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Mirkov I, Tucovic D, Kulas J, Malesevic A, Kataranovski D, Kataranovski M, Popov Aleksandrov A. Physiological strategies in wild rodents: immune defenses of commensal rats. Integr Zool 2024; 19:350-370. [PMID: 37814602 DOI: 10.1111/1749-4877.12766] [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] [Indexed: 10/11/2023]
Abstract
The importance of issues associated with urban/commensal rats and mice (property damage, management costs, and health risks) press upon research on these animals. While the demography of commensal rodents is mostly studied, the need for understanding factors influencing their natural morbidity/mortality is also stressed. In this respect, more attention is expected to be paid to immunity, the physiological mechanism of defense against host survival threats (pathogens, parasites, diseases). Commensal rats and mice carry numerous pathogens that evoke diverse immune responses. The state of immunity in commensal house mice is studied in great detail, owing to the use of laboratory strains in biomedical research. Because commensal rats are, compared to mice, carriers of more zoonotic agents, rats' immunity is studied mainly in that context. Some of these zoonotic agents cause chronic, asymptomatic infections, which justified studies of immunological mechanisms of pathogen tolerance versus clearance regulation in rats. Occurrence of some infections in specific tissues/organs pressed upon analysis of local/regional immune responses and/or immunopathology. A survey of immunological activity/responses in commensal rats is given in this review, with mention of existing data in commensal mice. It should throw some light on the factors relevant to their morbidity and lifespan, supplementing the knowledge of commensal rodent ecology.
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Affiliation(s)
- Ivana Mirkov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Dina Tucovic
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jelena Kulas
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Anastasija Malesevic
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Dragan Kataranovski
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Milena Kataranovski
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Popov Aleksandrov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Sinisa Stankovic"-National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Furusato IN, Figueiredo KB, de Carvalho ACSR, da Silva Ferreira CS, Takahashi JPF, Kimura LM, Aleixo CS, de Brito OP, Luchs A, Cunha MS, de Azevedo Fernandes NCC, de Araújo LJT, Catão-Dias JL, Guerra JM. Detection of herpesviruses in neotropical primates from São Paulo, Brazil. Braz J Microbiol 2023; 54:3201-3209. [PMID: 37688686 PMCID: PMC10689701 DOI: 10.1007/s42770-023-01105-z] [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: 05/02/2023] [Accepted: 08/14/2023] [Indexed: 09/11/2023] Open
Abstract
Transmission of herpesvirus between humans and non-human primates represents a serious potential threat to human health and endangered species conservation. This study aimed to identify herpesvirus genomes in samples of neotropical primates (NTPs) in the state of São Paulo, Brazil. A total of 242 NTPs, including Callithrix sp., Alouatta sp., Sapajus sp., and Callicebus sp., were evaluated by pan-herpesvirus polymerase chain reaction (PCR) and sequencing. Sixty-two (25.6%) samples containing genome segments representative of members of the family Herpesviridae, including 16.1% for Callitrichine gammaherpesvirus 3, 6.1% for Human alphaherpesvirus 1, 2.1% for Alouatta macconnelli cytomegalovirus, and 0.83% for Cebus albifrons lymphocryptovirus 1. No co-infections were detected. The detection of herpesvirus genomes was significantly higher among adult animals (p = 0.033) and those kept under human care (p = 0.008671). These findings confirm the importance of monitoring the occurrence of herpesviruses in NTP populations in epizootic events.
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Affiliation(s)
- Isabella Naomi Furusato
- Centro de Patologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil
| | | | | | | | - Juliana Possatto Fernandes Takahashi
- Centro de Patologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil
- Programa de Pós-Graduação Em Doenças Infecciosas E Parasitárias - Faculdade de Medicina, Universidade Federal de Mato Grosso Do Sul, Bairro Universitário, Av. Costa E Silva, S/nº, Campo Grande, MS, 79070900, Brazil
| | - Lidia Midori Kimura
- Centro de Patologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil
| | - Camila Siqueira Aleixo
- Centro de Patologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil
| | - Odília Pereira de Brito
- Centro de Patologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil
| | - Adriana Luchs
- Centro de Virologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil
| | - Mariana Sequetin Cunha
- Centro de Virologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil
| | | | | | - José Luiz Catão-Dias
- Laboratório de Patologia Comparada (LAPCOM), Departamento de Patologia, Faculdade de Veterinária E Zootecnia, Universidade de São Paulo, Avenida Professor Orlando Marques de Paiva, 70, São Paulo, SP, 05508270, Brazil
| | - Juliana Mariotti Guerra
- Centro de Patologia, Instituto Adolfo Lutz, Avenida Dr. Arnaldo, 351, Pacaembú, São Paulo, SP, 01246000, Brazil.
- Laboratório de Patologia Comparada (LAPCOM), Departamento de Patologia, Faculdade de Veterinária E Zootecnia, Universidade de São Paulo, Avenida Professor Orlando Marques de Paiva, 70, São Paulo, SP, 05508270, Brazil.
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3
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Lv Z, Ji F, Song J, Li P, Chen M, Chang J. Predicting the spatial structure of membrane protein and B-cell epitopes of the MPXV_VEROE6 strain of monkeypox virus. Heliyon 2023; 9:e20386. [PMID: 37767496 PMCID: PMC10520823 DOI: 10.1016/j.heliyon.2023.e20386] [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: 10/25/2022] [Revised: 08/31/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
By targeting the membrane (M) proteins of monkeypox virus (MPXV) strain VEROE6, we analyzed its evolutionary hierarchy and predicted its dominant antigenic B-cell epitope to provide a theoretical basis for the development of MPXV epitope vaccines and related monoclonal antibodies. In this study, phylogenetic trees were constructed based on the nucleic acid sequences of MPXV and the amino acid sequences of M proteins. The 3D structure of the MPXV_VEROE6 M proteins was predicted with AlphaFold v2.0 and the dominant antigenic B-cell epitopes were comprehensively predicted by analyzing parameters such as flexible segments, the hydrophilic index, the antigenic index, and the protein surface probability. The results showed that the M protein of MPXV_VEROE6 contained 377 amino acids, and their spatial configuration was relatively regular with a turning and random coil structure. The results of a comprehensive multiparameter analysis indicated that possible B-cell epitopes were located in the 23-28, 57-63, 67-78, 80-93, 98-105, 125-131, 143-149, 201-206, 231-237, 261-270, 291-303, and 346-362 amino acid segments. This study elucidated the structural and evolutionary characteristics of MPXV membrane proteins with the aim of providing theoretical information for the development of epitope vaccines, rapid diagnostic reagents, and monoclonal antibodies for monkeypox virus.
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Affiliation(s)
- Zhiyuan Lv
- The Xinjiang Key Laboratory of Natural Medicine Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, Urumqi Xinjiang 830011, China
| | - Feng Ji
- Zhongda Hospital, Medical School, Southeast University, Nanjing 210009, China
| | - Jianzhong Song
- The Xinjiang Key Laboratory of Natural Medicine Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, Urumqi Xinjiang 830011, China
- Department of Pharmacy, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011,China
| | - Panpan Li
- The Xinjiang Key Laboratory of Natural Medicine Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, Urumqi Xinjiang 830011, China
| | - Ming Chen
- Zhongda Hospital, Medical School, Southeast University, Nanjing 210009, China
| | - Junmin Chang
- The Xinjiang Key Laboratory of Natural Medicine Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, Urumqi Xinjiang 830011, China
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Hansen F, Vučak M, Nichols J, Hughes J, Bane S, Camiolo S, da Silva Filipe A, Ostermann E, Staliunaite L, Chan B, Mauch T, Sogoba N, Streblow DN, Voigt S, Oestereich L, Ehlers B, Redwood AJ, Feldmann H, Brune W, Rosenke K, Jarvis MA, Davison AJ. Isolation and genome sequencing of cytomegaloviruses from Natal multimammate mice ( Mastomys natalensis). J Gen Virol 2023; 104:001873. [PMID: 37643006 PMCID: PMC10721045 DOI: 10.1099/jgv.0.001873] [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] [Received: 05/09/2023] [Accepted: 08/02/2023] [Indexed: 08/31/2023] Open
Abstract
Distinct cytomegaloviruses (CMVs) are widely distributed across their mammalian hosts in a highly host species-restricted pattern. To date, evidence demonstrating this has been limited largely to PCR-based approaches targeting small, conserved genomic regions, and only a few complete genomes of isolated viruses representing distinct CMV species have been sequenced. We have now combined direct isolation of infectious viruses from tissues with complete genome sequencing to provide a view of CMV diversity in a wild animal population. We targeted Natal multimammate mice (Mastomys natalensis), which are common in sub-Saharan Africa, are known to carry a variety of zoonotic pathogens, and are regarded as the primary source of Lassa virus (LASV) spillover into humans. Using transformed epithelial cells prepared from M. natalensis kidneys, we isolated CMVs from the salivary gland tissue of 14 of 37 (36 %) animals from a field study site in Mali. Genome sequencing showed that these primary isolates represent three different M. natalensis CMVs (MnatCMVs: MnatCMV1, MnatCMV2 and MnatCMV3), with some animals carrying multiple MnatCMVs or multiple strains of a single MnatCMV presumably as a result of coinfection or superinfection. Including primary isolates and plaque-purified isolates, we sequenced and annotated the genomes of two MnatCMV1 strains (derived from sequencing 14 viruses), six MnatCMV2 strains (25 viruses) and ten MnatCMV3 strains (21 viruses), totalling 18 MnatCMV strains isolated as 60 infectious viruses. Phylogenetic analysis showed that these MnatCMVs group with other murid viruses in the genus Muromegalovirus (subfamily Betaherpesvirinae, family Orthoherpesviridae), and that MnatCMV1 and MnatCMV2 are more closely related to each other than to MnatCMV3. The availability of MnatCMV isolates and the characterization of their genomes will serve as the prelude to the generation of a MnatCMV-based vaccine to target LASV in the M. natalensis reservoir.
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Affiliation(s)
- Frederick Hansen
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
- Present address: School of Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Matej Vučak
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Jenna Nichols
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Joseph Hughes
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Sidy Bane
- University of Sciences, Techniques and Technologies of Bamako, Bamako, Mali
| | - Salvatore Camiolo
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Present address: BioSpyder Technologies Inc., Carlsbad, CA, USA
| | | | | | | | - Baca Chan
- School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia
- Institute for Respiratory Health, University of Western Australia, Crawley, WA, Australia
| | | | - Nafomon Sogoba
- University of Sciences, Techniques and Technologies of Bamako, Bamako, Mali
| | - Daniel N. Streblow
- Vaccine and Gene Therapy Institute and Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - Sebastian Voigt
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Lisa Oestereich
- Bernhard Nocht Institute for Tropical Medicine and German Center for Infectious Research (DZIF), Partner Sites Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany, Germany
| | - Bernhard Ehlers
- Division 12, Measles, Mumps, Rubella and Viruses Affecting Immunocompromised Patients, Robert Koch Institute, Berlin, Germany
| | - Alec J. Redwood
- School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia
- Institute for Respiratory Health, University of Western Australia, Crawley, WA, Australia
| | - Heinz Feldmann
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | | | - Kyle Rosenke
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Michael A. Jarvis
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
- The Vaccine Group Ltd, Plymouth, Devon, UK
- School of Biomedical Sciences, University of Plymouth, Plymouth, UK
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Weidinger P, Kolodziejek J, Khafaga T, Loney T, Howarth B, Sher Shah M, Abou Tayoun A, Alsheikh-Ali A, Camp JV, Nowotny N. Potentially Zoonotic Viruses in Wild Rodents, United Arab Emirates, 2019—A Pilot Study. Viruses 2023; 15:v15030695. [PMID: 36992404 PMCID: PMC10054371 DOI: 10.3390/v15030695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/03/2023] [Accepted: 03/05/2023] [Indexed: 03/10/2023] Open
Abstract
The majority of emerging viral infectious diseases in humans originate from wildlife reservoirs, such as rodents and bats. We investigated a possible reservoir, namely wild gerbils and mice trapped in a desert reserve within the emirate of Dubai, United Arab Emirates (UAE). In total, 52 gerbils and 1 jird (Gerbillinae), 10 house mice (Mus musculus), and 1 Arabian spiny mouse (Acomys dimidiatus) were sampled. Oro-pharyngeal swabs, fecal samples, attached ticks, and organ samples (where available) were screened by (RT-q)PCR for the following viruses: Middle East respiratory syndrome-related coronavirus, Crimean-Congo hemorrhagic fever orthonairovirus, Alkhumra hemorrhagic fever virus, hantaviruses, Lymphocytic choriomeningitis mammarenavirus, Rustrela virus, poxviruses, flaviviruses, and herpesviruses. All of the samples were negative for all investigated viruses, except for herpesviruses: 19 gerbils (35.8%) and 7 house mice (70.0%) were positive. The resulting sequences were only partly identical to sequences in GenBank. Phylogenetic analysis revealed three novel betaherpesviruses and four novel gammaherpesviruses. Interestingly, species identification of the positive gerbils resulted in eight individuals clustering in a separate clade, most closely related to Dipodillus campestris, the North African gerbil, indicating either the expansion of the geographic range of this species, or the existence of a closely related, yet undiscovered species in the UAE. In conclusion, we could not find evidence of persistence or shedding of potentially zoonotic viruses in the investigated rodent cohorts of limited sample size.
