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Davey R, Donahue C, Kesari A, Thakur N, Wang L, Hulsey-Stubbs S, Williams C, Kirby C, Leung D, Aryal U, Basler C, LaCount D. A protein-proximity screen reveals Ebola virus co-opts the mRNA decapping complex through the scaffold protein EDC4. Res Sq 2024:rs.3.rs-3838220. [PMID: 38352529 PMCID: PMC10862950 DOI: 10.21203/rs.3.rs-3838220/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The interaction of host and Ebola virus (EBOV) proteins is required for establishing infection of the cell. To identify protein binding partners, a proximity-dependent protein interaction screen was performed for six EBOV proteins. Hits were computationally mapped onto a human protein-protein interactome and then annotated with viral proteins to reveal known and previously undescribed EBOV-host protein interactions and processes. Importantly, this approach efficiently arranged proteins into functional complexes associated with single viral proteins. Focused characterization of interactions between EBOV VP35 and the mRNA decapping complex demonstrated that VP35 binds the scaffold protein EDC4 through the C-terminal subdomain, with each protein found associated in EBOV-infected cells. Mechanistically, depletion of three components of the complex each similarly inhibited viral replication by reducing early viral RNA synthesis. Overall, we demonstrate successful identification of EBOV protein interaction with entire cellular machines, providing a deeper understanding of replication mechanism for therapeutic intervention.
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2
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Liu Y, Guan W, Liu H. Subgenomic Flaviviral RNAs of Dengue Viruses. Viruses 2023; 15:2306. [PMID: 38140548 PMCID: PMC10747610 DOI: 10.3390/v15122306] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023] Open
Abstract
Subgenomic flaviviral RNAs (sfRNAs) are produced during flavivirus infections in both arthropod and vertebrate cells. They are undegraded products originating from the viral 3' untranslated region (3' UTR), a result of the action of the host 5'-3' exoribonuclease, Xrn1, when it encounters specific RNA structures known as Xrn1-resistant RNAs (xrRNAs) within the viral 3' UTR. Dengue viruses generate three to four distinct species of sfRNAs through the presence of two xrRNAs and two dumbbell structures (DBs). The tertiary structures of xrRNAs have been characterized to form a ringlike structure around the 5' end of the viral RNA, effectively inhibiting the activity of Xrn1. The most important role of DENV sfRNAs is to inhibit host antiviral responses by interacting with viral and host proteins, thereby influencing viral pathogenicity, replicative fitness, epidemiological fitness, and transmission. In this review, we aimed to summarize the biogenesis, structures, and functions of DENV sfRNAs, exploring their implications for viral interference.
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Affiliation(s)
- Yi Liu
- Hubei Jiangxia Laboratory, Wuhan 430200, China
| | - Wuxiang Guan
- Hubei Jiangxia Laboratory, Wuhan 430200, China
- Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430207, China
| | - Haibin Liu
- Hubei Jiangxia Laboratory, Wuhan 430200, China
- Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430207, China
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3
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Chen X, Li Y, Zhu F, Xu X, Estrella B, Pazos MA, McGuire JT, Karagiannis D, Sahu V, Mustafokulov M, Scuoppo C, Sánchez-Rivera FJ, Soto-Feliciano YM, Pasqualucci L, Ciccia A, Amengual JE, Lu C. Context-defined cancer co-dependency mapping identifies a functional interplay between PRC2 and MLL-MEN1 complex in lymphoma. Nat Commun 2023; 14:4259. [PMID: 37460547 DOI: 10.1038/s41467-023-39990-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 04/01/2022] [Accepted: 07/06/2023] [Indexed: 07/20/2023] Open
Abstract
Interplay between chromatin-associated complexes and modifications critically contribute to the partitioning of epigenome into stable and functionally distinct domains. Yet there is a lack of systematic identification of chromatin crosstalk mechanisms, limiting our understanding of the dynamic transition between chromatin states during development and disease. Here we perform co-dependency mapping of genes using CRISPR-Cas9-mediated fitness screens in pan-cancer cell lines to quantify gene-gene functional relationships. We identify 145 co-dependency modules and further define the molecular context underlying the essentiality of these modules by incorporating mutational, epigenome, gene expression and drug sensitivity profiles of cell lines. These analyses assign new protein complex composition and function, and predict new functional interactions, including an unexpected co-dependency between two transcriptionally counteracting chromatin complexes - polycomb repressive complex 2 (PRC2) and MLL-MEN1 complex. We show that PRC2-mediated H3K27 tri-methylation regulates the genome-wide distribution of MLL1 and MEN1. In lymphoma cells with EZH2 gain-of-function mutations, the re-localization of MLL-MEN1 complex drives oncogenic gene expression and results in a hypersensitivity to pharmacologic inhibition of MEN1. Together, our findings provide a resource for discovery of trans-regulatory interactions as mechanisms of chromatin regulation and potential targets of synthetic lethality.
