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Aplasca AC, Martinez MP, Evans SJM, Martinez ME, Cianciolo RE, Bundschuh M, Puchulu-Campanella E, Chen X, Yan P, Bundschuh R, Seeley KE, Bapodra-Villaverde P, Garner MM, Junge RE. AN OUTBREAK OF FELINE INFECTIOUS PERITONITIS IN THREE RELATED SAND CATS ( FELIS MARGARITA) IN HUMAN CARE. J Zoo Wildl Med 2023; 54:628-638. [PMID: 37817630 DOI: 10.1638/2022-0159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2023] [Indexed: 10/12/2023] Open
Abstract
Feline infectious peritonitis (FIP) is a systemic disease in felid species caused by infection with mutated forms of feline coronavirus (FCoV), and outbreaks can devastate exotic felid populations in human care. Feline infectious peritonitis was diagnosed in three of four related juvenile sand cats (Felis margarita) from a single institution over a 6-wk period. Case 1 was a 7-mon-old male found deceased with no premonitory signs. Case 2, an 8-mon-old male (littermate to Case 1), and Case 3, a 6-mon-old male (from a different litter with identical parentage), were evaluated for lethargy and anorexia 1 mon after Case 1. Both exhibited transient anisocoria and progressive lethargy, anorexia, and dehydration despite antibiotic and supportive treatment. Approximately 1 wk after initial presentation, Case 2 was humanely euthanized, and Case 3 was found deceased. Necropsy findings included intrathoracic and/or intra-abdominal lymphadenopathy (3/3 cases), bicavitary effusion (2/3), multifocal tan hepatic and intestinal nodules (1/3), and multifocal yellow renal nodules (1/3). Histologically, all cats had severe pyogranulomatous vasculitis in multiple organs, and the presence of FCoV antigen was confirmed using immunohistochemical staining. Next-generation sequencing of the virus from Case 3's affected kidney demonstrated ∼93% homology to the UG-FH8 virus, a serotype 1 feline alphacoronavirus isolated from Denmark. Future research will focus on comparative viral genomic sequencing with the goals of identifying potential sources of FCoV infection and identifying features that may have contributed to the development of FIP in this species.
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Affiliation(s)
- Andrea C Aplasca
- Columbus Zoo and Aquarium, Powell, OH 43065, USA,
- The Ohio State University College of Veterinary Medicine, Columbus, OH 43210, USA
| | - Michael P Martinez
- The Ohio State University College of Veterinary Medicine, Columbus, OH 43210, USA
| | - Samantha J M Evans
- The Ohio State University College of Veterinary Medicine, Columbus, OH 43210, USA
| | - Margaret E Martinez
- The Ohio State University College of Veterinary Medicine, Columbus, OH 43210, USA
| | - Rachel E Cianciolo
- The Ohio State University College of Veterinary Medicine, Columbus, OH 43210, USA
| | - Mark Bundschuh
- The Ohio State University Department of Physics, Columbus, OH 43210, USA
| | | | - Xi Chen
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Pearlly Yan
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
- The Ohio State University Division of Hematology, Columbus, OH 43210, USA
| | - Ralf Bundschuh
- The Ohio State University Department of Physics, Columbus, OH 43210, USA
- The Ohio State University Department of Chemistry and Biochemistry, Columbus, OH 43210, USA
- The Ohio State University Division of Hematology, Columbus, OH 43210, USA
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2
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Leopardi S, Desiato R, Mazzucato M, Orusa R, Obber F, Averaimo D, Berjaoui S, Canziani S, Capucchio MT, Conti R, di Bella S, Festa F, Garofalo L, Lelli D, Madrau MP, Mandola ML, Moreno Martin AM, Peletto S, Pirani S, Robetto S, Torresi C, Varotto M, Citterio C, Terregino C. One health surveillance strategy for coronaviruses in Italian wildlife. Epidemiol Infect 2023; 151:e96. [PMID: 37263583 PMCID: PMC10282179 DOI: 10.1017/s095026882300081x] [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: 01/27/2023] [Accepted: 05/19/2023] [Indexed: 06/03/2023] Open
Abstract
The recent reinforcement of CoV surveillance in animals fuelled by the COVID-19 pandemic provided increasing evidence that mammals other than bats might hide further diversity and play critical roles in human infectious diseases. This work describes the results of a two-year survey carried out in Italy with the double objective of uncovering CoV diversity associated with wildlife and of excluding the establishment of a reservoir for SARS-CoV-2 in particularly susceptible or exposed species. The survey targeted hosts from five different orders and was harmonised across the country in terms of sample size, target tissues, and molecular test. Results showed the circulation of 8 CoV species in 13 hosts out of the 42 screened. Coronaviruses were either typical of the host species/genus or normally associated with their domestic counterpart. Two novel viruses likely belonging to a novel CoV genus were found in mustelids. All samples were negative for SARS-CoV-2, with minimum detectable prevalence ranging between 0.49% and 4.78% in the 13 species reaching our threshold sample size of 59 individuals. Considering that within-species transmission in white-tailed deer resulted in raising the prevalence from 5% to 81% within a few months, this result would exclude a sustained cycle after spillback in the tested species.
