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Parisi F, Millanta F, Nicastro M, Vannozzi I, Poli A. Confirmation of the Prognostic Value of Foxp3+ Cells in Canine Mammary Tumors. Animals (Basel) 2023; 13:ani13030505. [PMID: 36766393 PMCID: PMC9913641 DOI: 10.3390/ani13030505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/23/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Foxp3+ cell counts were evaluated by immunohistochemistry in 59 canine mammary tumors, 20 adenomas, and 39 carcinomas in three different compartments: intratumoral, within the adjacent stroma, and in the distant stroma. Foxp3+ lymphocyte counts were compared with histotype, grading, presence of lymphatic invasion, immunohistochemical expression of estrogen and progesterone receptors, expression of c-erbB-2, and the overall survival (OS). Our findings confirmed that Foxp3+ cells were significantly higher in canine mammary carcinomas compared to adenomas. A significantly higher number of Foxp3+ cells were detected in grade III carcinomas compared to grade II carcinomas, as well as in tumors with lymphatic invasion and loss of ER-expression. Finally, a high number of Foxp3+ cells was associated with poor prognosis. In conclusion, our findings highlighted the association of Foxp3+ lymphocytes with negative clinicopathological features and shorter overall survival (OS), thus confirming the role of Tregs as a negative prognostic marker in canine mammary carcinomas.
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HER2 Overexpression and Cytogenetical Patterns in Canine Mammary Carcinomas. Vet Sci 2022; 9:vetsci9110583. [DOI: 10.3390/vetsci9110583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/14/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
Human epidermal growth factor receptor 2 (HER2) is a tyrosine kinase receptor that promotes tumor cell growth and is implicated in the pathogenesis of human breast cancer. The role of HER2 in canine mammary carcinomas (CMCs) is not clear. Therefore, this study aimed to examine the protein expression and cytogenetic changes of HER2 and their correlation with other clinical–pathological parameters in CMC. We retrospectively selected 112 CMCs. HER2, ER, and Ki67 were assessed by immunohistochemistry. HER2 antibody validation was investigated by immunoblot on mammary tumor cell lines. Fluorescence in situ hybridization (FISH) was performed with probes for HER2 and CRYBA1 (control gene present on CFA9). HER2 protein overexpression was detected in 15 carcinomas (13.5%). A total of 90 carcinomas were considered technically adequate by FISH, and 8 out of 90 CMC (10%) were HER2 amplified, 3 of which showed a cluster-type pattern. HER2 overexpression was correlated with an increased number of HER2 gene copies (p = 0.01; R = 0.24) and overall survival (p = 0.03), but no correlation with ER, Ki67, grade, metastases, and tumor-specific survival was found. Surprisingly, co-amplification or polysomy was identified in three tumors, characterized by an increased copy number of both HER2 and CRYBA1. A morphological translocation-fusion pattern was recognized in 20 carcinomas (22%), with a co-localized signal of HER2 and CRYBA1. HER2 is not associated with clinical–pathological parameters of increased malignancy in canine mammary tumors, but it is suitable for studying different amplification patterns.
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Comparative Evaluation of Tumor-Infiltrating Lymphocytes in Companion Animals: Immuno-Oncology as a Relevant Translational Model for Cancer Therapy. Cancers (Basel) 2022; 14:cancers14205008. [PMID: 36291791 PMCID: PMC9599753 DOI: 10.3390/cancers14205008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/04/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Laboratory experiments studying solid tumors are limited by the inability to adequately model the tumor microenvironment and important immune interactions. Immune cells that infiltrate the tumor bed or periphery have been documented as reliable biomarkers in human studies. Veterinary oncology provides a naturally occurring cancer model that could complement biomarker discovery, clinical trials, and drug development. Abstract Despite the important role of preclinical experiments to characterize tumor biology and molecular pathways, there are ongoing challenges to model the tumor microenvironment, specifically the dynamic interactions between tumor cells and immune infiltrates. Comprehensive models of host-tumor immune interactions will enhance the development of emerging treatment strategies, such as immunotherapies. Although in vitro and murine models are important for the early modelling of cancer and treatment-response mechanisms, comparative research studies involving veterinary oncology may bridge the translational pathway to human studies. The natural progression of several malignancies in animals exhibits similar pathogenesis to human cancers, and previous studies have shown a relevant and evaluable immune system. Veterinary oncologists working alongside oncologists and cancer researchers have the potential to advance discovery. Understanding the host-tumor-immune interactions can accelerate drug and biomarker discovery in a clinically relevant setting. This review presents discoveries in comparative immuno-oncology and implications to cancer therapy.
