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Joselevitch JA, Vargas THM, Pulz LH, Cadrobbi KG, Huete GC, Nishiya AT, Kleeb SR, Xavier JG, Strefezzi RDF. High lysyl oxidase expression is an indicator of poor prognosis in dogs with cutaneous mast cell tumours. Vet Comp Oncol 2023; 21:401-405. [PMID: 37186079 DOI: 10.1111/vco.12898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/19/2023] [Accepted: 04/12/2023] [Indexed: 05/17/2023]
Abstract
Mast cell tumour (MCT) is one of the most frequent skin tumours in dogs. Due to their unpredictable biological behaviour, MCTs often cause several therapeutic frustrations, leading to investigation regarding prognostic markers. Lysyl oxidase (LOX) is an enzyme that promotes extracellular matrix stability and contributes to cell migration, angiogenesis and epithelial-mesenchymal transition. Its expression positively correlates with poor prognoses in several human and canine mammary cancers. The aim of this study was to characterise the immunohistochemical expression of LOX in MCT samples and compare it with histological grading and post-surgical survival. Twenty-six tumours were submitted to immunohistochemistry for LOX expression evaluation. All samples were positive for LOX, with variable percentages of cytoplasmic and nuclear positivity. Cytoplasmic positivity was significantly higher in high-grade MCTs (P = .0297). Our results indicate that high expression of cytoplasmic LOX in neoplastic mast cells is an indicator of poor prognosis for canine cutaneous MCTs.
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Affiliation(s)
- Julia Antongiovanni Joselevitch
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
- Faculdade de Medicina Veterinária e Zootecnia, Departamento de Patologia, Universidade de São Paulo, São Paulo, Brazil
| | - Thiago Henrique Moroni Vargas
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
| | - Lidia Hildebrand Pulz
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
- Faculdade de Medicina Veterinária e Zootecnia, Departamento de Patologia, Universidade de São Paulo, São Paulo, Brazil
| | - Karine Germano Cadrobbi
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
- Clínica E+ Especialidades, São Paulo, Brazil
| | - Greice Cestari Huete
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
- Clínica E+ Especialidades, São Paulo, Brazil
| | | | - Silvia Regina Kleeb
- Universidade Anhembi Morumbi, São Paulo, Brazil
- Universidade Metodista de São Paulo, São Bernardo do Campo, Brazil
| | | | - Ricardo De Francisco Strefezzi
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
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Leite NG, Vargas THM, Ferro DG, Sobral RA, Venturini MAFA, Corrêa HL, Strefezzi RDF. Prognostic Value of Intratumoral Collagen Quantification in Canine Oral Melanomas. J Vet Dent 2022; 38:188-192. [PMID: 34986053 DOI: 10.1177/08987564211066638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The majority of the melanocytic neoplasms are considered malignant and highly metastatic. However, a subset of the melanocytic tumors has a more favorable prognosis and the identification of precise prognostic markers for this neoplasm may be useful to guide treatment. The collagen architecture and density have been shown to correlate with tumor progression in human breast cancer and canine mast cell tumors. The purpose of the present study was to investigate the prognostic value of the intratumoral collagen index (ICI) as an indicator of postsurgical survival and its relation with other prognostic markers for canine oral melanomas (OMs). Twenty-two cases were tested for intratumoral collagen density using Masson's trichrome stain and morphometry. No differences were found between dogs regarding survival. The ICI was not correlated with proliferative activity or nuclear atypia. The results presented herein indicate that the quantity of intratumoral collagen in canine OMs is not an efficient indicator of postsurgical survival. Complementary studies about the expression and activity of enzymes that are capable of degrading extracellular matrix (ECM) components are necessary.
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Affiliation(s)
- Natália Goulart Leite
- Laboratório de Oncologia Comparada e Translacional, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos da USP, Pirassununga, SP, Brazil
| | - Thiago Henrique Moroni Vargas
- Laboratório de Oncologia Comparada e Translacional, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos da USP, Pirassununga, SP, Brazil
| | | | | | | | | | - Ricardo De Francisco Strefezzi
- Laboratório de Oncologia Comparada e Translacional, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos da USP, Pirassununga, SP, Brazil
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3
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Daniel J, Barra CN, Pulz LH, Kleeb SR, Xavier JG, Catão-Dias JL, Nishiya AT, Fukumasu H, Strefezzi RF. Intratumoral collagen index predicts mortality and survival in canine cutaneous mast cell tumours. Vet Dermatol 2019; 30:162-e48. [PMID: 30693578 DOI: 10.1111/vde.12726] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND Mast cell tumours (MCTs) constitute almost 25% of cutaneous neoplasms in dogs. Their biological behaviour is predicted using histopathological grading which is based on several subjective criteria that are vulnerable to intra- and interobserver variability. To improve the prediction of the biological behaviour, several complementary markers have been studied. The integrity of the extracellular matrix (ECM) may play a protective role against tumoral progression, and favour cellular proliferation, angiogenesis, invasion and metastases when altered. HYPOTHESIS/OBJECTIVES To evaluate the quantification of collagen and elastic fibres as prognostic markers for MCTs. ANIMALS Thirty-eight random cases of canine cutaneous MCT surgically treated with wide margins were included. METHODS AND MATERIALS Intratumoral collagen and elastic fibres were identified and quantified on histological sections stained with Masson's trichrome, Picrosirius red and Verhoeff; the results were compared with histopathological grades, mortality due to the disease and postsurgical survival. RESULTS Morphometric analysis revealed a significant relationship between histopathological grade and intratumoral collagen index (CoI). In addition, the CoI was considered an independent indicator for mortality and postsurgical survival. CONCLUSIONS AND CLINICAL IMPORTANCE These results support the importance of the CoI in the grading and prognosis of MCTs, suggesting that preservation and/or synthesis of collagen have the potential to become targets for MCT therapeutics.