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Affiliation(s)
- Stefania Leopardi
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
- Department of Veterinary Medicine, Università Aldo Moro di Bari, Valenzano, Italy
| | - Rosanna Desiato
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Quart, Italy
| | - Matteo Mazzucato
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Riccardo Orusa
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Quart, Italy
- National Reference Center Wildlife Diseases, Aosta Valley, Quart, Italy
| | - Federica Obber
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Daniela Averaimo
- Istituto Zooprofilattico Sperimentale di Abruzzo e Molise, Teramo, Italy
| | - Shadia Berjaoui
- Istituto Zooprofilattico Sperimentale di Abruzzo e Molise, Teramo, Italy
| | - Sabrina Canziani
- Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Brescia, Italy
| | - Maria Teresa Capucchio
- Department of Veterinary Sciences, Centro Animali Non Convenzionali (C.A.N.C), University of Turin, Turin, Italy
| | - Raffaella Conti
- Istituto Zooprofilattico Sperimentale di Lazio e Toscana, Roma, Italy
| | - Santina di Bella
- Istituto Zooprofilattico Sperimentale della Sicilia, Palermo, Italy
| | - Francesca Festa
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Luisa Garofalo
- Istituto Zooprofilattico Sperimentale di Lazio e Toscana, Roma, Italy
| | - Davide Lelli
- Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Brescia, Italy
- Molecular Medicine PhD Program, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | | | - Maria Lucia Mandola
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Quart, Italy
| | | | - Simone Peletto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Quart, Italy
| | - Silvia Pirani
- Istituto Zooprofilattico Sperimentale di Umbria e Marche, Perugia, Italy
| | - Serena Robetto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Quart, Italy
| | - Claudia Torresi
- Istituto Zooprofilattico Sperimentale di Umbria e Marche, Perugia, Italy
| | - Maria Varotto
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Carlo Citterio
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
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3
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Ratti G, Stranieri A, Giordano A, Oltolina M, Bonacina E, Magnone W, Morici M, Ravasio G, Paltrinieri S, Lauzi S. Molecular Detection of Feline Coronavirus in Captive Non-Domestic Felids from Zoological Facilities. Animals (Basel) 2022; 12:ani12141864. [PMID: 35883409 PMCID: PMC9312121 DOI: 10.3390/ani12141864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Non-domestic felids are well-known threatened species, and are susceptible to several diseases that also affect domestic cats. Among viral infections, fatal outbreaks of feline infectious peritonitis, caused by a feline coronavirus, have been reported in captive settings. Considering the devastating effects that this pathogen could have in non-domestic felids, the aim of this study was to assess the prevalence of feline coronavirus in captive non-domestic felids from Northern Italy, since in the literature, this information is not currently available. The overall prevalence of feline coronavirus in captive non-domestic felids from Northern Italy was 7.9%. Results of the present study highlight the need of control programs for feline coronavirus infection to prevent pathogen introduction into a naïve group of animals, which may lead to devastating effects on animal welfare and conservation programs. Abstract Cases of feline infectious peritonitis (FIP), a disease with a high mortality rate caused by the feline coronavirus (FCoV), have been reported in non-domestic felids, highlighting the need for surveys of FCoV in these endangered species. With the aim of adding information on FCoV prevalence in captive non-domestic felids, samples (feces or rectal swabs and, when available, oral swabs, blood, and abdominal effusion) collected between 2019 and 2021 from 38 non-domestic felids from three different zoological facilities of Northern Italy were tested for evidence of FCoV infection via RT-qPCR. Three animals were found to be FCoV positive, showing an overall 7.9% FCoV prevalence ranging from 0% to 60%, according to the zoological facility. FCoV infection was detected in tiger cubs of the same litter, and all of them showed FCoV-positive oral swabs, with low viral loads, whereas in one animal, FCoV presence was also detected in rectal swabs at low FCoV copy numbers. Future studies should be carried out, including samplings from a higher number of captive non-domestic felids, in order to gain a deeper knowledge of FCoV epidemiology within these populations.