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Affiliation(s)
- Pia Weidinger
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
| | - Jolanta Kolodziejek
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
| | - Tamer Khafaga
- Dubai Desert Conservation Reserve, Emirates Group, Dubai P.O. Box 686, United Arab Emirates
| | - Tom Loney
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates
| | - Brigitte Howarth
- American University in Dubai, Al Sufouh 2, Dubai P.O. Box 28282, United Arab Emirates
| | - Moayyed Sher Shah
- Dubai Desert Conservation Reserve, Emirates Group, Dubai P.O. Box 686, United Arab Emirates
| | - Ahmad Abou Tayoun
- Al Jalila Genomics Center of Excellence, Al Jalila Children’s Specialty Hospital, Dubai 7662, United Arab Emirates
- Center for Genomic Discovery, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates
| | - Alawi Alsheikh-Ali
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates
- Dubai Health Authority, Dubai P.O. Box 4545, United Arab Emirates
| | - Jeremy V. Camp
- Center for Virology, Medical University of Vienna, 1090 Vienna, Austria
| | - Norbert Nowotny
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates
- Correspondence: ; Tel.: +43-1-25077-2704
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Elste J, Chan A, Patil C, Tripathi V, Shadrack DM, Jaishankar D, Hawkey A, Mungerson MS, Shukla D, Tiwari V. Archaic connectivity between the sulfated heparan sulfate and the herpesviruses - An evolutionary potential for cross-species interactions. Comput Struct Biotechnol J 2023; 21:1030-1040. [PMID: 36733705 PMCID: PMC9880898 DOI: 10.1016/j.csbj.2023.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/04/2023] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
The structural diversity of metazoic heparan sulfate (HS) composed of unique sulfated domains is remarkably preserved among various vertebrates and invertebrate species. Interestingly the sulfated moieties of HS have been known as the key determinants generating extraordinary ligand binding sites in the HS chain to regulate multiple biological functions and homeostasis. One such ligand for 3-O sulfation in the HS chain is a glycoprotein D (gD) from an ancient herpesvirus, herpes simplex virus (HSV). This interaction between gD and 3-O sulfated HS leads to virus-cell fusion to promote HSV entry. It is quite astonishing that HSV-1, which infects two-thirds of the world population, is also capable of causing severe diseases in primates and non-primates including primitive zebrafish. Supporting evidence that HSV may cross the species barrier comes from the fact that an enzymatic modification in HS encoded by 3-O sulfotransferase-3 (3-OST-3) from a vertebrate zoonotic species enhances HSV-1 infectivity. The latter phenomenon suggests the possible role of sulfated-HS as an entry receptor during reverse zoonosis, especially during an event when humans encounter domesticated animals in proximity. In this mini-review, we explore the possibility that structural diversity in HS may have played a substantial role in species-specific adaptability for herpesviruses in general including their potential role in promoting cross-species transmission.
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Affiliation(s)
- James Elste
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA
| | - Angelica Chan
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA
| | - Chandrashekhar Patil
- Department of Ophthalmology & Visual Sciences, University of Illinois at Chicago, IL 60612, USA
| | - Vinisha Tripathi
- Mountain Vista High School, 10585 Mountain Vista Ridge, Highlands Ranch, CO 80126, USA
| | - Daniel M. Shadrack
- Department of Chemistry, Faculty of Natural and Applied Sciences, St John's University of Tanzania, Dodoma, Tanzania
| | - Dinesh Jaishankar
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Andrew Hawkey
- Department of Biomedical Sciences, Midwestern University, Downers Grove, IL 60515, USA
| | - Michelle Swanson Mungerson
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA
| | - Deepak Shukla
- Department of Ophthalmology & Visual Sciences, University of Illinois at Chicago, IL 60612, USA
| | - Vaibhav Tiwari
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine and College of Graduate Studies, Midwestern University, Downers Grove, IL 60515, USA,Corresponding author.
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Molecular Tools to Identify and Characterize Malignant Catarrhal Fever Viruses (MCFV) of Ruminants and Captive Artiodactyla. Viruses 2022; 14:v14122697. [PMID: 36560701 PMCID: PMC9787554 DOI: 10.3390/v14122697] [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: 10/14/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
The family Herpesviridae includes viruses identified in mammals, birds and reptiles. All herpesviruses share a similar structure, consisting of a large linear double-stranded DNA genome surrounded by a proteic icosahedral capsid further contained within a lipidic bilayer envelope. The continuous rise of genetic variability and the evolutionary selective pressure underlie the appearance and consolidation of novel viral strains. This applies also to several gamma(γ)-herpesviruses, whose role as primary pathogen has been often neglected and, among these to newly emerged viruses or virus variants responsible for the development of Malignant Catarrhal Fever (MCF) or MCF-like disease. The identification of γ-herpesviruses adapted to new zoological hosts requires specific molecular tools for detection and characterization. These viruses can cause MCF in livestock and wild animals, a disease generally sporadic but with serious welfare implications and which, in many cases, leads to death within a few days from the appearance of the clinical signs. In the absence of a vaccine, the first step to improve disease control is based on the improvement of molecular tools to identify and characterize these viruses, their phylogenetic relationships and evolutionary interaction with the host species. A Panherpes PCR-specific test, based on the conserved DNA polymerase gene, employing consensus/degenerate and deoxyinosine-substituted primers followed by sequencing, is still the preferred diagnostic test to confirm and characterize herpesviral infections. The drawback of this test is the amplification of a relatively short sequence, which makes phylogenetic analysis less stringent. Based on these diagnostic requirements, and with a specific focus on γ-herpesviruses, the present review aims to critically analyze the currently available methods to identify and characterize novel MCFV strains, to highlight advantages and drawbacks and to identify the gaps to be filled in order to address research priorities. Possible approaches for improving or further developing these molecular tools are also suggested.
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Ochola GO, Li B, Obanda V, Ommeh S, Ochieng H, Yang XL, Onyuok SO, Shi ZL, Agwanda B, Hu B. Discovery of novel DNA viruses in small mammals from Kenya. Virol Sin 2022; 37:491-502. [PMID: 35680114 PMCID: PMC9437603 DOI: 10.1016/j.virs.2022.06.001] [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: 11/18/2021] [Accepted: 05/17/2022] [Indexed: 11/29/2022] Open
Abstract
Emergence and re-emergence of infectious diseases of wildlife origin have led pre-emptive pathogen surveillances in animals to be a public health priority. Rodents and shrews are among the most numerically abundant vertebrate taxa and are known as natural hosts of important zoonotic viruses. Many surveillance programs focused more on RNA viruses. In comparison, much less is known about DNA viruses harbored by these small mammals. To fill this knowledge gap, tissue specimens of 232 animals including 226 rodents, five shrews and one hedgehog were collected from 5 counties in Kenya and tested for the presence of DNA viruses belonging to 7 viral families by PCR. Diverse DNA sequences of adenoviruses, adeno-associated viruses, herpesviruses and polyomaviruses were detected. Phylogenetic analyses revealed that most of these viruses showed distinction from previously described viruses and formed new clusters. Furthermore, this is the first report of the discovery and full-length genome characterization of a polyomavirus in Lemniscomys species. This novel polyomavirus, named LsPyV KY187, has less than 60% amino acid sequence identity to the most related Glis glis polyomavirus 1 and Sciurus carolinensis polyomavirus 1 in both large and small T-antigen proteins and thus can be putatively allocated to a novel species within Betapolyomavirus. Our findings help us better understand the genetic diversity of DNA viruses in rodent and shrew populations in Kenya and provide new insights into the evolution of those DNA viruses in their small mammal reservoirs. It demonstrates the necessity of ongoing pathogen discovery studies targeting rodent-borne viruses in East Africa.
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Affiliation(s)
- Griphin Ochieng Ochola
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China; Mammalogy Section, National Museums of Kenya, Nairobi, 40658-00100, Kenya; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bei Li
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Vincent Obanda
- Veterinary Services Department, Kenya Wildlife Service, Nairobi, 40241-00100, Kenya
| | - Sheila Ommeh
- Institute of Biotechnology Research, Jomo Kenyatta University of Science and Technology, Nairobi, 62000-00200, Kenya
| | - Harold Ochieng
- Mammalogy Section, National Museums of Kenya, Nairobi, 40658-00100, Kenya
| | - Xing-Lou Yang
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Samson Omondi Onyuok
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China; Mammalogy Section, National Museums of Kenya, Nairobi, 40658-00100, Kenya
| | - Zheng-Li Shi
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Bernard Agwanda
- Mammalogy Section, National Museums of Kenya, Nairobi, 40658-00100, Kenya.
| | - Ben Hu
- CAS Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China.
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Bonfim FFDO, Mares-Guia MAMDM, Horta MA, Chame M, Lopes ADO, Santos R, Matias CAR, Pinto MA, de Filippis AMB, de Paula VS. Callitrichine gammaherpesvirus 3 and Human alphaherpesvirus 1 in New World Primate negative for yellow fever virus in Rio de Janeiro, Brazil. Mem Inst Oswaldo Cruz 2022; 117:e210258. [PMID: 35416837 PMCID: PMC9005061 DOI: 10.1590/0074-02760210258] [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: 08/02/2021] [Accepted: 03/07/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Herpesvirus transmission between humans and non-human primate (NHP) can occur through contact scratches with lesions, infected saliva, and mainly through contaminated food. Therefore, cross-infection can lead to severe illness or even death for both the animal and human. In 2017, during the yellow fever (YF) outbreak in Brazil, species of the New World Primates (NWP) from Rio de Janeiro state, tested negative for yellow fever virus (YFV) detection. OBJECTIVES To evaluate herpesvirus in the population NWP in Rio de Janeiro. METHODS To investigate, liver samples of 283 NWP, from several regions of the state of Rio de Janeiro, were tested for the herpesvirus family using a Pan-polymerase chain reaction (Pan-PCR) and sequencing. FINDINGS 34.6% (98/283) tested positive for at least one herpesvirus; 29.3% (83/283) tested positive to Human alphaherpesvirus 1 (HSV-1), this virus from humans can be lethal to New World monkey; 13% (37/283) were detected Callitrichine gammaherpesvirus 3 (CalHV-3), responsible for lymphoproliferative disease that can be fatal in NWP. In addition, CalHV-3 / HSV-1 co-infection was in 11.6% (33/283) of the samples. MAIN CONCLUSIONS Pan-herpesvirus was useful to identify species-specific herpesviruses and virus from human that can infect animals. Furthermore, during an outbreak of YF other infections should be monitored.
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Affiliation(s)
| | | | - Marco Aurélio Horta
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Flavivírus Molecular, Rio de Janeiro, RJ, Brasil
| | - Marcia Chame
- Fundação Oswaldo Cruz-Fiocruz, Plataforma Institucional de Biodiversidade e Saúde Silvestre, Rio de Janeiro, RJ, Brasil
| | - Amanda de Oliveira Lopes
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Virologia Molecular, Rio de Janeiro, RJ, Brasil
| | - Rafael Santos
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Doenças Parasitárias, Rio de Janeiro, RJ, Brasil
| | - Carlos Alexandre Rey Matias
- Universidade Federal Rural do Rio de Janeiro, Instituto de Veterinária, Departamento de Epidemiologia e Saúde Pública, Rio de Janeiro, RJ, Brasil
| | - Marcelo Alves Pinto
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Desenvolvimento Tecnológico em Virologia, Rio de Janeiro, RJ, Brasil
| | - Ana Maria Bispo de Filippis
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Flavivírus Molecular, Rio de Janeiro, RJ, Brasil
| | - Vanessa Salete de Paula
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Virologia Molecular, Rio de Janeiro, RJ, Brasil
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10
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Herpesvirus Infection in a Breeding Population of Two Coexisting Strix Owls. Animals (Basel) 2021; 11:ani11092519. [PMID: 34573485 PMCID: PMC8464810 DOI: 10.3390/ani11092519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/15/2021] [Accepted: 08/23/2021] [Indexed: 01/06/2023] Open
Abstract
Simple Summary Although infection with herpesvirus in owls has commonly been described as a highly lethal disease, there is very little information about the presence of herpesvirus and its potential impact in living owls in wild populations. Our study detected herpesvirus in a breeding population of Ural owls, which showed no clinical signs of illness nor productivity deviances (i.e., in clutch and brood size). Herpesvirus was detected in Ural owl adults and chicks, but not in a young tawny owl (despite the fact that they were in same nest and in persistent contact). Furthermore, herpesviruses were also detected in yellow-necked mice as both owls’ main prey. However, comparison of the herpesviruses detected showed that different herpesviruses are present in the owls and mice. The results of this study show that herpesvirus may be present in a Ural owl breeding population without any consequences on health and breeding performance. However, in the case of tawny owls, it seems that they are not susceptible to infection, which could be related to their polymorphism. It seems that small rodents are not a source of herpesvirus infection in owls and that the probable herpesvirus transmission pathway takes place intraspecifically, mostly from adults to young. Abstract Birds are a frequent host of a large variety of herpesviruses, and infections in them may go unnoticed or may result in fatal disease. In wild breeding populations of owls, there is very limited information about the presence, impact, and potential transmission of herpesvirus. The herpesvirus partial DNA polymerase gene was detected using polymerase chain reaction in oropharyngeal swabs of 16 out of 170 owls examined that were captured in or near nest boxes. Herpesvirus was detected in Ural owls (Strix uralensis), in both adults and young, but not in tawny owls (Strix aluco). In yellow-necked mice (Apodemus flavicollis), as the main prey of tawny owls and Ural owls in the area, herpesvirus was detected in the organs of 2 out of 40 mice captured at the same locations as the owls. Phylogenetic analysis showed that the herpesvirus sequences detected in the Ural owls differed from the herpesvirus sequences detected in the yellow-necked mice. The results indicate that herpesvirus infection exists in the breeding wild Ural owl population. However, herpesvirus-infected owls did not show any clinical or productivity deviances and, based on a phylogenetic comparison of detected herpesvirus sequences and sequences obtained from Genbank database, it seems that mice and other rodents are not the source of owl infections. The most probable transmission pathway is intraspecific, especially from adults to their chicks, but the origin of herpesvirus in owls remains to be investigated.
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11
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Presence and Diversity of Different Enteric Viruses in Wild Norway Rats ( Rattus norvegicus). Viruses 2021; 13:v13060992. [PMID: 34073462 PMCID: PMC8227696 DOI: 10.3390/v13060992] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/21/2021] [Accepted: 05/23/2021] [Indexed: 02/07/2023] Open
Abstract
Rodents are common reservoirs for numerous zoonotic pathogens, but knowledge about diversity of pathogens in rodents is still limited. Here, we investigated the occurrence and genetic diversity of enteric viruses in 51 Norway rats collected in three different countries in Europe. RNA of at least one virus was detected in the intestine of 49 of 51 animals. Astrovirus RNA was detected in 46 animals, mostly of rat astroviruses. Human astrovirus (HAstV-8) RNA was detected in one, rotavirus group A (RVA) RNA was identified in eleven animals. One RVA RNA could be typed as rat G3 type. Rat hepatitis E virus (HEV) RNA was detected in five animals. Two entire genome sequences of ratHEV were determined. Human norovirus RNA was detected in four animals with the genotypes GI.P4-GI.4, GII.P33-GII.1, and GII.P21. In one animal, a replication competent coxsackievirus A20 strain was detected. Additionally, RNA of an enterovirus species A strain was detected in the same animal, albeit in a different tissue. The results show a high detection rate and diversity of enteric viruses in Norway rats in Europe and indicate their significance as vectors for zoonotic transmission of enteric viruses. The detailed role of Norway rats and transmission pathways of enteric viruses needs to be investigated in further studies.