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Affiliation(s)
- Jessika Daniel
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 255, CEP 13635-900, Pirassununga, Brazil
| | - Camila N Barra
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 81, CEP 05508-270, São Paulo, Brazil
| | - Lidia H Pulz
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 81, CEP 05508-270, São Paulo, Brazil
| | - Silvia Regina Kleeb
- Universidade Metodista de São Paulo, Av. Dom Jaime de Barros Câmara, 1000, CEP 09895-400, São Bernardo do Campo, Brazil
| | | | - José Luiz Catão-Dias
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 81, CEP 05508-270, São Paulo, Brazil
| | - Adriana T Nishiya
- Universidade Anhembi-Morumbi, R. Dr. Almeida Lima 1134, CEP 03164-000, São Paulo, Brazil
| | - Heidge Fukumasu
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 255, CEP 13635-900, Pirassununga, Brazil
| | - Ricardo F Strefezzi
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 255, CEP 13635-900, Pirassununga, Brazil
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4
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Horta RS, Lavalle GE, Monteiro LN, Souza MCC, Cassali GD, Araújo RB. Assessment of Canine Mast Cell Tumor Mortality Risk Based on Clinical, Histologic, Immunohistochemical, and Molecular Features. Vet Pathol 2018; 55:212-223. [DOI: 10.1177/0300985817747325] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Mast cell tumor (MCT) is a frequent cutaneous neoplasm in dogs that is heterogeneous in clinical presentation and biological behavior, with a variable potential for recurrence and metastasis. Accurate prediction of clinical outcomes has been challenging. The study objective was to develop a system for classification of canine MCT according to the mortality risk based on individual assessment of clinical, histologic, immunohistochemical, and molecular features. The study included 149 dogs with a histologic diagnosis of cutaneous or subcutaneous MCT. By univariate analysis, MCT metastasis and related death was significantly associated with clinical stage ( P < .0001, rP = –0.610), history of tumor recurrence ( P < .0001, rP = –0.550), Patnaik ( P < .0001, rP = –0.380) and Kiupel grades ( P < .0001, rP = –0.500), predominant organization of neoplastic cells ( P < .0001, rP = –0.452), mitotic count ( P < .0001, rP = –0.325), Ki-67 labeling index ( P < .0001, rP = –0.414), KITr pattern ( P = .02, rP = 0.207), and c-KIT mutational status ( P < .0001, rP = –0.356). By multivariate analysis with Cox proportional hazard model, only 2 features were independent predictors of overall survival: an amendment of the World Health Organization clinical staging system (hazard ratio [95% CI]: 1.824 [1.210-4.481]; P = .01) and a history of tumor recurrence (hazard ratio [95% CI]: 9.250 [2.158-23.268]; P < .001]. From these results, we propose an amendment of the WHO staging system, a method of risk analysis, and a suggested approach to clinical and laboratory evaluation of dogs with cutaneous MCT.
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Affiliation(s)
| | - Gleidice E. Lavalle
- Department of Veterinary Clinics and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Lidianne N. Monteiro
- Laboratory of Comparative Pathology, Biological Science Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | | | - Geovanni D. Cassali
- Laboratory of Comparative Pathology, Biological Science Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Roberto B. Araújo
- Department of Veterinary Clinics and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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5
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Pulz LH, Strefezzi RF. Proteases as prognostic markers in human and canine cancers. Vet Comp Oncol 2016; 15:669-683. [PMID: 27136601 DOI: 10.1111/vco.12223] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/07/2016] [Indexed: 02/05/2023]
Abstract
The extracellular matrix (ECM) is composed of several types of proteins, which interact and form dynamic networks. These components can modulate cell behaviour and actively influence the growth and differentiation of tissues. ECM is also important in several pathological processes, such as cancer invasion and metastasis, by creating favourable microenvironments. Proteolysis in neoplastic tissues is mediated by proteinases, whose regulation involves complex interactions between neoplastic cells and non-neoplastic stromal cells. In this review, we discuss aspects of proteinase expression and tumor behaviour in humans and dogs. Different classes of proteases are summarized, with special emphasis being placed on molecules that have been shown to correlate with prognosis, reinforcing the need for a better understanding of the regulation of this microenvironment and its influences in tumor progression and metastasis, which should significantly aid the development of improved prognosis and treatment.
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Affiliation(s)
- L H Pulz
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
| | - R F Strefezzi
- Laboratório de Oncologia Comparada e Translacional (LOCT), Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
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6
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Pulz LH, Barra CN, Kleeb SR, Xavier JG, Catão-Dias JL, Sobral RA, Fukumasu H, Strefezzi RF. Increased expression of tissue inhibitor of metalloproteinase-1 correlates with improved outcome in canine cutaneous mast cell tumours. Vet Comp Oncol 2016; 15:606-614. [PMID: 27041588 DOI: 10.1111/vco.12204] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 11/29/2015] [Indexed: 01/21/2023]
Abstract
Canine mast cell tumour (MCT) is a biologically heterogeneous disease. The extracellular matrix degradation promoted by matrix metalloproteinases (MMPs) has been studied in an attempt to elucidate the mechanisms involved in the biological behaviour of tumours. The aim of this study was to characterize the expression of MMP-2 and -9 and tissue inhibitors of metalloproteinase (TIMP)-1 and -2 in canine cutaneous MCTs and to evaluate their prognostic values. Immunohistochemical staining for MMP-2, MMP-9, TIMP-2 and TIMP-1 was performed in 46 canine cases of MCTs. TIMP-1 expression showed an independent prognostic value for post-surgical survival and disease-related mortality. Dogs with MCTs showing less than 22.9% mast cell TIMP-1 positivity were more prone to die because of the disease and had a shorter post-surgical survival. This article suggests the involvement of TIMP-1 in MCT progression, by contributing to a good outcome in patients with MCTs.
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Affiliation(s)
- L H Pulz
- Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil.,Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
| | - C N Barra
- Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil.,Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
| | - S R Kleeb
- Universidade Metodista de São Paulo, São Bernardo do Campo, Brazil
| | - J G Xavier
- Universidade Paulista, São Paulo, Brazil
| | - J L Catão-Dias
- Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil
| | - R A Sobral
- Onco Cane Veterinária, São Paulo, Brazil
| | - H Fukumasu
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
| | - R F Strefezzi
- Laboratório de Oncologia Comparada e Translacional, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, Brazil
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7
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Gil da Costa RM. C-kit as a prognostic and therapeutic marker in canine cutaneous mast cell tumours: From laboratory to clinic. Vet J 2015; 205:5-10. [PMID: 26021891 DOI: 10.1016/j.tvjl.2015.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 04/29/2015] [Accepted: 05/02/2015] [Indexed: 12/28/2022]
Abstract
Cutaneous mast cell tumours (MCTs) are some of the most common canine neoplasms and their variable and often aggressive biological behaviour makes them particularly challenging for the veterinary practitioner. Over the years, scientists have accumulated a wealth of knowledge on these tumours and developed better prognostic markers and targeted therapies, mostly focused on inhibiting c-kit, a protein that plays a major role in the biopathology of MCTs. Masitinib and toceranib, targeted inhibitors of c-kit and other receptor tyrosine-kinases (RTKs), offer the promise of improving the outcome of patients with aggressive MCTs. Much of the available knowledge on MCTs is dispersed, making it difficult for practitioners to benefit when consulting a pathologist or making therapeutic decisions. This article seeks to bring together current knowledge on the biopathology of MCTs, reviewing prognostic markers and their applications, and the development of c-kit inhibitors in the context of the basic cellular, molecular and pathological features of MCTs. Future perspectives following recent biopathological data and experimental therapeutic approaches are also addressed.
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Affiliation(s)
- Rui M Gil da Costa
- Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia (LEPABE), Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, Porto, Portugal.
