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Faro TAS, de Oliveira EHC. Canine transmissible venereal tumor - From general to molecular characteristics: A review. Anim Genet 2023; 54:82-89. [PMID: 36259378 DOI: 10.1111/age.13260] [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: 05/23/2022] [Revised: 08/07/2022] [Accepted: 08/23/2022] [Indexed: 01/07/2023]
Abstract
Cancer is a group of complex diseases resulting from the accumulation of genetic and epigenetic changes affecting control and activity of several genes, especially those involved in cell differentiation and growth processes, leading to an abnormal proliferation. When the disease reaches an advanced stage, cancer can lead to metastasis in other organs. Interestingly, recent studies have shown that some types of cancer spread not only through the body, but also can be transmitted among individuals. Therefore, these cancers are known as transmissible tumors. Among the three types of transmissible tumors that occur in nature, the canine transmissible venereal tumor (CTVT) is known as the oldest cancer in the world, since it was originated from a single individual 11 000 years ago. The disease has a worldwide distribution, and its occurrence has been documented since 1810. The CTVT presents three types of cytomorphological classification: lymphocytoid type, mixed type, and plasmacytoid type, the latter being chemoresistant due to overexpression of the ABCB1 gene, and consequently increase of the P-glycoprotein. More knowledge about the epidemiology and evolution of CTVT may help to elucidate the pathway and form of the global spread of the disease.
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Affiliation(s)
- Thamirys A S Faro
- Programa de Pós Graduação em Genética e Biologia Molecular, Universidade Federal do Pará, Belém, Pará, Brazil
- Laboratório de Citogenômica e Mutagênese Ambiental, SEAMB, Instituto Evandro Chagas Ananindeua, Belém, Pará, Brazil
| | - Edivaldo H C de Oliveira
- Programa de Pós Graduação em Genética e Biologia Molecular, Universidade Federal do Pará, Belém, Pará, Brazil
- Laboratório de Citogenômica e Mutagênese Ambiental, SEAMB, Instituto Evandro Chagas Ananindeua, Belém, Pará, Brazil
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Setthawongsin C, Techangamsuwan S, Rungsipipat A. Canine Transmissible Venereal Tumor: An Infectious Neoplasia in Dogs. Vet Med Sci 2022. [DOI: 10.5772/intechopen.106150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Canine transmissible venereal tumor is the oldest cancer in dogs and is transplanted via viable cancer cells. This cancer has a specific host, easy transmission, noticeable gross lesions, a predictable growth pattern, an immunologic relative host response, unique molecular characteristics, and is responsive to chemotherapeutic treatment. These points make researchers and practitioners interested in this cancer. Genital cases are noticeable and therefore easier to diagnose and treat than extragenital cases. By contrasting the anatomical features of the two types of cases, we highlight the uniqueness of canine transmissible venereal tumors and discuss the diagnosis, treatment, and prevention of this ancient cancer.
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3
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do Prado Duzanski A, Flórez LMM, Fêo HB, Romagnoli GG, Kaneno R, Rocha NS. Cell-mediated immunity and expression of MHC class I and class II molecules in dogs naturally infected by canine transmissible venereal tumor: Is there complete spontaneous regression outside the experimental CTVT? Res Vet Sci 2022; 145:193-204. [DOI: 10.1016/j.rvsc.2022.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 12/21/2021] [Accepted: 02/18/2022] [Indexed: 10/19/2022]
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Ke CH, Tomiyasu H, Lin YL, Huang WH, Huang HH, Chiang HC, Lin CS. Canine transmissible venereal tumour established in immunodeficient mice reprograms the gene expression profiles associated with a favourable tumour microenvironment to enable cancer malignancy. BMC Vet Res 2022; 18:4. [PMID: 34980125 PMCID: PMC8722346 DOI: 10.1186/s12917-021-03093-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/17/2021] [Indexed: 12/03/2022] Open
Abstract
Background Canine transmissible venereal tumours (CTVTs) can cross the major histocompatibility complex barrier to spread among dogs. In addition to the transmissibility within canids, CTVTs are also known as a suitable model for investigating the tumour–host immunity interaction because dogs live with humans and experience the same environmental risk factors for tumourigenesis. Moreover, outbred dogs are more appropriate than inbred mice models for simulating the diversity of human cancer development. This study built a new model of CTVTs, known as MCTVTs, to further probe the shaping effects of immune stress on tumour development. For xenotransplantation, CTVTs were first injected and developed in immunodeficient mice (NOD.CB17-Prkdcscid/NcrCrl), defined as XCTVTs. The XCTVTs harvested from NOD/SCID mice were then inoculated and grown in beagles and named mouse xenotransplantation of CTVTs (MCTVTs). Results After the inoculation of CTVTs and MCTVTs into immune-competent beagle dogs separately, MCTVTs grew faster and metastasized more frequently than CTVTs did. Gene expression profiles in CTVTs and MCTVTs were analysed by cDNA microarray to reveal that MCTVTs expressed many tumour-promoting genes involved in chronic inflammation, chemotaxis, extracellular space modification, NF-kappa B pathways, and focal adhesion. Furthermore, several well-known tumour-associated biomarkers which could predict tumour progression were overexpressed in MCTVTs. Conclusions This study demonstrated that defective host immunity can result in gene instability and enable transcriptome reprogramming within tumour cells. Fast tumour growth in beagle dogs and overexpression of tumour-associated biomarkers were found in a CTVT strain previously established in immunodeficient mice. In addition, dysregulated interaction of chronic inflammation, chemotaxis, and extracellular space modification were revealed to imply the possibly exacerbating mechanisms in the microenvironments of these tumours. In summary, this study offers a potential method to facilitate tumour progression and provide a niche for discovering tumour-associated biomarkers in cancer research. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-03093-4.
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Affiliation(s)
- Chiao-Hsu Ke
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, No. 1 Sec. 4 Roosevelt Rd., 10617, Taipei, Taiwan
| | - Hirotaka Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Yu-Ling Lin
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Wei-Hsiang Huang
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, 10617, Taipei, Taiwan
| | - Hsiao-Hsuan Huang
- Industrial Development Graduate Program of College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu City, 30068, Taiwan
| | | | - Chen-Si Lin
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, No. 1 Sec. 4 Roosevelt Rd., 10617, Taipei, Taiwan.
