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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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Acevedo-Jiménez GE, Sarmiento-Silva RE, Alonso-Morales RA, Córdova-Ponce R, Ramírez-Álvarez H. Detection and genetic characterization of feline retroviruses in domestic cats with different clinical signs and hematological alterations. Arch Virol 2023. [DOI: https:/doi.org/10.1007/s00705-022-05627-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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3
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Detection and genetic characterization of feline retroviruses in domestic cats with different clinical signs and hematological alterations. Arch Virol 2023; 168:2. [DOI: 10.1007/s00705-022-05627-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 10/17/2022] [Indexed: 12/23/2022]
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Sequeira I, Pires MDA, Leitão J, Henriques J, Viegas C, Requicha J. Feline Oral Squamous Cell Carcinoma: A Critical Review of Etiologic Factors. Vet Sci 2022; 9:vetsci9100558. [PMID: 36288171 PMCID: PMC9609408 DOI: 10.3390/vetsci9100558] [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: 08/01/2022] [Revised: 09/30/2022] [Accepted: 10/02/2022] [Indexed: 11/07/2022] Open
Abstract
Simple Summary Feline oral squamous cell carcinoma (FOSCC) is the most common oral neoplasia in cats. This malignant tumor is locally invasive, has a high mortality rate, and its etiology is not yet known. A critical review about the potential etiologic factors of FOSCC was performed, considering publications between 2000 and 2022. The initial search resulted in 553 publications, with only 26 of these being included in the review. Sixteen studies were related to viral etiology and nine related to environmental factors such as exposure to tobacco smoke, ectoparasitic products, and the presence of oral comorbidities. When evaluated, feline papillomavirus was detected in 16.2% of samples of FOSCC. In the three studies focused on exposure to tobacco smoke, 35.2% (30/85) of cats with FOSCC had a history of this exposure. Among 485 cats with FOSCC, 6.4% had dental and oral pathology. The present study demonstrates that the available evidence on the etiology of FOSCC is still limited, however, there has been increasing interest in this topic. Abstract Feline oral squamous cell carcinoma (FOSCC) is the most common oral neoplasia in cats. This malignant tumor is locally invasive, has a high mortality rate, and its etiology is not yet known. In humans, head and neck squamous cell carcinoma is associated with tobacco smoke, alcohol consumption, and human papillomavirus infection. Herein, a critical review about the potential etiologic factors of FOSCC was performed, considering publications between 2000 and 2022, aiming to synthesize all available scientific evidence regarding this issue. Recommendations of the PRISMA statement and the Cochrane Collaboration were followed and the PubMed database searched by using the MeSH terms MeSH terms “oral”, “mouth”, “lingual”, “labial”, “gingiva”, “carcinoma”, “squamous”, and “feline”. The selection process for eligible studies was based on specific inclusion and exclusion criteria and the quality of the studies assessed. The initial search resulted in 553 publications, with only 26 of these being included in the review. Sixteen studies were related to viral etiology and nine related to environmental factors such as exposure to tobacco smoke, ectoparasitic products, and the presence of oral comorbidities. When evaluated, feline papillomavirus was detected in 16.2% of samples of FOSCC. In the three studies focused on exposure to tobacco smoke, 35.2% (30/85) of cats with FOSCC had a history of this exposure. The consumption of canned food and the use of deworming collars were associated, in only one publication, with a risk of neoplasia increased by 4.7 and 5.3 times, respectively. Among 485 cats with FOSCC, 6.4% had dental and oral pathology (i.e., periodontal disease or feline chronic gingivostomatitis). The present study demonstrates that the available evidence on the etiology of FOSCC is still limited, however, there has been an increasing interest on this topic. To better understand the role of the possible etiological factors of this aggressive disease, and model for its human counterpart, large, prospective multi-institutional studies are needed.
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Affiliation(s)
- Inês Sequeira
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Maria dos Anjos Pires
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 5000-801 Vila Real, Portugal
| | - José Leitão
- Department of Sport, Exercise and Health Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Joaquim Henriques
- Oncology Service, Centre Hospitalière Vétérinaire Frégis, 94110 Arcueil, France
| | - Carlos Viegas
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 5000-801 Vila Real, Portugal
| | - João Requicha
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 5000-801 Vila Real, Portugal
- Correspondence: ; Tel.: +351-967-793-272
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Clinicopathological and Epidemiological Findings in Pet Cats Naturally Infected with Feline Immunodeficiency Virus (FIV) in Australia. Viruses 2022; 14:v14102177. [PMID: 36298731 PMCID: PMC9608632 DOI: 10.3390/v14102177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/25/2022] Open
Abstract
Feline immunodeficiency virus (FIV) infection in experimentally infected domestic cats produces characteristic clinical manifestations including hematological changes, neurological disease, neoplasia (most notably lymphoma) and lymphopenia-mediated immunodeficiency predisposing cats to a range of secondary infections. Conflicting reports exist, however, with regard to disease associations and survival time in naturally FIV-infected cats. The purpose of this retrospective case−control study was to investigate the effect of natural FIV infection on hematological, blood biochemical and urinalysis parameters and survival time in three cohorts of pet cats in Australia. Cohorts 1 and 2 were recruited from a large veterinary hospital in Melbourne, Victoria (n = 525 and 282), while a third cohort consisted of cats recruited from around Australia as part of a FIV field vaccine efficacy trial (n = 425). FIV-infected cats in cohorts 1, 2 and 3 were found to have 15/37 (41%), 13/39 (33%) and 2/13 (15%) clinicopathological parameters significantly different to FIV-uninfected cats, respectively. Two changes in FIV-infected cats in cohort 1, hypochromia (low hemoglobin) and hyperglobulinemia, were outside the supplied reference intervals and should serve as diagnostic triggers for FIV testing. Kaplan−Meier survival analysis of cats in cohorts 1 and 2 combined did not find any difference between FIV-infected and FIV-uninfected cats, however a confounding factor was a large euthanasia rate within the first 12 months in both groups. Three significant (p < 0.05) spatial clusters of FIV infection were identified in Melbourne. A possible relationship between FIV infection status and socioeconomic disadvantage was discovered, based on three government indices of socioeconomic status (p < 0.001). Until longitudinal field studies are performed in Australia to further investigate the long-term effects of natural FIV infection, Australian veterinarians should consider FIV to be an important infection of pet cats, and recommend measures to prevent FIV infection.
