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Das U, Chawla-Sarkar M, Gangopadhyay SR, Dey S, Sharma RD. Role of Influenza A virus protein NS1 in regulating host nuclear body ND10 complex formation and its involvement in establishment of viral pathogenesis. PLoS One 2024; 19:e0295522. [PMID: 38166085 PMCID: PMC10760828 DOI: 10.1371/journal.pone.0295522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 11/21/2023] [Indexed: 01/04/2024] Open
Abstract
Influenza viral infection is a seasonal infection which causes widespread acute respiratory issues among humans globally. This virus changes its surface receptor composition to escape the recognition process by the host's immune cells. Therefore, the present study focussed to identify some other important viral proteins which have a significant role in establishment of infection and having apparent conserved structural composition. This could facilitate the permanent vaccine development process or help in designing a drug against IAV (influenza A virus) infection which will eliminate the seasonal flu shot vaccination process. The NS1 (Non-structural protein 1) protein of IAV maintains a conserved structural motif. Earlier studies have shown its significant role in infection establishment. However, the mechanism by which viruses escape the host's ND10 antiviral action remains elusive. The present study clearly showed that IAV infection and NS1 transfection in A549 cells degraded the main component of the ND10 anti-viral complex, PML and therefore, inhibited the formation of Daxx-sp100-p53-PML complex (ND10) at the mid phase of infection/transfection. PML degradation activated the stress axis which increased cellular ROS (reactive oxygen species) levels as well as mitochondrial dysfunction. Additionally, IAV/NS1 increased cellular stress and p53 accumulation at the late phase of infection. These collectively activated apoptotic pathway in the host cells. Along with the inactivation of several interferon proteins, IAV was found to decrease p-IKKε. A549 cells transfected with pcDNA3.1-NS1 showed a similar effect in the interferon axis and IKKε. Moreover, NS1 induced the disintegration of the host's ND10 complex through the changes in the SUMOylation pattern of the PML nuclear body. These findings suggest the possible mechanism of how NS1 helps IAV to establish infection in the host cells. However, it demands further detailed study before targeting NS1 to develop permanent vaccines or novel drugs against IAV in future.
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Affiliation(s)
- Ujjal Das
- Barrackpore Rastraguru Surendranath College, Barrackpore, India
- Endocrine Research Facilities, Department of Animal Science, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Mamta Chawla-Sarkar
- Division of Virology, National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, India
| | | | - Sanjit Dey
- Department of Physiology, University of Calcutta, Kolkata, India
| | - Rakhi Dey Sharma
- Barrackpore Rastraguru Surendranath College, Barrackpore, India
- Natural Science Research Centre of Belda College under Vidyasagar University and Department of Physiology, Belda College, Belda, Paschim Medinipur, India
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Sengupta S, Manna S, Saha B, Tripathi A. Impact of apoptotic biomarkers for prognosis of dengue disease severity among eastern Indian patients. J Med Virol 2023; 95:e29180. [PMID: 37855704 DOI: 10.1002/jmv.29180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/23/2023] [Accepted: 10/07/2023] [Indexed: 10/20/2023]
Abstract
Dengue virus (DENV) induced severe manifestations is a precursor for fatality among infected patients. Previous autopsy examinations of severe dengue (SD) patients reported presence of apoptotic cells in liver, brain, intestinal and lung tissues. Thus, serum-level of major apoptotic proteins of dengue patients was evaluated in the current study, along with their biochemical parameters. Patients were categorized according to World Health Organization (WHO)-defined classification. DENV-infection was screened among 165 symptomatic patients by quantitative reverse transcription polymerase chain reaction, antidengue IgM, and IgG ELISA. Serum levels of apoptotic (Capase-3,7,8, Bcl-2 and FasL) and hepatic-markers, lipid profile, hematological parameters of 78 dengue-positive patients were determined by sandwich-ELISA/immunoturbidimetry/auto-analyzer. Significantly higher levels of caspase-3,7,8 and FasL was detected among SD patients compared to those without warning (WOW) signs. Amongst biochemical parameters, bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase serum concentrations significantly increased among severe patients. Principal component analysis followed by hierarchical clustering differentiated severe and with warning dengue patient groups from those WOW using caspase-3,7,8 and FasL biomarkers-thus clearly distinguishing severe-dengue group. Correlation analyses also established strong positive correlation between caspase-3,7,8 and FasL. Thus, serum level of caspase-3,7,8 and FasL during early stage of infection could be used as biomarkers for WHO-defined dengue disease severity.
