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Parisi F, Fonti N, Millanta F, Freer G, Pistello M, Poli A. Exploring the link between viruses and cancer in companion animals: a comprehensive and comparative analysis. Infect Agent Cancer 2023; 18:40. [PMID: 37386451 DOI: 10.1186/s13027-023-00518-7] [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: 05/12/2023] [Accepted: 06/16/2023] [Indexed: 07/01/2023] Open
Abstract
Currently, it is estimated that 15% of human neoplasms globally are caused by infectious agents, with new evidence emerging continuously. Multiple agents have been implicated in various forms of neoplasia, with viruses as the most frequent. In recent years, investigation on viral mechanisms underlying tumoral transformation in cancer development and progression are in the spotlight, both in human and veterinary oncology. Oncogenic viruses in veterinary medicine are of primary importance not only as original pathogens of pets, but also in the view of pets as models of human malignancies. Hence, this work will provide an overview of the main oncogenic viruses of companion animals, with brief notes of comparative medicine.
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Affiliation(s)
- Francesca Parisi
- Dipartimento di Scienze Veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy.
| | - Niccolò Fonti
- Dipartimento di Scienze Veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy
| | - Francesca Millanta
- Dipartimento di Scienze Veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy
| | - Giulia Freer
- Dipartimento di Ricerca Traslazionale e delle Nuove Tecnologie in Medicina e Chirurgia, Università di Pisa, Via Risorgimento, 36, 56126, Pisa, Italy
| | - Mauro Pistello
- Dipartimento di Ricerca Traslazionale e delle Nuove Tecnologie in Medicina e Chirurgia, Università di Pisa, Via Risorgimento, 36, 56126, Pisa, Italy
| | - Alessandro Poli
- Dipartimento di Scienze Veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy
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Medeiros-Fonseca B, Faustino-Rocha AI, Medeiros R, Oliveira PA, Gil da Costa RM. Canine and feline papillomaviruses: an update. Front Vet Sci 2023; 10:1174673. [PMID: 37261110 PMCID: PMC10229045 DOI: 10.3389/fvets.2023.1174673] [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: 02/26/2023] [Accepted: 04/27/2023] [Indexed: 06/02/2023] Open
Abstract
Papillomaviruses are small viruses able to cause disease not only in mammalians, but also in birds and reptiles. In recent years, a rising number of papillomaviruses have been identified in dogs and cats, totaling 24 canine papillomavirus (CPV) and six feline papillomavirus (FcaPV). The canine and feline papillomaviruses (CPVs and FcaPVs, respectively) are responsible for multiple lesions in these domestic species but the potential pathological relevance of some recently identified types remains to be determined. CPVs are associated with oral papillomatosis, cutaneous papillomas and viral pigmented plaques, and have been rarely associated with the development of oral and cutaneous squamous cell carcinomas in their canine hosts. FcaPVs are associated with oral papillomas, viral plaques, and Bowenoid in situ carcinomas. The present review provides readers with the more recent advances on dog and cat papillomavirus research, bringing an update on this field to both veterinary practitioners and the virology community at large.
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Affiliation(s)
- Beatriz Medeiros-Fonseca
- Institute for Innovation, Capacity Building and Sustainability of Agri-food Production (Inov4Agro), Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/Health Research Network (RISE)@CI-IPOP, Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
| | - Ana I. Faustino-Rocha
- Institute for Innovation, Capacity Building and Sustainability of Agri-food Production (Inov4Agro), Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal
- Department of Zootechnics, School of Sciences and Technology, University of Évora, Évora, Portugal
- Comprehensive Health Research Center (CHRC), Évora, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/Health Research Network (RISE)@CI-IPOP, Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
- Abel Salazar Institute for the Biomedical Sciences, Porto, Portugal
- FP-I3ID, FP-ENAS, FP-BHS, University Fernando Pessoa, Porto, Portugal
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
- Research Department, Portuguese League Against Cancer (NRNorte), Porto, Portugal
| | - Paula A. Oliveira
- Institute for Innovation, Capacity Building and Sustainability of Agri-food Production (Inov4Agro), Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Rui M. Gil da Costa
- Institute for Innovation, Capacity Building and Sustainability of Agri-food Production (Inov4Agro), Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Vila Real, Portugal
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/Health Research Network (RISE)@CI-IPOP, Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Porto, Portugal
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Faculty of Engineering, University of Porto, Porto, Portugal
- Postgraduate Programme in Adult Health (PPGSAD), Department of Morphology, Federal University of Maranhão (UFMA), UFMA University Hospital (HUUFMA), São Luís, Brazil
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Shimazaki Y, Yoneya S, Fujita S, Nakashima T, Nabeshima K, Sudoh S, Matsubara K, Okumura N, Kondo H, Nishifuji K, Koba R, Tohya Y. Identification and characterization of the genome of a papillomavirus from skin lesions of four-toed hedgehogs (Atelerix albiventris). Virus Genes 2023; 59:234-239. [PMID: 36626061 DOI: 10.1007/s11262-022-01965-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 12/20/2022] [Indexed: 01/11/2023]
Abstract
The present study describes the clinical and pathological characteristics of skin lesions in two four-toed hedgehogs (Atelerix albiventris). We performed inverse PCR to identify the genome of papillomavirus (PV) in the skin lesions and subsequently sequenced the full genome of the virus, which was tentatively named Atelerix albiventris papillomavirus 1 (AalbPV1). The overall sequences of the viral genomes of both four-toed hedgehogs were identical. This study first identified the presence of a novel PV in Japanese four-toed hedgehogs and provided genetic information about this virus.