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Rolph KE, Cavanaugh RP. Infectious Causes of Neoplasia in the Domestic Cat. Vet Sci 2022; 9:vetsci9090467. [PMID: 36136683 PMCID: PMC9506438 DOI: 10.3390/vetsci9090467] [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: 07/01/2022] [Revised: 08/28/2022] [Accepted: 08/28/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Increasingly, cancers are being linked to infections with viruses, bacteria, and parasites in human medicine. This review summarises the current literature regarding neoplasia occurring in association with infectious diseases in domestic cats. To date, most studies have focused on the role of viruses, especially feline leukaemia virus and feline immunodeficiency virus in association with lymphoma, or the role of papillomavirus in cutaneous and oral neoplasms in cats. Recently, there has been a focus on a potential role of mouse mammary tumour virus in feline mammary carcinoma and lymphoma and studies assessing the potential role of gammaherpes virus and hepadnaviruses in feline neoplasia. Additionally, there has been some focus on potential bacterial and parasitic associations with neoplasia; including reports assessing potential associations between Helicobacter species and gastrointestinal neoplasms, and case reports of neoplasia in association with Platynosomum fastosum and Opisthorchis viverrini. Abstract In recent years, growing attention has been paid to the influence/role of infectious diseases in tumour development and progression. Investigations have demonstrated that some infectious organisms can have a direct role in the development of neoplasia, whereas others can predispose to neoplasia by alterations in the immune response, or by creating a pro-inflammatory environment. Feline leukaemia virus was one of the first infectious agents recognised as an oncogenic organism, and along with feline immunodeficiency virus has received the most attention. Since the discovery of this retrovirus, several other organisms have been associated with neoplastic processes in cats, these include gammaherpes virus, mouse mammary tumour virus, papillomaviruses, hepadnavirus, Helicobacter species, and the parasitic infections Platynosomum fastosum and Opisthorchis viverrini. This review summarises the findings to date.
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Molina VM, Morales J, Gutiérrez MF. Sarcoma felino posvacunal (FISS), reporte de caso en Colombia. REVISTA DE LA FACULTAD DE MEDICINA VETERINARIA Y DE ZOOTECNIA 2022. [DOI: 10.15446/rfmvz.v69n2.103266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
El sarcoma felino posvacunal o sarcoma de sitio de inyección (FISS) en una neoplasia poco descrita en felinos en Colombia, se presenta posterior al uso de vacunas inactivas con adyuvante. El objetivo fue describir la presencia de un sarcoma felino posterior a la vacunación con leucemia felina virus inactivo, primer caso documentado en Colombia. Un felino, macho, mestizo, de 7 años de edad, esterilizado, vacunado con leucemia felina inactiva desde hace 3 años, desarrolla un nódulo de 5 cm de diámetro en la región dorsal, firme y no doloroso. En dermis profunda y músculo estriado, se evidencia proliferación neoplásica de células fusiformes, de crecimiento principalmente expansivo y en menor medida invasivo, que se organiza y forma haces cortos y fascículos largos que se entrecruzan, con focos densos y laxos y en focos se dispone en un patrón de espina de pescado. Las células presentan morfología fusiforme, ligeramente ovoide, irregular, algunas redondeadas, con citoplasma eosinófilo tenue e intenso en otros focos más densos. Se evidencia pleomorfismo celular y anisocitosis moderadas. Los núcleos presentan morfología redonda, ovoide e irregular. Se evidencia la presencia de uno o más nucléolos en algunas de sus células, cromatina principalmente granular fina, pleomorfismo nuclear y anisocariosis moderada. Se contabilizaron 4 mitosis en 10 campos con el objetivo de alto poder en 2,37 mm2, no se observa aparente invasión linfovascular, se evidencia compromiso de bordes laterales. Adicionalmente, discretos focos de necrosis multifocal < 50%, infiltrado inflamatorio mixto polimorfonuclear, neutrófilos moderados multifocales e infiltrado mononuclear linfocítico multifocal.
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Meepoo W, Jaroensong T, Pruksakorn C, Rattanasrisomporn J. Investigation of Bacterial Isolations and Antimicrobial Susceptibility of Chronic Rhinitis in Cats. Animals (Basel) 2022; 12:ani12121572. [PMID: 35739908 PMCID: PMC9219427 DOI: 10.3390/ani12121572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 12/22/2022] Open
Abstract
Chronic rhinitis is a quite common upper respiratory tract (URT) disease in cats. As a result of unclear etiology, frequently, multidrug-resistant bacteria are identified. This study investigated bacterial isolations and an antimicrobial susceptibility test (AST) in chronic rhinitis in cats. The medical records of 395 cats with chronic URT signs were reviewed at the Kasetsart University Veterinary Teaching Hospital (KUVTH) between 2016 and 2021 to survey the underlying causes of URT. Then, apart from rhinitis, other causes were excluded to identify the bacterial species and antimicrobial susceptibility. The results indicated that the most frequent finding was neoplasia, followed by rhinitis and anatomical defects. Furthermore, the only significant association was between the age range and disease group, with gender, FIV, or FeLV infection not being significant. Rhinitis was 4.7 times more likely to occur than neoplasia in younger and young adult cats in the age range < 1−3 years compared to the group > 10 years. The main bacterial species was the Pseudomonas species. Antimicrobials with a susceptibility rate of more than 90% were amikacin, gentamicin, ciprofloxacin, norfloxacin, marbofloxacin, imipenem, and meropenem. In conclusion, rhinitis was the second most common chronic URT disease in cats and was more common in younger and young adult cats. The predominant bacteria with AST in this study reflect the antimicrobial resistance situation. Thus, antimicrobial usage should follow antimicrobial use guidelines first.
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Affiliation(s)
- Wannisa Meepoo
- Kasetsart University Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Kamphaeng Saen Campus, Kasetsart University, Nakhon Pathom 73140, Thailand;
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, 50 Ngamwongwan Rd., Bangkok 10900, Thailand;
| | - Tassanee Jaroensong
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, 50 Ngamwongwan Rd., Bangkok 10900, Thailand;
| | - Chantima Pruksakorn
- Department of Veterinary Microbiology and Immunology, Faculty of Veterinary Medicine, Kasetsart University, 50 Ngamwongwan Rd., Bangkok 10900, Thailand
- Correspondence: (C.P.); (J.R.)
| | - Jatuporn Rattanasrisomporn
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, 50 Ngamwongwan Rd., Bangkok 10900, Thailand;
- Faculty of Veterinary Medicine, Kasetsart University Veterinary Teaching Hospital, 50 Ngamwongwan Rd., Bangkok 10900, Thailand
- Center for Advanced Studies for Agriculture and Food, Kasetsart University Institute for Advanced Studies, Kasetsart University, Bangkok 10900, Thailand
- Correspondence: (C.P.); (J.R.)
