1
|
Flecher MC, Balabram D, Salles YA, Souza FR, Estrela-Lima A, Nakagaki KYR, Cassali GD. Evaluation of immunophenotype and inflammation in canine mammary neoplasms with solid arrangement. J Comp Pathol 2024; 213:1-9. [PMID: 39018987 DOI: 10.1016/j.jcpa.2024.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 05/01/2024] [Accepted: 06/14/2024] [Indexed: 07/19/2024]
Abstract
Morphological and immunohistochemical studies of solid arrangement canine mammary carcinomas have shown that the different histological types may be characterized by proliferation of epithelial and/or myoepithelial cells. However, little is known about immunophenotypes and the importance of inflammation as prognostic factors in these neoplasms. The objective of the present study was to characterize the immunophenotype and degree of inflammation in the solid type of canine mammary neoplasm and to investigate their association with metastasis, Ki-67 index, tumour size, necrosis and survival. Sixty-five carcinomas with solid pattern, basaloid carcinomas, solid papillary carcinomas, malignant adenomyoepitheliomas (MAMEs) or malignant myoepitheliomas (MMEs) were investigated. Luminal A, luminal B HER2 negative and HER2 positive, HER2 overexpressed and triple negative immunophenotypes were immunolabelled as were Ki-67 protein and cyclooxygenase-2 (Cox-2). Histological peritumoural and intratumoural inflammatory infiltrates were graded (distribution × intensity) and the presence of necrosis identified. We found a statistical difference between histological types and immunophenotypes, with MME and MAME having a higher occurrence of luminal A, whereas most neoplasms had the luminal B HER-negative immunophenotype. There was no correlation between immunophenotype and degree of peri- and intratumoural inflammation, nodal metastasis, necrosis or tumour size. An increased degree of peri- and intratumoural inflammation was significantly associated with lymph node metastasis, and more severe intratumoural inflammation was associated with the presence of tumour necrosis. Tumour size, Ki-67 index and Cox-2 score were not associated with inflammation in either peri- or intratumoural regions. No difference was observed in survival in relation to immunophenotype or degree of inflammation, but the Cox regression model revealed that nodal metastasis influenced the risk of death.
Collapse
Affiliation(s)
- Mayra C Flecher
- Department of General Pathology/Laboratory of Comparative Pathology, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-091, Brazil; Department of Veterinary Pathology, Universidade Vila Velha, Vila Velha, Espirito Santo, 29101-420, Brazil
| | - Débora Balabram
- Department of Surgery, School of Medicine, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-091, Brazil
| | - Yasmin A Salles
- Department of Veterinary Pathology, Universidade Vila Velha, Vila Velha, Espirito Santo, 29101-420, Brazil
| | - Fernanda R Souza
- Department of General Pathology/Laboratory of Comparative Pathology, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-091, Brazil
| | - Alessandra Estrela-Lima
- Department of Anatomy, Pathology and Veterinary Clinics, Federal University of Bahia, Salvador, Bahia, 401170-110, Brazil
| | - Karen Y R Nakagaki
- Department of General Pathology/Laboratory of Comparative Pathology, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-091, Brazil
| | - Geovanni D Cassali
- Department of General Pathology/Laboratory of Comparative Pathology, Federal University of Minas Gerais, Av. Pres. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-091, Brazil.
| |
Collapse
|
2
|
Kuruoglu FE, Ekici ZM, Nak D, Ozyigit MO, Kupeli ZA, Koca D. Investigation of efficacy of two different chemotherapy protocols used in neoadjuvant chemotherapy in clinical stages II-IV canine malignant mammary tumours. Vet Comp Oncol 2024; 22:284-294. [PMID: 38600051 DOI: 10.1111/vco.12976] [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: 10/25/2023] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/12/2024]
Abstract
The first aim of this study is to demonstrate the clinical efficacy and reliability of two different neoadjuvant chemotherapy (NAC) protocols consisting of doxorubicin/cyclophosphamide (AC) and paclitaxel in dogs with clinical stages II-IV canine malignant mammary tumours (CMTs). Secondly, to determine the Luminal A, Luminal B, HER2-positive and triple-negative molecular subtypes and their value in predicting clinical response to NAC in biopsy samples, and thirdly, to reveal the changes in Ki-67, human epidermal growth factor receptor type 2 (HER2), oestrogen receptor (ER), and progesterone receptor (PgR) expression levels induced by NAC. Thirty dogs with clinical stages II-IV CMTs (T1-3N0-1M0) according to the modified TNM system were included in the study. Dogs in group-1 (n = 15) AC combination and dogs in group-2 (n = 15) were administered paclitaxel. Partial response (PR) was the most common clinical response in both treatment groups (66.66% and 86.66%, respectively). There was no difference between the groups regarding clinical response parameters (p = .001). The rate of treatment responders was higher than the rate of non-responders in both groups (p < .001). The adverse effects observed in both groups were mostly limited to grades 1 and 2 and all were easy to manage. The most frequently detected molecular subtype was Luminal A (59.25%). Complete response (CR) was achieved in 33.33% of dogs with triple-negative CMT in the AC group and 14.29% of the Luminal A subtype in the paclitaxel group. Alterations in Ki-67, HER2, ER, and PgR expressions after chemotherapy were not statistically significant (p > .05). As a result, we have shown that these neoadjuvant chemotherapy protocols are effective and safe alternative treatment options for CMTs.
Collapse
Affiliation(s)
- Fikriye Ecem Kuruoglu
- Department of Obstetrics and Gynecology, Veterinary Faculty, Bursa Uludag University, Bursa, Turkey
| | - Zeynep Merve Ekici
- Department of Obstetrics and Gynecology, Veterinary Faculty, Bursa Uludag University, Bursa, Turkey
| | - Deniz Nak
- Department of Obstetrics and Gynecology, Veterinary Faculty, Bursa Uludag University, Bursa, Turkey
| | - Musa Ozgur Ozyigit
- Department of Department of Pathology, Veterinary Faculty, Bursa Uludag University, Bursa, Turkey
| | - Zehra Avci Kupeli
- Department of Department of Pathology, Veterinary Faculty, Bursa Uludag University, Bursa, Turkey
| | - Davut Koca
- Department of Obstetrics and Gynecology, Veterinary Faculty, Bursa Uludag University, Bursa, Turkey
| |
Collapse
|
3
|
Bae MK, Ko YU, Seung BJ, Sur JH, Choe NH. PD-L1 mRNA and protein expression in canine mammary carcinomas: Correlation with histopathological grade and molecular markers. Vet Pathol 2024; 61:402-409. [PMID: 38281145 DOI: 10.1177/03009858241226621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Programmed death ligand 1 (PD-L1) is an immune checkpoint molecule that plays a crucial role in regulating antitumor immune responses. Canine mammary carcinomas (CMCs) are common tumors of dogs. Despite extensive studies on the heterogeneity of CMCs, there is still a lack of effective precision therapies for the treatment of CMCs. In this study, we aimed to investigate the correlation between PD-L1 mRNA and protein expression in CMCs and explore its association with histopathological grade and molecular markers, including the estrogen receptor, epidermal growth factor receptor 2, and cytokeratin 5/6 (CK5/6). Formalin-fixed paraffin-embedded samples were evaluated for PD-L1 mRNA expression using RNA in situ hybridization and PD-L1 protein expression using immunohistochemistry. We observed no substantial correlation between PD-L1 mRNA and protein expression in CMCs; however, PD-L1 mRNA levels were significantly higher in grade 3 than in grade 1 tumors (P = .001). In addition, we observed a positive correlation between PD-L1 protein expression and CK5/6 expression in CMCs (P = .032). These findings suggest that PD-L1 expression in CMCs is heterogeneous and may be regulated post-transcriptionally. Further studies are needed to explore the prognostic and therapeutic implications of PD-L1 expression in different molecular subtypes of CMCs and their potential as predictive biomarkers for immunotherapy.
