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Freppel W, Silva LA, Stapleford KA, Herrero LJ. Pathogenicity and virulence of chikungunya virus. Virulence 2024; 15:2396484. [PMID: 39193780 PMCID: PMC11370967 DOI: 10.1080/21505594.2024.2396484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 08/09/2024] [Accepted: 08/14/2024] [Indexed: 08/29/2024] Open
Abstract
Chikungunya virus (CHIKV) is a mosquito-transmitted, RNA virus that causes an often-severe musculoskeletal illness characterized by fever, joint pain, and a range of debilitating symptoms. The virus has re-emerged as a global health threat in recent decades, spreading from its origin in Africa across Asia and the Americas, leading to widespread outbreaks impacting millions of people. Despite more than 50 years of research into the pathogenesis of CHIKV, there is still no curative treatment available. Current management of CHIKV infections primarily involves providing supportive care to alleviate symptoms and improve the patient's quality of life. Given the ongoing threat of CHIKV, there is an urgent need to better understand its pathogenesis. This understanding is crucial for deciphering the mechanisms underlying the disease and for developing effective strategies for both prevention and management. This review aims to provide a comprehensive overview of CHIKV and its pathogenesis, shedding light on the complex interactions of viral genetics, host factors, immune responses, and vector-related factors. By exploring these intricate connections, the review seeks to contribute to the knowledge base surrounding CHIKV, offering insights that may ultimately lead to more effective prevention and management strategies for this re-emerging global health threat.
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Affiliation(s)
- Wesley Freppel
- Institute for Biomedicine and Glycomics, Gold Coast Campus, Griffith University, Southport, Australia
| | - Laurie A. Silva
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Kenneth A. Stapleford
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA
| | - Lara J. Herrero
- Institute for Biomedicine and Glycomics, Gold Coast Campus, Griffith University, Southport, Australia
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2
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Zhu J, Liu G, Sayyad Z, Goins CM, Stauffer SR, Gack MU. ISGylation of the SARS-CoV-2 N protein by HERC5 impedes N oligomerization and thereby viral RNA synthesis. J Virol 2024; 98:e0086924. [PMID: 39194248 PMCID: PMC11406920 DOI: 10.1128/jvi.00869-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 07/20/2024] [Indexed: 08/29/2024] Open
Abstract
Interferon (IFN)-stimulated gene 15 (ISG15), a ubiquitin-like protein, is covalently conjugated to host immune proteins such as MDA5 and IRF3 in a process called ISGylation, thereby promoting type I IFN induction to limit the replication of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, whether SARS-CoV-2 proteins can be directly targeted for ISGylation remains elusive. In this study, we identified the nucleocapsid (N) protein of SARS-CoV-2 as a major substrate of ISGylation catalyzed by the host E3 ligase HERC5; however, N ISGylation is readily removed through deISGylation by the papain-like protease (PLpro) activity of NSP3. Mass spectrometry analysis identified that the N protein undergoes ISGylation at four lysine residues (K266, K355, K387, and K388), and mutational analysis of these sites in the context of a SARS-CoV-2 replicon (N-4KR) abolished N ISGylation and alleviated ISGylation-mediated inhibition of viral RNA synthesis. Furthermore, our results indicated that HERC5 targets preferentially phosphorylated N protein for ISGylation to regulate its oligomeric assembly. These findings reveal a novel mechanism by which the host ISGylation machinery directly targets SARS-CoV-2 proteins to restrict viral replication and illuminate how an intricate interplay of host (HERC5) and viral (PLpro) enzymes coordinates viral protein ISGylation and thereby regulates virus replication.IMPORTANCEThe role of protein ISGylation in regulating host cellular processes has been studied extensively; however, how ISG15 conjugation influences the activity of viral proteins, particularly coronaviral proteins, is largely unknown. Our study uncovered that the nucleocapsid (N) protein of SARS-CoV-2 is ISGylated by the HERC5 ISGylation machinery and that this modification impedes the functional assembly of N into oligomers ultimately inhibiting viral RNA synthesis. This antiviral restriction mechanism is antagonized by the PLpro deISGylation activity of SARS-CoV-2 NSP3. This study deepens our understanding of SARS-CoV-2 protein regulation by posttranslational modifications and may open new avenues for designing antiviral strategies for COVID-19.
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Affiliation(s)
- Junji Zhu
- Florida Research and Innovation Center, Cleveland Clinic, Port St. Lucie, Florida, USA
| | - GuanQun Liu
- Florida Research and Innovation Center, Cleveland Clinic, Port St. Lucie, Florida, USA
- Department of Microbiology & Immunology, McGill University, Montreal, Quebec, Canada
| | - Zuberwasim Sayyad
- Florida Research and Innovation Center, Cleveland Clinic, Port St. Lucie, Florida, USA
| | - Christopher M Goins
- Center for Therapeutics Discovery, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Shaun R Stauffer
- Center for Therapeutics Discovery, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Michaela U Gack
- Florida Research and Innovation Center, Cleveland Clinic, Port St. Lucie, Florida, USA
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Zhu J, Liu G, Goins CM, Stauffer SR, Gack MU. ISGylation of the SARS-CoV-2 N protein by HERC5 impedes N oligomerization and thereby viral RNA synthesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.15.594393. [PMID: 39149229 PMCID: PMC11326284 DOI: 10.1101/2024.05.15.594393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Interferon (IFN)-stimulated gene 15 (ISG15), a ubiquitin-like protein, is covalently conjugated to host (immune) proteins such as MDA5 and IRF3 in a process called ISGylation, thereby limiting the replication of Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, whether SARS-CoV-2 proteins can be directly targeted for ISGylation remains elusive. In this study, we identified the nucleocapsid (N) protein of SARS-CoV-2 as a major substrate of ISGylation catalyzed by the host E3 ligase HERC5; however, N ISGylation is readily removed through de-ISGylation by the papain-like protease (PLpro) activity of NSP3. Mass spectrometry analysis identified that the N protein undergoes ISGylation at four lysine residues (K266, K355, K387 and K388), and mutational analysis of these sites in the context of a SARS-CoV-2 replicon (N-4KR) abolished N ISGylation and alleviated ISGylation-mediated inhibition of viral RNA synthesis. Furthermore, our results indicated that HERC5 targets preferentially phosphorylated N protein for ISGylation to regulate its oligomeric assembly. These findings reveal a novel mechanism by which the host ISGylation machinery directly targets SARS-CoV-2 proteins to restrict viral replication and illuminate how an intricate interplay of host (HERC5) and viral (PLpro) enzymes coordinates viral protein ISGylation and thereby regulates virus replication.
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Affiliation(s)
- Junji Zhu
- Florida Research and Innovation Center, Cleveland Clinic, Port St. Lucie, FL 34987, USA
| | - GuanQun Liu
- Florida Research and Innovation Center, Cleveland Clinic, Port St. Lucie, FL 34987, USA
- Department of Microbiology & Immunology, McGill University, Montreal, QC H3A 2B4, Canada
| | - Christopher M. Goins
- Center for Therapeutics Discovery, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Shaun R. Stauffer
- Center for Therapeutics Discovery, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Michaela U. Gack
- Florida Research and Innovation Center, Cleveland Clinic, Port St. Lucie, FL 34987, USA
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Chu L, Qian L, Chen Y, Duan S, Ding M, Sun W, Meng W, Zhu J, Wang Q, Hao H, Wang C, Cui S. HERC5-catalyzed ISGylation potentiates cGAS-mediated innate immunity. Cell Rep 2024; 43:113870. [PMID: 38421872 DOI: 10.1016/j.celrep.2024.113870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/29/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024] Open
Abstract
The cytosolic DNA sensor cyclic GMP-AMP synthase (cGAS) is essential to elicit type I interferon cascade response; thus, the activity of cGAS must be strictly regulated to boost the antiviral innate immunity. Here, we report that cGAS is responsible for the DNA-induced ISG15 conjugation system. The E3 HERC5 catalyzes the ISGylation of cytoplasmic cGAS at lysine 21, 187, 219, and 458, whereas Ubl carboxy-terminal hydrolase 18 removes the ISGylation of cGAS. The interaction of cGAS and HERC5 depends on the cGAS C-terminal domain and the RRC1-4 and RRC1-5 domains of HERC5. Mechanically, HERC5-catalyzed ISGylation promotes DNA-induced cGAS oligomerization and enhances cGAS enzymatic activity. Deficiency of ISGylation attenuates the downstream inflammatory gene expression induced by the cGAS-STING axis and the antiviral ability in mouse and human cells. Mice deficient in Isg15 or Herc6 are more vulnerable to herpes simplex virus 1 infection. Collectively, our study shows a positive feedback regulation of the cGAS-mediated innate immune pathway by ISGylation.
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Affiliation(s)
- Lei Chu
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Li Qian
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Yu Chen
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Shengnan Duan
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Ming Ding
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Wu Sun
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Wei Meng
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Juanjuan Zhu
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Quanyi Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Haiping Hao
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China
| | - Chen Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China.
| | - Shufang Cui
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Jiangning District, Nanjing 211198, China.
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Lin C, Kuffour EO, Li T, Gertzen CGW, Kaiser J, Luedde T, König R, Gohlke H, Münk C. The ISG15-Protease USP18 Is a Pleiotropic Enhancer of HIV-1 Replication. Viruses 2024; 16:485. [PMID: 38675828 PMCID: PMC11053637 DOI: 10.3390/v16040485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
The innate immune response to viruses is formed in part by interferon (IFN)-induced restriction factors, including ISG15, p21, and SAMHD1. IFN production can be blocked by the ISG15-specific protease USP18. HIV-1 has evolved to circumvent host immune surveillance. This mechanism might involve USP18. In our recent studies, we demonstrate that HIV-1 infection induces USP18, which dramatically enhances HIV-1 replication by abrogating the antiviral function of p21. USP18 downregulates p21 by accumulating misfolded dominant negative p53, which inactivates wild-type p53 transactivation, leading to the upregulation of key enzymes involved in de novo dNTP biosynthesis pathways and inactivated SAMHD1. Despite the USP18-mediated increase in HIV-1 DNA in infected cells, it is intriguing to note that the cGAS-STING-mediated sensing of the viral DNA is abrogated. Indeed, the expression of USP18 or knockout of ISG15 inhibits the sensing of HIV-1. We demonstrate that STING is ISGylated at residues K224, K236, K289, K347, K338, and K370. The inhibition of STING K289-linked ISGylation suppresses its oligomerization and IFN induction. We propose that human USP18 is a novel factor that potentially contributes in multiple ways to HIV-1 replication.
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Affiliation(s)
- Chaohui Lin
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Edmund Osei Kuffour
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Taolan Li
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Christoph G. W. Gertzen
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.G.W.G.); (J.K.); (H.G.)
| | - Jesko Kaiser
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.G.W.G.); (J.K.); (H.G.)
| | - Tom Luedde
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Renate König
- Host-Pathogen Interactions, Paul-Ehrlich-Institut, 63225 Langen, Germany;
| | - Holger Gohlke
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.G.W.G.); (J.K.); (H.G.)
- Institute of Bio- and Geosciences (IBG-4: Bioinformatics), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Carsten Münk
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
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6
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Espada CE, da Rocha EL, Ricciardi-Jorge T, dos Santos AA, Soares ZG, Malaquias G, Patrício DO, Gonzalez Kozlova E, dos Santos PF, Bordignon J, Sanford TJ, Fajardo T, Sweeney TR, Báfica A, Mansur DS. ISG15/USP18/STAT2 is a molecular hub regulating IFN I-mediated control of Dengue and Zika virus replication. Front Immunol 2024; 15:1331731. [PMID: 38384473 PMCID: PMC10879325 DOI: 10.3389/fimmu.2024.1331731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024] Open
Abstract
The establishment of a virus infection is the result of the pathogen's ability to replicate in a hostile environment generated by the host's immune system. Here, we found that ISG15 restricts Dengue and Zika viruses' replication through the stabilization of its binding partner USP18. ISG15 expression was necessary to control DV replication driven by both autocrine and paracrine type one interferon (IFN-I) signaling. Moreover, USP18 competes with NS5-mediated STAT2 degradation, a major mechanism for establishment of flavivirus infection. Strikingly, reconstitution of USP18 in ISG15-deficient cells was sufficient to restore the STAT2's stability and restrict virus growth, suggesting that the IFNAR-mediated ISG15 activity is also antiviral. Our results add a novel layer of complexity in the virus/host interaction interface and suggest that NS5 has a narrow window of opportunity to degrade STAT2, therefore suppressing host's IFN-I mediated response and promoting virus replication.
