo S, Cui X. An Integrated Analysis Reveals Geniposide Extracted From Gardenia jasminoides J.Ellis Regulates Calcium Signaling Pathway Essential for Influenza A Virus Replication. Front Pharmacol 2021; 12:755796. [PMID: 34867371 PMCID: PMC8640456 DOI: 10.3389/fphar.2021.755796] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/19/2021] [Indexed: 11/13/2022] Open
Abstract
Geniposide, an iridoid glycoside purified from the fruit of Gardenia jasminoides J.Ellis, has been reported to possess pleiotropic activity against different diseases. In particular, geniposide possesses a variety of biological activities and exerts good therapeutic effects in the treatment of several strains of the influenza virus. However, the molecular mechanism for the therapeutic effect has not been well defined. This study aimed to investigate the mechanism of geniposide on influenza A virus (IAV). The potential targets and signaling pathways of geniposide in the IAV infection were predicted using network pharmacology analysis. According to the result of network pharmacology analysis, we validated the calcium signaling pathway induced by IAV and investigated the effect of geniposide extracted from Gardenia jasminoides J.Ellis on this pathway. The primary Gene Ontology (GO) biological processes and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways KEGG enrichment analysis indicated that geniposide has a multi-target and multi-pathway inhibitory effect against influenza, and one of the mechanisms involves calcium signaling pathway. In the current study, geniposide treatment greatly decreased the levels of RNA polymerase in HEK-293T cells infected with IAV. Knocking down CAMKII in IAV-infected HEK-293T cells enhanced virus RNA (vRNA) production. Geniposide treatment increased CAMKII expression after IAV infection. Meanwhile, the CREB and c-Fos expressions were inhibited by geniposide after IAV infection. The experimental validation data showed that the geniposide was able to alleviate extracellular Ca2+ influx, dramatically decreased neuraminidase activity, and suppressed IAV replication in vitro via regulating the calcium signaling pathway. These anti-IAV effects might be related to the disrupted interplay between IAV RNA polymerase and CAMKII and the regulation of the downstream calcium signaling pathway essential for IAV replication. Taken together, the findings reveal a new facet of the mechanism by which geniposide fights IAV in a way that depends on CAMKII replication.
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Affiliation(s)
- Lirun Zhou
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lei Bao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yaxin Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Mengping Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yingying Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Zihan Geng
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ronghua Zhao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Sun
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yanyan Bao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yujing Shi
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Rongmei Yao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shanshan Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiaolan Cui
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
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10
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Xue C, Li G, Lu J, Li L. Crosstalk between circRNAs and the PI3K/AKT signaling pathway in cancer progression. Signal Transduct Target Ther 2021; 6:400. [PMID: 34815385 PMCID: PMC8611092 DOI: 10.1038/s41392-021-00788-w] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/30/2021] [Accepted: 10/08/2021] [Indexed: 02/06/2023] Open
Abstract
Circular RNAs (circRNAs), covalently closed noncoding RNAs, are widely expressed in eukaryotes and viruses. They can function by regulating target gene expression, linear RNA transcription and protein generation. The phosphoinositide 3-kinase (PI3K)/AKT signaling pathway plays key roles in many biological and cellular processes, such as cell proliferation, growth, invasion, migration, and angiogenesis. It also plays a pivotal role in cancer progression. Emerging data suggest that the circRNA/PI3K/AKT axis modulates the expression of cancer-associated genes and thus regulates tumor progression. Aberrant regulation of the expression of circRNAs in the circRNA/PI3K/AKT axis is significantly associated with clinicopathological characteristics and plays an important role in the regulation of biological functions. In this review, we summarized the expression and biological functions of PI3K-AKT-related circRNAs in vitro and in vivo and assessed their associations with clinicopathological characteristics. We also further discussed the important role of circRNAs in the diagnosis, prognostication, and treatment of cancers.
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Affiliation(s)
- Chen Xue
- grid.452661.20000 0004 1803 6319State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
| | - Ganglei Li
- grid.452661.20000 0004 1803 6319Department of Neurosurgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
| | - Juan Lu
- grid.452661.20000 0004 1803 6319State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China.
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11
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How Influenza A Virus NS1 Deals with the Ubiquitin System to Evade Innate Immunity. Viruses 2021; 13:v13112309. [PMID: 34835115 PMCID: PMC8619935 DOI: 10.3390/v13112309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/14/2021] [Accepted: 11/18/2021] [Indexed: 12/11/2022] Open
Abstract
Ubiquitination is a post-translational modification regulating critical cellular processes such as protein degradation, trafficking and signaling pathways, including activation of the innate immune response. Therefore, viruses, and particularly influenza A virus (IAV), have evolved different mechanisms to counteract this system to perform proper infection. Among IAV proteins, the non-structural protein NS1 is shown to be one of the main virulence factors involved in these viral hijackings. NS1 is notably able to inhibit the host's antiviral response through the perturbation of ubiquitination in different ways, as discussed in this review.
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12
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Kleinehr J, Wilden JJ, Boergeling Y, Ludwig S, Hrincius ER. Metabolic Modifications by Common Respiratory Viruses and Their Potential as New Antiviral Targets. Viruses 2021; 13:2068. [PMID: 34696497 PMCID: PMC8540840 DOI: 10.3390/v13102068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/22/2021] [Accepted: 10/09/2021] [Indexed: 12/11/2022] Open
Abstract
Respiratory viruses are known to be the most frequent causative mediators of lung infections in humans, bearing significant impact on the host cell signaling machinery due to their host-dependency for efficient replication. Certain cellular functions are actively induced by respiratory viruses for their own benefit. This includes metabolic pathways such as glycolysis, fatty acid synthesis (FAS) and the tricarboxylic acid (TCA) cycle, among others, which are modified during viral infections. Here, we summarize the current knowledge of metabolic pathway modifications mediated by the acute respiratory viruses respiratory syncytial virus (RSV), rhinovirus (RV), influenza virus (IV), parainfluenza virus (PIV), coronavirus (CoV) and adenovirus (AdV), and highlight potential targets and compounds for therapeutic approaches.
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Affiliation(s)
- Jens Kleinehr
- Institute of Virology Muenster (IVM), Westfaelische Wilhelms-University Muenster, Von-Esmarch-Str. 56, D-48149 Muenster, Germany; (J.K.); (J.J.W.); (Y.B.); (S.L.)
| | - Janine J. Wilden
- Institute of Virology Muenster (IVM), Westfaelische Wilhelms-University Muenster, Von-Esmarch-Str. 56, D-48149 Muenster, Germany; (J.K.); (J.J.W.); (Y.B.); (S.L.)
| | - Yvonne Boergeling
- Institute of Virology Muenster (IVM), Westfaelische Wilhelms-University Muenster, Von-Esmarch-Str. 56, D-48149 Muenster, Germany; (J.K.); (J.J.W.); (Y.B.); (S.L.)
| | - Stephan Ludwig
- Institute of Virology Muenster (IVM), Westfaelische Wilhelms-University Muenster, Von-Esmarch-Str. 56, D-48149 Muenster, Germany; (J.K.); (J.J.W.); (Y.B.); (S.L.)
- Cells in Motion Interfaculty Centre (CiMIC), Westfaelische Wilhelms-University Muenster, Von-Esmarch-Str. 56, D-48149 Muenster, Germany
| | - Eike R. Hrincius
- Institute of Virology Muenster (IVM), Westfaelische Wilhelms-University Muenster, Von-Esmarch-Str. 56, D-48149 Muenster, Germany; (J.K.); (J.J.W.); (Y.B.); (S.L.)
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13
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Vanderboom PM, Mun DG, Madugundu AK, Mangalaparthi KK, Saraswat M, Garapati K, Chakraborty R, Ebihara H, Sun J, Pandey A. Proteomic Signature of Host Response to SARS-CoV-2 Infection in the Nasopharynx. Mol Cell Proteomics 2021; 20:100134. [PMID: 34400346 PMCID: PMC8363427 DOI: 10.1016/j.mcpro.2021.100134] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 07/20/2021] [Accepted: 08/09/2021] [Indexed: 12/27/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, has become a global health pandemic. COVID-19 severity ranges from an asymptomatic infection to a severe multiorgan disease. Although the inflammatory response has been implicated in the pathogenesis of COVID-19, the exact nature of dysregulation in signaling pathways has not yet been elucidated, underscoring the need for further molecular characterization of SARS-CoV-2 infection in humans. Here, we characterize the host response directly at the point of viral entry through analysis of nasopharyngeal swabs. Multiplexed high-resolution MS-based proteomic analysis of confirmed COVID-19 cases and negative controls identified 7582 proteins and revealed significant upregulation of interferon-mediated antiviral signaling in addition to multiple other proteins that are not encoded by interferon-stimulated genes or well characterized during viral infections. Downregulation of several proteasomal subunits, E3 ubiquitin ligases, and components of protein synthesis machinery was significant upon SARS-CoV-2 infection. Targeted proteomics to measure abundance levels of MX1, ISG15, STAT1, RIG-I, and CXCL10 detected proteomic signatures of interferon-mediated antiviral signaling that differentiated COVID-19-positive from COVID-19-negative cases. Phosphoproteomic analysis revealed increased phosphorylation of several proteins with known antiviral properties as well as several proteins involved in ciliary function (CEP131 and CFAP57) that have not previously been implicated in the context of coronavirus infections. In addition, decreased phosphorylation levels of AKT and PKC, which have been shown to play varying roles in different viral infections, were observed in infected individuals relative to controls. These data provide novel insights that add depth to our understanding of SARS-CoV-2 infection in the upper airway and establish a proteomic signature for this viral infection.
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Affiliation(s)
- Patrick M Vanderboom
- Department of Laboratory Medicine and Pathology, Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, USA
| | - Dong-Gi Mun
- Department of Laboratory Medicine and Pathology, Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, USA
| | - Anil K Madugundu
- Department of Laboratory Medicine and Pathology, Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, USA; Institute of Bioinformatics, International Technology Park, Bangalore, Karnataka, India; Manipal Academy of Higher Education, Manipal, Karnataka, India; Center for Molecular Medicine, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
| | - Kiran K Mangalaparthi
- Department of Laboratory Medicine and Pathology, Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, USA; Institute of Bioinformatics, International Technology Park, Bangalore, Karnataka, India; Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, Kerala, India
| | - Mayank Saraswat
- Department of Laboratory Medicine and Pathology, Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, USA; Institute of Bioinformatics, International Technology Park, Bangalore, Karnataka, India; Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kishore Garapati
- Department of Laboratory Medicine and Pathology, Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, USA; Institute of Bioinformatics, International Technology Park, Bangalore, Karnataka, India; Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Rana Chakraborty
- Division of Pediatric Infectious Diseases, Mayo Clinic, Rochester, Minnesota, USA; Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, Minnesota, USA
| | - Hideki Ebihara
- Department of Molecular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Jie Sun
- The Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA; Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA; Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Akhilesh Pandey
- Department of Laboratory Medicine and Pathology, Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, USA; Center for Molecular Medicine, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India; Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, USA.