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Affiliation(s)
- Xiao Chen
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Marine College, Shandong University, 264209, Weihai, China
| | - Yinglu Li
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Fang Zhu
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Union Hospital Cancer Center, Tongji Medical College, Huazhong University of Science and Technology, 430022, Wuhan, China
| | - Xinjing Xu
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Brian Estrella
- Division of Hematology and Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Manuel A Pazos
- Division of Hematology and Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - John T McGuire
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Dimitris Karagiannis
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Varun Sahu
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Mustafo Mustafokulov
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Claudio Scuoppo
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Francisco J Sánchez-Rivera
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Yadira M Soto-Feliciano
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Laura Pasqualucci
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Alberto Ciccia
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Institute for Cancer Genetics, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Jennifer E Amengual
- Division of Hematology and Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Chao Lu
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, 10032, USA.
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4
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Ivanoska-Dacikj A, Oguz-Gouillart Y, Hossain G, Kaplan M, Sivri Ç, Ros-Lis JV, Mikucioniene D, Munir MU, Kizildag N, Unal S, Safarik I, Akgül E, Yıldırım N, Bedeloğlu AÇ, Ünsal ÖF, Herwig G, Rossi RM, Wick P, Clement P, Sarac AS. Advanced and Smart Textiles during and after the COVID-19 Pandemic: Issues, Challenges, and Innovations. Healthcare (Basel) 2023; 11:healthcare11081115. [PMID: 37107948 PMCID: PMC10137734 DOI: 10.3390/healthcare11081115] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 04/29/2023] Open
Abstract
The COVID-19 pandemic has hugely affected the textile and apparel industry. Besides the negative impact due to supply chain disruptions, drop in demand, liquidity problems, and overstocking, this pandemic was found to be a window of opportunity since it accelerated the ongoing digitalization trends and the use of functional materials in the textile industry. This review paper covers the development of smart and advanced textiles that emerged as a response to the outbreak of SARS-CoV-2. We extensively cover the advancements in developing smart textiles that enable monitoring and sensing through electrospun nanofibers and nanogenerators. Additionally, we focus on improving medical textiles mainly through enhanced antiviral capabilities, which play a crucial role in pandemic prevention, protection, and control. We summarize the challenges that arise from personal protective equipment (PPE) disposal and finally give an overview of new smart textile-based products that emerged in the markets related to the control and spread reduction of SARS-CoV-2.
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Affiliation(s)
- Aleksandra Ivanoska-Dacikj
- Research Centre for Environment and Materials, Macedonian Academy of Sciences and Arts, Krste Misirkov 2, 1000 Skopje, North Macedonia
| | - Yesim Oguz-Gouillart
- Department of Building and Urban Environment, Innovative Textile Material, JUNIA, 59000 Lille, France
| | - Gaffar Hossain
- V-Trion GmbH Textile Research, Millennium Park 15, 6890 Lustenau, Austria
| | - Müslüm Kaplan
- Department of Textile Engineering, Faculty of Engineering, Architecture and Design, Bartin University, Bartin 74110, Turkey
| | - Çağlar Sivri
- Management Engineering Department, Faculty of Engineering and Natural Sciences, Bahcesehir University, İstanbul 34349, Turkey
| | - José Vicente Ros-Lis
- Centro de Reconocimiento Molecular y Desarrollo Tecnologico (IDM), Unidad Mixta Universitat Politecnica de Valencia, Universitat de Valencia, Departamento de Química Inorgánica, Universitat de València, Doctor Moliner 56, 46100 Valencia, Spain
| | - Daiva Mikucioniene
- Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentu Str. 56, 50404 Kaunas, Lithuania
| | - Muhammad Usman Munir
- Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentu Str. 56, 50404 Kaunas, Lithuania
| | - Nuray Kizildag
- Institute of Nanotechnology, Gebze Technical University, Gebze, Kocaeli 41400, Turkey
- Integrated Manufacturing Technologies Research and Application Center, Sabanci University, Pendik, Istanbul 34906, Turkey
| | - Serkan Unal
- Integrated Manufacturing Technologies Research and Application Center, Sabanci University, Pendik, Istanbul 34906, Turkey
- Faculty of Engineering and Natural Sciences, Material Science and Nanoengineering, Sabanci University, Tuzla, Istanbul 34956, Turkey
| | - Ivo Safarik
- Department of Nanobiotechnology, Biology Centre, ISBB, CAS, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Esra Akgül
- Department of Industrial Design Engineering, Faculty of Engineering, Erciyes University, Kayseri 38039, Turkey
| | - Nida Yıldırım
- Trabzon Vocational School, Karadeniz Technical University, Trabzon 61080, Turkey
| | - Ayşe Çelik Bedeloğlu
- Department of Polymer Materials Engineering, Faculty of Engineering and Natural Sciences, Bursa Technical University, Bursa 16310, Turkey
| | - Ömer Faruk Ünsal