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Affiliation(s)
- Siddhartha Sengupta
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
| | - Srijan Manna
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
| | - Bibhuti Saha
- Department of Tropical Medicine, Infectious Diseases & Advanced Microbiology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
| | - Anusri Tripathi
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
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Yin L, Liu S, Shi H, Feng Y, Zhang Y, Wu D, Song Z, Zhang L. Subcellular Proteomic Analysis Reveals Dysregulation in Organization of Human A549 Cells Infected with Influenza Virus H7N9. CURR PROTEOMICS 2021. [DOI: 10.2174/1570164619666211222145450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
H7N9 influenza virus poses a high risk to human beings and proteomic evaluations of these infections may help to better understand its pathogenic mechanisms in human systems. Objective: To find membrane proteins related to H7N9 infection.
Methods:
Here, we infected primary human alveolar adenocarcinoma epithelial cells (A549) cells with H7N9 (including wild and mutant strains) and then produced enriched cellular membrane isolations which were evaluated by western blot. The proteins in these cell membrane fractions were analyzed using the isobaric Tags for Relative and Absolute Quantitation (iTRAQ) proteome technologies.
Results:
Differentially expressed proteins (n = 32) were identified following liquid chromatography-tandem mass spectrometry, including 20 down-regulated proteins such as CD44 antigen, and CD151 antigen, and 12 up-regulated proteins such as tight junction protein ZO-1, and prostaglandin reductase 1. Gene Ontology database searching revealed that 20 out of the 32 differentially expressed proteins were localized to the plasma membrane. These proteins were primarily associated with cellular component organization (n = 20), and enriched in the Reactome pathway of extracellular matrix organization (n = 4).
Conclusion:
These findings indicate that H7N9 may dysregulate cellular organization via specific alterations to the protein profile of the plasma membrane.
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Affiliation(s)
- Lin Yin
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Siyuan Liu
- The College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 201400, China
| | - Huichun Shi
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Yanling Feng
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Yujiao Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Dage Wu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Zhigang Song
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Lijun Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
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Evseev D, Magor KE. Molecular Evolution of the Influenza A Virus Non-structural Protein 1 in Interspecies Transmission and Adaptation. Front Microbiol 2021; 12:693204. [PMID: 34671321 PMCID: PMC8521145 DOI: 10.3389/fmicb.2021.693204] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 09/06/2021] [Indexed: 12/03/2022] Open
Abstract
The non-structural protein 1 (NS1) of influenza A viruses plays important roles in viral fitness and in the process of interspecies adaptation. It is one of the most polymorphic and mutation-tolerant proteins of the influenza A genome, but its evolutionary patterns in different host species and the selective pressures that underlie them are hard to define. In this review, we highlight some of the species-specific molecular signatures apparent in different NS1 proteins and discuss two functions of NS1 in the process of viral adaptation to new host species. First, we consider the ability of NS1 proteins to broadly suppress host protein expression through interaction with CPSF4. This NS1 function can be spontaneously lost and regained through mutation and must be balanced against the need for host co-factors to aid efficient viral replication. Evidence suggests that this function of NS1 may be selectively lost in the initial stages of viral adaptation to some new host species. Second, we explore the ability of NS1 proteins to inhibit antiviral interferon signaling, an essential function for viral replication without which the virus is severely attenuated in any host. Innate immune suppression by NS1 not only enables viral replication in tissues, but also dampens the adaptive immune response and immunological memory. NS1 proteins suppress interferon signaling and effector functions through a variety of protein-protein interactions that may differ from host to host but must achieve similar goals. The multifunctional influenza A virus NS1 protein is highly plastic, highly versatile, and demonstrates a diversity of context-dependent solutions to the problem of interspecies adaptation.