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14
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Boergeling Y, Brunotte L, Ludwig S. Dynamic phospho-modification of viral proteins as a crucial regulatory layer of influenza A virus replication and innate immune responses. Biol Chem 2021; 402:1493-1504. [PMID: 34062629 DOI: 10.1515/hsz-2021-0241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 05/18/2021] [Indexed: 02/07/2023]
Abstract
Influenza viruses are small RNA viruses with a genome of about 13 kb. Because of this limited coding capacity, viral proteins have evolved to fulfil multiple functions in the infected cell. This implies that there must be mechanisms allowing to dynamically direct protein action to a distinct activity in a spatio-temporal manner. Furthermore, viruses exploit many cellular processes, which also have to be dynamically regulated during the viral replication cycle. Phosphorylation and dephosphorylation of proteins are fundamental for the control of many cellular responses. There is accumulating evidence that this mechanism represents a so far underestimated level of regulation in influenza virus replication. Here, we focus on the current knowledge of dynamics of phospho-modifications in influenza virus replication and show recent examples of findings underlining the crucial role of phosphorylation in viral transport processes as well as activation and counteraction of the innate immune response.
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Affiliation(s)
- Yvonne Boergeling
- Institute of Virology and Interdisciplinary Center for Clinical Research (IZKF), Medical Faculty, University of Münster, Von-Esmarch-Str. 56, D-48149Münster, Germany
| | - Linda Brunotte
- Institute of Virology and Interdisciplinary Center for Clinical Research (IZKF), Medical Faculty, University of Münster, Von-Esmarch-Str. 56, D-48149Münster, Germany
| | - Stephan Ludwig
- Institute of Virology and Interdisciplinary Center for Clinical Research (IZKF), Medical Faculty, University of Münster, Von-Esmarch-Str. 56, D-48149Münster, Germany
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15
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Sun HY, Su YL, Li PH, He JY, Chen HJ, Wang G, Wang SW, Huang XH, Huang YH, Qin QW. The Roles of Epinephelus coioides miR-122 in SGIV Infection and Replication. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:294-307. [PMID: 33570690 PMCID: PMC8032594 DOI: 10.1007/s10126-021-10023-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
In mammals, mature miR-122 is 22 nucleotides long and can be involved in regulating a variety of physiological and biological pathways. In this study, the expression profile and effects of grouper Epinephelus coioides miR-122 response to Singapore grouper iridovirus (SGIV) infection were investigated. The sequences of mature microRNAs (miRNAs) from different organisms are highly conserved, and miR-122 from E. coioides exhibits high similarity to that from mammals and other fish. The expression of miR-122 was up-regulated during SGIV infection. Up-regulation of miR-122 could significantly enhance the cytopathic effects (CPE) induced by SGIV, the transcription levels of viral genes (MCP, VP19, LITAF and ICP18), and viral replication; reduce the expression of inflammatory factors (TNF-a, IL-6, and IL-8), and the activity of AP-1 and NF-κB, and miR-122 can bind the target gene p38α MAPK to regulate the SGIV-induced cell apoptosis and the protease activity of caspase-3. The results indicated that SGIV infection can up-regulate the expression of E. coioides miR-122, and up-regulation of miR-122 can affect the activation of inflammatory factors, the activity of AP-1 and NF-κB, and cell apoptosis to regulate viral replication and proliferation.
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Affiliation(s)
- Hong-Yan Sun
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - Yu-Ling Su
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - Pin-Hong Li
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - Jia-Yang He
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - He-Jia Chen
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - Gang Wang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - Shao-Wen Wang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - Xiao-Hong Huang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China
| | - You-Hua Huang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China.
| | - Qi-Wei Qin
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangdong Province, 510642, Guangzhou, People's Republic of China.
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16
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A Replication-Defective Influenza Virus Harboring H5 and H7 Hemagglutinins Provides Protection against H5N1 and H7N9 Infection in Mice. J Virol 2021; 95:JVI.02154-20. [PMID: 33177192 DOI: 10.1128/jvi.02154-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 11/05/2020] [Indexed: 12/19/2022] Open
Abstract
The recent highly pathogenic avian influenza (HPAI) H5N1 and H7N9 viruses have caused hundreds of human infections with high mortality rates. Although H5N1 and H7N9 viruses have been limited mainly to avian species, there is high potential for these viruses to acquire human-to-human transmission and initiate a pandemic. A highly safe and effective vaccine is needed to protect against a potential H5N1 or H7N9 influenza pandemic. Here, we report the generation and evaluation of two reassortant influenza viruses, PR8-H5-H7NA and PR8-H7-H5NA These viruses contain six internal segments from A/Puerto Rico/8/1934 (PR8), the HA segment from either A/Alberta/01/2014 (H5N1) [AB14 (H5N1)] or A/British Columbia/01/2015 (H7N9) [BC15 (H7N9)], and a chimeric NA segment with either the BC15 (H7N9) HA gene or the AB14 (H5N1) HA gene flanked by the NA packaging signals of PR8. These viruses expressed both H5 and H7 HAs in infected cells, replicated to high titers when exogenous NA was added to the culture medium in vitro, and were replication defective and nonvirulent when administered intranasally in mice. Moreover, intranasal vaccination with PR8-H5-H7NA elicited robust immune responses to both H5 and H7 viruses, conferring complete protection against both AB14 (H5N1) and BC15 (H7N9) challenges in mice. Conversely, vaccination with PR8-H7-H5NA only elicited robust immune responses toward the H7 virus, which conferred complete protection against BC15 (H7N9) but not against AB14 (H5N1) in mice. Therefore, PR8-H5-H7NA has strong potential to serve as a vaccine candidate against both H5 and H7 subtypes of influenza viruses.IMPORTANCE Avian influenza H5N1 and H7N9 viruses infected humans with high mortality rates. A highly safe and effective vaccine is needed to protect against a potential pandemic. We generated and evaluated two reassortant influenza viruses, PR8-H5-H7NA and PR8-H7-H5NA, as vaccine candidates. Each virus contains one type of HA in segment 4 and the other subtype of HA in segment 6, thereby expressing both H5 and H7 subtypes of the HA molecule. The replication of viruses is dependent on the addition of exogenous NA in cell culture and is replication defective in vivo Vaccination of PR8-H5-H7NA virus confers protection to both H5N1 and H7N9 virus challenge; conversely, vaccination of PR8-H7-H5NA provides protection only to H7N9 virus challenge. Our data revealed that when engineering such a virus, the H5 or H7 HA in segment 6 affects the immunogenicity. PR8-H5-H7NA has strong potential to serve as a vaccine candidate against both H5 and H7 subtypes of influenza viruses.
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17
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Ludwig S, Hrincius ER, Boergeling Y. The Two Sides of the Same Coin-Influenza Virus and Intracellular Signal Transduction. Cold Spring Harb Perspect Med 2021; 11:cshperspect.a038513. [PMID: 31871235 PMCID: PMC7778220 DOI: 10.1101/cshperspect.a038513] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Cells respond to extracellular agents by activation of intracellular signaling pathways. Viruses can be regarded as such agents, leading to a firework of signaling inside the cell, primarily induced by pathogen-associated molecular patterns (PAMPs) that provoke safeguard mechanisms to defend from the invader. In the constant arms race between pathogen and cellular defense, viruses not only have evolved mechanisms to suppress or misuse supposedly antiviral signaling processes for their own benefit but also actively induce signaling to promote replication. This creates viral dependencies that may be exploited for novel strategies of antiviral intervention. Here, we will summarize the current knowledge of activation and function of influenza virus-induced signaling pathways with a focus on nuclear factor (NF)-κB signaling, mitogen-activated protein kinase cascades, and the phosphatidylinositol-3-kinase pathway. We will discuss the opportunities and drawbacks of targeting these signaling pathways for antiviral intervention.
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18
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Roles of the Non-Structural Proteins of Influenza A Virus. Pathogens 2020; 9:pathogens9100812. [PMID: 33023047 PMCID: PMC7600879 DOI: 10.3390/pathogens9100812] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/11/2022] Open
Abstract
Influenza A virus (IAV) is a segmented, negative single-stranded RNA virus that causes seasonal epidemics and has a potential for pandemics. Several viral proteins are not packed in the IAV viral particle and only expressed in the infected host cells. These proteins are named non-structural proteins (NSPs), including NS1, PB1-F2 and PA-X. They play a versatile role in the viral life cycle by modulating viral replication and transcription. More importantly, they also play a critical role in the evasion of the surveillance of host defense and viral pathogenicity by inducing apoptosis, perturbing innate immunity, and exacerbating inflammation. Here, we review the recent advances of these NSPs and how the new findings deepen our understanding of IAV–host interactions and viral pathogenesis.
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19
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Blanco J, Cameirao C, López MC, Muñoz-Barroso I. Phosphatidylinositol-3-kinase-Akt pathway in negative-stranded RNA virus infection: a minireview. Arch Virol 2020; 165:2165-2176. [PMID: 32740830 DOI: 10.1007/s00705-020-04740-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/17/2020] [Indexed: 12/23/2022]
Abstract
The PI3K/Akt signalling pathway is a crucial signalling cascade that regulates transcription, protein translation, cell growth, proliferation, cell survival, and metabolism. During viral infection, viruses exploit a variety of cellular pathways, including the well-known PI3K/Akt signalling pathway. Conversely, cells rely on this pathway to stimulate an antiviral response. The PI3K/Akt pathway is manipulated by a number of viruses, including DNA and RNA viruses and retroviruses. The aim of this review is to provide up-to-date information about the role of the PI3K-Akt pathway in infection with members of five different families of negative-sense ssRNA viruses. This pathway is hijacked for viral entry, regulation of endocytosis, suppression of premature apoptosis, viral protein expression, and replication. Although less common, the PI3K/Akt pathway can be downregulated as an immunomodulatory strategy or as a mechanism for inducing autophagy. Moreover, the cell activates this pathway as an antiviral strategy for interferon and cytokine production, among other strategies. Here, we present new data concerning the role of this pathway in infection with the paramyxovirus Newcastle disease virus (NDV). Our data seem to indicate that NDV uses the PI3K/Akt pathway to delay cell death and increase cell survival as a means of improving its replication. The interference of negative-sense ssRNA viruses with this essential pathway might have implications for the development of antiviral therapies.