- Department of Polymer Materials Engineering, Faculty of Engineering and Natural Sciences, Bursa Technical University, Bursa 16310, Turkey
| | - Gordon Herwig
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, 9014 St. Gallen, Switzerland
| | - René M Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, 9014 St. Gallen, Switzerland
| | - Peter Wick
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Particle-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Pietro Clement
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Particle-Biology Interactions, 9014 St. Gallen, Switzerland
| | - A Sezai Sarac
- Department of Chemistry, Polymer Science and Technology, Faculty of Sciences and Letters, Istanbul Technical University, Istanbul 34469, Turkey
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5
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BenDavid E, Pfaller CK, Pan Y, Samuel CE, Ma D. Host 5'-3' Exoribonuclease XRN1 Acts as a Proviral Factor for Measles Virus Replication by Downregulating the dsRNA-Activated Kinase PKR. J Virol 2022; 96:e0131922. [PMID: 36300942 PMCID: PMC9683022 DOI: 10.1128/jvi.01319-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/22/2022] [Indexed: 11/20/2022] Open
Abstract
Many negative-sense RNA viruses, including measles virus (MeV), are thought to carry out much of their viral replication in cytoplasmic membraneless foci known as inclusion bodies (IBs). The mechanisms by which IBs facilitate efficient viral replication remain largely unknown but may involve an intricate network of regulation at the host-virus interface. Viruses are able to modulate such interactions by a variety of strategies including adaptation of their genomes and "hijacking" of host proteins. The latter possibility broadens the molecular reservoir available for a virus to enhance its replication and/or antagonize host antiviral responses. Here, we show that the cellular 5'-3' exoribonuclease, XRN1, is a host protein hijacked by MeV. We found that upon MeV infection, XRN1 is translocated to cytoplasmic IBs where it acts in a proviral manner by preventing the accumulation of double-stranded RNA (dsRNA) within the IBs. This leads to the suppression of the dsRNA-induced innate immune responses mediated via the protein kinase R (PKR)-integrated stress response (ISR) pathway. IMPORTANCE Measles virus remains a major global health threat due to its high transmissibility and significant morbidity in children and immunocompromised individuals. Although there is an effective vaccine against MeV, a large population in the world remains without access to the vaccine, contributing to more than 7,000,000 measles cases and 60,000 measles deaths in 2020 (CDC). For negative-sense RNA viruses including MeV, one active research area is the exploration of virus-host interactions occurring at cytoplasmic IBs where viral replication takes place. In this study we present evidence suggesting a model in which MeV IBs antagonize host innate immunity by recruiting XRN1 to reduce dsRNA accumulation and subsequent PKR kinase activation/ISR induction. In the absence of XRN1, the increased dsRNA level acts as a potent activator of the antiviral PKR/ISR pathway leading to suppression of global cap-dependent mRNA translation and inhibition of viral replication.
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Affiliation(s)
- Ethan BenDavid
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, California, USA
| | | | - Yue Pan
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, California, USA
| | - Charles E. Samuel
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, California, USA
- Neuroscience Research Institute, University of California, Santa Barbara, California, USA
| | - Dzwokai Ma
- Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, California, USA
- Neuroscience Research Institute, University of California, Santa Barbara, California, USA
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6
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Lee S, Kim H, Hong A, Song J, Lee S, Kim M, Hwang SY, Jeong D, Kim J, Son A, Lee YS, Kim VN, Kim JS, Chang H, Ahn K. Functional and molecular dissection of HCMV long non-coding RNAs. Sci Rep 2022; 12:19303. [PMID: 36369338 PMCID: PMC9652368 DOI: 10.1038/s41598-022-23317-3] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/29/2022] [Indexed: 11/13/2022] Open
Abstract
Small, compact genomes confer a selective advantage to viruses, yet human cytomegalovirus (HCMV) expresses the long non-coding RNAs (lncRNAs); RNA1.2, RNA2.7, RNA4.9, and RNA5.0. Little is known about the function of these lncRNAs in the virus life cycle. Here, we dissected the functional and molecular landscape of HCMV lncRNAs. We found that HCMV lncRNAs occupy ~ 30% and 50-60% of total and poly(A)+viral transcriptome, respectively, throughout virus life cycle. RNA1.2, RNA2.7, and RNA4.9, the three abundantly expressed lncRNAs, appear to be essential in all infection states. Among these three lncRNAs, depletion of RNA2.7 and RNA4.9 results in the greatest defect in maintaining latent reservoir and promoting lytic replication, respectively. Moreover, we delineated the global post-transcriptional nature of HCMV lncRNAs by nanopore direct RNA sequencing and interactome analysis. We revealed that the lncRNAs are modified with N6-methyladenosine (m6A) and interact with m6A readers in all infection states. In-depth analysis demonstrated that m6A machineries stabilize HCMV lncRNAs, which could account for the overwhelming abundance of viral lncRNAs. Our study lays the groundwork for understanding the viral lncRNA-mediated regulation of host-virus interaction throughout the HCMV life cycle.