Collapse
Affiliation(s)
| | | | - Byung-Joon Seung
- Konkuk University, Seoul, Korea
- University of Illinois Urbana-Champaign, Urbana, IL
| | - Jung-Hyang Sur
- Konkuk University, Seoul, Korea
- Komipharm International Co., Ltd., Siheung-si, Korea
| | | |
Collapse
|
4
|
Gherman LM, Chiroi P, Nuţu A, Bica C, Berindan-Neagoe I. Profiling canine mammary tumors: A potential model for studying human breast cancer. Vet J 2024; 303:106055. [PMID: 38097103 DOI: 10.1016/j.tvjl.2023.106055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
Despite all clinical progress recorded in the last decades, human breast cancer (HBC) remains a major challenge worldwide both in terms of its incidence and its management. Canine mammary tumors (CMTs) share similarities with HBC and represent an alternative model for HBC. The utility of the canine model in studying HBC relies on their common features, include spontaneous development, subtype classification, mutational profile, alterations in gene expression profile, and incidence/prevalence. This review describes the similarities between CMTs and HBC regarding genomic landscape, microRNA expression alteration, methylation, and metabolomic changes occurring during mammary gland carcinogenesis. The primary purpose of this review is to highlight the advantages of using the canine model as a translational animal model for HBC research and to investigate the challenges and limitations of this approach.
Collapse
Affiliation(s)
- Luciana-Madalina Gherman
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania; Experimental Center of Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca, 400349 Cluj-Napoca, Romania
| | - Paul Chiroi
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - Andreea Nuţu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - Cecilia Bica
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania.
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| |
Collapse
|
5
|
Vazquez E, Lipovka Y, Cervantes-Arias A, Garibay-Escobar A, Haby MM, Queiroga FL, Velazquez C. Canine Mammary Cancer: State of the Art and Future Perspectives. Animals (Basel) 2023; 13:3147. [PMID: 37835752 PMCID: PMC10571550 DOI: 10.3390/ani13193147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/21/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Mammary cancer is the most frequently diagnosed neoplasia in women and non-spayed female dogs and is one of the leading causes of death in both species. Canines develop spontaneous mammary tumors that share a significant number of biological, clinical, pathological and molecular characteristics with human breast cancers. This review provides a detailed description of the histological, molecular and clinical aspects of mammary cancer in canines; it discusses risk factors and currently available diagnostic and treatment options, as well as remaining challenges and unanswered questions. The incidence of mammary tumors is highly variable and is impacted by biological, pathological, cultural and socioeconomic factors, including hormonal status, breed, advanced age, obesity and diet. Diagnosis is mainly based on histopathology, although several efforts have been made to establish a molecular classification of canine mammary tumors to widen the spectrum of treatment options, which today rely heavily on surgical removal of tumors. Lastly, standardization of clinical study protocols, development of canine-specific biological tools, establishment of adequate dog-specific disease biomarkers and identification of targets for the development of new therapies that could improve survival and have less adverse effects than chemotherapy are among the remaining challenges.
Collapse
Affiliation(s)
- Eliza Vazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Yulia Lipovka
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Alejandro Cervantes-Arias
- Department of Small Animal Medicine and Surgery, Small Animal Teaching Hospital, The National University of Mexico (UNAM), Ciudad Universitaria, Investigación Científica 3000, Coyoacán, Mexico City 04360, Mexico;
| | - Adriana Garibay-Escobar
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Michelle M. Haby
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| | - Felisbina Luisa Queiroga
- CECAV—Animal and Veterinary Research Center, University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal
| | - Carlos Velazquez
- Department of Chemistry-Biology, University of Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo 83000, Mexico; (E.V.); (Y.L.); (A.G.-E.); (M.M.H.)
| |
Collapse
|
6
|
Watson J, Wang T, Ho KL, Feng Y, Mahawan T, Dobbin KK, Zhao S. Human basal-like breast cancer is represented by one of the two mammary tumor subtypes in dogs. Breast Cancer Res 2023; 25:114. [PMID: 37789381 PMCID: PMC10546663 DOI: 10.1186/s13058-023-01705-5] [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: 02/28/2023] [Accepted: 08/31/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND About 20% of breast cancers in humans are basal-like, a subtype that is often triple-negative and difficult to treat. An effective translational model for basal-like breast cancer is currently lacking and urgently needed. To determine whether spontaneous mammary tumors in pet dogs could meet this need, we subtyped canine mammary tumors and evaluated the dog-human molecular homology at the subtype level. METHODS We subtyped 236 canine mammary tumors from 3 studies by applying various subtyping strategies on their RNA-seq data. We then performed PAM50 classification with canine tumors alone, as well as with canine tumors combined with human breast tumors. We identified feature genes for human BLBC and luminal A subtypes via machine learning and used these genes to repeat canine-alone and cross-species tumor classifications. We investigated differential gene expression, signature gene set enrichment, expression association, mutational landscape, and other features for dog-human subtype comparison. RESULTS Our independent genome-wide subtyping consistently identified two molecularly distinct subtypes among the canine tumors. One subtype is mostly basal-like and clusters with human BLBC in cross-species PAM50 and feature gene classifications, while the other subtype does not cluster with any human breast cancer subtype. Furthermore, the canine basal-like subtype recaptures key molecular features (e.g., cell cycle gene upregulation, TP53 mutation) and gene expression patterns that characterize human BLBC. It is enriched in histological subtypes that match human breast cancer, unlike the other canine subtype. However, about 33% of canine basal-like tumors are estrogen receptor negative (ER-) and progesterone receptor positive (PR+), which is rare in human breast cancer. Further analysis reveals that these ER-PR+ canine tumors harbor additional basal-like features, including upregulation of genes of interferon-γ response and of the Wnt-pluripotency pathway. Interestingly, we observed an association of PGR expression with gene silencing in all canine tumors and with the expression of T cell exhaustion markers (e.g., PDCD1) in ER-PR+ canine tumors. CONCLUSIONS We identify a canine mammary tumor subtype that molecularly resembles human BLBC overall and thus could serve as a vital translational model of this devastating breast cancer subtype. Our study also sheds light on the dog-human difference in the mammary tumor histology and the hormonal cycle.