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Affiliation(s)
- Javier Blanco
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Edificio Departamental Lab.106. Plaza Doctores de la Reina s/n, 37007, Salamanca, Spain
| | - Cristina Cameirao
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Edificio Departamental Lab.106. Plaza Doctores de la Reina s/n, 37007, Salamanca, Spain.,Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253, Bragança, Portugal
| | - María Carmen López
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Edificio Departamental Lab.106. Plaza Doctores de la Reina s/n, 37007, Salamanca, Spain
| | - Isabel Muñoz-Barroso
- Departamento de Bioquímica y Biología Molecular, Universidad de Salamanca, Edificio Departamental Lab.106. Plaza Doctores de la Reina s/n, 37007, Salamanca, Spain.
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20
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Casalino-Matsuda SM, Chen F, Gonzalez-Gonzalez FJ, Nair A, Dib S, Yemelyanov A, Gates KL, Budinger GRS, Beitel GJ, Sporn PHS. Hypercapnia Suppresses Macrophage Antiviral Activity and Increases Mortality of Influenza A Infection via Akt1. THE JOURNAL OF IMMUNOLOGY 2020; 205:489-501. [PMID: 32540997 PMCID: PMC7343622 DOI: 10.4049/jimmunol.2000085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 05/18/2020] [Indexed: 12/15/2022]
Abstract
Hypercapnia (HC), elevation of the partial pressure of CO2 in blood and tissues, is a risk factor for mortality in patients with severe acute and chronic lung diseases. We previously showed that HC inhibits multiple macrophage and neutrophil antimicrobial functions and increases the mortality of bacterial pneumonia in mice. In this study, we show that normoxic HC increases viral replication, lung injury, and mortality in mice infected with influenza A virus (IAV). Elevated CO2 increased IAV replication and inhibited antiviral gene and protein expression in macrophages in vivo and in vitro. HC potentiated IAV-induced activation of Akt, whereas specific pharmacologic inhibition or short hairpin RNA knockdown of Akt1 in alveolar macrophages blocked HC's effects on IAV growth and the macrophage antiviral response. Our findings suggest that targeting Akt1 or the downstream pathways through which elevated CO2 signals could enhance macrophage antiviral host defense and improve clinical outcomes in hypercapnic patients with advanced lung disease.
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Affiliation(s)
- S Marina Casalino-Matsuda
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611;
| | - Fei Chen
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Francisco J Gonzalez-Gonzalez
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Aisha Nair
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Sandra Dib
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Alex Yemelyanov
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Khalilah L Gates
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - G R Scott Budinger
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611.,Jesse Brown Veterans Affairs Medical Center, Chicago, IL 60612; and
| | - Greg J Beitel
- Department of Molecular Biosciences, Weinberg College of Arts and Sciences, Northwestern University, Evanston, IL 60208
| | - Peter H S Sporn
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611.,Jesse Brown Veterans Affairs Medical Center, Chicago, IL 60612; and
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21
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Sun J, Wang J, Li L, Wu Z, Chen X, Yuan J. ROS induced by spring viraemia of carp virus activate the inflammatory response via the MAPK/AP-1 and PI3K signaling pathways. FISH & SHELLFISH IMMUNOLOGY 2020; 101:216-224. [PMID: 32224280 DOI: 10.1016/j.fsi.2020.03.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/25/2020] [Accepted: 03/25/2020] [Indexed: 06/10/2023]
Abstract
Spring viraemia of carp virus (SVCV) can cause a high mortality in common carp (Cyprinus carpio), and its main pathological processes include the inflammatory response. However, the detailed mechanism is still unclear. Reactive oxygen species (ROS) have been shown to play critical roles in the immune response, including inflammation, in different models. Our previous studies have demonstrated that SVCV infection results in the accumulation of ROS, including H2O2, in epithelioma papulosum cyprini (EPC) cells. In this study, we aimed to explore the relationship between H2O2 accumulation and inflammation during SVCV infection. After EPC cells were infected with SVCV, the expression levels of the inflammatory factors tumor necrosis factor (TNF)-α, cyclooxygenase (COX)-2, and interleukin (IL)-8 were up-regulated, while the expression of the anti-inflammatory factor interleukin (IL)-10 was down-regulated, compared with that in mock-infected EPC cells. The antioxidant N-acetyl-l-cysteine (NAC) could dampen the increased TNF-ɑ and COX-2 expression induced by SVCV and H2O2, suggesting a relationship between ROS accumulation and inflammation during SVCV infection. Dual luciferase reporter assays demonstrated that SVCV could not activate the NF-κB pathway. In addition, inhibition of NF-κB by pyrrolidine dithiocarbamate (PDTC) treatment had no effect on the expression of inflammatory factors. Furthermore, inhibition of the ERK, JNK, and p38MAPK signaling pathways by U0126, SP600125, and SB203580, respectively, reduced the expression of TNF-ɑ, COX-2, and IL-8, indicating that these three signaling pathways were all involved in the inflammatory response after SVCV infection. In addition, the PI3K signaling pathway was involved in the expression of the chemokine IL-8 in the SVCV-induced inflammatory response. We also showed that inhibition of the MAPK or PI3K signaling pathway facilitated the expression of SVCV-G as well as increased the SVCV viral titer. Altogether these results reveal the mechanism of the SVCV-mediated inflammatory response. Thus, targeting these signaling pathways may provide novel treatment strategies for SVCV-mediated diseases.
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Affiliation(s)
- Jie Sun
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Jingwen Wang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Lijuan Li
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China; Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, 430070, People's Republic of China
| | - Zhixin Wu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China; Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, 430070, People's Republic of China
| | - Xiaoxuan Chen
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China; Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, 430070, People's Republic of China
| | - Junfa Yuan
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China; Hubei Engineering Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, 430070, People's Republic of China; Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Wuhan, 430070, People's Republic of China.
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22
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Activation of the PI3K-AKT Pathway by Old World Alphaviruses. Cells 2020; 9:cells9040970. [PMID: 32326388 PMCID: PMC7226951 DOI: 10.3390/cells9040970] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 12/11/2022] Open
Abstract
Alphaviruses can infect a broad range of vertebrate hosts, including birds, horses, primates, and humans, in which infection can lead to rash, fever, encephalitis, and arthralgia or arthritis. They are most often transmitted by mosquitoes in which they establish persistent, asymptomatic infections. Currently, there are no vaccines or antiviral therapies for any alphavirus. Several Old World alphaviruses, including Semliki Forest virus, Ross River virus and chikungunya virus, activate or hyperactivate the phosphatidylinositol-3-kinase (PI3K)-AKT pathway in vertebrate cells, potentially influencing many cellular processes, including survival, proliferation, metabolism and autophagy. Inhibition of PI3K or AKT inhibits replication of several alphaviruses either in vitro or in vivo, indicating the importance for viral replication. In this review, we discuss what is known about the mechanism(s) of activation of the pathway during infection and describe those effects of PI3K-AKT activation which could be of advantage to the alphaviruses. Such knowledge may be useful for the identification and development of therapies.
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23
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Cho YB, Hong S, Kang KW, Kang JH, Lee SM, Seo YJ. Selective and ATP-competitive kinesin KIF18A inhibitor suppresses the replication of influenza A virus. J Cell Mol Med 2020; 24:5463-5475. [PMID: 32253833 PMCID: PMC7214149 DOI: 10.1111/jcmm.15200] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 02/13/2020] [Accepted: 03/06/2020] [Indexed: 12/22/2022] Open
Abstract
The influenza virus is one of the major public health threats. However, the development of efficient vaccines and therapeutic drugs to combat this virus is greatly limited by its frequent genetic mutations. Because of this, targeting the host factors required for influenza virus replication may be a more effective strategy for inhibiting a broader spectrum of variants. Here, we demonstrated that inhibition of a motor protein kinesin family member 18A (KIF18A) suppresses the replication of the influenza A virus (IAV). The expression of KIF18A in host cells was increased following IAV infection. Intriguingly, treatment with the selective and ATP‐competitive mitotic kinesin KIF18A inhibitor BTB‐1 substantially decreased the expression of viral RNAs and proteins, and the production of infectious viral particles, while overexpression of KIF18A enhanced the replication of IAV. Importantly, BTB‐1 treatment attenuated the activation of AKT, p38 MAPK, SAPK and Ran‐binding protein 3 (RanBP3), which led to the prevention of the nuclear export of viral ribonucleoprotein complexes. Notably, administration of BTB‐1 greatly improved the viability of IAV‐infected mice. Collectively, our results unveiled a beneficial role of KIF18A in IAV replication, and thus, KIF18A could be a potential therapeutic target for the control of IAV infection.
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Affiliation(s)
- Yong-Bin Cho
- Department of Life Science, Chung-Ang University, Seoul, South Korea
| | - Sungguan Hong
- Department of Chemistry, Chung-Ang University, Seoul, South Korea
| | - Kyung-Won Kang
- Division of Biotechnology, College of Environmental and Bioresources, Jeonbuk National University, Iksan, South Korea
| | - Ji-Hun Kang
- Department of Life Science, Chung-Ang University, Seoul, South Korea
| | - Sang-Myeong Lee
- Division of Biotechnology, College of Environmental and Bioresources, Jeonbuk National University, Iksan, South Korea
| | - Young-Jin Seo
- Department of Life Science, Chung-Ang University, Seoul, South Korea
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24
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Molecular Basis of the Ternary Interaction between NS1 of the 1918 Influenza A Virus, PI3K, and CRK. Viruses 2020; 12:v12030338. [PMID: 32244879 PMCID: PMC7150778 DOI: 10.3390/v12030338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 01/10/2023] Open
Abstract
The 1918 influenza A virus (IAV) caused the worst flu pandemic in human history. Non-structural protein 1 (NS1) is an important virulence factor of the 1918 IAV and antagonizes host antiviral immune responses. NS1 increases virulence by activating phosphoinositide 3-kinase (PI3K) via binding to the p85β subunit of PI3K. Intriguingly, unlike the NS1 of other human IAV strains, 1918 NS1 hijacks another host protein, CRK, to form a ternary complex with p85β, resulting in hyperactivation of PI3K. However, the molecular basis of the ternary interaction between 1918 NS1, CRK, and PI3K remains elusive. Here, we report the structural and thermodynamic bases of the ternary interaction. We find that the C-terminal tail (CTT) of 1918 NS1 remains highly flexible in the complex with p85β. Thus, the CTT of 1918 NS1 in the complex with PI3K can efficiently hijack CRK. Notably, our study indicates that 1918 NS1 enhances its affinity to p85β in the presence of CRK, which might result in enhanced activation of PI3K. Our results provide structural insight into how 1918 NS1 hijacks two host proteins simultaneously.
