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Zhou CM, Jiang ZZ, Liu N, Yu XJ. Current insights into human pathogenic phenuiviruses and the host immune system. Virulence 2024; 15:2384563. [PMID: 39072499 DOI: 10.1080/21505594.2024.2384563] [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: 05/22/2024] [Revised: 07/09/2024] [Accepted: 07/18/2024] [Indexed: 07/30/2024] Open
Abstract
Phenuiviruses are a class of segmented negative-sense single-stranded RNA viruses, typically consisting of three RNA segments that encode four distinct proteins. The emergence of pathogenic phenuivirus strains, such as Rift Valley fever phlebovirus (RVFV) in sub-Saharan Africa, Severe Fever with Thrombocytopenia Syndrome Virus (SFTSV) in East and Southeast Asia, and Heartland Virus (HRTV) in the United States has presented considerable challenges to global public health in recent years. The innate immune system plays a crucial role as the initial defense mechanism of the host against invading pathogens. In addition to continued research aimed at elucidating the epidemiological characteristics of phenuivirus, significant advancements have been made in investigating its viral virulence factors (glycoprotein, non-structural protein, and nucleoprotein) and potential host-pathogen interactions. Specifically, efforts have focused on understanding mechanisms of viral immune evasion, viral assembly and egress, and host immune networks involving immune cells, programmed cell death, inflammation, nucleic acid receptors, etc. Furthermore, a plethora of technological advancements, including metagenomics, metabolomics, single-cell transcriptomics, proteomics, gene editing, monoclonal antibodies, and vaccines, have been utilized to further our understanding of phenuivirus pathogenesis and host immune responses. Hence, this review aims to provide a comprehensive overview of the current understanding of the mechanisms of host recognition, viral immune evasion, and potential therapeutic approaches during human pathogenic phenuivirus infections focusing particularly on RVFV and SFTSV.
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Affiliation(s)
- Chuan-Min Zhou
- Gastrointestinal Disease Diagnosis and Treatment Center, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Department of General Surgery, Hebei Key Laboratory of Colorectal Cancer Precision Diagnosis and Treatment, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Central Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ze-Zheng Jiang
- State Key Laboratory of Virology, School of Public Health, Wuhan University, Wuhan, China
| | - Ning Liu
- Department of Quality and Operations Management, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xue-Jie Yu
- State Key Laboratory of Virology, School of Public Health, Wuhan University, Wuhan, China
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Wesselmann KM, Postigo-Hidalgo I, Pezzi L, de Oliveira-Filho EF, Fischer C, de Lamballerie X, Drexler JF. Emergence of Oropouche fever in Latin America: a narrative review. THE LANCET. INFECTIOUS DISEASES 2024; 24:e439-e452. [PMID: 38281494 DOI: 10.1016/s1473-3099(23)00740-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 01/30/2024]
Abstract
Since its discovery in 1955, the incidence and geographical spread of reported Oropouche virus (OROV) infections have increased. Oropouche fever has been suggested to be one of the most important vector-borne diseases in Latin America. However, both literature on OROV and genomic sequence availability are scarce, with few contributing laboratories worldwide. Three reassortant OROV glycoprotein gene variants termed Iquitos, Madre de Dios, and Perdões virus have been described from humans and non-human primates. OROV predominantly causes acute febrile illness, but severe neurological disease such as meningoencephalitis can occur. Due to unspecific symptoms, laboratory diagnostics are crucial. Several laboratory tests have been developed but robust commercial tests are hardly available. Although OROV is mainly transmitted by biting midges, it has also been detected in several mosquito species and a wide range of vertebrate hosts, which likely facilitates its widespread emergence. However, potential non-human vertebrate reservoirs have not been systematically studied. Robust animal models to investigate pathogenesis and immune responses are not available. Epidemiology, pathogenesis, transmission cycle, cross-protection from infections with OROV reassortants, and the natural history of infection remain unclear. This Review identifies Oropouche fever as a neglected disease and offers recommendations to address existing knowledge gaps, enable risk assessments, and ensure effective public health responses.