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Affiliation(s)
| | - Katharine E. Magor
- Department of Biological Sciences, Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
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5
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Ji ZX, Wang XQ, Liu XF. NS1: A Key Protein in the "Game" Between Influenza A Virus and Host in Innate Immunity. Front Cell Infect Microbiol 2021; 11:670177. [PMID: 34327148 PMCID: PMC8315046 DOI: 10.3389/fcimb.2021.670177] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 06/25/2021] [Indexed: 12/24/2022] Open
Abstract
Since the influenza pandemic occurred in 1918, people have recognized the perniciousness of this virus. It can cause mild to severe infections in animals and humans worldwide, with extremely high morbidity and mortality. Since the first day of human discovery of it, the “game” between the influenza virus and the host has never stopped. NS1 protein is the key protein of the influenza virus against host innate immunity. The interaction between viruses and organisms is a complex and dynamic process, in which they restrict each other, but retain their own advantages. In this review, we start by introducing the structure and biological characteristics of NS1, and then investigate the factors that affect pathogenicity of influenza which determined by NS1. In order to uncover the importance of NS1, we analyze the interaction of NS1 protein with interferon system in innate immunity and the molecular mechanism of host antagonism to NS1 protein, highlight the unique biological function of NS1 protein in cell cycle.
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Affiliation(s)
- Zhu-Xing Ji
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiao-Quan Wang
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 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
| | - Xiu-Fan Liu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 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
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6
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Yang L, Wang C, Shu J, Feng H, He Y, Chen J, Shu J. Porcine Epidemic Diarrhea Virus Induces Vero Cell Apoptosis via the p53-PUMA Signaling Pathway. Viruses 2021; 13:v13071218. [PMID: 34202551 PMCID: PMC8310168 DOI: 10.3390/v13071218] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/08/2021] [Accepted: 06/15/2021] [Indexed: 11/25/2022] Open
Abstract
Porcine Epidemic Diarrhea Virus (PEDV) is the causative agent of swine epidemic diarrhea. In order to study the pathogenic mechanism of PEDV, PEDV was inoculated into Vero cells cultured in vitro, and the total RNA of Vero cells was extracted to construct a library for Illumina high-throughput sequencing and screening of differentially expressed genes (p < 0.05). Five differentially expressed genes for qRT-PCR verification analysis were randomly selected, and the verification results were consistent with the transcriptome sequencing results. The Kyoto Encyclopedia of Genes and Genomes (KEGG) signal pathway enrichment analysis was performed on the differentially expressed genes screened above. The results showed that the target gene annotations of differentially expressed genes in the African green monkey genome were mainly enriched in the TNF signaling pathway, the P53 signaling pathway, the Jak-STAT signaling pathway, the MAPK signaling pathway, and immune inflammation. In addition, it has been reported that Puma can promote apoptosis and is a key mediator of P53-dependent and non-dependent apoptosis pathways. However, there is no report that PEDV infection can activate Puma and induce apoptosis in a P53-dependent pathway. It was found by flow cytometry that PEDV infection induced apoptosis, and by Western Blotting detection, PEDV infection significantly increased the expression of p53, BAX, and Puma apoptosis-related proteins. Treatment Vero cells with the p53 inhibitor, PFT-α, could significantly inhibit PEDV-induced apoptosis. Studies have shown that PEDV infection can activate Puma and induce apoptosis in a P53-dependent pathway. These findings provide data support for further elucidating the pathogenic mechanism of PEDV and developing an effective vaccine against PEDV.
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Affiliation(s)
- Lin Yang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China; (L.Y.); (C.W.); (J.S.); (H.F.); (Y.H.); (J.C.)
| | - Chenyu Wang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China; (L.Y.); (C.W.); (J.S.); (H.F.); (Y.H.); (J.C.)
| | - Jinqi Shu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China; (L.Y.); (C.W.); (J.S.); (H.F.); (Y.H.); (J.C.)
| | - Huapeng Feng
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China; (L.Y.); (C.W.); (J.S.); (H.F.); (Y.H.); (J.C.)
| | - Yulong He
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China; (L.Y.); (C.W.); (J.S.); (H.F.); (Y.H.); (J.C.)
| | - Jian Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China; (L.Y.); (C.W.); (J.S.); (H.F.); (Y.H.); (J.C.)
| | - Jianhong Shu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China; (L.Y.); (C.W.); (J.S.); (H.F.); (Y.H.); (J.C.)