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25
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Xie L, Xie Z, Wang S, Deng X, Xie Z. Study of the activation of the PI3K/Akt pathway by the motif of σA and σNS proteins of avian reovirus. Innate Immun 2019; 26:312-318. [PMID: 31779497 PMCID: PMC7251792 DOI: 10.1177/1753425919890648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The present study was conducted to determine whether avian reovirus (ARV)
activates the phosphatidylinositol 3-kinase-dependent Akt (PI3K/Akt) pathway
according to the PXXP or YXXXM motifs of σA and σNS proteins. Gene splicing by
overlap extension PCR was used to change the PXXP or YXXXM motifs of the σA and
σNS genes. Plasmid constructs that contain mutant σA and σNS genes were
generated and transfected into Vero cells, and the expression levels of the
corresponding genes were quantified according to immunofluorescence and Western
blot analyses. The Akt phosphorylation (P-Akt) profile of the transfected Vero
cells was examined by flow cytometry and Western blot. The results showed that
the σA and σNS genes were expressed in the Vero cells, and P-Akt expression in
the σA mutant groups (amino acids 110–114 and 114–117) was markedly decreased.
The results indicated that the σA protein of ARV activates the PI3K/Akt pathway
via the PXXP motif. The results of this study reveal the mechanisms by which ARV
manipulates the cellular signal transduction pathways, which may provide new
ideas for novel drug targets.
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Affiliation(s)
- Liji Xie
- Department of Biotechnology, Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, PR China
| | - Zhixun Xie
- Department of Biotechnology, Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, PR China
| | - Sheng Wang
- Department of Biotechnology, Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, PR China
| | - Xianwen Deng
- Department of Biotechnology, Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, PR China
| | - Zhiqin Xie
- Department of Biotechnology, Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, PR China
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26
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New therapeutic targets for the prevention of infectious acute exacerbations of COPD: role of epithelial adhesion molecules and inflammatory pathways. Clin Sci (Lond) 2019; 133:1663-1703. [PMID: 31346069 DOI: 10.1042/cs20181009] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 12/15/2022]
Abstract
Chronic respiratory diseases are among the leading causes of mortality worldwide, with the major contributor, chronic obstructive pulmonary disease (COPD) accounting for approximately 3 million deaths annually. Frequent acute exacerbations (AEs) of COPD (AECOPD) drive clinical and functional decline in COPD and are associated with accelerated loss of lung function, increased mortality, decreased health-related quality of life and significant economic costs. Infections with a small subgroup of pathogens precipitate the majority of AEs and consequently constitute a significant comorbidity in COPD. However, current pharmacological interventions are ineffective in preventing infectious exacerbations and their treatment is compromised by the rapid development of antibiotic resistance. Thus, alternative preventative therapies need to be considered. Pathogen adherence to the pulmonary epithelium through host receptors is the prerequisite step for invasion and subsequent infection of surrounding structures. Thus, disruption of bacterial-host cell interactions with receptor antagonists or modulation of the ensuing inflammatory profile present attractive avenues for therapeutic development. This review explores key mediators of pathogen-host interactions that may offer new therapeutic targets with the potential to prevent viral/bacterial-mediated AECOPD. There are several conceptual and methodological hurdles hampering the development of new therapies that require further research and resolution.
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27
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Long GS, Hussen M, Dench J, Aris-Brosou S. Identifying genetic determinants of complex phenotypes from whole genome sequence data. BMC Genomics 2019; 20:470. [PMID: 31182025 PMCID: PMC6558885 DOI: 10.1186/s12864-019-5820-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/21/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND A critical goal in biology is to relate the phenotype to the genotype, that is, to find the genetic determinants of various traits. However, while simple monofactorial determinants are relatively easy to identify, the underpinnings of complex phenotypes are harder to predict. While traditional approaches rely on genome-wide association studies based on Single Nucleotide Polymorphism data, the ability of machine learning algorithms to find these determinants in whole proteome data is still not well known. RESULTS To better understand the applicability of machine learning in this case, we implemented two such algorithms, adaptive boosting (AB) and repeated random forest (RRF), and developed a chunking layer that facilitates the analysis of whole proteome data. We first assessed the performance of these algorithms and tuned them on an influenza data set, for which the determinants of three complex phenotypes (infectivity, transmissibility, and pathogenicity) are known based on experimental evidence. This allowed us to show that chunking improves runtimes by an order of magnitude. Based on simulations, we showed that chunking also increases sensitivity of the predictions, reaching 100% with as few as 20 sequences in a small proteome as in the influenza case (5k sites), but may require at least 30 sequences to reach 90% on larger alignments (500k sites). While RRF has less specificity than random forest, it was never <50%, and RRF sensitivity was significantly higher at smaller chunk sizes. We then used these algorithms to predict the determinants of three types of drug resistance (to Ciprofloxacin, Ceftazidime, and Gentamicin) in a bacterium, Pseudomonas aeruginosa. While both algorithms performed well in the case of the influenza data, results were more nuanced in the bacterial case, with RRF making more sensible predictions, with smaller errors rates, than AB. CONCLUSIONS Altogether, we demonstrated that ML algorithms can be used to identify genetic determinants in small proteomes (viruses), even when trained on small numbers of individuals. We further showed that our RRF algorithm may deserve more scrutiny, which should be facilitated by the decreasing costs of both sequencing and phenotyping of large cohorts of individuals.
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Affiliation(s)
- George S Long
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Mohammed Hussen
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Jonathan Dench
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Stéphane Aris-Brosou
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada. .,Department of Mathematics and Statistics, University of Ottawa, Ottawa, Ontario, Canada.
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28
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The NS1 Protein of Influenza A Virus Participates in Necroptosis by Interacting with MLKL and Increasing Its Oligomerization and Membrane Translocation. J Virol 2019; 93:JVI.01835-18. [PMID: 30355688 DOI: 10.1128/jvi.01835-18] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 10/16/2018] [Indexed: 12/28/2022] Open
Abstract
Elimination of infected cells by programmed cell death is a well-recognized host defense mechanism to control the spread of infection. In addition to apoptosis, necroptosis is also one of the mechanisms of cell death that can be activated by viral infection. Activation of necroptosis leads to the phosphorylation of mixed-lineage kinase domain-like protein (MLKL) by receptor-interacting protein kinase 3 (RIPK3) and results in MLKL oligomerization and membrane translocation, leading to membrane disruption and a loss of cellular ion homeostasis. It has recently been reported that influenza A virus (IAV) infection induces necroptosis. However, the underlying mechanism of the IAV-mediated necroptosis process, particularly the roles of IAV proteins in necroptosis, remains unexplored. Here, we report that IAV infection induces necroptosis in macrophages and epithelial cells. We demonstrate that the NS1 protein of IAV interacts with MLKL. Coiled-coil domain 2 of MLKL has a predominant role in mediating the MLKL interaction with NS1. The interaction of NS1 with MLKL increases MLKL oligomerization and membrane translocation. Moreover, the MLKL-NS1 interaction enhances MLKL-mediated NLRP3 inflammasome activation, leading to increased interleukin-1β (IL-1β) processing and secretion.IMPORTANCE Necroptosis is a programmed cell death that is inflammatory in nature owing to the release of danger-associated molecular patterns from the ruptured cell membrane. However, necroptosis also constitutes an important arm of host immune responses. Thus, a balanced inflammatory response determines the disease outcome. We report that the NS1 protein of IAV participates in necroptosis by interacting with MLKL, resulting in increased MLKL oligomerization and membrane translocation. These results reveal a novel function of the NS1 protein and the mechanism by which IAV induces necroptosis. Moreover, we show that this interaction enhances NLRP3 inflammasome activation and IL-1β processing and secretion. This information may contribute to a better understanding of the role of necroptosis in IAV-induced inflammation.
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29
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Li H, Zhu J, He M, Luo Q, Liu F, Chen R. Marek's Disease Virus Activates the PI3K/Akt Pathway Through Interaction of Its Protein Meq With the P85 Subunit of PI3K to Promote Viral Replication. Front Microbiol 2018; 9:2547. [PMID: 30405592 PMCID: PMC6206265 DOI: 10.3389/fmicb.2018.02547] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 10/05/2018] [Indexed: 11/25/2022] Open
Abstract
It is known that viruses can active the phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway in host cells to support cell survival and viral replication; however, the role of PI3K/Akt signaling in the pathogenic mechanisms induced by Marek’s disease virus (MDV) which causes a neoplastic Marek’s disease in poultry, remains unknown. In this study, we showed that MDV activated the PI3K/Akt pathway in chicken embryo fibroblasts (CEFs) at the early phase of infection, whereas treatment with a PI3K inhibitor LY294002 prior to MDV infection decreased viral replication and DNA synthesis. Flow cytometry analysis showed that inhibition of the PI3K/Akt pathway could significantly increase apoptosis in MDV-infected host cells, indicating that activation of PI3K/Akt signaling could facilitate viral replication through support of cell survival during infection. Evaluation of the underlying molecular mechanism by co-immunoprecipitation and laser confocal microscopy revealed that a viral protein Meq interacted with both p85α and p85β regulatory subunits of PI3K and could induce PI3K/Akt signaling in Meq-overexpressing chicken fibroblasts. Our results showed, for the first time, that MDV activated PI3K/Akt signaling in host cells through interaction of its Meq protein with the regulatory p85 subunit of PI3K to delay cell apoptosis and promote viral replication. This study provides clues for further studies of the molecular mechanisms underlying MDV infection and pathogenicity for the host.