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Affiliation(s)
- Konrad M Wesselmann
- Unité des Virus Émergents (UVE: Aix-Marseille Univ-IRD 190-Inserm 1207), Marseille, France
| | - Ignacio Postigo-Hidalgo
- Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Laura Pezzi
- Unité des Virus Émergents (UVE: Aix-Marseille Univ-IRD 190-Inserm 1207), Marseille, France; Centre National de Référence (CNR) des Arbovirus, Marseille, France
| | - Edmilson F de Oliveira-Filho
- Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Carlo Fischer
- Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Xavier de Lamballerie
- Unité des Virus Émergents (UVE: Aix-Marseille Univ-IRD 190-Inserm 1207), Marseille, France; Centre National de Référence (CNR) des Arbovirus, Marseille, France
| | - Jan Felix Drexler
- Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; German Centre for Infection Research (DZIF), Berlin, Germany.
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3
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Ritter M, Canus L, Gautam A, Vallet T, Zhong L, Lalande A, Boson B, Gandhi A, Bodoirat S, Burlaud-Gaillard J, Freitas N, Roingeard P, Barr JN, Lotteau V, Legros V, Mathieu C, Cosset FL, Denolly S. The low-density lipoprotein receptor and apolipoprotein E associated with CCHFV particles mediate CCHFV entry into cells. Nat Commun 2024; 15:4542. [PMID: 38806525 PMCID: PMC11133370 DOI: 10.1038/s41467-024-48989-5] [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: 10/24/2023] [Accepted: 05/13/2024] [Indexed: 05/30/2024] Open
Abstract
The Crimean-Congo hemorrhagic fever virus (CCHFV) is an emerging pathogen of the Orthonairovirus genus that can cause severe and often lethal hemorrhagic diseases in humans. CCHFV has a broad tropism and can infect a variety of species and tissues. Here, by using gene silencing, blocking antibodies or soluble receptor fragments, we identify the low-density lipoprotein receptor (LDL-R) as a CCHFV entry factor. The LDL-R facilitates binding of CCHFV particles but does not allow entry of Hazara virus (HAZV), another member of the genus. In addition, we show that apolipoprotein E (apoE), an exchangeable protein that mediates LDL/LDL-R interaction, is incorporated on CCHFV particles, though not on HAZV particles, and enhances their specific infectivity by promoting an LDL-R dependent entry. Finally, we show that molecules that decrease LDL-R from the surface of target cells could inhibit CCHFV infection. Our study highlights that CCHFV takes advantage of a lipoprotein receptor and recruits its natural ligand to promote entry into cells.
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Affiliation(s)
- Maureen Ritter
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Lola Canus
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Anupriya Gautam
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Thomas Vallet
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Li Zhong
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Alexandre Lalande
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Bertrand Boson
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Apoorv Gandhi
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Sergueï Bodoirat
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Julien Burlaud-Gaillard
- Inserm U1259, Morphogénèse et Antigénicité du VIH et des Virus des Hépatites (MAVIVH), Université de Tours and CHRU de Tours, 37032, Tours, France
- Université de Tours and CHRU de Tours, Plateforme IBiSA de Microscopie Electronique, Tours, France
| | - Natalia Freitas
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - Philippe Roingeard
- Inserm U1259, Morphogénèse et Antigénicité du VIH et des Virus des Hépatites (MAVIVH), Université de Tours and CHRU de Tours, 37032, Tours, France
- Université de Tours and CHRU de Tours, Plateforme IBiSA de Microscopie Electronique, Tours, France
| | - John N Barr
- Faculty of Biological Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Vincent Legros
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
- Campus vétérinaire de Lyon, VetAgro Sup, Université de Lyon, Lyon, Marcy-l'Etoile, France
| | - Cyrille Mathieu
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France
| | - François-Loïc Cosset
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France.
| | - Solène Denolly
- CIRI - Centre International de Recherche en Infectiologie, Univ. Lyon, Université Claude Bernard Lyon 1, Inserm, U1111, CNRS, UMR5308, ENS de Lyon, F-69007, Lyon, France.