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5
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Kabuusu RM. Monitoring the incidence of canine transmissible venereal tumours in the UK. Vet Rec 2021; 189:e1316. [PMID: 34918797 DOI: 10.1002/vetr.1316] [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]
Affiliation(s)
- Richard M Kabuusu
- Pathobiology Department, School of Veterinary Medicine, St George's University, Grenada, West Indies
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6
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Von Rueden SK, Fan TM. Cancer-Immunity Cycle and Therapeutic Interventions- Opportunities for Including Pet Dogs With Cancer. Front Oncol 2021; 11:773420. [PMID: 34869014 PMCID: PMC8639699 DOI: 10.3389/fonc.2021.773420] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/01/2021] [Indexed: 12/22/2022] Open
Abstract
The tumor-immune interplay represents a dynamic series of events executed by cellular and soluble participants that either promote or inhibit successful tumor formation and growth. Throughout a tumor’s development and progression, the host organism’s immune system reacts by generating anti-cancer defenses through various incremental and combinatorial mechanisms, and this reactive orchestration is termed the cancer-immunity cycle. Success or failure of the cancer-immunity cycle dictates the fate of both host and tumor as winner or loser. Insights into how the tumor and host immune system continuously adapt to each other throughout the lifecycle of the tumor is necessary to rationally develop new effective immunotherapies. Additionally, the evolving nature of the cancer-immunity cycle necessitates therapeutic agility, requiring real-time serial assessment of immunobiologic markers that permits tailoring of therapies to the everchanging tumor immune microenvironment. In order to accelerate advances in the field of immuno-oncology, this review summarizes the steps comprising the cancer-immunity cycle, and underscores key breakpoints in the cycle that either favor cancer regression or progression, as well as shaping of the tumor microenvironment and associated immune phenotypes. Furthermore, specific large animal models of spontaneous cancers that are deemed immunogenic will be reviewed and proposed as unique resources for validating investigational immunotherapeutic protocols that are informed by the cancer-immunity cycle. Collectively, this review will provide a progressive look into the dynamic interplay between tumor and host immune responses and raise awareness for how large animal models can be included for developing combinatorial and sequenced immunotherapies to maximizing favorable treatment outcomes.
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Affiliation(s)
- Samantha K Von Rueden
- Department of Veterinary Clinical Medicine, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Timothy M Fan
- Department of Veterinary Clinical Medicine, University of Illinois at Urbana-Champaign, Champaign, IL, United States.,Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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7
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Gibson DN, Singleton DA, Brant B, Radford AD, Killick DR. Temporospatial distribution and country of origin of canine transmissible venereal tumours in the UK. Vet Rec 2021; 189:e974. [PMID: 34773267 DOI: 10.1002/vetr.974] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/03/2021] [Accepted: 09/16/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Transmissable venereal tumour (TVT) is a tumour transplanted by physical contact between dogs. Lesions typically affect the genitalia. TVT is not considered enzootic in the United Kingdom (UK), with cases seen in imported dogs. We sought to determine the patient characteristics, temporal and spatial distribution and country of origin of affected dogs in the UK. METHODS Electronic pathology records (EPRs) from four UK veterinary diagnostic laboratories collected between 2010 and 2019 were searched for the terms 'venereal' or 'TVT'. Reports were reviewed for statements confirming a TVT and descriptive statistics collated. RESULTS Of 182 EPRs matching the search terms, a diagnosis of TVT was confirmed in 71. Country of origin was noted in 36 cases (50.7%) with Romania being the most common (n = 29). Cases were reported in each UK constituent country, with the majority being in England (64, 90.1%). The incidence of TVT diagnosis increased over the last decade (z = 2.78, p = 0.005). CONCLUSIONS/DISCUSSION The incidence of TVT diagnosed in the UK is increasing. The majority of cases were known to have been imported. Autochthonous transmission cannot be excluded due to study design. Vets are encouraged to carefully examine the genitalia of dogs imported to the UK from countries with enzootic TVT.
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Affiliation(s)
- Danielle N Gibson
- Department of Small Animal Clinical Sciences, Leahurst Campus, University of Liverpool, Neston, UK
| | - David A Singleton
- SAVSNET, Institute of Infection, Veterinary and Ecological Sciences, Leahurst Campus, University of Liverpool, Neston, UK
| | - Beth Brant
- SAVSNET, Institute of Infection, Veterinary and Ecological Sciences, Leahurst Campus, University of Liverpool, Neston, UK
| | - Alan D Radford
- SAVSNET, Institute of Infection, Veterinary and Ecological Sciences, Leahurst Campus, University of Liverpool, Neston, UK
| | - David R Killick
- Department of Small Animal Clinical Sciences, Leahurst Campus, University of Liverpool, Neston, UK
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8
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Kattner P, Zeiler K, Herbener VJ, Ferla-Brühl KL, Kassubek R, Grunert M, Burster T, Brühl O, Weber AS, Strobel H, Karpel-Massler G, Ott S, Hagedorn A, Tews D, Schulz A, Prasad V, Siegelin MD, Nonnenmacher L, Fischer-Posovszky P, Halatsch ME, Debatin KM, Westhoff MA. What Animal Cancers teach us about Human Biology. Theranostics 2021; 11:6682-6702. [PMID: 34093847 PMCID: PMC8171098 DOI: 10.7150/thno.56623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/09/2021] [Indexed: 12/30/2022] Open
Abstract
Cancers in animals present a large, underutilized reservoir of biomedical information with critical implication for human oncology and medicine in general. Discussing two distinct areas of tumour biology in non-human hosts, we highlight the importance of these findings for our current understanding of cancer, before proposing a coordinated strategy to harvest biomedical information from non-human resources and translate it into a clinical setting. First, infectious cancers that can be transmitted as allografts between individual hosts, have been identified in four distinct, unrelated groups, dogs, Tasmanian devils, Syrian hamsters and, surprisingly, marine bivalves. These malignancies might hold the key to improving our understanding of the interaction between tumour cell and immune system and, thus, allow us to devise novel treatment strategies that enhance anti-cancer immunosurveillance, as well as suggesting more effective organ and stem cell transplantation strategies. The existence of these malignancies also highlights the need for increased scrutiny when considering the existence of infectious cancers in humans. Second, it has long been understood that no linear relationship exists between the number of cells within an organism and the cancer incidence rate. To resolve what is known as Peto's Paradox, additional anticancer strategies within different species have to be postulated. These naturally occurring idiosyncrasies to avoid carcinogenesis represent novel potential therapeutic strategies.