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Affiliation(s)
- Constanza Eleonora Espada
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Edroaldo Lummertz da Rocha
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Taissa Ricciardi-Jorge
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Adara Aurea dos Santos
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Zamira Guerra Soares
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Greicy Malaquias
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Daniel Oliveira Patrício
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Edgar Gonzalez Kozlova
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Paula Fernandes dos Santos
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Instituto Carlos Chagas (ICC)/Fiocruz-PR, Curitiba, Brazil
| | - Thomas J. Sanford
- Division of Virology, Department of Pathology, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Teodoro Fajardo
- Division of Virology, Department of Pathology, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Trevor R. Sweeney
- Division of Virology, Department of Pathology, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
- Viral Gene Expression Group, The Pirbright Institute, Guildford, United Kingdom
| | - André Báfica
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Daniel Santos Mansur
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Álvarez E, Falqui M, Sin L, McGrail JP, Perdiguero B, Coloma R, Marcos-Villar L, Tárrega C, Esteban M, Gómez CE, Guerra S. Unveiling the Multifaceted Roles of ISG15: From Immunomodulation to Therapeutic Frontiers. Vaccines (Basel) 2024; 12:153. [PMID: 38400136 PMCID: PMC10891536 DOI: 10.3390/vaccines12020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
The Interferon Stimulated Gene 15 (ISG15), a unique Ubiquitin-like (Ubl) modifier exclusive to vertebrates, plays a crucial role in the immune system. Primarily induced by interferon (IFN) type I, ISG15 functions through diverse mechanisms: (i) covalent protein modification (ISGylation); (ii) non-covalent intracellular action; and (iii) exerting extracellular cytokine activity. These various roles highlight its versatility in influencing numerous cellular pathways, encompassing DNA damage response, autophagy, antiviral response, and cancer-related processes, among others. The well-established antiviral effects of ISGylation contrast with its intriguing dual role in cancer, exhibiting both suppressive and promoting effects depending on the tumour type. The multifaceted functions of ISG15 extend beyond intracellular processes to extracellular cytokine signalling, influencing immune response, chemotaxis, and anti-tumour effects. Moreover, ISG15 emerges as a promising adjuvant in vaccine development, enhancing immune responses against viral antigens and demonstrating efficacy in cancer models. As a therapeutic target in cancer treatment, ISG15 exhibits a double-edged nature, promoting or suppressing oncogenesis depending on the tumour context. This review aims to contribute to future studies exploring the role of ISG15 in immune modulation and cancer therapy, potentially paving the way for the development of novel therapeutic interventions, vaccine development, and precision medicine.
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Affiliation(s)
- Enrique Álvarez
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
| | - Michela Falqui
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Laura Sin
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Joseph Patrick McGrail
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Beatriz Perdiguero
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Rocío Coloma
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Laura Marcos-Villar
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Céline Tárrega
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Mariano Esteban
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
| | - Carmen Elena Gómez
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Susana Guerra
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Sarkar L, Liu G, Gack MU. ISG15: its roles in SARS-CoV-2 and other viral infections. Trends Microbiol 2023; 31:1262-1275. [PMID: 37573184 PMCID: PMC10840963 DOI: 10.1016/j.tim.2023.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 08/14/2023]
Abstract
Interferon (IFN)-stimulated gene 15 (ISG15), a ubiquitin-like pleiotropic protein and one of the most abundant ISGs, has been studied extensively; however, its roles in SARS-CoV-2 and other viral infections have just begun to be elucidated. Emerging evidence suggests that ISG15 - either in its conjugated or unconjugated 'free' form - acts both intracellularly and extracellularly, and exerts anti- or pro-viral effects. To counteract ISG15's antiviral roles, viruses have evolved sophisticated tactics. Here, we discuss recent advances in ISG15's physiological functions as a post-translational modifier or 'cytokine-like' molecule during SARS-CoV-2 and other viral infections. Furthermore, we highlight the detailed mechanisms viruses use to block ISG15-dependent antiviral defenses. A comprehensive understanding of ISG15 biology in the context of virus infection may spur new therapeutic approaches for a range of viral infectious diseases.
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Affiliation(s)
- Lucky Sarkar
- Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, FL, USA
| | - GuanQun Liu
- Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, FL, USA
| | - Michaela U Gack
- Cleveland Clinic Florida Research and Innovation Center, Port St. Lucie, FL, USA.
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9
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Sarkar R, Patra U, Mukherjee A, Mitra S, Komoto S, Chawla-Sarkar M. Rotavirus circumvents the antiviral effects of protein ISGylation via proteasomal degradation of Ube1L. Cell Signal 2023; 112:110891. [PMID: 37722521 DOI: 10.1016/j.cellsig.2023.110891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/10/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Among the ramified cellular responses elicited in response to pathogenic stimuli, upregulation and covalent conjugation of an Ubiquitin-like modifier ISG15 to lysine residues of target proteins (ISGylation) through sequential action of three enzymes E1 (Ube1L), E2 (Ube2L6) and E3 (Herc5) have emerged as an important regulatory facet governing innate immunity against numerous viral infections. In the present study, we investigated the interplay between host ISGylation system and Rotavirus (RV). We observed that RV infection upregulates the expression of free ISG15 but prevents protein ISGylation. Analysing the expression of ISGylation machinery components revealed that RV infection results in steady depletion of Ube1L protein with the progression of infection. Indeed, restoration of Ube1L expression caused induction in protein ISGylation during RV infection. Subsequent investigation revealed that ectopic expression of RV non-structural protein 5 (NSP5) fosters proteolytic ubiquitylation of Ube1L, thereby depleting it in an ubiquitin-proteasome-dependent manner. Moreover, pan-Cullin inhibition also abrogates proteolytic ubiquitylation and rescued depleted Ube1L in RV-NSP5 expressing cells, suggesting the involvement of host cellular Cullin RING Ligases (CRLs) in proteasomal degradation of Ube1L during RV-SA11 infection. Reciprocal co-immunoprecipitation analyses substantiated a molecular association between Ube1L and RV-NSP5 during infection scenario and also under ectopically overexpressed condition independent of intermediate RNA scaffold and RV-NSP5 hyperphosphorylation. Interestingly, clonal overexpression of Ube1L reduced expression of RV proteins and RV infectivity, which are restored in ISG15 silenced cells, suggesting that Ube1L is a crucial anti-viral host cellular determinant that inhibits RV infection by promoting the formation of ISG15 conjugates.
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Affiliation(s)
- Rakesh Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Upayan Patra
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Arpita Mukherjee
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Suvrotoa Mitra
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Satoshi Komoto
- Department of Virology and Parasitology, School of Medicine, Fujita Health University, Aichi, Japan
| | - Mamta Chawla-Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India.
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10
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Noval MG, Spector SN, Bartnicki E, Izzo F, Narula N, Yeung ST, Damani-Yokota P, Dewan MZ, Mezzano V, Rodriguez-Rodriguez BA, Loomis C, Khanna KM, Stapleford KA. MAVS signaling is required for preventing persistent chikungunya heart infection and chronic vascular tissue inflammation. Nat Commun 2023; 14:4668. [PMID: 37537212 PMCID: PMC10400619 DOI: 10.1038/s41467-023-40047-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 07/05/2023] [Indexed: 08/05/2023] Open
Abstract
Chikungunya virus (CHIKV) infection has been associated with severe cardiac manifestations, yet, how CHIKV infection leads to heart disease remains unknown. Here, we leveraged both mouse models and human primary cardiac cells to define the mechanisms of CHIKV heart infection. Using an immunocompetent mouse model of CHIKV infection as well as human primary cardiac cells, we demonstrate that CHIKV directly infects and actively replicates in cardiac fibroblasts. In immunocompetent mice, CHIKV is cleared from cardiac tissue without significant damage through the induction of a local type I interferon response from both infected and non-infected cardiac cells. Using mice deficient in major innate immunity signaling components, we found that signaling through the mitochondrial antiviral-signaling protein (MAVS) is required for viral clearance from the heart. In the absence of MAVS signaling, persistent infection leads to focal myocarditis and vasculitis of the large vessels attached to the base of the heart. Large vessel vasculitis was observed for up to 60 days post infection, suggesting CHIKV can lead to vascular inflammation and potential long-lasting cardiovascular complications. This study provides a model of CHIKV cardiac infection and mechanistic insight into CHIKV-induced heart disease, underscoring the importance of monitoring cardiac function in patients with CHIKV infections.
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Affiliation(s)
- Maria G Noval
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA.
| | - Sophie N Spector
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA
| | - Eric Bartnicki
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA
| | - Franco Izzo
- New York Genome Center, New York, NY, USA
- Division of Hematology and Medical Oncology, Department of Medicine and Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Navneet Narula
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Stephen T Yeung
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA
| | - Payal Damani-Yokota
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA
| | - M Zahidunnabi Dewan
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Valeria Mezzano
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | | | - Cynthia Loomis
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
- Division of Advanced Research Technologies, New York University Grossman School of Medicine, New York, NY, USA
| | - Kamal M Khanna
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA
- Perlmutter Cancer Center, New York University Grossman School of Medicine, New York, NY, USA
| | - Kenneth A Stapleford
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, USA.
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11
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Abstract
Our understanding of the ubiquitin code has greatly evolved from conventional E1, E2 and E3 enzymes that modify Lys residues on specific substrates with a single type of ubiquitin chain to more complex processes that regulate and mediate ubiquitylation. In this Review, we discuss recently discovered endogenous mechanisms and unprecedented pathways by which pathogens rewrite the ubiquitin code to promote infection. These processes include unconventional ubiquitin modifications involving ester linkages with proteins, lipids and sugars, or ubiquitylation through a phosphoribosyl bridge involving Arg42 of ubiquitin. We also introduce the enzymatic pathways that write and reverse these modifications, such as the papain-like proteases of severe acute respiratory syndrome coronavirus (SARS-CoV) and SARS-CoV-2. Furthermore, structural studies have revealed that the ultimate functions of ubiquitin are mediated not simply by straightforward recognition by ubiquitin-binding domains. Instead, elaborate multivalent interactions between ubiquitylated targets or ubiquitin chains and their readers (for example, the proteasome, the MLL1 complex or DOT1L) can elicit conformational changes that regulate protein degradation or transcription. The newly discovered mechanisms provide opportunities for innovative therapeutic interventions for diseases such as cancer and infectious diseases.
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Affiliation(s)
- Ivan Dikic
- Institute of Biochemistry II, Faculty of Medicine, Goethe University, Frankfurt, Germany.
- Buchmann Institute for Molecular Life Sciences, Goethe University, Frankfurt, Germany.
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12
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Niu W, Zhang T, Ma L. Correlation analysis between immune-related genes and cell infiltration revealed prostate cancer immunotherapy biomarkers linked to T cells gamma delta. Sci Rep 2023; 13:2459. [PMID: 36774376 PMCID: PMC9922294 DOI: 10.1038/s41598-023-28475-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 01/19/2023] [Indexed: 02/13/2023] Open
Abstract
Prostate cancer (PCa) is a urological malignancy with poor prognosis. Immune-related genes are associated with immune infiltration in prostate cancer, but their role in immunogenic PCa is less well understood. We assessed the infiltration patterns of 22 immune cells in PCa and the relationship of immune-related differentially expressed genes (IDEGs) with them. The 87 IDEGs are involved in the interaction between the extracellular matrix and the tumor microenvironment. The model, including seven IDEGs (SLPI, DES, IAPP, NPY, ISG15, PLA2G2A, and HLA-DMB), showed a good predictive power. The SLPI expression is positively correlated with the infiltration level of T cells gamma delta. In addition, PCa has high infiltration levels in Macrophages M1 (18.07%) and Dendritic cells activated (17.64%). The correlation analysis between IDEGs and immune cell infiltration suggested that PCa immunotherapy biomarkers may be closely related to T cells gamma delta.
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Affiliation(s)
- Wenkang Niu
- College of Life Science, Shihezi University, Shihezi, Xinjiang, China
| | - Tingting Zhang
- College of Life Science, Shihezi University, Shihezi, Xinjiang, China.
| | - Lei Ma
- College of Life Science, Shihezi University, Shihezi, Xinjiang, China.
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13
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Suzuki Y. Interferon-induced restriction of Chikungunya virus infection. Antiviral Res 2023; 210:105487. [PMID: 36657882 DOI: 10.1016/j.antiviral.2022.105487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022]
Abstract
Chikungunya virus (CHIKV) is an enveloped RNA virus that causes Chikungunya fever (CHIKF), which is transmitted to humans through the bite of infected Aedes mosquitos. Although CHIKVF had been regarded as an endemic disease in limited regions of Africa and Asia, the recent global reemergence of CHIKV heightened awareness of this infectious disease, and CHIKV infection is currently considered an increasing threat to public health. However, no specific drug or licensed vaccine is available for CHIKV infection. As seen in other RNA virus infections, CHIKV triggers the interferon (IFN) response that plays a central role in host defense against pathogens. Experimental evidence has demonstrated that control of CHIVK replication by the IFN response is achieved by antiviral effector molecules called interferon-stimulated genes (ISGs), whose expressions are upregulated by IFN stimulation. This review details the molecular basis of the IFN-mediated suppression of CHIKV, particularly the ISGs restricting CHIKV replication.
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Affiliation(s)
- Youichi Suzuki
- Department of Microbiology and Infection Control, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan.
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14
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Huang L, Cheng Y, Han S, Liu M, Yu Q, Wei H, He J, Li P. Identification of ISG15 in golden pompano, Trachinotus ovatus, and its role in virus and bacteria infections. FISH & SHELLFISH IMMUNOLOGY 2023; 132:108481. [PMID: 36566833 DOI: 10.1016/j.fsi.2022.108481] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/25/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Interferon (IFN)-stimulated gene product 15 (ISG15) is a ubiquitin-like protein critical for the control of microbial infections. Golden pompano, Trachinotus ovatus is one of the precious marine economic fish in the southern coast of China, always suffering from viruses, bacteria, and parasite infections. To date, the roles of golden pompano genes involved in viral and bacterial infections, especially IFN-related genes remained largely unknown. To identify the interferon system genes of golden pompano and explore their function, in this study, the ISG15 homolog (ToISG15) was cloned from golden pompano, and its role in response to grouper iridovirus (SGIV), nervous necrosis virus (NNV), and Aeromonas hydrophila infection was investigated. The whole ORF of ToISG15 was composed of 465 bp and encoded a polypeptide of 154 amino acids with different identity with the known ISG15 homologs from other fish species. Two conserved ubiquitin-like (UBL) domains and an Ub-conjugation domain (LRGG) were found in ToISG15 sequence. Expression analysis showed that ToISG15 was located mainly in the cytoplasm of golden pompano cells, and dramatically induced following SGIV, Aeromonas hydrophila, or poly I:C treatment, but little change was observed when NNV infection. Overexpression of ToISG15 in vitro significantly inhibited the replication of SGIV and NNV. Interestingly, ToISG15 possessed the ability to restrain the growth of Aeromonas hydrophila. Furthermore, To-ISG15 overexpression enhanced the expression of IFNc, IFNh, IRF3, IRF7, and viperin genes as well as, to a lesser extent, the IL-6 gene. Taken together, our results demonstrated the antiviral and antibacterial effect of To-ISG15, shedding light on the evolutionary conservation of ISG15 in the immune response to microbial infection.