- Shaoxing Biomedical Research Institute, Zhejiang Sci-Tech University, Shaoxing 312000, China
- Correspondence:
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7
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Hong SL, Zhang N, Qin L, Tang M, Ai Z, Chen A, Wang S, Liu K. An automated detection of influenza virus based on 3-D magnetophoretic separation and magnetic label. Analyst 2020; 146:930-936. [PMID: 33242034 DOI: 10.1039/d0an01854f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Automated detection of the influenza virus is important for the prevention of infectious viruses. Herein, assisted by three-dimensional (3-D) magnetophoretic separation and magnetic label, an automated detection device was constructed for H7N9 influenza virus hemagglutinin. Multi-layer glass slides were used to generate a 3-D microchannel network with two-level channels, realizing 3-D magnetophoretic separation with a magnetic field in the vertical direction to microchannels for the sample treatment. After the immunomagnetic separation, a magnetic-tagged complex was captured in an antibody-modified glass capillary, where magnetic beads further as a label could cause the voltage change of the miniature tube liquid sensor to obtain the detection signal. Moreover, the whole detection process and detection results were controlled and read through a liquid crystal display (LCD) screen to improve the automation. Finally, the detection limit was calculated to be 8.4 ng mL-1 for H7N9 hemagglutinin and had good specificity and reproducibility. These results indicate that this detection device proposes promising automated avenues for the early detection of infectious diseases.
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Affiliation(s)
- Shao-Li Hong
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan 430200, People's Republic of China.
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Hu J, Zhang L, Liu X. Role of Post-translational Modifications in Influenza A Virus Life Cycle and Host Innate Immune Response. Front Microbiol 2020; 11:517461. [PMID: 33013775 PMCID: PMC7498822 DOI: 10.3389/fmicb.2020.517461] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 08/14/2020] [Indexed: 01/01/2023] Open
Abstract
Throughout various stages of its life cycle, influenza A virus relies heavily on host cellular machinery, including the post-translational modifications (PTMs) system. During infection, influenza virus interacts extensively with the cellular PTMs system to aid in its successful infection and dissemination. The complex interplay between viruses and the PTMs system induces global changes in PTMs of the host proteome as well as modifications of specific host or viral proteins. The most common PTMs include phosphorylation, ubiquitination, SUMOylation, acetylation, methylation, NEDDylation, and glycosylation. Many PTMs directly support influenza virus infection, whereas others contribute to modulating antiviral responses. In this review, we describe current knowledge regarding the role of PTMs in different stages of the influenza virus replication cycle. We also discuss the concerted role of PTMs in antagonizing host antiviral responses, with an emphasis on their impact on viral pathogenicity and host range.
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Affiliation(s)
- Jiao Hu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, China
| | - Lei Zhang
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, China
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, Yangzhou, China
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Laghlali G, Lawlor KE, Tate MD. Die Another Way: Interplay between Influenza A Virus, Inflammation and Cell Death. Viruses 2020; 12:v12040401. [PMID: 32260457 PMCID: PMC7232208 DOI: 10.3390/v12040401] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 02/08/2023] Open
Abstract
Influenza A virus (IAV) is a major concern to human health due to the ongoing global threat of a pandemic. Inflammatory and cell death signalling pathways play important roles in host defence against IAV infection. However, severe IAV infections in humans are characterised by excessive inflammation and tissue damage, often leading to fatal disease. While the molecular mechanisms involved in the induction of inflammation during IAV infection have been well studied, the pathways involved in IAV-induced cell death and their impact on immunopathology have not been fully elucidated. There is increasing evidence of significant crosstalk between cell death and inflammatory pathways and a greater understanding of their role in host defence and disease may facilitate the design of new treatments for IAV infection.