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Moreira HM, Sgorlon G, Queiroz JAS, Roca TP, Ribeiro J, Teixeira KS, Passos-Silva AM, Araújo A, Gasparelo NWF, Dos Santos ADO, Lugtenburg CAB, Roque RA, Villalobos Salcedo JM, Pereira DB, Vieira D. Outbreak of Oropouche virus in frontier regions in western Amazon. Microbiol Spectr 2024; 12:e0162923. [PMID: 38323826 PMCID: PMC10913433 DOI: 10.1128/spectrum.01629-23] [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: 04/18/2023] [Accepted: 11/21/2023] [Indexed: 02/08/2024] Open
Abstract
Oropouche virus (OROV) is characterized as a re-emerging arbovirus of great concern for public health, being responsible for several outbreaks of acute fever identified in Latin American countries, registering more than half a million reported cases. The incidence of reports of this virus is intrinsically favored by environmental conditions, in which such characteristics are related to the increase and distribution of the vector population to areas of human traffic. Moreover, there is a problem regarding the lack of diagnosis in Brazil that aggregates the success of the etiologic agent. Thus, by means of molecular techniques, we identified 27 positive cases of the OROV circulating in border locations in western Amazon, with 44.44% (12/27) of the cohort characterized as infected individuals with reported symptoms, mainly ranging from fever, myalgia, and back pain. Among the positive samples, it was possible to obtain a total of 48.14% (13/27) samples to analyze the S and M segments of Oropouche, which showed similarities among the Brazilian sequences. Thus, it was possible to verify the circulation of the OROV in Rondonia and border areas, in which the tracking of neglected arboviruses is necessary for the genomic surveillance of emerging and re-emerging viruses.IMPORTANCEThe western Amazon region is known for outbreaks of acute febrile illnesses, to which the lack of specific diagnostics for different pathogens hinders the management of patients in healthcare units. The Oropouche virus has already been recorded in the region in the 1990s. However, this is the first study, after this record, to perform the detection of individuals with acute febrile illness using a screening test to exclude Zika, dengue, and chikungunya, confirmed by sequencing the circulation of the virus in the state of Rondonia and border areas. We emphasize the importance of including diagnostics for viruses such as Oropouche, which suffers underreporting for years and is related to seasonal periods in Western Amazon locations, a factor that has a direct influence on public health in the region. In addition, we emphasize the importance of genomic surveillance in the elucidation of outbreaks that affect the resident population of these locations.