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Affiliation(s)
- Lin Huang
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China; China-ASEAN Modern Fishery Industry Technology Transfer Demonstration Center, Guangxi Academy of Sciences, Nanning, China
| | - Yuan Cheng
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China
| | - Shuyu Han
- Guangxi Fisheries Technology Extension Station, Nanning, China
| | - Mingzhu Liu
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China; China-ASEAN Modern Fishery Industry Technology Transfer Demonstration Center, Guangxi Academy of Sciences, Nanning, China
| | - Qing Yu
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China; China-ASEAN Modern Fishery Industry Technology Transfer Demonstration Center, Guangxi Academy of Sciences, Nanning, China
| | - Hongling Wei
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China; China-ASEAN Modern Fishery Industry Technology Transfer Demonstration Center, Guangxi Academy of Sciences, Nanning, China
| | - Jinzhao He
- Guangxi Fisheries Technology Extension Station, Nanning, China.
| | - Pengfei Li
- Guangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Engineering Research Center for Fishery Major Diseases Control and Efficient Healthy Breeding Industrial Technology (GERCFT), Guangxi Academy of Sciences, Nanning, China; China-ASEAN Modern Fishery Industry Technology Transfer Demonstration Center, Guangxi Academy of Sciences, Nanning, China.
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15
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Skidmore AM, Bradfute SB. The life cycle of the alphaviruses: From an antiviral perspective. Antiviral Res 2023; 209:105476. [PMID: 36436722 PMCID: PMC9840710 DOI: 10.1016/j.antiviral.2022.105476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
The alphaviruses are a widely distributed group of positive-sense, single stranded, RNA viruses. These viruses are largely arthropod-borne and can be found on all populated continents. These viruses cause significant human disease, and recently have begun to spread into new populations, such as the expansion of Chikungunya virus into southern Europe and the Caribbean, where it has established itself as endemic. The study of alphaviruses is an active and expanding field, due to their impacts on human health, their effects on agriculture, and the threat that some pose as potential agents of biological warfare and terrorism. In this systematic review we will summarize both historic knowledge in the field as well as recently published data that has potential to shift current theories in how alphaviruses are able to function. This review is comprehensive, covering all parts of the alphaviral life cycle as well as a brief overview of their pathology and the current state of research in regards to vaccines and therapeutics for alphaviral disease.
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Affiliation(s)
- Andrew M Skidmore
- Center for Global Health, Department of Internal Medicine, University of New Mexico Health Sciences Center, 915 Camino de Salud, IDTC Room 3245, Albuquerque, NM, 87131, USA.
| | - Steven B Bradfute
- Center for Global Health, Department of Internal Medicine, University of New Mexico Health Sciences Center, 915 Camino de Salud, IDTC Room 3330A, Albuquerque, NM, 87131, USA.
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16
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Geng T, Yang D, Lin T, Cahoon JG, Wang P. UBXN3B Controls Immunopathogenesis of Arthritogenic Alphaviruses by Maintaining Hematopoietic Homeostasis. mBio 2022; 13:e0268722. [PMID: 36377866 PMCID: PMC9765034 DOI: 10.1128/mbio.02687-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022] Open
Abstract
Ubiquitin regulatory X domain-containing proteins (UBXN) might be involved in diverse cellular processes. However, their in vivo physiological functions remain largely elusive. We recently showed that UBXN3B positively regulated stimulator-of-interferon-genes (STING)-mediated innate immune responses to DNA viruses. Herein, we reported the essential role of UBXN3B in the control of infection and immunopathogenesis of two arthritogenic RNA viruses, Chikungunya (CHIKV) and O'nyong'nyong (ONNV) viruses. Ubxn3b deficient (Ubxn3b-/-) mice presented higher viral loads, more severe foot swelling and immune infiltrates, and slower clearance of viruses and resolution of inflammation than the Ubxn3b+/+ littermates. While the serum cytokine levels were intact, the virus-specific immunoglobulin G and neutralizing antibody levels were lower in the Ubxn3b-/- mice. The Ubxn3b-/- mice had more neutrophils and macrophages, but much fewer B cells in the ipsilateral feet. Of note, this immune dysregulation was also observed in the spleens and blood of uninfected Ubxn3b-/- mice. UBXN3B restricted CHIKV replication in a cell-intrinsic manner but independent of type I IFN signaling. These results demonstrated a dual role of UBXN3B in the maintenance of immune homeostasis and control of RNA virus replication. IMPORTANCE The human genome encodes 13 ubiquitin regulatory X (UBX) domain-containing proteins (UBXN) that might participate in diverse cellular processes. However, their in vivo physiological functions remain largely elusive. Herein, we reported an essential role of UBXN3B in the control of infection and immunopathogenesis of arthritogenic alphaviruses, including Chikungunya virus (CHIKV), which causes acute and chronic crippling arthralgia, long-term neurological disorders, and poses a significant public health problem in the tropical and subtropical regions worldwide. However, there are no approved vaccines or specific antiviral drugs. This was partly due to a poor understanding of the protective and detrimental immune responses elicited by CHIKV. We showed that UBXN3B was critical for the control of CHIKV replication in a cell-intrinsic manner in the acute phase and persistent immunopathogenesis in the post-viremic stage. Mechanistically, UBXN3B was essential for the maintenance of hematopoietic homeostasis during viral infection and in steady-state.
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Affiliation(s)
- Tingting Geng
- Department of Immunology, School of Medicine, the University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Duomeng Yang
- Department of Immunology, School of Medicine, the University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Tao Lin
- Department of Immunology, School of Medicine, the University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Jason G. Cahoon
- Department of Immunology, School of Medicine, the University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Penghua Wang
- Department of Immunology, School of Medicine, the University of Connecticut Health Center, Farmington, Connecticut, USA
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17
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Free ISG15 inhibits Pseudorabies virus infection by positively regulating type I IFN signaling. PLoS Pathog 2022; 18:e1010921. [DOI: 10.1371/journal.ppat.1010921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/10/2022] [Accepted: 10/07/2022] [Indexed: 11/12/2022] Open
Abstract
Interferon-stimulated gene 15 (ISG15) is strongly upregulated during viral infections and exerts pro-viral or antiviral actions. While many viruses combat host antiviral defenses by limiting ISG expression, PRV infection notably increases expression of ISG15. However, studies on the viral strategies to regulate ISG15-mediated antiviral responses are limited. Here, we demonstrate that PRV-induced free ISG15 and conjugated proteins accumulation require viral gene expression. Conjugation inhibition assays showed that ISG15 imposes its antiviral effects via unconjugated (free) ISG15 and restricts the viral release. Knockout of ISG15 in PK15 cells interferes with IFN-β production by blocking IRF3 activation and promotes PRV replication. Mechanistically, ISG15 facilitates IFNα-mediated antiviral activity against PRV by accelerating the activation and nuclear translocation of STAT1 and STAT2. Furthermore, ISG15 facilitated STAT1/STAT2/IRF9 (ISGF3) formation and ISGF3-induced IFN-stimulated response elements (ISRE) activity for efficient gene transcription by directly interacting with STAT2. Significantly, ISG15 knockout mice displayed enhanced susceptibility to PRV, as evidenced by increased mortality and viral loads, as well as more severe pathology caused by excessive production of the inflammatory cytokines. Our studies establish the importance of free ISG15 in IFNα-induced antiviral immunity and in the control of viral infections.
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18
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Free ISG15 Inhibits the Replication of Peste des Petits Ruminants Virus by Breaking the Interaction of Nucleoprotein and Phosphoprotein. Microbiol Spectr 2022; 10:e0103122. [PMID: 36036587 PMCID: PMC9603952 DOI: 10.1128/spectrum.01031-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Peste des petits ruminants virus (PPRV) causes a highly contagious disease in small ruminants and severe economic losses in developing countries. PPRV infection can stimulate high levels of interferon (IFN) and many IFN-stimulated genes (ISGs), such as ISG15, which may play a key role in the process of viral infection. However, the role of ISG15 in PPRV infection and replication has not yet been reported. In this study, we found ISG15 expression to be significantly upregulated after PPRV infection of caprine endometrial epithelial cells (EECs), and ISG15 inhibits the proliferation of PPRV. Further analysis showed that free ISG15 could inhibit PPRV proliferation. Moreover, ISG15 does not affect the binding, entry, and transcription but does suppress the replication of PPRV. A detailed analysis revealed that ISG15 interacts and colocalizes with both viral N and P proteins and that its interactive regions are all located in the N-terminal domain. Further studies showed that ISG15 can competitively interact with N and P proteins and significantly interfere with their binding. Finally, through the construction of the C-terminal mutants of ISG15 with different lengths, it was found that amino acids (aa) 77 to 101 play a key role in inhibiting the binding of N and P proteins and that interaction with the P protein disappears after the deletion of 77 to 101 aa. The present study revealed a novel mechanism of ISG15 in disrupting the activity of the N0-P complex to inhibit viral replication. IMPORTANCE PPRV, a widespread and fatal disease of small ruminants, is one of the most devastating animal diseases in Africa, the Middle East, and Asia, causing severe economic losses. IFNs play an important role as a component of natural immunity against pathogens, yet the role of ISG15, an IFN-stimulated gene, in protecting against PPRV infection is currently unknown. We demonstrated, for the first time, that free ISG15 inhibits PPRV proliferation by disrupting the activity of the N0-P complex, a finding that has not been reported in other viruses. Our results provide important insights that can further understand the pathogenesis and innate immune mechanisms of PPRV.
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19
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TMEΜ45B Interacts with Sindbis Virus Nsp1 and Nsp4 and Inhibits Viral Replication. J Virol 2022; 96:e0091922. [PMID: 35938871 PMCID: PMC9472651 DOI: 10.1128/jvi.00919-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Alphavirus infection induces the expression of type I interferons, which inhibit the viral replication by upregulating the expression of interferon-stimulated genes (ISGs). Identification and mechanistic studies of the antiviral ISGs help to better understand how the host controls viral infection and help to better understand the viral replication process. Here, we report that the ISG product TMEM45B inhibits the replication of Sindbis virus (SINV). TMEM45B is a transmembrane protein that was detected mainly in the trans-Golgi network, endosomes, and lysosomes but not obviously at the plasma membrane or endoplasmic reticulum. TMEM45B interacted with the viral nonstructural proteins Nsp1 and Nsp4 and inhibited the translation and promoted the degradation of SINV RNA. TMEM45B overexpression rendered the intracellular membrane-associated viral RNA sensitive to RNase treatment. In line with these results, the formation of cytopathic vacuoles (CPVs) was dramatically diminished in TMEM45B-expressing cells. TMEM45B also interacted with Nsp1 and Nsp4 of chikungunya virus (CHIKV), suggesting that it may also inhibit the replication of other alphaviruses. These findings identified TMEM45B as an antiviral factor against alphaviruses and help to better understand the process of the viral genome replication. IMPORTANCE Alphaviruses are positive-stranded RNA viruses with more than 30 members. Infection with Old World alphaviruses, which comprise some important human pathogens such as chikungunya virus and Ross River virus, rarely results in fatal diseases but can lead to high morbidity in humans. Infection with New World alphaviruses usually causes serious encephalitis but low morbidity in humans. Alphavirus infection induces the expression of type I interferons, which subsequently upregulate hundreds of interferon-stimulated genes. Identification and characterization of host antiviral factors help to better understand how the viruses can establish effective infection. Here, we identified TMEM45B as a novel interferon-stimulated antiviral factor against Sindbis virus, a prototype alphavirus. TMEM45B interacted with viral proteins Nsp1 and Nsp4, interfered with the interaction between Nsp1 and Nsp4, and inhibited the viral replication. These findings provide insights into the detailed process of the viral replication and help to better understand the virus-host interactions.