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8
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HANIFEH M, RAJAMÄKI MM, MÄKITALO L, SYRJÄ P, SANKARI S, KILPINEN S, SPILLMANN T. Identification of matrix metalloproteinase-2 and -9 activities within intestinal mucosa of clinically healthy beagle dogs. J Vet Med Sci 2014; 76:1079-85. [PMID: 24748420 PMCID: PMC4155186 DOI: 10.1292/jvms.13-0578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 04/01/2014] [Indexed: 01/20/2023] Open
Abstract
Matrix metalloproteinases (MMPs) 2 and 9 are zinc-dependent endopeptidases that contribute to the control of breakdown and reconstitution of extracellular matrix under both normal and pathological conditions. The main objective of this study was to identify the presence of MMP-2 and -9 in the mucosa of the small and large intestines of clinically healthy beagle dogs using gelatin zymography technique. Intestinal mucosa samples from four different parts of the intestine (duodenum, jejunum, ileum and colon) were taken from 12 healthy laboratory beagle dogs and examined histologically. Based on WSAVA histology standards, recorded findings of all samples were considered insignificant. Pro-MMP-2 and -9 activities were found in 17/48 (35%) and 25/48 (52%) of the samples, respectively. Among four different parts of the intestine of 12 dogs, the ileum had the highest positivity rates of 7/12 (58.3%) and 8/12 (66.7%) for pro-MMP-2 and -9 activities, respectively. However, statistical analysis showed no significant difference of pro-MMP-2 and -9 activities between the separate parts of the intestine (P>0.05). None of the intestinal samples showed gelatinolytic activity corresponding to the control bands of active MMP-2 and MMP-9. This study showed that pro-MMP-2 and -9 could be detected in the intestinal mucosa of healthy dogs using zymography, which seems to be a useful tool to evaluate the role of MMP-2 and -9 in the pathogenesis of canine chronic enteropathies, including inflammatory bowel diseases.
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Affiliation(s)
- Mohsen HANIFEH
- Department of Equine and Small Animal Medicine, Faculty of
Veterinary Medicine, University of Helsinki, P.O. Box 57 (Viikintie 49), 00014 Helsinki,
Finland
- Department of Clinical Sciences, Faculty of Veterinary
Medicine, University of Tabriz, Postal Code 5166616471, Tabriz, Iran
| | - Minna M RAJAMÄKI
- Department of Equine and Small Animal Medicine, Faculty of
Veterinary Medicine, University of Helsinki, P.O. Box 57 (Viikintie 49), 00014 Helsinki,
Finland
| | - Laura MÄKITALO
- Children’s Hospital, Helsinki University Central Hospital
and University of Helsinki, P.O. Box 63 (Haartmaninkatu 8), 00014 Helsinki, Finland
| | - Pernilla SYRJÄ
- Department of Veterinary Biosciences, Faculty of Veterinary
Medicine, University of Helsinki, P.O. Box 66 (Agnes Sjöbergin katu 2), 00014 Helsinki,
Finland
| | - Satu SANKARI
- Department of Equine and Small Animal Medicine, Faculty of
Veterinary Medicine, University of Helsinki, P.O. Box 57 (Viikintie 49), 00014 Helsinki,
Finland
| | - Susanne KILPINEN
- Department of Equine and Small Animal Medicine, Faculty of
Veterinary Medicine, University of Helsinki, P.O. Box 57 (Viikintie 49), 00014 Helsinki,
Finland
| | - Thomas SPILLMANN
- Department of Equine and Small Animal Medicine, Faculty of
Veterinary Medicine, University of Helsinki, P.O. Box 57 (Viikintie 49), 00014 Helsinki,
Finland
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Fenger JM, Bear MD, Volinia S, Lin TY, Harrington BK, London CA, Kisseberth WC. Overexpression of miR-9 in mast cells is associated with invasive behavior and spontaneous metastasis. BMC Cancer 2014; 14:84. [PMID: 24517413 PMCID: PMC3933481 DOI: 10.1186/1471-2407-14-84] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 01/27/2014] [Indexed: 02/08/2023] Open
Abstract
Background While microRNA (miRNA) expression is known to be altered in a variety of human malignancies contributing to cancer development and progression, the potential role of miRNA dysregulation in malignant mast cell disease has not been previously explored. The purpose of this study was to investigate the potential contribution of miRNA dysregulation to the biology of canine mast cell tumors (MCTs), a well-established spontaneous model of malignant mast cell disease. Methods We evaluated the miRNA expression profiles from biologically low-grade and biologically high-grade primary canine MCTs using real-time PCR-based TaqMan Low Density miRNA Arrays and performed real-time PCR to evaluate miR-9 expression in primary canine MCTs, malignant mast cell lines, and normal bone marrow-derived mast cells (BMMCs). Mouse mast cell lines and BMMCs were transduced with empty or pre-miR-9 expressing lentiviral constructs and cell proliferation, caspase 3/7 activity, and invasion were assessed. Transcriptional profiling of cells overexpressing miR-9 was performed using Affymetrix GeneChip Mouse Gene 2.0 ST arrays and real-time PCR was performed to validate changes in mRNA expression. Results Our data demonstrate that unique miRNA expression profiles correlate with the biological behavior of primary canine MCTs and that miR-9 expression is increased in biologically high grade canine MCTs and malignant cell lines compared to biologically low grade tumors and normal canine BMMCs. In transformed mouse malignant mast cell lines expressing either wild-type (C57) or activating (P815) KIT mutations and mouse BMMCs, miR-9 overexpression significantly enhanced invasion but had no effect on cell proliferation or apoptosis. Transcriptional profiling of normal mouse BMMCs and P815 cells possessing enforced miR-9 expression demonstrated dysregulation of several genes, including upregulation of CMA1, a protease involved in activation of matrix metalloproteases and extracellular matrix remodeling. Conclusions Our findings demonstrate that unique miRNA expression profiles correlate with the biological behavior of canine MCTs. Furthermore, dysregulation of miR-9 is associated with MCT metastasis potentially through the induction of an invasive phenotype, identifying a potentially novel pathway for therapeutic intervention.
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Giantin M, Aresu L, Benali S, Aricò A, Morello E, Martano M, Vascellari M, Castagnaro M, Lopparelli R, Zancanella V, Granato A, Mutinelli F, Dacasto M. Expression of Matrix Metalloproteinases, Tissue Inhibitors of Metalloproteinases and Vascular Endothelial Growth Factor in Canine Mast Cell Tumours. J Comp Pathol 2012; 147:419-29. [DOI: 10.1016/j.jcpa.2012.01.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 12/20/2011] [Accepted: 01/12/2012] [Indexed: 02/05/2023]
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11
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Mackowiak II, Gentile LB, Chaible LM, Nagamine MK, Guerra JM, Mota EFF, Matera JM, Mennecier G, Sanches DS, Dagli MLZ. E-cadherin in canine mast cell tumors: decreased expression and altered subcellular localization in Grade 3 tumors. Vet J 2012; 194:405-11. [PMID: 22766308 DOI: 10.1016/j.tvjl.2012.05.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 05/18/2012] [Accepted: 05/19/2012] [Indexed: 11/19/2022]
Abstract
Mast cell tumors (MCTs) are the most frequent round cell tumors in dogs and comprise approximately 21% of all canine cutaneous tumors. MCTs are highly invasive and metastatic corresponding to the histological grade. E-cadherin is an adhesion molecule expressed in epithelial cells and although it is an epithelial cellular marker, studies have shown expression of E-cadherin in canine round cell tumors. To better characterize the expression pattern of E-cadherin in several different histological grades of MCTs in dogs, the expression and localization of the adhesion molecule was investigated using immunohistochemistry. For this purpose, 18 cutaneous MCTs were classified into three histological grades, 1, 2 or 3. Clinical history and follow-up data were available for all of the dogs. Cytoplasmic and nuclear expressions of E-cadherin in all three types of tumors were verified by immunostaining using two different antibodies. There was decreased E-cadherin expression in the more aggressive MCTs (Grade 3), suggesting an association between E-cadherin and tumor aggressiveness. Additionally, the loss of E-cadherin expression in either the cytoplasm or nucleus in more aggressive and undifferentiated tumor types confirmed the importance of cellular adhesion in tumor behavior.