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Affiliation(s)
- Huimin Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jiaojiao Zhu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Minyi He
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Qiong Luo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Fan Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Ruiai Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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Zhang J, Ruan T, Sheng T, Wang J, Sun J, Wang J, Prinz RA, Peng D, Liu X, Xu X. Role of c-Jun terminal kinase (JNK) activation in influenza A virus-induced autophagy and replication. Virology 2018; 526:1-12. [PMID: 30316042 DOI: 10.1016/j.virol.2018.09.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/25/2018] [Accepted: 09/25/2018] [Indexed: 01/12/2023]
Abstract
The non-structural protein 1 (NS1) of different influenza A virus (IAV) strains can differentially regulate the activity of c-Jun terminal kinase (JNK) and PI-3 kinase (PI3K). Whether varying JNK and PI3K activation impacts autophagy and IAV replication differently remains uncertain. Here we report that H5N1 (A/mallard/Huadong/S/2005) influenza A virus induced functional autophagy, as evidenced by increased LC3 lipidation and decreased p62 levels, and the presence of autolysosomes in chicken fibroblast cells. H9N2 (A/chicken/Shanghai/F/98) virus weakly induced autophagy, whereas H1N1 virus (A/PR/8/34, PR8) blocked autophagic flux. H5N1 virus activated JNK but inhibited the PI-3 kinase pathway. In contrast, N9N2 virus infection led to modest JNK activation and strong PI-3 kinase activation; whereas H1N1 virus activated the PI-3 kinase pathway but did not activate JNK. SP600125, a JNK inhibitor, inhibited H5N1 virus-induced autophagy and virus replication in a DF-1 chicken fibroblast cell line. Our study uncovered a previously unrecognized role of JNK in IAV replication and autophagy.
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Affiliation(s)
- Jingting Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China
| | - Tao Ruan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China
| | - Tianyu Sheng
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China
| | - Jiongjiong Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China
| | - Jing Sun
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China
| | - Jin Wang
- Center for Immunological Research, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Richard A Prinz
- Department of Surgery, NorthShore University Health System, Evanston IL60201, USA
| | - Daxin Peng
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China
| | - Xiulong Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China; Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou 225009, Jiangsu Province, PR China.
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Chiba S, Hill-Batorski L, Neumann G, Kawaoka Y. The Cellular DExD/H-Box RNA Helicase UAP56 Co-localizes With the Influenza A Virus NS1 Protein. Front Microbiol 2018; 9:2192. [PMID: 30258431 PMCID: PMC6144874 DOI: 10.3389/fmicb.2018.02192] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 08/27/2018] [Indexed: 11/13/2022] Open
Abstract
UAP56, a member of the DExD/H-box RNA helicase family, is essential for pre-mRNA splicing and mRNA export in eukaryotic cells. In influenza A virus-infected cells, UAP56 mediates viral mRNA nuclear export, facilitates viral ribonucleoprotein complex formation through direct interaction with the viral nucleoprotein, and may indirectly affect antiviral host responses by binding to and/or facilitating the activation of the antiviral host factors MxA and PKR. Here, we demonstrate that UAP56 also co-localizes with the influenza A viral NS1 protein, which counteracts host cell innate immune responses stimulated by virus infection. The UAP56-NS1 association relies on the RNA-binding residues R38 and K41 in NS1 and may be mediated by single-stranded RNA. UAP56 association with NS1 does not affect the NS1-mediated downregulation of cellular innate immune pathways in reporter gene assays, leaving in question the exact biological role and relevance of the UAP56-NS1 association.
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Affiliation(s)
- Shiho Chiba
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, United States
| | - Lindsay Hill-Batorski
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, United States
| | - Gabriele Neumann
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, United States
| | - Yoshihiro Kawaoka
- Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, United States
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
- International Research Center for Infectious Diseases, Institute of Medical Science, University of Tokyo, Tokyo, Japan
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Pan Y, Li P, Jia R, Wang M, Yin Z, Cheng A. Regulation of Apoptosis During Porcine Circovirus Type 2 Infection. Front Microbiol 2018; 9:2086. [PMID: 30233552 PMCID: PMC6131304 DOI: 10.3389/fmicb.2018.02086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 08/15/2018] [Indexed: 12/19/2022] Open
Abstract
Apoptosis, an indispensable innate immune mechanism, regulates cellular homeostasis by removing unnecessary or damaged cells. It contains three signaling pathways: the mitochondria-mediated pathway, the death receptor pathway and the endoplasmic reticulum pathway. The importance of apoptosis in host defenses is stressed by the observation that multiple viruses have evolved various strategies to inhibit apoptosis, thereby blunting the host immune responses and promoting viral propagation. Porcine Circovirus type 2 (PCV2) utilizes various strategies to induce or inhibit programmed cell death. In this article, we review the latest research progress of the apoptosis mechanisms during infection with PCV2, including several proteins of PCV2 regulate apoptosis via interacting with host proteins and multiple signaling pathways involved in PCV2-induced apoptosis, which provides scientific basis for the pathogenesis and prevention of PCV2.
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Affiliation(s)
- Yuhong Pan
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Pengfei Li
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Renyong Jia
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Mingshu Wang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Zhongqiong Yin
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Anchun Cheng
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
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Dai X, Li N, Roller RJ. Peroxiredoxin 1 protein interacts with influenza virus ribonucleoproteins and is required for efficient virus replication. Vaccine 2018; 36:4540-4547. [PMID: 29921490 DOI: 10.1016/j.vaccine.2018.05.125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 05/29/2018] [Accepted: 05/31/2018] [Indexed: 12/21/2022]
Abstract
Cellular proteins that support influenza virus infection represent potential therapeutic targets. Cytoplasmic egress intermediates of influenza A/WSN/33 were isolated and shown to be associated with the cellular enzymes peroxiredoxins-1 (Prdx-1) during glycerol gradient fractionation. Prdx-1 also co-localizes with influenza NP at the cell periphery late in infection. Knock-down or knockout of Prdx-1 expression inhibit influenza A replication. Inhibition of replication is not correlated with defects in initiation of infection or mRNA expression, but is correlated with inhibition of accumulation of viral proteins and vRNAs.
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Affiliation(s)
- Xiaoxia Dai
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, PR China.
| | - Na Li
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, PR China
| | - Richard J Roller
- Department of Microbiology, University of Iowa, Iowa City, IA 52242, United States
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Ranadheera C, Coombs KM, Kobasa D. Comprehending a Killer: The Akt/mTOR Signaling Pathways Are Temporally High-Jacked by the Highly Pathogenic 1918 Influenza Virus. EBioMedicine 2018; 32:142-163. [PMID: 29866590 PMCID: PMC6021456 DOI: 10.1016/j.ebiom.2018.05.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 05/08/2018] [Accepted: 05/21/2018] [Indexed: 02/06/2023] Open
Abstract
Previous transcriptomic analyses suggested that the 1918 influenza A virus (IAV1918), one of the most devastating pandemic viruses of the 20th century, induces a dysfunctional cytokine storm and affects other innate immune response patterns. Because all viruses are obligate parasites that require host cells for replication, we globally assessed how IAV1918 induces host protein dysregulation. We performed quantitative mass spectrometry of IAV1918-infected cells to measure host protein dysregulation. Selected proteins were validated by immunoblotting and phosphorylation levels of members of the PI3K/AKT/mTOR pathway were assessed. Compared to mock-infected controls, >170 proteins in the IAV1918-infected cells were dysregulated. Proteins mapped to amino sugar metabolism, purine metabolism, steroid biosynthesis, transmembrane receptors, phosphatases and transcription regulation. Immunoblotting demonstrated that IAV1918 induced a slight up-regulation of the lamin B receptor whereas all other tested virus strains induced a significant down-regulation. IAV1918 also strongly induced Rab5b expression whereas all other tested viruses induced minor up-regulation or down-regulation. IAV1918 showed early reduced phosphorylation of PI3K/AKT/mTOR pathway members and was especially sensitive to rapamycin. These results suggest the 1918 strain requires mTORC1 activity in early replication events, and may explain the unique pathogenicity of this virus. Proteomic analyses of influenza 1918 virus-infected cells identified >170 dysregulated host proteins. Dysregulated proteins mapped to numerous important cellular pathways. 1918 virus infection showed prominent early reduced phosphorylation of PI3K/Akt/mTOR.
The 1918 influenza pandemic was one of the most devastating infectious disease events of the 20th century, resulting in 20–100 million deaths. Gene-based assays showed severe dysregulation of the host's cytokine responses, but little was known about global protein responses to virus infection. This work identifies unique and temporal alterations in phosphorylation of the PI3K/AKT/mTOR signaling pathway, which is important in determining cell death. This work paves the way for further research on how this pathway influences host mechanisms responsible for aiding virus replication and in determining levels and severity of influenza virus-induced patho
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Affiliation(s)
- Charlene Ranadheera
- Department of Medical Microbiology, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0J6, Canada; Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba R3E 3R2, Canada
| | - Kevin M Coombs
- Department of Medical Microbiology, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0J6, Canada; Manitoba Centre for Proteomics & Systems Biology, Room 799, 715 McDermot Avenue, Winnipeg, Manitoba R3E 3P4, Canada; Manitoba Institute of Child Health, John Buhler Research Centre, Room 513, 715 McDermot Avenue, Winnipeg, Manitoba R3E 3P4, Canada.
| | - Darwyn Kobasa
- Department of Medical Microbiology, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0J6, Canada; Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba R3E 3R2, Canada.
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35
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Wang X, Qi X, Yang B, Chen S, Wang J. Autophagy Benefits the Replication of Egg Drop Syndrome Virus in Duck Embryo Fibroblasts. Front Microbiol 2018; 9:1091. [PMID: 29896171 PMCID: PMC5986908 DOI: 10.3389/fmicb.2018.01091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 05/07/2018] [Indexed: 12/19/2022] Open
Abstract
Egg drop syndrome virus (EDSV) is an economically important pathogen with a broad host range, and it causes disease that leads to markedly decreased egg production. Although EDSV is known to induce apoptosis in duck embryo fibroblasts (DEFs), the interaction between EDSV and its host needs to be further researched. Here, we provide the first evidence that EDSV infection triggers autophagy in DEFs through increases in autophagosome-like double-membrane vesicles, the conversion of LC3-I to LC3-II, and LC3 colocalization with viral hexon proteins. Conversely, P62/SQSTM1 degradation, LC3-II turnover, and colocalization of LAMP and LC3 confirmed that EDSV infection triggers complete autophagy. Furthermore, we demonstrated that inhibition of autophagy by chloroquine (CQ) and 3-methyladenine (3MA) or RNA interference targeting ATG-7 decreased the yield of EDSV progeny. In contrast, induction of autophagy by rapamycin increased the EDSV progeny yield. In addition, we preliminarily demonstrated that the class I phosphoinositide 3-kinase (PI3K)/Akt/mTOR pathway contributes to autophagic induction following EDSV infection. Altogether, these finding lead us to conclude that EDSV infection induces autophagy, which benefits its own replication in host cells. These findings provide novel insights into EDSV-host interactions.
