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Pelaez MA, Torti MF, Alvarez De Lauro AE, Marquez AB, Giovannoni F, Damonte EB, García CC. Modulation of the Aryl Hydrocarbon Receptor Signaling Pathway Impacts on Junín Virus Replication. Viruses 2023; 15:v15020369. [PMID: 36851583 PMCID: PMC9967227 DOI: 10.3390/v15020369] [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: 11/22/2022] [Revised: 01/17/2023] [Accepted: 01/20/2023] [Indexed: 01/31/2023] Open
Abstract
Junín virus (JUNV), a member of the family Arenaviridae, is the etiological agent of the Argentine hemorrhagic fever, an endemic disease in the rural region of Argentina lacking a specific chemotherapy. Aryl hydrocarbon receptor (AHR) is expressed in several mammalian tissues and has been indicated as a sensor of ligands from variable sources and a modulator of the cell immune response. Interestingly, recent studies have suggested that the activation or depression of the AHR signaling pathway may play a role in the outcome of diverse human viral infections. In the present report, the effect of the pharmacological modulation of AHR on JUNV in vitro infection was analyzed. An initial microarray screening showed that the AHR pathway was overexpressed in JUNV-infected hepatic cells. Concomitantly, the infection of Vero and Huh-7 cells with the JUNV strains IV4454 and Candid#1 was significantly inhibited in a dose-dependent manner by treatment with CH223191, a specific AHR antagonist, as detected by infectivity assays, real-time RT-PCR and immunofluorescence detection of viral proteins. Furthermore, the pro-viral role of AHR in JUNV infection appears to be independent of the IFN-I pathway. Our findings support the promising perspectives of the pharmacological modulation of AHR as a potential target for the control of AHF.
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Affiliation(s)
- Miguel Angel Pelaez
- Laboratory of Antiviral Strategies, Biochemistry Department, School of Sciences, University of Buenos Aires, IQUIBICEN, University of Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires 1428, Argentina
| | - María Florencia Torti
- Laboratory of Antiviral Strategies, Biochemistry Department, School of Sciences, University of Buenos Aires, IQUIBICEN, University of Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires 1428, Argentina
| | - Aaron Ezequiel Alvarez De Lauro
- Laboratory of Antiviral Strategies, Biochemistry Department, School of Sciences, University of Buenos Aires, IQUIBICEN, University of Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires 1428, Argentina
| | - Agostina Belén Marquez
- Laboratory of Antiviral Strategies, Biochemistry Department, School of Sciences, University of Buenos Aires, IQUIBICEN, University of Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires 1428, Argentina
| | - Federico Giovannoni
- Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Elsa Beatriz Damonte
- Laboratory of Antiviral Strategies, Biochemistry Department, School of Sciences, University of Buenos Aires, IQUIBICEN, University of Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires 1428, Argentina
- Correspondence: (E.B.D.); (C.C.G.)
| | - Cybele Carina García
- Laboratory of Antiviral Strategies, Biochemistry Department, School of Sciences, University of Buenos Aires, IQUIBICEN, University of Buenos Aires/Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires 1428, Argentina
- Correspondence: (E.B.D.); (C.C.G.)
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Abstract
Individuals living in endemic hotspots of Lassa fever have recurrent exposure to Lassa virus (LASV) via spillover from the primary host reservoir Mastomys natalensis. Despite M. natalensis being broadly distributed across sub-Saharan Africa, Lassa fever is only found in West Africa. In recent years, new LASV reservoirs have been identified. Erudition of rodent habitats, reproduction and fecundity, movement patterns, and spatial preferences are essential to institute preventative measures against Lassa fever. Evolutionary insights have also added to our knowledge of closely related mammarenavirus distribution amongst rodents throughout the continent.