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Affiliation(s)
- Gabriele Ratti
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (G.R.); (A.S.); (G.R.); (S.P.); (S.L.)
| | - Angelica Stranieri
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (G.R.); (A.S.); (G.R.); (S.P.); (S.L.)
| | - Alessia Giordano
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (G.R.); (A.S.); (G.R.); (S.P.); (S.L.)
- Correspondence: ; Tel.: +39-2-50-33-40-40
| | - Maurizio Oltolina
- Parco Faunistico Le Cornelle, Via Cornelle 16, 24030 Valbrembo, Italy;
| | - Eleonora Bonacina
- Ambulatorio Veterinario San Rocco, Viale della Vittoria 23/A, 23815 Introbio Valsassina, Italy;
| | - William Magnone
- Parco Natura Viva Garda Zoological Park S.r.l, Località Quercia, 37012 Bussolengo, Italy;
| | - Manuel Morici
- Pombia Park S.r.l., Via Larino 3, 28050 Pombia, Italy;
| | - Giuliano Ravasio
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (G.R.); (A.S.); (G.R.); (S.P.); (S.L.)
| | - Saverio Paltrinieri
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (G.R.); (A.S.); (G.R.); (S.P.); (S.L.)
| | - Stefania Lauzi
- Department of Veterinary Medicine and Animal Science, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (G.R.); (A.S.); (G.R.); (S.P.); (S.L.)
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FELINE CORONAVIRUS AND FELINE INFECTIOUS PERITONITIS IN NONDOMESTIC FELID SPECIES. J Zoo Wildl Med 2021; 52:14-27. [PMID: 33827157 DOI: 10.1638/2020-0134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2020] [Indexed: 11/21/2022] Open
Abstract
Feline coronavirus (FCoV) is reported worldwide and known to cause disease in domestic and nondomestic felid species. Although FCoV often results in mild to inapparent disease, a small subset of cats succumb to the fatal, systemic disease feline infectious peritonitis (FIP). An outbreak of FIP in Cheetahs (Acinonyx jubatus) in a zoological collection demonstrated the devastating effect of FCoV introduction into a naïve group of animals. In addition to cheetahs, FIP has been described in European wildcats (Felis silvestris), a tiger (Panthera tigris), a mountain lion (Puma concolor), and lion (Panthera leo). This paper reviews the reported cases of FIP in nondomestic felid species and highlights the surveys of FCoV in populations of nondomestic felids.
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Loock DJE, Rendón-Franco E, Williams ST, van Niekerk J, Swanepoel LH. Viral Prevalence in Wild Serval Population is Driven by Season and Sex. ECOHEALTH 2021; 18:113-122. [PMID: 34059963 PMCID: PMC8166362 DOI: 10.1007/s10393-021-01533-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 04/18/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
One of the key factors influencing the population dynamics of threatened species such as felids is disease, but long-term studies of the factors influencing seroprevalence of wild felids are extremely rare, hindering conservation efforts. We set out to determine seroprevalence of six viral diseases (feline panleukopenia virus, feline leukemia virus, feline coronavirus, feline calicivirus, feline herpes virus, and feline immunodeficiency virus) among a population of serval (Leptailurus serval) with an extremely high density in South Africa. We captured 55 individuals over four years and screened blood samples for antibodies to each virus. We found that seroprevalence were high (ranging from 30.0% positive for a single virus to 1.8% positive for up to five viruses) and that seroprevalence was influenced by season and sex, but not body condition. We suggest further monitoring of this population and recommend that long-term studies are conducted for serval and other felids to determine whether these trends are representative on a broader scale.