Collapse
Affiliation(s)
- Joshua Watson
- Institute of Bioinformatics, University of Georgia, 120 E Green Street, Athens, GA, 30602, USA
| | - Tianfang Wang
- Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, 120 E Green Street, Athens, GA, 30602, USA
| | - Kun-Lin Ho
- Institute of Bioinformatics, University of Georgia, 120 E Green Street, Athens, GA, 30602, USA
| | - Yuan Feng
- Institute of Bioinformatics, University of Georgia, 120 E Green Street, Athens, GA, 30602, USA
| | - Tanakamol Mahawan
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Kevin K Dobbin
- Department of Biostatistics, University of Georgia, Athens, GA, 30602, USA
| | - Shaying Zhao
- Institute of Bioinformatics, University of Georgia, 120 E Green Street, Athens, GA, 30602, USA.
- Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, 120 E Green Street, Athens, GA, 30602, USA.
| |
Collapse
|
7
|
Ferreira T, Gama A, Seixas F, Faustino-Rocha AI, Lopes C, Gaspar VM, Mano JF, Medeiros R, Oliveira PA. Mammary Glands of Women, Female Dogs and Female Rats: Similarities and Differences to Be Considered in Breast Cancer Research. Vet Sci 2023; 10:379. [PMID: 37368765 DOI: 10.3390/vetsci10060379] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/23/2023] [Accepted: 05/27/2023] [Indexed: 06/29/2023] Open
Abstract
Breast cancer is one of the most common and well-known types of cancer among women worldwide and is the most frequent neoplasm in intact female dogs. Female dogs are considered attractive models or studying spontaneous breast cancer, whereas female rats are currently the most widely used animal models for breast cancer research in the laboratory context. Both female dogs and female rats have contributed to the advancement of scientific knowledge in this field, and, in a "One Health" approach, they have allowed broad understanding of specific biopathological pathways, influence of environmental factors and screening/discovery of candidate therapies. This review aims to clearly showcase the similarities and differences among woman, female dog and female rat concerning to anatomical, physiological and histological features of the mammary gland and breast/mammary cancer epidemiology, in order to better portray breast tumorigenesis, and to ensure appropriate conclusions and extrapolation of results among species. We also discuss the major aspects that stand out in these species. The mammary glands of female dogs and women share structural similarities, especially with respect to the lactiferous ducts and lymphatic drainage. In contrast, female rats have only one lactiferous duct per nipple. A comprehensive comparison between humans and dogs is given a special focus, as these species share several aspects in terms of breast/mammary cancer epidemiology, such as age of onset, hormonal etiology, risk factors, and the clinical course of the disease. Holistically, it is clear that each species has advantages and limitations that researchers must consider during the development of experimental designs and data analysis.
Collapse
Affiliation(s)
- Tiago Ferreira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto), Porto Comprehensive Cancer Center (Porto.CCC), 4200-072 Porto, Portugal
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Adelina Gama
- Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - Fernanda Seixas
- Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - Ana I Faustino-Rocha
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Department of Zootechnics, School of Sciences and Technology, University of Évora, 7004-516 Évora, Portugal
- Comprehensive Health Research Center, 7004-516 Évora, Portugal
| | - Carlos Lopes
- Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - Vítor M Gaspar
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - João F Mano
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto), Porto Comprehensive Cancer Center (Porto.CCC), 4200-072 Porto, Portugal
- Faculty of Medicine, University of Porto (FMUP), 4200-319 Porto, Portugal
- Research Department of the Portuguese League against Cancer-Regional Nucleus of the North (Liga Portuguesa Contra o Cancro-Núcleo Regional do Norte), 4200-177 Porto, Portugal
- Virology Service, Portuguese Institute of Oncology (IPO), 4200-072 Porto, Portugal
- Biomedical Research Center (CEBIMED), Faculty of Health Sciences of the Fernando Pessoa University, 4249-004 Porto, Portugal
| | - Paula A Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| |
Collapse
|
8
|
Watson J, Wang T, Ho KL, Feng Y, Dobbin KK, Zhao S. Human basal-like breast cancer is represented by one of the two mammary tumor subtypes in dogs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.02.530622. [PMID: 37034591 PMCID: PMC10081165 DOI: 10.1101/2023.03.02.530622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Background About 20% of breast cancers in humans are basal-like, a subtype that is often triple negative and difficult to treat. An effective translational model for basal-like breast cancer (BLBC) is currently lacking and urgently needed. To determine if spontaneous mammary tumors in pet dogs could meet this need, we subtyped canine mammary tumors and evaluated the dog-human molecular homology at the subtype level. Methods We subtyped 236 canine mammary tumors from 3 studies by applying various subtyping strategies on their RNA-seq data. We then performed PAM50 classification with canine tumors alone, as well as with canine tumors combined with human breast tumors. We investigated differential gene expression, signature gene set enrichment, expression association, mutational landscape, and other features for dog-human subtype comparison. Results Our independent genome-wide subtyping consistently identified two molecularly distinct subtypes among the canine tumors. One subtype is mostly basal-like and clusters with human BLBC in cross-species PAM50 classification, while the other subtype does not cluster with any human breast cancer subtype. Furthermore, the canine basal-like subtype recaptures key molecular features (e.g., cell cycle gene upregulation, TP53 mutation) and gene expression patterns that characterize human BLBC. It is enriched histological subtypes that match human breast cancer, unlike the other canine subtype. However, about 33% of canine basal-like tumors are estrogen receptor negative (ER-) and progesterone receptor positive (PR+), which is rare in human breast cancer. Further analysis reveals that these ER-PR+ canine tumors harbor additional basal-like features, including upregulation of genes of interferon-γ response and of the Wnt-pluripotency pathway. Interestingly, we observed an association of PGR expression with gene silencing in all canine tumors, and with the expression of T cell exhaustion markers (e.g., PDCD1 ) in ER-PR+ canine tumors. Conclusions We identify a canine mammary tumor subtype that molecularly resembles human BLBC overall, and thus could serve as a vital spontaneous animal model of this devastating breast cancer subtype. Our study also sheds light on the dog-human difference in the mammary tumor histology and the hormonal cycle.