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Affiliation(s)
- Patricia Kattner
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Katharina Zeiler
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
- Department of Neurosurgery, University Medical Center Ulm, Ulm, Germany
| | - Verena J. Herbener
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | | | | | - Michael Grunert
- Department of Nuclear Medicine, German Armed Forces Hospital of Ulm, Ulm, Germany
- Department of Nuclear Medicine, University Medical Center Ulm, Ulm, Germany
| | - Timo Burster
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan Republic
| | - Oliver Brühl
- Laboratorio Analisi Sicilia Catania, Lentini; SR, Italy
| | - Anna Sarah Weber
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Hannah Strobel
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Georg Karpel-Massler
- Department of Neurosurgery, University Medical Center Ulm, Ulm, Germany
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY, USA
| | - Sibylle Ott
- Animal Research Center, University of Ulm, Ulm, Germany
| | | | - Daniel Tews
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Center, Ulm, Germany
| | - Ansgar Schulz
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Vikas Prasad
- Department of Nuclear Medicine, University Medical Center Ulm, Ulm, Germany
| | - Markus D. Siegelin
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY, USA
| | - Lisa Nonnenmacher
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Pamela Fischer-Posovszky
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Center, Ulm, Germany
| | | | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Mike-Andrew Westhoff
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
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9
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Parker T, Jaffey JA, Hostnik ET, White M, Chamberlin T, da Cunha A, Wycislo KL. Rhinoscopic Appearance and Clinical Features of a Nasal Transmissible Venereal Tumor in a Dog. Top Companion Anim Med 2020; 42:100476. [PMID: 33069901 DOI: 10.1016/j.tcam.2020.100476] [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: 09/10/2020] [Revised: 09/19/2020] [Accepted: 10/12/2020] [Indexed: 11/26/2022]
Abstract
A 2-year-old male neutered mixed breed dog was referred for evaluation of left-sided unilateral epistaxis and mucoid discharge following adoption from Mexico 2 months prior to presentation. Computed tomography (CT) showed soft tissue that filled the entirety of the left nasal passage with mild turbinate loss. Subsequent rhinoscopy revealed multifocal patches of discrete, white, wispy, vascularized abnormal tissue in the left nasal cavity. Cytology and histopathology procured with rhinoscopic-guidance were suspicious for transmissible venereal tumor (TVT). Confirmation of a TVT diagnosis was made with polymerase chain reaction for the long interspersed element inserted upstream of the c-myc gene. The dog was treated with 4 cycles of vincristine (0.5 mg/m2, IV, once every 7 days) with complete and sustained resolution of clinical signs shortly after the third cycle. Nasal TVT in dogs is an uncommon presentation of a neoplasm that primarily results in genital or oral lesions. There is a void in the veterinary literature regarding the rhinoscopic appearance, as well as limited clinical descriptions of nasal TVT. Therefore, the objectives of this report were to provide a detailed description of the rhinoscopic appearance of a canine nasal TVT, in addition to clinical features, diagnostic findings, CT imaging, and successful therapeutic management.
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Affiliation(s)
- Tracy Parker
- Department of Specialty Medicine, Midwestern University College of Veterinary Medicine, Glendale, AZ
| | - Jared A Jaffey
- Department of Specialty Medicine, Midwestern University College of Veterinary Medicine, Glendale, AZ.
| | - Eric T Hostnik
- Department of Veterinary Clinical Sciences, Veterinary Medical Center, Ohio State University, Columbus, OH
| | - Mary White
- Department of Pathology and Population Medicine, Midwestern University College of Veterinary Medicine, Glendale, AZ
| | - Tamara Chamberlin
- Department of Pathology and Population Medicine, Midwestern University College of Veterinary Medicine, Glendale, AZ
| | - Anderson da Cunha
- Department of Specialty Medicine, Midwestern University College of Veterinary Medicine, Glendale, AZ
| | - Kathryn L Wycislo
- Department of Pathology and Population Medicine, Midwestern University College of Veterinary Medicine, Glendale, AZ
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Dujon AM, Gatenby RA, Bramwell G, MacDonald N, Dohrmann E, Raven N, Schultz A, Hamede R, Gérard AL, Giraudeau M, Thomas F, Ujvari B. Transmissible Cancers in an Evolutionary Perspective. iScience 2020; 23:101269. [PMID: 32592998 PMCID: PMC7327844 DOI: 10.1016/j.isci.2020.101269] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 05/02/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023] Open
Abstract
Inter-individual transmission of cancer cells represents an intriguing and unexplored host-pathogen system, with significant ecological and evolutionary ramifications. The pathogen consists of clonal malignant cell lines that spread horizontally as allografts and/or xenografts. Although only nine transmissible cancer lineages in eight host species from both terrestrial and marine environments have been investigated, they exhibit evolutionary dynamics that may provide novel insights into tumor-host interactions particularly in the formation of metastases. Here we present an overview of known transmissible cancers, discuss the necessary and sufficient conditions for cancer transmission, and provide a comprehensive review on the evolutionary dynamics between transmissible cancers and their hosts.
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Affiliation(s)
- Antoine M Dujon
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia
| | - Robert A Gatenby
- Department of Radiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Georgina Bramwell
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia
| | - Nick MacDonald
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia
| | - Erin Dohrmann
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia
| | - Nynke Raven
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia
| | - Aaron Schultz
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia
| | - Rodrigo Hamede
- School of Natural Sciences, University of Tasmania, Private Bag 55, Hobart, TAS 7001, Australia
| | - Anne-Lise Gérard
- CREEC, UMR IRD 224-CNRS 5290-Université de Montpellier, Montpellier, France
| | - Mathieu Giraudeau
- CREEC, UMR IRD 224-CNRS 5290-Université de Montpellier, Montpellier, France
| | - Frédéric Thomas
- CREEC, UMR IRD 224-CNRS 5290-Université de Montpellier, Montpellier, France
| | - Beata Ujvari
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia; School of Natural Sciences, University of Tasmania, Private Bag 55, Hobart, TAS 7001, Australia.
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Abstract
AbstractAlthough there is a plethora of cancer associated-factors that can ultimately culminate in death (cachexia, organ impairment, metastases, opportunistic infections, etc.), the focal element of every terminal malignancy is the failure of our natural defences to control unlimited cell proliferation. The reasons why our defences apparently lack efficiency is a complex question, potentially indicating that, under Darwinian terms, solutions other than preventing cancer progression are also important contributors. In analogy with host-parasite systems, we propose to call this latter option ‘tolerance’ to cancer. Here, we argue that the ubiquity of oncogenic processes among metazoans is at least partially attributable to both the limitations of resistance mechanisms and to the evolution of tolerance to cancer. Deciphering the ecological contexts of alternative responses to the cancer burden is not a semantic question, but rather a focal point in understanding the evolutionary ecology of host-tumour relationships, the evolution of our defences, as well as why and when certain cancers are likely to be detrimental for survival.
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12
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Alzate JM, Montoya-Florez LM, Pérez JE, Rocha NS, Pedraza-Ordonez FJ. The role of the multi-drug resistance 1, p53, b cell lymphoma 2, and bcl 2-associated X genes in the biologic behavior and chemotherapeutic resistance of canine transmissible venereal tumors. Vet Clin Pathol 2019; 48:730-739. [PMID: 31777108 DOI: 10.1111/vcp.12805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/02/2019] [Accepted: 02/16/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND Canine transmissible venereal tumors (CTVTs) generally have different cytomorphologic subtypes and phases of progression. Some tumors have variable biologic behavior including a progressive increase in tumor aggressiveness and variable responses to chemotherapy. This behavior is partially due to high p-glycoprotein expression by tumor cells, which leads to the expulsion of chemotherapeutic drugs. Other possible causes include changes in pro- and anti-apoptotic genes from the BCL-2 family and DNA repair systems, which are associated with the p53 gene family. OBJECTIVES We aimed to determine the relative expression of the multi-drug resistance 1 (MDR1), p53, b-cell lymphoma 2 (BCL2), and bcl 2-associated X (BAX) genes in CTVT before and after therapy and establish a relationship with treatment responses, cytomorphologic patterns, and tumor progression identified with histopathology. METHODS RT-qPCR was performed on 21 CTVT tumor samples before and after initiating chemotherapy to determine specific gene expression. Normal canine testicular tissue was used as a negative control for all experiments. RESULTS MDR1 expression was decreased before and after initiating vincristine therapy in CTVT tumor tissues compared with normal canine testicular tissue; p53 and BAX were overexpressed at both time points compared with normal tissue, and no statistical differences were seen between the different morphologic types. However, BAX expression was decreased in the group with quick therapeutic responses but was still overexpressed compared with normal testicular tissue. In the group with the slowest chemotherapeutic responses, BCL2 was overexpressed. CONCLUSION The findings of this study showed a relative increase in MDR1 gene expression in response to chemotherapy and higher expression in plasmacytoid CTVTs compared with the other cytomorphologic patterns. BCL2 overexpression was related to a favorable prognosis, and p53, BAX, and BCL2 were expressed independent of the cytomorphologic CTVT type. All of the genes were expressed independent of tumor progression, as noted on histopathology.
