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Ipek E, Epikmen ET, Yildirim F, Ozsoy SY, Tunca R. Immunolabelling of SCF and c-KIT in canine perianal gland tumours. J Comp Pathol 2023; 200:51-58. [PMID: 36652776 DOI: 10.1016/j.jcpa.2022.11.007] [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: 07/24/2022] [Revised: 09/02/2022] [Accepted: 10/29/2022] [Indexed: 01/18/2023]
Abstract
c-KIT and its ligand stem cell factor (SCF) play a direct role in the oncogenesis of various cancers by regulating the cell fate. Recent evidence indicates that an increased expression of c-KIT/SCF, driven by hormonal imbalances, is an important step in the development of hormone-dependent cancers. We investigated the possible role of the c-KIT/SCF system in the carcinogenesis in 44 perianal gland tumours (16 adenomas, 15 epitheliomas and 13 carcinomas) and 10 normal perianal gland tissues by assessing the percentage and type of cells that expressed c-KIT and SCF as well as the cellular localization of immunoreactivity. No differences in immunolabelling of SCF were found between normal glands and neoplastic cells of any histotype. The highest expression of c-KIT was seen in carcinomas and a positive correlation was found between c-KIT labelling score and mitotic index (R = 0.876; P <0.01). c-KIT labelling patterns in hepatoid cells varied among the tumour histotypes with adenomas having only membranous labelling. Three labelling patterns (membranous only, membranous and cytosolic, and cytosolic only) were seen in the other tumour histotypes. Cytosolic labelling was statistically more frequent in carcinomas than in adenomas (P <0.001). These findings suggest that c-KIT expression and its cellular localization may play a role in the development and progression of perianal gland tumours by influencing cell proliferation.
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Affiliation(s)
- Emrah Ipek
- Department of Pathology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey.
| | - Erkmen T Epikmen
- Department of Pathology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| | - Funda Yildirim
- Department of Pathology, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sule Y Ozsoy
- Department of Pathology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| | - Recai Tunca
- Department of Pathology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
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İpek E, Epikmen ET, Tunca R. Immunolabelling of c-KIT and CAM5.2 in Canine Anal Sac Gland Adenocarcinoma. J Comp Pathol 2022; 198:56-61. [PMID: 36116891 DOI: 10.1016/j.jcpa.2022.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/20/2022] [Accepted: 07/30/2022] [Indexed: 11/29/2022]
Abstract
The role of c-KIT receptor in anal sac gland adenocarcinoma (ASGAC) is unclear despite its importance in the development of tumours. In this preliminary study, the expression of c-KIT was investigated in rarely observed canine ASGAC. The potential use of CAM5.2 in distinguishing ASGAC from perianal gland tumours was also evaluated. ASGAC was diagnosed in five out of 25 examined perianal tumours. By immunohistochemistry, cytosolic (abnormal) c-KIT expression was seen in four of the five cases. CAM5.2 immunoreactivity was detected in neoplastic cells of all ASGAC cases examined, whereas it was not evident in any case of perianal gland tumour. The findings suggest that c-KIT expression and its cellular localization may be important in the oncogenesis of ASGAC and CAM5.2 can be used to distinguish between ASGAC and perianal gland tumours.
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Affiliation(s)
- Emrah İpek
- Department of Pathology, Faculty of Veterinary Medicine, Aydın Adnan Menderes University, Aydın, Turkey.