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Affiliation(s)
- Allison R Smither
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, USA.
| | - Antoinette R Bell-Kareem
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, USA
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Merson L, Bourner J, Jalloh S, Erber A, Salam AP, Flahault A, Olliaro PL. Clinical characterization of Lassa fever: A systematic review of clinical reports and research to inform clinical trial design. PLoS Negl Trop Dis 2021; 15:e0009788. [PMID: 34547033 PMCID: PMC8486098 DOI: 10.1371/journal.pntd.0009788] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 10/01/2021] [Accepted: 09/03/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Research is urgently needed to reduce the morbidity and mortality of Lassa fever (LF), including clinical trials to test new therapies and to verify the efficacy and safety of the only current treatment recommendation, ribavirin, which has a weak clinical evidence base. To help establish a basis for the development of an adaptable, standardised clinical trial methodology, we conducted a systematic review to identify the clinical characteristics and outcomes of LF and describe how LF has historically been defined and assessed in the scientific literature. METHODOLOGY Primary clinical studies and reports of patients with suspected and confirmed diagnosis of LF published in the peer-reviewed literature before 15 April 2021 were included. Publications were selected following a two-stage screening of abstracts, then full-texts, by two independent reviewers at each stage. Data were extracted, verified, and summarised using descriptive statistics. RESULTS 147 publications were included, primarily case reports (36%), case series (28%), and cohort studies (20%); only 2 quasi-randomised studies (1%) were found. Data are mostly from Nigeria (52% of individuals, 41% of publications) and Sierra Leone (42% of individuals, 31% of publications). The results corroborate the World Health Organisation characterisation of LF presentation. However, a broader spectrum of presenting symptoms is evident, such as gastrointestinal illness and other nervous system and musculoskeletal disorders that are not commonly included as indicators of LF. The overall case fatality ratio was 30% in laboratory-confirmed cases (1896/6373 reported in 109 publications). CONCLUSION Systematic review is an important tool in the clinical characterisation of diseases with limited publications. The results herein provide a more complete understanding of the spectrum of disease which is relevant to clinical trial design. This review demonstrates the need for coordination across the LF research community to generate harmonised research methods that can contribute to building a strong evidence base for new treatments and foster confidence in their integration into clinical care.
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Affiliation(s)
- Laura Merson
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Institute of Global Health, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Josephine Bourner
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | | | - Astrid Erber
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Department of Epidemiology, Center for Public Health, Medical University of Vienna, Vienna, Austria
| | - Alex Paddy Salam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Antoine Flahault
- Institute of Global Health, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Piero L. Olliaro
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
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Yadouleton A, Picard C, Rieger T, Loko F, Cadar D, Kouthon EC, Job EO, Bankolé H, Oestereich L, Gbaguidi F, Pahlman M, Becker-Ziaja B, Journeaux A, Pannetier D, Mély S, Mundweiler S, Thomas D, Kohossi L, Saizonou R, Kakaï CG, Da Silva M, Kossoubedie S, Kakonku AL, M'Pelé P, Gunther S, Baize S, Fichet-Calvet E. Lassa fever in Benin: description of the 2014 and 2016 epidemics and genetic characterization of a new Lassa virus. Emerg Microbes Infect 2021; 9:1761-1770. [PMID: 32723007 PMCID: PMC7473144 DOI: 10.1080/22221751.2020.1796528] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We report two outbreaks of Lassa fever that occurred in Benin in 2014 and 2016 with 20 confirmed cases and 50% (10/20) mortality. Benin was not previously considered to be an endemic country for Lassa fever, resulting in a delay to diagnose the disease and its human transmission. Molecular investigations showed the viral genomes to be similar to that of the Togo strain, which is genetically very different from other known strains and confirms the existence of a new lineage. Endemic circulation of Lassa virus in a new territory and the genetic diversity thus confirm that this virus represents a growing threat for West African people. Given the divergence of the Benin strain from the prototypic Josiah Sierra Leone strain frequently used to generate vaccine candidates, the efficacy of vaccine candidates should also be demonstrated with this strain.