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Affiliation(s)
- Gabriel Laghlali
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (G.L.); (K.E.L.)
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3168, Australia
- Master de Biologie, École Normale Supérieure de Lyon, Université Claude Bernard Lyon I, Université de Lyon, 69007 Lyon, France
| | - Kate E. Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (G.L.); (K.E.L.)
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3168, Australia
| | - Michelle D. Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC 3168, Australia; (G.L.); (K.E.L.)
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC 3168, Australia
- Correspondence: ; Tel.: +61-85722742
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Wang S, Ai Z, Zhang Z, Tang M, Zhang N, Liu F, Han G, Hong SL, Liu K. Simultaneous and automated detection of influenza A virus hemagglutinin H7 and H9 based on magnetism and size mediated microfluidic chip. Sens Actuators B Chem 2020; 308:127675. [PMID: 32288257 PMCID: PMC7125920 DOI: 10.1016/j.snb.2020.127675] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 12/30/2019] [Accepted: 01/05/2020] [Indexed: 05/04/2023]
Abstract
Influenza viruses with multiple subtypes have highly virulent in humans, of which influenza hemagglutinin (HA) is the major viral surface antigen. Simultaneous and automated detection of multiple influenza HA are of great importance for early-stage diagnosis and operator protection. Herein, a magnetism and size mediated microfluidic platform was developed for point-of-care detection of multiple influenza HA. With multiplex microvalves and computer program control, the detection process showed high automation which had a great potential for avoiding the high-risk virus exposure to the operator. Taking advantage of magnetism and size mediated multiple physical fields, multiple influenza HA could be simultaneous separation and detection depended on different-size magnetic beads. Using high-luminance quantum dots as reporter, this assay achieved high sensitivity with a detection limit of 3.4 ng/mL for H7N9 HA and 4.5 ng/mL for H9N2 HA, and showed excellent specificity, anti-interference ability and good reproducibility. These results indicate that this method may propose new avenues for early detection of multiple influenza subtypes.
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Affiliation(s)
- Shuibing Wang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
| | - Zhao Ai
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
| | - Zefen Zhang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
| | - Man Tang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
| | - Nangang Zhang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
| | - Feng Liu
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
| | - Gujing Han
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
| | - Shao-Li Hong
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Wuhan University), Ministry of Education, People's Republic of China
| | - Kan Liu
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
- Hubei Province Engineering Research Center for Intelligent Micro-nano Medical Equipment and Key Technologies, Wuhan 30200, People's Republic of China
- Hubei Engineering and Technology Research Center for Functional Fiber Fabrication and Testing, Wuhan 430200,People's Republic of China
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, People's Republic of China
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Lee ACY, Zhang AJX, Chu H, Li C, Zhu H, Mak WWN, Chen Y, Kok KH, To KKW, Yuen KY. H7N9 influenza A virus activation of necroptosis in human monocytes links innate and adaptive immune responses. Cell Death Dis 2019; 10:442. [PMID: 31165725 DOI: 10.1038/s41419-019-1684-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/06/2019] [Accepted: 05/23/2019] [Indexed: 12/16/2022]
Abstract
We previously demonstrated that avian influenza A H7N9 virus preferentially infected CD14+ monocyte in human peripheral blood mononuclear cells (PBMCs), which led to apoptosis. To better understand H7N9 pathogenesis in relation to monocyte cell death, we showed here that extensive phosphorylation of mixed lineage kinase domain-like (MLKL) protein occurred concurrently with the activation of caspases-8, -9 and -3 in H7N9-infected monocytes at 6 h post infection (hpi), indicating that apoptosis and necroptosis pathways were simultaneously activated. The apoptotic morphology was readily observed in H7N9-infected monocytes with transmission electron microscopy (TEM), while the pan-caspase inhibitor, IDN6556 (IDN), accelerated cell death through necroptosis as evidenced by the increased level of pMLKL accompanied with cell swelling and plasma membrane rupture. Most importantly, H7N9-induced cell death could only be stopped by the combined treatment of IDN and necrosulfonamide (NSA), a pMLKL membrane translocation inhibitor, but not by individual inhibition of caspase or RIPK3. Our data further showed that activation of apoptosis and necroptosis pathways in monocytes differentially contributed to the immune response of monocytes upon H7N9 infection. Specifically, caspase inhibition significantly enhanced, while RIPK3 inhibition reduced the early expression of type I interferons and cytokine/chemokines in H7N9-infected monocytes. Moreover, culture supernatants from IDN-treated H7N9-infected monocyte promoted the expression of co-stimulatory molecule CD80, CD83 and CD86 on freshly isolated monocytes and monocyte-derived dendritic cells (MDCs) and enhanced the capacity of MDCs to induce CD3+ T-cell proliferation in vitro. In contrast, these immune stimulatory effects were abrogated by using culture supernatants from H7N9-infected monocyte with RIPK3 inhibition. In conclusion, our findings indicated that H7N9 infection activated both apoptosis and necroptosis in monocytes. An intact RIPK3 activity is required for upregulation of innate immune responses, while caspase activation suppresses the immune response.