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Affiliation(s)
- Xueping Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xuefeng Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Bo Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Shuying Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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The Enigmatic Alphavirus Non-Structural Protein 3 (nsP3) Revealing Its Secrets at Last. Viruses 2018; 10:v10030105. [PMID: 29495654 PMCID: PMC5869498 DOI: 10.3390/v10030105] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 02/20/2018] [Accepted: 02/22/2018] [Indexed: 12/21/2022] Open
Abstract
Alphaviruses encode 4 non-structural proteins (nsPs), most of which have well-understood functions in capping and membrane association (nsP1), polyprotein processing and RNA helicase activity (nsP2) and as RNA-dependent RNA polymerase (nsP4). The function of nsP3 has been more difficult to pin down and it has long been referred to as the more enigmatic of the nsPs. The protein comprises three domains, an N-terminal macro domain, a central zinc-binding domain and a C-terminal hypervariable domain (HVD). In this article, we review old and new literature about the functions of the three domains. Much progress in recent years has contributed to a picture of nsP3, particularly through its HVD as a hub for interactions with host cell molecules, with multiple effects on the biology of the host cell at early points in infection. These and many future discoveries will provide targets for anti-viral therapies as well as strategies for modification of vectors for vaccine and oncolytic interventions.
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Pizzorno A, Dubois J, Machado D, Cartet G, Traversier A, Julien T, Lina B, Bourdon JC, Rosa-Calatrava M, Terrier O. Influenza A viruses alter the stability and antiviral contribution of host E3-ubiquitin ligase Mdm2 during the time-course of infection. Sci Rep 2018; 8:3746. [PMID: 29487367 PMCID: PMC5829072 DOI: 10.1038/s41598-018-22139-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/19/2018] [Indexed: 11/09/2022] Open
Abstract
The interplay between influenza A viruses (IAV) and the p53 pathway has been reported in several studies, highlighting the antiviral contribution of p53. Here, we investigated the impact of IAV on the E3-ubiquitin ligase Mdm2, a major regulator of p53, and observed that IAV targets Mdm2, notably via its non-structural protein (NS1), therefore altering Mdm2 stability, p53/Mdm2 interaction and regulatory loop during the time-course of infection. This study also highlights a new antiviral facet of Mdm2 possibly increasing the list of its many p53-independent functions. Altogether, our work contributes to better understand the mechanisms underlining the complex interactions between IAV and the p53 pathway, for which both NS1 and Mdm2 arise as key players.
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Affiliation(s)
- Andrés Pizzorno
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
| | - Julia Dubois
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
| | - Daniela Machado
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
- Laboratoire des Pathogènes Emergents, Fondation Mérieux. CIRI, UCBL1- INSERM U1111, ENS Lyon, CNRS UMR5308, Lyon, France
| | - Gaëlle Cartet
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
| | - Aurelien Traversier
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
| | - Thomas Julien
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
| | - Bruno Lina
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
- Laboratoire de Virologie, Centre National de Référence des virus Influenza, Institut des Agents Infectieux, Groupement Hospitalier Nord, Hospices Civils de Lyon, Lyon, France
| | - Jean-Christophe Bourdon
- Division of Cancer Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Manuel Rosa-Calatrava
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France
| | - Olivier Terrier
- Virologie et Pathologie Humaine-VirPath team, Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, ENS Lyon, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, CNRS UMR5308, France.
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Hu J, Hu Z, Wang X, Gu M, Gao Z, Liang Y, Ma C, Liu X, Hu S, Chen S, Peng D, Jiao X, Liu X. Deep sequencing of the mouse lung transcriptome reveals distinct long non-coding RNAs expression associated with the high virulence of H5N1 avian influenza virus in mice. Virulence 2018; 9:1092-1111. [PMID: 30052469 PMCID: PMC6086314 DOI: 10.1080/21505594.2018.1475795] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 05/08/2018] [Indexed: 01/22/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) play multiple key regulatory roles in various biological processes. However, their function in influenza A virus (IAV) pathogenicity remains largely unexplored. Here, using next generation sequencing, we systemically compared the whole-transcriptome response of the mouse lung infected with either the highly pathogenic (A/Chicken/Jiangsu/k0402/2010, CK10) or the nonpathogenic (A/Goose/Jiangsu/k0403/2010, GS10) H5N1 virus. A total of 126 significantly differentially expressed (SDE) lncRNAs from three replicates were identified to be associated with the high virulence of CK10, whereas 94 SDE lncRNAs were related with GS10. Functional category analysis suggested that the SDE lncRNAs-coexpressed mRNAs regulated by CK10 were highly related with aberrant and uncontrolled inflammatory responses. Further canonical pathway analysis also confirmed that these targets were highly enriched for inflammatory-related pathways. Moreover, 9 lncRNAs and 17 lncRNAs-coexpressed mRNAs associated with a large number of targeted genes were successfully verified by qRT-PCR. One targeted lncRNA (NONMMUT011061) that was markedly activated and correlated with a great number of mRNAs was selected for further in-depth analysis, including predication of transcription factors, potential interacting proteins, genomic location, coding ability and construction of the secondary structure. More importantly, NONMMUT011061 was also distinctively stimulated during the highly pathogenic H5N8 virus infection in mice, suggesting a potential universal role of NONMMUT011061 in the pathogenesis of different H5 IAV. Altogether, these results provide a subset of lncRNAs that might play important roles in the pathogenesis of influenza virus and add the lncRNAs to the vast repertoire of host factors utilized by IAV for infection and persistence.
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Affiliation(s)
- Jiao Hu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Zenglei Hu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Xiaoquan Wang
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Min Gu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Zhao Gao
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Yanyan Liang
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Chunxi Ma
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Xiaowen Liu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Sujuan Chen
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Daxing Peng
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Xinan Jiao
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agri-food Safety and Quality, Ministry of Agriculture of China (26116120), Yangzhou University, Yangzhou, China
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Mazzon M, Castro C, Thaa B, Liu L, Mutso M, Liu X, Mahalingam S, Griffin JL, Marsh M, McInerney GM. Alphavirus-induced hyperactivation of PI3K/AKT directs pro-viral metabolic changes. PLoS Pathog 2018; 14:e1006835. [PMID: 29377936 PMCID: PMC5805360 DOI: 10.1371/journal.ppat.1006835] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 02/08/2018] [Accepted: 12/20/2017] [Indexed: 11/18/2022] Open
Abstract
Virus reprogramming of cellular metabolism is recognised as a critical determinant for viral growth. While most viruses appear to activate central energy metabolism, different viruses have been shown to rely on alternative mechanisms of metabolic activation. Whether related viruses exploit conserved mechanisms and induce similar metabolic changes is currently unclear. In this work we investigate how two alphaviruses, Semliki Forest virus and Ross River virus, reprogram host metabolism and define the molecular mechanisms responsible. We demonstrate that in both cases the presence of a YXXM motif in the viral protein nsP3 is necessary for binding to the PI3K regulatory subunit p85 and for activating AKT. This leads to an increase in glucose metabolism towards the synthesis of fatty acids, although additional mechanisms of metabolic activation appear to be involved in Ross River virus infection. Importantly, a Ross River virus mutant that fails to activate AKT has an attenuated phenotype in vivo, suggesting that viral activation of PI3K/AKT contributes to virulence and disease.
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Affiliation(s)
- Michela Mazzon
- MRC Laboratory for Molecular Cell Biology, University College London, London, United Kingdom
| | - Cecilia Castro
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
- Cambridge Systems Biology Centre, University of Cambridge, Cambridge, United Kingdom
| | - Bastian Thaa
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, SE, Sweden
- Institute of Virology, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | - Lifeng Liu
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, SE, Sweden
| | - Margit Mutso
- Institute of Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Xiang Liu
- Institute of Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Suresh Mahalingam
- Institute of Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Julian L. Griffin
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
- Cambridge Systems Biology Centre, University of Cambridge, Cambridge, United Kingdom
| | - Mark Marsh
- MRC Laboratory for Molecular Cell Biology, University College London, London, United Kingdom
| | - Gerald M. McInerney
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, SE, Sweden
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Structure-Guided Functional Annotation of the Influenza A Virus NS1 Protein Reveals Dynamic Evolution of the p85β-Binding Site during Circulation in Humans. J Virol 2017; 91:JVI.01081-17. [PMID: 28814525 PMCID: PMC5640874 DOI: 10.1128/jvi.01081-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/13/2017] [Indexed: 01/28/2023] Open
Abstract
Rational characterization of virulence and host-adaptive markers in the multifunctional influenza A virus NS1 protein is hindered by a lack of comprehensive knowledge about NS1-host protein protein interfaces. Here, we surveyed the impact of amino acid variation in NS1 at its structurally defined binding site for host p85β, a regulator of phosphoinositide 3-kinase (PI3K) signaling. Structure-guided alanine scanning of all viral residues at this interface defined 10 positions contributing to the interaction, with residues 89, 95, 98, 133, 145, and 162 being the most important. A bioinformatic study of >24,000 publicly available NS1 sequences derived from viruses infecting different hosts highlighted several prevalent amino acid variants at the p85β interface that either enhanced (I95) or weakened (N135, T145, L161, Y161, S164) p85β binding. Interestingly, analysis of viruses circulating in humans since the 1918 pandemic revealed the temporal acquisition of functionally relevant variants at this interface. I95 (which enhanced p85β binding) quickly became prevalent in the 1940s and experimentally conferred a fitness advantage to a recombinant 1930s-based H1N1 virus in human lung epithelial cells. Surprisingly, H1N1 and H3N2 viruses recently acquired T145 or N135, respectively, which diminished p85β binding but apparently not the overall fitness in the human population. Evolutionary analyses revealed covariation of the NS1-p85β binding phenotype in humans with functional changes at multiple residues in other viral proteins, suggesting an unexplored compensatory or synergistic interplay between phenotypes in vivo. Overall, our data provide a resource to understand the consequences of the NS1-p85β binding spectrum of different influenza viruses and highlight the dynamic evolution of this property in viruses circulating in humans. IMPORTANCE In humans, influenza A viruses are responsible for causing seasonal epidemics and occasional pandemics. These viruses also circulate and evolve in other animal species, creating a reservoir from which novel viruses with distinct properties can emerge. The viral nonstructural protein NS1 is an important host range determinant and virulence factor that exhibits strain-specific interactions with several host factors, although few have been characterized extensively. In the study described here, we comprehensively surveyed the impact of natural and unnatural NS1 variations on the binding of NS1 to host p85β, a subunit of phosphoinositide 3-kinase that regulates intracellular metabolism and contributes to virus replication and virulence. We define the p85β-binding site on NS1 and provide a predictive resource to assess this ability of NS1 in viruses from different hosts. Strikingly, we uncover a spectrum of p85β binding by different NS1 proteins and reveal that viruses evolving in humans have undergone dynamic changes in this NS1 function over the last century.