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Zaccone R, Renzi A, Chalfon C, Lenzi J, Bellei E, Marconato L, Ros E, Rigillo A, Bettini G, Faroni E, Guerra D, Sabattini S. Environmental risk factors for the development of oral squamous cell carcinoma in cats. J Vet Intern Med 2022; 36:1398-1408. [PMID: 35633064 PMCID: PMC9308430 DOI: 10.1111/jvim.16372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/17/2022] [Accepted: 01/19/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Risk factors for oral squamous cell carcinoma (OSCC) in cats are derived from a single study dated almost 20 years ago. The relationship between inflammation of oral tissues and OSCC is still unclear. OBJECTIVES To investigate previously proposed and novel potential risk factors for OSCC development, including oral inflammatory diseases. ANIMALS Hundred cats with OSCC, 70 cats with chronic gingivostomatitis (CGS), 63 cats with periodontal disease (PD), and 500 controls. METHODS Prospective, observational case-control study. Cats with OSCC were compared with an age-matched control sample of client-owned cats and cats with CGS or PD. Owners of cats completed an anonymous questionnaire including demographic, environmental and lifestyle information. RESULTS On multivariable logistic regression, covariates significantly associated with an increased risk of OSCC were rural environment (OR: 1.77; 95% CI: 1.03-3.04; P = .04), outdoor access (OR: 1.68; 95% CI: 1.07-2.63; P = .02), environmental tobacco smoke (OR: 1.77; 95% CI: 1.05-3; P = .03), and petfood containing chemical additives (OR: 1.98; 95% CI: 1.04-3.76; P = .04). Risk factors shared with CGS and PD were outdoor access and petfood containing chemical additives, respectively. A history of oral inflammation was reported in 35% of cats with OSCC but did not emerge as a risk factor. CONCLUSIONS AND CLINICAL IMPORTANCE The study proposes novel potential risk factors for OSCC in cats. Although a history of inflammatory oral disease was not significantly more frequent compared with random age-matched controls, OSCC shared several risk factors with CGS and PD.
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Affiliation(s)
- Riccardo Zaccone
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Andrea Renzi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Carmit Chalfon
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Jacopo Lenzi
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Emma Bellei
- I Portoni Rossi Veterinary Hospital, Bologna, Italy
| | - Laura Marconato
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | | | - Antonella Rigillo
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Giuliano Bettini
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Eugenio Faroni
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Dina Guerra
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Silvia Sabattini
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
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Thammasiri N, Thanaboonnipat C, Choisunirachon N, Darawiroj D. Multi-factorial considerations for intra-thoracic lymph node evaluations of healthy cats on computed tomographic images. BMC Vet Res 2021; 17:59. [PMID: 33509167 PMCID: PMC7844987 DOI: 10.1186/s12917-021-02771-7] [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: 03/09/2020] [Accepted: 01/19/2021] [Indexed: 12/23/2022] Open
Abstract
Background It is difficult to examine mild to moderate feline intra-thoracic lymphadenopathy via and thoracic radiography. Despite previous information from computed tomographic (CT) images of intra-thoracic lymph nodes, some factors from animals and CT setting were less elucidated. Therefore, this study aimed to investigate the effect of internal factors from animals and external factors from the CT procedure on the feasibility to detect the intra-thoracic lymph nodes. Twenty-four, client-owned, clinically healthy cats were categorized into three groups according to age. They underwent pre- and post-contrast enhanced CT for whole thorax followed by inter-group evaluation and comparison of sternal, cranial mediastinal, and tracheobronchial lymph nodes. Results Post contrast-enhanced CT appearances revealed that intra-thoracic lymph nodes of kittens were invisible, whereas the sternal, cranial mediastinal, and tracheobronchial nodes of cats aged over 7 months old were detected (6/24, 9/24 and 7/24, respectively). Maximum width of these lymph nodes were 3.93 ± 0.74 mm, 4.02 ± 0.65 mm, and 3.51 ± 0.62 mm, respectively. By age, lymph node sizes of these cats were not significantly different. Transverse lymph node width of males was larger than that of females (P = 0.0425). Besides, the detection score of lymph nodes was affected by slice thickness (P < 0.01) and lymph node width (P = 0.0049). Furthermore, an irregular, soft tissue structure, possibly the thymus, was detected in all juvenile cats and three mature cats. Conclusions Despite additional information on intra-thoracic lymph nodes in CT images, which can be used to investigate lymphatic-related abnormalities, age, sex, and slice thickness of CT images must be also considered.
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Affiliation(s)
- Ninlawan Thammasiri
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Chutimon Thanaboonnipat
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Nan Choisunirachon
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Damri Darawiroj
- Department of Anatomy, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand.
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Seetaha S, Ratanabunyong S, Tabtimmai L, Choowongkomon K, Rattanasrisomporn J, Choengpanya K. Anti-feline immunodeficiency virus reverse transcriptase properties of some medicinal and edible mushrooms. Vet World 2020; 13:1798-1806. [PMID: 33132590 PMCID: PMC7566271 DOI: 10.14202/vetworld.2020.1798-1806] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/06/2020] [Indexed: 01/27/2023] Open
Abstract
Background and Aim Feline immunodeficiency virus (FIV) causes AIDS-like symptoms in domestic and wild cats. Treatment of infected cats has been performed using human anti-HIV drugs, which showed some limitations. This study aimed to determine the anti-FIV potential of some mushrooms. Materials and Methods A total of 17 medicinal and edible mushrooms were screened to find their inhibitory effect against FIV reverse transcriptase (FIV-RT). Three solvents, water, ethanol, and hexane, were used to prepare crude mushroom extracts. Fluorescence spectroscopy was used to perform relative inhibition and 50% inhibitory concentrations (IC50) studies. Results The ethanol extract from dried fruiting bodies of Inonotus obliquus showed the strongest inhibition with an IC50 value of 0.80±0.16 μg/mL. The hexane extract from dried mycelium of I. obliquus and ethanol and water extracts from fresh fruit bodies of Phellinus igniarius also exhibited strong activities with the IC50 values of 1.22±0.20, 4.33±0.39, and 6.24±1.42 μg/mL, respectively. The ethanol extract from fresh fruiting bodies of Cordyceps sinensis, hexane extracts from dried mycelium of I. obliquus, ethanol extracts of Ganoderma lucidum, hexane extracts of fresh fruiting bodies of Morchella esculenta, and fresh fruiting bodies of C. sinensis showed moderate anti-FIV-RT activities with IC50 values of 29.73±12.39, 49.97±11.86, 65.37±14.14, 77.59±8.31, and 81.41±17.10 μg/mL, respectively. These mushroom extracts show anti-FIV potential. Conclusion The extracts from I. obliquus, P. igniarius, C. sinensis, and M. esculenta showed potential anti-FIV activity.