Collapse
Affiliation(s)
- Joshua Watson
- Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA
| | - Tianfang Wang
- Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA
| | - Kun-Lin Ho
- Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA
| | - Yuan Feng
- Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA
| | - Kevin K Dobbin
- Department of Biostatistics, University of Georgia, Athens, GA 30602, USA
| | - Shaying Zhao
- Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA
- Department of Biochemistry and Molecular Biology, Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA
| |
Collapse
|
9
|
Chen A, Ye S, Zheng J, Li J, Chen Z, Zhang Y, Li S. Establishment and characterization of a HER2-enriched canine mammary cancerous myoepithelial cell line. BMC Vet Res 2023; 19:22. [PMID: 36717813 PMCID: PMC9885638 DOI: 10.1186/s12917-023-03573-9] [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: 02/28/2022] [Accepted: 01/10/2023] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Canine mammary tumors (CMTs) have a poor prognosis, along with tumor recurrence and metastasis. Cell lines are vital in vitro models for CMT research. Many CMT epithelial cell lines were reported. However, canine mammary myoepithelial cells, the contractile component of the canine mammary tissue were overlooked. This study aimed at establishing such a cell line. CMT-1 cell line was obtained from a canine mammary tumor CMT-1 and characterized molecularly through qPCR, western blotting, immunochemistry and immunofluorescence. Its doubling time, cytogenetic analysis and migration rate were evaluated using growth study, karyotype analysis and wound healing assay respectively. To determine its tumorigenesis, xenograft transplantation was performed. RESULTS CMT-1 tumor was a complex canine mammary carcinoma that stained negative to estrogen receptors (ER) and progesterone receptors (PR), but positive to human epidermal growth receptor-2 (HER2), defined as HER2-enriched subtype. In this study, a CMT-1 cell line obtained from CMT-1 tumor was immune-positive to vimentin, α-SMA, p63 and negative to E-cadherin (E-cad), indicating CMT-1 cells were myoepithelial cells. It was successfully cultured for more than 50 passages showing the same immunoreactivity to ER, PR, and HER2 as the primary canine tumor. The doubling time of CMT-1 cell line was 26.67 h. The chromosome number of CMT-1 cells ranged from 31 to 64. A potential spontaneous epithelial to mesenchymal transition (EMT) was noticed during cell cultures. Potential EMT-induced CMT-1 cells showed no significance in migration rate compared to the original CMT-1 cells. CMT-1 cells was able to grow on a 3D culture and formed grape-like, solid, and cystic mammospheres at different time period. Inoculation of CMT-1 cells induced a complex HER2-enriched mammary tumor with metastasis in mice. CONCLUSIONS A canine cancerous HER2-enriched myoepithelial cell line was successfully established and a canine mammosphere developed from myoepithelial cells was documented in this study. We are expecting this novel cell line and its associated mammospheres could be used as a model to elucidate the role of myoepithelial cells in CMT carcinogensis in the future.
Collapse
Affiliation(s)
- Aolei Chen
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,grid.484195.5Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,Guangdong Technological Engineering Research Center for Pet, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China
| | - Shaotang Ye
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,grid.484195.5Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,Guangdong Technological Engineering Research Center for Pet, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China
| | - Jiahui Zheng
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China
| | - Jichao Li
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,grid.484195.5Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,Guangdong Technological Engineering Research Center for Pet, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China
| | - Zejia Chen
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,grid.484195.5Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,Guangdong Technological Engineering Research Center for Pet, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China
| | - Yashan Zhang
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China
| | - Shoujun Li
- grid.20561.300000 0000 9546 5767College of Veterinary Medicine, South China Agricultural University, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,grid.484195.5Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China ,Guangdong Technological Engineering Research Center for Pet, No.483 Wushanlu, Tianhe District, Guangzhou, Guangdong Province 510642 China
| |
Collapse
|
10
|
Ren X, Fan Y, Shi D, Liu Y. Expression and significance of IL-6 and IL-8 in canine mammary gland tumors. Sci Rep 2023; 13:1302. [PMID: 36693957 PMCID: PMC9873921 DOI: 10.1038/s41598-023-28389-3] [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: 10/27/2021] [Accepted: 01/18/2023] [Indexed: 01/25/2023] Open
Abstract
Mammary gland tumors are the most common malignant diseases which seriously threaten the health of women and female dogs. There is a lack of an effective tumor marker which can effectively assist in the early diagnosis, and prognosis of mammary gland tumors in veterinary clinical medicine. IL-6, and IL-8 as immunosuppressive factors may stimulate tumor cells growth, contribute to loco-regional relapse and metastasis that might be utilized as a marker for immunity status and monitoring of the course of tumor. The present study aimed to investigate the expression of serum/tissue IL-6, IL-8 and IL-10 in canine mammary gland tumors using Enzyme linked immunosorbent assay(ELISA), Western blot and Immunohistochemistry assay(IHC) to determine whether it is associated with tumor progression. The results showed that levels of IL-6, IL-8 and IL-10 in serum were higher in malignant tumor group than that in benign tumor and control group; the expression levels of IL-6 and IL-8 were significantly elevated in grade III than in grade I and II and was related to metastasis. Likewise, IL-6 and IL-8 were also highly expressed in malignant tumor tissues. Elevated expression of IL-6 was associated with histopathological grade and metastases in malignant tumors. Moreover, high expression of IL-6 occurred in the Basal-like subtypes whereas high expression of IL-8 occurred in the Luminal B subtypes. The results of this study indicated that changes of IL-6 and IL-8 in the tumor microenvironments were closely related to the diseases status and may be used as a potential diagnostic or biomarker in canine mammary gland tumors.
Collapse
Affiliation(s)
- Xiaoli Ren
- Zhengzhou City Key Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, China.,Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Yuying Fan
- Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Dongmei Shi
- Zhengzhou City Key Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, China
| | - Yun Liu
- Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| |
Collapse
|
11
|
The development of molecular typing in canine mammary carcinomas. Mol Biol Rep 2022; 49:8943-8951. [PMID: 35841467 DOI: 10.1007/s11033-022-07383-4] [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: 12/06/2021] [Accepted: 03/16/2022] [Indexed: 10/17/2022]
Abstract
Mammary tumors are the most frequent neoplasia in old female dogs and present challenges in diagnosis and prognosis owing to heterogeneity. Along with the rapid development of biotechnology, the molecular subtyping of canine mammary carcinomas has been researched, and provides an important reference basis for diagnosis, treatment, prognosis, and even prediction of recurrence rate. Therefore, the molecular classification of canine mammary carcinomas has gained a broad clinical application prospect. However, the existing molecular markers of canine mammary carcinomas are still unable to meet the expanding clinical needs with poor clinical feasibility. Thus, it is urgent to develop more applicable biomarkers appropriate for personalized treatment modalities. At present, the molecular typing of canine mammary carcinomas is not fully understood, and it is first reviewed in this study.