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Soares M, Correia J, Nascimento C, Ferreira F. Anaplastic Mammary Carcinoma in Cat. Vet Sci 2021; 8:vetsci8050077. [PMID: 34064434 PMCID: PMC8147828 DOI: 10.3390/vetsci8050077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 12/05/2022] Open
Abstract
Clinical, pathological, and immunohistochemical findings related to a feline mammary tumor with similar features to canine anaplastic mammary carcinoma are herein described for the first time. A female cat was presented for clinical evaluation with gastrointestinal signs, oedema, erythema, and painful lesion in the right inguinal region. Three weeks later, the mass had doubled in size and radiographic revaluation of the thoracic cavity revealed a metastatic pattern. Due to the poor prognosis and decline of the clinical status the owners decided for euthanasia. Post-mortem examination exposed a mammary tumoral mass with subcutaneous oedema, an enlargement of the right inguinal lymph node, and nodules in several organs. Histological analysis confirmed the presence of large pleomorphic epithelial cells, often grouped in small clusters with bizarre nuclei. Immunohistochemical study of the different lesions was performed and both primary tumor and regional metastasis showed tumor cells to be negative estrogen receptor alpha, positive progesterone receptor, positive HER-2, and positive pan-cytokeratin. Given that the clinical history was compatible with an inflammatory mammary carcinoma, the cyclooxygenase-2 expression levels were evaluated and presented a weak immunoreactivity. Regarding the distant metastatic lesions, tumor cells were negative for ER-α and PR and, positive both for HER-2 and pan-cytokeratin.
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Levi M, Muscatello LV, Brunetti B, Benazzi C, Parenti F, Gobbo F, Avallone G, Bacci B, Zambon E, Valenti P, Sarli G. High Intrinsic Expression of P-glycoprotein and Breast Cancer Resistance Protein in Canine Mammary Carcinomas Regardless of Immunophenotype and Outcome. Animals (Basel) 2021; 11:ani11030658. [PMID: 33801360 PMCID: PMC8001331 DOI: 10.3390/ani11030658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/14/2021] [Accepted: 02/22/2021] [Indexed: 11/16/2022] Open
Abstract
P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP) are major actors in multidrug resistance (MDR) phenomenon in both human and canine mammary carcinomas (CMCs). The aim of this study was to investigate an association between the intrinsic expression of P-gp and BCRP compared to the immunophenotypes and outcome in CMCs. Fifty CMCs were evaluated at immunohistochemistry (IHC) for P-gp, BCRP, Estrogen receptor alpha (ER), Progesterone receptors (PR), Human Epidermal Growth Factor Receptor type 2 (HER2), basal cytokeratins 5/6 (CK5/6), Epidermal Growth Factor Receptor 1 (EGFR), and Ki67 proliferation index. P-gp and BCRP positive cases were, respectively, 52% and 74.5%, with a significantly higher expression of BCRP than P-gp. Five immunophenotypes were defined in 37 out of 50 CMCs: 9 (24.3%) Luminal A, 5 (13.5%) Luminal B, 9 (24.3%) HER2 overexpressing, 9 (24.3%) Triple-negative basal-like, and 5 (13.5%) Triple-negative non-basal-like. In all CMCs at least one marker was expressed. Follow-up data were available for 25 animals. The average cancer-specific survival was 739 ± 444 days. A number of CMCs bear a high expression of P-gp and BCRP but no significant association was found between their expression and the immunophenotypes, Ki67 index, the histological grade, and tumor-related death.
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Affiliation(s)
- Michela Levi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Luisa Vera Muscatello
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Barbara Brunetti
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Cinzia Benazzi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Federico Parenti
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Francesca Gobbo
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Giancarlo Avallone
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Barbara Bacci
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
| | - Elisa Zambon
- Ospedale Veterinario, I Portoni Rossi, Zola Predosa, 40069 Bologna, Italy;
| | - Paola Valenti
- Clinica Veterinaria Malpensa, Samarate, 21017 Varese, Italy;
| | - Giuseppe Sarli
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (L.V.M.); (B.B.); (C.B.); (F.P.); (F.G.); (G.A.); (B.B.)