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Affiliation(s)
- Supaphorn Seetaha
- Center for Advanced Studies for Agriculture and Food, Institute for Advanced Studies, Kasetsart University, Bangkok 10900, Thailand.,Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Siriluk Ratanabunyong
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.,Interdisciplinary Graduate Program in Bioscience, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Lueacha Tabtimmai
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Kiattawee Choowongkomon
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Jatuporn Rattanasrisomporn
- Center for Advanced Studies for Agriculture and Food, Institute for Advanced Studies, Kasetsart University, Bangkok 10900, Thailand.,Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
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Suspected Radiation-Induced Osteosarcoma in a Domestic Shorthair Cat. Case Rep Vet Med 2020; 2020:1874342. [PMID: 31976121 PMCID: PMC6961608 DOI: 10.1155/2020/1874342] [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: 07/13/2019] [Accepted: 10/17/2019] [Indexed: 11/17/2022] Open
Abstract
A 3-year-old, male neutered domestic shorthair cat, presented for acute onset tail paresis. He was diagnosed with a spindle cell tumour at the level of L7-CD1 and treated with course fractionation radiation therapy. Three years following radiation therapy, the cat developed chondroblastic osteosarcoma of the pelvis, suspected to be secondary to radiation therapy. Hemipelvectomy was performed and the cat was treated with radiation therapy for remaining gross disease. The cat was euthanized 127 days post-operatively due to suspected metastatic disease. Development of radiation-induced tumours should be considered as a rare late complication in cats undergoing radiation therapy.
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Cristo TG, Biezus G, Noronha LF, Gaspar T, Dal Pont TP, Withoeft JA, Furlan LV, Costa LS, Traverso SD, Casagrande RA. Feline Leukaemia Virus Associated with Leukaemia in Cats in Santa Catarina, Brazil. J Comp Pathol 2019; 170:10-21. [PMID: 31375152 DOI: 10.1016/j.jcpa.2019.05.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/29/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023]
Abstract
Leukaemia is a haemopoietic neoplasm originating from myeloid or lymphoid precursors in the bone marrow and may be either acute or chronic. These tumours are rare, but occur more frequently in cats because of an association with the feline leukaemia virus (FeLV) and feline immunodeficiency virus (FIV). To the best of our knowledge, no studies conducted in Brazil to date have analysed the association between leukaemia and FeLV and FIV infection in cats. The aim of this study was to perform a histopathological analysis of feline leukaemia and evaluate the association between leukaemia and FeLV and FIV infection in cats. The study evaluated 37 cats with leukaemia diagnosed between 2009 and 2017. The animals underwent necropsy examination, histopathology and immunohistochemistry with anti-FeLV gp70 and anti-FIV p24 gag antibodies. Of the evaluated animals, 54% (20/37) were males and 43.2% (16/37) were females. With respect to the life stage of the animals, 24.3% (9/37) were junior, 32.4% (12/37) were prime, 18.9% (7/37) were mature and 10.8% (4/37) were senior, and five animals were of unknown age. Myeloid leukaemia occurred in 56.8% (21/37) of the cases and lymphocytic leukaemia occurred in 43.2% (16/37) of the cases. Acute leukaemia (73%, 27/37) was more common than chronic leukaemia (27%, 10/37). The positivity for FeLV (78.4%, 29/37) and FIV (16.2%, 6/37) indicated a high association between FeLV infection and tumour development in the study region.
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Affiliation(s)
- T G Cristo
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Postgraduate Programme in Animal Science, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - G Biezus
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Postgraduate Programme in Animal Science, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - L F Noronha
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Veterinary Medicine, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - T Gaspar
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Veterinary Medicine, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - T P Dal Pont
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Veterinary Medicine, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - J A Withoeft
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Veterinary Medicine, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - L V Furlan
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Veterinary Medicine, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - L S Costa
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Veterinary Medicine, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - S D Traverso
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil
| | - R A Casagrande
- Laboratory of Animal Pathology, Agroveterinary Sciences Center, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil; Postgraduate Programme in Animal Science, University of Santa Catarina State, Av. Luís de Camões 2090, Conta Dinheiro, Lages, Santa Catarina, Brazil.
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Sepp T, Ujvari B, Ewald PW, Thomas F, Giraudeau M. Urban environment and cancer in wildlife: available evidence and future research avenues. Proc Biol Sci 2019; 286:20182434. [PMID: 30963883 PMCID: PMC6367167 DOI: 10.1098/rspb.2018.2434] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/10/2018] [Indexed: 12/23/2022] Open
Abstract
While it is generally known that the risk of several cancers in humans is higher in urban areas compared with rural areas, cancer is often deemed a problem of human societies with modern lifestyles. At the same time, more and more wild animals are affected by urbanization processes and are faced with the need to adapt or acclimate to urban conditions. These include, among other things, increased exposure to an assortment of pollutants (e.g. chemicals, light and noise), novel types of food and new infections. According to the abundant literature available for humans, all of these factors are associated with an increased probability of developing cancerous neoplasias; however, the link between the urban environment and cancer in wildlife has not been discussed in the scientific literature. Here, we describe the available evidence linking environmental changes resulting from urbanization to cancer-related physiological changes in wild animals. We identify the knowledge gaps in this field and suggest future research avenues, with the ultimate aim of understanding how our modern lifestyle affects cancer prevalence in urbanizing wild populations. In addition, we consider the possibilities of using urban wild animal populations as models to study the association between environmental factors and cancer epidemics in humans, as well as to understand the evolution of cancer and defence mechanisms against it.