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Affiliation(s)
- Hillquias Monteiro Moreira
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondonia - UNIR, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Gabriella Sgorlon
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondonia - UNIR, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Jackson A. S. Queiroz
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondonia - UNIR, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Tarcio P. Roca
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Jessiane Ribeiro
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Karolaine S. Teixeira
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Ana Maísa Passos-Silva
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondonia - UNIR, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Adrhyan Araújo
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Nadson Willian Felipe Gasparelo
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondonia - UNIR, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | | | | | | | | | - Dhelio B. Pereira
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
| | - Deusilene Vieira
- Laboratório de Virologia Molecular, Fundação Oswaldo Cruz Rondonia - FIOCRUZ/RO, Porto Velho, Rondonia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Universidade Federal de Rondonia - UNIR, Porto Velho, Rondonia, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, Rondonia, Brazil
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Zhang Y, Liu X, Wu Z, Feng S, Lu K, Zhu W, Sun H, Niu G. Oropouche virus: A neglected global arboviral threat. Virus Res 2024; 341:199318. [PMID: 38224842 PMCID: PMC10827532 DOI: 10.1016/j.virusres.2024.199318] [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: 11/12/2023] [Revised: 01/02/2024] [Accepted: 01/12/2024] [Indexed: 01/17/2024]
Abstract
The Oropouche virus is an important arthropod-borne virus in the Peribunyaviridae family that can cause febrile illnesses, and it is widely distributed in tropical regions such as Central and South America. Since the virus was first identified, a large number of related cases are reported every year. No deaths have been reported to date, however, the virus can cause systemic infections, including the nervous and blood systems, leading to serious complications. The transmission of Oropouche virus occurs through both urban and sylvatic cycles, with the anthropophilic biting midge Culicoides paraensis serving as the primary vector in urban areas. Direct human-to-human transmission of Oropouche virus has not been observed. Oropouche virus consists of three segments, and the proteins encoded by the different segments enables the virus to replicate efficiently in the host and to resist the host's immune response. Phylogenetic analyses showed that Oropouche virus sequences are geographically distinct and have closer homologies with Iquitos virus and Perdoes virus, which belong to the family Peribunyaviridae. Despite the enormous threat it poses to public health, there are currently no licensed vaccines or specific antiviral treatments for the disease it causes. Recent studies have utilised imJatobal virusmunoinformatics approaches to develop epitope-based peptide vaccines, which have laid the groundwork for the clinical use of vaccines. The present review focuses on the structure, epidemiology, immunity and phylogeny of Oropouche virus, as well as the progress of vaccine development, thereby attracting wider attention and research, particularly with regard to potential vaccine programs.
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Affiliation(s)
- Yuli Zhang
- Shandong Second Medical University, Weifang, 261053, China
| | - Xiao Liu
- Shandong Second Medical University, Weifang, 261053, China
| | - Zhen Wu
- Shandong Second Medical University, Weifang, 261053, China
| | - Shuo Feng
- Shandong Second Medical University, Weifang, 261053, China
| | - Ke Lu
- Shandong Second Medical University, Weifang, 261053, China
| | - Wenbing Zhu
- Shandong Second Medical University, Weifang, 261053, China
| | - Hengyi Sun
- Shandong Second Medical University, Weifang, 261053, China.
| | - Guoyu Niu
- Shandong Second Medical University, Weifang, 261053, China.
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Yang P, Li W, Fan X, Pan J, Mann CJ, Varnum H, Clark LE, Clark SA, Coscia A, Smith KN, Brusic V, Abraham J. Structural basis for VLDLR recognition by eastern equine encephalitis virus. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.14.567065. [PMID: 38014066 PMCID: PMC10680694 DOI: 10.1101/2023.11.14.567065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Alphaviruses are arthropod-borne enveloped RNA viruses that include several important human pathogens with outbreak potential. Among them, eastern equine encephalitis virus (EEEV) is the most virulent, and many survivors develop neurological sequelae, including paralysis and intellectual disability. The spike proteins of alphaviruses comprise trimers of heterodimers of their envelope glycoproteins E2 and E1 that mediate binding to cellular receptors and fusion of virus and host cell membranes during entry. We recently identified very-low density lipoprotein receptor (VLDLR) and apolipoprotein E receptor 2 (ApoER2), two closely related proteins that are expressed in the brain, as cellular receptors for EEEV and a distantly related alphavirus, Semliki forest virus (SFV) 1 . The EEEV and SFV spike glycoproteins have low sequence homology, and how they have evolved to bind the same cellular receptors is unknown. Here, we used single-particle cryo-electron microscopy (cryo-EM) to determine structures of the EEEV and SFV spike glycoproteins bound to the VLDLR ligand-binding domain. The structures reveal that EEEV and SFV use distinct surfaces to bind VLDLR; EEEV uses a cluster of basic residues on the E2 subunit of its spike glycoprotein, while SFV uses two basic residues at a remote site on its E1 glycoprotein. Our studies reveal that different alphaviruses interact with the same cellular receptor through divergent binding modes. They further suggest that the ability of LDLR-related proteins to interact with viral spike proteins through very small footprints with flexible binding modes results in a low evolutionary barrier to the acquisition of LDLR-related proteins as cellular receptors for diverse sets of viruses.