- Correspondence: ; Tel.: +39-051-20-9-795
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Muscatello LV, Papa V, Millanta F, Sarli G, Bacci B, Cenacchi G, Poli A, Giudice C, Brunetti B. Canine Mammary Carcinoma With Vacuolated Cytoplasm: Glycogen-Rich Carcinoma, a Histological Type Distinct From Lipid-Rich Carcinoma. Vet Pathol 2020; 58:63-70. [PMID: 33205712 DOI: 10.1177/0300985820969962] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Lipid-rich carcinoma is a rare histotype of canine mammary tumors with cytoplasmic vacuolation. In humans, glycogen-rich carcinoma, secretory carcinoma, and myoepithelial neoplasms are included in the differential diagnosis for lipid-rich carcinoma. The aim of the study was to investigate the existence of histotypes other than lipid-rich in canine mammary carcinomas with vacuolated cytoplasm using a diagnostic algorithm based on histopathology, histochemistry, immunohistochemistry, and ultrastructure and to evaluate the molecular phenotype of these neoplasms. Ten mammary carcinomas were collected, histologically reviewed, and subjected to histochemistry (PAS, PAS with diastase, Alcian blue, Sudan III [1 case], and Congo red [1 case]); immunohistochemistry for CK19, CK5/6, CK14, p63, calponin, vimentin, ER, PR, and HER2; and transmission electron microscopy (TEM). Cytokeratin immunolabeling demonstrated the epithelial origin of all tumors. Sudan III and TEM confirmed the diagnosis of lipid-rich carcinoma in 8 tumors (one amyloid-producing). One tumor was reclassified as a glycogen-rich carcinoma based on PAS reactivity that was diastase-labile, and a second tumor was reclassified as a carcinoma-and-malignant myoepithelioma based on the differentiation markers. Lipid-rich carcinomas were basal-like (5/8), null-type (2/8), and luminal A phenotype (1/8). The glycogen-rich carcinoma was basal-like, while the carcinoma-and-malignant myoepithelioma was luminal A. Vacuolated morphology of neoplastic cells in canine mammary carcinoma can indicate either a neoplasm of luminal epithelial origin with cytoplasmic lipid or glycogen, or vacuolated neoplastic suprabasal myoepithelial cells. Glycogen-rich carcinoma is a novel histological type that should be considered in the differential diagnosis for canine mammary carcinomas with vacuolated cytoplasm.
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Sammarco A, Finesso G, Zanetti R, Ferro S, Rasotto R, Caliari D, Goldschmidt MH, Orvieto E, Castagnaro M, Cavicchioli L, Zappulli V. Biphasic Feline Mammary Carcinomas Including Carcinoma and Malignant Myoepithelioma. Vet Pathol 2020; 57:377-387. [PMID: 32100640 DOI: 10.1177/0300985820908792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Feline mammary tumors are usually malignant and aggressive carcinomas. Most cases are simple monophasic carcinomas (1 epithelial population), and additional phenotyping is usually not needed. In this study, we describe 10 malignant mammary tumors from 9 female cats that had unusual histomorphology: they appeared biphasic, with 2 distinct cell populations. Initially, they were morphologically diagnosed as either carcinosarcoma (1/10) or malignant pleomorphic tumor (9/10) of the mammary gland, as the latter did not match any previously described histological subtype. Immunohistochemistry (IHC) was performed for pancytokeratin, cytokeratins 8 and 18, cytokeratin 14, cytokeratins 5 and 6, vimentin, p63, calponin, alpha-smooth muscle actin, Ki-67, ERBB2, estrogen receptor alpha, and progesterone receptor. In 7 of 10 cases, the biphasic nature was confirmed and, on the basis of the IHC results, they were classified as carcinoma and malignant myoepithelioma (4/10), ductal carcinoma (1/10), and carcinosarcoma (2/10). The other 3 of 10 cases were monophasic based on IHC. In the cases of carcinoma and malignant myoepithelioma, the malignant myoepithelial cells were 100% positive for vimentin (4/4) and variably positive for p63, calponin, and cytokeratins (4/4). These findings show that, although rare, biphasic mammary carcinomas do occur in cats. In dogs and humans, tumors composed of malignant epithelial and myoepithelial cells have a less aggressive behavior than certain simple carcinomas, and therefore, their identification might also be clinically significant in the cat.