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20
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N-Linked Glycans Shape Skin Immune Responses during Arthritis and Myositis after Intradermal Infection with Ross River Virus. J Virol 2022; 96:e0099922. [PMID: 36000846 PMCID: PMC9472629 DOI: 10.1128/jvi.00999-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Arthritogenic alphaviruses are mosquito-borne arboviruses that include several re-emerging human pathogens, including the chikungunya (CHIKV), Ross River (RRV), Mayaro (MAYV), and o'nyong-nyong (ONNV) virus. Arboviruses are transmitted via a mosquito bite to the skin. Herein, we describe intradermal RRV infection in a mouse model that replicates the arthritis and myositis seen in humans with Ross River virus disease (RRVD). We show that skin infection with RRV results in the recruitment of inflammatory monocytes and neutrophils, which together with dendritic cells migrate to draining lymph nodes (LN) of the skin. Neutrophils and monocytes are productively infected and traffic virus from the skin to LN. We show that viral envelope N-linked glycosylation is a key determinant of skin immune responses and disease severity. RRV grown in mammalian cells elicited robust early antiviral responses in the skin, while RRV grown in mosquito cells stimulated poorer early antiviral responses. We used glycan mass spectrometry to characterize the glycan profile of mosquito and mammalian cell-derived RRV, showing deglycosylation of the RRV E2 glycoprotein is associated with curtailed skin immune responses and reduced disease following intradermal infection. Altogether, our findings demonstrate skin infection with an arthritogenic alphavirus leads to musculoskeletal disease and envelope glycoprotein glycosylation shapes disease outcome. IMPORTANCE Arthritogenic alphaviruses are transmitted via mosquito bites through the skin, potentially causing debilitating diseases. Our understanding of how viral infection starts in the skin and how virus systemically disseminates to cause disease remains limited. Intradermal arbovirus infection described herein results in musculoskeletal pathology, which is dependent on viral envelope N-linked glycosylation. As such, intradermal infection route provides new insights into how arboviruses cause disease and could be extended to future investigations of skin immune responses following infection with other re-emerging arboviruses.
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21
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Interferon-Stimulated Gene 15 Knockout in Mice Impairs IFNα-Mediated Antiviral Activity. Viruses 2022; 14:v14091862. [PMID: 36146669 PMCID: PMC9502845 DOI: 10.3390/v14091862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/19/2022] [Accepted: 08/19/2022] [Indexed: 11/25/2022] Open
Abstract
Type I interferon (IFN) plays an important role in the host defense against viral infection by inducing expression of interferon-stimulated genes (ISGs). In a previous study, we found that porcine interferon-stimulated gene 15 (ISG15) exhibited antiviral activity against PRV in vitro. To further investigate the antiviral function of ISG15 in vivo, we utilized ISG15 knockout (ISG15-/-) mice in this study. Here, we demonstrate that ISG15-/- mice were highly susceptible to PRV infection in vivo, as evidenced by a considerably reduced survival rate, enhanced viral replication and severe pathological lesions. However, we observed no significant difference between female and male infected WT and ISG15-/- mice. Moreover, ISG15-/- mice displayed attenuated antiviral protection as a result of considerably reduced expression of IFNβ and relevant ISGs during PRV replication. Furthermore, excessive production of proinflammatory cytokines may be closely related to encephalitis and pneumonia. In further studies, we found that the enhanced sensitivity to PRV infection in ISG15-/- mice might be caused by reduced phosphorylation of STAT1 and STAT2, thereby inhibiting type I IFN-mediated antiviral activity. Based on these findings, we conclude that ISG15 is essential for host type I IFN-mediated antiviral response.
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22
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Inhibitors of Deubiquitinating Enzymes Interfere with the SARS-CoV-2 Papain-like Protease and Block Virus Replication In Vitro. Viruses 2022; 14:v14071404. [PMID: 35891385 PMCID: PMC9324251 DOI: 10.3390/v14071404] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/24/2022] [Accepted: 06/24/2022] [Indexed: 02/01/2023] Open
Abstract
The ubiquitin proteasome system (UPS), particularly its deubiquitinating enzymes (DUBs), play a key role in the replication cycle of coronaviruses. The SARS-CoV-2 papain-like protease (Plpro) is known to process the viral polyproteins to form the replicase transcriptase complex and to counteract the host viral response. Recently, it was shown that this viral protease can also act as a deubiquitinating enzyme. In this study, we demonstrate that certain DUB-Inhibitors (DIs) interfere with SARS-CoV-2 replication. The DIs PR-619 and HBX41108 restrict SARS-CoV-2 in both Vero B4 and human Calu-3 lung cells where cells were infected with a Multiplicity of Infection (MOI) of 0.02. An in vitro protease assay using recombinant Plpro and Amido-4-methylcoumarin (AMC)-conjugated substrate revealed that PR-619 and HBX41108 are able to block the protease at concentrations where the interventions restricted virus replication. In contrast, DIs that do not inhibit Plpro had no influence on virus replication, which indicated that the protease might be at least one major target. Future vertical studies that would gain more insights into the mechanisms of how DUBs effect the replication of SARS-CoV-2 will further validate them as a potential therapeutic target.
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23
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Duque-Correa MA, Goulding D, Rodgers FH, Gillis JA, Cormie C, Rawlinson KA, Bancroft AJ, Bennett HM, Lotkowska ME, Reid AJ, Speak AO, Scott P, Redshaw N, Tolley C, McCarthy C, Brandt C, Sharpe C, Ridley C, Moya JG, Carneiro CM, Starborg T, Hayes KS, Holroyd N, Sanders M, Thornton DJ, Grencis RK, Berriman M. Defining the early stages of intestinal colonisation by whipworms. Nat Commun 2022; 13:1725. [PMID: 35365634 PMCID: PMC8976045 DOI: 10.1038/s41467-022-29334-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 03/08/2022] [Indexed: 01/08/2023] Open
Abstract
Whipworms are large metazoan parasites that inhabit multi-intracellular epithelial tunnels in the large intestine of their hosts, causing chronic disease in humans and other mammals. How first-stage larvae invade host epithelia and establish infection remains unclear. Here we investigate early infection events using both Trichuris muris infections of mice and murine caecaloids, the first in-vitro system for whipworm infection and organoid model for live helminths. We show that larvae degrade mucus layers to access epithelial cells. In early syncytial tunnels, larvae are completely intracellular, woven through multiple live dividing cells. Using single-cell RNA sequencing of infected mouse caecum, we reveal that progression of infection results in cell damage and an expansion of enterocytes expressing of Isg15, potentially instigating the host immune response to the whipworm and tissue repair. Our results unravel intestinal epithelium invasion by whipworms and reveal specific host-parasite interactions that allow the whipworm to establish its multi-intracellular niche. Whipworms are large parasites causing chronic disease in humans and other mammals. Here, the authors show how larvae create tunnels inside the gut lining and reveal the early host response to infection via Isg15 in mice and murine caecaloids.
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Affiliation(s)
- María A Duque-Correa
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK. .,Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, CB2 0AW, UK.
| | - David Goulding
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Faye H Rodgers
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK.,Mogrify Ltd, 25 Cambridge Science Park, Milton Road, Cambridge, CB4 0FW, UK
| | - J Andrew Gillis
- Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
| | - Claire Cormie
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK.,Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, CB2 0AW, UK
| | - Kate A Rawlinson
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Allison J Bancroft
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Trust Centre for Cell Matrix Research and Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Hayley M Bennett
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK.,Genentech, 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Magda E Lotkowska
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Adam J Reid
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK.,Wellcome/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, CB2 1QN, UK
| | - Anneliese O Speak
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Paul Scott
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Nicholas Redshaw
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Charlotte Tolley
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Catherine McCarthy
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Cordelia Brandt
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Catherine Sharpe
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Trust Centre for Cell Matrix Research and Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK.,InstilBio, UMIC Bio-Incubator, Manchester, M13 9XX, UK
| | - Caroline Ridley
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Trust Centre for Cell Matrix Research and Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK.,Prime Global Medical Communications, Knutsford, WA16 8GP, UK
| | - Judit Gali Moya
- Faculty of Biology, University of Barcelona, Barcelona, 08028, Spain
| | - Claudia M Carneiro
- Immunopathology Laboratory, NUPEB, Federal University of Ouro Preto, Campus Universitario Morro do Cruzeiro, Ouro Preto, MG, 35400-000, Brazil
| | - Tobias Starborg
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Trust Centre for Cell Matrix Research and Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK.,Rosalind Franklin Institute, Harwell Campus, Didcot, OX11 0FA, UK
| | - Kelly S Hayes
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Trust Centre for Cell Matrix Research and Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Nancy Holroyd
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - Mandy Sanders
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK
| | - David J Thornton
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Trust Centre for Cell Matrix Research and Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Richard K Grencis
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Trust Centre for Cell Matrix Research and Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Matthew Berriman
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, CB10 1SA, UK.
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24
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Kafai NM, Diamond MS, Fox JM. Distinct Cellular Tropism and Immune Responses to Alphavirus Infection. Annu Rev Immunol 2022; 40:615-649. [PMID: 35134315 DOI: 10.1146/annurev-immunol-101220-014952] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Alphaviruses are emerging and reemerging viruses that cause disease syndromes ranging from incapacitating arthritis to potentially fatal encephalitis. While infection by arthritogenic and encephalitic alphaviruses results in distinct clinical manifestations, both virus groups induce robust innate and adaptive immune responses. However, differences in cellular tropism, type I interferon induction, immune cell recruitment, and B and T cell responses result in differential disease progression and outcome. In this review, we discuss aspects of immune responses that contribute to protective or pathogenic outcomes after alphavirus infection. Expected final online publication date for the Annual Review of Immunology, Volume 40 is April 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Natasha M Kafai
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA; , .,Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Michael S Diamond
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA; , .,Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, Missouri, USA.,Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, Missouri, USA.,Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Julie M Fox
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA;
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25
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Locke MC, Fox LE, Dunlap BF, Young AR, Monte K, Lenschow DJ. Interferon Alpha, but Not Interferon Beta, Acts Early To Control Chronic Chikungunya Virus Pathogenesis. J Virol 2022; 96:e0114321. [PMID: 34668781 PMCID: PMC8754211 DOI: 10.1128/jvi.01143-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/11/2021] [Indexed: 11/20/2022] Open
Abstract
Chikungunya virus (CHIKV) is an arthritogenic alphavirus that causes both debilitating acute and chronic disease. Previous work has shown that type I interferons (IFNs) play a critical role in limiting CHIKV pathogenesis and that interferon alpha (IFN-α) and interferon beta (IFN-β) control acute CHIKV infection by distinct mechanisms. However, the role of type I IFNs, especially specific subtypes, during chronic CHIKV disease is unclear. To address this gap in knowledge, we evaluated chronic CHIKV pathogenesis in mice lacking IFN-α or IFN-β. We found that IFN-α was the dominant subtype that controls chronic disease. Despite detecting a varying type I IFN response throughout the course of disease, IFN-α acts within the first few days of infection to control the levels of persistent CHIKV RNA. In addition, using a novel CHIKV-3'-Cre tdTomato reporter system that fate maps CHIKV-infected cells, we showed that IFN-α limits the number of cells that survive CHIKV at sites of dissemination, particularly dermal fibroblasts and immune cells. Though myofibers play a significant role in CHIKV disease, they were not impacted by the loss of IFN-α. Our studies highlight that IFN-α and IFN-β play divergent roles during chronic CHIKV disease through events that occur early in infection and that not all cell types are equally dependent on type I IFNs for restricting viral persistence. IMPORTANCE Chikungunya virus (CHIKV) is a reemerging global pathogen with no effective vaccine or antiviral treatment for acute or chronic disease, and the mechanisms underlying chronic disease manifestations remain poorly defined. The significance of our research is in defining IFN-α, but not IFN-β, as an important host regulator of chronic CHIKV pathogenesis that acts within the first 48 hours of infection to limit persistent viral RNA and the number of cells that survive CHIKV infection 1 month post-infection. Loss of IFN-α had a greater impact on immune cells and dermal fibroblasts than myofibers, highlighting the need to delineate cell-specific responses to type I IFNs. Altogether, our work demonstrates that very early events of acute CHIKV infection influence chronic disease. Continued efforts to delineate early host-pathogen interactions may help stratify patients who are at risk for developing chronic CHIKV symptoms and identify therapeutics that may prevent progression to chronic disease altogether.
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Affiliation(s)
- Marissa C. Locke
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Lindsey E. Fox
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Bria F. Dunlap
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Alissa R. Young
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Kristen Monte
- Department of Medicine, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Deborah J. Lenschow
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, Missouri, USA
- Department of Medicine, Washington University School of Medicine, Saint Louis, Missouri, USA
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26
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Zhang M, Li J, Yan H, Huang J, Wang F, Liu T, Zeng L, Zhou F. ISGylation in Innate Antiviral Immunity and Pathogen Defense Responses: A Review. Front Cell Dev Biol 2021; 9:788410. [PMID: 34901029 PMCID: PMC8662993 DOI: 10.3389/fcell.2021.788410] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 10/22/2021] [Indexed: 12/22/2022] Open
Abstract
The interferon-stimulating gene 15 (ISG15) protein is a ubiquitin-like protein induced by interferons or pathogens. ISG15 can exist in free form or covalently bind to the target protein through an enzymatic cascade reaction, which is called ISGylation. ISGylation has been found to play an important role in the innate immune responses induced by type I interferon, and is, thus, critical for the defense of host cells against RNA, DNA, and retroviruses. Through covalent binding with the host and viral target proteins, ISG15 inhibits the release of viral particles, hinder viral replication, and regulates the incubation period of viruses, thereby exerting strong antiviral effects. The SARS-CoV-2 papain-like protease, a virus-encoded deubiquitinating enzyme, has demonstrated activity on both ubiquitin and ISG15 chain conjugations, thus playing a suppressive role against the host antiviral innate immune response. Here we review the recent research progress in understanding ISG15-type ubiquitin-like modifications, with an emphasis on the underlying molecular mechanisms. We provide comprehensive references for further studies on the role of ISG15 in antiviral immunity, which may enable development of new antiviral drugs.