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Affiliation(s)
- Tuul Sepp
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
| | - Beata Ujvari
- School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, VIC, Australia
| | - Paul W. Ewald
- Department of Biology, University of Louisville, Louisville, KY 40292, USA
| | - Frédéric Thomas
- CREEC, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
- MIVEGEC, UMR IRD/CNRS/UM 5290, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
| | - Mathieu Giraudeau
- CREEC, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
- MIVEGEC, UMR IRD/CNRS/UM 5290, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
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15
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Simmons GS, Habarugira G. The Origins of Gibbon Ape Leukaemia Virus. Primates 2018. [DOI: 10.5772/intechopen.71694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Murphy BG, Eckstrand C, Castillo D, Poon A, Liepnieks M, Harmon K, Moore P. Multiple, Independent T Cell Lymphomas Arising in an Experimentally FIV-Infected Cat during the Terminal Stage of Infection. Viruses 2018; 10:v10060280. [PMID: 29794987 PMCID: PMC6024646 DOI: 10.3390/v10060280] [Citation(s) in RCA: 5] [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: 04/12/2018] [Revised: 05/16/2018] [Accepted: 05/22/2018] [Indexed: 12/21/2022] Open
Abstract
Our laboratory has serially reported on the virologic and immunopathologic features of a cohort of experimental feline immunodeficiency virus (FIV)-infected cats for more than eight years. At 8.09 years post infection (PI), one of these animals entered the terminal stage of infection, characterized by undulating hyperthermia, progressive anorexia, weight loss, and pancytopenia; the animal was not responsive to therapeutic interventions, necessitating euthanasia six weeks later (8.20 years PI). Subsequent analyses indicated that neoplastic lymphocytes infiltrated multiple cervical lymph nodes and a band-like region of the mucosal lamina propria within a segment of the intestine. Immunohistochemistry and T cell clonality testing determined that the nodal and intestinal lesions were independently arising from CD3 T cell lymphomas. In-situ RNA hybridization studies indicated that diffuse neoplastic lymphocytes from the cervical lymph node contained abundant viral nucleic acid, while viral nucleic acid was not detectable in lymphocytes from the intestinal lymphoma lesion. The proviral long terminal repeat (LTR) was amplified and sequenced from multiple anatomic sites, and a common clone containing a single nucleotide polymorphism was determined to be defective in response to phorbol myristate acetate (PMA)-mediated promoter activation in a reporter gene assay. This assay revealed a previously unidentified PMA response element within the FIV U3 region 3’ to the TATA box. The possible implications of these results on FIV-lymphoma pathogenesis are discussed.
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Affiliation(s)
- Brian G Murphy
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616-5270, USA.
| | - Christina Eckstrand
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA 99163, USA.
| | - Diego Castillo
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616-5270, USA.
| | - Andre Poon
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616-5270, USA.
| | - Molly Liepnieks
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616-5270, USA.
| | - Kristy Harmon
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616-5270, USA.
| | - Peter Moore
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616-5270, USA.
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Nag M, De Paris K, E Fogle J. Epigenetic Modulation of CD8⁺ T Cell Function in Lentivirus Infections: A Review. Viruses 2018; 10:v10050227. [PMID: 29710792 PMCID: PMC5977220 DOI: 10.3390/v10050227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 01/16/2023] Open
Abstract
CD8+ T cells are critical for controlling viremia during human immunodeficiency virus (HIV) infection. These cells produce cytolytic factors and antiviral cytokines that eliminate virally- infected cells. During the chronic phase of HIV infection, CD8+ T cells progressively lose their proliferative capacity and antiviral functions. These dysfunctional cells are unable to clear the productively infected and reactivated cells, representing a roadblock in HIV cure. Therefore, mechanisms to understand CD8+ T cell dysfunction and strategies to boost CD8+ T cell function need to be investigated. Using the feline immunodeficiency virus (FIV) model for lentiviral persistence, we have demonstrated that CD8+ T cells exhibit epigenetic changes such as DNA demethylation during the course of infection as compared to uninfected cats. We have also demonstrated that lentivirus-activated CD4+CD25+ T regulatory cells induce forkhead box P3 (Foxp3) expression in virus-specific CD8+ T cell targets, which binds the interleukin (IL)-2, tumor necrosis factor (TNF)-α, and interferon (IFN)-γ promoters in these CD8+ T cells. Finally, we have reported that epigenetic modulation reduces Foxp3 binding to these promoter regions. This review compares and contrasts our current understanding of CD8+ T cell epigenetics and mechanisms of lymphocyte suppression during the course of lentiviral infection for two animal models, FIV and simian immunodeficiency virus (SIV).
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Affiliation(s)
- Mukta Nag
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA.
| | - Kristina De Paris
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
| | - Jonathan E Fogle
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA.
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Kaye S, Wang W, Miller C, McLuckie A, Beatty JA, Grant CK, VandeWoude S, Bielefeldt-Ohmann H. Role of Feline Immunodeficiency Virus in Lymphomagenesis--Going Alone or Colluding? ILAR J 2017; 57:24-33. [PMID: 27034392 DOI: 10.1093/ilar/ilv047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Feline immunodeficiency virus (FIV) is a naturally occurring lentivirus of domestic and nondomestic feline species. Infection in domestic cats leads to immune dysfunction via mechanisms similar to those caused by human immunodeficiency virus (HIV) and, as such, is a valuable natural animal model for acquired immunodeficiency syndrome (AIDS) in humans. An association between FIV and an increased incidence of neoplasia has long been recognized, with frequencies of up to 20% in FIV-positive cats recorded in some studies. This is similar to the rate of neoplasia seen in HIV-positive individuals, and in both species neoplasia typically requires several years to arise. The most frequently reported type of neoplasia associated with FIV infection is lymphoma. Here we review the possible mechanisms involved in FIV lymphomagenesis, including the possible involvement of coinfections, notably those with gamma-herpesviruses.