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Affiliation(s)
- Yotaro Shimazaki
- Faculty of Agriculture, Animal Medical Center, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Shion Yoneya
- Laboratory of Veterinary Microbiology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa, 252-0880, Japan
| | - Shigeru Fujita
- Laboratory of Veterinary Microbiology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa, 252-0880, Japan
- Division of Systems Virology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Tomomi Nakashima
- IDEXX Laboratories, K.K., 5-8-18 Kajinocho, Koganei-shi, Tokyo, 184-8515, Japan
| | - Kei Nabeshima
- Ecological Risk Assessment and Control Section Center for Environmental Biology and Ecosystem, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba-shi, Ibaraki, 305-8506, Japan
| | - Sumire Sudoh
- Banquet Animal Hospital, 1-3-23 Mishuku, Setagaya-ku, Tokyo, 154-0005, Japan
| | - Katsuki Matsubara
- Banquet Animal Hospital, 1-3-23 Mishuku, Setagaya-ku, Tokyo, 154-0005, Japan
| | - Naka Okumura
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa, 252-0880, Japan
| | - Hirotaka Kondo
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa, 252-0880, Japan
| | - Koji Nishifuji
- Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Ryota Koba
- Laboratory of Veterinary Microbiology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa, 252-0880, Japan.
| | - Yukinobu Tohya
- Laboratory of Veterinary Microbiology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa, 252-0880, Japan
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Munday JS, Orbell G, Robinson L. Detection of a novel papillomaviral sequence in viral plaques confined to the pinna of a dog. Vet Dermatol 2023. [PMID: 36941227 DOI: 10.1111/vde.13157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 03/23/2023]
Abstract
A raised plaque that contained histological evidence of papillomavirus infection and sequences from a novel papillomavirus type developed close to the ear canal of a 14-year-old West Highland white terrier. The plaque was excised, and further plaques developed within the same area of pinna.
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Affiliation(s)
- John S Munday
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Geoff Orbell
- Gribbles Veterinary Pathology Ltd, Palmerston North, New Zealand
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Genomic Characterisation of Canis Familiaris Papillomavirus Type 24, a Novel Papillomavirus Associated with Extensive Pigmented Plaque Formation in a Pug Dog. Viruses 2022; 14:v14112357. [PMID: 36366455 PMCID: PMC9693439 DOI: 10.3390/v14112357] [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: 10/04/2022] [Revised: 10/13/2022] [Accepted: 10/25/2022] [Indexed: 02/01/2023] Open
Abstract
Numerous large dark plaques developed over the ventrum, legs and head of a 9-year-old pug dog over a 4-year-period. Histology confirmed a diagnosis of viral pigmented plaque and a short section of a novel papillomavirus (PV) type was amplified using consensus PCR primers. Taking advantage of the circular nature of PV DNA, 'outward facing' PCR primers allowed amplification of the full sequence. As this is the 24th PV known to infect dogs, the novel PV was designated canine papillomavirus (CPV) type 24. The CPV24 genome contained putative coding regions for 5 early proteins and 2 late ones. The CPV24 open reading frame L1 showed the highest (78.2%) similarity to CPV4 and phylogenetic analysis showed that CPV24 clustered with CPV4 and CPV16 suggesting CPV24 is the third species 2 Chipapillomavirus type identified in dogs. This is the third report of extensive pigmented plaques covering a high proportion of the skin. Both previous cases were caused CPV4 and, considering the high genetic similarity between CPV4 and CP24, infection by these CPV types may predispose to more severe clinical disease. In addition, as plaques caused by CPV16 appear more likely to progress to neoplasia, the detection of a species 2 Chipapillomavirus within a pigmented plaque may indicate the potential for more severe disease.
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Munday JS, Lam ATH, Sakai M. Extensive progressive pigmented viral plaques in a Chihuahua dog. Vet Dermatol 2022; 33:252-254. [PMID: 35018688 DOI: 10.1111/vde.13056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/17/2021] [Accepted: 11/02/2021] [Indexed: 11/28/2022]
Abstract
Extensive exophytic pigmented viral plaques developed on a Chihuahua dog causing pruritus and discomfort. Neither the medical treatments used nor a papillomavirus vaccine resulted in clinical improvement. Laser surgery removed some plaques, yet others developed. This case illustrates the difficulty in treating viral plaques and the progressive nature of this disease.