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Affiliation(s)
- Mengdi Zhang
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Jingxian Li
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Haiyan Yan
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Jun Huang
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Fangwei Wang
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ting Liu
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Linghui Zeng
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Fangfang Zhou
- Institute of Biology and Medical Sciences, Soochow University, Suzhou, China
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27
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Roles of ESCRT proteins (ALIX and CHIMP4A) and their interplay with ISG15 during tick-borne flavivirus infection. J Virol 2021; 96:e0162421. [PMID: 34851141 PMCID: PMC8826915 DOI: 10.1128/jvi.01624-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Flaviviruses are usually transmitted to humans via mosquito or tick bites. During infection, virus replication and assembly, whose cellular sites are relatively close, are controlled by virus proteins and a diverse range of host proteins. By siRNA-mediated gene silencing, we showed that ALIX and CHMP4A, two members of the host endosomal sorting complex required for transport (ESCRT) protein machinery, are required during flavivirus infection. Using cell lines expressing subgenomic replicons and replicon virus-like particles, we demonstrated specific roles for ALIX and CHMP4A in viral replication and assembly, respectively. Employing biochemical and imaging methodology, we showed that the ESCRT proteins are recruited by a putative specific late (L) domain motif LYXLA within the NS3 protein of tick-borne flaviviruses. Furthermore, to counteract the recruitment of ESCRT proteins, the host cells may elicit defense mechanisms. We found that ectopic expression of the interferon-stimulated gene 15 (ISG15) or the E3 ISG15-protein ligase (HERC5) reduced virus replication by suppressing the positive effects of ALIX and CHMP4A. Collectively, these results have provided new insights into flavivirus-host cell interactions that function as checkpoints, including the NS3 and the ESCRT proteins, the ISG15 and the ESCRT proteins, at essential stages of the virus life cycle. IMPORTANCE Flaviviruses are important zoonotic viruses with high fatality rates worldwide. Here, we report that during infection, the virus employs members of ESCRT proteins for virus replication and assembly. Among the ESCRT proteins, ALIX acts during virus replication, while CHMP4A is required during virus assembly. Another important ESCRT protein, TSG101, is not required for virus production. The ESCRT, complex, ALIX-CHMP4A, is recruited to NS3 through their interactions with the putative L domain motif of NS3, while CHMP4A is recruited to E. In addition, we demonstrate the antiviral mechanism of ISG15 and HERC5, which degrades ALIX and CHIMP4A, indirectly targets virus infection. In summary, we reveal host-dependency factors supporting flavivirus infection, but these factors may also be targeted by antiviral host effector mechanisms.
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28
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Krishnan R, Jang YS, Kim JO, Oh MJ. Altered expression of immune factors in sevenband grouper, Hyporthodus septemfasciatus following nervous necrosis virus challenge at optimal and suboptimal temperatures. FISH & SHELLFISH IMMUNOLOGY 2021; 119:442-451. [PMID: 34699974 DOI: 10.1016/j.fsi.2021.10.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/24/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
The nervous necrosis virus (NNV) infection is generally observed in aquafarms when the seawater temperature is higher than 24 °C and the fishes seem to be refractory to disease at suboptimal temperatures below 20 °C suggesting a role of thermoregulation in NNV pathogenesis. The present study profiled the temperature-dependent regulation of cytokines (TNF-α, IL-1β and IFN-γ), innate antiviral factors (IFN-1, Mx, ISG-15), adaptive immune factors (CD-4, CD-8, IgM), signaling regulators (SOCS-1, SOCS-3), transcription factors (STAT-1, STAT-3) and microglial and NCC/NK specific cell markers (TMEM-119 and NCCRP-1) during NNV challenge in seven-band grouper, Hyporthodus septemfasciatus. The co-habitation challenge at 17 °C with showed a sustained expression of proinflammatory cytokines and following rechallenge with a dose of 104 TCID50/100μL/fish at optimal temperature, the survivors also exhibited a stable expression of immune factors. The 100% survival following the challenge at sub-optimal (17 °C) and rechallenge at optimal (25 °C) was due to the stable and sustained activation of the immune response. However, at 25 °C, the rechallenge displayed a priming effect with hyperactivation of the immune system evident from the immune gene expression profile. The mortality pattern observed is co-related with the cytokine storm as is evident from the gene expression profile. Whereas, neither of the adaptive immune markers was suggestive of humoral immune response in the 17 °C groups. Also, the data suggest a possible role of NK cell and microglia in mediating antiviral immune response following infection in the brain at different temperatures, where, former is beneficial in restricting viral infection with higher host tolerance.
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Affiliation(s)
- Rahul Krishnan
- Department of Aqualife Medicine, Chonnam National University, Yeosu, Republic of Korea
| | - Yo-Seb Jang
- Department of Aqualife Medicine, Chonnam National University, Yeosu, Republic of Korea
| | - Jong-Oh Kim
- Department of Microbiology, Pukyong National University, Busan, Republic of Korea
| | - Myung-Joo Oh
- Department of Aqualife Medicine, Chonnam National University, Yeosu, Republic of Korea.
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29
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Wani SA, Sahu AR, Khan RIN, Praharaj MR, Saxena S, Rajak KK, Muthuchelvan D, Sahoo A, Mishra B, Singh RK, Mishra BP, Gandham RK. Proteome Modulation in Peripheral Blood Mononuclear Cells of Peste des Petits Ruminants Vaccinated Goats and Sheep. Front Vet Sci 2021; 8:670968. [PMID: 34631844 PMCID: PMC8493254 DOI: 10.3389/fvets.2021.670968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/31/2021] [Indexed: 12/03/2022] Open
Abstract
In the present study, healthy goats and sheep (n = 5) that were confirmed negative for peste des petits ruminants virus (PPRV) antibodies by monoclonal antibody-based competitive ELISA and by serum neutralization test and for PPRV antigen by s-ELISA were vaccinated with Sungri/96. A quantitative study was carried out to compare the proteome of peripheral blood mononuclear cells (PBMCs) of vaccinated goat and sheep [5 days post-vaccination (dpv) and 14 dpv] vs. unvaccinated (0 day) to divulge the alteration in protein expression following vaccination. A total of 232 and 915 proteins were differentially expressed at 5 and 14 dpv, respectively, in goats. Similarly, 167 and 207 proteins were differentially expressed at 5 and 14 dpv, respectively, in sheep. Network generated by Ingenuity Pathway Analysis was “infectious diseases, antimicrobial response, and inflammatory response,” which includes the highest number of focus molecules. The bio functions, cell-mediated immune response, and humoral immune response were highly enriched in goats at 5 dpv and at 14 dpv. At the molecular level, the immune response produced by the PPRV vaccine virus in goats is effectively coordinated and stronger than that in sheep, though the vaccine provides protection from virulent virus challenge in both. The altered expression of certain PBMC proteins especially ISG15 and IRF7 induces marked changes in cellular signaling pathways to coordinate host immune responses.
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Affiliation(s)
- Sajad Ahmad Wani
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India.,College of Pharmacy, Pharmaceutics and Pharmaceutical Chemistry, The Ohio State University, Columbus, OH, United States
| | - Amit Ranjan Sahu
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - Raja Ishaq Nabi Khan
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - Manas Ranjan Praharaj
- Systems Biology Lab, Department of Biotechnology -National Institute of Animal Biotechnology, Hyderabad, India
| | - Shikha Saxena
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - Kaushal Kishor Rajak
- Division of Biological Products, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - Dhanavelu Muthuchelvan
- Division of Virology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Mukteswar, India
| | - Aditya Sahoo
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - Bina Mishra
- Division of Biological Products, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - R K Singh
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - Bishnu Prasad Mishra
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India
| | - Ravi Kumar Gandham
- Division of Veterinary Biotechnology, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Bareilly, India.,Systems Biology Lab, Department of Biotechnology -National Institute of Animal Biotechnology, Hyderabad, India
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30
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Constant LEC, Rajsfus BF, Carneiro PH, Sisnande T, Mohana-Borges R, Allonso D. Overview on Chikungunya Virus Infection: From Epidemiology to State-of-the-Art Experimental Models. Front Microbiol 2021; 12:744164. [PMID: 34675908 PMCID: PMC8524093 DOI: 10.3389/fmicb.2021.744164] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/07/2021] [Indexed: 12/27/2022] Open
Abstract
Chikungunya virus (CHIKV) is currently one of the most relevant arboviruses to public health. It is a member of the Togaviridae family and alphavirus genus and causes an arthritogenic disease known as chikungunya fever (CHIKF). It is characterized by a multifaceted disease, which is distinguished from other arbovirus infections by the intense and debilitating arthralgia that can last for months or years in some individuals. Despite the great social and economic burden caused by CHIKV infection, there is no vaccine or specific antiviral drugs currently available. Recent outbreaks have shown a change in the severity profile of the disease in which atypical and severe manifestation lead to hundreds of deaths, reinforcing the necessity to understand the replication and pathogenesis processes. CHIKF is a complex disease resultant from the infection of a plethora of cell types. Although there are several in vivo models for studying CHIKV infection, none of them reproduces integrally the disease signature observed in humans, which is a challenge for vaccine and drug development. Therefore, understanding the potentials and limitations of the state-of-the-art experimental models is imperative to advance in the field. In this context, the present review outlines the present knowledge on CHIKV epidemiology, replication, pathogenesis, and immunity and also brings a critical perspective on the current in vitro and in vivo state-of-the-art experimental models of CHIKF.
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Affiliation(s)
- Larissa E. C. Constant
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Biotecnologia e Bioengenharia Estrutural, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bia F. Rajsfus
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Biotecnologia e Bioengenharia Estrutural, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pedro H. Carneiro
- Laboratório de Biotecnologia e Bioengenharia Estrutural, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tháyna Sisnande
- Laboratório de Biotecnologia e Bioengenharia Estrutural, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ronaldo Mohana-Borges
- Laboratório de Biotecnologia e Bioengenharia Estrutural, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Diego Allonso
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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31
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Thery F, Martina L, Asselman C, Zhang Y, Vessely M, Repo H, Sedeyn K, Moschonas GD, Bredow C, Teo QW, Zhang J, Leandro K, Eggermont D, De Sutter D, Boucher K, Hochepied T, Festjens N, Callewaert N, Saelens X, Dermaut B, Knobeloch KP, Beling A, Sanyal S, Radoshevich L, Eyckerman S, Impens F. Ring finger protein 213 assembles into a sensor for ISGylated proteins with antimicrobial activity. Nat Commun 2021; 12:5772. [PMID: 34599178 PMCID: PMC8486878 DOI: 10.1038/s41467-021-26061-w] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/14/2021] [Indexed: 12/20/2022] Open
Abstract
ISG15 is an interferon-stimulated, ubiquitin-like protein that can conjugate to substrate proteins (ISGylation) to counteract microbial infection, but the underlying mechanisms remain elusive. Here, we use a virus-like particle trapping technology to identify ISG15-binding proteins and discover Ring Finger Protein 213 (RNF213) as an ISG15 interactor and cellular sensor of ISGylated proteins. RNF213 is a poorly characterized, interferon-induced megaprotein that is frequently mutated in Moyamoya disease, a rare cerebrovascular disorder. We report that interferon induces ISGylation and oligomerization of RNF213 on lipid droplets, where it acts as a sensor for ISGylated proteins. We show that RNF213 has broad antimicrobial activity in vitro and in vivo, counteracting infection with Listeria monocytogenes, herpes simplex virus 1, human respiratory syncytial virus and coxsackievirus B3, and we observe a striking co-localization of RNF213 with intracellular bacteria. Together, our findings provide molecular insights into the ISGylation pathway and reveal RNF213 as a key antimicrobial effector.
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Affiliation(s)
- Fabien Thery
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Lia Martina
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Caroline Asselman
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Yifeng Zhang
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Madeleine Vessely
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Heidi Repo
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Koen Sedeyn
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - George D Moschonas
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Clara Bredow
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biochemistry, Berlin, Germany
| | - Qi Wen Teo
- HKU-Pasteur Research Pole, School of Public Health, University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Jingshu Zhang
- HKU-Pasteur Research Pole, School of Public Health, University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Kevin Leandro
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Denzel Eggermont
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Delphine De Sutter
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Katie Boucher
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- VIB Proteomics Core, VIB, Ghent, Belgium
| | - Tino Hochepied
- VIB Center for Inflammation Research, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Nele Festjens
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Nico Callewaert
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Xavier Saelens
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Bart Dermaut
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Klaus-Peter Knobeloch
- Institute of Neuropathology, Medical Faculty, University of Freiburg, Freiburg, Germany
| | - Antje Beling
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biochemistry, Berlin, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), partner side Berlin, Berlin, Germany
| | - Sumana Sanyal
- HKU-Pasteur Research Pole, School of Public Health, University of Hong Kong, Pok Fu Lam, Hong Kong
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, UK
| | - Lilliana Radoshevich
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
| | - Sven Eyckerman
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.
| | - Francis Impens
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.
- VIB Proteomics Core, VIB, Ghent, Belgium.