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Affiliation(s)
- Juliana M Alzate
- Faculty of Agricultural Sciences, Veterinary Medicine Department, Universidad de Pamplona, Pamplona, Colombia
| | - Luis M Montoya-Florez
- Faculty of Veterinary Medicine, Universidad Nacional de Colombia, Bogotá, Colombia.,Research Group in Veterinary Medicine and Husbandry - GIDIMEVETZ, Pedagogical and Technological University of Colombia, Tunja, Colombia
| | - Jorge E Pérez
- Basic Sciences Department, Universidad de Caldas, Manizales, Colombia
| | - Noeme S Rocha
- Laboratory of Investigative and Comparative Pathology, FMVZ-UNESP, Botucatu, Brazil
| | - Francisco J Pedraza-Ordonez
- Research Group in Veterinary Pathology, Animal Health Department, Universidad de Caldas, Manizales, Colombia
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13
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Evaluation of a Canine Transmissible Venereal Tumour Cell Line with Tumour Immunity Capacity but Without Tumorigenic Property. J Vet Res 2019; 63:225-233. [PMID: 31276062 PMCID: PMC6598177 DOI: 10.2478/jvetres-2019-0024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 03/19/2019] [Indexed: 11/20/2022] Open
Abstract
Introduction Canine transmissible venereal tumour (CTVT) is a sexually transmitted tumour affecting dogs worldwide, imposing a financial burden on dog owners. A stable culture cell line in continuous passages for >18 months has only been achieved once. The present study investigated a stable CTVT cell line isolated from a bitch and its potential as a vaccine. Material and Methods A biopsy from a 2-year-old mongrel bitch with CTVT was obtained for histopathological confirmation and isolation of tumour cells. The isolated cells were cultured to passage 55 and characterised by flow cytometry, with karyotyping by GTG-banding and by PCR detection of myc S-2 and LINE AS1. The isolated CTVT cell line was also used as a preventive vaccine in a canine model. Results Histopathological analysis of the isolated tumour cells revealed typical CTVT characteristics. Constant proliferation and stable morphological characteristics were observed during culture. Phenotypic analysis determined the expression of HLA-DR+, CD5.1+, CD14+, CD45+, CD83+, CD163+, and Ly-6G-Ly-6C+. GTG-banding revealed a mean of 57 chromosomes in the karyotype with several complex chromosomal rearrangements. LINE-c-myc insertion in the isolated CTVT cell line at 550 bp was not detected. However, a 340-bp band was amplified. Isolated CTVT cell line inoculation at a concentration of 1×108 did not induce tumour growth in bitches, nor did a challenge with primary CTVT cells. Conclusion The present study successfully identified and isolated a stable CTVT cell line that may be useful in CTVT prevention.
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14
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Vural SA, Haziroglu R, Vural MR, Polat IM, Tunc AS. Detection of progressive and regressive phase and LINE-1 retrotransposon in transfected dogs with transmissible venereal tumor during chemotherapy. J Vet Sci 2018; 19:620-626. [PMID: 30041285 PMCID: PMC6167336 DOI: 10.4142/jvs.2018.19.5.620] [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: 12/14/2017] [Revised: 05/21/2018] [Accepted: 06/25/2018] [Indexed: 11/20/2022] Open
Abstract
Canine transmissible venereal tumor (CTVT) is a tumor that commonly occurs in genital and extragenital sites of both genders. Long interspersed nuclear elements (LINE-1) retrotransposon has a pivotal role in allogenic transfection among uncontrolled dog populations. This study aimed to perform pathomorphological, immunohistochemical, and in situ polymerase chain reaction (PCR) evaluation of CTVT (n = 18) in transfected dogs during chemotherapy. Immunohistochemically, tumor phases were investigated by using specific markers (CD3, CD4, CD8, CD79, and transforming growth factor beta [TGF-β]), and investigated an amplified specific sequence of TVT LINE-1 retrotransposon by in situ PCR. Polyhedral-shaped neoplastic cells that had large, round, hypo/hyperchromatic nuclei and eosinophilic cytoplasm were detected. All marker results were positive, especially in the early weeks of recovery. CD4 and TGF-β markers were conspicuously positive at the initial stage. In situ PCR LINE-1 sequence was initially positive in only four cases. It is believed that the CD and TGF-β markers provide phase identification at tumor initiation and during chemotherapy. It is thought that presence of T and B lymphocytes, which have roles in cellular and humoral immunity, is needed so that regression of the tumor is possible.
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Affiliation(s)
- Sevil Atalay Vural
- Departments of Pathology Faculty of Veterinary Medicine, Ankara University, 06110 Ankara, Turkey
| | - Rifki Haziroglu
- Departments of Pathology Faculty of Veterinary Medicine, Ankara University, 06110 Ankara, Turkey
| | - Mehmet R Vural
- Departments of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Ankara University, 06110 Ankara, Turkey
| | - Ibrahim M Polat
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Kirikkale University, 71450 Kirikkale, Turkey
| | - Arda S Tunc
- Departments of Pathology Faculty of Veterinary Medicine, Ankara University, 06110 Ankara, Turkey
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Kanca H, Tez G, Bal K, Ozen D, Alcigir E, Atalay Vural S. Intratumoral recombinant human interferon alpha-2a and vincristine combination therapy in canine transmissible venereal tumour. Vet Med Sci 2018; 4:364-372. [PMID: 30117719 PMCID: PMC6236129 DOI: 10.1002/vms3.119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Canine transmissible venereal tumour (CTVT) is a naturally occurring contagious neoplasm of dogs located mainly on the external genitalia of both sexes. The course of vincristine chemotherapy, the most effective and practical therapy, is affected by the immune status of the host. The aim was to investigate recombinant human interferon alpha‐2a (rhIFNα‐2a) and vincristine for treatment of CTVT. A total of 21 female dogs were included. In group I (n = 9), vincristine (0.025 mg/kg, IV) was administered weekly. In group II (n = 6), dogs were injected intratumorally weekly with 1.5 million IU rhIFNα‐2a. In group III (n = 6), rhIFNα‐2a and vincristine were combined. No tumour regression was observed after three injections of rhIFNα‐2a in group II and weekly vincristine was administered. The number of tumour infiltrating lymphocytes (TILs), mitotic figures and apoptotic cells were counted in subsequent incisional tumour biopsies. The Kaplan–Meier Method was used to analyse survival using complete tumour regression as the outcome and Breslow Test was used for comparison of survival curves. Differences in TILs, cell proliferation and apoptosis between groups were assessed by analysis of covariance. Complete regression was observed in all animals included. Mean duration of vincristine treatment for complete regression was shorter in group II (3.50 weeks, 95% CI, 3.06–3.94, P < 0.05) and group III (3.17 weeks, 95% CI, 2.84–3.49, P < 0.01) compared to group I (5.11 weeks, 95% CI, 4.42–5.80). Vincristine and rhIFNα‐2a combination increased TILs in CTVT biopsies compared to vincristine treatment (P = 0.017) and vincristine treatment after rhIFNα‐2a (P = 0.049). Vincristine treatment after rhIFNα‐2a (Group II; P < 0.001) and rhIFNα‐2a and vincristine combination (Group III; P < 0.001) decreased apoptosis. The results indicate that intratumoral rhIFNα‐2a treatment alone is not effective in CTVT. However, combination of rhIFNα‐2a and vincristine shortens the duration of treatment compared to vincristine therapy.