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Affiliation(s)
- Sarah Kaye
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
| | - Wenqi Wang
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
| | - Craig Miller
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
| | - Alicia McLuckie
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
| | - Julia A Beatty
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
| | - Chris K Grant
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
| | - Sue VandeWoude
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
| | - Helle Bielefeldt-Ohmann
- Sarah Kaye, BVSc, is a small animal clinician with the Animal Welfare League Qld Inc. in The Gold Coast, Queensland, Australia. Wenqi Wang, BVSc, PhD, is a postdoctoral fellow affiliated with the School of Veterinary Science at University of Queensland at Gatton in Australia. Craig Miller, DVM, is a postdoctoral fellow in the Department of Microbiology, Immunology & Pathology at Colorado State University in FortCollins, Colorado. Alicia McLuckie, BVSc, is a PhD candidate in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia, Julia A. Beatty, BSc, BVetMed, PhD, FANZCVs (feline med), is a professor in the Faculty of Veterinary Science at the University of Sydney in NSW, Australia. Chris K. Grant, PhD, DSc, is founder and CEO of Custom Monoclonals International Corp. in West Sacramento, California. Sue VandeWoude, DVM, MS, DACLAM, is a professor in the Department of Microbiology, Immunology & Pathology at Colorado State University and Associate Dean for Research in the College of Veterinary & Biomedical Sciences at Colorado State University in Fort Collins, Colorado. Helle Bielefeldt-Ohmann, DVM, PhD, is a senior lecturer in the School of Veterinary Science at the University of Queensland at Gatton, an affiliate senior lecturer in the School of Chemistry & Molecular Biosciences at the University of Queensland at St. Lucia, and an investigator at the Australian Infectious Diseases Research Centre at the University of Queensland in St. Lucia, Australia
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Taffin ER, Paepe D, Ghys LF, De Roover K, Van de Maele I, Saunders JH, Duchateau L, Daminet S. Systolic blood pressure, routine kidney variables and renal ultrasonographic findings in cats naturally infected with feline immunodeficiency virus. J Feline Med Surg 2016; 19:672-679. [PMID: 27307141 DOI: 10.1177/1098612x16653165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Objectives Hypertension is a common cause of proteinuria in HIV-infected people. In cats, feline immunodeficiency virus (FIV) infection appears to be associated with proteinuria. Therefore, the results from systolic blood pressure (SBP) measurements in naturally infected FIV-positive cats were reviewed to assess whether hypertension contributes to the observed proteinuria in these cats. Ultrasonographic findings in FIV-positive cats were reviewed to complete renal assessment and to extend the scant knowledge on renal ultrasonography in cats. Methods Data from client-owned, naturally infected FIV-positive cats were retrospectively reviewed. To obtain a control group, records were reviewed from age-matched, privately owned, FIV-negative cats. Results Data from 91 FIV-infected and 113 control cats were compared. FIV-infected cats showed a significantly lower SBP ( P <0.0001) and significantly fewer FIV-infected cats were hypertensive (⩾160 mmHg) compared with control cats ( P = 0.025). The prevalence of renal azotaemia did not significantly differ between groups, although FIV-infected cats had significantly lower urine specific gravity (USG) ( P = 0.0273) and a higher incidence of USG below 1.035 ( P = 0.043). Urinary protein:creatinine ratio (UPC) was significantly higher in FIV-infected cats ( P = 0.0005) and proteinuria (UPC >0.4) occurred more frequently in FIV-infected cats ( P <0.001). Renal ultrasonography showed abnormalities in 60/91 FIV-infected cats, with hyperechogenic cortices in 39/91 and enlarged kidneys in 31/91. Conclusions and relevance Hypertension can be excluded as a common cause of renal damage leading to proteinuria in FIV-infected cats. Proteinuria and poorly concentrated urine are common in naturally infected FIV-positive cats, in contrast to azotaemia. Clinicians should cautiously interpret ultrasonographic abnormalities as these occur in over half of FIV-infected cats.
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Affiliation(s)
- Elien Rl Taffin
- 1 Department of Small Animal Medicine and Clinical Biology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Dominique Paepe
- 1 Department of Small Animal Medicine and Clinical Biology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Liesbeth Fe Ghys
- 1 Department of Small Animal Medicine and Clinical Biology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Katrien De Roover
- 1 Department of Small Animal Medicine and Clinical Biology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Isabel Van de Maele
- 1 Department of Small Animal Medicine and Clinical Biology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Jimmy H Saunders
- 2 Department of Medical Imaging of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Luc Duchateau
- 3 Department of Comparative Physiology and Biometrics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Sylvie Daminet
- 1 Department of Small Animal Medicine and Clinical Biology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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20
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Ewald PW, Swain Ewald HA. Infection and cancer in multicellular organisms. Philos Trans R Soc Lond B Biol Sci 2016; 370:rstb.2014.0224. [PMID: 26056368 DOI: 10.1098/rstb.2014.0224] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Evolutionary considerations suggest that oncogenic infections should be pervasive among animal species. Infection-associated cancers are well documented in humans and domestic animals, less commonly reported in undomesticated captive animals, and rarely documented in nature. In this paper, we review the literature associating infectious agents with cancer to evaluate the reasons for this pattern. Non-malignant infectious neoplasms occur pervasively in multicellular life, but oncogenic progression to malignancy is often uncertain. Evidence from humans and domestic animals shows that non-malignant infectious neoplasms can develop into cancer, although generally with low frequency. Malignant neoplasms could be difficult to find in nature because of a low frequency of oncogenic transformation, short survival after malignancy and reduced survival prior to malignancy. Moreover, the evaluation of malignancy can be ambiguous in nature, because criteria for malignancy may be difficult to apply consistently across species. The information available in the literature therefore does not allow for a definitive assessment of the pervasiveness of infectious cancers in nature, but the presence of infectious neoplasias and knowledge about the progression of benign neoplasias to cancer is consistent with a widespread but largely undetected occurrence.
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Affiliation(s)
- Paul W Ewald
- Department of Biology, University of Louisville, Louisville, KY 40292, USA
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21
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Malmberg JL, Garcia T, Dubielzig RR, Ehrhart EJ. Canine and feline retinal lymphoma: a retrospective review of 12 cases. Vet Ophthalmol 2016; 20:73-78. [DOI: 10.1111/vop.12356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Jennifer L. Malmberg
- Department of Microbiology, Immunology, and Pathology; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; Fort Collins CO USA
| | - Teresa Garcia
- Department of Microbiology, Immunology, and Pathology; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; Fort Collins CO USA
| | - Richard R. Dubielzig
- Department of Pathobiological Sciences; University of Wisconsin School of Veterinary Medicine; Madison WI USA
| | - E. J. Ehrhart
- Department of Microbiology, Immunology, and Pathology; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; Fort Collins CO USA
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22
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Ertl R, Korb M, Langbein-Detsch I, Klein D. Prevalence and risk factors of gammaherpesvirus infection in domestic cats in Central Europe. Virol J 2015; 12:146. [PMID: 26377918 PMCID: PMC4574186 DOI: 10.1186/s12985-015-0381-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 09/10/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Gammaherpesviruses (GHVs) are a large group of dsDNA viruses that can infect humans and several animal species. The two human GHVs, Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus are known for their oncogenic properties in individuals with immunodeficiency. Recently, the first feline GHV, Felis catus gammaherpesvirus 1 (FcaGHV1) was discovered and frequently found in domestic cats in Australia, Singapore and the USA. FcaGHV1 is more likely to be detected in cats co-infected with the feline immunodeficiency virus (FIV). FINDINGS The prevalence of FcaGHV1 in pet cats from Germany and Austria was 16.2 % (95 % CI = 12.38-20.02). The odds for GHV infection were greater for FIV positive (OR = 4.5), male (OR = 13.32) and older (OR = 2.36) cats. Furthermore, FcaGHV1 viral loads were significantly higher in FIV-infected cats compared to matched controls. CONCLUSIONS GHV infections are common in domestic cats in Central Europe. The worldwide distribution of FcaGHV1 can be assumed. A potential role as a co-factor in FIV-induced pathogeneses is supported.