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12
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Calvignac-Spencer S, Kouadio L, Couacy-Hymann E, Sogoba N, Rosenke K, Davison AJ, Leendertz F, Jarvis MA, Feldmann H, Ehlers B. Multiple DNA viruses identified in multimammate mouse (Mastomys natalensis) populations from across regions of sub-Saharan Africa. Arch Virol 2020; 165:2291-2299. [PMID: 32754877 PMCID: PMC7497350 DOI: 10.1007/s00705-020-04738-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/17/2020] [Indexed: 11/29/2022]
Abstract
The multimammate mouse (Mastomys natalensis; M. natalensis) serves as the main reservoir for the zoonotic arenavirus Lassa virus (LASV), and this has led to considerable investigation into the distribution of LASV and other related arenaviruses in this host species. In contrast to the situation with arenaviruses, the presence of other viruses in M. natalensis remains largely unexplored. In this study, herpesviruses and polyomaviruses were identified and partially characterized by PCR methods, sequencing, and phylogenetic analysis. In tissues sampled from M. natalensis populations in Côte d'Ivoire and Mali, six new DNA viruses (four betaherpesviruses, one gammaherpesvirus and one polyomavirus) were identified. Phylogenetic analysis based on glycoprotein B amino acid sequences showed that the herpesviruses clustered with cytomegaloviruses and rhadinoviruses of multiple rodent species. The complete circular genome of the newly identified polyomavirus was amplified by PCR. Amino acid sequence analysis of the large T antigen or VP1 showed that this virus clustered with a known polyomavirus from a house mouse (species Mus musculus polyomavirus 1). These two polyomaviruses form a clade with other rodent polyomaviruses, and the newly identified virus represents the third known polyomavirus of M. natalensis. This study represents the first identification of herpesviruses and the discovery of a novel polyomavirus in M. natalensis. In contrast to arenaviruses, we anticipate that these newly identified viruses represent a low zoonotic risk due to the normally highly restricted specificity of members of these two DNA virus families to their individual mammalian host species.
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Affiliation(s)
| | - Léonce Kouadio
- LANADA/Central Laboratory for Animal Diseases, Bingerville, Côte d'Ivoire.,P3 "Epidemiology of Highly Pathogenic Microorganisms", Robert Koch-Institute, Berlin, Germany
| | | | - Nafomon Sogoba
- Faculty of Medicine and Odontostomatology, Malaria Research and Training Center, International Center of Excellence in Research, University of Sciences, Techniques and Technologies of Bamako, Bamako, Mali
| | - Kyle Rosenke
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Andrew J Davison
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Fabian Leendertz
- P3 "Epidemiology of Highly Pathogenic Microorganisms", Robert Koch-Institute, Berlin, Germany
| | - Michael A Jarvis
- School of Biomedical Sciences, University of Plymouth, Plymouth, UK.,The Vaccine Group Ltd, Plymouth, UK
| | - Heinz Feldmann
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Bernhard Ehlers
- Division 12 "Measles, Mumps, Rubella, and Viruses Affecting Immunocompromised Patients", Robert Koch Institut, Berlin, Germany.
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13
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Isolation and characterization of new Puumala orthohantavirus strains from Germany. Virus Genes 2020; 56:448-460. [PMID: 32328924 PMCID: PMC7329759 DOI: 10.1007/s11262-020-01755-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/03/2020] [Indexed: 12/28/2022]
Abstract
Orthohantaviruses are re-emerging rodent-borne pathogens distributed all over the world. Here, we report the isolation of a Puumala orthohantavirus (PUUV) strain from bank voles caught in a highly endemic region around the city Osnabrück, north-west Germany. Coding and non-coding sequences of all three segments (S, M, and L) were determined from original lung tissue, after isolation and after additional passaging in VeroE6 cells and a bank vole-derived kidney cell line. Different single amino acid substitutions were observed in the RNA-dependent RNA polymerase (RdRP) of the two stable PUUV isolates. The PUUV strain from VeroE6 cells showed a lower titer when propagated on bank vole cells compared to VeroE6 cells. Additionally, glycoprotein precursor (GPC)-derived virus-like particles of a German PUUV sequence allowed the generation of monoclonal antibodies that allowed the reliable detection of the isolated PUUV strain in the immunofluorescence assay. In conclusion, this is the first isolation of a PUUV strain from Central Europe and the generation of glycoprotein-specific monoclonal antibodies for this PUUV isolate. The obtained virus isolate and GPC-specific antibodies are instrumental tools for future reservoir host studies.
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14
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Search for polyoma-, herpes-, and bornaviruses in squirrels of the family Sciuridae. Virol J 2020; 17:42. [PMID: 32220234 PMCID: PMC7099801 DOI: 10.1186/s12985-020-01310-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 02/28/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Squirrels (family Sciuridae) are globally distributed members of the order Rodentia with wildlife occurrence in indigenous and non-indigenous regions (as invasive species) and frequent presence in zoological gardens and other holdings. Multiple species introductions, strong inter-species competition as well as the recent discovery of a novel zoonotic bornavirus resulted in increased research interest on squirrel pathogens. Therefore we aimed to test a variety of squirrel species for representatives of three virus families. METHODS Several species of the squirrel subfamilies Sciurinae, Callosciurinae and Xerinae were tested for the presence of polyomaviruses (PyVs; family Polyomaviridae) and herpesviruses (HVs; family Herpesviridae), using generic nested polymerase chain reaction (PCR) with specificity for the PyV VP1 gene and the HV DNA polymerase (DPOL) gene, respectively. Selected animals were tested for the presence of bornaviruses (family Bornaviridae), using both a broad-range orthobornavirus- and a variegated squirrel bornavirus 1 (VSBV-1)-specific reverse transcription-quantitative PCR (RT-qPCR). RESULTS In addition to previously detected bornavirus RNA-positive squirrels no more animals tested positive in this study, but four novel PyVs, four novel betaherpesviruses (BHVs) and six novel gammaherpesviruses (GHVs) were identified. For three PyVs, complete genomes could be amplified with long-distance PCR (LD-PCR). Splice sites of the PyV genomes were predicted in silico for large T antigen, small T antigen, and VP2 coding sequences, and experimentally confirmed in Vero and NIH/3T3 cells. Attempts to extend the HV DPOL sequences in upstream direction resulted in contiguous sequences of around 3.3 kilobase pairs for one BHV and two GHVs. Phylogenetic analysis allocated the novel squirrel PyVs to the genera Alpha- and Betapolyomavirus, the BHVs to the genus Muromegalovirus, and the GHVs to the genera Rhadinovirus and Macavirus. CONCLUSIONS This is the first report on molecular identification and sequence characterization of PyVs and HVs and the detection of bornavirus coinfections with PyVs or HVs in two squirrel species. Multiple detection of PyVs and HVs in certain squirrel species exclusively indicate their potential host association to a single squirrel species. The novel PyVs and HVs might serve for a better understanding of virus evolution in invading host species in the future.
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15
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Wang Y, Nian H, Li Z, Wang W, Wang X, Cui Y. Human encephalitis complicated with bilateral acute retinal necrosis associated with pseudorabies virus infection: A case report. Int J Infect Dis 2019; 89:51-54. [DOI: 10.1016/j.ijid.2019.09.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 09/20/2019] [Accepted: 09/20/2019] [Indexed: 11/28/2022] Open
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16
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Radaelli E, Santagostino SF, Sellers RS, Brayton CF. Immune Relevant and Immune Deficient Mice: Options and Opportunities in Translational Research. ILAR J 2019; 59:211-246. [PMID: 31197363 PMCID: PMC7114723 DOI: 10.1093/ilar/ily026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/03/2018] [Indexed: 12/29/2022] Open
Abstract
In 1989 ILAR published a list and description of immunodeficient rodents used in research. Since then, advances in understanding of molecular mechanisms; recognition of genetic, epigenetic microbial, and other influences on immunity; and capabilities in manipulating genomes and microbiomes have increased options and opportunities for selecting mice and designing studies to answer important mechanistic and therapeutic questions. Despite numerous scientific breakthroughs that have benefitted from research in mice, there is debate about the relevance and predictive or translational value of research in mice. Reproducibility of results obtained from mice and other research models also is a well-publicized concern. This review summarizes resources to inform the selection and use of immune relevant mouse strains and stocks, aiming to improve the utility, validity, and reproducibility of research in mice. Immune sufficient genetic variations, immune relevant spontaneous mutations, immunodeficient and autoimmune phenotypes, and selected induced conditions are emphasized.
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Affiliation(s)
- Enrico Radaelli
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sara F Santagostino
- Department of Safety Assessment, Genentech, Inc., South San Francisco, California
| | | | - Cory F Brayton
- Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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17
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Novel Polyomaviruses in Mammals from Multiple Orders and Reassessment of Polyomavirus Evolution and Taxonomy. Viruses 2019; 11:v11100930. [PMID: 31658738 PMCID: PMC6833039 DOI: 10.3390/v11100930] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/04/2019] [Accepted: 10/07/2019] [Indexed: 12/14/2022] Open
Abstract
As the phylogenetic organization of mammalian polyomaviruses is complex and currently incompletely resolved, we aimed at a deeper insight into their evolution by identifying polyomaviruses in host orders and families that have either rarely or not been studied. Sixteen unknown and two known polyomaviruses were identified in animals that belong to 5 orders, 16 genera, and 16 species. From 11 novel polyomaviruses, full genomes could be determined. Splice sites were predicted for large and small T antigen (LTAg, STAg) coding sequences (CDS) and examined experimentally in transfected cell culture. In addition, splice sites of seven published polyomaviruses were analyzed. Based on these data, LTAg and STAg annotations were corrected for 10/86 and 74/86 published polyomaviruses, respectively. For 25 polyomaviruses, a spliced middle T CDS was observed or predicted. Splice sites that likely indicate expression of additional, alternative T antigens, were experimentally detected for six polyomaviruses. In contrast to all other mammalian polyomaviruses, three closely related cetartiodactyl polyomaviruses display two introns within their LTAg CDS. In addition, the VP2 of Glis glis (edible dormouse) polyomavirus 1 was observed to be encoded by a spliced transcript, a unique experimental finding within the Polyomaviridae family. Co-phylogenetic analyses based on LTAg CDS revealed a measurable signal of codivergence when considering all mammalian polyomaviruses, most likely driven by relatively recent codivergence events. Lineage duplication was the only other process whose influence on polyomavirus evolution was unambiguous. Finally, our analyses suggest that an update of the taxonomy of the family is required, including the creation of novel genera of mammalian and non-mammalian polyomaviruses.
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18
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Binder F, Lenk M, Weber S, Stoek F, Dill V, Reiche S, Riebe R, Wernike K, Hoffmann D, Ziegler U, Adler H, Essbauer S, Ulrich RG. Common vole (Microtus arvalis) and bank vole (Myodes glareolus) derived permanent cell lines differ in their susceptibility and replication kinetics of animal and zoonotic viruses. J Virol Methods 2019; 274:113729. [PMID: 31513859 DOI: 10.1016/j.jviromet.2019.113729] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/15/2019] [Accepted: 09/07/2019] [Indexed: 11/16/2022]
Abstract
Pathogenesis and reservoir host adaptation of animal and zoonotic viruses are poorly understood due to missing adequate cell culture and animal models. The bank vole (Myodes glareolus) and common vole (Microtus arvalis) serve as hosts for a variety of zoonotic pathogens. For a better understanding of virus association to a putative animal host, we generated two novel cell lines from bank voles of different evolutionary lineages and two common vole cell lines and assayed their susceptibility, replication and cytopathogenic effect (CPE) formation for rodent-borne, suspected to be rodent-associated or viruses with no obvious rodent association. Already established bank vole cell line BVK168, used as control, was susceptible to almost all viruses tested and efficiently produced infectious virus for almost all of them. The Puumala orthohantavirus strain Vranica/Hällnäs showed efficient replication in a new bank vole kidney cell line, but not in the other four bank and common vole cell lines. Tula orthohantavirus replicated in the kidney cell line of common voles, but was hampered in its replication in the other cell lines. Several zoonotic viruses, such as Cowpox virus, Vaccinia virus, Rift Valley fever virus, and Encephalomyocarditis virus 1 replicated in all cell lines with CPE formation. West Nile virus, Usutu virus, Sindbis virus and Tick-borne encephalitis virus replicated only in a part of the cell lines, perhaps indicating cell line specific factors involved in replication. Rodent specific viruses differed in their replication potential: Murine gammaherpesvirus-68 replicated in the four tested vole cell lines, whereas murine norovirus failed to infect almost all cell lines. Schmallenberg virus and Foot-and-mouth disease virus replicated in some of the cell lines, although these viruses have never been associated to rodents. In conclusion, these newly developed cell lines may represent useful tools to study virus-cell interactions and to identify and characterize host cell factors involved in replication of rodent associated viruses.
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Affiliation(s)
- Florian Binder
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, Südufer 10, 17493 Greifswald - Insel Riems, Germany
| | - Matthias Lenk
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Department of Experimental Animal Facilities and Biorisk Management, Bio-Bank, Collection of Cell Lines in Veterinary Virology (CCLV), Südufer 10, 17493, Greifswald - Insel Riems, Germany
| | - Saskia Weber
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Diagnostic Virology, Südufer 10, 17493 Greifswald - Insel Riems, Germany
| | - Franziska Stoek
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, Südufer 10, 17493 Greifswald - Insel Riems, Germany
| | - Veronika Dill
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Diagnostic Virology, Südufer 10, 17493 Greifswald - Insel Riems, Germany
| | - Sven Reiche
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Department of Experimental Animal Facilities and Biorisk Management, Bio-Bank, Collection of Cell Lines in Veterinary Virology (CCLV), Südufer 10, 17493, Greifswald - Insel Riems, Germany
| | - Roland Riebe
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Department of Experimental Animal Facilities and Biorisk Management, Bio-Bank, Collection of Cell Lines in Veterinary Virology (CCLV), Südufer 10, 17493, Greifswald - Insel Riems, Germany
| | - Kerstin Wernike
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Diagnostic Virology, Südufer 10, 17493 Greifswald - Insel Riems, Germany
| | - Donata Hoffmann
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Diagnostic Virology, Südufer 10, 17493 Greifswald - Insel Riems, Germany
| | - Ute Ziegler
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, Südufer 10, 17493 Greifswald - Insel Riems, Germany; German Center for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Insel Riems, Germany
| | - Heiko Adler
- Comprehensive Pneumology Center, Research Unit Lung Repair and Regeneration, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Marchioninistrasse 25, 81377 Munich, Germany; University Hospital Grosshadern, Ludwig-Maximilians-University, 81377 Munich, Germany
| | - Sandra Essbauer
- Bundeswehr Institute of Microbiology, Department Virology and Rickettsiology, Neuherbergstr. 11, 80937 Munich, Germany
| | - Rainer G Ulrich
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, Südufer 10, 17493 Greifswald - Insel Riems, Germany; German Center for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Insel Riems, Germany.