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Affiliation(s)
- I I Mackowiak
- Laboratory of Experimental and Comparative Oncology, Department of Pathology, School of Veterinary Medicine and Animal Science of the University of São Paulo, São Paulo, Brazil
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12
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Hansen RA, Anderson C, Fettman MJ, Larue SM, Davenport DJ, Gross KL, Richardson KL, Ogilvie GK. Menhaden oil administration to dogs treated with radiation for nasal tumors demonstrates lower levels of tissue eicosanoids. Nutr Res 2012; 31:929-36. [PMID: 22153519 DOI: 10.1016/j.nutres.2011.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/21/2011] [Accepted: 09/26/2011] [Indexed: 11/28/2022]
Abstract
Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) or menhaden oil may reduce inflammatory eicosanoids (prostaglandin E₂, thromboxane B₂, leukotriene B₄, and 11-dehydro thromboxane B₂), matrix metalloproteinases (MMPs), and blood lactate in dogs with nasal carcinomas receiving radiation therapy. We hypothesized that menhaden oil would reduce inflammation from radiation damage and lower blood lactate levels in dogs with nasal carcinoma. In a randomized, double-blind, placebo-controlled clinical study, 12 dogs with malignant carcinomas of the nasal cavity were given dietary menhaden oil (DHA and EPA) or soybean oil (control) and then received radiation therapy. Megavoltage radiation was delivered in 18 fractions to a total dose of 56 Gy. Blood levels of DHA, EPA, insulin, glucose, lactic acid, and MMPs 2 and 9; resting energy expenditure; and inflammatory eicosanoids from nasal biopsies were measured throughout radiation therapy. Samples were obtained from each patient 1 week before the start of radiation therapy, at start of radiation, and 7, 18 (end of radiation therapy), and 42 days after radiation was initiated. Dogs that are fed with menhaden oil had significantly (P < .05) higher plasma concentration of DHA by 500% and EPA by 200% and had significantly lower tissue inflammatory eicosanoids and decreased resting energy expenditure by 20% when compared with controls. Increased plasma DHA was significantly associated (P < .05) with decreased plasma lactic acid and MMPs. These data may suggest that dietary fish oil could reduce some detrimental inflammatory eicosanoids and metabolic consequences of radiation therapy.
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Affiliation(s)
- Rodney A Hansen
- Department of Health Promotion and Human Performance, 2801 University Circle, Weber State University, Ogden, UT 84408, USA.
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Hillman LA, Garrett LD, de Lorimier LP, Charney SC, Borst LB, Fan TM. Biological behavior of oral and perioral mast cell tumors in dogs: 44 cases (1996-2006). J Am Vet Med Assoc 2010; 237:936-42. [PMID: 20946081 DOI: 10.2460/javma.237.8.936] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To describe clinical outcome of dogs with mast cell tumors (MCTs) arising from the oral mucosa, oral mucocutaneous junction, or perioral region of the muzzle and evaluate the potential role of the chemokine receptor type 7 (CCR7) in the biological behavior of these tumors. DESIGN Retrospective case series. ANIMALS 44 dogs with MCTs of the oral mucosa (n=14), oral mucocutaneous junction (19), or perioral region of the muzzle (11). PROCEDURES Medical records were reviewed for information on signalment, regional metastasis, treatments, cause of death, and survival time. Twenty of the 44 cases had stored histologic samples available for immunohistochemical staining for CCR7 RESULTS For all dogs, median survival time was 52 months. Twenty-six (59%) dogs had regional lymph node metastasis on admission. Median survival time for dogs with lymph node metastasis was 14 months, whereas median survival time was not reached for dogs without lymph node metastasis. Intensity of staining for CCR7 was not significantly associated with the presence of regional lymph node metastasis or survival time. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that in dogs with MCTs arising from the oral mucosa, oral mucocutaneous junction, or perioral region of the muzzle, the presence of regional lymph node metastasis at the time of diagnosis was a negative prognostic factor. However, prolonged survival times could be achieved with treatment. In addition, CCR7 expression in the primary tumor was not significantly associated with the presence of regional lymph node metastasis or survival time.
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Affiliation(s)
- Lorin A Hillman
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61802, USA
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14
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Zheng J, Chen Y, Pat B, Dell’Italia LA, Tillson M, Dillon AR, Powell P, Shi K, Shah N, Denney T, Husain A, Dell’Italia LJ. Microarray identifies extensive downregulation of noncollagen extracellular matrix and profibrotic growth factor genes in chronic isolated mitral regurgitation in the dog. Circulation 2009; 119:2086-95. [PMID: 19349319 PMCID: PMC3092370 DOI: 10.1161/circulationaha.108.826230] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The volume overload of isolated mitral regurgitation (MR) in the dog results in left ventricular (LV) dilatation and interstitial collagen loss. To better understand the mechanism of collagen loss, we performed a gene array and overlaid regulated genes into ingenuity pathway analysis. METHODS AND RESULTS Gene arrays from LV tissue were compared in 4 dogs before and 4 months after MR. Cine-magnetic resonance-derived LV end-diastolic volume increased 2-fold (P=0.005), and LV ejection fraction increased from 41% to 53% (P<0.007). LV interstitial collagen decreased 40% (P<0.05) compared with controls, and replacement collagen was in short strands and in disarray. Ingenuity pathway analysis identified Marfan syndrome, aneurysm formation, LV dilatation, and myocardial infarction, all of which have extracellular matrix protein defects and/or degradation. Matrix metalloproteinase-1 and -9 mRNA increased 5- (P=0.01) and 10-fold (P=0.003), whereas collagen I did not change and collagen III mRNA increased 1.5-fold (P=0.02). However, noncollagen genes important in extracellular matrix structure were significantly downregulated, including decorin, fibulin 1, and fibrillin 1. In addition, connective tissue growth factor and plasminogen activator inhibitor were downregulated, along with multiple genes in the transforming growth factor-beta signaling pathway, resulting in decreased LV transforming growth factor-beta1 activity (P=0.03). CONCLUSIONS LV collagen loss in isolated, compensated MR is chiefly due to posttranslational processing and degradation. The downregulation of multiple noncollagen genes important in global extracellular matrix structure, coupled with decreased expression of multiple profibrotic factors, explains the failure to replace interstitial collagen in the MR heart.