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Xu Y, Wang X, Jiang L, Zhou Y, Liu Y, Wang F, Zhang L. Natural hosts and animal models for Rift Valley fever phlebovirus. Front Vet Sci 2023; 10:1258172. [PMID: 37929288 PMCID: PMC10621046 DOI: 10.3389/fvets.2023.1258172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/06/2023] [Indexed: 11/07/2023] Open
Abstract
Rift Valley fever phlebovirus (RVFV) is a zoonotic mosquito-transmitted arbovirus, presenting a serious threat to humans and animals. Susceptible hosts are of great significance for the prevention of RVFV. Appropriate animal models are helpful to better understand the onset and development of diseases, as well as the control measures and vaccine research. This review focuses on the role of animal hosts in the maintenance of the virus, and summarizes the host range of RVFV. We list some common animal models in the process of RVFV research, which would provide some important insights into the prevention and treatment of RVFV, as well as the study of Rift Valley fever (RVF) pathogenesis and vaccines.
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Affiliation(s)
- Yuqing Xu
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- Medical Science and Technology Innovation Center, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiao Wang
- Medical Science and Technology Innovation Center, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Lu Jiang
- Medical Science and Technology Innovation Center, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Yixuan Zhou
- Medical Science and Technology Innovation Center, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Yihan Liu
- Medical Science and Technology Innovation Center, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Fei Wang
- Medical Science and Technology Innovation Center, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
- School of Laboratory Animal and Shandong Laboratory Animal Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Leiliang Zhang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- Medical Science and Technology Innovation Center, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
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Hartman AL, Myler PJ. Bunyavirales: Scientific Gaps and Prototype Pathogens for a Large and Diverse Group of Zoonotic Viruses. J Infect Dis 2023; 228:S376-S389. [PMID: 37849397 PMCID: PMC10582323 DOI: 10.1093/infdis/jiac338] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023] Open
Abstract
Research directed at select prototype pathogens is part of the approach put forth by the National Institute of Allergy and Infectious Disease (NIAID) to prepare for future pandemics caused by emerging viruses. We were tasked with identifying suitable prototypes for four virus families of the Bunyavirales order (Phenuiviridae, Peribunyaviridae, Nairoviridae, and Hantaviridae). This is a challenge due to the breadth and diversity of these viral groups. While there are many differences among the Bunyavirales, they generally have complex ecological life cycles, segmented genomes, and cause a range of human clinical outcomes from mild to severe and even death. Here, we delineate potential prototype species that encompass the breadth of clinical outcomes of a given family, have existing reverse genetics tools or animal disease models, and can be amenable to a platform approach to vaccine testing. Suggested prototype pathogens outlined here can serve as a starting point for further discussions.
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Affiliation(s)
- Amy L Hartman
- Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Infectious Diseases and Microbiology, University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Peter J Myler
- Department of Pediatrics and the Department of Biomedical Informatics and Medical Education, University of Washington, Seattle, Washington, USA
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, USA
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Ganaie SS, Leung DW, Hartman AL, Amarasinghe GK. Host entry factors of Rift Valley Fever Virus infection. Adv Virus Res 2023; 117:121-136. [PMID: 37832991 DOI: 10.1016/bs.aivir.2023.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
Rift Valley Fever Virus (RVFV) is a negative sense segmented RNA virus that can cause severe hemorrhagic fever. The tri-segmented virus genome encodes for six (6) multifunctional proteins that engage host factors at a variety of different stages in the replication cycle. The S segment encodes nucleoprotein (N) and nonstructural protein S (NSs), the M segment encodes viral glycoproteins Gn and Gc as well as nonstructural protein M (NSm) and the L segment encodes the viral polymerase (L). Viral glycoproteins Gn and Gc are responsible for entry by binding to a number of host factors. Our recent studies identified a scavenger receptor, LDL receptor related protein 1 (Lrp1), as a potential pro-viral host factor for RVFV and related viruses, including Oropouche virus (OROV) infection. Coincidentally, several recent studies identified other LDL family proteins as viral entry factors and receptors for other viral families. Collectively, these observations suggest that highly conserved LDL family proteins may play a significant role in facilitating entry of viruses from several distinct families. Given the significant roles of viral and host factors during infection, characterization of these interactions is critical for therapeutic targeting with neutralizing antibodies and vaccines.