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Affiliation(s)
- John S Munday
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Andrea T H Lam
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California at Davis, Davis, CA, USA
| | - Mary Sakai
- Animal Dermatology & Allergy, Rocklin, CA, USA
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YU M, CHAMBERS JK, TSUZUKI M, YAMASHITA N, USHIGUSA T, HAGA T, NAKAYAMA H, UCHIDA K. Pigmented viral plaque and basal cell tumor associated with canine papillomavirus infection in Pug dogs. J Vet Med Sci 2019; 81:1643-1648. [PMID: 31554746 PMCID: PMC6895623 DOI: 10.1292/jvms.19-0384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/11/2019] [Indexed: 12/20/2022] Open
Abstract
Pigmented viral plaque is most commonly seen in Pug dogs in association with canine papillomavirus (CPV). In the present study, nucleic acid sequence and localization of viral genes were examined in 4 cases of pigmented viral plaque in Pug dogs. The results of polymerase chain reaction and nucleic acid sequence analysis showed that the 3 cases with pigmented viral plaque were infected with CPV4, and 1 case with CPV18. In the case with CPV18-positive viral plaque, CPV18 gene was also detected in a lesion of cytokeratin-14- and P63-positive basal cell tumor that developed adjacent to a pigmented viral plaque. Moreover, CPV gene was detected in the squamous cells of pigmented viral plaques and the neoplastic cells of basal cell tumor by in situ hybridization. This is the first report of basal cell tumor associated with CPV18-infection in the dog. Infection of CPV18 may be associated with development of basal cell tumor.
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Affiliation(s)
- Miao YU
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - James. K. CHAMBERS
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masano TSUZUKI
- Laboratory of Infection Control and Disease Prevention, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Nanako YAMASHITA
- Laboratory of Infection Control and Disease Prevention, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | | | - Takeshi HAGA
- Laboratory of Infection Control and Disease Prevention, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Hiroyuki NAKAYAMA
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Kazuyuki UCHIDA
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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Luff J, Mader M, Rowland P, Britton M, Fass J, Yuan H. Viral genome integration of canine papillomavirus 16. PAPILLOMAVIRUS RESEARCH 2019; 7:88-96. [PMID: 30771493 PMCID: PMC6402295 DOI: 10.1016/j.pvr.2019.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/30/2019] [Accepted: 02/12/2019] [Indexed: 01/03/2023]
Abstract
Papillomaviruses infect humans and animals, most often causing benign proliferations on skin or mucosal surfaces. Rarely, these infections persist and progress to cancer. In humans, this transformation most often occurs with high-risk papillomaviruses, where viral integration is a critical event in carcinogenesis. The first aim of this study was to sequence the viral genome of canine papillomavirus (CPV) 16 from a pigmented viral plaque that progressed to metastatic squamous cell carcinoma in a dog. The second aim was to characterize multiple viral genomic deletions and translocations as well as host integration sites. The full viral genome was identified using a combination of PCR and high throughput sequencing. CPV16 is most closely related to chipapillomaviruses CPV4, CPV9, and CPV12 and we propose CPV16 be classified as a chipapillomavirus. Assembly of the full viral genome enabled identification of deletion of portions of the E1 and E2/E4 genes and two viral translocations within the squamous cell carcinoma. Genome walking was performed which identified four sites of viral integration into the host genome. This is the first description of integration of a canine papillomavirus into the host genome, raising the possibility that CPV16 may be a potential canine high-risk papillomavirus type.
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Affiliation(s)
- Jennifer Luff
- Department of Population Health and Pathobiology, North Carolina State University, Raleigh, North Carolina, USA.
| | - Michelle Mader
- Department of Population Health and Pathobiology, North Carolina State University, Raleigh, North Carolina, USA
| | | | - Monica Britton
- UC Davis Genome Center-Bioinformatics Core, University of California, Davis, CA, USA
| | - Joseph Fass
- UC Davis Genome Center-Bioinformatics Core, University of California, Davis, CA, USA
| | - Hang Yuan
- Department of Pathology, Georgetown University Medical Center, Washington, DC, USA
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Lange CE, Diallo A, Zewe C, Ferrer L. Novel canine papillomavirus type 18 found in pigmented plaques. PAPILLOMAVIRUS RESEARCH (AMSTERDAM, NETHERLANDS) 2016; 2:159-163. [PMID: 29074175 PMCID: PMC5886900 DOI: 10.1016/j.pvr.2016.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 08/29/2016] [Accepted: 08/30/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Christian E Lange
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, USA.
| | - Alos Diallo
- Immunology Division, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts, USA
| | - Christine Zewe
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, USA
| | - Lluis Ferrer
- Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, USA
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Abstract
Papillomaviruses are associated with benign and malignant neoplasias of the skin and mucous membranes. The sequence of a novel canine papillomavirus was determined from DNA detected in the oral cavity of a dog. The sequence of the novel virus canine papillomavirus type 13 (CPV13) shares the highest levels of similarity with the Tau papillomaviruses CPV2 and CPV7.