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19
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Murthy S, O'Brien K, Agbor A, Angedakin S, Arandjelovic M, Ayimisin EA, Bailey E, Bergl RA, Brazzola G, Dieguez P, Eno-Nku M, Eshuis H, Fruth B, Gillespie TR, Ginath Y, Gray M, Herbinger I, Jones S, Kehoe L, Kühl H, Kujirakwinja D, Lee K, Madinda NF, Mitamba G, Muhindo E, Nishuli R, Ormsby LJ, Petrzelkova KJ, Plumptre AJ, Robbins MM, Sommer V, Ter Heegde M, Todd A, Tokunda R, Wessling E, Jarvis MA, Leendertz FH, Ehlers B, Calvignac-Spencer S. Cytomegalovirus distribution and evolution in hominines. Virus Evol 2019; 5:vez015. [PMID: 31384482 PMCID: PMC6671425 DOI: 10.1093/ve/vez015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Herpesviruses are thought to have evolved in very close association with their hosts. This is notably the case for cytomegaloviruses (CMVs; genus Cytomegalovirus) infecting primates, which exhibit a strong signal of co-divergence with their hosts. Some herpesviruses are however known to have crossed species barriers. Based on a limited sampling of CMV diversity in the hominine (African great ape and human) lineage, we hypothesized that chimpanzees and gorillas might have mutually exchanged CMVs in the past. Here, we performed a comprehensive molecular screening of all 9 African great ape species/subspecies, using 675 fecal samples collected from wild animals. We identified CMVs in eight species/subspecies, notably generating the first CMV sequences from bonobos. We used this extended dataset to test competing hypotheses with various degrees of co-divergence/number of host switches while simultaneously estimating the dates of these events in a Bayesian framework. The model best supported by the data involved the transmission of a gorilla CMV to the panine (chimpanzee and bonobo) lineage and the transmission of a panine CMV to the gorilla lineage prior to the divergence of chimpanzees and bonobos, more than 800,000 years ago. Panine CMVs then co-diverged with their hosts. These results add to a growing body of evidence suggesting that viruses with a double-stranded DNA genome (including other herpesviruses, adenoviruses, and papillomaviruses) often jumped between hominine lineages over the last few million years.
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Affiliation(s)
- Sripriya Murthy
- Division 12 "Measles, Mumps, Rubella and Viruses Affecting Immune-Compromised Patients" Robert Koch Institute, Berlin, Germany
| | - Kathryn O'Brien
- School of Biomedical and Healthcare Sciences, University of Plymouth, Devon, UK
| | - Anthony Agbor
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany.,African Parks Network, Lonehill, Republic of South Africa
| | - Samuel Angedakin
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | - Mimi Arandjelovic
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | | | - Emma Bailey
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | | | - Gregory Brazzola
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | - Paula Dieguez
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | | | - Henk Eshuis
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | - Barbara Fruth
- Faculty of Science, School of Natural Sciences and hPsychology, Liverpool John Moores University, Liverpool, UK.,Centre for Research and Conservation, Royal Zoological Society of Antwerp, Antwerp, Belgium
| | - Thomas R Gillespie
- Department of Environmental Sciences and Program in Population Biology, Ecology, and Evolutionary Biology, Emory University, Atlanta, USA
| | - Yisa Ginath
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | - Maryke Gray
- International Gorilla Conservation Programme, Kigali, Rwanda.,Batavia Coast Maritime Institute, Geraldton, WA, Australia
| | | | - Sorrel Jones
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany.,Royal Holloway, University of London, Egham, UK
| | - Laura Kehoe
- Wild Chimpanzee Foundation (WCF), Leipzig, Germany.,Department of Biology, University of Victoria, Victoria, Canada.,Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, Canada
| | - Hjalmar Kühl
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany.,German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
| | | | - Kevin Lee
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany.,School of Human Evolution and Social Change, Arizona State University, Tempe, USA
| | - Nadège F Madinda
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany.,Epidemiology of highly pathogenic microorganisms, Robert Koch Institute, Berlin, Germany
| | | | | | - Radar Nishuli
- Réserve de Faune à Okapis, Institut Congolais pour la Conservation de la Nature, Kinshasa, Democratic Republic of the Congo
| | - Lucy J Ormsby
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | - Klara J Petrzelkova
- Institute of Vertebrate Biology, Academy of Sciences, Brno, Czech Republic.,Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic.,Biology Centre, Institute of Parasitology, Academy of Sciences of the Czech Republic, Ceske Budejovice, Czech Republic.,Liberec Zoo, Liberec, Czech Republic
| | - Andrew J Plumptre
- Wildlife Conservation Society, NY, USA.,KBA Secretariat, c/o BirdLife International, Cambridge, UK.,Zoology Department, Conservation Science Group, University of Cambridge, Cambridge, UK
| | - Martha M Robbins
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany
| | - Volker Sommer
- Gashaka Primate Project, Nigeria c/o Department of Anthropology, University College London, London, UK
| | - Martijn Ter Heegde
- Epidemiology of highly pathogenic microorganisms, Robert Koch Institute, Berlin, Germany
| | - Angelique Todd
- Dzanga Sangha Protected Areas, WWF Central African Republic, Bangui, Central African Republic
| | - Raymond Tokunda
- Institute of Vertebrate Biology, Academy of Sciences, Brno, Czech Republic
| | - Erin Wessling
- Max Planck Institute for Evolutionary Anthropology (MPI EVA), Leipzig, Germany.,Dzanga Sangha Protected Areas, WWF Central African Republic, Bangui, Central African Republic
| | - Michael A Jarvis
- School of Biomedical and Healthcare Sciences, University of Plymouth, Devon, UK
| | - Fabian H Leendertz
- Epidemiology of highly pathogenic microorganisms, Robert Koch Institute, Berlin, Germany
| | - Bernhard Ehlers
- Division 12 "Measles, Mumps, Rubella and Viruses Affecting Immune-Compromised Patients" Robert Koch Institute, Berlin, Germany
| | - Sébastien Calvignac-Spencer
- Epidemiology of highly pathogenic microorganisms, Robert Koch Institute, Berlin, Germany.,Viral Evolution, Robert Koch Institute, Berlin, Germany
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20
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Hendrikse LD, Kambli A, Kayko C, Canuti M, Rodrigues B, Stevens B, Vashon J, Lang AS, Needle DB, Troyer RM. Identification of a Novel Gammaherpesvirus in Canada lynx ( Lynx canadensis). Viruses 2019; 11:v11040363. [PMID: 31010021 PMCID: PMC6520957 DOI: 10.3390/v11040363] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/15/2019] [Accepted: 04/17/2019] [Indexed: 12/25/2022] Open
Abstract
Gammaherpesviruses (GHVs) infect many animal species and are associated with lymphoproliferative disorders in some. Previously, we identified several novel GHVs in North American felids; however, a GHV had never been identified in Canada lynx (Lynx canadensis). We, therefore, hypothesized the existence of an unidentified GHV in lynx. Using degenerate nested and subsequently virus-specific PCR, we amplified and sequenced 3.4 kb of DNA from a novel GHV in lynx, which we named Lynx canadensis gammaherpesvirus 1 (LcaGHV1). Phylogenetic analysis determined that LcaGHV1 is a distinct GHV species belonging to the genus Percavirus. We then estimated the prevalence of LcaGHV1 in lynx by developing a PCR-based assay and detected LcaGHV1 DNA in 36% (95% CI: 22-53%) of lynx spleen DNA samples from Maine, USA and 17% (95% CI: 8-31%) from Newfoundland, Canada. The LcaGHV1 DNA sequences from Maine and Newfoundland lynx were nearly identical to each other (two nucleotide substitutions in 3.4 kb), suggesting that the unique lynx subspecies present on the island of Newfoundland (Lynx canadensis subsolanus) is infected with virus that very closely resembles virus found in mainland lynx. The potential ecologic and pathologic consequences of this novel virus for Canada lynx populations warrant further study.
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Affiliation(s)
- Liam D Hendrikse
- Department of Microbiology and Immunology, University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada.
| | - Ankita Kambli
- Department of Microbiology and Immunology, University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada.
| | - Caroline Kayko
- Map and Data Centre, Western Libraries, University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada.
| | - Marta Canuti
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Ave., St. John's, NF A1B 3X9, Canada.
| | - Bruce Rodrigues
- Wildlife Division, Newfoundland and Labrador Department of Fisheries and Land Resources, P.O. Box 2007, Corner Brook, NF A2H 7S1, Canada.
| | - Brian Stevens
- New Hampshire Veterinary Diagnostic Laboratory, College of Life Sciences and Agriculture, University of New Hampshire, 21 Botanical Lane, Durham, NH 03824, USA.
- Canadian Wildlife Health Cooperative⁻Ontario/Nunavut, Guelph, ON N1G 2W1, Canada.
| | - Jennifer Vashon
- Maine Department of Inland Fisheries and Wildlife, 650 State St., Bangor, ME 04401, USA.
| | - Andrew S Lang
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Ave., St. John's, NF A1B 3X9, Canada.
| | - David B Needle
- New Hampshire Veterinary Diagnostic Laboratory, College of Life Sciences and Agriculture, University of New Hampshire, 21 Botanical Lane, Durham, NH 03824, USA.
| | - Ryan M Troyer
- Department of Microbiology and Immunology, University of Western Ontario, 1151 Richmond St., London, ON N6A 5C1, Canada.
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21
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Diverse Beta- and Gammaherpesviruses in Neotropical Rodents from Costa Rica. J Wildl Dis 2019; 55:663-667. [PMID: 30694725 DOI: 10.7589/2018-05-117] [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]
Abstract
Neotropical wild rodents from Costa Rica were analyzed for the presence of herpesviruses (order Herpesvirales, family Herpesviridae). Using a broadly generic PCR, herpesvirus sequences were detected in 5% (8/160) of liver and heart samples: seven putative gammaherpesviruses in samples from Talamancan oryzomys (Nephelomys devius), sprightly colilargo (Oligoryzomys vegetus), Mexican deer mouse (Peromyscus nudipes), and Chiriqui harvest mouse (Reithrodontomys creper) and one putative betaherpesvirus in long-tailed singing mouse (Scotinomys xerampelinus). Results from this study could guide ecological investigations targeting the prevalence and host associations of herpesviruses in wild rodents from Costa Rica.
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22
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Sorel O, Dewals BG. The Critical Role of Genome Maintenance Proteins in Immune Evasion During Gammaherpesvirus Latency. Front Microbiol 2019; 9:3315. [PMID: 30687291 PMCID: PMC6333680 DOI: 10.3389/fmicb.2018.03315] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/20/2018] [Indexed: 12/25/2022] Open
Abstract
Gammaherpesviruses are important pathogens that establish latent infection in their natural host for lifelong persistence. During latency, the viral genome persists in the nucleus of infected cells as a circular episomal element while the viral gene expression program is restricted to non-coding RNAs and a few latency proteins. Among these, the genome maintenance protein (GMP) is part of the small subset of genes expressed in latently infected cells. Despite sharing little peptidic sequence similarity, gammaherpesvirus GMPs have conserved functions playing essential roles in latent infection. Among these functions, GMPs have acquired an intriguing capacity to evade the cytotoxic T cell response through self-limitation of MHC class I-restricted antigen presentation, further ensuring virus persistence in the infected host. In this review, we provide an updated overview of the main functions of gammaherpesvirus GMPs during latency with an emphasis on their immune evasion properties.
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Affiliation(s)
- Océane Sorel
- Immunology-Vaccinology, Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine-FARAH, University of Liège, Liège, Belgium.,Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA, United States
| | - Benjamin G Dewals
- Immunology-Vaccinology, Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine-FARAH, University of Liège, Liège, Belgium
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23
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Ntumvi NF, Mbala Kingebeni P, Tamoufe U, Kumakamba C, Ndze V, Ngay Lukusa I, LeBreton M, Atibu Losoma J, Le Doux Diffo J, N'Kawa F, Takuo JM, Mulembakani P, Nwobegahay J, Makuwa M, Muyembe Tamfum JJ, Gillis A, Harris S, Rimoin AW, Hoff NA, Fair JM, Monagin C, Ayukekbong J, Rubin EM, Wolfe ND, Lange CE. High Herpesvirus Diversity in Wild Rodent and Shrew Species in Central Africa. Intervirology 2018; 61:155-165. [PMID: 30448834 DOI: 10.1159/000493796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 09/16/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Herpesviruses belong to a diverse order of large DNA viruses that can cause diseases in humans and animals. With the goal of gathering information about the distribution and diversity of herpesviruses in wild rodent and shrew species in central Africa, animals in Cameroon and the Democratic Republic of the Congo were sampled and tested by PCR for the presence of herpesvirus DNA. METHODS A broad range PCRs targeting either the Polymerase or the terminase gene were used for virus detection. Amplified products from PCR were sequenced and isolates analysed for phylogenetic placement. RESULTS Overall, samples of 1,004 animals of various rodent and shrew species were tested and 24 were found to be positive for herpesvirus DNA. Six of these samples contained strains of known viruses, while the other positive samples revealed DNA sequences putatively belonging to 11 previously undescribed herpesviruses. The new isolates are beta- and gammaherpesviruses and the shrew isolates appear to form a separate cluster within the Betaherpesvirinae subfamily. CONCLUSION The diversity of viruses detected is higher than in similar studies in Europe and Asia. The high diversity of rodent and shrew species occurring in central Africa may be the reason for a higher diversity in herpesviruses in this area.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jean J Muyembe Tamfum
- Institut National de Recherche Biomédicale, Kinshasa, Democratic Republic of the Congo
| | | | | | - Anne W Rimoin
- University of California, Los Angeles, California, USA
| | - Nicole A Hoff
- University of California, Los Angeles, California, USA
| | - Joseph M Fair
- Metabiota, San Francisco, California, USA.,VIRION, New Orleans, Louisiana, USA
| | - Corina Monagin
- Metabiota, San Francisco, California, USA.,One Health Institute, School of Veterinary Medicine, University of California, Davis, California, USA
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24
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Bento MC, Canha R, Eira C, Vingada J, Nicolau L, Ferreira M, Domingo M, Tavares L, Duarte A. Herpesvirus infection in marine mammals: A retrospective molecular survey of stranded cetaceans in the Portuguese coastline. INFECTION GENETICS AND EVOLUTION 2018; 67:222-233. [PMID: 30445114 DOI: 10.1016/j.meegid.2018.11.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 11/12/2018] [Accepted: 11/12/2018] [Indexed: 10/27/2022]
Abstract
Herpesvirus (HVs) infection has already been reported in cetaceans, but available information on its epidemiology is scarce. In this study we surveyed a total of 179 cetaceans belonging to 6 different species. Samples were obtained from cetaceans stranded along the Portuguese coastline, belonging to populations that roam the north-east region of the Atlantic Ocean. Detection of HVs was performed by conventional nested PCR. Amplicons were sequenced by Sanger's method and sequences used to construct phylogenetic trees by Maximum Likelihood method. Our results show that prevalence of positive samples, among fresh carcasses, reached 14.3% (10/70) and both alpha and gammaherpesvirus were detected. Histopathology showed that herpesvirus infection varied from absence of signs compatible with disease, localized genital lesions and systemic disease. Phylogenetic analysis revealed three clusters within the alphaherpesvirus family; within the gammaherpesvirus no subdivision was detected. All clusters included animals from different species and geographic origins. In seven of the positive HVs samples, co-infections with other agents such as morbillivirus and toxoplasma gondii were detected. The viral nucleotide sequences were not assigned to a specific animal species, nor presented a given geographic distribution, which may imply a wider distribution of herpesvirus in these animal populations. Our results are also the first report of herpesvirus infection in common dolphins (Delphinus delphis), with both alpha and gammaherpesvirus detected.