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Affiliation(s)
- Safder S Ganaie
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, United States
| | - Daisy W Leung
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, United States; Department of Medicine, Washington University School of Medicine, St Louis, MO, United States
| | - Amy L Hartman
- Center for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, United States; Department of Infectious Diseases and Microbiology, School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Gaya K Amarasinghe
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, United States.
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Devignot S, Sha TW, Burkard TR, Schmerer P, Hagelkruys A, Mirazimi A, Elling U, Penninger JM, Weber F. Low-density lipoprotein receptor-related protein 1 (LRP1) as an auxiliary host factor for RNA viruses. Life Sci Alliance 2023; 6:e202302005. [PMID: 37072184 PMCID: PMC10114362 DOI: 10.26508/lsa.202302005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/20/2023] Open
Abstract
Viruses with an RNA genome are often the cause of zoonotic infections. In order to identify novel pro-viral host cell factors, we screened a haploid insertion-mutagenized mouse embryonic cell library for clones that are resistant to Rift Valley fever virus (RVFV). This screen returned the low-density lipoprotein receptor-related protein 1 (LRP1) as a top hit, a plasma membrane protein involved in a wide variety of cell activities. Inactivation of LRP1 in human cells reduced RVFV RNA levels already at the attachment and entry stages of infection. Moreover, the role of LRP1 in promoting RVFV infection was dependent on physiological levels of cholesterol and on endocytosis. In the human cell line HuH-7, LRP1 also promoted early infection stages of sandfly fever Sicilian virus and La Crosse virus, but had a minor effect on late infection by vesicular stomatitis virus, whereas encephalomyocarditis virus was entirely LRP1-independent. Moreover, siRNA experiments in human Calu-3 cells demonstrated that also SARS-CoV-2 infection benefitted from LRP1. Thus, we identified LRP1 as a host factor that supports infection by a spectrum of RNA viruses.
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Affiliation(s)
- Stephanie Devignot
- Institute for Virology, FB10-Veterinary Medicine, Justus-Liebig University, Giessen, Germany
| | - Tim Wai Sha
- Institute for Virology, FB10-Veterinary Medicine, Justus-Liebig University, Giessen, Germany
| | - Thomas R Burkard
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna, Austria
| | - Patrick Schmerer
- Institute for Virology, FB10-Veterinary Medicine, Justus-Liebig University, Giessen, Germany
| | - Astrid Hagelkruys
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna, Austria
| | - Ali Mirazimi
- Public Health Agency of Sweden, Solna, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, Solna, Sweden
| | - Ulrich Elling
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna, Austria
| | - Josef M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna, Austria
- Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, Canada
| | - Friedemann Weber
- Institute for Virology, FB10-Veterinary Medicine, Justus-Liebig University, Giessen, Germany
- German Centre for Infection Research (DZIF), Partner Site Giessen, Giessen, Germany
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Barker J, daSilva LLP, Crump CM. Mechanisms of bunyavirus morphogenesis and egress. J Gen Virol 2023; 104. [PMID: 37083579 DOI: 10.1099/jgv.0.001845] [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: 04/22/2023] Open
Abstract
Unlike many segmented negative-sense RNA viruses, most members of the Bunyavirales bud at Golgi membranes, as opposed to the plasma membrane. Central players in this assembly process are the envelope glycoproteins, Gn and Gc, which upon translation undergo proteolytic processing, glycosylation and trafficking to the Golgi, where they interact with ribonucleoprotein genome segments and bud into Golgi-derived compartments. The processes involved in genome packaging during virion assembly can lead to the generation of reassorted viruses, if a cell is co-infected with two different bunyaviruses, due to mismatching of viral genome segment packaging. This can lead to viruses with high pathogenic potential, as demonstrated by the emergence of Schmallenberg virus. This review focuses on the assembly pathways of tri-segmented bunyaviruses, highlighting some areas in need of further research to understand these important pathogens with zoonotic potential.