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Affiliation(s)
- Junying Zheng
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
| | - Yuanwen Chen
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
| | - Betty Pat
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
| | - Louis A Dell’Italia
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
| | - Michael Tillson
- Auburn University College of Veterinary Medicine, Auburn, AL
| | - A Ray Dillon
- Auburn University College of Veterinary Medicine, Auburn, AL
| | - Pamela Powell
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
| | - Ke Shi
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
| | - Neil Shah
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
| | | | - Ahsan Husain
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
- Department of Physiology and Biophysics, University of Alabama, Birmingham, AL, Birmingham
| | - Louis J Dell’Italia
- Center for Heart Failure Research, Department of Medicine, University of Alabama, Birmingham, AL, Birmingham
- Department of Veteran Affairs, Auburn, AL
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15
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Di Terlizzi R, Platt SR. The function, composition and analysis of cerebrospinal fluid in companion animals: Part II – Analysis. Vet J 2009; 180:15-32. [DOI: 10.1016/j.tvjl.2007.11.024] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Revised: 11/22/2007] [Accepted: 11/25/2007] [Indexed: 11/15/2022]
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Mandara MT, Pavone S, Mandrioli L, Bettini G, Falzone C, Baroni M. Matrix Metalloproteinase-2 and Matrix Metalloproteinase-9 Expression in Canine and Feline Meningioma. Vet Pathol 2009; 46:836-45. [DOI: 10.1354/vp.08-vp-0185-m-fl] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Fifty-one meningiomas obtained from 28 dogs and 23 cats were selected for this study to investigate the immunohistochemical expression of matrix metalloproteinase (MMP)-2 and MMP-9 and to compare it to the reverse transcriptase subunit of human-telomerase, progesterone receptor expression, and the proliferative index of the tumors, expressed by Ki67 and proliferating cellular nuclear antigen. Paraffin-embedded tumor tissue was obtained from biopsy samples (28 cases) and at necropsy (23 cases). The most common histotype was malignant in dogs (12/28) and transitional in cats (12/23). Slides immunolabelled for MMPs showed a diffuse cytoplasmic pattern. Twenty-one cases (19 dogs and 2 cats) did not express MMP-2, while only 2 cases were completely negative for MMP-9. The highest values of MMP-2 and MMP-9 were observed in a psammomatous and meningothelial tumor, respectively. On statistical analysis, MMP-2 expression did not show a significant correlation with MMP-9. Moreover, both MMP expressions failed to show significant variance among histologic patterns of the tumor and correlation with the proliferative index. MMP immunolabeling showed an inconstant correlation with progesterone receptor expression. No significant correlation was found between MMP and reverse transcriptase subunit of human-telomerase expression. In feline meningiomas, the MMP-2 value was significantly higher than in canine tumors and the MMP-9 value tended to be low for meningiomas with a follow-up duration from the 23rdmonth to the 44thmonth. In cats, the longer the time from surgery, the lower the proliferative index seemed to be. In dogs, we failed to find a correlation between MMP expression and the follow-up duration.
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Affiliation(s)
- M. T. Mandara
- Department of Biopathological Science and Hygiene of Animal and Food Productions, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - S. Pavone
- Department of Biopathological Science and Hygiene of Animal and Food Productions, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - L. Mandrioli
- Department of Veterinary Public Health and Animal Pathology, Faculty of Veterinary Medicine, Bologna, Italy
| | - G. Bettini
- Department of Veterinary Public Health and Animal Pathology, Faculty of Veterinary Medicine, Bologna, Italy
| | - C. Falzone
- Clinica Veterinaria Valdinievole, Monsummano Terme, Pistoia, Italy
| | - M. Baroni
- Clinica Veterinaria Valdinievole, Monsummano Terme, Pistoia, Italy
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17
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Welle MM, Bley CR, Howard J, Rüfenacht S. Canine mast cell tumours: a review of the pathogenesis, clinical features, pathology and treatment. Vet Dermatol 2009; 19:321-39. [PMID: 18980632 DOI: 10.1111/j.1365-3164.2008.00694.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mast cells (MCs) are well known for their neoplastic transformation in solitary and multiple cutaneous mast cell tumours (MCTs), as well as visceral and systemic mastocytosis. Dogs have a unique risk of developing cutaneous MCTs, and they account for 7% to 21% of all canine skin tumours. The aetiology of canine MCTs is unknown but is probably multifactorial. This article reviews up-to-date knowledge on the pathogenesis, the clinical presentation, the clinical prognostic factors, the diagnostic workup including clinical staging, cytological findings, histological findings and the various grading systems which have been evaluated based on morphology, the assessment of proliferation markers and other factors such as vessel density. Furthermore, detailed information about current treatment protocols for canine cutaneous MCTs is provided.
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Affiliation(s)
- Monika M Welle
- Institute of Animal Pathology, Vetsuisse Faculty and University of Berne, Berne, Switzerland.
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18
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Expression of matrix metalloproteinase 2 and 9 in experimentally wounded canine corneas and spontaneous chronic corneal epithelial defects. Cornea 2008; 26:1213-9. [PMID: 18043179 DOI: 10.1097/ico.0b013e31814b8a28] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To determine matrix metalloproteinase (MMP) 2 and MMP 9 expression in acute and chronic experimentally wounded canine corneas and keratectomy samples from canine patients with spontaneous chronic corneal epithelial defects (SCCEDs). METHODS Mechanical debridement was performed unilaterally in 25 healthy dogs for the acute wound study. Twenty-four hours (n = 8), 48 hours (n = 5), 72 hours (n = 3), or 1 week (n = 9) after wounding, the dogs were euthanized. Debridement was performed once weekly for 8 weeks for the chronic study (n = 8). Therapeutic superficial keratectomies (n = 16) were performed on SCCED patients. Gelatin zymography and immunohistochemistry were performed. RESULTS Acute wounds showed upregulation of MMP 9 at all time points. At 7 days after wounding, values diminished markedly but remained elevated above those of unwounded controls. SCCED and chronic wound samples showed a significant increase in MMP 9 compared with controls but were less than that of acute wounds. There was no significant difference between chronic wounds versus SCCED samples. Fellow control eyes showed significant upregulation of MMP 9 in tandem with wounded eyes. There was no significant difference in values for MMP 2 in wounded corneas or SCCED compared with those of controls. Immunhistochemistry localized MMP 9 to predominantly the epithelium with some staining of keratinocytes and stroma. CONCLUSIONS The dog exhibits similar MMP expression during corneal wound healing to that of other species. The lack of significant difference in MMP expression between SCCED and chronic wounds suggest that MMP 2 and 9 are not involved in the pathophysiology of SCCED and are more likely altered secondary to a chronic epithelial defect.