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Affiliation(s)
- M C Bento
- CIISA Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal.
| | - R Canha
- CIISA Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
| | - C Eira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; Portuguese Wildlife Society, Department of Biology, Minho University, 4710-057 Braga, Portugal
| | - J Vingada
- Portuguese Wildlife Society, Department of Biology, Minho University, 4710-057 Braga, Portugal; Department of Biology and CESAM, Minho University, 4710-057 Braga, Portugal
| | - L Nicolau
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; Portuguese Wildlife Society, Department of Biology, Minho University, 4710-057 Braga, Portugal
| | - M Ferreira
- Portuguese Wildlife Society, Department of Biology, Minho University, 4710-057 Braga, Portugal; Department of Biology and CBMA, Minho University, 4710-057 Braga, Portugal
| | - M Domingo
- Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - L Tavares
- CIISA Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
| | - A Duarte
- CIISA Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
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25
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Wada Y, Sasaki M, Setiyono A, Handharyani E, Rahmadani I, Taha S, Adiani S, Latief M, Kholilullah ZA, Subangkit M, Kobayashi S, Nakamura I, Kimura T, Orba Y, Sawa H. Detection of novel gammaherpesviruses from fruit bats in Indonesia. J Med Microbiol 2018; 67:415-422. [PMID: 29458559 DOI: 10.1099/jmm.0.000689] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Bats are an important natural reservoir of zoonotic viral pathogens. We previously isolated an alphaherpesvirus in fruit bats in Indonesia, and here establish the presence of viruses belonging to other taxa of the family Herpesviridae. We screened the same fruit bat population with pan-herpesvirus PCR and discovered 68 sequences of novel gammaherpesvirus, designated 'megabat gammaherpesvirus' (MgGHV). A phylogenetic analysis of approximately 3.4 kbp of continuous MgGHV sequences encompassing the glycoprotein B gene and DNA polymerase gene revealed that the MgGHV sequences are distinct from those of other reported gammaherpesviruses. Further analysis suggested the existence of co-infections of herpesviruses in Indonesian fruit bats. Our findings extend our understanding of the infectious cycles of herpesviruses in bats in Indonesia and the phylogenetic diversity of the gammaherpesviruses.
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Affiliation(s)
- Yuji Wada
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Michihito Sasaki
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Agus Setiyono
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Ekowati Handharyani
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Ibenu Rahmadani
- Veterinary Investigation and Diagnostic Center, Bukittinggi, Indonesia
| | - Siswatiana Taha
- Faculty of Agriculture, Gorontalo State University, Gorontalo, Indonesia
| | - Sri Adiani
- Faculty of Animal Husbandry, Sam Ratulangi University, Manado, Indonesia
| | - Munira Latief
- Office of Animal Husbandry and Fisheries, Soppeng, Indonesia
| | | | - Mawar Subangkit
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Shintaro Kobayashi
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.,Present address: Laboratory of Public Health, Department of Preventive Veterinary Medicine, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Ichiro Nakamura
- Unit of International Cooperation, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takashi Kimura
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.,Present address: Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Yasuko Orba
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Hirofumi Sawa
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Hokkaido, Japan.,Global Virus Network, Baltimore, MD 21201, USA.,Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Hokkaido, Japan
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26
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Kúdelová M, Jánošová M, Belvončíková P. First detection of murine herpesvirus 68 in adult Ixodes ricinus ticks. Folia Microbiol (Praha) 2018; 63:511-515. [PMID: 29352410 DOI: 10.1007/s12223-018-0586-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 01/12/2018] [Indexed: 01/02/2023]
Abstract
Murine herpesvirus 68 (MHV-68) is a natural pathogen that infects murid rodents, which serves as hosts for Ixodes ricinus ticks. For the first time, MHV-68 was detected in immature I. ricinus ticks feeding on Lacerta viridis lizards trapped in Slovakia, which supports the idea that ticks can acquire the virus from feeding on infected hosts. The recent discovery of MHV-68 infection and MHV-68 M3 gene transcripts in Dermacentor reticulatus ticks collected in Slovakia also supports this suggestion. Here, for the first time, we report MHV-68 infection, which was detected by nested PCR, in I. ricinus adults collected from the vegetation, and the viral load in infected ticks was determined by quantitative PCR. The viral incidence in ticks was 38.1% (21/55), and the viral load varied from 1.5 × 103 to 2.85 × 104 genome copies per tick. These results suggest that the I. ricinus ticks became infected with MHV-68 from biting infected rodents; thus, I. ricinus ticks may play a role in the spread of this virus in nature.
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Affiliation(s)
- Marcela Kúdelová
- Department of Viral Immunology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia.
| | - Monika Jánošová
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
| | - Petra Belvončíková
- Department of Viral Immunology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
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27
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Cytomegaloviruses in a Community of Wild Nonhuman Primates in Taï National Park, Côte D'Ivoire. Viruses 2017; 10:v10010011. [PMID: 29286318 PMCID: PMC5795424 DOI: 10.3390/v10010011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/19/2017] [Accepted: 12/20/2017] [Indexed: 12/01/2022] Open
Abstract
Cytomegaloviruses (CMVs) are known to infect many mammals, including a number of nonhuman primates (NHPs). However, most data available arose from studies led on captive individuals and little is known about CMV diversity in wild NHPs. Here, we analyzed a community of wild nonhuman primates (seven species) in Taï National Park (TNP), Côte d’Ivoire, with two PCR systems targeting betaherpesviruses. CMV DNA was detected in 17/87 primates (4/7 species). Six novel CMVs were identified in sooty mangabeys, Campbell’s monkeys and Diana monkeys, respectively. In 3/17 positive individuals (from three NHP species), different CMVs were co-detected. A major part of the glycoprotein B coding sequences of the novel viruses was amplified and sequenced, and phylogenetic analyses were performed that included three previously discovered CMVs of western red colobus from TNP and published CMVs from other NHP species and geographic locations. We find that, despite this locally intensified sampling, NHP CMVs from TNP are completely host-specific, pinpointing the absence or rarity of cross-species transmission. We also show that on longer timescales the evolution of CMVs is characterized by frequent co-divergence with their hosts, although other processes, including lineage duplication and host switching, also have to be invoked to fully explain their evolutionary relationships.
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28
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Gertler C, Schlegel M, Linnenbrink M, Hutterer R, König P, Ehlers B, Fischer K, Ryll R, Lewitzki J, Sauer S, Baumann K, Breithaupt A, Faulde M, Teifke JP, Tautz D, Ulrich RG. Indigenous house mice dominate small mammal communities in northern Afghan military bases. BMC ZOOL 2017. [DOI: 10.1186/s40850-017-0024-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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29
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Koyama K, Horiuchi N, Hasegawa H, Katano H, Oohashi E, Watanabe K, Kobayashi Y. Cytomegalic Inclusion Disease caused by Cytomegalovirus Infection in the Salivary Glands of an African Hedgehog (Atelerix arbiventris). J Comp Pathol 2017; 157:299-302. [PMID: 29169627 DOI: 10.1016/j.jcpa.2017.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 09/19/2017] [Accepted: 09/29/2017] [Indexed: 10/18/2022]
Abstract
Cytomegalic inclusion disease (CID) in the salivary gland of African hedgehogs (Atelerix arbiventris) has been reported before, and is suspected to reflect a cytomegalovirus infection. However, a recent ultrastructural study reported that African hedgehog CID reflected oncocytic metaplasia, mimicking a cytomegalovirus infection. We examined the submandibular and sublingual salivary glands of a 1-year-old male African hedgehog. Histologically, there were multiple foci composed of cytomegalic cells with intranuclear inclusion bodies. Ultrastructurally, viral particles (109-118 nm in diameter) were observed in the nuclei of the cytomegalic cells. There were numerous vesicles containing various numbers of enveloped viruses in the cytoplasm. We also attempted to detect viral DNA fragments by degenerate polymerase chain reaction and obtained amplicons of a predicted size. Phylogenetic analysis indicated that the virus is a betaherpesvirus, comparatively related to human and rodent cytomegaloviruses. The present study suggested that African hedgehog CIDs also include those caused by the cytomegalovirus.
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Affiliation(s)
- K Koyama
- Laboratory of Veterinary Pathology, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan; The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
| | - N Horiuchi
- Laboratory of Veterinary Pathology, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - H Hasegawa
- Department of Pathology, National Institute of Infectious Diseases, Shinjuku, Japan
| | - H Katano
- Department of Pathology, National Institute of Infectious Diseases, Shinjuku, Japan
| | - E Oohashi
- Akashiya Animal Hospital, Obihiro, Japan
| | - K Watanabe
- Laboratory of Veterinary Pathology, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - Y Kobayashi
- Laboratory of Veterinary Pathology, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.
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30
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Hajnická V, Kúdelová M, Štibrániová I, Slovák M, Bartíková P, Halásová Z, Pančík P, Belvončíková P, Vrbová M, Holíková V, Hails RS, Nuttall PA. Tick-Borne Transmission of Murine Gammaherpesvirus 68. Front Cell Infect Microbiol 2017; 7:458. [PMID: 29164067 PMCID: PMC5674927 DOI: 10.3389/fcimb.2017.00458] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/16/2017] [Indexed: 12/27/2022] Open
Abstract
Herpesviruses are a large group of DNA viruses infecting mainly vertebrates. Murine gammaherpesvirus 68 (MHV68) is often used as a model in studies of the pathogenesis of clinically important human gammaherpesviruses such as Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus. This rodent virus appears to be geographically widespread; however, its natural transmission cycle is unknown. Following detection of MHV68 in field-collected ticks, including isolation of the virus from tick salivary glands and ovaries, we investigated whether MHV68 is a tick-borne virus. Uninfected Ixodes ricinus ticks were shown to acquire the virus by feeding on experimentally infected laboratory mice. The virus survived tick molting, and the molted ticks transmitted the virus to uninfected laboratory mice on which they subsequently fed. MHV68 was isolated from the tick salivary glands, consistent with transmission via tick saliva. The virus survived in ticks without loss of infectivity for at least 120 days, and subsequently was transmitted vertically from one tick generation to the next, surviving more than 500 days. Furthermore, the F1 generation (derived from F0 infected females) transmitted MHV68 to uninfected mice on which they fed, with MHV68 M3 gene transcripts detected in blood, lung, and spleen tissue of mice on which F1 nymphs and F1 adults engorged. These experimental data fulfill the transmission criteria that define an arthropod-borne virus (arbovirus), the largest biological group of viruses. Currently, African swine fever virus (ASFV) is the only DNA virus recognized as an arbovirus. Like ASFV, MHV68 showed evidence of pathogenesis in ticks. Previous studies have reported MHV68 in free-living ticks and in mammals commonly infested with I. ricinus, and neutralizing antibodies to MHV68 have been detected in large mammals (e.g., deer) including humans. Further studies are needed to determine if these reports are the result of tick-borne transmission of MHV68 in nature, and whether humans are at risk of infection.
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Affiliation(s)
- Valeria Hajnická
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Marcela Kúdelová
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Iveta Štibrániová
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Mirko Slovák
- Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Pavlína Bartíková
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Zuzana Halásová
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Peter Pančík
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Petra Belvončíková
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Michaela Vrbová
- Department of Microbiology and Virology, Comenius University, Bratislava, Slovakia
| | - Viera Holíková
- Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia
| | | | - Patricia A Nuttall
- Centre for Ecology and Hydrology, Wallingford, United Kingdom.,Department of Zoology, University of Oxford, Oxford, United Kingdom
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Wardle R, Pullman JA, Haldenby S, Ressel L, Pope M, Clegg PD, Radford A, Stewart JP, Al-Saadi M, Dyer P, Peffers MJ. Identification of Equid herpesvirus 2 in tissue-engineered equine tendon. Wellcome Open Res 2017; 2:60. [PMID: 29152595 PMCID: PMC5664983 DOI: 10.12688/wellcomeopenres.12176.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2017] [Indexed: 01/03/2023] Open
Abstract
Background: Incidental findings of virus-like particles were identified following electron microscopy of tissue-engineered tendon constructs (TETC) derived from equine tenocytes. We set out to determine the nature of these particles, as there are few studies which identify virus in tendons
per se, and their presence could have implications for tissue-engineering using allogenic grafts. Methods: Virus particles were identified in electron microscopy of TETCs. Virion morphology was used to initially hypothesise the virus identity. Next generation sequencing was implemented to identify the virus. A pan herpesvirus PCR was used to validate the RNASeq findings using an independent platform. Histological analysis and biochemical analysis was undertaken on the TETCs. Results: Morphological features suggested the virus to be either a retrovirus or herpesvirus. Subsequent next generation sequencing mapped reads to Equid herpesvirus 2 (EHV2). Histological examination and biochemical testing for collagen content revealed no significant differences between virally affected TETCs and non-affected TETCs. An independent set of equine superficial digital flexor tendon tissue (n=10) examined using designed primers for specific EHV2 contigs identified at sequencing were negative. These data suggest that EHV is resident in some equine tendon. Conclusions: EHV2 was demonstrated in equine tenocytes for the first time; likely from
in vivo infection. The presence of EHV2 could have implications to both tissue-engineering and tendinopathy.