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Affiliation(s)
- Alessandro Sammarco
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università, Legnaro, Padua, Italy
| | - Giovanni Finesso
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università, Legnaro, Padua, Italy
- National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Rossella Zanetti
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università, Legnaro, Padua, Italy
| | - Silvia Ferro
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università, Legnaro, Padua, Italy
| | | | | | - Michael H Goldschmidt
- Laboratory of Pathology and Toxicology, Department of Pathobiology, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, PA, USA
| | - Enrico Orvieto
- Pathology Department ULSS5 Polesana, Viale Tre Martiri, Rovigo, Italy
| | - Massimo Castagnaro
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università, Legnaro, Padua, Italy
| | - Laura Cavicchioli
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università, Legnaro, Padua, Italy
| | - Valentina Zappulli
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università, Legnaro, Padua, Italy
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da Rocha AA, Carvalheira J, Gärtner F. α-catenin, β-catenin and P-120-catenin immunoexpression in canine mammary tissues and their relationship with E-cadherin. Res Vet Sci 2020; 130:197-202. [PMID: 32200159 DOI: 10.1016/j.rvsc.2020.03.002] [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: 03/08/2019] [Revised: 01/23/2020] [Accepted: 03/02/2020] [Indexed: 02/06/2023]
Abstract
Mammary tumors represent the second most common neoplasia in the canine species, where more than 50% of the cases are classified as malignant. The histological classification is used as a prognostic tool. Cadherins and catenins are responsible for cell adhesion and are intrinsic connected with the process of metastasis. E-cadherin expression in canine mammary tissues have been extensively studied. However, the studies with catenins are still scarce in the canine species. This study evaluated 74 canine mammary tissues by assessing the expression of E-cadherin and α, β and P-120 catenin molecules using the immunohistochemistry technique and their relationship with clinicopathological parameters. Three patterns of expression were identified in this study: membranous, cytoplasmic and both (membranous and cytoplasmic). In benign tumors, more than 80% of the cases had preserved expression and in malignant tumors 20% of the cases had reduced expression. A correlation between E-cadherin and P-120-catenin expression was found as well as a significant relationship between the histological type and the expression of α-catenin in malignant tumors.
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Affiliation(s)
- Aline Alvarenga da Rocha
- Institute of Biomedical Science Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Júlio Carvalheira
- Institute of Biomedical Science Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; Research Centre for Biodiversity and Genetic Resources, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal.
| | - Fátima Gärtner
- Institute of Biomedical Science Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; IPATIMUP, Institute of Molecular Pathology and Immunology of the University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal; i3S, University of Porto, i3S, Instituto de Investigação e Inovação, Rua Alfredo Allen 208, 4200-135 Porto, Portugal.
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TiHo-0906: a new feline mammary cancer cell line with molecular, morphological, and immunocytological characteristics of epithelial to mesenchymal transition. Sci Rep 2018; 8:13231. [PMID: 30185896 PMCID: PMC6125410 DOI: 10.1038/s41598-018-31682-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/21/2018] [Indexed: 02/06/2023] Open
Abstract
Feline mammary carcinomas (FMCs) with anaplastic and malignant spindle cells histologically resemble the human metaplastic breast carcinoma (hMBC), spindle-cell subtype. hMBCs display epithelial-to-mesenchymal transition (EMT) characteristics. Herein we report the establishment and characterization of a cell line (TiHoCMglAdcar0906; TiHo-0906) exhibiting EMT-like properties derived from an FMC with anaplastic and malignant spindle cells. Copy-number variations (CNVs) by next-generation sequencing and immunohistochemical characteristics of the cell line and the tumour were compared. The absolute qPCR expression of EMT-related markers HMGA2 and CD44 was determined. The growth, migration, and sensitivity to doxorubicin were assessed. TiHo-0906 CNVs affect several genomic regions harbouring known EMT-, breast cancer-, and hMBCs-associated genes as AKT1, GATA3, CCND2, CDK4, ZEB1, KRAS, HMGA2, ESRP1, MTDH, YWHAZ, and MYC. Most of them were located in amplified regions of feline chromosomes (FCAs) B4 and F2. TiHo-0906 cells displayed an epithelial/mesenchymal phenotype, and high HMGA2 and CD44 expression. Growth and migration remained comparable during subculturing. Low-passaged cells were two-fold more resistant to doxorubicin than high-passaged cells (IC50: 99.97 nM, and 41.22 nM, respectively). The TiHo-0906 cell line was derived from a poorly differentiated cellular subpopulation of the tumour consistently displaying EMT traits. The cell line presents excellent opportunities for studying EMT on FMCs.