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Affiliation(s)
- Daan J E Loock
- Centre for Sustainable Agriculture, Faculty of Natural and Agricultural Sciences, University of the Free State, 205 Nelson Mandela Drive, Park West, Bloemfontein, 930, South Africa.
| | - Emilio Rendón-Franco
- Departamento de Producción Agrícola y Animal, UAM-Unidad Xochimilco, Calzada del Hueso, Coyoacán, Ciudad de México, 04960, México
| | - Samual T Williams
- Department of Zoology, School of Mathematical and Natural Sciences, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
- Department of Anthropology, Durham University, Durham, DH1 3LE, UK
- Institute for Globally Distributed Open Research and Education (IGDORE), Göteborg, Sweden
| | - Johan van Niekerk
- Centre for Sustainable Agriculture, Faculty of Natural and Agricultural Sciences, University of the Free State, 205 Nelson Mandela Drive, Park West, Bloemfontein, 930, South Africa
| | - Lourens H Swanepoel
- Department of Zoology, School of Mathematical and Natural Sciences, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
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Chen CC, Chang AM, Chen WJ, Chang PJ, Lai YC, Lee HH. Molecular survey of selected viral pathogens in wild leopard cats (Prionailurus bengalensis) in Taiwan with an emphasis on the spatial and temporal dynamics of carnivore protoparvovirus 1. Arch Virol 2021; 166:427-438. [PMID: 33389172 PMCID: PMC7778563 DOI: 10.1007/s00705-020-04904-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 10/19/2020] [Indexed: 11/27/2022]
Abstract
The leopard cat (Prionailurus bengalensis) was listed as an endangered species under the Wildlife Conservation Act in Taiwan in 2009. However, no study has evaluated the possible direct or indirect effects of pathogens on the Taiwanese leopard cat population. Here, we targeted viral pathogens, including carnivore protoparvovirus 1 (genus Protoparvovirus), feline leukemia virus (FeLV), feline immunodeficiency virus (FIV), coronaviruses (CoVs), and canine distemper virus (CDV), through molecular screening. The spatial and temporal dynamics of the target pathogens were evaluated. Through sequencing and phylogenetic analysis, we clarified the phylogenetic relationship of viral pathogens isolated from leopard cats and domestic carnivores. Samples from 23 live-trapped leopard cats and 29 that were found dead were collected from 2015 to 2019 in Miaoli County in northwestern Taiwan. Protoparvoviruses and CoVs were detected in leopard cats, and their prevalence (95% confidence interval) was 63.5% (50.4%–76.6%) and 8.8% (0%–18.4%), respectively. Most of the protoparvovirus sequences amplified from Taiwanese leopard cats and domestic carnivores were identical. All of the CoV sequences amplified from leopard cats were identified as feline CoV. No spatial or temporal aggregation of protoparvovirus infection in leopard cats was found in the sampling area, indicating a wide distribution of protoparvoviruses in the leopard cat habitat. We consider sympatric domestic carnivores to be the probable primary reservoir for the identified pathogens. We strongly recommend management of protoparvoviruses and feline CoV in the leopard cat habitat, particularly vaccination programs and population control measures for free-roaming dogs and cats.
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Affiliation(s)
- Chen-Chih Chen
- Institute of Wildlife Conservation, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan.
- Research Center for Animal Biologics, National Pingtung University of Science and Technology, Pingtung, Taiwan.
| | - Ai-Mei Chang
- Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Wan-Jhen Chen
- Institute of Wildlife Conservation, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Po-Jen Chang
- Formosan Wild Sound Conservation Science Center, Miaoli, Taiwan
| | - Yu-Ching Lai
- Department of Landscape Architecture and Environmental Design, Huafan University, New Taipei City, Taiwan
| | - Hsu-Hsun Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
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7
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Decaro N, Lorusso A. Novel human coronavirus (SARS-CoV-2): A lesson from animal coronaviruses. Vet Microbiol 2020; 244:108693. [PMID: 32402329 PMCID: PMC7195271 DOI: 10.1016/j.vetmic.2020.108693] [Citation(s) in RCA: 231] [Impact Index Per Article: 57.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/10/2020] [Accepted: 04/10/2020] [Indexed: 12/16/2022]
Abstract
The recent pandemic caused by the novel human coronavirus, referrred to as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), not only is having a great impact on the health care systems and economies in all continents but it is also causing radical changes of common habits and life styles. The novel coronavirus (CoV) recognises, with high probability, a zoonotic origin but the role of animals in the SARS-CoV-2 epidemiology is still largely unknown. However, CoVs have been known in animals since several decades, so that veterinary coronavirologists have a great expertise on how to face CoV infections in animals, which could represent a model for SARS-CoV-2 infection in humans. In the present paper, we provide an up-to-date review of the literature currently available on animal CoVs, focusing on the molecular mechanisms that are responsible for the emergence of novel CoV strains with different antigenic, biologic and/or pathogenetic features. A full comprehension of the mechanisms driving the evolution of animal CoVs will help better understand the emergence, spreading, and evolution of SARS-CoV-2.