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Affiliation(s)
- Roisin Wardle
- Institute of Veterinary Science, University of Liverpool, Leahurst Campus, Chester High Road, Neston, Wirral, UK
| | - Jane A Pullman
- Centre for Genomic Research, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool, UK
| | - Sam Haldenby
- Centre for Genomic Research, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool, UK
| | - Lorenzo Ressel
- Institute of Veterinary Science, University of Liverpool, Leahurst Campus, Chester High Road, Neston, Wirral, UK
| | - Marion Pope
- Institute of Veterinary Science, University of Liverpool, Leahurst Campus, Chester High Road, Neston, Wirral, UK
| | - Peter D Clegg
- Institute of Ageing and Chronic Disease, University of Liverpool, William Henry Duncan Building, West Derby Street, Liverpool, UK
| | - Alan Radford
- Institute of Infection and Global Health, Department of Infection Biology, University of Liverpool, West Derby Street, Liverpool , UK
| | - James P Stewart
- Institute of Infection and Global Health, Department of Infection Biology, University of Liverpool, West Derby Street, Liverpool , UK
| | - Mohammed Al-Saadi
- Institute of Infection and Global Health, Department of Infection Biology, University of Liverpool, West Derby Street, Liverpool , UK
| | - Philip Dyer
- Institute of Veterinary Science, University of Liverpool, Leahurst Campus, Chester High Road, Neston, Wirral, UK
| | - Mandy J Peffers
- Institute of Ageing and Chronic Disease, University of Liverpool, William Henry Duncan Building, West Derby Street, Liverpool, UK
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Drewes S, Straková P, Drexler JF, Jacob J, Ulrich RG. Assessing the Diversity of Rodent-Borne Viruses: Exploring of High-Throughput Sequencing and Classical Amplification/Sequencing Approaches. Adv Virus Res 2017; 99:61-108. [PMID: 29029730 DOI: 10.1016/bs.aivir.2017.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Rodents are distributed throughout the world and interact with humans in many ways. They provide vital ecosystem services, some species are useful models in biomedical research and some are held as pet animals. However, many rodent species can have adverse effects such as damage to crops and stored produce, and they are of health concern because of the transmission of pathogens to humans and livestock. The first rodent viruses were discovered by isolation approaches and resulted in break-through knowledge in immunology, molecular and cell biology, and cancer research. In addition to rodent-specific viruses, rodent-borne viruses are causing a large number of zoonotic diseases. Most prominent examples are reemerging outbreaks of human hemorrhagic fever disease cases caused by arena- and hantaviruses. In addition, rodents are reservoirs for vector-borne pathogens, such as tick-borne encephalitis virus and Borrelia spp., and may carry human pathogenic agents, but likely are not involved in their transmission to human. In our days, next-generation sequencing or high-throughput sequencing (HTS) is revolutionizing the speed of the discovery of novel viruses, but other molecular approaches, such as generic RT-PCR/PCR and rolling circle amplification techniques, contribute significantly to the rapidly ongoing process. However, the current knowledge still represents only the tip of the iceberg, when comparing the known human viruses to those known for rodents, the mammalian taxon with the largest species number. The diagnostic potential of HTS-based metagenomic approaches is illustrated by their use in the discovery and complete genome determination of novel borna- and adenoviruses as causative disease agents in squirrels. In conclusion, HTS, in combination with conventional RT-PCR/PCR-based approaches, resulted in a drastically increased knowledge of the diversity of rodent viruses. Future improvements of the used workflows, including bioinformatics analysis, will further enhance our knowledge and preparedness in case of the emergence of novel viruses. Classical virological and additional molecular approaches are needed for genome annotation and functional characterization of novel viruses, discovered by these technologies, and evaluation of their zoonotic potential.
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Affiliation(s)
- Stephan Drewes
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Petra Straková
- Institute of Vertebrate Biology v.v.i., Academy of Sciences, Brno, Czech Republic
| | - Jan F Drexler
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, Berlin, Germany; German Center for Infection Research (DZIF), Germany
| | - Jens Jacob
- Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Horticulture and Forests, Vertebrate Research, Münster, Germany
| | - Rainer G Ulrich
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany; German Center for Infection Research (DZIF), Partner site Hamburg-Luebeck-Borstel-Insel Riems, Greifswald-Insel Riems, Germany.
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Reply to "Murine Roseolovirus, Historically Known as Murine Thymic Lymphotropic Virus". J Virol 2017; 91:91/18/e00956-17. [PMID: 28839089 DOI: 10.1128/jvi.00956-17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Wardle R, Pullman JA, Haldenby S, Ressel L, Pope M, Clegg PD, Radford A, Stewart JP, Al-Saadi M, Dyer P, Peffers MJ. Identification of Equid herpesvirus 2 in tissue-engineered equine tendon. Wellcome Open Res 2017. [DOI: 10.12688/wellcomeopenres.12176.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background:Incidental findings of virus-like particles were identified following electron microscopy of tissue-engineered tendon constructs (TETC) derived from equine tenocytes. We set out to determine the nature of these particles, as there are few studies which identify virus in tendonsper se, and their presence could have implications for tissue-engineering using allogenic grafts.Methods:Virus particles were identified in electron microscopy of TETCs. Virion morphology was used to initially hypothesise the virus identity. Next generation sequencing was implemented to identify the virus. A pan herpesvirus PCR was used to validate the RNASeq findings using an independent platform. Histological analysis and biochemical analysis was undertaken on the TETCs.Results:Morphological features suggested the virus to be either a retrovirus or herpesvirus. Subsequent next generation sequencing mapped reads to Equid herpesvirus 2 (EHV2). Histological examination and biochemical testing for collagen content revealed no significant differences between virally affected TETCs and non-affected TETCs. An independent set of equine superficial digital flexor tendon tissue (n=10) examined using designed primers for specific EHV2 contigs identified at sequencing were negative. These data suggest that EHV is resident in some equine tendon.Conclusions:EHV2 was demonstrated in equine tenocytes for the first time; likely fromin vivoinfection. The presence of EHV2 could have implications to both tissue-engineering and tendinopathy.
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A Murine Herpesvirus Closely Related to Ubiquitous Human Herpesviruses Causes T-Cell Depletion. J Virol 2017; 91:JVI.02463-16. [PMID: 28179532 PMCID: PMC5391440 DOI: 10.1128/jvi.02463-16] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 01/26/2017] [Indexed: 12/14/2022] Open
Abstract
The human roseoloviruses human herpesvirus 6A (HHV-6A), HHV-6B, and HHV-7 comprise the Roseolovirus genus of the human Betaherpesvirinae subfamily. Infections with these viruses have been implicated in many diseases; however, it has been challenging to establish infections with roseoloviruses as direct drivers of pathology, because they are nearly ubiquitous and display species-specific tropism. Furthermore, controlled study of infection has been hampered by the lack of experimental models, and until now, a mouse roseolovirus has not been identified. Herein we describe a virus that causes severe thymic necrosis in neonatal mice, characterized by a loss of CD4+ T cells. These phenotypes resemble those caused by the previously described mouse thymic virus (MTV), a putative herpesvirus that has not been molecularly characterized. By next-generation sequencing of infected tissue homogenates, we assembled a contiguous 174-kb genome sequence containing 128 unique predicted open reading frames (ORFs), many of which were most closely related to herpesvirus genes. Moreover, the structure of the virus genome and phylogenetic analysis of multiple genes strongly suggested that this virus is a betaherpesvirus more closely related to the roseoloviruses, HHV-6A, HHV-6B, and HHV-7, than to another murine betaherpesvirus, mouse cytomegalovirus (MCMV). As such, we have named this virus murine roseolovirus (MRV) because these data strongly suggest that MRV is a mouse homolog of HHV-6A, HHV-6B, and HHV-7.IMPORTANCE Herein we describe the complete genome sequence of a novel murine herpesvirus. By sequence and phylogenetic analyses, we show that it is a betaherpesvirus most closely related to the roseoloviruses, human herpesviruses 6A, 6B, and 7. These data combined with physiological similarities with human roseoloviruses collectively suggest that this virus is a murine roseolovirus (MRV), the first definitively described rodent roseolovirus, to our knowledge. Many biological and clinical ramifications of roseolovirus infection in humans have been hypothesized, but studies showing definitive causative relationships between infection and disease susceptibility are lacking. Here we show that MRV infects the thymus and causes T-cell depletion, suggesting that other roseoloviruses may have similar properties.
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Abstract
The Epstein-Barr virus (EBV) is a B-lymphotropic gamma herpes virus associated with a number of malignancies. Most EBV-related cancers present complex medical management challenges; thus it has been essential to develop preclinical in vivo models allowing for the study of pathogenesis, prevention, and treatment of these diseases. Early in vivo models used nonhuman primates; however, such models were limited by the inability of EBV to achieve viral latency, availability, and cost. Immunodeficient mouse strains emerged as efficient models that allow for engraftment of human mononuclear cells and controlled evaluation of EBV-driven lymphoproliferative disease (EBV-LPD). By using highly immunodeficient strains of mice such as severe combined immune deficiency (SCID) and NOD/LtSz-scid ILrg(-/-)(NOG) mice, investigators have developed efficient platforms for evaluating pathogenesis of benign (HLH) and malignant (EBV-LPD) diseases associated with EBV. Humanized murine chimeric models have been essential tools for evaluating preventive strategies with vaccine and adoptive cellular approaches, as well as development of experimental therapeutic strategies. Manipulation of the human immune cells before engraftment or mutation of viral lytic and latent genes has enhanced our understanding of the oncogenic nature of EBV and the complexity of human immune responses to EBV. In this review, we discuss how the EBV murine models have evolved to become essential tools for studying the virology of EBV as it relates to human EBV-LPD pathogenesis, the immunobiology of innate and adaptive responses, and limitations of these models.
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Affiliation(s)
- Elshafa Hassan Ahmed
- Elshafa Hassan Ahmed, DVM, MPH, is a postdoctoral fellow at the Comprehensive Cancer Center and graduate fellow in the Comparative and Veterinary Medicine Program at The Ohio State University in Columbus, Ohio. Robert A. Baiocchi, MD, PhD, is an associate professor in the Division of Hematology, Department of Internal Medicine at The Ohio State University in Columbus, Ohio
| | - Robert A Baiocchi
- Elshafa Hassan Ahmed, DVM, MPH, is a postdoctoral fellow at the Comprehensive Cancer Center and graduate fellow in the Comparative and Veterinary Medicine Program at The Ohio State University in Columbus, Ohio. Robert A. Baiocchi, MD, PhD, is an associate professor in the Division of Hematology, Department of Internal Medicine at The Ohio State University in Columbus, Ohio
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Pozo F, Juste J, Vázquez-Morón S, Aznar-López C, Ibáñez C, Garin I, Aihartza J, Casas I, Tenorio A, Echevarría JE. Identification of Novel Betaherpesviruses in Iberian Bats Reveals Parallel Evolution. PLoS One 2016; 11:e0169153. [PMID: 28036408 PMCID: PMC5201282 DOI: 10.1371/journal.pone.0169153] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 12/13/2016] [Indexed: 12/15/2022] Open
Abstract
A thorough search for bat herpesviruses was carried out in oropharyngeal samples taken from most of the bat species present in the Iberian Peninsula from the Vespertilionidae, Miniopteridae, Molossidae and Rhinolophidae families, in addition to a colony of captive fruit bats from the Pteropodidae family. By using two degenerate consensus PCR methods targeting two conserved genes, distinct and previously unrecognized bat-hosted herpesviruses were identified for the most of the tested species. All together a total of 42 potentially novel bat herpesviruses were partially characterized. Thirty-two of them were tentatively assigned to the Betaherpesvirinae subfamily while the remaining 10 were allocated into the Gammaherpesvirinae subfamily. Significant diversity was observed among the novel sequences when compared with type herpesvirus species of the ICTV-approved genera. The inferred phylogenetic relationships showed that most of the betaherpesviruses sequences fell into a well-supported unique monophyletic clade and support the recognition of a new betaherpesvirus genus. This clade is subdivided into three major clades, corresponding to the families of bats studied. This supports the hypothesis of a species-specific parallel evolution process between the potentially new betaherpesviruses and their bat hosts. Interestingly, two of the betaherpesviruses’ sequences detected in rhinolophid bats clustered together apart from the rest, closely related to viruses that belong to the Roseolovirus genus. This suggests a putative third roseolo lineage. On the contrary, no phylogenetic structure was detected among several potentially novel bat-hosted gammaherpesviruses found in the study. Remarkably, all of the possible novel bat herpesviruses described in this study are linked to a unique bat species.