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Affiliation(s)
- Sungwon Lee
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Hyewon Kim
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Ari Hong
- grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea ,grid.31501.360000 0004 0470 5905Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826 Republic of Korea
| | - Jaewon Song
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Sungyul Lee
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Myeonghwan Kim
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Sung-yeon Hwang
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Dongjoon Jeong
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Jeesoo Kim
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Ahyeon Son
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Young-suk Lee
- grid.37172.300000 0001 2292 0500Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141 Republic of Korea
| | - V. Narry Kim
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Jong-seo Kim
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
| | - Hyeshik Chang
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea ,grid.31501.360000 0004 0470 5905Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826 Republic of Korea
| | - Kwangseog Ahn
- grid.31501.360000 0004 0470 5905School of Biological Sciences, Seoul National University, Seoul, 08826 Republic of Korea ,grid.410720.00000 0004 1784 4496Institute for Basic Science, Center for RNA Research, Seoul, 08826 Republic of Korea
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7
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Tan HY, Yong YK, Xue YC, Liu H, Furihata T, Shankar EM, Ng CS. cGAS and DDX41-STING mediated intrinsic immunity spreads intercellularly to promote neuroinflammation in SOD1 ALS model. iScience 2022; 25:104404. [PMID: 35712074 PMCID: PMC9194172 DOI: 10.1016/j.isci.2022.104404] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 09/29/2021] [Revised: 02/22/2022] [Accepted: 05/10/2022] [Indexed: 11/25/2022] Open
Abstract
Neuroinflammation exacerbates the progression of SOD1-driven amyotrophic lateral sclerosis (ALS), although the underlying mechanisms remain largely unknown. Herein, we demonstrate that misfolded SOD1 (SOD1Mut)-causing ALS results in mitochondrial damage, thus triggering the release of mtDNA and an RNA:DNA hybrid into the cytosol in an mPTP-independent manner to activate IRF3- and IFNAR-dependent type I interferon (IFN-I) and interferon-stimulating genes. The neuronal hyper-IFN-I and pro-inflammatory responses triggered in ALS-SOD1Mut were sufficiently robust to cause a strong physiological outcome in vitro and in vivo. cGAS/DDX41-STING-signaling is amplified in bystander cells through inter-neuronal gap junctions. Our results highlight the importance of a common DNA-sensing pathway between SOD1 and TDP-43 in influencing the progression of ALS. Constitutive basal activation of IFN-I was found in the SOD1-ALS animal model SOD1-ALS damaged mitochondria to release mtDNA and RNA:DNA to activate the STING-pathway Blocking cGAS and STING diminishes neurodegeneration in vivo in the SOD1-ALS model Connexin and pannexin channels are required to propagate neuroinflammation in SOD1-ALS
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Affiliation(s)
- Hong Yien Tan
- Laboratory Centre, Xiamen University Malaysia, Sepang, Selangor, Malaysia.,School of Traditional Chinese Medicine, Xiamen University Malaysia, Sepang, Selangor, Malaysia
| | - Yean Kong Yong
- Laboratory Centre, Xiamen University Malaysia, Sepang, Selangor, Malaysia
| | - Yuan Chao Xue
- Centre for Heart Lung Innovation, St Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.,Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Huitao Liu
- Centre for Heart Lung Innovation, St Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.,Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Tomomi Furihata
- Laboratory of Clinical Pharmacy and Experimental Therapeutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Esaki Muthu Shankar
- Infection Biology, Department of Life Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Chen Seng Ng
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Sepang, Selangor, Malaysia
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8
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Castle EL, Robinson CA, Douglas P, Rinker KD, Corcoran JA. Viral Manipulation of a Mechanoresponsive Signaling Axis Disassembles Processing Bodies. Mol Cell Biol 2021; 41:e0039921. [PMID: 34516278 PMCID: PMC8547432 DOI: 10.1128/mcb.00399-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 08/28/2021] [Accepted: 09/04/2021] [Indexed: 12/23/2022] Open
Abstract
Processing bodies (PBs) are ribonucleoprotein granules important for cytokine mRNA decay that are targeted for disassembly by many viruses. Kaposi's sarcoma-associated herpesvirus is the etiological agent of the inflammatory endothelial cancer, Kaposi's sarcoma, and a PB-regulating virus. The virus encodes kaposin B (KapB), which induces actin stress fibers (SFs) and cell spindling as well as PB disassembly. We now show that KapB-mediated PB disassembly requires actin rearrangements, RhoA effectors, and the mechanoresponsive transcription activator, YAP. Moreover, ectopic expression of active YAP or exposure of ECs to mechanical forces caused PB disassembly in the absence of KapB. We propose that the viral protein KapB activates a mechanoresponsive signaling axis and links changes in cell shape and cytoskeletal structures to enhanced inflammatory molecule expression using PB disassembly. Our work implies that cytoskeletal changes in other pathologies may similarly impact the inflammatory environment.