| | - Erkmen T Epikmen
- Department of Pathology, Faculty of Veterinary Medicine, Aydın Adnan Menderes University, Aydın, Turkey
| | - Recai Tunca
- Department of Pathology, Faculty of Veterinary Medicine, Aydın Adnan Menderes University, Aydın, Turkey
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Alonso-Miguel D, Valdivia G, García-San José P, Alonso-Diez Á, Clares I, Portero M, Peña L, Pérez-Alenza MD. Clinical outcome of dogs diagnosed with canine inflammatory mammary cancer treated with metronomic cyclophosphamide, a cyclooxygenase-2 inhibitor and toceranib phosphate. Vet Comp Oncol 2021; 20:179-188. [PMID: 34390295 DOI: 10.1111/vco.12760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 08/12/2021] [Indexed: 12/14/2022]
Abstract
Canine inflammatory mammary cancer (IMC) is highly malignant, invasive and a therapeutic challenge, because effective medical treatment is still unavailable. This retrospective study compares the efficacy of an oral cyclooxygenase-2 (COX-2) inhibitor combined with toceranib phosphate and oral cyclophosphamide (multi-drug therapy [MT]) with COX-2 inhibitor therapy alone (single-drug therapy [ST]) in dogs diagnosed with secondary IMC. Clinical response, adverse events, overall survival time (OST), disease-free survival (DFS) and time to progression (TTP) were evaluated. Sixteen patients were included, eight received MT and eight receiving ST. Median OST was significantly higher in patients receiving MT (96.0 vs. 37.5 days; p = .046) and in patients with post-surgical rather than non-surgical IMC (86.5 vs. 41.5 days; p = .038). Additionally, median TTP was significantly higher in patients treated with MT (p = .010). In patients with non-surgical IMC, the clinical benefit (CB) was reached in 100% (n = 3) of patients receiving MT and in 33% (n = 1) of those receiving ST; the response duration was significantly longer in MT cases (p = .026). The absence of disease progression at day 30 of treatment was significantly associated with longer OST, DFS and TTP (p = .018, p = .002 and p < .001, respectively). Adverse events occurred more frequently in patients treated with MT compared with ST (p = .026). The MT protocol produced primarily mild to moderate toxicities, which were resolved with supportive care; therefore, the combination of drugs was adequately tolerated by most of the patients. The combination of toceranib, a COX-2 inhibitor and oral cyclophosphamide may be a protocol with potential therapeutic efficacy for dogs with IMC.
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Affiliation(s)
- Daniel Alonso-Miguel
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Guillermo Valdivia
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Paula García-San José
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Ángela Alonso-Diez
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Irene Clares
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Miriam Portero
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Laura Peña
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - Maria Dolores Pérez-Alenza
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
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Valdivia G, Alonso-Diez Á, Pérez-Alenza D, Peña L. From Conventional to Precision Therapy in Canine Mammary Cancer: A Comprehensive Review. Front Vet Sci 2021; 8:623800. [PMID: 33681329 PMCID: PMC7925635 DOI: 10.3389/fvets.2021.623800] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/11/2021] [Indexed: 12/16/2022] Open
Abstract
Canine mammary tumors (CMTs) are the most common neoplasm in intact female dogs. Canine mammary cancer (CMC) represents 50% of CMTs, and besides surgery, which is the elective treatment, additional targeted and non-targeted therapies could offer benefits in terms of survival to these patients. Also, CMC is considered a good spontaneous intermediate animal model for the research of human breast cancer (HBC), and therefore, the study of new treatments for CMC is a promising field in comparative oncology. Dogs with CMC have a comparable disease, an intact immune system, and a much shorter life span, which allows the achievement of results in a relatively short time. Besides conventional chemotherapy, innovative therapies have a large niche of opportunities. In this article, a comprehensive review of the current research in adjuvant therapies for CMC is conducted to gather available information and evaluate the perspectives. Firstly, updates are provided on the clinical-pathological approach and the use of conventional therapies, to delve later into precision therapies against therapeutic targets such as hormone receptors, tyrosine kinase receptors, p53 tumor suppressor gene, cyclooxygenases, the signaling pathways involved in epithelial-mesenchymal transition, and immunotherapy in different approaches. A comparison of the different investigations on targeted therapies in HBC is also carried out. In the last years, the increasing number of basic research studies of new promising therapeutic agents on CMC cell lines and CMC mouse xenografts is outstanding. As the main conclusion of this review, the lack of effort to bring the in vitro studies into the field of applied clinical research emerges. There is a great need for well-planned large prospective randomized clinical trials in dogs with CMC to obtain valid results for both species, humans and dogs, on the use of new therapies. Following the One Health concept, human and veterinary oncology will have to join forces to take advantage of both the economic and technological resources that are invested in HBC research, together with the innumerable advantages of dogs with CMC as a spontaneous animal model.