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Moore AS, Dernell WS, Ogilvie GK, Kristal O, Elmslie R, Kitchell B, Susaneck S, Rosenthal R, Klein MK, Obradovoich J, Legendre A, Haddad T, Hahn K, Powers BE, Warren D. Doxorubicin and BAY 12-9566 for the Treatment of Osteosarcoma in Dogs: A Randomized, Double-Blind, Placebo-Controlled Study. J Vet Intern Med 2007. [DOI: 10.1111/j.1939-1676.2007.tb03022.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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20
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Romansik EM, Reilly CM, Kass PH, Moore PF, London CA. Mitotic index is predictive for survival for canine cutaneous mast cell tumors. Vet Pathol 2007; 44:335-41. [PMID: 17491075 DOI: 10.1354/vp.44-3-335] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Mitotic index (MI) is an indirect measure of cell proliferation that has been demonstrated to be a strong predictor of outcome for several human and canine cancers. The purpose of this study was to evaluate the utility of MI as a predictor of biologic behavior and survival in dogs with cutaneous mast cell tumors (MCTs). Medical records from 148 dogs with histologically confirmed MCTs were reviewed. Information regarding tumor grade, local recurrence, metastatic disease, date of death/last follow-up, and outcome was obtained. The region of the tumor with the highest overall mitotic activity was chosen for evaluation, and the MI value was defined as the number of mitotic figures/10 high-power fields (400x, 2.7 mm(2)). A Cox proportional hazards regression model was used to compare MI with survival data. A Mann-Whitney test was used to compare MI on the basis of the development of local recurrence and metastatic disease. The MI correlated directly with tumor grade (P < .0001). The median survival time for dogs with an MI < or =5 was significantly longer (70 months) than for those with an MI >5 (2 months), regardless of grade (P < .001). For grade II tumors with an MI < or =5, the median survival time (MST) was 70 months, compared with 5 months for those with an MI >5 (P < .001). For grade III tumors with an MI < or =5, the MST was not reached, compared with <2 months for those with an MI >5 (P < .001). In conclusion, MI is a strong predictor of overall survival for dogs with cutaneous MCTs and should be included as a prognostic indicator when determining therapeutic options.
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Affiliation(s)
- E M Romansik
- Veterinary Medical Teaching Hospital, UC Davis, CA, USA
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21
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Newman SJ, Mrkonjich L, Walker KK, Rohrbach BW. Canine subcutaneous mast cell tumour: diagnosis and prognosis. J Comp Pathol 2007; 136:231-9. [PMID: 17399734 DOI: 10.1016/j.jcpa.2007.02.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2006] [Accepted: 02/05/2007] [Indexed: 11/27/2022]
Abstract
The aim of this study was to characterize the pathology and clinical outcome of the subcutaneous variant of canine mast cell tumour. Fifty-three cases satisfying the inclusion criteria were selected from the pathology archive of the College of Veterinary Medicine, University of Tennessee. Referring veterinarians provided information on outcome. These dogs had a median age of 9 years (range 3-17 years). After characterizing tumours histologically, nuclear expression of proliferating cell nuclear antigen (PCNA) and Ki67 (MIB-1 clone) was determined immunohistochemically and mast cell origin was confirmed with c-Kit staining. Counts of argyrophilic nucleolar organizer regions (AgNOR) were determined by silver staining. Nuclear labelling was counted in 100 tumour cells. Margins were recorded as incomplete in 66% of dogs, and metastases occurred in 6% of dogs. The estimated minimum mean survival time from date of diagnosis was 1199 days, ranging from 55 to >1780 days. The median scores from immunohistochemical labelling were PCNA 0.05 and Ki67 0.03 per 100 tumour cells. The median score for AgNOR staining was 1.25 per 100 tumour cells. The patterns of c-Kit expression included membranous labelling in 20 tumours, stippled cytoplasmic labelling in 23 tumours and diffuse cytoplasmic labelling in 10 tumours. Age (r=-0.61, P=0.14) and AgNOR score (r=-0.58, P=0.17) had moderate, but non-significant, negative associations with survival. PCNA (r=-0.32, P=0.47), Ki67 (r=-0.22, P=0.64) and c-Kit immunolabelling was not associated with survival. The subcutaneous variant of canine mast cell tumour is distinct in having features of intermediate histological grade and extended mean survival times, suggesting a slightly better long-term prognosis than for higher grade dermal variants. Expression of nuclear proliferation markers is not associated with outcome.
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Affiliation(s)
- S J Newman
- Department of Pathobiology, University of Tennessee College of Veterinary Medicine, Knoxville, TN 37996-4542, USA
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22
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Lin TY, London CA. A functional comparison of canine and murine bone marrow derived cultured mast cells. Vet Immunol Immunopathol 2006; 114:320-34. [PMID: 17027994 DOI: 10.1016/j.vetimm.2006.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2006] [Revised: 09/06/2006] [Accepted: 09/07/2006] [Indexed: 10/24/2022]
Abstract
Disorders involving mast cells are extremely common in dogs, ranging from allergic diseases to neoplastic transformation resulting in malignant mast cell tumors. Relatively little is known regarding the basic biologic properties of normal canine mast cells, largely due to the difficulty in reliably purifying large numbers from canine skin. In vitro generated bone marrow derived cultured mast cells (BMCMCs) are routinely used in both human and murine studies as a ready source of material for in vitro and in vivo studies. We previously developed a technique to generate canine BMCMCs from bone marrow derived CD34+ cells and demonstrated that these cells exhibit the phenotypic properties characteristic of mast cells and release histamine in response to IgE cross-linking. The purpose of the following study was to characterize the functional properties of these canine BMCMCs and contrast these with the functional properties of murine BMCMCs. Our work demonstrates that both IL-4 and IL-10 promote canine BMCMC proliferation, possibly through upregulation of Kit expression, while TGFbeta inhibits proliferation. The canine BMCMCs produce a variety of cytokines and chemokines in response to IgE cross-linking and chemical stimulation including IL-3, IL-4, IL-13, GM-CSF, RANTES, and MIP1alpha. Interestingly, the canine BMCMCs released significantly larger amounts of MCP-1 and tryptase and significantly smaller amounts of IL-6 following chemical stimulation and IgE cross-linking when compared to murine BMCMCs. Lastly, the canine BMCMCs produced larger amounts of active MMP9 than their murine counterparts. In summary, canine BMCMCs exhibit unique functional properties that distinguish them from murine BMCMCs and provide insight into the contribution of these cells to mast cell disorders in the dog.
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Affiliation(s)
- Tzu-Yin Lin
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, 1925 Coffey Road, Columbus, OH 43210, USA
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23
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Nakaichi M, Yunuki T, Okuda M, Une S, Taura Y. Activity of matrix metalloproteinase-2 (MMP-2) in canine oronasal tumors. Res Vet Sci 2006; 82:271-9. [PMID: 17011604 DOI: 10.1016/j.rvsc.2006.07.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2005] [Revised: 07/08/2006] [Accepted: 07/18/2006] [Indexed: 11/20/2022]
Abstract
Activity of matrix metalloprotease-2 (MMP-2) and the expression of its related molecules were examined in spontaneous canine oronasal tumors. Tissue samples from melanoma and squamous cell carcinoma possessed higher MMP-2 activity, as shown in gelatin zymography, in comparison with acanthomatous epulis and nasal adenocarcinoma. Regional lymph node invasion and distant metastases were more frequently observed in the MMP-2 positive cases. There were no significant differences by RT-PCR examination in the expression of the genes encoding MMP-2, MT1-MMP and TIMP-2 among the tumor histological types. However, the MMP-2/TIMP-2 ratio showed a significantly higher level of the genes in the malignant oral melanoma and squamous cell carcinoma. The MMP-2/TIMP-2 ratio was also positively correlated with MMP-2 activity in gelatin zymography. These results indicate that the MMP-2/TIMP-2 ratio may be of value in evaluating the prognosis in canine oronasal cavity tumors.