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Affiliation(s)
- Halit Kanca
- Department of Obstetrics and Gynaecology, Ankara University, Ankara, Turkey
| | - Gizem Tez
- Department of Obstetrics and Gynaecology, Ankara University, Ankara, Turkey
| | - Kazim Bal
- Department of Obstetrics and Gynaecology, Ankara University, Ankara, Turkey
| | - Dogukan Ozen
- Department of Biostatistics, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Eray Alcigir
- Department of Pathology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Sevil Atalay Vural
- Department of Pathology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
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16
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Ballestero Fêo H, Montoya Flórez L, Yamatogi RS, Prado Duzanski A, Araújo JP, Oliveira RA, Rocha NS. Does the tumour microenvironment alter tumorigenesis and clinical response in transmissible venereal tumour in dogs? Vet Comp Oncol 2018; 16:370-378. [DOI: 10.1111/vco.12388] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 12/20/2017] [Accepted: 01/04/2018] [Indexed: 12/22/2022]
Affiliation(s)
- H. Ballestero Fêo
- Department of Veterinary Clinics, Faculty of Veterinary Medicine; UNESP; Botucatu Brazil
| | - L. Montoya Flórez
- Department of Veterinary Clinics, Faculty of Veterinary Medicine; UNESP; Botucatu Brazil
- Veterinary Pathology Research Group, Faculty of Agricultural Sciences; Universidad de Caldas; Manizales Colombia
- Universidad Pedagógica y Tecnológica de Colombia; Boyacá Colombia
| | - R. S. Yamatogi
- Department of Veterinary; Federal University of Viçosa; Viçosa Brazil
| | - A. Prado Duzanski
- Department of Veterinary Clinics, Faculty of Veterinary Medicine; UNESP; Botucatu Brazil
- Department of Pathology, Botucatu Medical School; UNESP; Botucatu Brazil
| | - J. P. Araújo
- Institute of Biosciences, Department of Microbiology and Immunology, Laboratory of Virology; UNESP; Botucatu Brazil
| | - R. A. Oliveira
- Department of Biostatistics, Biosciences Institute - IB; UNESP; Botucatu Brazil
| | - N. S. Rocha
- Department of Veterinary Clinics, Faculty of Veterinary Medicine; UNESP; Botucatu Brazil
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17
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Flórez LM, Ballestero HF, Duzanski AP, Bersano PR, Lima JF, Cruz FL, Mota LS, Rocha NS. Immunocytochemical characterization of primary cell culture in canine transmissible venereal tumor. PESQUISA VETERINÁRIA BRASILEIRA 2016. [DOI: 10.1590/s0100-736x2016000900009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract: Immunochemistry with anti-vimentin, anti-lysozyme, anti-alpha 1 antitrypsin, anti-CD3 and anti-CD79α antibodies has been used for characterization of primary cell culture in the transmissible venereal tumor (TVT). Samples for primary cell culture and immunohistochemistry assays were taken from eight dogs with cytological and clinical diagnosis of TVT. To validate the immunochemical results in the primary cell culture of TVT, a chromosome count was performed. For the statistical analysis, the Mann-Whitney test with p<0.05 was used. TVT tissues and culture cells showed intense anti-vimentin immunoreactivity, lightly to moderate immunoreactivity for anti-lysozyme, and mild for anti-alpha-antitrypsin. No marking was achieved for CD3 and CD79α. All culture cells showed chromosomes variable number of 56 to 68. This is the first report on the use of immunocytochemical characterization in cell culture of TVT. Significant statistic difference between immunochemistry in tissue and culture cell was not established, what suggests that the use of this technique may provide greater certainty for the confirmation of tumors in the primary culture. This fact is particularly important because in vitro culture of tumor tissues has been increasingly used to provide quick access to drug efficacy and presents relevant information to identify potential response to anticancer medicine; so it is possible to understand the behavior of the tumor.
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Affiliation(s)
- Luis M.M. Flórez
- Universidade Estadual Paulista, Brazil; Universidade de Caldas, Colombia
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18
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Setthawongsin C, Techangamsuwan S, Tangkawattana S, Rungsipipat A. Cell-based polymerase chain reaction for canine transmissible venereal tumor (CTVT) diagnosis. J Vet Med Sci 2016; 78:1167-73. [PMID: 27075116 PMCID: PMC4976273 DOI: 10.1292/jvms.15-0710] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Canine transmissible venereal tumor (CTVT) is the only naturally contagious tumor that is
transmitted during coitus or social behaviors. Based on the tumor’s location, the
diagnosis of genital TVT (GTVT) is comparably easier than those in the extragenital area
(ETVT) that are more easily incorrectly diagnosed. Fortunately, CTVT cells contain a
specific long interspersed nuclear elements (LINE), inserted upstream of the
myc gene, allowing a diagnostic polymerase chain reaction (PCR) based
detection assay. The objectives of this study were aimed to improve the diagnostic
accuracy by applying the diagnostic LINE1-c-myc PCR assay and fine needle
aspiration (FNA) collection in direct comparison with standard cytological and
histopathological analyses. Seventy-four dogs, comprised of 41 and 31 dogs with tumor
masses at their external genitalia and extragenital areas (e.g. skin and nasal cavity),
respectively, were included in this study. The signalment of these 65 dogs and clinical
history of 20 client-owned dogs were collected. Samples were taken by biopsy for both
histopathological examination and FNA for cytological examination and diagnostic PCR. The
PCR products from 10 apparently CTVT samples were purified and sequenced. Sixty-one CTVT
cases were diagnosed by cytological and histological analyses, but 65 were positive by the
PCR assay. Overall, the PCR assay improved the accuracy of diagnostic CTVT results,
especially for the more difficult ETVT tumors. Moreover, this PCR-based approach can
facilitate the decision as to discontinue chemotherapy by discrimination between residual
tumor cell masses and fibrotic tissue.