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Affiliation(s)
- Guillermo Valdivia
- Department Animal Medicine, Surgery and Pathology, Veterinary School, Complutense University of Madrid, Madrid, Spain
- Mammary Oncology Unit, Complutense Veterinary Teaching Hospital, Complutense University of Madrid, Madrid, Spain
| | - Ángela Alonso-Diez
- Department Animal Medicine, Surgery and Pathology, Veterinary School, Complutense University of Madrid, Madrid, Spain
- Mammary Oncology Unit, Complutense Veterinary Teaching Hospital, Complutense University of Madrid, Madrid, Spain
| | - Dolores Pérez-Alenza
- Department Animal Medicine, Surgery and Pathology, Veterinary School, Complutense University of Madrid, Madrid, Spain
- Mammary Oncology Unit, Complutense Veterinary Teaching Hospital, Complutense University of Madrid, Madrid, Spain
| | - Laura Peña
- Department Animal Medicine, Surgery and Pathology, Veterinary School, Complutense University of Madrid, Madrid, Spain
- Mammary Oncology Unit, Complutense Veterinary Teaching Hospital, Complutense University of Madrid, Madrid, Spain
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Seung BJ, Cho SH, Kim SH, Bae MK, Lim HY, Sur JH. In situ c-KIT mRNA quantification of canine cutaneous mast cell tumours and its relationship to prognostic factors. Vet Comp Oncol 2020; 19:132-139. [PMID: 32926564 DOI: 10.1111/vco.12650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 09/01/2020] [Accepted: 09/01/2020] [Indexed: 12/18/2022]
Abstract
Cutaneous mast cell tumours (MCTs) are the most frequent malignant skin tumours in dogs. Mutations in the c-KIT proto-oncogene are correlated with the pathogenesis and aggressiveness of MCTs. To date, studies have focused on c-KIT mutations and KIT protein localization, with a general lack of mRNA-level analyses. In this study, c-KIT mRNA expression was investigated in canine MCTs by RNA in situ hybridization (RNA-ISH). Furthermore, we evaluated associations between c-KIT mRNA expression and the histological grade, KIT immunohistochemical staining pattern and other clinicopathological parameters. c-KIT mRNA expression was observed in all MCT samples, appearing as clusters of dots in the cytoplasm of neoplastic cells. A significant correlation was detected between c-KIT mRNA expression (quantified according to the H-score and the percentage of positive cells) and the histological grade (determined using two-and three-tier grading systems; P < .05). We also found a significant positive correlation (all P < .05) between c-KIT mRNA expression and the proliferation indices (mitotic index, Ki-67, and Ag67). However, no significant associations with c-KIT expression from RNA-ISH were found with respect to different KIT staining patterns. Overall, these results demonstrate that c-KIT mRNA expression might be an additional tool for measuring the c-KIT status in canine cutaneous MCTs and could serve as a potential prognostic factor. Further studies should evaluate the prognostic significance of c-KIT mRNA expression in a large and uniform cohort of canine MCTs.
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Affiliation(s)
- Byung-Joon Seung
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Seung-Hee Cho
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Soo-Hyeon Kim
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Min-Kyung Bae
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Ha-Young Lim
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Jung-Hyang Sur
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
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Aceves JL, López RV, Terán PM, Escobedo CM, Marroquín Muciño MA, Castillo GG, Estrada MM, García FR, Quiroz GD, Montaño Estrada LF. Autologous CXCR4+ Hematopoietic Stem Cells Injected into the Scar Tissue of Chronic Myocardial Infarction Patients Normalizes Tissue Contractility and Perfusion. Arch Med Res 2020; 51:135-144. [PMID: 32113784 DOI: 10.1016/j.arcmed.2019.12.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 12/05/2019] [Accepted: 12/17/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Chronic myocardial infarction (CMI), represents a public health and a financial burden. Since stem cell transplant is used to regenerate cardiac tissue after acute myocardial infarction. AIM OF THE STUDY To determine if autologous CXCR4 stem cells could restore damaged myocardial tissue in patients with CMI lesions. METHODS 20 NYHA grade III male patients with CMI defined by clinical, biochemical, ECG and echocardiographic parameters were included. Patients were treated with G-CSF for 6 d before isolating their autologous stem cells from PBMCs. Cell phenotyping was done by cytofluorometry using monoclonal antibodies (anti-CXCR4, -CD34, -48, -117, -133, -Ki67, -SDF1 and CXCR4); CXCR4 cell subpopulations isolated by sorting were adjusted to 1 × 108 cells by subpopulation and injected in a circular pattern into the cicatrix previously defined by echocardiography. RESULTS Patients were followed for 6 and 12 months. Six months after cell implant improvements in left ventricle ejection fraction (from 33-50%), stress rate values (from -3/-9% to -18/-22%), stress tests (from 4-12 METS), and the quantity of left ventricle affected segments (3-9) disappeared according to the G-SPECT images. 12 months evaluations did not show significant differences. Interestingly, 3 months after cell implant the ECG showed normal electrical activity in 9 patients whereas after 6 months it was normal in all the patients. CONCLUSIONS These results ratify that locally injected autologous CXCR4+ bone marrow-derived stem cells have a physiological and a clinical impact in patients with CMI.