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Affiliation(s)
- Francisco Pozo
- Virology Section, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Javier Juste
- Estación Biológica de Doñana, CSIC, Seville, Spain
| | - Sonia Vázquez-Morón
- Virology Section, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.,Centro de Investigación Biológica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Carolina Aznar-López
- Virology Section, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.,Centro de Investigación Biológica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | | | - Inazio Garin
- Department of Zoology and Animal Cell Biology, University of the Basque Country (UPV/EHU), Leioa, The Basque Country, Spain
| | - Joxerra Aihartza
- Department of Zoology and Animal Cell Biology, University of the Basque Country (UPV/EHU), Leioa, The Basque Country, Spain
| | - Inmaculada Casas
- Virology Section, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Antonio Tenorio
- Virology Section, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Juan Emilio Echevarría
- Virology Section, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.,Centro de Investigación Biológica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
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Drewes S, Turni H, Rosenfeld UM, Obiegala A, Straková P, Imholt C, Glatthaar E, Dressel K, Pfeffer M, Jacob J, Wagner-Wiening C, Ulrich RG. Reservoir-Driven Heterogeneous Distribution of Recorded Human Puumala virus Cases in South-West Germany. Zoonoses Public Health 2016; 64:381-390. [PMID: 27918151 DOI: 10.1111/zph.12319] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Indexed: 01/19/2023]
Abstract
Endemic regions for Puumala virus (PUUV) are located in the most affected federal state Baden-Wuerttemberg, South-West Germany, where high numbers of notified human hantavirus disease cases have been occurring for a long time. The distribution of human cases in Baden-Wuerttemberg is, however, heterogeneous, with a high number of cases recorded during 2012 in four districts (H districts) but a low number or even no cases recorded in four other districts (L districts). Bank vole monitoring during 2012, following a beech (Fagus sylvatica) mast year, resulted in the trapping of 499 bank voles, the host of PUUV. Analyses indicated PUUV prevalences of 7-50% (serological) and 1.8-27.5% (molecular) in seven of eight districts, but an absence of PUUV in one L district. The PUUV prevalence differed significantly between bank voles in H and L districts. In the following year 2013, 161 bank voles were trapped, with reduced bank vole abundance in almost all investigated districts except one. In 2013, no PUUV infections were detected in voles from seven of eight districts. In conclusion, the linear modelling approach indicated that the heterogeneous distribution of human PUUV cases in South-West Germany was caused by different factors including the abundance of PUUV RNA-positive bank voles, as well as by the interaction of beech mast and the proportional coverage of beech and oak (Quercus spec.) forest per district. These results can aid developing local public health risk management measures and early warning models.
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Affiliation(s)
- S Drewes
- Friedrich-Loeffler-Institut, Institute for Novel and Emerging Infectious Diseases, Greifswald - Insel Riems, Germany
| | - H Turni
- Stauss & Turni Gutachterbüro, Tübingen, Germany
| | - U M Rosenfeld
- Friedrich-Loeffler-Institut, Institute for Novel and Emerging Infectious Diseases, Greifswald - Insel Riems, Germany
| | - A Obiegala
- Veterinärmedizinische Fakultät, Institut für Tierhygiene und Öffentliches Veterinärwesen, University Leipzig, Leipzig, Germany
| | - P Straková
- Friedrich-Loeffler-Institut, Institute for Novel and Emerging Infectious Diseases, Greifswald - Insel Riems, Germany.,Institute of Vertebrate Biology v.v.i., Academy of Sciences, Masaryk University, Brno, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - C Imholt
- Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Horticulture and Forests, Vertebrate Research, Münster, Germany
| | - E Glatthaar
- Forstzoologisches Institut, Arbeitsbereich Wildtierökologie und Wildtiermanagement, Universität Freiburg, Freiburg, Germany
| | - K Dressel
- sine-Institut gGmbH, Munich, Germany
| | - M Pfeffer
- Veterinärmedizinische Fakultät, Institut für Tierhygiene und Öffentliches Veterinärwesen, University Leipzig, Leipzig, Germany
| | - J Jacob
- Julius Kühn-Institute, Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Horticulture and Forests, Vertebrate Research, Münster, Germany
| | - C Wagner-Wiening
- Landesgesundheitsamt Baden-Württemberg, Referat 95 - Epidemiologie und Gesundheitsberichterstattung, Sachgebietsleitung: Infektionsepidemiologische Meldesysteme (SG4), Stuttgart, Germany
| | - R G Ulrich
- Friedrich-Loeffler-Institut, Institute for Novel and Emerging Infectious Diseases, Greifswald - Insel Riems, Germany
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Zheng XY, Qiu M, Ke XM, Zhou W, Guan WJ, Chen SW, Li JM, Huo ST, Chen HF, Jiang LN, Zhong XS, Xiong YQ, Ma SJ, Ge J, Chen Q. Molecular Detection and Phylogenetic Characteristics of Herpesviruses in Rectal Swab Samples from Rodents and Shrews in Southern China. Vector Borne Zoonotic Dis 2016; 16:476-84. [PMID: 27171015 DOI: 10.1089/vbz.2015.1908] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Herpesviruses (HVs) can cause asymptomatic, benign, or fatal infections in a variety of animal species. However, the prevalence and phylogenetic characteristics of HVs in rodents and shrews in China are poorly understood. We thus performed a molecular detection and phylogenetic analysis of rat and shrew HVs in southern China between 2012 and 2014. Seventeen (6.7%) of 255 rectal swab specimens from rats and six (6.7%) of 90 rectal swab specimens from shrews tested positive for HVs. Phylogenetic analysis revealed that rodent and shrew HVs detected in this study were species specific, clustering in the Betaherpesvirinae and Gammaherpesvirinae clade. Novel Macavirus was detected in Rattus norvegicus (RN/13YX52/24 and RN/14HC50) and gammaherpesviruses in Suncus murinus (SM/14BY7/16/20/97/99/106).These findings have contributed to our understanding of the taxonomy, phylogeny, and biology of HVs.
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Affiliation(s)
- Xue-Yan Zheng
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Min Qiu
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Xue-Mei Ke
- 2 Xiamen Center for Disease Control and Prevention , Xiamen, China
| | - Wen Zhou
- 3 Guangzhou Yuexiu Center for Disease Control and Prevention , Guangzhou, Guangdong, China
| | - Wei-Jie Guan
- 4 State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University , Guangzhou, China
| | - Shao-Wei Chen
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Jin-Ming Li
- 5 Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University , Guangzhou, China
| | - Shu-Ting Huo
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Hui-Fang Chen
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Li-Na Jiang
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Xue-Shan Zhong
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Yi-Quan Xiong
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Shu-Juan Ma
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Jing Ge
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
| | - Qing Chen
- 1 Department of Epidemiology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health and Tropical Medicine, Southern Medical University , Guangzhou, Guangdong, China
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Roels E, Dourcy M, Holopainen S, Rajamäki MM, Gillet L, Ehlers B, Clercx C. No Evidence of Herpesvirus Infection in West Highland White Terriers With Canine Idiopathic Pulmonary Fibrosis. Vet Pathol 2016; 53:1210-1212. [PMID: 27106742 DOI: 10.1177/0300985816641991] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In humans, horses, and rodents, an association between pulmonary fibrotic disorders and gammaherpesvirus infection has been suggested. In dogs, canine idiopathic pulmonary fibrosis (CIPF), a progressive fibrotic lung disease of unknown origin and poorly understood pathophysiology, has been reported to occur in West Highland white terriers (WHWTs). The present study investigated the potential association between CIPF and herpesvirus infection. A PCR assay, using a mixture of degenerate and deoxyinosine-substituted primers targeting highly conserved regions of the DNA polymerase gene (DPOL) of herpesviruses, was applied on both lung and blood samples from WHWTs affected with CIPF and controls. Herpesvirus DPOL sequence could not be amplified from any of 46 lung samples (28 affected WHWTs and 18 control dogs of various breeds) and 38 blood samples (19 CIPF WHWTs and 19 control age-matched WHWTs) included. An association between CIPF and herpesvirus infection is therefore unlikely. Investigation of other causes of the disease is warranted.
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Affiliation(s)
- E Roels
- Department of Clinical Sciences, FARAH, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - M Dourcy
- Department of Infectious and Parasitic Diseases, FARAH, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - S Holopainen
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - M M Rajamäki
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - L Gillet
- Department of Infectious and Parasitic Diseases, FARAH, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - B Ehlers
- Robert Koch-Institute, Berlin, Germany
| | - C Clercx
- Department of Clinical Sciences, FARAH, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
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Anoh AE, Akoua-Koffi C, Couacy-Hymann E, Pauly M, Schubert G, Mossoun A, Weiss S, Leendertz SAJ, Jarvis MA, Leendertz FH, Ehlers B. Genetic identification of cytomegaloviruses in a rural population of Côte d'Ivoire. Virol J 2015; 12:155. [PMID: 26437859 PMCID: PMC4594925 DOI: 10.1186/s12985-015-0394-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 09/24/2015] [Indexed: 01/10/2023] Open
Abstract
Background Cytomegaloviruses (CMVs) are herpesviruses that infect many mammalian species, including humans. Infection generally passes undetected, but the virus can cause serious disease in individuals with impaired immune function. Human CMV (HCMV) is circulating with high seroprevalence (60–100 %) on all continents. However, little information is available on HCMV genoprevalence and genetic diversity in subsaharan Africa, especially in rural areas of West Africa that are at high risk of human-to-human HCMV transmission. In addition, there is a potential for zoonotic spillover of pathogens through bushmeat hunting and handling in these areas as shown for various retroviruses. Although HCMV and nonhuman CMVs are regarded as species-specific, potential human infection with CMVs of non-human primate (NHP) origin, shown to circulate in the local NHP population, has not been studied. Findings Analysis of 657 human oral swabs and fecal samples collected from 518 individuals living in 8 villages of Côte d’Ivoire with generic PCR for identification of human and NHP CMVs revealed shedding of HCMV in 2.5 % of the individuals. Determination of glycoprotein B sequences showed identity with strains Towne, AD169 and Toledo, respectively. NHP CMV sequences were not detected. Conclusions HCMV is actively circulating in a proportion of the rural Côte d’Ivoire human population with circulating strains being closely related to those previously identified in non-African countries. The lack of NHP CMVs in human populations in an environment conducive to cross-species infection supports zoonotic transmission of CMVs to humans being at most a rare event.
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Affiliation(s)
- Augustin Etile Anoh
- Centre de Recherche pour le Développement, Université Alassane Ouattara de Bouake, 01 BP V18, Bouake, Côte d'Ivoire.
| | - Chantal Akoua-Koffi
- Centre de Recherche pour le Développement, Université Alassane Ouattara de Bouake, 01 BP V18, Bouake, Côte d'Ivoire.
| | | | - Maude Pauly
- Project group P3 "Epidemiology of Highly Pathogenic Microorganisms", Robert Koch Institute, Berlin, 13353, Germany. .,Division 12 "Measles, Mumps, Rubella and Viruses affecting immune-compromised patients", Robert Koch Institute, Berlin, 13353, Germany. .,Present address: Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, 4354, Luxembourg.
| | - Grit Schubert
- Project group P3 "Epidemiology of Highly Pathogenic Microorganisms", Robert Koch Institute, Berlin, 13353, Germany.
| | - Arsène Mossoun
- LANADA/Laboratoire Central de Pathologie Animale, Bingerville, 206, Côte d'Ivoire. .,UFR Biosciences, Université FHB, Abidjan-Cocody, Côte d'Ivoire, Abidjan, Côte d'Ivoire.
| | - Sabrina Weiss
- Project group P3 "Epidemiology of Highly Pathogenic Microorganisms", Robert Koch Institute, Berlin, 13353, Germany. .,Present address: European Public Health Microbiology (EUPHEM) training programme, European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden, and Public Health England (PHE), London, NW9 5EQ, UK.
| | - Siv Aina J Leendertz
- Project group P3 "Epidemiology of Highly Pathogenic Microorganisms", Robert Koch Institute, Berlin, 13353, Germany.
| | - Michael A Jarvis
- School of Biomedical and Healthcare Sciences, Plymouth University, Plymouth, United Kingdom.
| | - Fabian H Leendertz
- Project group P3 "Epidemiology of Highly Pathogenic Microorganisms", Robert Koch Institute, Berlin, 13353, Germany.
| | - Bernhard Ehlers
- Division 12 "Measles, Mumps, Rubella and Viruses affecting immune-compromised patients", Robert Koch Institute, Berlin, 13353, Germany.
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Kúdelová M, Belvončíková P, Vrbová M, Kovaľová A, Štibrániová I, Kocáková P, Slovák M, Špitalská E, Lapuníková B, Matúšková R, Šupolíková M. Detection of Murine Herpesvirus 68 (MHV-68) in Dermacentor reticulatus Ticks. MICROBIAL ECOLOGY 2015; 70:785-794. [PMID: 25947097 DOI: 10.1007/s00248-015-0622-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 04/24/2015] [Indexed: 06/04/2023]
Abstract
Murid herpesvirus 4 (MuHV 4) strain 68 (MHV-68) is a natural pathogen of murid rodents, which serves as hosts to Dermacentor reticulatus ticks. These ticks are known to transmit multiple pathogens, which can cause diseases in humans and animals. Recently, the detection of MHV-68 antibodies in the blood of animals living in the same biotope as virus-infected mice has suggested the role of ticks in pathogen circulation in nature. Herein, to identify MHV-68 in D. reticulatus ticks, DNA samples from 432 adults were collected at two sites in southwestern Slovakia from 2011 to 2014. Samples were examined by polymerase chain reaction (PCR), targeting ORF50 of MHV-68. Ignoring season and locality, we have found 25.9 % of the male and 44.9 % of the female ticks to be positive. Within ticks collected in Vojka, 40 % (125/312) became positive, at a rate of approximately 6.8 times higher in spring than in autumn (66 vs 9.7 %). In addition, in the spring, 1.4 times more females were positive than males. Within ticks collected in Gabčíkovo, 23.3 % (28/120) became positive, with positive females being twice as frequent. The infecting virus was identified by analyzing amplified products via sequencing and restriction fragment length polymorphism (RFLP) analyses. Using an explantation/co-cultivation procedure, we examined the salivary glands, intestines, and ovaries of five females for live MHV-68. In all organs of two ticks, we identified a virus capable of replication in mammalian cells. This is the first report of MHV-68 detection in D. reticulatus ticks and of a live virus in their organs. Findings encourage further study to determine whether this potential arbovirus, found in salivary glands, is transmissible. It further supports the hypothesis regarding the mediating role of ticks in MHV-68 circulation in nature.