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Affiliation(s)
- Elizabeth L. Castle
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Carolyn-Ann Robinson
- Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Pauline Douglas
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Kristina D. Rinker
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Department of Chemical and Petroleum Engineering and Centre for Bioengineering Research and Education, University of Calgary, Calgary, Alberta, Canada
- Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Jennifer A. Corcoran
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
- Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
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9
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Liu YC, Mok BW, Wang P, Kuo RL, Chen H, Shih SR. Cellular 5'-3' mRNA Exoribonuclease XRN1 Inhibits Interferon Beta Activation and Facilitates Influenza A Virus Replication. mBio 2021; 12:e0094521. [PMID: 34311580 DOI: 10.1128/mBio.00945-21] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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] [Indexed: 01/28/2023] Open
Abstract
Cellular 5′-3′ exoribonuclease 1 (XRN1) is best known for its role as a decay factor, which by degrading 5′ monophosphate RNA after the decapping of DCP2 in P-bodies (PBs) in Drosophila, yeast, and mammals. XRN1 has been shown to degrade host antiviral mRNAs following the influenza A virus (IAV) PA-X-mediated exonucleolytic cleavage processes. However, the mechanistic details of how XRN1 facilitates influenza A virus replication remain unclear. In this study, we discovered that XRN1 and nonstructural protein 1 (NS1) of IAV are directly associated and colocalize in the PBs. Moreover, XRN1 downregulation impaired viral replication while the viral titers were significantly increased in cells overexpressing XRN1, which suggest that XRN1 is a positive regulator in IAV life cycle. We further demonstrated that the IAV growth curve could be suppressed by adenosine 3′,5′-bisphosphate (pAp) treatment, an inhibitor of XRN1. In virus-infected XRN1 knockout cells, the phosphorylated interferon regulatory factor 3 (p-IRF3) protein, interferon beta (IFN-β) mRNA, and interferon-stimulated genes (ISGs) were significantly increased, resulting in the enhancement of the host innate immune response and suppression of viral protein production. Our data suggest a novel mechanism by which the IAV hijacks the cellular XRN1 to suppress the host innate immune response and to facilitate viral replication.
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10
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Ortega Granda O, Valle C, Shannon A, Decroly E, Canard B, Coutard B, Rabah N. Structure and Sequence Requirements for RNA Capping at the Venezuelan Equine Encephalitis Virus RNA 5' End. J Virol 2021; 95:e0077721. [PMID: 34011549 DOI: 10.1128/JVI.00777-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Venezuelan equine encephalitis virus (VEEV) is a reemerging arthropod-borne virus causing encephalitis in humans and domesticated animals. VEEV possesses a positive single-stranded RNA genome capped at its 5' end. The capping process is performed by the nonstructural protein nsP1, which bears methyl and guanylyltransferase activities. The capping reaction starts with the methylation of GTP. The generated m7GTP is complexed to the enzyme to form an m7GMP-nsP1 covalent intermediate. The m7GMP is then transferred onto the 5'-diphosphate end of the viral RNA. Here, we explore the specificities of the acceptor substrate in terms of length, RNA secondary structure, and/or sequence. Any diphosphate nucleosides but GDP can serve as acceptors of the m7GMP to yield m7GpppA, m7GpppC, or m7GpppU. We show that capping is more efficient on small RNA molecules, whereas RNAs longer than 130 nucleotides are barely capped by the enzyme. The structure and sequence of the short, conserved stem-loop, downstream to the cap, is an essential regulatory element for the capping process. IMPORTANCE The emergence, reemergence, and expansion of alphaviruses (genus of the family Togaviridae) are a serious public health and epizootic threat. Venezuelan equine encephalitis virus (VEEV) causes encephalitis in human and domesticated animals, with a mortality rate reaching 80% in horses. To date, no efficient vaccine or safe antivirals are available for human use. VEEV nonstructural protein 1 (nsP1) is the viral capping enzyme characteristic of the Alphavirus genus. nsP1 catalyzes methyltransferase and guanylyltransferase reactions, representing a good therapeutic target. In the present report, we provide insights into the molecular features and specificities of the cap acceptor substrate for the guanylylation reaction.