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Affiliation(s)
- José Luis Aceves
- Departamento de Cirugía Cardiotorácica, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico.
| | - Rafael Vilchis López
- Departamento de Cirugía Cardiotorácica, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Paúl Mondragón Terán
- Laboratorio de Medicina Regenerativa e Ingeniería de Tejidos, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Carmen Martínez Escobedo
- Departamento de Cardiología Nuclear, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Mario A Marroquín Muciño
- Laboratorio de Medicina Regenerativa e Ingeniería de Tejidos, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Guillermo García Castillo
- Laboratorio de Medicina Regenerativa e Ingeniería de Tejidos, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Miriam Marmolejo Estrada
- Unidad de Aféresis, Banco de Sangre, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Fernando Rodríguez García
- Unidad de Aféresis, Banco de Sangre, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Guillermo Díaz Quiroz
- Departamento de Cirugía Cardiotorácica, Centro Médico Nacional 20 de noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México, Mexico
| | - Luis Felipe Montaño Estrada
- Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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Chen YC, Liao JW, Chang SC, Hsu WL. Expression frequency of c-kit isoforms and its prognostic potential in canine mammary tumours. Vet Comp Oncol 2019; 18:303-314. [PMID: 31652393 DOI: 10.1111/vco.12549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/05/2019] [Accepted: 10/21/2019] [Indexed: 12/28/2022]
Abstract
KIT is a tyrosine kinase receptor involved in carcinogenesis. Two alternatively spliced transcripts, differed from presence of four amino acids (GNSK) at exon 9 of c-kit, were identified in various human tumours and canine hemangiosarcoma (HSA). The biological function and clinical implications of these isoforms have not yet been elucidated in canine tumours. The current study aimed to validate the expression profile and ultimately to evaluate the correlation of c-kit isoform levels with clinicopathological factors of canine mammary tumours (CMTs). In total, the expression profiles of c-kit isoforms in 196 samples obtained from normal mammary glands (NMGs) of healthy controls and dogs with CMTs, benign and malignant CMTs, and HSAs were determined by polymerase chain reaction (PCR) and quantified via real-time PCR. Overall, the expression levels of the two isoforms were equivalent in NMGs, whereas the GNSK- /GNSK+ ratio sharply increased to 7.44- and 8.33-fold, indicating abundant GNSK- isoforms in benign and malignant CMTs, respectively. However, a significant decrease in GNSK- expression was detected in dogs with high-grade malignant CMTs (mCMTs) and with metastatic CMTs compared with expression in those with a lower grade and non-metastatic CMTs. In addition, the median survival time was shorter in mCMT canines with a lower GNSK- /GNSK+ ratio than that in mCMT canines with a higher ratio (899 days vs 1534 days). In conclusion, two c-kit isoforms are ubiquitously expressed with great variability in HSAs and CMTs with both benign and malignant status. The GNSK- /GNSK+ ratio could serve as a prognostic indicator for dogs with mCMTs.