Collapse
|
12
|
Hsu TC, Garner MM, Kiupel M. Morphological and immunohistochemical characterization and molecular classification of spontaneous mammary gland tumors in macropods. Vet Pathol 2022; 59:433-441. [PMID: 35001750 PMCID: PMC10506399 DOI: 10.1177/03009858211069164] [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] [Indexed: 11/15/2022]
Abstract
Mammary gland neoplasms in macropods are uncommonly reported, and the morphological and immunohistochemical characteristics are incompletely described. The goal of this study was to describe the morphologic features of macropod mammary neoplasms and to determine the molecular subtypes of mammary carcinomas using a panel of antibodies against estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (Her-2), p63, smooth muscle actin (SMA), and epidermal growth factor receptor (EGFR). Biopsy and necropsy specimens were examined from 21 macropods with mammary tumors submitted to Northwest ZooPath from 1996 to 2019. In accordance with the histologic classification of canine mammary tumors proposed by Goldschmidt and colleagues, tubulopapillary (2), tubular (10), and comedo-carcinomas (2), adenoma (1), lobular hyperplasia (3), fibroadenomatous hyperplasia (1), and mastitis (2) were diagnosed. Red kangaroos (Osphranter rufus) were most commonly diagnosed with mammary carcinomas (79% of all carcinomas). Seven carcinomas had lymphovascular invasion and 2 also had pulmonary metastases. Six of these 7 carcinomas were classified as grade 3. Immunohistochemistry (IHC) for all antibodies was performed on 9/14 carcinomas, and partial IHC was performed for 3 cases. All 12 carcinomas were immunoreactive for PR, 5 for ER, 9 for EGFR, and none for Her-2. Five of the 9 mammary carcinomas with complete IHC data were classified as luminal A subtype, and 4 were normal-like subtype. Accurate classification of mammary tumors in macropods based on morphology, immunohistological characteristics, and molecular subtype may be helpful in guiding clinical management, prognosis, and potential therapeutic targets.
Collapse
Affiliation(s)
- Tu Chun Hsu
- Michigan State University, Lansing, MI
- National Institutes of Health, Bethesda, MD
| | | | | |
Collapse
|
13
|
Nunes F, Bertagnolli A, Lavalle G, Silveira T, Balabram D, Cassali G. The prognostic significance of immunophenotypes in canine malignant mammary tumors. ARQ BRAS MED VET ZOO 2022. [DOI: 10.1590/1678-4162-12273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
ABSTRACT Canine malignant mammary neoplasms (CMMN) exhibit behavioral variability with the patient survival time depending on several prognostic factors. In the present study, 134 CMMN were selected and different immunophenotypes and their associations with clinical and pathological parameters were identified. The tumors were classified as follows: 46% of luminal B HER2-, 34% of luminal A, 13% of triple-negative, and 7% of luminal B HER2+. Shorter specific survival time were associated with larger tumor sizes (>3.0 cm, HR=1.94; P=0.0209), lymph node metastasis or distant metastasis (HR= 2.82; P <.0001), more aggressive histological types (HR= 7.15, P<0.0001), higher histological grades (HR= 12.97 P=0.011), angiolymphatic invasion (HR=4.68, P<0.0001) and luminal B HER2 - (HR= 3.27, P<0.0001) and luminal B HER2 + (HR= 7.14 P<0.0001) immunophenotypes. In patients with lymph nodal metastasis, shorter survival times were associated with luminal immunophenotype B HER2 + (P=0.003). However, in patients without metastasis, an increased risk of death was associated with the aggressive histological type. In conclusion, the classification in our study allowed us to identify subtypes with different prognoses in canine malignant mammary tumors. Factors such as clinical stage, histological type, luminal B HER2+ subtype, and angiolymphatic invasion were the most important prognostic factors.
Collapse
Affiliation(s)
- F.C. Nunes
- Universidade Federal de Minas Gerais, Brazil
| | - A.C. Bertagnolli
- Centro Estadual de Diagnóstico e Pesquisa em Saúde Animal Desidério Finamor, Brasil
| | | | | | - D. Balabram
- Universidade Federal de Minas Gerais, Brazil
| | | |
Collapse
|
14
|
Vitamin D receptor (VDR) expression in different molecular subtypes of canine mammary carcinoma. BMC Vet Res 2021; 17:197. [PMID: 34034728 PMCID: PMC8152340 DOI: 10.1186/s12917-021-02901-1] [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: 01/08/2021] [Accepted: 05/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The molecular-based classification of canine mammary carcinomas (CMCs) has been the focus of much current research. Both in canines and humans, the triple-negative (TN) molecular subtype of mammary cancer is defined by a lack of expression of progesterone receptor (PR), oestrogen receptor (ER) and HER2. It has a poor prognosis; no effective targeted therapy is available. Vitamin D displays anticarcinogenic properties, and the expression of its receptor (VDR) has been found in different molecular subtypes, being about 30-40 % of TN breast cancer (TNBC) positive to it. We assessed the VDR expression in the different molecular subtypes of 58 CMCs from 45 female dogs using an immunohistochemical panel for the molecular classification of included: PR, ER, HER2, cytokeratin (CK) 5, CK14, and Ki67. In addition, we studied the relationship among the molecular subtypes of CMCs and clinicopathologic parameters. RESULTS Investigation showed VDR positivity in 45.0 % of the triple-negative CMCs (TNCMCs), 27.3 % of luminal B and 19.0 % of luminal A. Luminal A was the most molecular subtype represented of the total tumours (36.2 %), followed of TNCMCs (34.5 %), luminal B (20.7 %) and HER2-overexpression (10.3 %). Both HER2-overexpression and TNCMC subtypes were positively related to lymphatic invasion (P = 0.028), simple histologic subtype (P = 0.007), a higher histological grade (P = 0.045) and a trend to higher proliferation index (P = 0.09). CONCLUSIONS The highest VDR expression was observed in TNCMC, being almost half of them (45 %) positive to this receptor. VDR expression was absent in HER2-overexpression tumours and low in luminal A and B molecular subtypes.
Collapse
|
15
|
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.
Collapse
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
| |
Collapse
|
16
|
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.
Collapse
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
| |
Collapse
|
17
|
Sakai K, Chambers JK, Uchida K, Nakagawa T, Nishimura R, Yonezawa T, Maeda S. ErbB2 copy number gain is associated with adverse outcome in canine mammary carcinoma. J Vet Med Sci 2021; 83:370-377. [PMID: 33473058 PMCID: PMC8025436 DOI: 10.1292/jvms.20-0483] [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] [Indexed: 12/02/2022] Open
Abstract
Copy number gain (CNG) and/or protein overexpression of ErbB2 have been observed in human breast cancer patients and are associated with poor prognosis.