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11
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Markiewicz L, Drazkowska K, Sikorski PJ. Tricks and threats of RNA viruses - towards understanding the fate of viral RNA. RNA Biol 2021; 18:669-687. [PMID: 33618611 PMCID: PMC8078519 DOI: 10.1080/15476286.2021.1875680] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 08/25/2020] [Revised: 12/22/2020] [Accepted: 01/09/2021] [Indexed: 12/24/2022] Open
Abstract
Human innate cellular defence pathways have evolved to sense and eliminate pathogens, of which, viruses are considered one of the most dangerous. Their relatively simple structure makes the identification of viral invasion a difficult task for cells. In the course of evolution, viral nucleic acids have become one of the strongest and most reliable early identifiers of infection. When considering RNA virus recognition, RNA sensing is the central mechanism in human innate immunity, and effectiveness of this sensing is crucial for triggering an appropriate antiviral response. Although human cells are armed with a variety of highly specialized receptors designed to respond only to pathogenic viral RNA, RNA viruses have developed an array of mechanisms to avoid being recognized by human interferon-mediated cellular defence systems. The repertoire of viral evasion strategies is extremely wide, ranging from masking pathogenic RNA through end modification, to utilizing sophisticated techniques to deceive host cellular RNA degrading enzymes, and hijacking the most basic metabolic pathways in host cells. In this review, we aim to dissect human RNA sensing mechanisms crucial for antiviral immune defences, as well as the strategies adopted by RNA viruses to avoid detection and degradation by host cells. We believe that understanding the fate of viral RNA upon infection, and detailing the molecular mechanisms behind virus-host interactions, may be helpful for developing more effective antiviral strategies; which are urgently needed to prevent the far-reaching consequences of widespread, highly pathogenic viral infections.
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12
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Jha N, Jeyaraman M, Rachamalla M, Ojha S, Dua K, Chellappan D, Muthu S, Sharma A, Jha S, Jain R, Jeyaraman N, Gs P, Satyam R, Khan F, Pandey P, Verma N, Singh S, Roychoudhury S, Dholpuria S, Ruokolainen J, Kesari K. Current Understanding of Novel Coronavirus: Molecular Pathogenesis, Diagnosis, and Treatment Approaches. Immuno 2021; 1:30-66. [DOI: 10.3390/immuno1010004] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
An outbreak of “Pneumonia of Unknown Etiology” occurred in Wuhan, China, in late December 2019. Later, the agent factor was identified and coined as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and the disease was named coronavirus disease 2019 (COVID-19). In a shorter period, this newly emergent infection brought the world to a standstill. On 11 March 2020, the WHO declared COVID-19 as a pandemic. Researchers across the globe have joined their hands to investigate SARS-CoV-2 in terms of pathogenicity, transmissibility, and deduce therapeutics to subjugate this infection. The researchers and scholars practicing different arts of medicine are on an extensive quest to come up with safer ways to curb the pathological implications of this viral infection. A huge number of clinical trials are underway from the branch of allopathy and naturopathy. Besides, a paradigm shift on cellular therapy and nano-medicine protocols has to be optimized for better clinical and functional outcomes of COVID-19-affected individuals. This article unveils a comprehensive review of the pathogenesis mode of spread, and various treatment modalities to combat COVID-19 disease.
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13
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Ng CS, Stobart CC, Luo H. Innate immune evasion mediated by picornaviral 3C protease: Possible lessons for coronaviral 3C-like protease? Rev Med Virol 2021; 31:1-22. [PMID: 33624382 PMCID: PMC7883238 DOI: 10.1002/rmv.2206] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 10/15/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 01/10/2023]
Abstract
Severe acute respiratory syndrome coronavirus-2 is the etiological agent of the ongoing pandemic of coronavirus disease-2019, a multi-organ disease that has triggered an unprecedented global health and economic crisis. The virally encoded 3C-like protease (3CLpro ), which is named after picornaviral 3C protease (3Cpro ) due to their similarities in substrate recognition and enzymatic activity, is essential for viral replication and has been considered as the primary drug target. However, information regarding the cellular substrates of 3CLpro and its interaction with the host remains scarce, though recent work has begun to shape our understanding more clearly. Here we summarized and compared the mechanisms by which picornaviruses and coronaviruses have evolved to evade innate immune surveillance, with a focus on the established role of 3Cpro in this process. Through this comparison, we hope to highlight the potential action and mechanisms that are conserved and shared between 3Cpro and 3CLpro . In this review, we also briefly discussed current advances in the development of broad-spectrum antivirals targeting both 3Cpro and 3CLpro .