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Affiliation(s)
- Yi-Chen Chen
- Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Jiunn-Wang Liao
- Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Shih-Chieh Chang
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan.,Veterinary Medical Teaching Hospital, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Wei-Li Hsu
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
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Dos Anjos DS, Vital AF, Lainetti PDF, Leis-Filho AF, Dalmolin F, Elias F, Calazans SG, Fonseca-Alves CE. Deregulation of VEGFR-2 and PDGFR Expression and Microvascular Density in a Triple-Negative Model of Canine Malignant Mammary Tumors with Lymph Node or Lung Metastasis. Vet Sci 2019; 6:vetsci6010003. [PMID: 30634402 PMCID: PMC6466043 DOI: 10.3390/vetsci6010003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 01/02/2019] [Accepted: 01/03/2019] [Indexed: 12/24/2022] Open
Abstract
Canine mammary tumors (CMT) represent the most common cancer in noncastrated female dogs. Interestingly, triple-negative tumors are the most common molecular subtype in female dogs. In this study, we proposed to evaluate the expression of vascular endothelial growth factor receptor 2 (VEGFR-2), Platelet-derived growth factor receptor (PDGFR), and microvascular density (MVD) in a group of metastatic and nonmetastatic triple-negative CMT and compare the expression based on clinical parameters. Twenty-six female dogs with triple-negative mammary tumors were divided into three groups: nonmetastatic tumors (NMT) (n = 11), tumors with lymph node metastasis (LNM) (n = 10), and tumors with lung metastasis (LM) (n = 5). We observed increased VEGFR-2 expression in LNM compared with NMT and a positive correlation between tumor grade and VEGFR-2 expression. A positive correlation was noted between VEGFR-2 and PDGFR expression. Regarding microvascular density (MVD), we identified a higher number of vessels in primary tumors with lymph node metastasis and lung metastasis compared with tumors with no metastasis. The primary tumors with lung metastasis exhibited an increased MVD compared with carcinoma with lymph node metastasis. Overall, our results suggest a deregulation of VEGFR-2 and PDGFR and high MVD in metastatic tumors, indicating a role for angiogenesis in tumor progression.
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Affiliation(s)
- Denner Santos Dos Anjos
- Veterinary Science Graduate Program, University of Franca (UNIFRAN), Franca 14404-600, Brazil.
| | - Aline Fernandes Vital
- Veterinary Science Graduate Program, University of Franca (UNIFRAN), Franca 14404-600, Brazil.
| | - Patrícia de Faria Lainetti
- Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, São Paulo State University-UNESP, Botucatu 18618-681, Brazil.
| | - Antonio Fernando Leis-Filho
- Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, São Paulo State University-UNESP, Botucatu 18618-681, Brazil.
| | - Fabiola Dalmolin
- Superintendencia Unidade Hospitalar Veterinaria Universitaria, Federal University of the Fronteira Sul, Realeza 85770-000, Brazil.
| | - Fabiana Elias
- Superintendencia Unidade Hospitalar Veterinaria Universitaria, Federal University of the Fronteira Sul, Realeza 85770-000, Brazil.
| | | | - Carlos Eduardo Fonseca-Alves
- Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, São Paulo State University-UNESP, Botucatu 18618-681, Brazil.
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Gattino F, Maniscalco L, Iussich S, Biasato I, Martano M, Morello E, Gola C, Millán Ruiz Y, Saeki N, Buracco P, Martín de las Mulas J, De Maria R. PDGFR-α, PDGFR-β, VEGFR-2 and CD117 expression in canine mammary tumours and evaluation of the in vitro effects of toceranib phosphate in neoplastic mammary cell lines. Vet Rec 2018; 183:221. [DOI: 10.1136/vr.104414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 08/21/2017] [Accepted: 10/04/2017] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Selina Iussich
- Department of Veterinary Sciences; University of Turin; Turin Italy
| | - Ilaria Biasato
- Department of Veterinary Sciences; University of Turin; Turin Italy
| | - Marina Martano
- Department of Veterinary Sciences; University of Turin; Turin Italy
| | - Emanuela Morello
- Department of Veterinary Sciences; University of Turin; Turin Italy
| | - Cecilia Gola
- Department of Veterinary Sciences; University of Turin; Turin Italy
| | - Yolanda Millán Ruiz
- Department of Comparative Pathology, Veterinary Medicine Faculty; University of Córdoba; Córdoba Spain
| | - Nobuo Saeki
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo; Tokyo Japan
| | - Paolo Buracco
- Department of Veterinary Sciences; University of Turin; Turin Italy
| | - Juana Martín de las Mulas
- Department of Comparative Pathology, Veterinary Medicine Faculty; University of Córdoba; Córdoba Spain