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Affiliation(s)
- Chanokchon Setthawongsin
- Companion Animal Cancer Research Unit, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
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19
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Ujvari B, Gatenby RA, Thomas F. The evolutionary ecology of transmissible cancers. INFECTION GENETICS AND EVOLUTION 2016; 39:293-303. [PMID: 26861618 DOI: 10.1016/j.meegid.2016.02.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 12/20/2022]
Abstract
Transmissible tumours, while rare, present a fascinating opportunity to examine the evolutionary dynamics of cancer as both an infectious agent and an exotic, invasive species. Only three naturally-occurring transmissible cancers have been observed so far in the wild: Tasmanian devil facial tumour diseases, canine transmissible venereal tumour, and clam leukaemia. Here, we define four conditions that are necessary and sufficient for direct passage of cancer cells between either vertebrate or invertebrate hosts. Successful transmission requires environment and behaviours that facilitate transfer of tumour cells between hosts including: tumour tissue properties that promote shedding of large numbers of malignant cells, tumour cell plasticity that permits their survival during transmission and growth in a new host, and a 'permissible' host or host tissue. This rare confluence of multiple host- and tumour cell-traits both explains the rarity of tumour cell transmission and provides novel insights into the dynamics that both promote and constrain their growth.
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Affiliation(s)
- Beata Ujvari
- Deakin University, Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Waurn Ponds, Vic 3216, Australia.
| | - Robert A Gatenby
- Department of Radiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
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20
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Ostrander EA, Davis BW, Ostrander GK. Transmissible Tumors: Breaking the Cancer Paradigm. Trends Genet 2015; 32:1-15. [PMID: 26686413 DOI: 10.1016/j.tig.2015.10.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 09/11/2015] [Accepted: 10/15/2015] [Indexed: 12/23/2022]
Abstract
Transmissible tumors are those that have transcended the bounds of their incipient hosts by evolving the ability to infect another individual through direct transfer of cancer cells, thus becoming parasitic cancer clones. Coitus, biting, and scratching are transfer mechanisms for the two primary species studied, the domestic dog (Canis lupus familiaris) and the Tasmanian devil (Sarcophilus harrisii). Canine transmissible venereal tumors (CTVT) are likely thousands of years old, and have successfully travelled from host to host around the world, while the Tasmanian devil facial tumor disease (DFTD) is much younger and geographically localized. The dog tumor is not necessarily lethal, while the devil tumor has driven the population to near extinction. Transmissible tumors are uniform in that they have complex immunologic profiles, which allow them to escape immune detection by their hosts, sometimes for long periods of time. In this review, we explore how transmissible tumors in CTVT, DFTD, and as well as the soft-shell clam and Syrian hamster, can advance studies of tumor biology.
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Affiliation(s)
- Elaine A Ostrander
- National Human Genome Research Institute, National Institutes of Health, 50 South Drive, Building 50 Room 5351, Bethesda MD 20892, USA.
| | - Brian W Davis
- National Human Genome Research Institute, National Institutes of Health, 50 South Drive, Building 50 Room 5351, Bethesda MD 20892, USA
| | - Gary K Ostrander
- Department of Biomedical Science, 600W College Ave, College of Medicine, Florida State University, Tallahassee, Tallahassee, FL 32306, USA
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21
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Panchin AY, Tuzhikov AI, Panchin YV. Midichlorians--the biomeme hypothesis: is there a microbial component to religious rituals? Biol Direct 2014; 9:14. [PMID: 24990702 PMCID: PMC4094439 DOI: 10.1186/1745-6150-9-14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 06/23/2014] [Indexed: 01/08/2023] Open
Abstract
Background Cutting edge research of human microbiome diversity has led to the development of the microbiome-gut-brain axis concept, based on the idea that gut microbes may have an impact on the behavior of their human hosts. Many examples of behavior-altering parasites are known to affect members of the animal kingdom. Some prominent examples include Ophiocordyceps unilateralis (fungi), Toxoplasma gondii (protista), Wolbachia (bacteria), Glyptapanteles sp. (arthropoda), Spinochordodes tellinii (nematomorpha) and Dicrocoelium dendriticum (flat worm). These organisms belong to a very diverse set of taxonomic groups suggesting that the phenomena of parasitic host control might be more common in nature than currently established and possibly overlooked in humans. Presentation of the hypothesis Some microorganisms would gain an evolutionary advantage by encouraging human hosts to perform certain rituals that favor microbial transmission. We hypothesize that certain aspects of religious behavior observed in the human society could be influenced by microbial host control and that the transmission of some religious rituals could be regarded as the simultaneous transmission of both ideas (memes) and parasitic organisms. Testing the hypothesis We predict that next-generation microbiome sequencing of samples obtained from gut or brain tissues of control subjects and subjects with a history of voluntary active participation in certain religious rituals that promote microbial transmission will lead to the discovery of microbes, whose presence has a consistent and positive association with religious behavior. Our hypothesis also predicts a decline of participation in religious rituals in societies with improved sanitation. Implications of the hypothesis If proven true, our hypothesis may provide insights on the origin and pervasiveness of certain religious practices and provide an alternative explanation for recently published positive associations between parasite-stress and religiosity. The discovery of novel microorganisms that affect host behavior may improve our understanding of neurobiology and neurochemistry, while the diversity of such organisms may be of interest to evolutionary biologists and religious scholars. Reviewers This article was reviewed by Prof. Dan Graur, Dr. Rob Knight and Dr. Eugene Koonin
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Affiliation(s)
- Alexander Y Panchin
- Institute for Information Transmission Problems, Moscow, Russian Federation.