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Affiliation(s)
- Reinhard Ertl
- VetCore Facility for Research, University of Veterinary Medicine Vienna, Vienna, Austria.
| | - Melanie Korb
- VetCore Facility for Research, University of Veterinary Medicine Vienna, Vienna, Austria.
| | | | - Dieter Klein
- VetCore Facility for Research, University of Veterinary Medicine Vienna, Vienna, Austria.
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23
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Junginger J, Hansmann F, Herder V, Lehmbecker A, Peters M, Beyerbach M, Wohlsein P, Baumgärtner W. Pathology in Captive Wild Felids at German Zoological Gardens. PLoS One 2015; 10:e0130573. [PMID: 26086731 PMCID: PMC4472349 DOI: 10.1371/journal.pone.0130573] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 05/22/2015] [Indexed: 12/30/2022] Open
Abstract
This retrospective study provides an overview on spontaneous diseases occurring in 38 captive wild felids submitted for necropsy by German zoological gardens between 2004 and 2013. Species included 18 tigers, 8 leopards, 7 lions, 3 cheetahs and 2 cougars with an age ranging from 0.5 to 22 years. Renal lesions, predominantly tubular alterations (intra-tubular concrements, tubular degeneration, necrosis, intra-tubular cellular debris, proteinaceous casts, dilated tubuli) followed by interstitial (lympho-plasmacytic inflammation, fibrosis, metastatic-suppurative inflammation, eosinophilic inflammation) and glomerular lesions (glomerulonephritis, glomerulosclerosis, amyloidosis) were detected in 33 out of 38 animals (87%). Tumors were found in 19 of 38 felids (50%) with 12 animals showing more than one neoplasm. The tumor prevalence increased with age. Neoplasms originated from endocrine (11), genital (8), lympho-hematopoietic (5) and alimentary organs (4) as well as the mesothelium (3). Most common neoplasms comprised uterine/ovarian leiomyomas (5/2), thyroid adenomas/adenocarcinoma (5/1), pleural mesotheliomas (3), hemangiosarcomas (2) and glossal papillomas (2). Inflammatory changes were frequently encountered in the intestine and the lung. Two young animals displayed metastatic mineralization suggestive of a vitamin D- or calcium intoxication. One tiger exhibited degenerative white matter changes consistent with an entity termed large felid leukoencephalomyelopathy. Various hyperplastic, degenerative and inflammatory changes with minor clinical significance were found in several organs. Summarized, renal lesions followed by neoplastic changes as well as inflammatory changes in lung and gastrointestinal tract represent the most frequent findings in captive wild felids living in German zoological gardens.
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Affiliation(s)
- Johannes Junginger
- Department of Pathology, University of Veterinary Medicine, Hannover, Lower Saxony, Germany
| | - Florian Hansmann
- Department of Pathology, University of Veterinary Medicine, Hannover, Lower Saxony, Germany
- Center for Systems Neuroscience, Hannover, Lower Saxony, Germany
| | - Vanessa Herder
- Department of Pathology, University of Veterinary Medicine, Hannover, Lower Saxony, Germany
- Center for Systems Neuroscience, Hannover, Lower Saxony, Germany
| | - Annika Lehmbecker
- Department of Pathology, University of Veterinary Medicine, Hannover, Lower Saxony, Germany
- Center for Systems Neuroscience, Hannover, Lower Saxony, Germany
| | - Martin Peters
- Chemisches und Veterinäruntersuchungsamt Westphalia, Arnsberg, North Rhine-Westphalia, Germany
| | - Martin Beyerbach
- Department of Biometry, Epidemiology and Information Processing, University of Veterinary Medicine, Hannover, Lower Saxony, Germany
| | - Peter Wohlsein
- Department of Pathology, University of Veterinary Medicine, Hannover, Lower Saxony, Germany
| | - Wolfgang Baumgärtner
- Department of Pathology, University of Veterinary Medicine, Hannover, Lower Saxony, Germany
- Center for Systems Neuroscience, Hannover, Lower Saxony, Germany
- * E-mail:
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Biology and Diseases of Cats. LABORATORY ANIMAL MEDICINE 2015. [PMCID: PMC7149628 DOI: 10.1016/b978-0-12-409527-4.00013-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Estimating the population attributable fraction for schizophrenia when Toxoplasma gondii is assumed absent in human populations. Prev Vet Med 2014; 117:425-35. [DOI: 10.1016/j.prevetmed.2014.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 09/15/2014] [Accepted: 10/10/2014] [Indexed: 11/17/2022]
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Fujiwara-Igarashi A, Fujimori T, Oka M, Nishimura Y, Hamamoto Y, Kazato Y, Sawada H, Yayoshi N, Hasegawa D, Fujita M. Evaluation of outcomes and radiation complications in 65 cats with nasal tumours treated with palliative hypofractionated radiotherapy. Vet J 2014; 202:455-61. [PMID: 25312719 DOI: 10.1016/j.tvjl.2014.09.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 08/27/2014] [Accepted: 09/09/2014] [Indexed: 10/24/2022]
Abstract
Feline nasal tumours (NTs) are locally invasive and occasionally metastasise to distant sites. Although palliative hypofractionated radiotherapy (HRT) is used, its efficacy and long-term complications have not been adequately evaluated. The purpose of this study was to evaluate the efficacy of HRT in treating feline malignant NTs, including monitoring improvement in clinical signs, acute and late complications, and prognosis. The medical records of 65 cats with malignant NTs treated with HRT were included. Overall survival (OS) and progression-free survival (PFS) were calculated using the Kaplan-Meier method. The log-rank test and Cox proportional hazard model were used to evaluate factors that influenced OS and PFS. Clinical signs improved in 86.2% of cats following radiotherapy. Acute complications were observed in 58.5% of cats but were manageable and acceptable. Among late complications, cataract was most frequently observed (20.5%), and atrophy of the entire eyeball and osteochondroma at the irradiation site were each observed in two cats. The median OS and PFS in 65 cats were 432 days and 229 days, respectively. No significant difference between OS of cats with nasal lymphoma and that of cats with other tumours was observed. Despite some limitations due to the retrospective nature of the study, palliative HRT for feline NTs can be considered a useful treatment option because of the high incidence of improvement and more favourable prognosis, although it may be preferable not to use the hypofractionated regimen in young cats with lymphoma that are expected to survive for a long period.