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Xu X, Xu Y, Zhang Q, Yang F, Yin Z, Wang L, Li Q. Porcine epidemic diarrhea virus infections induce apoptosis in Vero cells via a reactive oxygen species (ROS)/p53, but not p38 MAPK and SAPK/JNK signalling pathways. Vet Microbiol 2019; 232:1-12. [PMID: 31030832 PMCID: PMC7117205 DOI: 10.1016/j.vetmic.2019.03.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/25/2019] [Accepted: 03/25/2019] [Indexed: 12/25/2022]
Abstract
p53 is activated, translocated to nucleus and involved in PEDV-induced apoptosis. ROS are accumulated during PEDV infection and involved in PEDV-induced apoptosis. ROS are the upper stream of p53 in PEDV infection. This is the first report that PEDV induce Vero cells apoptosis via ROS/p53 signal pathway.
Porcine epidemic diarrhea virus (PEDV) is a member of Coronavirus, which causes severe watery diarrhea in piglets with high morbidity and mortality. ROS and p53 play key roles in regulating many kinds of cell process during viral infection, however, the exact function in PEDV-induced apoptosis remains unclear. In this study, the pro-apoptotic effect of PEDV was examined in Vero cells and we observed that PEDV infection increased MDM2 and CBP, promoted p53 phosphorylation at serine 20 and, promoted p53 nuclear translocation, leading to p53 activation in Vero cells. Treatment with the p53 inhibitor PFT-α could significantly inhibit PEDV-induced apoptosis. We also observed PEDV infection induced time-dependent ROS accumulation. Treatment with antioxidants, such as pyrrolidine dithiocarbamate (PDTC) or N-acetylcysteine (NAC), significantly inhibited PEDV-induced apoptosis. Moreover, further inhibition tests were established to prove that p53 was regulated by ROS in PEDV-induced apoptosis. In addition, we also found that p38 MAPK and SAPK/JNK were activated in PEDV-infected Vero cells. However, treatment with the p38 MAPK inhibitor SB203580, and the SAPK/JNK inhibitor SP600125 reversed PEDV-induced apoptosis. Taken together, the results of this study demonstrate that activated p53 and accumulated ROS participated in PEDV-induced apoptosis and p53 could be regulated by ROS during PEDV infection. Activated p38 MAPK and SAPK/JNK exerted no influence on PEDV-induced apoptosis. These findings provide new insights into the function of p53 and ROS in the interaction of PEDV with Vero cells.