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Affiliation(s)
- Marcela Kúdelová
- Institute of Virology, Slovak Academy of Science, 845 05, Bratislava, Slovak Republic.
| | - Petra Belvončíková
- Institute of Virology, Slovak Academy of Science, 845 05, Bratislava, Slovak Republic
| | - Michaela Vrbová
- Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic
| | - Alžbeta Kovaľová
- Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic
| | - Iveta Štibrániová
- Institute of Virology, Slovak Academy of Science, 845 05, Bratislava, Slovak Republic
| | - Paulína Kocáková
- Institute of Virology, Slovak Academy of Science, 845 05, Bratislava, Slovak Republic
| | - Mirko Slovák
- Institute of Zoology, Slovak Academy of Science, Bratislava, Slovak Republic
| | - Eva Špitalská
- Institute of Virology, Slovak Academy of Science, 845 05, Bratislava, Slovak Republic
| | - Barbora Lapuníková
- Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic
| | - Radka Matúšková
- Institute of Virology, Slovak Academy of Science, 845 05, Bratislava, Slovak Republic
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43
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Gillet L, Frederico B, Stevenson PG. Host entry by gamma-herpesviruses--lessons from animal viruses? Curr Opin Virol 2015; 15:34-40. [PMID: 26246389 DOI: 10.1016/j.coviro.2015.07.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 07/13/2015] [Accepted: 07/14/2015] [Indexed: 12/15/2022]
Abstract
The oncogenicity of gamma-herpesviruses (γHVs) motivates efforts to control them and their persistence makes early events key targets for intervention. Human γHVs are often assumed to enter naive hosts orally and infect B cells directly. However, neither assumption is supported by direct evidence, and vaccination with the Epstein-Barr virus (EBV) gp350, to block virion binding to B cells, failed to reduce infection rates. Thus, there is a need to re-evaluate assumptions about γHV host entry. Given the difficulty of analysing early human infections, potentially much can be learned from animal models. Genomic comparisons argue that γHVs colonized mammals long before humans speciation, and so that human γHVs are unlikely to differ dramatically in behaviour from those of other mammals. Murid Herpesvirus-4 (MuHV-4), which like EBV and the Kaposi's Sarcoma-associated Herpesvirus (KSHV) persists in memory B cells, enters new hosts via olfactory neurons and exploits myeloid cells to spread. Integrating these data with existing knowledge of human and veterinary γHVs suggests a new model of host entry, with potentially important implications for infection control.
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Affiliation(s)
- Laurent Gillet
- Immunology/Vaccinology, Faculty of Veterinary Medicine, FARAH, University of Liège, Belgium.
| | - Bruno Frederico
- Cancer Research UK, Lincoln's Inn Fields, London, United Kingdom
| | - Philip G Stevenson
- Sir Albert Sakzewski Virus Research Centre, University of Queensland and Royal Children's Hospital, Brisbane, Australia
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44
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Leeming GH, Kipar A, Hughes DJ, Bingle L, Bennett E, Moyo NA, Tripp RA, Bigley AL, Bingle CD, Sample JT, Stewart JP. Gammaherpesvirus infection modulates the temporal and spatial expression of SCGB1A1 (CCSP) and BPIFA1 (SPLUNC1) in the respiratory tract. J Transl Med 2015; 95:610-24. [PMID: 25531566 PMCID: PMC4450743 DOI: 10.1038/labinvest.2014.162] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 10/23/2014] [Accepted: 11/11/2014] [Indexed: 11/09/2022] Open
Abstract
Murine γ-herpesvirus 68 (MHV-68) infection of Mus musculus-derived strains of mice is an established model of γ-herpesvirus infection. We have previously developed an alternative system using a natural host, the wood mouse (Apodemus sylvaticus), and shown that the MHV-68 M3 chemokine-binding protein contributes significantly to MHV-68 pathogenesis. Here we demonstrate in A. sylvaticus using high-density micro-arrays that M3 influences the expression of genes involved in the host response including Scgb1a1 and Bpifa1 that encode potential innate defense proteins secreted into the respiratory tract. Further analysis of MHV-68-infected animals showed that the levels of both protein and RNA for SCGB1A1 and BPIFA1 were decreased at day 7 post infection (p.i.) but increased at day 14 p.i. as compared with M3-deficient and mock-infected animals. The modulation of expression was most pronounced in bronchioles but was also present in the bronchi and trachea. Double staining using RNA in situ hybridization and immunohistology demonstrated that much of the BPIFA1 expression occurs in club cells along with SCGB1A1 and that BPIFA1 is stored within granules in these cells. The increase in SCGB1A1 and BPIFA1 expression at day 14 p.i. was associated with the differentiation of club cells into mucus-secreting cells. Our data highlight the role of club cells and the potential of SCGB1A1 and BPIFA1 as innate defense mediators during respiratory virus infection.
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Affiliation(s)
- Gail H Leeming
- Department of Infection Biology, University of Liverpool, Liverpool, UK,Department of Veterinary Pathology, School of Veterinary Science, University of Liverpool, Liverpool, UK
| | - Anja Kipar
- Department of Infection Biology, University of Liverpool, Liverpool, UK,Department of Veterinary Pathology, School of Veterinary Science, University of Liverpool, Liverpool, UK,Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - David J Hughes
- Department of Infection Biology, University of Liverpool, Liverpool, UK
| | - Lynne Bingle
- Academic Unit of Oral and Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, UK
| | - Elaine Bennett
- Department of Infection Biology, University of Liverpool, Liverpool, UK
| | - Nathifa A Moyo
- Department of Infection Biology, University of Liverpool, Liverpool, UK
| | - Ralph A Tripp
- Department of Infectious Diseases, University of Georgia, Athens, GA, USA
| | - Alison L Bigley
- Investigative and Translational Pathology, AstraZeneca, R&D Innovative Medicines, Global Safety Assessment, Macclesfield, UK
| | - Colin D Bingle
- Academic Unit of Respiratory Medicine, Department of Infection and Immunity, University of Sheffield, Sheffield, UK
| | - Jeffery T Sample
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - James P Stewart
- Department of Infection Biology, University of Liverpool, Liverpool, UK,Department of Infection Biology, University of Liverpool, Liverpool Science Park IC2, 146 Brownlow Hill, Liverpool L3 5RF, UK. E-mail:
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45
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Jacob J, Ulrich RG, Freise J, Schmolz E. [Monitoring populations of rodent reservoirs of zoonotic diseases. Projects, aims and results]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2015; 57:511-8. [PMID: 24781907 DOI: 10.1007/s00103-013-1924-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Rodents can harbor and transmit pathogens that can cause severe disease in humans, companion animals and livestock. Such zoonotic pathogens comprise more than two thirds of the currently known human pathogens. The epidemiology of some zoonotic pathogens, such as hantaviruses, can be linked to the population dynamics of the rodent host. In this case, during an outbreak of the rodent host population many human infections may occur. In other rodent-borne zoonotic diseases such phenomena are not known and in many cases the rodent host specificity of a given pathogen is unclear. The monitoring of relevant rodent populations and of the rodent-borne zoonotic pathogens is essential to (1) understand the distribution and epidemiology of pathogens and (2) develop forecasting tools to predict outbreaks of zoonoses. Presently, there are no systematic long-term monitoring programs in place for zoonoses in Germany. Rodent monitoring activities are largely restricted to the plant protection sector, such as for the common vole (Microtus arvalis) and forest-damaging rodents. However, during the last 10-15 years a number of specific research projects have been initiated and run for a few years and Norway rat (Rattus norvegicus) monitoring has been implemented in Hamburg and Lower Saxony. Based on close cooperation of federal and state authorities and research institutions these efforts could be utilized to gain information about the distribution and importance of rodent-borne zoonoses. Nevertheless, for the integration of rodent population dynamics and zoonotic disease patterns and especially for developing predictive models, long-term monitoring is urgently required. To establish a systematic long-term monitoring program, existing networks and cooperation need to be used, additional collaborators (e.g., pest control operators) should be included and synergetic effects of different scientific fields should be utilized.
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Affiliation(s)
- J Jacob
- Bundesforschungsinstitut für Kulturpflanzen, Institut für Pflanzenschutz in Gartenbau und Forst, Wirbeltierforschung, Julius Kühn-Institut, Toppheideweg 88, 48161, Münster, Deutschland,
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46
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The analysis of microsatellites and compound microsatellites in 56 complete genomes of Herpesvirales. Gene 2014; 551:103-9. [DOI: 10.1016/j.gene.2014.08.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 08/09/2014] [Accepted: 08/26/2014] [Indexed: 01/13/2023]
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47
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Sachsenröder J, Braun A, Machnowska P, Ng TFF, Deng X, Guenther S, Bernstein S, Ulrich RG, Delwart E, Johne R. Metagenomic identification of novel enteric viruses in urban wild rats and genome characterization of a group A rotavirus. J Gen Virol 2014; 95:2734-2747. [PMID: 25121550 DOI: 10.1099/vir.0.070029-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Rats are known as reservoirs and vectors for several zoonotic pathogens. However, information on the viruses shed by urban wild rats that could pose a zoonotic risk to human health is scare. Here, intestinal contents from 20 wild Norway rats (Rattus norvegicus) collected in the city of Berlin, Germany, were subjected to metagenomic analysis of viral nucleic acids. The determined faecal viromes of rats consisted of a variety of known and unknown viruses, and were highly variable among the individuals. Members of the families Parvoviridae and Picobirnaviridae represented the most abundant species. Novel picornaviruses, bocaviruses, sapoviruses and stool-associated circular ssDNA viruses were identified, which showed only low sequence identity to known representatives of the corresponding taxa. In addition, noroviruses and rotaviruses were detected as potential zoonotic gastroenteritis viruses. However, partial-genome sequence analyses indicated that the norovirus was closely related to the recently identified rat norovirus and the rotavirus B was closely related to the rat rotavirus strain IDIR; both viruses clustered separately from respective human virus strains in phylogenetic trees. In contrast, the rotavirus A sequences showed high identity to human and animal strains. Analysis of the nearly complete genome of this virus revealed the known genotypes G3, P[3] and N2 for three of the genome segments, whereas the remaining eight genome segments represented the novel genotypes I20-R11-C11-M10-A22-T14-E18-H13. Our results indicated a high heterogeneity of enteric viruses present in urban wild rats; their ability to be transmitted to humans remains to be assessed in the future.
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Affiliation(s)
- Jana Sachsenröder
- Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Anne Braun
- Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Patrycja Machnowska
- Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
| | - Terry Fei Fan Ng
- Blood Systems Research Institute, 270 Masonic Avenue, San Francisco, CA 94118, USA
| | - Xutao Deng
- Blood Systems Research Institute, 270 Masonic Avenue, San Francisco, CA 94118, USA
| | - Sebastian Guenther
- Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie Universität Berlin, Robert-von-Ostertag-Strasse 7-13, 14163 Berlin, Germany
| | - Samuel Bernstein
- Friedrich-Loeffler-Institut, Institute for Novel and Emerging Infectious Diseases, Südufer 10, 17493 Greifswald-Insel Riems, Germany
| | - Rainer G Ulrich
- Friedrich-Loeffler-Institut, Institute for Novel and Emerging Infectious Diseases, Südufer 10, 17493 Greifswald-Insel Riems, Germany
| | - Eric Delwart
- Blood Systems Research Institute, 270 Masonic Avenue, San Francisco, CA 94118, USA
| | - Reimar Johne
- Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany
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48
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Leptospira spp. in rodents and shrews in Germany. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:7562-74. [PMID: 25062275 PMCID: PMC4143818 DOI: 10.3390/ijerph110807562] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/08/2014] [Accepted: 07/15/2014] [Indexed: 12/13/2022]
Abstract
Leptospirosis is an acute, febrile disease occurring in humans and animals worldwide. Leptospira spp. are usually transmitted through direct or indirect contact with the urine of infected reservoir animals. Among wildlife species, rodents act as the most important reservoir for both human and animal infection. To gain a better understanding of the occurrence and distribution of pathogenic leptospires in rodent and shrew populations in Germany, kidney specimens of 2973 animals from 11 of the 16 federal states were examined by PCR. Rodent species captured included five murine species (family Muridae), six vole species (family Cricetidae) and six shrew species (family Soricidae). The most abundantly trapped animals were representatives of the rodent species Apodemus flavicollis, Clethrionomys glareolus and Microtus agrestis. Leptospiral DNA was amplified in 10% of all animals originating from eight of the 11 federal states. The highest carrier rate was found in Microtus spp. (13%), followed by Apodemus spp. (11%) and Clethrionomys spp. (6%). The most common Leptospira genomospecies determined by duplex PCR was L. kirschneri, followed by L. interrogans and L. borgpetersenii; all identified by single locus sequence typing (SLST). Representatives of the shrew species were also carriers of Leptospira spp. In 20% of Crocidura spp. and 6% of the Sorex spp. leptospiral DNA was detected. Here, only the pathogenic genomospecies L. kirschneri was identified.
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49
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Nishiyama S, Dutia BM, Stewart JP, Meredith AL, Shaw DJ, Simmonds P, Sharp CP. Identification of novel anelloviruses with broad diversity in UK rodents. J Gen Virol 2014; 95:1544-1553. [PMID: 24744300 PMCID: PMC4059270 DOI: 10.1099/vir.0.065219-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Anelloviruses are a family of small circular ssDNA viruses with a vast genetic diversity. Human infections with the prototype anellovirus, torque teno virus (TTV), are ubiquitous and related viruses have been described in a number of other mammalian hosts. Despite over 15 years of investigation, there is still little known about the pathogenesis and possible disease associations of anellovirus infections, arising in part due to the lack of a robust cell culture system for viral replication or tractable small-animal model. We report the identification of diverse anelloviruses in several species of wild rodents. The viruses are highly prevalent in wood mice (Apodemus sylvaticus) and field voles (Microtus agrestis), detectable at a low frequency in bank voles (Myodes glareolus), but absent from house mice (Mus musculus). The viruses identified have a genomic organization consistent with other anelloviruses, but form two clear phylogenetic groups that are as distinct from each other as from defined genera.
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Affiliation(s)
- Shoko Nishiyama
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK
| | - Bernadette M Dutia
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK
| | - James P Stewart
- Department of Infection Biology, University of Liverpool, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF, UK
| | - Anna L Meredith
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK
| | - Darren J Shaw
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK
| | - Peter Simmonds
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK
| | - Colin P Sharp
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK
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50
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Abstract
Progressive lung fibrosis in humans, typified by idiopathic pulmonary fibrosis (IPF), is a serious cause of morbidity and mortality in people. Similar diseases have been described in dogs, cats, and horses. The cause and pathogenesis of such diseases in all species is poorly understood. There is growing evidence in human medicine that IPF is a manifestation of abnormal wound repair in response to epithelial injury. Because viruses can contribute to epithelial injury, there is increasing interest in a possible role of viruses, particularly gammaherpesviruses, in the pathogenesis of pulmonary fibrosis. This review provides background information on progressive fibrosing lung disease in human and veterinary medicine and summarizes the evidence for an association between gammaherpesvirus infection and pulmonary fibrosis, especially Epstein-Barr virus in human pulmonary fibrosis, and equine herpesvirus 5 in equine multinodular pulmonary fibrosis. Data derived from experimental lung infection in mice with the gammaherpesvirus murine herpesvirus are presented, emphasizing the host and viral factors that may contribute to lung fibrosis. The experimental data are considered in the context of the pathogenesis of naturally occurring pulmonary fibrosis in humans and horses.
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Affiliation(s)
- K. J. Williams
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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