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Nguyen F, Peña L, Ibisch C, Loussouarn D, Gama A, Rieder N, Belousov A, Campone M, Abadie J. Canine invasive mammary carcinomas as models of human breast cancer. Part 1: natural history and prognostic factors. Breast Cancer Res Treat 2017; 167:635-648. [PMID: 29086231 PMCID: PMC5807494 DOI: 10.1007/s10549-017-4548-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 10/16/2017] [Indexed: 11/30/2022]
Abstract
Purpose Dogs have been proposed as spontaneous animal models of human breast cancer, based on clinicopathologic similarities between canine and human mammary carcinomas. We hypothesized that a better knowledge of the natural history and prognostic factors of canine invasive mammary carcinomas would favor the design of preclinical trials using dogs as models of breast cancer. Methods The 2-year outcome of 350 female dogs with spontaneous invasive mammary carcinoma was studied. The investigated prognostic factors included age at diagnosis, pathologic tumor size, pathologic nodal stage, lymphovascular invasion, histological grade, and expression of Estrogen Receptor alpha (ERα), Progesterone Receptor, Ki-67, Human Epidermal Growth Factor Receptor 2, basal cytokeratins 5/6, and Epidermal Growth Factor Receptor. Multivariate survival analyses were performed using the Cox proportional hazards model. Results The overall survival after mastectomy was 11 months. Within 1 year post mastectomy, 41.5% of dogs (145/350) died from their mammary carcinoma. By multivariate analysis, the significant prognostic factors for overall survival included a pathologic tumor size larger than 20 mm [HR 1.47 (95% confidence interval 1.15–1.89)], a positive nodal stage [pN+, HR 1.89 (1.43–2.48)], a histological grade III [HR 1.32 (1.02–1.69)], ERα negativity [HR 1.39 (1.01–1.89)], a high Ki-67 proliferation index [HR 1.32 (1.04–1.67)], and EGFR absence [HR 1.33 (1.04–1.69)]. Conclusion The short natural history of spontaneous canine invasive mammary carcinomas and high rate of cancer-related death allow for rapid termination of preclinical investigations. The prognostic factors of invasive mammary carcinomas are remarkably similar in dogs and humans, highlighting the similarities in cancer biology between both species.
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Affiliation(s)
- Frédérique Nguyen
- Oniris, Nantes Atlantic College of Veterinary Medicine Food Science and Engineering, Animal Cancers, Models for Research in Comparative Oncology (AMaROC) Research Unit, Site de La Chantrerie, 102 Route de Gachet, CS40706, 44307, Nantes, France. .,CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.