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32
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Yan S, Kumari M, Xiao H, Jacobs C, Kochumon S, Jedrychowski M, Chouchani E, Ahmad R, Rosen ED. IRF3 reduces adipose thermogenesis via ISG15-mediated reprogramming of glycolysis. J Clin Invest 2021; 131:144888. [PMID: 33571167 DOI: 10.1172/jci144888] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 02/10/2021] [Indexed: 12/21/2022] Open
Abstract
Adipose thermogenesis is repressed in obesity, reducing the homeostatic capacity to compensate for chronic overnutrition. Inflammation inhibits adipose thermogenesis, but little is known about how this occurs. Here we showed that the innate immune transcription factor IRF3 is a strong repressor of thermogenic gene expression and oxygen consumption in adipocytes. IRF3 achieved this by driving expression of the ubiquitin-like modifier ISG15, which became covalently attached to glycolytic enzymes, thus reducing their function and decreasing lactate production. Lactate repletion was able to restore thermogenic gene expression, even when the IRF3/ISG15 axis was activated. Mice lacking ISG15 phenocopied mice lacking IRF3 in adipocytes, as both had elevated energy expenditure and were resistant to diet-induced obesity. These studies provide a deep mechanistic understanding of how the chronic inflammatory milieu of adipose tissue in obesity prevents thermogenic compensation for overnutrition.
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Affiliation(s)
- Shuai Yan
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Manju Kumari
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.,Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Haopeng Xiao
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher Jacobs
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.,Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
| | - Shihab Kochumon
- Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mark Jedrychowski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Edward Chouchani
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA
| | - Rasheed Ahmad
- Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Evan D Rosen
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
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33
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He M, Ding NZ, He CQ. Novirhabdoviruses versus fish innate immunity: A review. Virus Res 2021; 304:198525. [PMID: 34339774 DOI: 10.1016/j.virusres.2021.198525] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/16/2021] [Accepted: 07/22/2021] [Indexed: 01/23/2023]
Abstract
Novirhabdoviruses belong to the Rhabdoviridae family of RNA viruses. All of the four members are pathogenic for bony fish. Particularly, Infectious hematopoietic necrosis virus (IHNV) and Viral hemorrhagic septicemia virus (VHSV) often cause mass animal deaths and huge economic losses, representing major obstacles to fish farming industry worldwide. The interactions between fish and novirhabdoviruses are becoming better understood. In this review, we will present our current knowledge of fish innate immunity, particularly type I interferon (IFN-I) response, against novirhabdoviral infection, and the evasion strategies exploited by novirhabdoviruses. Members of Toll-like receptors (TLRs) and RIG-I-like receptors (RLRs) appear to be involved in novirhabdovirus surveillance. NF-κB activation and IFN-I induction are primarily triggered for antiviral defense. Autophagy can also be induced by viral glycoprotein (G). Although sensitive to IFN-I, novirhabdoviruses have nucleoprotein (N), matrix protein (M), and non-virion protein (NV) to interfere with host signal transduction and gene expression steps toward antiviral state establishment. Moreover, novirhabdoviruses may exploit some microRNAs for immunosuppression.
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Affiliation(s)
- Mei He
- College of Life Science, Shandong Normal University, Jinan 250014, China
| | - Nai-Zheng Ding
- College of Life Science, Shandong Normal University, Jinan 250014, China.
| | - Cheng-Qiang He
- College of Life Science, Shandong Normal University, Jinan 250014, China.
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34
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Chiang C, Liu G, Gack MU. Viral Evasion of RIG-I-Like Receptor-Mediated Immunity through Dysregulation of Ubiquitination and ISGylation. Viruses 2021; 13:182. [PMID: 33530371 PMCID: PMC7910861 DOI: 10.3390/v13020182] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/15/2022] Open
Abstract
Viral dysregulation or suppression of innate immune responses is a key determinant of virus-induced pathogenesis. Important sensors for the detection of virus infection are the RIG-I-like receptors (RLRs), which, in turn, are antagonized by many RNA viruses and DNA viruses. Among the different escape strategies are viral mechanisms to dysregulate the post-translational modifications (PTMs) that play pivotal roles in RLR regulation. In this review, we present the current knowledge of immune evasion by viral pathogens that manipulate ubiquitin- or ISG15-dependent mechanisms of RLR activation. Key viral strategies to evade RLR signaling include direct targeting of ubiquitin E3 ligases, active deubiquitination using viral deubiquitinating enzymes (DUBs), and the upregulation of cellular DUBs that regulate RLR signaling. Additionally, we summarize emerging new evidence that shows that enzymes of certain coronaviruses such as SARS-CoV-2, the causative agent of the current COVID-19 pandemic, actively deISGylate key molecules in the RLR pathway to escape type I interferon (IFN)-mediated antiviral responses. Finally, we discuss the possibility of targeting virally-encoded proteins that manipulate ubiquitin- or ISG15-mediated innate immune responses for the development of new antivirals and vaccines.
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Affiliation(s)
| | | | - Michaela U. Gack
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA; (C.C.); (G.L.)
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35
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Synthetic Host Defense Peptides Inhibit Venezuelan Equine Encephalitis Virus Replication and the Associated Inflammatory Response. Sci Rep 2020; 10:21491. [PMID: 33293592 PMCID: PMC7722873 DOI: 10.1038/s41598-020-77990-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 10/30/2020] [Indexed: 12/17/2022] Open
Abstract
Venezuelan equine encephalitis virus (VEEV), a New World alphavirus of the Togaviridae family of viruses causes periodic outbreaks of disease in humans and equines. Disease following VEEV infection manifests as a febrile illness with flu-like symptoms, which can progress to encephalitis and cause permanent neurological sequelae in a small number of cases. VEEV is classified as a category B select agent due to ease of aerosolization and high retention of infectivity in the aerosol form. Currently, there are no FDA-approved vaccines or therapeutics available to combat VEEV infection. VEEV infection in vivo is characterized by extensive systemic inflammation that can exacerbate infection by potentially increasing the susceptibility of off-site cells to infection and dissemination of the virus. Hence, a therapeutic targeting both the infection and associated inflammation represents an unmet need. We have previously demonstrated that host defense peptides (HDPs), short peptides that are key components of the innate immune response, exhibit antiviral activity against a multitude of viruses including VEEV. In this study, we designed synthetic peptides derived from indolicidin, a naturally occurring HDP, and tested their efficacy against VEEV. Two candidate synthetic peptides inhibited VEEV replication by approximately 1000-fold and decreased the expression of inflammatory mediators such as IL1α, IL1β, IFNγ, and TNFα at both the gene and protein expression levels. Furthermore, an increase in expression levels of genes involved in chemotaxis of leukocytes and anti-inflammatory genes such as IL1RN was also observed. Overall, we conclude that our synthetic peptides inhibit VEEV replication and the inflammatory burden associated with VEEV infection.
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36
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Cardon T, Ozcan B, Aboulouard S, Kobeissy F, Duhamel M, Rodet F, Fournier I, Salzet M. Epigenetic Studies Revealed a Ghost Proteome in PC1/3 KD Macrophages under Antitumoral Resistance Induced by IL-10. ACS OMEGA 2020; 5:27774-27782. [PMID: 33163760 PMCID: PMC7643081 DOI: 10.1021/acsomega.0c02530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/18/2020] [Indexed: 06/11/2023]
Abstract
Our previous investigation on macrophages has allowed us to show that the inhibition of the enzyme proprotein convertase (PC1/3) controls the activation of macrophages. We demonstrated that PC1/3 knockdown (KD) in macrophages exhibits an increased secretion of proinflammatory and antitumoral factors. In this biological context, we assessed the presence of histone modifications and the presence and contribution of a "ghost proteome" in these macrophages. We identified a set of alternative proteins (AltProts) that have a key role in the regulation of various signaling pathways. In this study, to further investigate the underlying mechanisms involved in the resistance of PC1/3-KD macrophages to anti-inflammatory stimuli, we have conducted a proteomic system biology study to assess the epigenome variation, focusing on histone modifications. Results from our study have indicated the presence of significant variations in histone modifications along with the identification of 28 AltProts, which can be correlated with antitumoral resistance under IL-10 stimulation. These findings highlight a key role of altered epigenome histone modifications in driving resistance and indicate that like the reference proteins, AltProts can have a major impact in the field of epigenetics and regulation of gene expression, as shown in our results.
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Affiliation(s)
- Tristan Cardon
- Inserm,
CHRU Lille, University Lille, U-1192—Laboratoire Protéomique,
Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Lille 59000, France
| | - Bilgehan Ozcan
- Inserm,
CHRU Lille, University Lille, U-1192—Laboratoire Protéomique,
Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Lille 59000, France
| | - Soulaimane Aboulouard
- Inserm,
CHRU Lille, University Lille, U-1192—Laboratoire Protéomique,
Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Lille 59000, France
| | - Firas Kobeissy
- Department
of Psychiatry, McKnight Brain Institute, University of Florida, Gainesville, Florida 32611, United States
| | - Marie Duhamel
- Inserm,
CHRU Lille, University Lille, U-1192—Laboratoire Protéomique,
Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Lille 59000, France
| | - Franck Rodet
- Inserm,
CHRU Lille, University Lille, U-1192—Laboratoire Protéomique,
Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Lille 59000, France
| | - Isabelle Fournier
- Inserm,
CHRU Lille, University Lille, U-1192—Laboratoire Protéomique,
Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Lille 59000, France
- Institut
Universitaire de France, Paris 75000, France
| | - Michel Salzet
- Inserm,
CHRU Lille, University Lille, U-1192—Laboratoire Protéomique,
Réponse Inflammatoire et Spectrométrie de Masse-PRISM, Lille 59000, France
- Institut
Universitaire de France, Paris 75000, France
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37
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Felipe VLJ, Paula A V, Silvio UI. Chikungunya virus infection induces differential inflammatory and antiviral responses in human monocytes and monocyte-derived macrophages. Acta Trop 2020; 211:105619. [PMID: 32634389 DOI: 10.1016/j.actatropica.2020.105619] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/03/2020] [Accepted: 07/03/2020] [Indexed: 01/09/2023]
Abstract
Chikungunya virus (CHIKV) is a zoonotic arthropod-borne virus that has caused several outbreaks in tropical and subtropical areas worldwide during the last 50 years. The virus is known to target different human cell types throughout the course of infection including epithelial and endothelial cells, fibroblasts, primary monocytes and monocyte-derived macrophages (MDMs). The two latter are phagocytic cell populations of the innate immune system which are involved in some aspects of CHIKV pathogenesis. However, monocytes and macrophages also potentially contribute to the control of viral replication through the expression of different pattern recognition receptors sensing viral pathogens and subsequently, inducing an type I interferone (IFN-I)-dependent antiviral immune response. The aim of this study was to determine the modulation of the expression of Toll-like receptors (TLRs), cytokine secretion capabilities and antiviral factor production in monocytes and MDMs following infection with CHIKV. Moreover, we sought to determine the replication kinetics of CHIKV in these two cell populations. We found that the maximum peak of CHIKV replication was observed between 18- and 24-hours post-infection (hpi), while after that the is strongly reduced. Furthermore, CHIKV infection induced the pro-inflammatory cytokine production starting from the first 6 hpi in both monocytes and MDMs, with similar kinetics but different protein levels. In contrast, the kinetics of transcriptional expression of some TLRs were different between both cell types. In addition, IFN-I, 2',5'-oligoadenylate synthetase 1 (OAS1), and double-stranded RNA-activated protein kinase R (PKR) mRNA levels were detected in response to CHIKV infection of monocytes and MDMs, resulting the highest expression levels at 48 hpi. In conclusion, our data provides evidence that CHIKV infection activates the TLR pathways in primary monocytes and MDMs, which play a crucial role in CHIKV pathogenesis and/or host defense, differentially. However, additional studies are required to determine the functional role of TLRs in monocytes and MDMs.
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Affiliation(s)
- Valdés López Juan Felipe
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Velilla Paula A
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
| | - Urcuqui-Inchima Silvio
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
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38
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ISGylation of Hepatitis C Virus NS5A Protein Promotes Viral RNA Replication via Recruitment of Cyclophilin A. J Virol 2020; 94:JVI.00532-20. [PMID: 32727878 DOI: 10.1128/jvi.00532-20] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 07/24/2020] [Indexed: 12/14/2022] Open
Abstract
Interferon-stimulated gene 15 (ISG15) is a ubiquitin-like protein that is covalently conjugated to many substrate proteins in order to modulate their functions; this conjugation is called ISGylation. Several groups reported that the ISGylation of hepatitis C virus (HCV) NS5A protein affects HCV replication. However, the ISG15 conjugation sites on NS5A are not well determined, and it is unclear whether the role of NS5A ISGylation in HCV replication is proviral or antiviral. Here, we investigated the role of NS5A ISGylation in HCV replication by using HCV RNA replicons that encode a mutation at each lysine (Lys) residue of the NS5A protein. Immunoblot analyses revealed that 5 Lys residues (K44, K68, K166, K215, and K308) of the 14 Lys residues within NS5A (genotype 1b, Con1) have the potential to accept ISGylation. We tested the NS5A ISGylation among different HCV genotypes and observed that the NS5A proteins of all of the HCV genotypes accept ISGylation at multiple Lys residues. Using an HCV luciferase reporter replicon assay revealed that residue K308 of NS5A is important for HCV (1b, Con1) RNA replication. We observed that K308, one of the Lys residues for NS5A ISGylation, is located within the binding region of cyclophilin A (CypA), which is the critical host factor for HCV replication. We obtained evidence derived from all of the HCV genotypes suggesting that NS5A ISGylation enhances the interaction between NS5A and CypA. Taken together, these results suggest that NS5A ISGylation functions as a proviral factor and promotes HCV replication via the recruitment of CypA.IMPORTANCE Host cells have evolved host defense machinery (such as innate immunity) to eliminate viral infections. Viruses have evolved several counteracting strategies for achieving an immune escape from host defense machinery, including type I interferons (IFNs) and inflammatory cytokines. ISG15 is an IFN-inducible ubiquitin-like protein that is covalently conjugated to the viral protein via specific Lys residues and suppresses viral functions and viral propagation. Here, we demonstrate that HCV NS5A protein accepts ISG15 conjugation at specific Lys residues and that the HERC5 E3 ligase specifically promotes NS5A ISGylation. We obtained evidence suggesting that NS5A ISGylation facilitates the recruitment of CypA, which is the critical host factor for HCV replication, thereby promoting HCV replication. These findings indicate that E3 ligase HERC5 is a potential therapeutic target for HCV infection. We propose that HCV hijacks an intracellular ISG15 function to escape the host defense machinery in order to establish a persistent infection.