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Kuss-Duerkop SK, Wang J, Mena I, White K, Metreveli G, Sakthivel R, Mata MA, Muñoz-Moreno R, Chen X, Krammer F, Diamond MS, Chen ZJ, García-Sastre A, Fontoura BMA. Influenza virus differentially activates mTORC1 and mTORC2 signaling to maximize late stage replication. PLoS Pathog 2017; 13:e1006635. [PMID: 28953980 PMCID: PMC5617226 DOI: 10.1371/journal.ppat.1006635] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 09/08/2017] [Indexed: 12/12/2022] Open
Abstract
Influenza A virus usurps host signaling factors to regulate its replication. One example is mTOR, a cellular regulator of protein synthesis, growth and motility. While the role of mTORC1 in viral infection has been studied, the mechanisms that induce mTORC1 activation and the substrates regulated by mTORC1 during influenza virus infection have not been established. In addition, the role of mTORC2 during influenza virus infection remains unknown. Here we show that mTORC2 and PDPK1 differentially phosphorylate AKT upon influenza virus infection. PDPK1-mediated phoshorylation of AKT at a distinct site is required for mTORC1 activation by influenza virus. On the other hand, the viral NS1 protein promotes phosphorylation of AKT at a different site via mTORC2, which is an activity dispensable for mTORC1 stimulation but known to regulate apoptosis. Influenza virus HA protein and down-regulation of the mTORC1 inhibitor REDD1 by the virus M2 protein promote mTORC1 activity. Systematic phosphoproteomics analysis performed in cells lacking the mTORC2 component Rictor in the absence or presence of Torin, an inhibitor of both mTORC1 and mTORC2, revealed mTORC1-dependent substrates regulated during infection. Members of pathways that regulate mTORC1 or are regulated by mTORC1 were identified, including constituents of the translation machinery that once activated can promote translation. mTORC1 activation supports viral protein expression and replication. As mTORC1 activation is optimal midway through the virus life cycle, the observed effects on viral protein expression likely support the late stages of influenza virus replication when infected cells undergo significant stress. Drug-resistant influenza viruses commonly arise due to frequent genetic changes and current antiviral drugs are not highly efficient. These underscore the need for new antiviral therapies effective against influenza viruses. Understanding how influenza virus uses cellular proteins for infection can potentially identify novel targets for pharmacological intervention. Influenza virus modulates cellular pathways to promote its replication and avoid immune restriction. Here we reveal the interplay between the cellular protein mTOR, which functions in two distinct protein complexes, and influenza virus infection. mTOR complex 1 (mTORC1) is activated during influenza virus infection through a cascade of specific modifications, or phosphorylation events, and by reducing the levels of another cellular protein termed REDD1, which is an mTORC1 inhibitor. Activation of mTORC1 results in additional phosphorylation events that together promote viral protein expression and replication. On the other hand, mTOR complex 2 (mTORC2) phosphorylates AKT at a specific site during infection, which is a process mediated by the viral NS1 protein that is known to regulate viral-mediated cell death. Since these effects occur midway through the virus life cycle in the infected cell, mTORC1 and mTORC2 activation are likely important to regulate the cellular environment in order to facilitate the late stages of viral infection.
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Affiliation(s)
- Sharon K. Kuss-Duerkop
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Juan Wang
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Ignacio Mena
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Kris White
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Giorgi Metreveli
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Ramanavelan Sakthivel
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Miguel A. Mata
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Raquel Muñoz-Moreno
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Xiang Chen
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Michael S. Diamond
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Zhijian J. Chen
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Beatriz M. A. Fontoura
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- * E-mail:
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Zhao M, Wang L, Li S. Influenza A Virus-Host Protein Interactions Control Viral Pathogenesis. Int J Mol Sci 2017; 18:ijms18081673. [PMID: 28763020 PMCID: PMC5578063 DOI: 10.3390/ijms18081673] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 07/27/2017] [Accepted: 07/28/2017] [Indexed: 12/20/2022] Open
Abstract
The influenza A virus (IAV), a member of the Orthomyxoviridae family, is a highly transmissible respiratory pathogen and represents a continued threat to global health with considerable economic and social impact. IAV is a zoonotic virus that comprises a plethora of strains with different pathogenic profiles. The different outcomes of viral pathogenesis are dependent on the engagement between the virus and the host cellular protein interaction network. The interactions may facilitate virus hijacking of host molecular machinery to fulfill the viral life cycle or trigger host immune defense to eliminate the virus. In recent years, much effort has been made to discover the virus–host protein interactions and understand the underlying mechanisms. In this paper, we review the recent advances in our understanding of IAV–host interactions and how these interactions contribute to host defense and viral pathogenesis.
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Affiliation(s)
- Mengmeng Zhao
- 156 McElroy Hall, Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
| | - Lingyan Wang
- 156 McElroy Hall, Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
| | - Shitao Li
- 156 McElroy Hall, Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
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The Effector TepP Mediates Recruitment and Activation of Phosphoinositide 3-Kinase on Early Chlamydia trachomatis Vacuoles. mSphere 2017; 2:mSphere00207-17. [PMID: 28744480 PMCID: PMC5518268 DOI: 10.1128/msphere.00207-17] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 06/27/2017] [Indexed: 11/20/2022] Open
Abstract
Chlamydia trachomatis delivers multiple type 3 secreted effector proteins to host epithelial cells to manipulate cytoskeletal functions, membrane dynamics, and signaling pathways. TepP is the most abundant effector protein secreted early in infection, but its molecular function is poorly understood. In this report, we provide evidence that TepP is important for bacterial replication in cervical epithelial cells, activation of type I IFN genes, and recruitment of class I phosphoinositide 3-kinases (PI3K) and signaling adaptor protein CrkL to nascent pathogen-containing vacuoles (inclusions). We also show that TepP is a target of tyrosine phosphorylation by Src kinases but that these modifications do not appear to influence the recruitment of PI3K or CrkL. The translocation of TepP correlated with an increase in the intracellular pools of phosphoinositide-(3,4,5)-triphosphate but not the activation of the prosurvival kinase Akt, suggesting that TepP-mediated activation of PI3K is spatially restricted to early inclusions. Furthermore, we linked PI3K activity to the dampening of transcription of type I interferon (IFN)-induced genes early in infection. Overall, these findings indicate that TepP can modulate cell signaling and, potentially, membrane trafficking events by spatially restricted activation of PI3K. IMPORTANCE This article shows that Chlamydia recruits PI3K, an enzyme important for host cell survival and internal membrane functions, to the pathogens inside cells by secreting a scaffolding protein called TepP. TepP enhances Chlamydia replication and dampens the activation of immune responses.
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44
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Provost C, Hamonic G, Gagnon CA, Meurens F. Dual infections of CD163 expressing NPTr epithelial cells with influenza A virus and PRRSV. Vet Microbiol 2017; 207:143-148. [PMID: 28757015 DOI: 10.1016/j.vetmic.2017.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/14/2017] [Accepted: 06/15/2017] [Indexed: 12/27/2022]
Abstract
In the pig, respiratory co-infections involving various pathogens are far more frequent than single infections. Amongst respiratory viruses, swine influenza type A virus (swIAV) and porcine reproductive and respiratory syndrome virus (PRRSV) are frequently associated. Previously, we performed co-infections with swIAV and PRRSV in porcine alveolar macrophages (PAM) and precision cut lung slices (PCLS). With these two approaches it was practically impossible to have co-infections of the same cells as the main target cell of swIAV is the epithelial cell while the main target of PRRSV is the PAM. This constraint makes the study of interference between the two viruses difficult at the cellular level. In the current report, an epithelial cell line expressing, CD163, the main receptor of PRRSV was generated. This cell line receptive for both viruses was used to assess the interference between the two viruses. Results showed that swIAV as well as PRRSV, even if they interacted differently with the modified epithelial cells, were clearly interfering with each other regarding their replication when they infected a same cell with consequences within the cellular antiviral response. Our modified cell line, receptive to both viruses, can be used as a tool to assess interference between swIAV and PRRSV in a same cell as it probably happens in the porcine host.
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Affiliation(s)
- Chantale Provost
- Swine and Poultry Infectious Diseases Research Center (CRIPA) et Groupe de Recherche sur les Maladies Infectieuses en Production animale (GREMIP), Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, Québec, Canada
| | - Glenn Hamonic
- Vaccine and Infectious Disease Organization (VIDO)-International Vaccine Centre (InterVac) and the Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Carl A Gagnon
- Swine and Poultry Infectious Diseases Research Center (CRIPA) et Groupe de Recherche sur les Maladies Infectieuses en Production animale (GREMIP), Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, Québec, Canada
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45
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Strunk U, Ramos DG, Saffran HA, Smiley JR. Role of Herpes simplex virus 1 VP11/12 tyrosine-based binding motifs for Src family kinases, p85, Grb2 and Shc in activation of the phosphoinositide 3-kinase-Akt pathway. Virology 2016; 498:31-35. [DOI: 10.1016/j.virol.2016.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 12/25/2022]
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46
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Qi X, Zhang H, Wang Q, Wang J. The NS1 protein of avian influenza virus H9N2 induces oxidative-stress-mediated chicken oviduct epithelial cells apoptosis. J Gen Virol 2016; 97:3183-3192. [PMID: 27902334 DOI: 10.1099/jgv.0.000625] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The pathogenesis of H9N2 subtype avian influenza virus infection (AIV) in hens is often related to oviduct tissue damage. The viral non-structural NS1 protein is thought to play a key role in regulating the pathogenicity of AIV, but its exact function in this process remains elusive. In this study, the pro-apoptosis effect of H9N2 NS1 protein was examined on chicken oviduct epithelial cells (COECs) and our data indicated that NS1-induced oxidative stress was a contributing factor in apoptosis. Our data indicate that NS1 protein level was correlated with reactive oxygen species (ROS) in COECs transfected with NS1 expression plasmids. Interestingly, decreased activities of antioxidant enzymes, superoxide dismutase and catalase, were observed in NS1-transfected COECs. Treatment of COECs with antioxidants, such as pyrrolidine dithiocarbamate (PDTC) or N-acetylcysteine (NAC), significantly inhibited NS1-induced apoptosis. Moreover, although antioxidant treatment has little effect on the activation of caspase-8 in NS1-transfected cells, the activation of caspase-3/9 and Bax/Bcl-2 were significantly downregulated. Taken together, the results of our study demonstrated that expression of H9N2 NS1 alone is sufficient to trigger oxidative stress in COECs. Additionally, NS1 protein can induce cellular apoptosis via activating ROS accumulation and mitochondria-mediated apoptotic signalling in COECs.