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Affiliation(s)
- Chen Seng Ng
- Centre for Heart Lung Innovation, St Paul's Hospital, University of British Columbia, Vancouver, Canada.,Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, Canada
| | | | - Honglin Luo
- Centre for Heart Lung Innovation, St Paul's Hospital, University of British Columbia, Vancouver, Canada.,Department of Pathology and Laboratory of Medicine, University of British Columbia, Vancouver, Canada
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14
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Abstract
Among several possible therapies applicable for treating COVID-19, nitric oxide therapy has also gained considerable interest. This article describes the same with mechanistic details.
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Affiliation(s)
- Jan Mohammad Mir
- Coordination, Metallopharmaceutical and Computational Laboratory
- Department of PG Studies and Research in Chemistry and Pharmacy
- R. D. University
- Jabalpur
- India
| | - Ram Charitra Maurya
- Coordination, Metallopharmaceutical and Computational Laboratory
- Department of PG Studies and Research in Chemistry and Pharmacy
- R. D. University
- Jabalpur
- India
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15
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Samidurai A, Das A. Cardiovascular Complications Associated with COVID-19 and Potential Therapeutic~Strategies. Int J Mol Sci 2020; 21:ijms21186790. [PMID: 32947927 PMCID: PMC7554795 DOI: 10.3390/ijms21186790] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023] Open
Abstract
The outbreak of coronavirus disease 2019 (COVID-19), an infectious disease with severe acute respiratory syndrome, has now become a worldwide pandemic. Despite the respiratory complication, COVID-19 is also associated with significant multiple organ dysfunction, including severe cardiac impairment. Emerging evidence reveals a direct interplay between COVID-19 and dire cardiovascular complications, including myocardial injury, heart failure, heart attack, myocarditis, arrhythmias as well as blood clots, which are accompanied with elevated risk and adverse outcome among infected patients, even sudden death. The proposed pathophysiological mechanisms of myocardial impairment include invasion of SARS-CoV-2 virus via angiotensin-converting enzyme 2 to cardiovascular cells/tissue, which leads to endothelial inflammation and dysfunction, de-stabilization of vulnerable atherosclerotic plaques, stent thrombosis, cardiac stress due to diminish oxygen supply and cardiac muscle damage, and myocardial infarction. Several promising therapeutics are under investigation to the overall prognosis of COVID-19 patients with high risk of cardiovascular impairment, nevertheless to date, none have shown proven clinical efficacy. In this comprehensive review, we aimed to highlight the current integrated therapeutic approaches for COVID-19 and we summarized the potential therapeutic options, currently under clinical trials, with their mechanisms of action and associated adverse cardiac events in highly infectious COVID-19 patients.
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Affiliation(s)
| | - Anindita Das
- Correspondence: ; Tel.: +1-804-628-5519; Fax: +1-804-828-8700
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16
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Bartok E, Hartmann G. Immune Sensing Mechanisms that Discriminate Self from Altered Self and Foreign Nucleic Acids. Immunity 2020; 53:54-77. [PMID: 32668228 PMCID: PMC7359798 DOI: 10.1016/j.immuni.2020.06.014] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/19/2022]
Abstract
All lifeforms have developed highly sophisticated systems equipped to detect altered self and non-self nucleic acids (NA). In vertebrates, NA-sensing receptors safeguard the integrity of the organism by detecting pathogens, dyshomeostasis and damage, and inducing appropriate responses to eliminate pathogens and reconstitute homeostasis. Effector mechanisms include i) immune signaling, ii) restriction of NA functions such as inhibition of mRNA translation, and iii) cell death pathways. An appropriate effector response is necessary for host defense, but dysregulated NA-sensing can lead to devastating autoimmune and autoinflammatory disease. Their inherent biochemical similarity renders the reliable distinction between self NA under homeostatic conditions and altered or exogenous NA particularly challenging. In this review, we provide an overview of recent progress in our understanding of the closely coordinated and regulated network of innate immune receptors, restriction factors, and nucleases to effectively respond to pathogens and maintain host integrity.
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Affiliation(s)
- Eva Bartok
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Gunther Hartmann
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
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17
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Abstract
The coronavirus disease 19 (COVID-19) is a highly transmittable and pathogenic viral infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which emerged in Wuhan, China and spread around the world. Genomic analysis revealed that SARS-CoV-2 is phylogenetically related to severe acute respiratory syndrome-like (SARS-like) bat viruses, therefore bats could be the possible primary reservoir. The intermediate source of origin and transfer to humans is not known, however, the rapid human to human transfer has been confirmed widely. There is no clinically approved antiviral drug or vaccine available to be used against COVID-19. However, few broad-spectrum antiviral drugs have been evaluated against COVID-19 in clinical trials, resulted in clinical recovery. In the current review, we summarize and comparatively analyze the emergence and pathogenicity of COVID-19 infection and previous human coronaviruses severe acute respiratory syndrome coronavirus (SARS-CoV) and middle east respiratory syndrome coronavirus (MERS-CoV). We also discuss the approaches for developing effective vaccines and therapeutic combinations to cope with this viral outbreak.