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Affiliation(s)
- Aki Fujiwara-Igarashi
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan.
| | - Toshiki Fujimori
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Misaki Oka
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Yuri Nishimura
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Yuji Hamamoto
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Yukari Kazato
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Harumi Sawada
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Naoko Yayoshi
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Daisuke Hasegawa
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
| | - Michio Fujita
- Department of Veterinary Radiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-Shi, Tokyo 180-0023, Japan
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Elze J, Grammel L, Richter E, Aupperle H. First description of Mycobacterium heckeshornense infection in a feline immunodeficiency virus-positive cat. J Feline Med Surg 2014; 15:1141-4. [PMID: 23729496 DOI: 10.1177/1098612x13490711] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A 13-year-old cat was presented to the veterinary clinic with poor condition, vomiting and a reduced appetite. A painful abdomen was diagnosed because of tension and defence reactions on palpation. Diagnostic laparotomy showed a thickening of the colon and caecal intestinal wall. Histopathological investigation of intestinal biopsies revealed focal severe granulomatous inflammation with numerous acid-fast bacilli in the tela submucosa. The complete blood count test showed a severe lymphopenia and anaemia, and the cat tested positive for feline immunodeficiency virus (FIV) antibodies by enzyme-linked immunosorbent assay. The cat was euthanased and necropsied. Multifocal granulomatous nodules were present in the intestines, liver and kidneys. The gastric lymph node was markedly enlarged and showed a caseous cut surface. Histopathology revealed a systemic mycobacteriosis affecting intestine, lymph nodes, liver and kidneys. The mycobacterial strain was cultured and determined by its unique 16S rRNA gene sequence as Mycobacterium heckeshornense. This is the first reported case of M heckeshornense in a cat. It was suspected that the disseminated mycobacteriosis was supported by the FIV infection.
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Sykes JE. Feline Immunodeficiency Virus Infection. CANINE AND FELINE INFECTIOUS DISEASES 2014. [PMCID: PMC7152317 DOI: 10.1016/b978-1-4377-0795-3.00021-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ota-Kuroki J, Ragsdale JM, Bawa B, Wakamatsu N, Kuroki K. Intraocular and periocular lymphoma in dogs and cats: a retrospective review of 21 cases (2001-2012). Vet Ophthalmol 2013; 17:389-96. [DOI: 10.1111/vop.12106] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Juri Ota-Kuroki
- Midwest Veterinary Referral Center; 17497 N. Outer 40 Drive Chesterfield MO 63005 USA
| | - John M. Ragsdale
- Veterinary Diagnostic Services; New Mexico Department of Agriculture; New Mexico State University; 1101 Camino de Salud NE Albuquerque NM 87102 USA
| | - Bhupinder Bawa
- Department of Diagnostic Medicine and Pathobiology; Kansas State University; Manhattan KS 66506 USA
| | - Nobuko Wakamatsu
- Department of Pathobiological Sciences; Louisiana State University; Baton Rouge LA 70803 USA
| | - Keiichi Kuroki
- Veterinary Medical Diagnostic Laboratory; University of Missouri; 1600 E. Rollins Columbia MO 65211 USA
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Liem BP, Dhand NK, Pepper AE, Barrs VR, Beatty JA. Clinical findings and survival in cats naturally infected with feline immunodeficiency virus. J Vet Intern Med 2013; 27:798-805. [PMID: 23734699 DOI: 10.1111/jvim.12120] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 03/18/2013] [Accepted: 04/25/2013] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND The clinical course and outcome of natural feline immunodeficiency virus (FIV) infection are variable and incompletely understood. Assigning clinical relevance to FIV infection in individual cats represents a considerable clinical challenge. OBJECTIVE To compare signalment, hematologic and biochemical data, major clinical problem, and survival among client-owned, FIV-infected, and uninfected domestic cats. ANIMALS Client-owned, domestic cats tested for FIV (n = 520). METHODS Retrospective, case control study. Logistic regression analyses were conducted to identify risk factors for FIV infection and to compare hematologic and biochemical data between cases and controls, after adjusting for potential confounders. Survival times were compared using Kaplan-Meier curves. RESULTS The prevalence of FIV infection was 14.6%. Mixed breed, male sex, and older age were risk factors for FIV infection. Hematologic abnormalities, biochemical abnormalities or both were common in both FIV-infected and uninfected cats. Lymphoid malignancies were slightly more common in FIV-infected than uninfected cats. Survival of FIV-infected cats was not significantly different from that of uninfected cats. CONCLUSIONS AND CLINICAL IMPORTANCE Multiple hematologic and biochemical abnormalities are common in old, sick cats regardless of their FIV status. Their presence should not be assumed to indicate clinical progression of FIV infection. A negative effect of FIV on survival was not apparent in this study.
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Affiliation(s)
- B P Liem
- Valentine Charlton Cat Centre, University of Sydney, Sydney, NSW, Australia
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31
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Magden E, Miller C, MacMillan M, Bielefeldt-Ohmann H, Avery A, Quackenbush SL, Vandewoude S. Acute virulent infection with feline immunodeficiency virus (FIV) results in lymphomagenesis via an indirect mechanism. Virology 2013; 436:284-94. [PMID: 23290868 DOI: 10.1016/j.virol.2012.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 10/30/2012] [Accepted: 12/04/2012] [Indexed: 10/27/2022]
Abstract
Four cats (24%) experimentally infected with FIV unexpectedly developed neoplastic changes within four months of inoculation. While FIV has previously been associated with neoplasia, the rapidity and high attack rate seen here is highly unusual. PCR for antigen receptor rearrangements (PARR) detected clonally rearranged T cells in two animals diagnosed with B cell follicular lymphoma by classical means. All cats were negative for feline leukemia virus; gamma-herpesvirus DNA was not amplified using degenerate primers. FIV proviral load in neoplastic tissue was two orders of magnitude lower than in the periphery, lower in neoplastic vs non-neoplastic lymph node, and clonal integration was not detected. We hypothesize that neoplasia was secondary to FIV immune dysregulation, and show that PARR can augment our capacity to phenotype these tumors and distinguish follicular hyperplasia from lymphoma. Age of exposure and relative virulence of the inoculum likely contributed to this unusual presentation of FIV infection.
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