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Mazzariol S, Centelleghe C, Petrella A, Marcer F, Beverelli M, Di Francesco CE, Di Francesco G, Di Renzo L, Di Guardo G, Audino T, Tripodi L, Casalone C. Atypical Toxoplasmosis in a Mediterranean Monk Seal (Monachus monachus) Pup. J Comp Pathol 2021; 184:65-71. [PMID: 33894880 DOI: 10.1016/j.jcpa.2021.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/02/2021] [Accepted: 02/20/2021] [Indexed: 11/28/2022]
Abstract
The Mediterranean monk seal (Monachus monachus) is the rarest species of pinniped in the world. Necropsy of a Mediterranean monk seal pup that stranded alive on the southern Adriatic Italian coast and died a few hours later revealed co-infection by cetacean morbillivirus (CeMV) and Toxoplasma gondii. Pathological lesions included a multifocal, moderate to severe, necrotizing myocarditis and a diffuse, chronic, moderate interstitial pneumonia with bronchial and bronchiolar epithelial hyperplasia. Lesions of atypical necrotizing arteritis were seen in the aorta and major pulmonary arteries in association with the presence T. gondii organisms. Severe haemorrhagic foci and lesions of non-suppurative meningoencephalitis, together with the presence of protozoal cysts, were seen in the brain. Co-infection of CeMV and T. gondii has not been previously reported in monk seals. The vascular lesions found in this animal can be considered atypical because they have not been reported in other terrestrial or marine mammal species. The disseminated toxoplasmosis associated with the unusual vascular and haemorrhagic brain lesions could be related to the immunosuppressive effects of CeMV infection.
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Affiliation(s)
- Sandro Mazzariol
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Padova, Italy
| | - Cinzia Centelleghe
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Padova, Italy.
| | - Antonio Petrella
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Federica Marcer
- Department of Animal Medicine, Production and Health, University of Padua, Legnaro, Padova, Italy
| | - Matteo Beverelli
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | | | | | - Ludovica Di Renzo
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise, Teramo, Italy
| | | | - Tania Audino
- Istituto Zooprofilattico Sperimentale del Piemonte, Torino, Italy
| | - Letizia Tripodi
- Istituto Zooprofilattico Sperimentale del Piemonte, Torino, Italy
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Gaspari S, Marsili L, Natali C, Airoldi S, Lanfredi C, Deeming C, Moura AE. Spatio-temporal patterns of genetic diversity in the Mediterranean striped dolphin (Stenella coeruleoalba
). J ZOOL SYST EVOL RES 2019. [DOI: 10.1111/jzs.12265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Letizia Marsili
- Department of Environmental Science; University of Siena; Siena Italy
| | - Chiara Natali
- Department of Biology; University of Florence; Florence Italy
| | | | | | | | - André E. Moura
- School of Life Sciences; University of Lincoln; Lincoln UK
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3
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Evolutionary evidence for multi-host transmission of cetacean morbillivirus. Emerg Microbes Infect 2018; 7:201. [PMID: 30514855 PMCID: PMC6279766 DOI: 10.1038/s41426-018-0207-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/05/2018] [Accepted: 11/11/2018] [Indexed: 11/09/2022]
Abstract
Cetacean morbillivirus (CeMV) has emerged as the pathogen that poses the greatest risk of triggering epizootics in cetacean populations worldwide, and has a high propensity for interspecies transmission, including sporadic infection of seals. In this study, we investigated the evolutionary history of CeMV by deep sequencing wild-type viruses from tissue samples representing cetacean species with different spatiotemporal origins. Bayesian phylogeographic analysis generated an estimated evolutionary rate of 2.34 × 10−4 nucleotide substitutions/site/year and showed that CeMV evolutionary dynamics are neither host-restricted nor location-restricted. Moreover, the dolphin morbillivirus strain of CeMV has undergone purifying selection without evidence of species-specific mutations. Cell-to-cell fusion and growth kinetics assays demonstrated that CeMV can use both dolphin and seal CD150 as a cellular receptor. Thus, it appears that CeMV can readily spread among multiple cetacean populations and may pose an additional spillover risk to seals.