| | - Laura Peña
- Department of Animal Medicine, Surgery and Pathology, Complutense University of Madrid, Madrid, Spain
| | - Catherine Ibisch
- Oniris, Nantes Atlantic College of Veterinary Medicine Food Science and Engineering, Animal Cancers, Models for Research in Comparative Oncology (AMaROC) Research Unit, Site de La Chantrerie, 102 Route de Gachet, CS40706, 44307, Nantes, France.,CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France
| | - Delphine Loussouarn
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.,Department of Pathology, University Hospital, Nantes, France
| | - Adelina Gama
- Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Natascha Rieder
- Pathology and Tissue Analytics, Pharma Research & Early Development, Roche Innovation Center Munich, Munich, Germany
| | - Anton Belousov
- Pharmaceutical Sciences, Pharma Research & Early Development, Roche Innovation Center Munich, Munich, Germany
| | - Mario Campone
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.,Institut de Cancérologie de l'Ouest, Angers, France
| | - Jérôme Abadie
- Oniris, Nantes Atlantic College of Veterinary Medicine Food Science and Engineering, Animal Cancers, Models for Research in Comparative Oncology (AMaROC) Research Unit, Site de La Chantrerie, 102 Route de Gachet, CS40706, 44307, Nantes, France.,CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France
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11
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Araújo M, Campos L, Damasceno K, Gamba C, Ferreira E, Cassali G. HER-2, EGFR, Cox-2 and Ki67 expression in lymph node metastasis of canine mammary carcinomas: Association with clinical-pathological parameters and overall survival. Res Vet Sci 2016; 106:121-30. [DOI: 10.1016/j.rvsc.2016.03.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 03/08/2016] [Accepted: 03/28/2016] [Indexed: 11/28/2022]
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12
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Raposo LR, Roma-Rodrigues C, Faísca P, Alves M, Henriques J, Carvalheiro MC, Corvo ML, Baptista PV, Pombeiro AJ, Fernandes AR. Immortalization and characterization of a new canine mammary tumour cell line FR37-CMT. Vet Comp Oncol 2016; 15:952-967. [DOI: 10.1111/vco.12235] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 03/09/2016] [Accepted: 03/18/2016] [Indexed: 01/25/2023]
Affiliation(s)
- L. R. Raposo
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Caparica Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico; Universidade de Lisboa; Lisbon Portugal
| | - C. Roma-Rodrigues
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Caparica Portugal
| | - P. Faísca
- Centro de Investigação em Biociências e Tecnologias da Saúde (CBiOS), Faculdade Medicina Veterinária; Universidade Lusófona de Humanidades e Tecnologias (ULHT) Lisbon; Portugal
| | - M. Alves
- Centro de Investigação em Biociências e Tecnologias da Saúde (CBiOS), Faculdade Medicina Veterinária; Universidade Lusófona de Humanidades e Tecnologias (ULHT) Lisbon; Portugal
| | | | - M. C. Carvalheiro
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia; Universidade de Lisboa; Lisbon Portugal
| | - M. L. Corvo
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia; Universidade de Lisboa; Lisbon Portugal
| | - P. V. Baptista
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Caparica Portugal
| | - A. J. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico; Universidade de Lisboa; Lisbon Portugal
| | - A. R. Fernandes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Caparica Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico; Universidade de Lisboa; Lisbon Portugal
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Matos A, Santos A. Advances in the understanding of the clinically relevant genetic pathways and molecular aspects of canine mammary tumours: Part 1. Proliferation, apoptosis and DNA repair. Vet J 2015; 205:136-43. [DOI: 10.1016/j.tvjl.2015.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 02/03/2015] [Accepted: 02/04/2015] [Indexed: 02/09/2023]
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Muscatello L, Sarli G, Beha G, Asproni P, Millanta F, Poli A, De Tolla L, Benazzi C, Brunetti B. Validation of Tissue Microarray for Molecular Profiling of Canine and Feline Mammary Tumours. J Comp Pathol 2015; 152:153-60. [DOI: 10.1016/j.jcpa.2014.12.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/07/2014] [Accepted: 12/23/2014] [Indexed: 02/05/2023]
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Shinoda H, Legare ME, Mason GL, Berkbigler JL, Afzali MF, Flint AF, Hanneman WH. Significance of ERα, HER2, and CAV1 expression and molecular subtype classification to canine mammary gland tumor. J Vet Diagn Invest 2014; 26:390-403. [DOI: 10.1177/1040638714527289] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Canine mammary gland tumor (CMT) and human breast cancer (HBC) share many similarities regarding their risk factors, histological features, and behavior. Despite the increasing evidence of molecular marker expression as a prognostic indicator for HBC, few studies have applied this approach to CMT. The aim of the present study is to evaluate the significance of the expression of estrogen receptor–alpha (ERα), human epidermal growth factor receptor 2 (HER2), and caveolin-1 (CAV1) to the behavior and the clinical outcome of CMT. Additionally, the correlation between subtype classification (luminal A, luminal B, HER2-overexpressing, basal-like, and normal-like) and tumor behavior prognosis were assessed. Canine mammary gland tissues were immunohistochemically stained for ERα, HER2, and CAV1 and evaluated and classified into 5 subtypes on the basis of immunoreactivity. Although there were no statistically significant differences in the molecular marker immunoreactivity of different subtypes, the degree of positive staining for ERα, extranuclear ERα, HER2, and CAV1 showed significant correlations ( P < 0.05) with the behavior and prognosis of the tumor. The current study indicates the prognostic value of immunohistochemical staining status of ERα, HER2, and CAV1 for CMT. In addition, some trends were seen in subtype classification on the prognosis of the tumor, implying that, although further analysis is needed, there is potential clinical application of 5-subtype classification for CMT.