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22
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Howson LJ, Morris KM, Kobayashi T, Tovar C, Kreiss A, Papenfuss AT, Corcoran L, Belov K, Woods GM. Identification of dendritic cells, B cell and T cell subsets in Tasmanian devil lymphoid tissue; evidence for poor immune cell infiltration into devil facial tumors. Anat Rec (Hoboken) 2014; 297:925-38. [PMID: 24664954 PMCID: PMC4112814 DOI: 10.1002/ar.22904] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 12/09/2013] [Indexed: 11/11/2022]
Abstract
The Tasmanian devil is under threat of extinction due to the transmissible devil facial tumor disease (DFTD). This fatal tumor is an allograft that does not induce an immune response, raising questions about the activity of Tasmanian devil immune cells. T and B cell analysis has been limited by a lack of antibodies, hence the need to produce such reagents. Amino acid sequence analysis revealed that CD4, CD8, IgM, and IgG were closely related to other marsupials. Monoclonal antibodies were produced against CD4, CD8, IgM, and IgG by generating bacterial fusion proteins. These, and commercial antibodies against CD1a and CD83, identified T cells, B cells and dendritic cells by immunohistochemistry. CD4+ and CD8+ T cells were identified in pouch young thymus, adult lymph nodes, spleen, bronchus‐ and gut‐associated lymphoid tissue. Their anatomical distribution was characteristic of mammalian lymphoid tissues with more CD4+ than CD8+ cells in lymph nodes and splenic white pulp. IgM+ and IgG+ B cells were identified in adult lymph nodes, spleen, bronchus‐associated lymphoid tissue and gut‐associated lymphoid tissue, with more IgM+ than IgG+ cells. Dendritic cells were identified in lymph node, spleen and skin. This distribution is consistent with eutherian mammals and other marsupials, indicating they have the immune cell subsets for an anti‐tumor immunity. Devil facial tumor disease tumors contained more CD8+ than CD4+ cells, but in low numbers. There were also low numbers of CD1a+ and MHC class II+ cells, but no CD83+ IgM+ or IgG+ B cells, consistent with poor immune cell infiltration. Anat Rec, 297:925–938, 2014. © 2014 The Authors. The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Lauren J Howson
- Menzies Research Institute Tasmania, University of Tasmania, Tasmania, Australia
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23
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Ganguly B, Das U, Das AK. Canine transmissible venereal tumour: a review. Vet Comp Oncol 2013; 14:1-12. [DOI: 10.1111/vco.12060] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 05/16/2013] [Accepted: 06/27/2013] [Indexed: 11/28/2022]
Affiliation(s)
- B. Ganguly
- Animal Biotechnology Center, Department of Veterinary Physiology and Biochemistry, College of Veterinary and Animal Sciences; G. B. Pant University of Agriculture and Technology; Pantnagar India
| | - U. Das
- Broad Street Pet Clinics; Kolkata India
| | - A. K. Das
- Department of Surgery and Radiology, College of Veterinary and Animal Sciences; G. B. Pant University of Agriculture and Technology; Pantnagar India
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24
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Vaginal Canine Transmissible Venereal Tumour Associated with Intra-tumoural Leishmania spp. Amastigotes in an Asymptomatic Female Dog. J Comp Pathol 2013; 149:156-61. [DOI: 10.1016/j.jcpa.2012.11.241] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 10/17/2012] [Accepted: 11/29/2012] [Indexed: 11/21/2022]
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25
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Trevizan JT, Carreira JT, Souza NC, Carvalho IR, Gomes PBC, Lima VMF, Orlandi CMB, Rozza DB, Koivisto MB. Disseminated transmissible venereal tumour associated with Leishmaniasis in a dog. Reprod Domest Anim 2013; 47 Suppl 6:356-8. [PMID: 23279537 DOI: 10.1111/rda.12110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 07/25/2012] [Indexed: 11/30/2022]
Abstract
This report addresses an atypical transmissible venereal tumour in an 8-year-old bitch that was pluriparous and seropositive for leishmaniasis. There were ascites and a serosanguineous discharge from the vulva, but no lesions on the external genital mucosa. An aspirate of the peritoneal fluid showed mononuclear round cells characteristic of transmissible venereal tumour (TVT). Exploratory laparotomy revealed light red, granulomatous structures in the peritoneum, omentum, spleen, liver and uterine horns. Cytological and histopathological tests confirmed the diagnosis of intra-abdominal TVT. Dissemination of the TVT to several organs inside the abdominal cavity probably resulted from immunosuppression caused by leishmaniasis, which favoured the presence and aggressiveness of TVT.
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Affiliation(s)
- J T Trevizan
- Department of Clinic, Surgery and Animal Reproduction, Faculty of Veterinary Medicine, UNESP - Univ Estadual Paulista, FMVA, Araçatuba, Brazil
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26
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Chikweto A, Kumthekar S, Larkin H, Deallie C, Tiwari KP, Sharma RN, Bhaiyat MI. Genital and Extragenital Canine Transmissible Venereal Tumor in Dogs in Grenada, West Indies. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ojvm.2013.32018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Ibrahim AM, Porter BF. Pathology in practice. Transmissible venereal tumor located on the bulbus glandis and body of the penis. J Am Vet Med Assoc 2012; 241:707-9. [PMID: 22947153 DOI: 10.2460/javma.241.6.707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- AbdelAzim M Ibrahim
- Department of Pathology, College of Veterinary Medicine, Suez Canal University, Ismailia, Egypt 41522
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28
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Common Lesions in the Male Reproductive Tract of Cats and Dogs. Vet Clin North Am Small Anim Pract 2012; 42:527-45, vii. [DOI: 10.1016/j.cvsm.2012.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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29
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Marino G, Gaglio G, Zanghì A. Clinicopathological study of canine transmissible venereal tumour in leishmaniotic dogs. J Small Anim Pract 2012; 53:323-7. [DOI: 10.1111/j.1748-5827.2012.01201.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Stockmann D, Ferrari HF, Andrade AL, Cardoso TC, Luvizotto MCR. Detection of the tumour suppressor gene TP53 and expression of p53, Bcl-2 and p63 proteins in canine transmissible venereal tumour. Vet Comp Oncol 2011; 9:251-9. [PMID: 22077405 DOI: 10.1111/j.1476-5829.2010.00260.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Canine transmissible venereal tumour (CTVT) is a neoplasm transmitted among healthy dogs by direct contact with injured skin and/or mucous tissue. This study aimed to identify the TP53 gene, messenger RNA (mRNA) as well as the expression of p53, Bcl-2 and p63 proteins in histological sections of 13 CTVT samples at different stages of evolution. The in situ hybridization (ISH) and in situ reverse transcriptase polymerase chain reaction (RT-PCR) assays were used, which showed the DNA homologous to TP53 and its respective mRNA in 92.3% of the samples. We detected p53, p63 and Bcl-2 proteins in most of the cell samples in different grades of intensity. In addition, 46% of the samples were in the progressive and 54% in the regression phase. This is the first description of these proteins and a detailed study of their role in CTVT cells needs to be addressed in or to verify how these cells undergo apoptosis.
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Affiliation(s)
- D Stockmann
- Faculty of Veterinary Medicine, Laboratory of Animal Pathology, University of São Paulo State, Araçatuba, São Paulo, Brazil
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31
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Abstract
Although cancer can on occasion be caused by infectious agents such as specific bacteria, parasites, and viruses, it is not generally considered a transmissible disease. In rare circumstances, however, direct communication from one host to another has been documented. The Tasmanian devil is now threatened with extinction in the wild because of a fatal transmissible cancer, devil facial tumor disease (DFTD). Another example is canine transmissible venereal tumor (CTVT or Sticker's sarcoma) in dogs. There is a vast difference in prognosis between these two conditions. DFTD is often fatal within 6 months, whereas most cases of CTVT are eventually rejected by the host dog, who then is conferred lifelong immunity. In man, only scattered case reports exist about such communicable cancers, most often in the setting of organ or hematopoietic stem cell transplants and cancers arising during pregnancy that are transmitted to the fetus. In about one third of cases, transplant recipients develop cancers from donor organs from individuals who were found to harbor malignancies after the transplantation. The fact that two thirds of the time cancer does not develop, along with the fact that cancer very rarely is transmitted from person to person, supports the notion that natural immunity prevents such cancers from taking hold in man. These observations might hold invaluable clues to the immunobiology and possible immunotherapy of cancer.