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Affiliation(s)
- Xuefeng Qi
- Veterinary Medicine College, Northwest A&F University, Yangling 712100, PR China
| | - Huizhu Zhang
- Veterinary Medicine College, Northwest A&F University, Yangling 712100, PR China
| | - Qiuzhen Wang
- Veterinary Medicine College, Northwest A&F University, Yangling 712100, PR China
| | - Jingyu Wang
- Veterinary Medicine College, Northwest A&F University, Yangling 712100, PR China
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Kong N, Wu Y, Meng Q, Wang Z, Zuo Y, Pan X, Tong W, Zheng H, Li G, Yang S, Yu H, Zhou EM, Shan T, Tong G. Suppression of Virulent Porcine Epidemic Diarrhea Virus Proliferation by the PI3K/Akt/GSK-3α/β Pathway. PLoS One 2016; 11:e0161508. [PMID: 27560518 PMCID: PMC4999130 DOI: 10.1371/journal.pone.0161508] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 08/05/2016] [Indexed: 11/18/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) has recently caused high mortality in suckling piglets with subsequent large economic losses to the swine industry. Many intracellular signaling pathways, including the phosphatidylinositol 3-kinase (PI3K)/Akt pathway, are activated by viral infection. The PI3K/Akt pathway is an important cellular pathway that has been shown to be required for virus replication. In the present study, we found that the PEDV JS-2013 strain activated Akt in Vero cells at early (5-15 min) and late stages (8-10 h) of infection. Inhibiting PI3K, an upstream activator of Akt, enhanced PEDV replication. Inhibiting GSK-3α/β, one of the downstream effectors of PI3K/Akt pathway and regulated by Akt during PEDV infected Vero cells, also enhanced PEDV replication. Collectively, our data suggest that PI3K/Akt/GSK-3α/β signaling pathway is activated by PEDV and functions in inhibiting PEDV replication.
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Affiliation(s)
- Ning Kong
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yongguang Wu
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Qiong Meng
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Department of zoology, College of Life Science, Xinyang Normal University, Xinyang, Henan, 464000, China
| | - Zhongze Wang
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Yewen Zuo
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Xi Pan
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Wu Tong
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
| | - Hao Zheng
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
| | - Guoxin Li
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
| | - Shen Yang
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Hai Yu
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
| | - En-min Zhou
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Tongling Shan
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
- * E-mail: (GZT); (TLS)
| | - Guangzhi Tong
- Department of Swine Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China
- * E-mail: (GZT); (TLS)
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Li T, Li X, Zhu W, Wang H, Mei L, Wu S, Lin X, Han X. NF90 is a novel influenza A virus NS1-interacting protein that antagonizes the inhibitory role of NS1 on PKR phosphorylation. FEBS Lett 2016; 590:2797-810. [PMID: 27423063 DOI: 10.1002/1873-3468.12311] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/01/2016] [Accepted: 07/06/2016] [Indexed: 12/24/2022]
Abstract
NF90 is a novel host antiviral factor that regulates PKR activation and stress granule formation in influenza A virus (IAV)-infected cells, but the precise mechanisms by which it operates remain unclear. We identified NF90 as a novel interacting protein of IAV nonstructural protein 1 (NS1). The interaction was dependent on the RNA-binding properties of NS1. NS1 associated with NF90 and PKR simultaneously; however, the interaction between NF90 and PKR was restricted by NS1. Knockdown of NF90 promoted inhibition of PKR phosphorylation induced by NS1, while coexpression of NF90 impeded reduction of PKR phosphorylation and stress granule formation triggered by NS1. In summary, NF90 exerts its antiviral activity by antagonizing the inhibitory role of NS1 on PKR phosphorylation.
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Affiliation(s)
- Ting Li
- Chinese Academy of Inspection and Quarantine, Institute of Animal Quarantine, Chaoyang District, Beijing, China
| | - Xi Li
- Chinese Academy of Inspection and Quarantine, Institute of Animal Quarantine, Chaoyang District, Beijing, China
| | - WenFei Zhu
- National Institute for Viral Disease Control and Prevention, Collaboration Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention; Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - HuiYu Wang
- Chinese Academy of Inspection and Quarantine, Institute of Animal Quarantine, Chaoyang District, Beijing, China
| | - Lin Mei
- Chinese Academy of Inspection and Quarantine, Institute of Animal Quarantine, Chaoyang District, Beijing, China
| | - ShaoQiang Wu
- Chinese Academy of Inspection and Quarantine, Institute of Animal Quarantine, Chaoyang District, Beijing, China
| | - XiangMei Lin
- Chinese Academy of Inspection and Quarantine, Institute of Animal Quarantine, Chaoyang District, Beijing, China
| | - XueQing Han
- Chinese Academy of Inspection and Quarantine, Institute of Animal Quarantine, Chaoyang District, Beijing, China
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49
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Xie L, Xie Z, Huang L, Fan Q, Luo S, Huang J, Deng X, Xie Z, Zeng T, Zhang Y, Wang S. Avian reovirus σA and σNS proteins activate the phosphatidylinositol 3-kinase-dependent Akt signalling pathway. Arch Virol 2016; 161:2243-8. [PMID: 27233800 DOI: 10.1007/s00705-016-2908-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/19/2016] [Indexed: 11/26/2022]
Abstract
The present study was conducted to identify avian reovirus (ARV) proteins that can activate the phosphatidylinositol 3-kinase (PI3K)-dependent Akt pathway. Based on ARV protein amino acid sequence analysis, σA, σNS, μA, μB and μNS were identified as putative proteins capable of mediating PI3K/Akt pathway activation. The recombinant plasmids σA-pcAGEN, σNS-pcAGEN, μA-pcAGEN, μB-pcAGEN and μNS-pcAGEN were constructed and used to transfect Vero cells, and the expression levels of the corresponding genes were quantified by immunofluorescence and Western blot analysis. Phosphorylated Akt (P-Akt) levels in the transfected cells were measured by flow cytometry and Western blot analysis. The results showed that the σA, σNS, μA, μB and μNS genes were expressed in Vero cells. σA-expressing and σNS-expressing cells had higher P-Akt levels than negative control cells, pcAGEN-expressing cells and cells designed to express other proteins (i.e., μA, μB and μNS). Pre-treatment with the PI3K inhibitor LY294002 inhibited Akt phosphorylation in σA- and σNS-expressing cells. These results indicate that the σA and σNS proteins can activate the PI3K/Akt pathway.
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Affiliation(s)
- Liji Xie
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Zhixun Xie
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China.
| | - Li Huang
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Qing Fan
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Sisi Luo
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Jiaoling Huang
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Xianwen Deng
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Zhiqin Xie
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Tingting Zeng
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Yanfang Zhang
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
| | - Sheng Wang
- Department of Biotechnology, Guangxi Key Laboratory of Animal Epidemic Etiology and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, Nanning, 530001, China
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Thulasi Raman SN, Zhou Y. Networks of Host Factors that Interact with NS1 Protein of Influenza A Virus. Front Microbiol 2016; 7:654. [PMID: 27199973 PMCID: PMC4855030 DOI: 10.3389/fmicb.2016.00654] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 04/19/2016] [Indexed: 11/13/2022] Open
Abstract
Pigs are an important host of influenza A viruses due to their ability to generate reassortant viruses with pandemic potential. NS1 protein of influenza A viruses is a key virulence factor and a major antagonist of innate immune responses. It is also involved in enhancing viral mRNA translation and regulation of virus replication. Being a protein with pleiotropic functions, NS1 has a variety of cellular interaction partners. Hence, studies on swine influenza viruses (SIV) and identification of swine influenza NS1-interacting host proteins is of great interest. Here, we constructed a recombinant SIV carrying a Strep-tag in the NS1 protein and infected primary swine respiratory epithelial cells (SRECs) with this virus. The Strep-tag sequence in the NS1 protein enabled us to purify intact, the NS1 protein and its interacting protein complex specifically. We identified cellular proteins present in the purified complex by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and generated a dataset of these proteins. 445 proteins were identified by LC-MS/MS and among them 192 proteins were selected by setting up a threshold based on MS parameters. The selected proteins were analyzed by bioinformatics and were categorized as belonging to different functional groups including translation, RNA processing, cytoskeleton, innate immunity, and apoptosis. Protein interaction networks were derived using these data and the NS1 interactions with some of the specific host factors were verified by immunoprecipitation. The novel proteins and the networks revealed in our study will be the potential candidates for targeted study of the molecular interaction of NS1 with host proteins, which will provide insights into the identification of new therapeutic targets to control influenza infection and disease pathogenesis.
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Affiliation(s)
- Sathya N Thulasi Raman
- Vaccine and Infectious Disease Organization - International Vaccine Centre, University of Saskatchewan, SaskatoonSK, Canada; Vaccinology and Immunotherapeutics Program, School of Public Health, University of Saskatchewan, SaskatoonSK, Canada
| | - Yan Zhou
- Vaccine and Infectious Disease Organization - International Vaccine Centre, University of Saskatchewan, SaskatoonSK, Canada; Vaccinology and Immunotherapeutics Program, School of Public Health, University of Saskatchewan, SaskatoonSK, Canada
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