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Affiliation(s)
| | - Caroline Picard
- Virology Department, Institut Pasteur CNR des fièvres hémorragiques virales (CNR FHV), Lyon, France
| | - Toni Rieger
- Virology Department, Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | - Daniel Cadar
- Virology Department, Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | | | | | - Lisa Oestereich
- Virology Department, Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | - Meike Pahlman
- Virology Department, Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Beate Becker-Ziaja
- Virology Department, Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | | | - Stéphane Mély
- INSERM - Jean Mérieux BSL4Laboratory, CNR FHV, Lyon, France
| | | | - Damien Thomas
- INSERM - Jean Mérieux BSL4Laboratory, CNR FHV, Lyon, France
| | | | | | | | | | | | | | | | - Stephan Gunther
- Virology Department, Bernhard-Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Sylvain Baize
- Laboratoire des Fièvres Hémorragiques Virales, Cotonou, Benin
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Chen D, Hou Z, Jiang D, Zheng M, Li G, Zhang Y, Li R, Lin H, Chang J, Zeng H, Guo JT, Zhao X. GILT restricts the cellular entry mediated by the envelope glycoproteins of SARS-CoV, Ebola virus and Lassa fever virus. Emerg Microbes Infect 2020; 8:1511-1523. [PMID: 31631785 PMCID: PMC6818130 DOI: 10.1080/22221751.2019.1677446] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Interferons (IFNs) control viral infections by inducing expression of IFN-stimulated genes (ISGs) that restrict distinct steps of viral replication. We report herein that gamma-interferon-inducible lysosomal thiol reductase (GILT), a lysosome-associated ISG, restricts the infectious entry of selected enveloped RNA viruses. Specifically, we demonstrated that GILT was constitutively expressed in lung epithelial cells and fibroblasts and its expression could be further induced by type II interferon. While overexpression of GILT inhibited the entry mediated by envelope glycoproteins of SARS coronavirus (SARS-CoV), Ebola virus (EBOV) and Lassa fever virus (LASV), depletion of GILT enhanced the entry mediated by these viral envelope glycoproteins. Furthermore, mutations that impaired the thiol reductase activity or disrupted the N-linked glycosylation, a posttranslational modification essential for its lysosomal localization, largely compromised GILT restriction of viral entry. We also found that the induction of GILT expression reduced the level and activity of cathepsin L, which is required for the entry of these RNA viruses in lysosomes. Our data indicate that GILT is a novel antiviral ISG that specifically inhibits the entry of selected enveloped RNA viruses in lysosomes via disruption of cathepsin L metabolism and function and may play a role in immune control and pathogenesis of these viruses.
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Affiliation(s)
- Danying Chen
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
| | - Zhifei Hou
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China.,Department of Pulmonary and Critical Care Medicine, General Hospital of Datong Coal Mine Group Co., Ltd. , People's Republic of China
| | - Dong Jiang
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
| | - Mei Zheng
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
| | - Guoli Li
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
| | - Yue Zhang
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
| | - Rui Li
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
| | - Hanxin Lin
- Department of Pathology and Laboratory Medicine, Western University , London , Ontario , Canada
| | - Jinhong Chang
- Baruch S. Blumberg Institute, Hepatitis B Foundation , Doylestown , PA , USA
| | - Hui Zeng
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
| | - Ju-Tao Guo
- Baruch S. Blumberg Institute, Hepatitis B Foundation , Doylestown , PA , USA
| | - Xuesen Zhao
- Institute of Infectious disease, Beijing Ditan Hospital, Capital Medical University , Beijing , People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Disease , Beijing , People's Republic of China
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Native and Invasive Small Mammals in Urban Habitats along the Commercial Axis Connecting Benin and Niger, West Africa. DIVERSITY 2019. [DOI: 10.3390/d11120238] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Based on compiled small mammal trapping data collected over 12 years from Benin and Niger (3701 individual records from 66 sampling sites), located in mainland Africa, we here describe the small mammal community assemblage in urban habitats along the commercial axis connecting the two countries, from the seaport of Cotonou to the Sahelian hinterland, with a particular focus on invasive species. In doing so, we document extant species distributions, which highlight the risks of continuing the range expansion of three synanthropic invasive rodent species, namely black rats (Rattus rattus), brown rats (R. norvegicus), and house mice (Mus musculus). Using various diversity estimates and community ecology approaches, we detect a latitudinal gradient of species richness that significantly decreased Northward. We show that shrews (Crocidura) represent a very important component of micro-mammal fauna in West African towns and villages, especially at lower latitudes. We also demonstrate that invasive and native synanthropic rodents do not distribute randomly in West Africa, which suggests that invasive species dynamics and history differ markedly, and that they involve gradual, as well as human-mediated, long distance dispersal. Patterns of segregation are also observed between native Mastomys natalensis and invasive rats R. rattus and R. norvegicus, suggesting potential native-to-invasive species turn over. Consequences of such processes, especially in terms of public health, are discussed.
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