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Jo WK, Osterhaus ADME, Ludlow M. Transmission of morbilliviruses within and among marine mammal species. Curr Opin Virol 2018; 28:133-141. [DOI: 10.1016/j.coviro.2017.12.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 10/18/2022]
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Pfeffermann K, Dörr M, Zirkel F, von Messling V. Morbillivirus Pathogenesis and Virus-Host Interactions. Adv Virus Res 2018; 100:75-98. [PMID: 29551144 DOI: 10.1016/bs.aivir.2017.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Despite the availability of safe and effective vaccines against measles and several animal morbilliviruses, they continue to cause regular outbreaks and epidemics in susceptible populations. Morbilliviruses are highly contagious and share a similar pathogenesis in their respective hosts. This review provides an overview of morbillivirus history and the general replication cycle and recapitulates Morbillivirus pathogenesis focusing on common and unique aspects seen in different hosts. It also summarizes the state of knowledge regarding virus-host interactions on the cellular level with an emphasis on viral interference with innate immune response activation, and highlights remaining knowledge gaps.
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Logan N, McMonagle E, Drew AA, Takahashi E, McDonald M, Baron MD, Gilbert M, Cleaveland S, Haydon DT, Hosie MJ, Willett BJ. Efficient generation of vesicular stomatitis virus (VSV)-pseudotypes bearing morbilliviral glycoproteins and their use in quantifying virus neutralising antibodies. Vaccine 2015; 34:814-22. [PMID: 26706278 PMCID: PMC4742518 DOI: 10.1016/j.vaccine.2015.12.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 11/20/2015] [Accepted: 12/06/2015] [Indexed: 12/18/2022]
Abstract
Morbillivirus neutralising antibodies are traditionally measured using either plaque reduction neutralisation tests (PRNTs) or live virus microneutralisation tests (micro-NTs). While both test formats provide a reliable assessment of the strength and specificity of the humoral response, they are restricted by the limited number of viral strains that can be studied and often present significant biological safety concerns to the operator. In this study, we describe the adaptation of a replication-defective vesicular stomatitis virus (VSVΔG) based pseudotyping system for the measurement of morbillivirus neutralising antibodies. By expressing the haemagglutinin (H) and fusion (F) proteins of canine distemper virus (CDV) on VSVΔG pseudotypes bearing a luciferase marker gene, neutralising antibody titres could be measured rapidly and with high sensitivity. Further, by exchanging the glycoprotein expression construct, responses against distinct viral strains or species may be measured. Using this technique, we demonstrate cross neutralisation between CDV and peste des petits ruminants virus (PPRV). As an example of the value of the technique, we demonstrate that UK dogs vary in the breadth of immunity induced by CDV vaccination; in some dogs the neutralising response is CDV-specific while, in others, the neutralising response extends to the ruminant morbillivirus PPRV. This technique will facilitate a comprehensive comparison of cross-neutralisation to be conducted across the morbilliviruses.
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Affiliation(s)
- Nicola Logan
- MRC-University of Glasgow Centre for Virus Research, Garscube Estate, Glasgow G61 1QH, United Kingdom.
| | - Elizabeth McMonagle
- MRC-University of Glasgow Centre for Virus Research, Garscube Estate, Glasgow G61 1QH, United Kingdom.
| | - Angharad A Drew
- MRC-University of Glasgow Centre for Virus Research, Garscube Estate, Glasgow G61 1QH, United Kingdom.
| | - Emi Takahashi
- Royal Veterinary College, University of London, London NW1 0TU, United Kingdom.
| | - Michael McDonald
- Veterinary Diagnostic Services, University of Glasgow, Garscube Estate, Glasgow G61 1QH, United Kingdom.
| | - Michael D Baron
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, United Kingdom.
| | - Martin Gilbert
- Wildlife Conservation Society, Bronx, NY, USA; Boyd Orr Centre for Population and Ecosystem Health, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
| | - Sarah Cleaveland
- Boyd Orr Centre for Population and Ecosystem Health, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
| | - Daniel T Haydon
- Boyd Orr Centre for Population and Ecosystem Health, Institute of Biodiversity Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
| | - Margaret J Hosie
- MRC-University of Glasgow Centre for Virus Research, Garscube Estate, Glasgow G61 1QH, United Kingdom.
| | - Brian J Willett
- MRC-University of Glasgow Centre for Virus Research, Garscube Estate, Glasgow G61 1QH, United Kingdom.
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Abstract
Dolphin Morbillivirus (DMV), which has caused at least four epidemics in the Western Mediterranean during the last 20–25 years, may dramatically impact the health and conservation of striped dolphins (Stenella coeruleoalba) living in this area. The viral and host factors driving the host–DMV interaction, along with those related to the climate change that underlie the occurrence of DMV epidemics, warrant further investigation.