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39
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Held T, Basler M, Knobeloch KP, Groettrup M. Evidence for an involvement of the ubiquitin-like modifier ISG15 in MHC class I antigen presentation. Eur J Immunol 2020; 51:138-150. [PMID: 32686110 DOI: 10.1002/eji.202048646] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/16/2020] [Accepted: 07/14/2020] [Indexed: 12/16/2022]
Abstract
The IFN stimulated gene 15 (ISG15) encodes a 15-kDa ubiquitin-like protein, that is induced by type I IFNs and is conjugated to the bulk of newly synthesized polypeptides at the ribosome. ISG15 functions as an antiviral molecule possibly by being covalently conjugated to viral proteins and disturbing virus particle assembly. Here, we have investigated the effect of ISGylation on degradation and antigen presentation of viral and cellular proteins. ISGylation did not induce proteasomal degradation of bulk ISG15 target proteins neither after overexpressing ISG15 nor after induction by IFN-β. The MHC class I cell surface expression of splenocytes derived from ISG15-deficient mice or mice lacking the catalytic activity of the major de-ISGylating enzyme USP18 was unaltered as compared to WT mice. Fusion of ubiquitin or FAT10 to the long-lived nucleoprotein (NP) of lymphocytic choriomeningitis virus accelerated the proteasomal degradation of NP while fusion to ISG15 did not detectably speed up NP degradation. Nevertheless, MHC-I restricted presentation of two epitopes of NP were markedly enhanced when it was fused to ISG15 similarly to fusion with ubiquitin or FAT10. Thus, we provide evidence that ISG15 can enhance the presentation of antigens on MHC-I most likely by promoting co-translational antigen processing.
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Affiliation(s)
- Tobias Held
- Division of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Michael Basler
- Division of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany.,Biotechnology Institute Thurgau at the University of Konstanz, Kreuzlingen, Switzerland
| | - Klaus-Peter Knobeloch
- Institute of Neuropathology, University of Freiburg, Medical faculty, Freiburg, Germany
| | - Marcus Groettrup
- Division of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany.,Biotechnology Institute Thurgau at the University of Konstanz, Kreuzlingen, Switzerland
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40
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Wang Y, Ren K, Li S, Yang C, Chen L. Interferon stimulated gene 15 promotes Zika virus replication through regulating Jak/STAT and ISGylation pathways. Virus Res 2020; 287:198087. [PMID: 32738280 DOI: 10.1016/j.virusres.2020.198087] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/18/2020] [Accepted: 07/01/2020] [Indexed: 11/17/2022]
Abstract
Zika virus is an emergent arbovirus that has caused a public health emergency in South America. Zika virus infection is known to cause microcephaly and other congenital defects and Guillain-Barré syndrome. Unfortunately no direct antiviral treatments are available at present. IFN-stimulated gene 15 (ISG15) is one of the most upregulated host genes following type I interferon treatment or virus infections. ISG15 has been shown to have antiviral effect on a wide variety of viruses although pro-HCV replication was observed. However, the effect of ISG15 on ZIKV infection is not well defined. In this study, we try to clarify the effect of ISG15 on ZIKV replication and to further dissect the underlying mechanism. Our results indicated that ZIKV infection led to the increased expression of ISG15 in A549, 2fTGH, U5A cells. Overexpression of ISG15 stimulated ZIKV replication although ISG15 did not affect the viral entry. Further studies showed that this proviral effect was mediated through Jak/STAT signaling pathway and was ISGylation-dependent. Taken together, our work demonstrates that ISG15 is an important host factor exploited by ZIKV to facilitate its replication and might serve as a potential target for the development of novel antiviral agents.
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Affiliation(s)
- Yancui Wang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Kai Ren
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Shilin Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Chunhui Yang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China.
| | - Limin Chen
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China; Toronto General Research Institute, University of Toronto, Toronto, Ontario, Canada.
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41
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Gao N, Me R, Dai C, Yu FSX. ISG15 Acts as a Mediator of Innate Immune Response to Pseudomonas aeruginosa Infection in C57BL/6J Mouse Corneas. Invest Ophthalmol Vis Sci 2020; 61:26. [PMID: 32416603 PMCID: PMC7405721 DOI: 10.1167/iovs.61.5.26] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/30/2020] [Indexed: 01/04/2023] Open
Abstract
Purpose IFN-stimulated gene (ISG) 15 is a type 1 IFN-induced protein and known to modify target proteins in a manner similar to ubiquitylation (protein conjugation by ISG15 is termed ISGylation). We sought to determine the role of ISG15 and its underlying mechanisms in corneal innate immune defense against Pseudomonas aeruginosa keratitis. Methods ISG15 expression in cultured human corneal epithelial cells (HCECs) and mouse corneas was determined by PCR and Western blot analysis. Gene knockout mice were used to define the role of ISG15 signaling in controlling the severity of P. aeruginosa keratitis, which was assessed with photographing, clinical scoring, bacterial counting, myeloperoxidase assay, and quantitative PCR determination of cytokine expression. Integrin LFA-1 inhibitor was used to assess its involvement of ISG15 signaling in P. aeruginosa-infected corneas. Results Heat-killed P. aeruginosa induced ISG15 expression in cultured HCECs and accumulation in the conditioned media. Isg15 deficiency accelerated keratitis progress, suppressed IFNγ and CXCL10, and promoted IL-1β while exhibiting no effects on IFNα expression. Moreover, exogenous ISG15 protected the corneas of wild-type mice from P. aeruginosa infection while markedly reducing the severity of P. aeruginosa keratitis in type 1 IFN-receptor knockout mice. Exogenous ISG15 increased bacteriostatic activity of B6 mouse corneal homogenates, and inhibition of LFA-1 exacerbated the severity of and abolished protective effects of ISG15 on P. aeruginosa keratitis. Conclusions Type 1 INF-induced ISG15 regulates the innate immune response and greatly reduces the susceptibility of B6 mouse corneas to P. aeruginosa infection in an LFA-1-dependent manner.
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42
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Chan YH, Teo TH, Utt A, Tan JJ, Amrun SN, Abu Bakar F, Yee WX, Becht E, Lee CYP, Lee B, Rajarethinam R, Newell E, Merits A, Carissimo G, Lum FM, Ng LF. Mutating chikungunya virus non-structural protein produces potent live-attenuated vaccine candidate. EMBO Mol Med 2020; 11:emmm.201810092. [PMID: 31015278 PMCID: PMC6554673 DOI: 10.15252/emmm.201810092] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Currently, there are no commercially available live-attenuated vaccines against chikungunya virus (CHIKV). Here, CHIKVs with mutations in non-structural proteins (nsPs) were investigated for their suitability as attenuated CHIKV vaccines. R532H mutation in nsP1 caused reduced infectivity in mouse tail fibroblasts but an enhanced type-I IFN response compared to WT-CHIKV Adult mice infected with this nsP-mutant exhibited a mild joint phenotype with low-level viremia that rapidly cleared. Mechanistically, ingenuity pathway analyses revealed a tilt in the anti-inflammatory IL-10 versus pro-inflammatory IL-1β and IL-18 balance during CHIKV nsP-mutant infection that modified acute antiviral and cell signaling canonical pathways. Challenging CHIKV nsP-mutant-infected mice with WT-CHIKV or the closely related O'nyong-nyong virus resulted in no detectable viremia, observable joint inflammation, or damage. Challenged mice showed high antibody titers with efficient neutralizing capacity, indicative of immunological memory. Manipulating molecular processes that govern CHIKV replication could lead to plausible vaccine candidates against alphavirus infection.
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Affiliation(s)
- Yi-Hao Chan
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore City, Singapore
| | - Teck-Hui Teo
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,Molecular Microbial Pathogenesis Unit, Department of Cell Biology and Infection, Institute Pasteur, Paris, France
| | - Age Utt
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Jeslin Jl Tan
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Siti Naqiah Amrun
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Farhana Abu Bakar
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore City, Singapore
| | - Wearn-Xin Yee
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Etienne Becht
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Cheryl Yi-Pin Lee
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore.,NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore City, Singapore
| | - Bernett Lee
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | | | - Evan Newell
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Andres Merits
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Guillaume Carissimo
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Fok-Moon Lum
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Lisa Fp Ng
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore .,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore.,Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
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43
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Iglesias-Guimarais V, Ahrends T, de Vries E, Knobeloch KP, Volkov A, Borst J. IFN-Stimulated Gene 15 Is an Alarmin that Boosts the CTL Response via an Innate, NK Cell-Dependent Route. THE JOURNAL OF IMMUNOLOGY 2020; 204:2110-2121. [PMID: 32169846 DOI: 10.4049/jimmunol.1901410] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/01/2020] [Indexed: 12/26/2022]
Abstract
Type I IFN is produced upon infection and tissue damage and induces the expression of many IFN-stimulated genes (ISGs) that encode host-protective proteins. ISG15 is a ubiquitin-like molecule that can be conjugated to proteins but is also released from cells in a free form. Free, extracellular ISG15 is suggested to have an immune-regulatory role, based on disease phenotypes of ISG15-deficient humans and mice. However, the underlying mechanisms by which free ISG15 would act as a "cytokine" are unclear and much debated. We, in this study, demonstrate in a clinically relevant mouse model of therapeutic vaccination that free ISG15 is an alarmin that induces tissue alert, characterized by extracellular matrix remodeling, myeloid cell infiltration, and inflammation. Moreover, free ISG15 is a potent adjuvant for the CTL response. ISG15 produced at the vaccination site promoted the vaccine-specific CTL response by enhancing expansion, short-lived effector and effector/memory differentiation of CD8+ T cells. The function of free ISG15 as an extracellular ligand was demonstrated, because the equivalents in murine ISG15 of 2 aa recently implicated in binding of human ISG15 to LFA-1 in vitro were required for its adjuvant effect in vivo. Moreover, in further agreement with the in vitro findings on human cells, free ISG15 boosted the CTL response in vivo via NK cells in the absence of CD4+ T cell help. Thus, free ISG15 is part of a newly recognized innate route to promote the CTL response.
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Affiliation(s)
- Victoria Iglesias-Guimarais
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands
| | - Tomasz Ahrends
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands
| | - Evert de Vries
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands.,Department of Immunohematology and Blood Transfusion, Leiden University Medical School, 2333 ZA Leiden, the Netherlands.,Oncode Institute, Leiden University Medical School, 2333 ZA Leiden, the Netherlands; and
| | - Klaus-Peter Knobeloch
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Andriy Volkov
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands
| | - Jannie Borst
- Division of Tumor Biology and Immunology, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands; .,Department of Immunohematology and Blood Transfusion, Leiden University Medical School, 2333 ZA Leiden, the Netherlands.,Oncode Institute, Leiden University Medical School, 2333 ZA Leiden, the Netherlands; and
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44
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Kespohl M, Bredow C, Klingel K, Voß M, Paeschke A, Zickler M, Poller W, Kaya Z, Eckstein J, Fechner H, Spranger J, Fähling M, Wirth EK, Radoshevich L, Thery F, Impens F, Berndt N, Knobeloch KP, Beling A. Protein modification with ISG15 blocks coxsackievirus pathology by antiviral and metabolic reprogramming. SCIENCE ADVANCES 2020; 6:eaay1109. [PMID: 32195343 PMCID: PMC7065878 DOI: 10.1126/sciadv.aay1109] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 12/13/2019] [Indexed: 05/10/2023]
Abstract
Protein modification with ISG15 (ISGylation) represents a major type I IFN-induced antimicrobial system. Common mechanisms of action and species-specific aspects of ISGylation, however, are still ill defined and controversial. We used a multiphasic coxsackievirus B3 (CV) infection model with a first wave resulting in hepatic injury of the liver, followed by a second wave culminating in cardiac damage. This study shows that ISGylation sets nonhematopoietic cells into a resistant state, being indispensable for CV control, which is accomplished by synergistic activity of ISG15 on antiviral IFIT1/3 proteins. Concurrent with altered energy demands, ISG15 also adapts liver metabolism during infection. Shotgun proteomics, in combination with metabolic network modeling, revealed that ISG15 increases the oxidative capacity and promotes gluconeogenesis in liver cells. Cells lacking the activity of the ISG15-specific protease USP18 exhibit increased resistance to clinically relevant CV strains, therefore suggesting that stabilizing ISGylation by inhibiting USP18 could be exploited for CV-associated human pathologies.