Similarly, ErbB2 overexpression has also been observed in canine mammary carcinoma; however, data on ErbB2 copy number is limited. The purposes
of this study were to evaluate ErbB2 copy number in dogs with mammary carcinoma and to investigate associations of ErbB2 CNG
with ErbB2 expression, histological and clinical characteristics, and survival. DNA samples were isolated from 59 formalin-fixed paraffin-embedded canine
mammary gland tissues (34 carcinoma, 14 adenoma, and 11 normal). Using a digital PCR assay, the ErbB2 copy number in these samples was
determined as compared to a reference gene on canine chromosome 8. ErbB2 CNG was detected in 14/34 (41%) carcinomas and 2/14 (14%) adenomas.
ErbB2 overexpression was observed in 3/34 (9%) carcinomas but not in adenomas. Neither ErbB2 CNG nor ErbB2 overexpression were detected in the
normal controls. There was no significant association of the ErbB2 CNG with histological and clinical characteristics such as age, neutered
status, histological grade, tumor size, lymph node involvement, distant metastasis, and clinical stage in the dogs with mammary carcinoma. The presence of
ErbB2 CNG, but not ErbB2 overexpression, was significantly related to the shorter overall survival. These findings suggest that
ErbB2 CNG is a prognostic factor in dogs with mammary carcinoma.
Collapse
Affiliation(s)
- Kosei Sakai
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - James Ken Chambers
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kazuyuki Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Takayuki Nakagawa
- Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ryohei Nishimura
- Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomohiro Yonezawa
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Shingo Maeda
- Department of Veterinary Clinical Pathobiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| |
Collapse
|
18
|
Cambien B, Lebrigand K, Baeri A, Nottet N, Compin C, Lamit A, Ferraris O, Peyrefitte CN, Magnone V, Henriques J, Zaragosi LE, Giorgetti-Peraldi S, Bost F, Gautier-Isola M, Rezzonico R, Barbry P, Barthel R, Mari B, Vassaux G. Identification of oncolytic vaccinia restriction factors in canine high-grade mammary tumor cells using single-cell transcriptomics. PLoS Pathog 2020; 16:e1008660. [PMID: 33075093 PMCID: PMC7595618 DOI: 10.1371/journal.ppat.1008660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 10/29/2020] [Accepted: 09/01/2020] [Indexed: 01/13/2023] Open
Abstract
Mammary carcinoma, including triple-negative breast carcinomas (TNBC) are tumor-types for which human and canine pathologies are closely related at the molecular level. The efficacy of an oncolytic vaccinia virus (VV) was compared in low-passage primary carcinoma cells from TNBC versus non-TNBC. Non-TNBC cells were 28 fold more sensitive to VV than TNBC cells in which VV replication is impaired. Single-cell RNA-seq performed on two different TNBC cell samples, infected or not with VV, highlighted three distinct populations: naïve cells, bystander cells, defined as cells exposed to the virus but not infected and infected cells. The transcriptomes of these three populations showed striking variations in the modulation of pathways regulated by cytokines and growth factors. We hypothesized that the pool of genes expressed in the bystander populations was enriched in antiviral genes. Bioinformatic analysis suggested that the reduced activity of the virus was associated with a higher mesenchymal status of the cells. In addition, we demonstrated experimentally that high expression of one gene, DDIT4, is detrimental to VV production. Considering that DDIT4 is associated with a poor prognosis in various cancers including TNBC, our data highlight DDIT4 as a candidate resistance marker for oncolytic poxvirus therapy. This information could be used to design new generations of oncolytic poxviruses. Beyond the field of gene therapy, this study demonstrates that single-cell transcriptomics can be used to identify cellular factors influencing viral replication. The identification of cellular genes influencing viral replication/propagation has been studied using hypothesis-driven approaches and/or high-throughput RNA interference screens. In the present report, we propose a methodology based on single-cell transcriptomics. We have studied, in the context of oncolytic virotherapy, the susceptibility of different grades of primary low-passage mammary carcinoma cells of canine origin to an oncolytic vaccinia virus (VV). We highlight a fault in replication of VV in cells that originated from high-grade triple-negative breast carcinomas (TNBC). Single-cell RNA-seq performed on TNBC cell samples infected with VV suggested that the reduced activity of the virus was associated with a higher mesenchymal status of the cells. We also demonstrate that high expression of one gene, DDIT4, is detrimental to VV production. Considering that DDIT4 is associated with a poor prognosis in various cancers including TNBC, our data highlight DDIT4 as a candidate resistance marker for oncolytic poxvirus therapy. Beyond the field of cancer gene therapy, we demonstrate here that single-cell transcriptomics increases the arsenal of tools available to identify cellular factors influencing viral replication.
Collapse
Affiliation(s)
| | - Kevin Lebrigand
- Université Côte d'Azur, CNRS, IPMC, FHU-OncoAge, Valbonne, France
| | - Alberto Baeri
- Université Côte d'Azur, CNRS, IPMC, FHU-OncoAge, Valbonne, France
| | - Nicolas Nottet
- Université Côte d'Azur, CNRS, IPMC, FHU-OncoAge, Valbonne, France
| | | | - Audrey Lamit
- Université Côte d'Azur, CEA, Laboratoire TIRO, Nice France
| | - Olivier Ferraris
- Institut de recherche biomédicale des armées, Université de Lyon, Lyon, France
| | | | - Virginie Magnone
- Université Côte d'Azur, CNRS, IPMC, FHU-OncoAge, Valbonne, France
| | | | | | | | | | | | - Roger Rezzonico
- Université Côte d'Azur, INSERM, CNRS, IPMC, Valbonne, France
| | - Pascal Barbry
- Université Côte d'Azur, CNRS, IPMC, FHU-OncoAge, Valbonne, France
| | | | - Bernard Mari
- Université Côte d'Azur, CNRS, IPMC, FHU-OncoAge, Valbonne, France
| | - Georges Vassaux
- Université Côte d'Azur, INSERM, CNRS, IPMC, Valbonne, France
- * E-mail:
| |
Collapse
|
19
|
Chocteau F, Mordelet V, Dagher E, Loussouarn D, Abadie J, Nguyen F. One-year conditional survival of dogs and cats with invasive mammary carcinomas: A concept inspired from human breast cancer. Vet Comp Oncol 2020; 19:140-151. [PMID: 32954630 PMCID: PMC7891631 DOI: 10.1111/vco.12655] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/10/2020] [Accepted: 09/18/2020] [Indexed: 01/14/2023]
Abstract
Numerous studies have described the prognostic factors of canine and feline mammary carcinomas (MCs), that is, variables that predict patient survival after diagnosis. But how does survival estimation evolve in patients that escaped early death from their cancer? In human oncology, conditional survival (CS), the probability of surviving X further years when cancer patients have already survived Y years, is used to analyse cancer outcomes in a long‐term perspective. In this cohort of 344 dogs and 342 cats with surgically removed stage I to III invasive MCs, with a minimal follow‐up of 2 years, we calculated the 1‐year CS, that is, the probability for patients that have survived 1 year, to survive or to die from cancer during the subsequent year. The 1‐year conditional specific survival probabilities were 59% and 48% at diagnosis of invasive MC respectively in dogs and cats, and 80% and 52% in 1‐year surviving dogs and cats respectively, suggesting that 1‐year surviving dogs were relatively protected from cancer‐related death, whereas feline MCs remained life‐threatening cancers for longer periods of time. Among the most significant parameters associated with CS in surviving dogs and cats were the nodal stage and lymphovascular invasion, as well as patient age, cancer stage and margin status in surviving dogs. By comparison, tumour size and the histological grade did not significantly alter CS probabilities in surviving dogs and cats. Conditional survival may be considered a very interesting tool for veterinary practitioners to estimate the likely outcome of cancer survivors.