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Dolphin morbillivirus infection in a captive harbor seal (Phoca vitulina). J Clin Microbiol 2012; 51:708-11. [PMID: 23224101 DOI: 10.1128/jcm.02710-12] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
During the second morbillivirus epidemic (2007 to 2011) in cetaceans along the Italian coastline, dolphin morbillivirus (DMV) was detected by molecular analyses in a captive harbor seal (Phoca vitulina), with pathological findings consistent with morbillivirus infection. This report confirms interspecies DMV transmission from cetaceans to pinnipeds.
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9
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Banyard AC, Grant RJ, Romero CH, Barrett T. Sequence of the nucleocapsid gene and genome and antigenome promoters for an isolate of porpoise morbillivirus. Virus Res 2007; 132:213-9. [PMID: 18166241 DOI: 10.1016/j.virusres.2007.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2007] [Revised: 11/05/2007] [Accepted: 11/10/2007] [Indexed: 10/22/2022]
Abstract
We have determined the first complete sequence of the nucleocapsid (N) gene of the porpoise morbillivirus (PMV) as well as the genome leader and trailer sequences which encode the genome and antigenome promoters, respectively. The PMV N gene is 1686 nucleotides long with a single open reading frame (ORF) encoding a protein of 523 amino acids with a predicted molecular weight of 57.39kDa. The nucleotide sequence of the N gene shows the closest identity (89%) to that of another cetacean morbillivirus, dolphin morbillivirus (DMV). Lower degrees of identity were found with the other members of the morbilliviruses genus; 67% identity to PDV and RPV, 68% to PPRV, 69% to CDV and 70% to MV. The distance from the 3' end of the genome up to the start of the N ORF is 107 nucleotides, identical to that found in all other morbilliviruses, and encompasses the genome promoter (GP) sequence. This promoter shows the same regions of conservation as found in other morbilliviruses with repeated CXXXXX motifs at positions 79-84, 85-90, and 91-96, the same bi-partite promoter arrangement found in many paramyxoviruses. The antigenome promoter (AGP) shows a similar arrangement, indicating a high degree of conservation in these functionally important regions.
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Aldridge BM, Bowen L, Smith BR, Antonelis GA, Gulland F, Stott JL. Paucity of class I MHC gene heterogeneity between individuals in the endangered Hawaiian monk seal population. Immunogenetics 2006; 58:203-15. [PMID: 16528500 DOI: 10.1007/s00251-005-0069-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2005] [Accepted: 11/21/2005] [Indexed: 10/24/2022]
Abstract
The Hawaiian monk seal population has experienced precipitous declines in the last 50 years. In this study, we provide evidence that individuals from remaining endangered population exhibit alarming uniformity in class I major histocompatibility (MHC) genes. The peripheral blood leukocyte-derived mRNA of six captive animals rescued from a stranding incident on the French frigate shoals in the Hawaiian archipelago was used to characterize genes in the monk seal class I MHC gene family, from which techniques for genotyping the broader population were designed using degenerate primers designed for the three major established human MHC class I loci (HLA-A, HLA-B, and HLA-C), and by sequencing multiple clones, six unique full-length classical MHC class I gene transcripts were identified among the six animals, three of which were only found in single individuals. Since The low degree of sequence variation between these transcripts and the similarity of genotype between individuals provided preliminary evidence for low class I MHC variability in the population. The sequence information from the class I transcripts from these six animals was used to design several primer sets for examining the extent of MHC variability in the remaining population using a combination of polymerase chain reaction and denaturing gradient gel electrophoresis (DGGE). Several DGGE assays, each one amplifying subtly different class I MHC gene combinations, were designed to compare exons encoding the highly polymorphic domains of the putative peptide-binding region of MHC class I. In combination, these assays failed to show interindividual variability at any of the class I MHC gene loci examined in either the six captive seals or in 80 free-ranging animals ( approximately 6.7% of the estimated population) representing all six major subpopulations of Hawaiian monk seal.
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Affiliation(s)
- Brian M Aldridge
- Veterinary Clinical Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Herts, AL97TA, UK.
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11
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van de Bildt MW, Martina BE, Sidi BA, Osterhaus AD. Morbillivirus infection in a bottlenosed dolphin and a Mediterranean monk seal from the Atlantic coast of West Africa. Vet Rec 2001; 148:210-1. [PMID: 11266000 DOI: 10.1136/vr.148.7.210] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- M W van de Bildt
- Seal Rehabilitation and Research Centre, Pieterburen, The Netherlands
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