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Affiliation(s)
- Munekazu Nakaichi
- Department of Veterinary Surgery, Faculty of Agriculture, Yamaguchi University, 1677-1 Ooaza Yoshida, Yamaguchi 753-8515, Japan.
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Fulcher RP, Ludwig LL, Bergman PJ, Newman SJ, Simpson AM, Patnaik AK. Evaluation of a two-centimeter lateral surgical margin for excision of grade I and grade II cutaneous mast cell tumors in dogs. J Am Vet Med Assoc 2006; 228:210-5. [PMID: 16426187 DOI: 10.2460/javma.228.2.210] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate completeness of excision and clinical outcome in dogs with cutaneous mast cell tumors (MCTs) excised with a lateral margin of 2 cm and a deep margin of 1 fascial plane. DESIGN Prospective study. ANIMALS 16 client-owned dogs with 1 or more cutaneous MCTs. PROCEDURE Excision of MCTs was performed with a 2-cm lateral margin and a deep margin of 1 fascial plane. Histologic tumor grading was performed; surgical margins were categorized as complete or incomplete. Follow-up information was obtained via repeat examination of the dogs by veterinarians or client-completed questionnaires. RESULTS 4 grade I and 19 grade II cutaneous MCTs were evaluated. Overall, 21 (91%) MCTs were completely excised; 2 grade II tumors had foci of mast cells at the 2-cm margin. Two dogs received adjunctive treatments following surgery. Follow-up information was available for all dogs (median follow-up period, 379 days; range, 51 to 538 days); no local recurrence was detected during this time. De novo MCTs were detected in 3 of 16 dogs at 37, 54, and 154 days after surgery. Via Kaplan-Meier analysis, median survival time and disease-free interval were both > 538 days (medians not yet reached). No prognostic variables were identified. CONCLUSIONS AND CLINICAL RELEVANCE Excision with a 2-cm lateral margin and a deep margin of 1 fascial plane may result in satisfactory excision of grades I and II MCTs in dogs, with recurrence rates similar to those reported previously. Use of these margins may minimize complications associated with larger local tumor resection.
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Affiliation(s)
- Ryan P Fulcher
- Department of Surgery, The Animal Medical Center, 510 E 62nd St, New York, NY 10021, USA
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25
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Gentilini F, Calzolari C, Turba ME, Agnoli C, Fava D, Forni M, Bergamini PF. Prognostic value of serum vascular endothelial growth factor (VEGF) and plasma activity of matrix metalloproteinase (MMP) 2 and 9 in lymphoma-affected dogs. Leuk Res 2005; 29:1263-9. [PMID: 15893373 DOI: 10.1016/j.leukres.2005.04.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2004] [Accepted: 04/07/2005] [Indexed: 10/25/2022]
Abstract
Canine non-Hodgkin's lymphoma (NHL) is considered to be a good animal model for its human counterpart; nevertheless, comparative data on neo-angiogenesis are completely lacking. The aim of this study is to investigate the levels of serum vascular endothelial growth factor (VEGF) and matrix metalloproteinases (MMPs) 2 and 9 in lymphoma-affected dogs. Circulating levels of VEGF and both MMP 2 and 9 activities significantly correlate with the WHO sub-stage b prognostic factor; moreover, VEGF at admission have an independent influence on the length of the disease free interval. As in humans, serum VEGF concentration and most likely also MMPs plasma activity have prognostic value in canine NHL spontaneous model.
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Affiliation(s)
- Fabio Gentilini
- Veterinary Clinical Department, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Bologna, Italy.
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Abstract
Cancer is one of the most common causes of death in dogs. The availability of multiple treatment modalities and novel therapeutic targets make the correct diagnosis, prognostic stratification, and the identification of treatment effect predictive factors an issue of major debate in cancer management. Selection of high and low risk patients and the type of systemic or local treatment is important in cancer management. The search for better prognostic markers and predictive factors is now focused on the molecular mechanisms which underlie tumour behaviour, such as altered cell cycle progression, proliferation, apoptosis, and angiogenesis. The ultimate goal is to identify reliable markers that can accurately diagnose and stage a tumour and predict tumour's clinical behaviour, prognosis and response to therapy. In this review, the current state of prognostication in canine tumours and promising new molecular markers are discussed. The markers are allocated to four groups according to their function: (i) proliferation markers, (ii) apoptosis, (iii) extracellular matrix and cell adhesion molecules, (iv) angiogenesis and (v) cell cycle regulators. Clinicopathological factors and histopathological grading remain the most practical parameters in decision-making. Although experimental research has shown that molecular markers have a good potential to be used as diagnostic, prognostic or predictive markers in canine tumours, insufficient evidence exists on their efficacy for routine use in veterinary oncology.
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Affiliation(s)
- S Mukaratirwa
- Department of Paraclinical Studies, Pathology Section, Faculty of Veterinary Science, University of Zimbabwe, Mount Pleasant, Harare.
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27
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Miya K, Misumi K, Miyoshi N, Arai K, Fujiki M, Kubota C, Sakamoto H. Interpreting Gelatinase Activity in Tumor Tissue and Serum as a Prognostic Marker of Naturally Developing Canine Tumors. J Vet Med Sci 2005; 67:769-75. [PMID: 16141663 DOI: 10.1292/jvms.67.769] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
To evaluate the clinical usefulness of tissue and serum gelatinase activity as a prognostic marker of canine tumors, tissue samples from 60 tumors and corresponding serum samples from the same animals were collected at the time of biopsy and surgery. On the basis of histopathology and clinical aggressiveness of metastasis and recurrence (MR), the cases were divided into 6 categories: non-inflammatory (Inf(-)) and inflammatory (Inf(+)) benign, and the Inf(-) MR(-), Inf(-) MR(+), Inf(+) MR(-), and Inf(+) MR(+) malignant. Gelatinase activity was determined semi-quantitatively using gelatin zymogram with a gelatinase standard from cultured canine peripheral blood mononuclear cells stimulated with lipopolysaccharide. No significant difference in gelatinase activities in tissue extracts was evident between the benign and malignant tumors. Inf(+) benign tumors, as well as Inf(-) MR(+), Inf(+) MR(-) and Inf(+) MR(+) malignant tumors, showed significantly higher tissue gelatinase activity than Inf(-) benign. The tissue activity in Inf(-) MR(-) malignant was significantly lower than in Inf(+) MR(-) and Inf(+) MR(+) malignant. The serum activity was significantly higher in the malignant cases than in the control and the benign. Inf(-) MR(+), Inf(+) MR(-) and Inf(+) MR(+) malignant tumors induced significantly higher gelatinase activity in serum than Inf(-) benign tumors. Gelatinase activity in serum was positively correlated with that in tumor extracts. Increased gelatinase in tumor tissue and serum may be correlated with inflammation as well as tumor aggressiveness, and thus should be used in combination with histopathology for predicting tumor metastasis or recurrence.