Collapse
Affiliation(s)
- Florian Chocteau
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | - Valentin Mordelet
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | - Elie Dagher
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | - Delphine Loussouarn
- Université de Nantes, Inserm, CRCINA, Nantes, France.,Department of Pathology, University Hospital, Nantes, France
| | - Jérôme Abadie
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France.,Université de Nantes, Inserm, CRCINA, Nantes, France
| | - Frédérique Nguyen
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France.,Université de Nantes, Inserm, CRCINA, Nantes, France.,Integrated Center for Oncology Nantes/Angers, Saint-Herblain, France
| |
Collapse
|
20
|
Tanaka Y, Koyama K, Horiuchi N, Watanabe K, Kobayashi Y. Relationship between Histological Grade and Histopathological Appearance in Canine Mammary Carcinomas. J Comp Pathol 2020; 179:59-64. [PMID: 32958149 DOI: 10.1016/j.jcpa.2020.07.004] [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: 03/03/2020] [Revised: 06/15/2020] [Accepted: 07/14/2020] [Indexed: 10/23/2022]
Abstract
Canine mammary carcinomas are common tumours in female dogs and histopathological examination has an important role in identifying whether they are benign or malignant. The latest and most commonly used histological grading system was established by Peña et al. (2013) and is based on the extent of tubule formation, nuclear pleomorphism and number of mitoses. Before the establishment of this grading system, tumour size and classical histological indicators of malignancy such as lymphovascular invasion, infiltration into surrounding tissue, necrosis and presence of a micropapillary pattern were important predictors of biological behaviour. However, the system of Peña et al. does not consider tumour size or these histological features. Clarifying the association of these features and histological grade, especially in grade II and III carcinomas, is important. In this study, we confirmed that the system of Peña et al. is effective for predicting biological behaviour and that evaluation of histological features of malignancy reinforced histological grade, as determined by the system of Peña et al., especially in grade II carcinomas.
Collapse
Affiliation(s)
- Y Tanaka
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - K Koyama
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - N Horiuchi
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - K Watanabe
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - Y Kobayashi
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.
| |
Collapse
|
21
|
Pastor N, Ezquerra LJ, Santella M, Caballé NC, Tarazona R, Durán ME. Prognostic significance of immunohistochemical markers and histological classification in malignant canine mammary tumours. Vet Comp Oncol 2020; 18:753-762. [PMID: 32336005 PMCID: PMC7754150 DOI: 10.1111/vco.12603] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 12/11/2022]
Abstract
Canine mammary carcinoma represents a model for the study of human breast cancer, although the prognostic value of various clinical, histological and immunohistochemical parameters has shown contradictory results. A prospective study, through a 4‐year follow‐up, was performed in 77 patients with mammary carcinoma to analyse the association between histological diagnosis, grade of malignancy, peritumoral and vascular invasion. We have also performed immunohistochemistry for the expression of oestrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2) and cyclooxygenase‐2 (COX‐2) that define human biomarkers of disease progression and treatment response. An association between histological diagnosis and clinical stage was observed with a high proportion of complex carcinoma classified as stage I. There was a higher proportion of ER+/PR+/HER2− tumours in stage I. In contrast, triple‐negative tumours (ER−/PR−/HER2−) were found mainly in advanced clinical stages and were associated with vascular and peritumoral invasion. The tumours included in group VII (carcinosarcoma/adenosquamous carcinoma/other special types of carcinoma) had a higher expression of COX‐2. The univariate analysis showed that those patients with complex carcinoma had the lowest incidence of metastases and the highest probability of survival. In contrast, a high proportion of patients with anaplastic/inflammatory carcinoma developed metastases and showed the lowest probability of survival. In addition, the estimated survival time was shorter for those patients with triple‐negative tumours and those with high COX‐2 expression. However, in the multivariate analysis, only the peritumoral invasion maintained its prognostic significance. In conclusion, in our study anaplastic/inflammatory carcinomas had the worst prognosis with a high proportion of triple‐negative tumours in this category.
Collapse
Affiliation(s)
- Nieves Pastor
- Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Luis Javier Ezquerra
- Animal Medicine and Surgery Unit, Department of Animal Medicine, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - Massimo Santella
- Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Nuria C Caballé
- Department of Physics and Mathematics, University of Alcalá, Science Faculty, Alcalá de Henares, Spain
| | - Raquel Tarazona
- Immunology Unit, Department of Physiology, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| | - María Esther Durán
- Anatomy and Comparative Pathological Anatomy, Department of Animal Medicine, Faculty of Veterinary Medicine, University of Extremadura, Cáceres, Spain
| |
Collapse
|
22
|
Rogez B, Pascal Q, Bobillier A, Machuron F, Toillon RA, Tierny D, Chopin V, Le Bourhis X. Expression and Prognostic Significance of Neurotrophins and Their Receptors in Canine Mammary Tumors. Vet Pathol 2020; 57:507-519. [PMID: 32351171 DOI: 10.1177/0300985820921813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Accumulating data highlight the role of neurotrophins and their receptors in human breast cancer. This family includes nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF), both synthetized as proneurotrophins (proNGF and proBDNF). (pro)NGF and (pro)BDNF initiate their biological effects by binding to both their specific receptors TrkA and TrkB, respectively, and the common receptor p75NTR. Currently, no data are available about their expression and potential role in canine mammary tumors. The aim of this study was to investigate expression of proNGF and BDNF as well as their receptors TrkA, TrkB, and p75NTR in canine mammary carcinomas, and to correlate them with clinicopathological parameters (grade, histological type, lymph node status, recurrence, and distant metastasis) and survival. Immunohistochemistry was performed on serial sections of 96 canine mammary carcinomas with antibodies against proNGF, BDNF, TrkA, TrkB, and p75NTR. Of the 96 carcinomas, proNGF expression was detected in 71 (74%), BDNF in 79 (82%), TrkA in 94 (98%), TrkB in 35 (37%), and p75NTR in 44 (46%). No association was observed between proNGF, BDNF, or TrkA expression and either clinicopathological parameters or survival. TrkB and p75NTR expression were associated with favorable clinicopathological parameters as well as better overall survival.