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Affiliation(s)
- Muhammad Adnan Shereen
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China.,State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, PR China
| | - Suliman Khan
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Abeer Kazmi
- College of Life Sciences, Wuhan University, Wuhan, PR China
| | - Nadia Bashir
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Rabeea Siddique
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
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18
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Shereen MA, Khan S, Kazmi A, Bashir N, Siddique R. COVID-19 infection: Origin, transmission, and characteristics of human coronaviruses. J Adv Res 2020; 24:91-98. [PMID: 32257431 PMCID: PMC7113610 DOI: 10.1016/j.jare.2020.03.005] [Citation(s) in RCA: 1549] [Impact Index Per Article: 387.3] [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: 03/15/2020] [Accepted: 03/15/2020] [Indexed: 02/06/2023] Open
Abstract
The coronavirus disease 19 (COVID-19) is a highly transmittable and pathogenic viral infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which emerged in Wuhan, China and spread around the world. Genomic analysis revealed that SARS-CoV-2 is phylogenetically related to severe acute respiratory syndrome-like (SARS-like) bat viruses, therefore bats could be the possible primary reservoir. The intermediate source of origin and transfer to humans is not known, however, the rapid human to human transfer has been confirmed widely. There is no clinically approved antiviral drug or vaccine available to be used against COVID-19. However, few broad-spectrum antiviral drugs have been evaluated against COVID-19 in clinical trials, resulted in clinical recovery. In the current review, we summarize and comparatively analyze the emergence and pathogenicity of COVID-19 infection and previous human coronaviruses severe acute respiratory syndrome coronavirus (SARS-CoV) and middle east respiratory syndrome coronavirus (MERS-CoV). We also discuss the approaches for developing effective vaccines and therapeutic combinations to cope with this viral outbreak.
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Affiliation(s)
- Muhammad Adnan Shereen
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, PR China
| | - Suliman Khan
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Abeer Kazmi
- College of Life Sciences, Wuhan University, Wuhan, PR China
| | - Nadia Bashir
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Rabeea Siddique
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
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19
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Hamid S, Mir MY, Rohela GK. Novel coronavirus disease (COVID-19): a pandemic (epidemiology, pathogenesis and potential therapeutics). New Microbes New Infect 2020; 35:100679. [PMID: 32322401 PMCID: PMC7171518 DOI: 10.1016/j.nmni.2020.100679] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [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: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 12/14/2022] Open
Abstract
The coronavirus disease (COVID-19) is highly pathogenic viral infection caused by SARS-CoV-2. Currently, COVID-19 has caused global health concern. It is assumed that COVID-19 has zoonotic origin based on the large number of infected people who were exposed to the wet market in Wuhan City, China. The phylogenetic analysis has revealed that SARS-CoV-2 has significant sequence similarity with severe acute respiratory syndrome-like (SARS-like) bat viruses, thus bats could be primary possible reservoir. The intermediate host and there subsequent transfer is not known yet, although human to human transfer is widely confirmed. The transmission of COVID-19 infection from one person to another resulted in the isolation of patients who were subsequently given a variety of treatments. To monitor the current outbreak, robust steps have been taken around the globe to reduce the transmission of COVID-19 infection particularly banning international and domestic flights, inducting lockdowns in vulnerable areas, social distancing etc. No clinically approved antiviral drug or vaccine against COVID-19 is reported yet. However, in clinical trials, few broad-spectrum antiviral drugs were evaluated against COVID-19 infection which resulted in clinical recovery. In this article emergence and pathogenicity of COVID-19 infection along with potential therapeutic strategies are analyzed to combat the COVID-19 pandemic.
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Affiliation(s)
- Saima Hamid
- Centre of Research for Development, Department of Environmental Sciences,University of Kashmir, Hazratbal, Srinagar 190 006, Jammu and Kashmir, India
| | - Mohammad Yaseen Mir
- Centre of Research for Development, Department of Environmental Sciences,University of Kashmir, Hazratbal, Srinagar 190 006, Jammu and Kashmir, India
| | - Gulab Khan Rohela
- Biotechnology Section, Moriculture Division, Central Sericultural Research & Training Institute, Central Silk Board, Ministry of Textiles, Government of India, Pampore 192 121, Jammu and Kashmir, India
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