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Affiliation(s)
- Xingang Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ying Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qi Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Feng Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zheng Yin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lixiang Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qinfan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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Affiliation(s)
- Hai Feng Wang
- School of Environmental Engineering, Central Plains Specialty Food Engineering & Technology Research Center, Yellow River Conservancy Technical Institute, Kaifeng, PR China
| | - Hong Xuan He
- National Research Center for Wildlife-Borne Diseases, Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, PR China
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Cui X, Ji Y, Wang Z, Du Y, Guo H, Wang L, Chen H, Zhu Q. A 113-amino-acid truncation at the NS1 C-terminus is a determinant for viral replication of H5N6 avian influenza virus in vitro and in vivo. Vet Microbiol 2018; 225:6-16. [PMID: 30322535 DOI: 10.1016/j.vetmic.2018.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/11/2018] [Accepted: 09/11/2018] [Indexed: 01/04/2023]
Abstract
Virulence of highly pathogenic avian influenza viruses (AIV) is determined by multiple genes and their encoded proteins. In particular, the nonstructural protein 1 (NS1) of viruses is a multifunctional protein that plays an important role in type I interferon (IFN) antagonism, pathogenicity, and determining viral host range. Naturally-occurring truncation or mutation of NS1 during virus evolution attenuates viral replication and pathogenicity, but the mechanisms underlying this phenomenon remain poorly understood. In the present study, we rescued an H5N6 AIV harboring a 113-amino-acid (aa) truncated NS1 at the C-terminus that had previously naturally occurred in an H3N8 equine influenza virus (designated as rHN109 NS1/112). The replication and pathogenicity of the rescued and parental viruses were then assessed in vitro in cells and in vivo in chickens and mice. Replication of rHN109 NS1/112 virus was significantly attenuated in various cells compared to its parental virus. The attenuation of rHN109 NS1/112 virus was subsequently clarified by investigating the effects on IFN and apoptosis signaling pathways via multiple experiments. The results indicated that the 113-aa truncation of NS1 impairs viral inhibition of IFN production and enhances cellular apoptosis in avian and mammalian cells. Animal studies further indicated that replication of the rHN109 NS1/112 virus is remarkably attenuated in chickens. The results of this study improve our understanding of C-terminal region function for NS1 proteins of influenza viruses.
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Affiliation(s)
- Xiaole Cui
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, PR China
| | - Yanhong Ji
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, PR China
| | - Zhengxiang Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, PR China
| | - Yingying Du
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, PR China
| | - Haoran Guo
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, PR China
| | - Liang Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, PR China
| | - Hualan Chen
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150069, PR China
| | - Qiyun Zhu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, PR China.
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Liu Y, Dong X, Wang W, You L, Yin X, Yang C, Sai N, Leng X, Ni J. Molecular Mechanisms of Apoptosis in HepaRG Cell Line Induced by Polyphyllin VI via the Fas Death Pathway and Mitochondrial-Dependent Pathway. Toxins (Basel) 2018; 10:E201. [PMID: 29762502 DOI: 10.3390/toxins10050201] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 05/08/2018] [Accepted: 05/10/2018] [Indexed: 12/27/2022] Open
Abstract
Polyphyllin VI, which is an active saponin, is mainly isolated from traditional medicinal plant Paris polyphylla, which causes liver damage in rats. In the present study, we aimed to explore the potential cytotoxicity of polyphyllin VI on the growth of HepaRG cells and to determine the molecular mechanism. The results revealed that polyphyllin VI changed cell morphology and induced apoptosis in HepaRG cells. Flow cytometric assay displayed that polyphyllin VI promoted the generation of reactive oxygen species (ROS), depolarized the mitochondrial membrane potential (MMP), and induced S phase cell cycle arrest by decreasing the expression of cyclin A2 and CDK2, while significantly increasing the expression of p21 protein. Polyphyllin VI induced the release of cytochrome c from the mitochondria to the cytosol and activated Fas, caspase-3, -8, -9, and PARP proteins. Pretreatment with NAC and Z-VAD-FMK (ROS scavenger and caspase inhibitor, respectively) on HepaRG cells increased the percentage of viable cells, which indicated that polyphyllin VI induced cell apoptosis through mitochondrial pathway by the generation of ROS and Fas death-dependent pathway. All of the effects are in dose- and time-dependent manners. Taken together, these findings emphasize the necessity of risk assessment to polyphyllin VI and offer an insight into polyphyllin VI-induced apoptosis of HepaRG cells.