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Affiliation(s)
- Nicola Decaro
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy.
| | - Alessio Lorusso
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise 'G. Caporale', Teramo, Italy
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Characterization of monoclonal antibodies against feline coronavirus accessory protein 7b. Vet Microbiol 2015; 184:11-9. [PMID: 26854339 PMCID: PMC7117465 DOI: 10.1016/j.vetmic.2015.12.009] [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] [Received: 10/02/2015] [Revised: 12/09/2015] [Accepted: 12/17/2015] [Indexed: 12/02/2022]
Abstract
Generation of monoclonal antibodies against accessory protein 7b of feline coronavirus. Identification of reactive epitopes. Relevance of glycosylation site for antigenicity.
Feline coronaviruses (FCoVs) encode five accessory proteins termed 3a, 3b, 3c, 7a and 7b of unknown function. These proteins are dispensable for viral replication in vitro but are supposed to play a role in virulence. In the current study, we produced and characterized 7b-specific monoclonal antibodies (mAbs). A recombinant form of the 7b protein was expressed as a fusion protein in Escherichia coli, purified by immobilized metal affinity chromatography and used as immunogen. Two hybridoma lines, 5B6 and 14D8, were isolated that expressed mAbs that recognized 7b proteins of both FCoV serotypes. Using an extensive set of N- and C-terminally truncated 7b proteins expressed in E. coli and a synthetic peptide, the binding sites of mAbs 5B6 and 14D8 were mapped to an 18-residue region that comprises the only potential N-glycosylation site of the FCoV 7b protein. The two mAbs were suitable to detect a 24-kDa protein, which represents the nonglycosylated form of 7b in FCoV-infected cells. We speculate that glycosylation of 7b is part of the viral evasion strategy to prevent an immune response against this antigenic site.
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9
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Positive immunolabelling for feline infectious peritonitis in an African lion (Panthera leo) with bilateral panuveitis. J Comp Pathol 2015; 152:265-8. [PMID: 25678422 PMCID: PMC7094505 DOI: 10.1016/j.jcpa.2014.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 12/01/2014] [Accepted: 12/16/2014] [Indexed: 11/21/2022]
Abstract
A 15-year-old male African lion (Panthera leo) was presented with blindness due to bilateral panuveitis with retinal detachment. Feline coronavirus (FCoV) antigen was identified immunohistochemically in ocular macrophages, consistent with a diagnosis of feline infectious peritonitis (FIP) infection. This is the first report of FIP in an African lion and the first report of ocular FIP in a non-domestic felid.
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Bank-Wolf BR, Stallkamp I, Wiese S, Moritz A, Tekes G, Thiel HJ. Mutations of 3c and spike protein genes correlate with the occurrence of feline infectious peritonitis. Vet Microbiol 2014; 173:177-88. [PMID: 25150756 PMCID: PMC7117521 DOI: 10.1016/j.vetmic.2014.07.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 07/18/2014] [Accepted: 07/27/2014] [Indexed: 01/28/2023]
Abstract
The genes encoding accessory proteins 3a, 3b, 3c, 7a and 7b, the S2 domain of the spike (S) protein gene and the membrane (M) protein gene of feline infectious peritonitis virus (FIPV) and feline enteric coronavirus (FECV) samples were amplified, cloned and sequenced. For this faeces and/or ascites samples from 19 cats suffering from feline infectious peritonitis (FIP) as well as from 20 FECV-infected healthy cats were used. Sequence comparisons revealed that 3c genes of animals with FIP were heavily affected by nucleotide deletions and point mutations compared to animals infected with FECV; these alterations resulted either in early termination or destruction of the translation initiation codon. Two ascites-derived samples of cats with FIP which displayed no alterations of ORF3c harboured mutations in the S2 domain of the S protein gene which resulted in amino acid exchanges or deletions. Moreover, changes in 3c were often accompanied by mutations in S2. In contrast, in samples obtained from faeces of healthy cats, the ORF3c was never affected by such mutations. Similarly ORF3c from faecal samples of the cats with FIP was mostly intact and showed only in a few cases the same mutations found in the respective ascites samples. The genes encoding 3a, 3b, 7a and 7b displayed no mutations linked to the feline coronavirus (FCoV) biotype. The M protein gene was found to be conserved between FECV and FIPV samples. Our findings suggest that mutations of 3c and spike protein genes correlate with the occurrence of FIP.