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Affiliation(s)
- Meike Kespohl
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), partner site Berlin, Germany
| | - Clara Bredow
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
| | - Karin Klingel
- University of Tuebingen, Cardiopathology, Institute for Pathology and Neuropathology, Tuebingen, Germany
| | - Martin Voß
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
| | - Anna Paeschke
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
| | - Martin Zickler
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
| | - Wolfgang Poller
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Clinic for Cardiology, Campus Benjamin Franklin, Berlin, Germany
| | - Ziya Kaya
- Universitätsklinikum Heidelberg, Medizinische Klinik für Innere Medizin III: Kardiologie, Angiologie und Pneumologie, Heidelberg, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), partner site Heidelberg, Germany
| | - Johannes Eckstein
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
| | - Henry Fechner
- Department of Applied Biochemistry, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Joachim Spranger
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Department of Endocrinology, Diabetes and Nutrition, Berlin, Germany
| | - Michael Fähling
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Vegetative Physiology, Berlin, Germany
| | - Eva Katrin Wirth
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Department of Endocrinology, Diabetes and Nutrition, Berlin, Germany
| | - Lilliana Radoshevich
- Department of Microbiology and Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Fabien Thery
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- VIB Center for Medical Biotechnology, Ghent, Belgium
| | - Francis Impens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- VIB Center for Medical Biotechnology, Ghent, Belgium
- VIB Proteomics Core, Ghent, Belgium
| | - Nikolaus Berndt
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute for Computational and Imaging Science in Cardiovascular Medicine, Berlin, Germany
| | | | - Antje Beling
- Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), partner site Berlin, Germany
- Corresponding author.
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45
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Bryden SR, Pingen M, Lefteri DA, Miltenburg J, Delang L, Jacobs S, Abdelnabi R, Neyts J, Pondeville E, Major J, Müller M, Khalid H, Tuplin A, Varjak M, Merits A, Edgar J, Graham GJ, Shams K, McKimmie CS. Pan-viral protection against arboviruses by activating skin macrophages at the inoculation site. Sci Transl Med 2020; 12:eaax2421. [PMID: 31969486 DOI: 10.1126/scitranslmed.aax2421] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 08/16/2019] [Accepted: 12/30/2019] [Indexed: 12/12/2022]
Abstract
Arthropod-borne viruses (arboviruses) are important human pathogens for which there are no specific antiviral medicines. The abundance of genetically distinct arbovirus species, coupled with the unpredictable nature of their outbreaks, has made the development of virus-specific treatments challenging. Instead, we have defined and targeted a key aspect of the host innate immune response to virus at the arthropod bite that is common to all arbovirus infections, potentially circumventing the need for virus-specific therapies. Using mouse models and human skin explants, we identify innate immune responses by dermal macrophages in the skin as a key determinant of disease severity. Post-exposure treatment of the inoculation site by a topical TLR7 agonist suppressed both the local and subsequent systemic course of infection with a variety of arboviruses from the Alphavirus, Flavivirus, and Orthobunyavirus genera. Clinical outcome was improved in mice after infection with a model alphavirus. In the absence of treatment, antiviral interferon expression to virus in the skin was restricted to dermal dendritic cells. In contrast, stimulating the more populous skin-resident macrophages with a TLR7 agonist elicited protective responses in key cellular targets of virus that otherwise proficiently replicated virus. By defining and targeting a key aspect of the innate immune response to virus at the mosquito bite site, we have identified a putative new strategy for limiting disease after infection with a variety of genetically distinct arboviruses.
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Affiliation(s)
- Steven R Bryden
- Virus Host Interaction Team, Leeds Institute of Medical Research, School of Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS9 7TF, UK
- Institute of Infection, Immunology and Inflammation, University of Glasgow, Glasgow G12 8TA, UK
| | - Marieke Pingen
- Virus Host Interaction Team, Leeds Institute of Medical Research, School of Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS9 7TF, UK
- Institute of Infection, Immunology and Inflammation, University of Glasgow, Glasgow G12 8TA, UK
| | - Daniella A Lefteri
- Virus Host Interaction Team, Leeds Institute of Medical Research, School of Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS9 7TF, UK
| | - Janne Miltenburg
- Virus Host Interaction Team, Leeds Institute of Medical Research, School of Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS9 7TF, UK
| | - Leen Delang
- KU Leuven Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, 3000 Leuven, Belgium
| | - Sofie Jacobs
- KU Leuven Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, 3000 Leuven, Belgium
| | - Rana Abdelnabi
- KU Leuven Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, 3000 Leuven, Belgium
| | - Johan Neyts
- KU Leuven Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, 3000 Leuven, Belgium
| | - Emilie Pondeville
- MRC‑University of Glasgow Centre for Virus Research, Glasgow G61 1QH, UK
| | - Jack Major
- Virus Host Interaction Team, Leeds Institute of Medical Research, School of Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS9 7TF, UK
- Institute of Infection, Immunology and Inflammation, University of Glasgow, Glasgow G12 8TA, UK
| | - Marietta Müller
- School of Molecular and Cellular Biology, Faculty of Biological Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Henna Khalid
- School of Molecular and Cellular Biology, Faculty of Biological Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Andrew Tuplin
- School of Molecular and Cellular Biology, Faculty of Biological Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Margus Varjak
- Institute of Infection, Immunology and Inflammation, University of Glasgow, Glasgow G12 8TA, UK
| | - Andres Merits
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Julia Edgar
- Institute of Infection, Immunology and Inflammation, University of Glasgow, Glasgow G12 8TA, UK
| | - Gerard J Graham
- Institute of Infection, Immunology and Inflammation, University of Glasgow, Glasgow G12 8TA, UK
| | - Kave Shams
- Inflammatory Skin Disease Group, Institute of Rheumatic and Musculoskeletal Medicine, School of Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS9 7TF, UK
| | - Clive S McKimmie
- Virus Host Interaction Team, Leeds Institute of Medical Research, School of Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS9 7TF, UK.
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46
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Rogers KJ, Jones-Burrage S, Maury W, Mukhopadhyay S. TF protein of Sindbis virus antagonizes host type I interferon responses in a palmitoylation-dependent manner. Virology 2020; 542:63-70. [PMID: 32056669 DOI: 10.1016/j.virol.2020.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/31/2019] [Accepted: 01/01/2020] [Indexed: 12/15/2022]
Abstract
Sindbis virus (SINV) produces the small membrane protein TF from the 6K gene via a (-1) programmed ribosomal frameshifting. While several groups have shown that TF-deficient virus exhibits reduced virulence, the mechanism(s) by which this occurs remain unknown. Here, we demonstrate a role for TF in antagonizing the host interferon response. Using wild-type and type 1 interferon receptor-deficient mice and primary cells derived from these animals, we show that TF controls the induction of the host interferon response at early times during infection. Loss of TF production leads to elevated interferon and a concurrent reduction in viral loads with a loss of pathogenicity. Palmitoylation of TF has been shown to be important for particle assembly and morphology. We find that palmitoylation of TF also contributes to the ability of TF to antagonize host interferon responses as dysregulated palmitoylation of TF reduces virulence in a manner similar to loss of TF.
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Affiliation(s)
- K J Rogers
- Department of Microbiology and Immunology, University of Iowa, Iowa City, IA, USA
| | - S Jones-Burrage
- Department of Biology, Indiana University, Bloomington, IN, USA
| | - W Maury
- Department of Microbiology and Immunology, University of Iowa, Iowa City, IA, USA
| | - S Mukhopadhyay
- Department of Biology, Indiana University, Bloomington, IN, USA.
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47
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Zhang Y, Thery F, Wu NC, Luhmann EK, Dussurget O, Foecke M, Bredow C, Jiménez-Fernández D, Leandro K, Beling A, Knobeloch KP, Impens F, Cossart P, Radoshevich L. The in vivo ISGylome links ISG15 to metabolic pathways and autophagy upon Listeria monocytogenes infection. Nat Commun 2019; 10:5383. [PMID: 31772204 PMCID: PMC6879477 DOI: 10.1038/s41467-019-13393-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 11/07/2019] [Indexed: 12/28/2022] Open
Abstract
ISG15 is an interferon-stimulated, ubiquitin-like protein, with anti-viral and anti-bacterial activity. Here, we map the endogenous in vivo ISGylome in the liver following Listeria monocytogenes infection by combining murine models of reduced or enhanced ISGylation with quantitative proteomics. Our method identifies 930 ISG15 sites in 434 proteins and also detects changes in the host ubiquitylome. The ISGylated targets are enriched in proteins which alter cellular metabolic processes, including upstream modulators of the catabolic and antibacterial pathway of autophagy. Computational analysis of substrate structures reveals that a number of ISG15 modifications occur at catalytic sites or dimerization interfaces of enzymes. Finally, we demonstrate that animals and cells with enhanced ISGylation have increased basal and infection-induced autophagy through the modification of mTOR, WIPI2, AMBRA1, and RAB7. Taken together, these findings ascribe a role of ISGylation to temporally reprogram organismal metabolism following infection through direct modification of a subset of enzymes in the liver.
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Affiliation(s)
- Yifeng Zhang
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA
| | - Fabien Thery
- Center for Medical Biotechnology, VIB, 9000, Gent, Belgium
- Department for Biomolecular Medicine, Gent University, 9000, Gent, Belgium
| | - Nicholas C Wu
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Emma K Luhmann
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA
| | - Olivier Dussurget
- Institut Pasteur, Unité des Interactions Bactéries-Cellules, Département de Biologie Cellulaire et Infection, 75015, Paris, France
- Inserm, U604, 75015, Paris, France
- National Institute for Agronomic Research (INRA), Unité sous-contrat 2020, 75015, Paris, France
| | - Mariko Foecke
- Institut Pasteur, Unité des Interactions Bactéries-Cellules, Département de Biologie Cellulaire et Infection, 75015, Paris, France
- Inserm, U604, 75015, Paris, France
- National Institute for Agronomic Research (INRA), Unité sous-contrat 2020, 75015, Paris, France
| | - Clara Bredow
- Charité-Universitäts medizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
| | | | - Kevin Leandro
- Center for Medical Biotechnology, VIB, 9000, Gent, Belgium
- Department for Biomolecular Medicine, Gent University, 9000, Gent, Belgium
| | - Antje Beling
- Charité-Universitäts medizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Biochemistry, Berlin, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), Partner Site Berlin, Berlin, Germany
| | - Klaus-Peter Knobeloch
- Institute of Neuropathology, Medical Faculty, University of Freiburg, Freiburg, Germany
| | - Francis Impens
- Center for Medical Biotechnology, VIB, 9000, Gent, Belgium.
- Department for Biomolecular Medicine, Gent University, 9000, Gent, Belgium.
- VIB Proteomics Core, VIB, 9000, Gent, Belgium.
| | - Pascale Cossart
- Institut Pasteur, Unité des Interactions Bactéries-Cellules, Département de Biologie Cellulaire et Infection, 75015, Paris, France.
- Inserm, U604, 75015, Paris, France.
- National Institute for Agronomic Research (INRA), Unité sous-contrat 2020, 75015, Paris, France.
| | - Lilliana Radoshevich
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA.
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48
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Nelemans T, Kikkert M. Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections. Viruses 2019; 11:v11100961. [PMID: 31635238 PMCID: PMC6832425 DOI: 10.3390/v11100961] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 02/07/2023] Open
Abstract
Positive-sense single-stranded RNA (+ssRNA) viruses comprise many (re-)emerging human pathogens that pose a public health problem. Our innate immune system and, in particular, the interferon response form the important first line of defence against these viruses. Given their genetic flexibility, these viruses have therefore developed multiple strategies to evade the innate immune response in order to optimize their replication capacity. Already many molecular mechanisms of innate immune evasion by +ssRNA viruses have been identified. However, research addressing the effect of host innate immune evasion on the pathology caused by viral infections is less prevalent in the literature, though very relevant and interesting. Since interferons have been implicated in inflammatory diseases and immunopathology in addition to their protective role in infection, antagonizing the immune response may have an ambiguous effect on the clinical outcome of the viral disease. Therefore, this review discusses what is currently known about the role of interferons and host immune evasion in the pathogenesis of emerging coronaviruses, alphaviruses and flaviviruses.
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Affiliation(s)
- Tessa Nelemans
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands.
| | - Marjolein Kikkert
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands.
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49
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Li J, Johnson JA, Su H. Ubiquitin and Ubiquitin-like proteins in cardiac disease and protection. Curr Drug Targets 2019; 19:989-1002. [PMID: 26648080 DOI: 10.2174/1389450117666151209114608] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 11/01/2015] [Indexed: 01/10/2023]
Abstract
Post-translational modification represents an important mechanism to regulate protein function in cardiac cells. Ubiquitin (Ub) and ubiquitin-like proteins (UBLs) are a family of protein modifiers that share a certain extent of sequence and structure similarity. Conjugation of Ub or UBLs to target proteins is dynamically regulated by a set of UBL-specific enzymes and modulates the physical and physiological properties of protein substrates. Ub and UBLs control a strikingly wide spectrum of cellular processes and not surprisingly are involved in the development of multiple human diseases including cardiac diseases. Further identification of novel UBL targets will expand our understanding of the functional diversity of UBL pathways in physiology and pathology. Here we review recent findings on the mechanisms, proteome and functions of a subset of UBLs and highlight their potential impacts on the development and progression of various forms of cardiac diseases.
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Affiliation(s)
- Jie Li
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - John A Johnson
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Huabo Su
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, United States
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Valdés López JF, Velilla PA, Urcuqui-Inchima S. Chikungunya Virus and Zika Virus, Two Different Viruses Examined with a Common Aim: Role of Pattern Recognition Receptors on the Inflammatory Response. J Interferon Cytokine Res 2019; 39:507-521. [DOI: 10.1089/jir.2019.0058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
| | - Paula Andrea Velilla
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Silvio Urcuqui-Inchima
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
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