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Luff JA, Affolter VK, Yeargan B, Moore PF. Detection of six novel papillomavirus sequences within canine pigmented plaques. J Vet Diagn Invest 2012; 24:576-80. [PMID: 22529129 DOI: 10.1177/1040638712443360] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
In dogs, papillomaviruses are thought to cause oral and cutaneous papillomas and pigmented plaques. Eight canine papillomaviruses have been fully sequenced to date. Four of these canine papillomaviruses, including Canis familiaris papillomavirus (CPV)-3, CPV-4, CPV-5, and CPV-8, were amplified from pigmented plaques. Given the identification of several different canine papillomaviruses within pigmented plaques, it is likely that there are additional papillomavirus sequences that have not been previously identified. The aim of the present study was to amplify papillomavirus DNA from pigmented plaques and identify potentially novel papillomavirus sequences through nucleotide sequence analysis. Polymerase chain reaction was used to amplify DNA sequences of the papillomavirus L1 gene from 27 pigmented plaques. Identification of novel papillomavirus sequences was based on less than 90% shared DNA homology to any known papillomavirus. DNA from 10 different papillomaviruses was identified within the pigmented plaques, including 6 putative novel papillomavirus sequences. CPV-4 was detected within 41% (11/27) of the pigmented plaques, while CPV-5 was identified within 2 pigmented plaques and CPV-3 within a single pigmented plaque. A previously identified novel papillomavirus sequence was identified within 2 pigmented plaques. The remaining 11 pigmented plaques contained 6 papillomavirus DNA sequences that have not been previously reported. These putative novel PV sequences were most similar to the canine papillomaviruses that have been detected within canine pigmented plaques.
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Affiliation(s)
- Jennifer A Luff
- Department of Pathology, Microbiology, and Immunology, One Shields Avenue, Room 4206, Building VM3A, School of Veterinary Medicine, University of California, Davis, Davis, CA 95616, USA.
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Clinically healthy skin of dogs is a potential reservoir for canine papillomaviruses. J Clin Microbiol 2010; 49:707-9. [PMID: 21159938 DOI: 10.1128/jcm.02047-10] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Papillomaviruses have been linked to several skin disorders in the dog. In order to have a suitable diagnostic tool for canine papillomavirus detection, eight PCRs with published primer combinations were evaluated. The most sensitive PCR was used to demonstrate that papillomavirus DNA can be detected on nonlesional skin of dogs.
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Lange CE, Tobler K, Favrot C, Müller M, Nöthling JO, Ackermann M. Detection of antibodies against epidermodysplasia verruciformis-associated canine papillomavirus 3 in sera of dogs from Europe and Africa by enzyme-linked immunosorbent assay. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2009; 16:66-72. [PMID: 19038784 PMCID: PMC2620667 DOI: 10.1128/cvi.00346-08] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Revised: 11/10/2008] [Accepted: 11/17/2008] [Indexed: 11/20/2022]
Abstract
The role of papillomaviruses (PVs) in the development of canine cancers is controversial. However, recently a novel canine PV (CPV3) was detected in a dog affected with a condition reminiscent of epidermodysplasia verruciformis (EV). The aim of the present study was to investigate the seroprevalence of CPV3 by using generic enzyme-linked immunosorbent assays (ELISAs) for the detection of antibodies against either canine oral PV (COPV) or CPV3. Therefore, the capsid proteins of both PV types were expressed as glutathione S-transferase fusion protein antigens and adsorbed to glutathione-casein-coated ELISA plates. After showing that PV type-specific antibodies could be detected in the sera from dogs with confirmed COPV or CPV3 infection, CPV3- and COPV-seropositive samples were detected in two sets of canine sera collected in Switzerland and South Africa, respectively. We found specific antibodies against COPV and CPV3 among the tested sera and also a large number that were positive for both antigens. The seroprevalences of PV antibodies of 21.9% (COPV) and 26.9% (CPV3) among the tested dogs from South Africa were higher than those among the dogs from Switzerland at 10.5% (COPV) and 1.3% (CPV3). Our data suggest a need for further CPV-related seroepidemiological surveys in different countries, especially in the context of clinical manifestations and possible breed predispositions. For this purpose, the newly developed ELISAs can be a useful tool.
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Affiliation(s)
- C E Lange
- Institute of Virology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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