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Fonseca-Alves CE, Kobayashi PE, Palmieri C, Laufer-Amorim R. Investigation of c-KIT and Ki67 expression in normal, preneoplastic and neoplastic canine prostate. BMC Vet Res 2017; 13:380. [PMID: 29207991 PMCID: PMC5718037 DOI: 10.1186/s12917-017-1304-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 11/27/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND c-KIT expression has been related to bone metastasis in human prostate cancer, but whether c-KIT expression can be similarly classified in canine prostatic tissue is unknown. This study assessed c-KIT and Ki67 expression in canine prostate cancer (PC). c-KIT gene and protein expression and Ki67 expression were evaluated in forty-four canine prostatic tissues by immunohistochemistry, RT-qPCR and western blot. Additionally, we have investigated c-KIT protein expression by immunoblotting in two primary canine prostate cancer cell lines. RESULTS Eleven normal prostates, 12 proliferative inflammatory atrophy (PIA) prostates, 18 PC, 3 metastatic lesions and two prostate cancer cell cultures (PC1 and PC2) were analysed. The prostatic tissue exhibited varying degrees of membranous, cytoplasmic or membranous/cytoplasmic c-KIT staining. Four normal prostates, 4 PIA and 5 prostatic carcinomas showed positive c-KIT expression. No c-KIT immunoexpression was observed in metastases. Canine prostate cancer and PIA samples contained a higher number of Ki67-positive cells compared to normal samples. The median relative quantification (RQ) for c-KIT expression in normal, PIA and prostate cancer and metastatic samples were 0.6 (0.1-2.5), 0.7 (0.09-2.1), 0.7 (0.09-5.1) and 0.1 (0.07-0.6), respectively. A positive correlation between the number of Ki67-positive cells and c-KIT transcript levels was observed in prostate cancer samples. In the cell line, PC1 was negative for c-KIT protein expression, while PC2 was weakly positive. CONCLUSION The present study identified a strong correlation between c-KIT expression and proliferative index, suggesting that c-KIT may influence cell proliferation. Therefore, c-KIT heterogeneous protein expression among the samples (five positive and thirteen negative prostate cancer samples) indicates a personalized approach for canine prostate cancer.
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Affiliation(s)
- Carlos Eduardo Fonseca-Alves
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista - UNESP, Rua Professor Dr Walter Maurício Correa, s/n, Unesp/Campus de Botucatu, Mail box- 560, Botucatu, SP, 18618-681, Brazil
| | - Priscilla Emiko Kobayashi
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista - UNESP, Rua Professor Dr Walter Maurício Correa, s/n, Unesp/Campus de Botucatu, Mail box- 560, Botucatu, SP, 18618-681, Brazil
| | - Chiara Palmieri
- School of Veterinary Science, The University of Queensland, Gatton Campus, Gatton, Queensland, Australia
| | - Renée Laufer-Amorim
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista - UNESP, Rua Professor Dr Walter Maurício Correa, s/n, Unesp/Campus de Botucatu, Mail box- 560, Botucatu, SP, 18618-681, Brazil.
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Intratumoral CD3+ T-lymphocytes immunoexpression and its association with c-Kit, angiogenesis, and overall survival in malignant canine mammary tumors. Anal Cell Pathol (Amst) 2015; 2015:920409. [PMID: 26346272 PMCID: PMC4540957 DOI: 10.1155/2015/920409] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 07/09/2015] [Indexed: 01/27/2023] Open
Abstract
In this study 80 malignant CMT were submitted to immunohistochemical detection of CD3, c-kit, VEGF, and CD31, together with clinicopathological parameters of tumor aggressiveness. CD3+ T-cells and c-kit overexpression revealed a positive correlation with VEGF (r = 0.503, P < 0.0001; r = 0.284, P = 0.023 for CD3 and c-kit, resp.) and CD31 (r = 0.654, P < 0.0001; r = 0.365, P = 0.003 for CD3 and c-kit, resp.). A significant association (P = 0.039) and a positive correlation (r = 0.263, P = 0.039) between CD3 and c-kit were also observed. High CD3/VEGF, c-kit/VEGF, and CD3/c-kit tumors were associated with elevated grade of malignancy (P < 0.0001 for all groups), presence of intravascular emboli (P < 0.0001 for CD3/VEGF and CD3/c-kit; P = 0.002 for c-kit/VEGF), and presence of lymph node metastasis (P < 0.0001 for all groups). Tumors with high CD3/VEGF (P = 0.006), c-kit/VEGF (P < 0.0001), and CD3/c-kit (P = 0.002) were associated with poor prognosis. Interestingly high c-kit/VEGF tumors retained their significance by multivariate analysis arising as independent prognostic factor.
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Bonkobara M. Dysregulation of tyrosine kinases and use of imatinib in small animal practice. Vet J 2015; 205:180-8. [DOI: 10.1016/j.tvjl.2014.12.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Revised: 12/01/2014] [Accepted: 12/16/2014] [Indexed: 12/18/2022]
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