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Affiliation(s)
- James S Welsh
- Departments of Radiology and Neurosurgery, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana 71130, USA.
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32
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Kabuusu RM, Stroup DF, Fernandez C. Risk factors and characteristics of canine transmissible venereal tumours in Grenada, West Indies. Vet Comp Oncol 2010; 8:50-5. [DOI: 10.1111/j.1476-5829.2009.00204.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Gobeil P, Gault EA, Campo MS, Gow J, Morgan IM, Nasir L. Equine sarcoids are not induced by an infectious cell line. Equine Vet J 2010; 39:189-91. [PMID: 17378450 DOI: 10.2746/042516407x179879] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- P Gobeil
- Division of Pathological Sciences, Institute of Comparative Medicine, University of Glasgow Faculty of Veterinary Medicine, Bearsden Road, Glasgow G61 OH, UK
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Thomas R, Rebbeck C, Leroi AM, Burt A, Breen M. Extensive conservation of genomic imbalances in canine transmissible venereal tumors (CTVT) detected by microarray-based CGH analysis. Chromosome Res 2009; 17:927-34. [PMID: 19798471 DOI: 10.1007/s10577-009-9080-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2009] [Accepted: 09/01/2009] [Indexed: 01/06/2023]
Abstract
Canine transmissible venereal tumor (CTVT) is an intriguing cancer that is transmitted naturally as an allograft by transplantation of viable tumor cells from affected to susceptible dogs. At least initially, the tumor is able to evade the host's immune response; thus, CTVT has potential to provide novel insights into tumor immunobiology. The nature of CTVT as a "contagious" cancer, originating from a common ancestral source of infection, has been demonstrated previously by a series of studies comparing geographically distinct tumors at the molecular level. While these studies have revealed that apparently unrelated tumors share a striking degree of karyotypic conservation, technological restraints have limited the ability to investigate the chromosome composition of CTVTs in any detail. We present characterization of a strategically selected panel of CTVT cases using microarray-based comparative genomic hybridization analysis at ~one-megabase resolution. These data show for the first time that the tumor presents with an extensive range of non-random chromosome copy number aberrations that are distributed widely throughout the dog genome. The majority of abnormalities detected were imbalances of small subchromosomal regions, often involving centromeric and telomeric sequences. All cases also showed the sex chromosome complement XO. There was remarkable conservation in the cytogenetic profiles of the tumors analyzed, with only minor variation observed between different cases. These data suggest that the CTVT genome demonstrates a vast degree of both structural and numerical reorganization that is maintained during transmission among the domestic dog population.
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Affiliation(s)
- Rachael Thomas
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough Street, Raleigh, NC, 27606, USA
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Abstract
Until recently, cancer in wildlife was not considered to be a conservation concern. However, with the identification of Tasmanian devil facial tumour disease, sea turtle fibropapillomatosis and sea lion genital carcinoma, it has become apparent that neoplasia can be highly prevalent and have considerable effects on some species. It is also clear that anthropogenic activities contribute to the development of neoplasia in wildlife species, such as beluga whales and bottom-dwelling fish, making them sensitive sentinels of disturbed environments.
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Affiliation(s)
- Denise McAloose
- Pathology and Disease Investigation, Global Health Program, Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, New York, New York 10460, USA.
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Park MS, Kim Y, Kang MS, Oh SY, Cho DY, Shin NS, Kim DY. Disseminated transmissible venereal tumor in a dog. J Vet Diagn Invest 2007; 18:130-3. [PMID: 16566273 DOI: 10.1177/104063870601800123] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Transmissible venereal tumor (TVT) is a well-documented transplantable tumor in dogs, with no breed or sex predilection and a low metastatic rate. In this report, a 2-year-old intact female Mastiff that had numerous, rapidly growing masses throughout the subcutis mainly at the dorsal body plane, the caudal half of the ventral abdomen, and around the vulva was euthanized due to poor prognosis. Neoplastic nodules similar to those seen in the subcutis were also noted in the lung, anterior mediastinum, liver, spleen, kidney, and superficial and deep lymph nodes in both abdominal and thoracic cavities. The neoplastic nodules from the subcutis as well as metastatic foci revealed similar cytologic and histologic features, which were consistent with canine TVT. By immunohistochemical staining, the neoplastic cells were positive for lysozyme and vimentin but were negative for cytokeratin, desmin, CD3, and CD79a. The diagnosis of the TVT was further supported by the identification and analysis of long interspersed nuclear elements (LINE) from paraffin-embedded tumor tissue. This case is a rare example of TVT with multiorgan metastasis. In this case, the polymerase chain reaction technique was useful in differential diagnosis of canine round cell tumors because this technique can be applied in retrospective as well as future study.
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Affiliation(s)
- Mi-Sun Park
- Department of Veterinary Pathology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Korea
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Stettner N, Brenner O, Eilam R, Harmelin A. Pegylated liposomal doxorubicin as a chemotherapeutic agent for treatment of canine transmissible venereal tumor in murine models. J Vet Med Sci 2006; 67:1133-9. [PMID: 16327225 DOI: 10.1292/jvms.67.1133] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The effectiveness of Doxil as a new chemotherapeutic agent against canine transmissible venereal tumor was evaluated, using NOD/ SCID and CD1-nu xenograft mouse models and the response between the two mouse strains was compared. Samples of xenografted venereal tumor were inoculated SC into 20 six week-old NOD/SCID mice and 20 six week-old CD1-nu mice. Seven weeks later, tumor-bearing mice were divided into treatment and control groups. Treatment group was injected with Doxil (6 mg/kg, IP, as a single injection). Control group was injected with buffered saline (0.75cc, IP). Tumor size was determined by caliper measurements and tumor response was assessed according to standard criteria. In both strains there was a significant decrease in tumor size in response to Doxil treatment (P<0.0001). In CD1-nu eight out of nine tumors (88%) responded to the treatment, and in 2 cases complete remission was observed. In NOD/SCID group response to the treatment was seen in eight out of ten tumors (80%) but none regressed fully. Response to the treatment was statistically equal in both strains even though the apoptotic rate, confirmed by TUNEL staining, was higher in NOD/SCID than in CD-1-nu (8.65% and 0.7%, respectively) and tumor infiltrating cells were different: eosinophils in NOD/SCID and CD45R-positive B lymphocytes, and plasma cells in CD-1-nu. In untreated CD1-nu mice, tumor progress was slower than in NOD/SCID. Our results indicate that Doxil is effective against CTVT in mouse xenograft models.
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Affiliation(s)
- Noa Stettner
- Department of Veterinary Resources, Weizmann Institute of Science, Rehovot, Israel
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Albanese F, Salerni FL, Giordano S, Marconato L. Extragenital transmissible venereal tumour associated with circulating neoplastic cells in an immunologically compromised dog. Vet Comp Oncol 2006; 4:57-62. [DOI: 10.1111/j.1476-5810.2006.00092.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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