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Affiliation(s)
- Barbara Regina Bank-Wolf
- Institut für Virologie, Fachbereich Veterinärmedizin, Justus-Liebig-Universität Giessen, Biomedizinisches Forschungszentrum Seltersberg, Schubertstrasse 81, 35392 Giessen, Germany
| | - Iris Stallkamp
- Institut für Virologie, Fachbereich Veterinärmedizin, Justus-Liebig-Universität Giessen, Biomedizinisches Forschungszentrum Seltersberg, Schubertstrasse 81, 35392 Giessen, Germany
| | - Svenja Wiese
- Institut für Virologie, Fachbereich Veterinärmedizin, Justus-Liebig-Universität Giessen, Biomedizinisches Forschungszentrum Seltersberg, Schubertstrasse 81, 35392 Giessen, Germany
| | - Andreas Moritz
- Klinik für Kleintiere, Fachbereich Veterinärmedizin, Justus-Liebig-Universität Giessen, Frankfurter Str. 126, 35392 Giessen, Germany
| | - Gergely Tekes
- Institut für Virologie, Fachbereich Veterinärmedizin, Justus-Liebig-Universität Giessen, Biomedizinisches Forschungszentrum Seltersberg, Schubertstrasse 81, 35392 Giessen, Germany
| | - Heinz-Jürgen Thiel
- Institut für Virologie, Fachbereich Veterinärmedizin, Justus-Liebig-Universität Giessen, Biomedizinisches Forschungszentrum Seltersberg, Schubertstrasse 81, 35392 Giessen, Germany.
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11
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Jiménez A, Sánchez B, Pérez Alenza D, García P, López JV, Rodriguez A, Muñoz A, Martínez F, Vargas A, Peña L. Membranous glomerulonephritis in the Iberian lynx (Lynx pardinus). Vet Immunol Immunopathol 2007; 121:34-43. [PMID: 17931707 PMCID: PMC7112601 DOI: 10.1016/j.vetimm.2007.07.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Revised: 07/06/2007] [Accepted: 07/18/2007] [Indexed: 11/29/2022]
Abstract
The Iberian lynx is the most endangered felid species in the world, confined nowadays to two isolated metapopulations in the southwest of Spain, where less than 200 individuals survive. Little is known about the diseases that affect these animals in the wild or in captivity. Kidney samples from necropsies of 27 Iberian lynxes, wild and captive, were examined by histopathology, immunohistochemistry (IgG, IgM, IgA, laminin, type IV collagen, and fibronectin), electron microscopy (n=8) and immunogold labelling for IgM, IgG and IgA in one case, in order to characterize the glomerulopathy prevalent in this species. Urinalyses from records were available for 9 of the necropsied animals and blood and urine samples from 23 free ranging and captive Iberian lynxes were prospectively obtained in order to evaluate the renal function of the living population. A focal, diffuse membranous glomerulonephritis (MGN) that progressed with age was diagnosed in all but one of the animals in different stages not associated to concurrently known infectious diseases. Positive immunoexpression of IgM and IgG was observed in the glomerular capillary basement membranes and intramembranous electron-dense deposits, compatible with immune complexes (ICs) were seen with electron microscopy. The immunogold labelling was also positive for IgM and IgG in the electron-dense areas. The serum biochemistry and urinalyses also revealed signs of mild chronic kidney disease in 16 of the 23 animals evaluated. In conclusion, the membranous glomerulopathy affecting the Iberian lynx is a progressive disease of immune origin. We postulate a possible genetic predisposition towards the disease, enhanced by inbreeding and a possible connection to an immune-mediated systemic disease.
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Affiliation(s)
- Angeles Jiménez
- Department of Animal Medicine and Surgery (Pathology), Veterinary School, Complutense University of Madrid, 28040 Madrid, Spain
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Abstract
The article discusses feline infectious peritonitis (FIP), an important disease frequently seen in veterinary practice. FIP causes many problems to the veterinarian as it can be difficult to definitively diagnose the disease, as there is no effective treatment, and as prophylactic interventions are not very successful. Although intense research has created a lot of new knowledge about this disease in the last years, there are still many unanswered questions. The objective of this article is to review recent knowledge and to increase understanding of the complex pathogenesis of FIP.
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Affiliation(s)
- Katrin Hartmann
- Clinic of Small Animal Medicine, Ludwig-Maximilians-Universität München, Veterinaerstrasse 13, 80539 Munich, Germany.
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