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Zhang R, Hong S, Wen C, Pang D, Zhang Z. Rapid detection and subtyping of multiple influenza viruses on a microfluidic chip integrated with controllable micro-magnetic field. Biosens Bioelectron 2018; 100:348-54. [DOI: 10.1016/j.bios.2017.08.048] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/10/2017] [Accepted: 08/21/2017] [Indexed: 02/01/2023]
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Yan Y, Du Y, Wang G, Li K. Non-structural protein 1 of H3N2 influenza A virus induces nucleolar stress via interaction with nucleolin. Sci Rep 2017; 7:17761. [PMID: 29259342 PMCID: PMC5736645 DOI: 10.1038/s41598-017-18087-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 12/05/2017] [Indexed: 02/05/2023] Open
Abstract
The nucleolus is a stress sensor associated with cell cycle progression and a central hub for the replication of pathogenic RNA viruses. However, the role of nucleolus in influenza A virus infection has not been well studied. Here we show that the interaction between NS1 protein of influenza A/Shantou/602/06 (H3N2) and nucleolin, a ubiquitous protein of nucleolus repressed RNA Pol I-dependent transcription via establishing hyper-methylation in the UCE of rRNA gene promoter. NS1 expressed cells showed significant association of ribosomal proteins with MDM2, and p53 accumulation, suggesting induced nucleolar stress. Disruption of the interaction of NS1 with nucleolin or overexpression of nucleolin in NS1 expressed cells revived RNA Pol I-dependent transcription, indicating nucleolin could be one target for NS1 to repress rRNA synthesis of host cells. Our present study suggests that NS1 protein of H3N2 could induce nucleolar stress based on epigenetic alteration of rRNA gene promoter via interaction with nucleolin.
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Affiliation(s)
- Yinxia Yan
- Key Laboratory of Infectious Diseases and Molecular Immunopathology of Guangdong Province, Department of Microbiology and Immunology, Shantou University Medical College, Shantou, Guangdong Province, China
| | - Yongming Du
- Key Laboratory of Infectious Diseases and Molecular Immunopathology of Guangdong Province, Department of Microbiology and Immunology, Shantou University Medical College, Shantou, Guangdong Province, China
| | - Gefei Wang
- Key Laboratory of Infectious Diseases and Molecular Immunopathology of Guangdong Province, Department of Microbiology and Immunology, Shantou University Medical College, Shantou, Guangdong Province, China.
| | - Kangsheng Li
- Key Laboratory of Infectious Diseases and Molecular Immunopathology of Guangdong Province, Department of Microbiology and Immunology, Shantou University Medical College, Shantou, Guangdong Province, China.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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20
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Nacken W, Wixler V, Ehrhardt C, Ludwig S. Influenza A virus NS1 protein-induced JNK activation and apoptosis are not functionally linked. Cell Microbiol 2017; 19. [DOI: 10.1111/cmi.12721] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/03/2017] [Accepted: 01/03/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Wolfgang Nacken
- Institute of Virology (IVM), University Hospital Münster; WWU; Germany
| | - Viktor Wixler
- Institute of Virology (IVM), University Hospital Münster; WWU; Germany
| | - Christina Ehrhardt
- Institute of Virology (IVM), University Hospital Münster; WWU; Germany
- Cluster of Excellence “Cells in Motion”; University of Muenster; Germany
- Interdisciplinary Center of Clinical Research (IZKF), UKM; WWU; Germany
| | - Stephan Ludwig
- Institute of Virology (IVM), University Hospital Münster; WWU; Germany
- Cluster of Excellence “Cells in Motion”; University of Muenster; Germany
- Interdisciplinary Center of Clinical Research (IZKF), UKM; WWU; Germany
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21
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Cao D, Li CY, Kang YF, Lin Y, Cui R, Pang DW, Tang HW. Dual-component gene detection for H7N9 virus – The combination of optical trapping and bead-based fluorescence assay. Biosens Bioelectron 2016; 86:1031-1037. [DOI: 10.1016/j.bios.2016.07.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/24/2016] [Accepted: 07/12/2016] [Indexed: 12/18/2022]
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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