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Affiliation(s)
- Jake Barker
- Division of Virology, Department of Pathology, University of Cambridge, Cambridge, UK
| | - Luis L P daSilva
- Departamento de Biologia Celular e Molecular, Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, State of São Paulo, Brazil
| | - Colin M Crump
- Division of Virology, Department of Pathology, University of Cambridge, Cambridge, UK
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LRP6 Is a Functional Receptor for Attenuated Canine Distemper Virus. mBio 2023; 14:e0311422. [PMID: 36645301 PMCID: PMC9973313 DOI: 10.1128/mbio.03114-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Wild-type canine distemper virus (CDV) is an important pathogen of dogs as well as wildlife that can infect immune and epithelial cells through two known receptors: the signaling lymphocytic activation molecule (SLAM) and nectin-4, respectively. Conversely, the ferret and egg-adapted CDV-Onderstepoort strain (CDV-OP) is employed as an effective vaccine for dogs. CDV-OP also exhibits promising oncolytic properties, such as its abilities to infect and kill multiple cancer cells in vitro. Interestingly, several cancer cells do not express SLAM or nectin-4, suggesting the presence of a yet unknown entry factor for CDV-OP. By conducting a genome-wide CRISPR/Cas9 knockout (KO) screen in CDV-OP-susceptible canine mammary carcinoma P114 cells, which neither express SLAM nor nectin-4, we identified low-density lipoprotein receptor-related protein 6 (LRP6) as a host factor that promotes CDV-OP infectivity. Whereas the genetic ablation of LRP6 rendered cells resistant to infection, ectopic expression in resistant LRP6KO cells restored susceptibility. Furthermore, multiple functional studies revealed that (i) the overexpression of LRP6 leads to increased cell-cell fusion, (ii) a soluble construct of the viral receptor-binding protein (solHOP) interacts with a soluble form of LRP6 (solLRP6), (iii) an H-OP point mutant that prevents interaction with solLRP6 abrogates cell entry in multiple cell lines once transferred into recombinant viral particles, and (iv) vesicular stomatitis virus (VSV) pseudotyped with CDV-OP envelope glycoproteins loses its infectivity in LRP6KO cells. Collectively, our study identified LRP6 as the long sought-after cell entry receptor of CDV-OP in multiple cell lines, which set the molecular bases to refine our understanding of viral-cell adaptation and to further investigate its oncolytic properties. IMPORTANCE Oncolytic viruses (OV) have gathered increasing interest in recent years as an alternative option to treat cancers. The Onderstepoort strain of canine distemper virus (CDV-OP), an enveloped RNA virus belonging to the genus Morbillivirus, is employed as a safe and efficient vaccine for dogs against distemper disease. Importantly, although CDV-OP can infect and kill multiple cancer cell lines, the basic mechanisms of entry remain to be elucidated, as most of those transformed cells do not express natural receptors (i.e., SLAM and nectin-4). In this study, using a genome-wide CRISPR/Cas9 knockout screen, we describe the discovery of LRP6 as a novel functional entry receptor for CDV-OP in various cancer cell lines and thereby uncover a basic mechanism of cell culture adaptation. Since LRP6 is upregulated in various cancer types, our data provide important insights in order to further investigate the oncolytic properties of CDV-OP.
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