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Affiliation(s)
- Hitomi Shinoda
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - Marie E. Legare
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - Gary L. Mason
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - Jennifer L. Berkbigler
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - Maryam F. Afzali
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - Alfred F. Flint
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - William H. Hanneman
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
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Marconato L, Zorzan E, Giantin M, Di Palma S, Cancedda S, Dacasto M. Concordance of c-kit mutational status in matched primary and metastatic cutaneous canine mast cell tumors at baseline. J Vet Intern Med 2013; 28:547-53. [PMID: 24372836 PMCID: PMC4858004 DOI: 10.1111/jvim.12266] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 09/19/2013] [Accepted: 11/05/2013] [Indexed: 12/19/2022] Open
Abstract
Background Mutation analysis of proto‐oncogene c‐kit (c‐kit) is advisable before starting treatment with tyrosine kinase inhibitors in dogs with mast cell tumor (MCT), including those with metastatic disease. Testing is usually performed on primary tumors, assuming that c‐kit mutation status does not change in metastasis. Hypothesis/Objectives To give an insight into the mutational processes and to make a recommendation on the use of c‐kit mutational analysis in the clinical setting. Animals Twenty‐one client‐owned dogs with metastatic MCT. Methods Dogs undergoing resection or biopsy for both primary and matched metastatic MCT were prospectively enrolled. Total RNA or DNA was extracted from primary MCT and corresponding metastases. Exons 8, 9, and 11 were amplified by PCR and sequenced. Genetic features between primary MCT and metastases were compared. Their correlation with clinicopathologic features was investigated. Results Concordance (mutated or wild‐type) of mutational status, evaluable in 21 primary and matched metastatic (20 nodal and 1 splenic) MCTs, was 100%. Three new c‐kit mutations were identified. No significant correlation was detected between c‐kit mutation and clinicopathologic features. Conclusions and Clinical Importance Proto‐oncogene c‐kit mutational status is conserved between any primary and its matched secondary tumor, suggesting that both can be used for c‐kit mutational testing. Targeted therapies might be also used to treat metastatic disease.
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Affiliation(s)
- L Marconato
- Centro Oncologico Veterinario, Sasso Marconi, Bologna, Italy
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17
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Beha G, Muscatello LV, Brunetti B, Asproni P, Millanta F, Poli A, Benazzi C, Sarli G. Molecular phenotype of primary mammary tumours and distant metastases in female dogs and cats. J Comp Pathol 2013; 150:194-7. [PMID: 24060151 DOI: 10.1016/j.jcpa.2013.07.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 07/05/2013] [Accepted: 07/29/2013] [Indexed: 01/25/2023]
Abstract
Distant metastases represent a major step in the progression and fatal outcome of canine and feline mammary carcinomas. Recent studies have characterized the molecular phenotypes of mammary tumours and provided information on molecules that may allow targeted therapy in sites from which the tumours may not readily be surgically resected. Molecular phenotypes were determined immunohistochemically in three feline and two canine cases of mammary neoplasia, each presenting with multiple distant metastases. These tumours and their metastases often overexpressed the c-erbB-2 phenotype. A basal-like phenotype was found in the distant metastases from two cases. These findings suggest that canine and feline mammary tumours with distant metastases may be amenable to novel targeted therapies.
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Affiliation(s)
- G Beha
- Department of Veterinary Medical Sciences, University of Bologna, Italy
| | - L V Muscatello
- Department of Veterinary Medical Sciences, University of Bologna, Italy
| | - B Brunetti
- Department of Veterinary Medical Sciences, University of Bologna, Italy.
| | - P Asproni
- Department of Animal Pathology, School of Veterinary Medicine, University of Pisa, Italy
| | - F Millanta
- Department of Animal Pathology, School of Veterinary Medicine, University of Pisa, Italy
| | - A Poli
- Department of Animal Pathology, School of Veterinary Medicine, University of Pisa, Italy
| | - C Benazzi
- Department of Veterinary Medical Sciences, University of Bologna, Italy
| | - G Sarli
- Department of Veterinary Medical Sciences, University of Bologna, Italy
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