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Affiliation(s)
- Kanako Miya
- Department of Veterinary Science, Kagoshima University, Japan
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28
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Abstract
This article reviews the literature on mast cells and tumours derived from mast cells in the dog. Mast cells play a central role in inflammatory and immune reactions. Mast cells, normal and neoplastic, contain and release important biologically active substances: heparin, histamine, eosinophilic chemotactic factor and proteolytic enzymes. Mast cell tumours occur in the dog, particularly in the boxer and related breeds, in the skin and less frequently in the intestines. Cytology usually provides an accurate diagnosis, but histological examination adds further information concerning the histologic grade and the completeness of surgical therapy. Cutaneous mast cell tumours should be regarded as potentially malignant and therefore be removed widely (3 cm. margin). Local recurrence, regional and distant metastases together with paraneoplastic disorders may cause the death of the pet. Histologic grading (2 or 3 grades) and clinical staging together with kinetic parameters and breed (boxers have relatively benign tumours) are important prognostic parameters. Based on prognostic criteria, surgical treatment should be completed with adjuvant radiotherapy, corticosteroids and eventually with combined chemotherapy. A novel, promising therapy is the application of the receptor kinase inhibitor. The study of the pathogenesis of mast cell tumours received new impetus by the finding of mutations, deletions and duplications, in exons 11 and 12 of the C-kit oncogene. Further study of physiological and oncological aspects of mast cells are favoured by the availability of mast cells isolated from spontaneous mast cell tumours and of cultured cell lines.
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Affiliation(s)
- W Misdorp
- Emeritus Professor of Veterinary Oncology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
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Loukopoulos P, O'Brien T, Ghoddusi M, Mungall BA, Robinson WF. Characterisation of three novel canine osteosarcoma cell lines producing high levels of matrix metalloproteinases. Res Vet Sci 2004; 77:131-41. [PMID: 15196903 DOI: 10.1016/j.rvsc.2004.01.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2004] [Indexed: 11/18/2022]
Abstract
Three canine osteosarcoma cell lines were established from spontaneous pelvic and radial osteosarcomas. The cell populations cultured exhibited characteristics of malignancy and consisted of adherent, pleomorphic, mostly large spindle-shaped or polyhedral cells, characterised by the presence of numerous cytoplasmic granules and vacuoles. The main ultrastructural features included the presence of abundant rough endoplasmic reticulum and numerous cytoplasmic vesicles, deposit vacuoles and small cytoplasmic protrusions. Zymography showed that the cell lines produce high levels of MMP-2 and MMP-9, enzymes directly involved in crucial aspects of the metastatic process. Consistent with their osteoblastic lineage and malignant phenotype, all cell lines were immunoreactive to vimentin, osteopontin, PCNA, p53, MMP-2 and MMP-9, while they were negative for cytokeratin, desmin, SMA, Factor VIII, NSE, GFAP, Rb and p21 protein. No retroviral particles or RNA were detected ultrastructurally or with RT-PCR, although the possibility of viral involvement in osteosarcoma cannot be excluded. The new cell lines provide excellent in vitro models that may allow further studies on the pathobiology of canine osteosarcoma to be undertaken.
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Affiliation(s)
- P Loukopoulos
- School of Veterinary Science, The University of Queensland, Brisbane, Queensland 4072, Australia.
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30
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Loukopoulos P, Mungall BA, Straw RC, Thornton JR, Robinson WF. Matrix metalloproteinase-2 and -9 involvement in canine tumors. Vet Pathol 2003; 40:382-94. [PMID: 12824510 DOI: 10.1354/vp.40-4-382] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Matrix metalloproteinases (MMPs) are a family of enzymes implicated in the degradation and remodeling of extracellular matrix and in vascularization. They are also involved in pathologic processes such as tumor invasion and metastasis in experimental cancer models and in human malignancies. We used gelatin zymography and immunohistochemistry to determine whether MMP-2 and MMP-9 are present in canine tumors and normal tissues and whether MMP production correlates with clinicopathologic parameters of prognostic importance. High levels of pro-MMP-9, pro-MMP-2, and active MMP-2 were detected in most canine tumors. Significantly higher MMP levels were measured in canine tumors than in nontumors, malignancies had higher MMP levels than benign tumors, and sarcomas had higher active MMP-2 than carcinomas. Cartilaginous tumors produced higher MMP levels than did nonsarcomatous malignancies, benign tumors, and normal tissues, and significantly greater MMP-2 than osteosarcomas and fibrosarcomas. Pro-MMP-9 production correlated with the histologic grade of osteosarcomas. The 62-kd form of active MMP-2 was detected only in high-grade, p53-positive, metastatic malignancies. Zymography proved to be a sensitive and quantitative technique for the assessment of MMP presence but has the limitation of requiring fresh tissue; immunohistochemistry is qualitative and comparatively insensitive but could be of value in archival studies. MMP presence was shown in a range of canine tumors, and their link to tumor type and grade was demonstrated for the first time. This study will allow a substantially improved evaluation of veterinary cancer patients and provides baseline information necessary for the design of clinical trials targeting MMPs.
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Affiliation(s)
- P Loukopoulos
- School of Veterinary Science, The University of Queensland, Brisbane, Queensland 4072, Australia.
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31
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Abstract
The most common skin tumor in dogs is the mast cell tumor (MCT), with an incidence of close to 20% in the canine population. MCTs range from relatively benign to extremely aggressive, leading to metastasis and eventual death from systemic disease. Although surgical removal with or without radiation therapy may cure most patients with low-grade MCTs, there are no effective treatments for dogs with aggressive high-grade MCTs. This article reviews the current understanding of MCT biology with regard to diagnosis, staging, identification of prognostic indicators, and appropriate treatment planning.
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Affiliation(s)
- Cheryl A London
- Department of Surgical and Radiological Sciences, 2112 Tupper Hall, One Shields Avenue, University of California at Davis, Davis, CA 95616, USA.
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32
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Abstract
Canine and feline lymphoma is a common hematopoietic malignancy that generally responds well to systemic chemotherapy. In dogs, several recent investigations have underscored the beneficial effects of adjunctive radiation therapy for the treatment of multicentric lymphoma. With the emergence of effective immunotherapeutic agents against non-Hodgkin's lymphoma in people, some of these specific targeted immunotherapeutics may soon be a viable option for treating lymphoid malignancies in dogs. Although the effective and durable treatment of feline lymphoma remains disappointing, the identification of environmental etiologic factors may help to shape future recommendations for disease prevention. It is only reasonable to assume that as our fundamental understanding of lymphoid malignancies grows, better diagnostic tools, predictive markers, and therapeutic options will also emerge.
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Affiliation(s)
- Timothy M Fan
- Department of Veterinary Clinical Medicine, Veterinary Teaching Hospital, College of Veterinary Medicine, University of Illinois, 100 West Hazelwood Drive, Urbana, IL 61802, USA.
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