Collapse
Affiliation(s)
- Bernadette Rogez
- University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,OCR (Oncovet Clinical Research), Parc Eurasanté, Loos, France
| | - Quentin Pascal
- OCR (Oncovet Clinical Research), Parc Eurasanté, Loos, France
| | | | | | - Robert-Alain Toillon
- University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France
| | | | - Valérie Chopin
- University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,University of Picardie Jules Verne, Amiens, France.,Contributed equally to this work
| | - Xuefen Le Bourhis
- University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,Contributed equally to this work
| |
Collapse
|
23
|
Bilyi DD, Gerdeva AА, Samoiliuk VV, Suslova NI, Yevtushenko ID. A modern look at the molecular-biological mechanisms of breast tumours in dogs. REGULATORY MECHANISMS IN BIOSYSTEMS 2020. [DOI: 10.15421/022001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
High morbidity and increase in the number of registrations of breast tumours in dogs, their wide application as biological models, discussion of numerous questions of oncogenesis, and the lack of a uniform/unified methodological approach to the study of molecular and biological mechanisms of treatment of cancer determine the relevance of the problem of cancer both in humans and in our domestic companions. The analysis of publications allowed us to establish the following patterns of carcinogenesis. The peculiarities of the biological behaviour of breast tumours depend on their pathomorphological structure. Genetic predisposition to breast cancer is characteristic only in the single breed aspect. Environmental factors are of critical relevance to carcinogenesis : chemical pollutants initiate oncogenesis indirectly – by altering the expression of several receptors, impaired endocrine balance and direct mutagenic effects. Reproductive status plays a key role in the initiation and progression of breast tumours by reducing the expression of estrogen, progesterone and prolactin receptor genes. The inflammatory response that accompanies the neoplasia process is characterized by increased production of cytokines, cyclooxygenase-2, interleukins (IL-1, IL-6, IL-8), vascular endothelial growth receptors, and impaired hemostatic status (oxidative stress), which promotes progression of disease. In breast cancer in dogs, genomic instability leads to genomic aberrations, and subsequently, mutations that support the proliferation, survival and dissemination of neoplastic cells. The initiation and progression of mammary gland tumours is provided by cancer stem cells by disrupting the regulation of precursor cell self-renewal, which also predispose to resistance to chemotherapeutic agents, radiation, and hormonal cancer therapy. The analysis of the publications revealed the major markers of carcinogenesis that could potentially be used as biological targets for the design of modern diagnostic strategies and high-performance therapeutic protocols.
Collapse
|
24
|
Seung BJ, Cho SH, Kim SH, Lim HY, Sur JH. Quantitative analysis of HER2 mRNA expression by RNA in situ hybridization in canine mammary gland tumors: Comparison with immunohistochemistry analysis. PLoS One 2020; 15:e0229031. [PMID: 32059046 PMCID: PMC7021316 DOI: 10.1371/journal.pone.0229031] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/28/2020] [Indexed: 02/06/2023] Open
Abstract
Spontaneously occurring canine mammary gland tumors share many features with human breast cancer, including biological behavior and histologic features. Compared to transgenic murine model, canine models have advantages including naturally occurring models of human diseases and cancer. In humans, breast cancer is divided into molecular subtypes based on ER, PR, and HER2 expression. In contrast with humans, few studies have evaluated these subtypes in canine mammary gland tumors, including expression of HER2. HER2 expression in canine mammary tissues has been further complicated by controversy regarding the antibody’s specificity. This study aimed to investigate c-erbB2 mRNA expression in retrospective formalin-fixed paraffin embedded samples, using RNA in situ hybridization with a novel quantitative assay and to compare this method with immunohistochemistry. Using 48 canine mammary tumor samples and 14 non-neoplastic canine mammary tissues, RNA in situ hybridization was performed with RNAscope® using a canine-specific target gene probe (ERBB2), and quantitative measurement was performed using the housekeeping gene (POLR2A) to calculate the target gene/housekeeping gene ratio. The ratio of ERBB2/POLR2A was quantified using open-source image analysis programs and compared with the immunohistochemistry results. A significant correlation was observed between the HER2 immunohistochemistry score and ERBB2/POLR2A RNA in situ hybridization (P < 0.001). When the HER2 immunohistochemistry score was 3+, significantly higher expression of HER2 mRNA was observed by RNA in situ hybridization. Interestingly, HER2 mRNA was also observed in non-neoplastic mammary tissues by RNA in situ hybridization. This assay potentially facilitates the reliable quantification of mRNA expression levels in retrospective formalin-fixed paraffin-embedded samples. Further studies are required to elucidate the role of HER2 in canine mammary gland tumors and to implement clinical trials in dogs.
Collapse
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
| | - 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
- * E-mail:
| |
Collapse
|
25
|
Ariyarathna H, Thomson N, Aberdein D, Munday JS. Low Stromal Mast Cell Density in Canine Mammary Gland Tumours Predicts a Poor Prognosis. J Comp Pathol 2020; 175:29-38. [PMID: 32138840 DOI: 10.1016/j.jcpa.2019.12.004] [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] [Received: 09/10/2019] [Revised: 11/11/2019] [Accepted: 12/17/2019] [Indexed: 01/06/2023]
Abstract
Tumour histological classification and grade are frequently used to predict the prognosis of canine mammary gland tumours. While these techniques provide some information about tumour behaviour, it is currently difficult to predict which tumours will metastasize. Mast cell density has been shown to predict metastasis in human breast cancer. The present study investigated whether the average mast cell density in 10 high-power (×400) microscopical fields (10 HPFs), evaluated by toluidine blue staining, similarly predicted the behaviour of canine mammary gland tumours. Mast cell density was evaluated in 53 canine mammary neoplasms for which the clinical outcome was known. Stromal mast cell density in malignant tumours that had subsequently developed radiographical evidence of metastasis (n = 21) was significantly lower (P <0.001) than in malignant tumours that did not show evidence of metastases (n = 20) or in benign tumours (n = 12). The density of stromal mast cells that best predicted the disease outcome was ≤10/10 HPFs. Eighty-one percent of malignant tumours with ≤10 stromal mast cells/10 HPFs subsequently metastasized, while only 9.5% of malignant tumours with >10 stromal mast cells/10 HPFs developed metastases. There was a positive correlation between stromal mast cell density and survival time (rs = 0.50, P <0.001). These findings suggest that assessing stromal mast cell density using toluidine blue staining may represent an easy to perform and cost-effective histopathological measure that, in conjunction with classification and grading, could better predict the behaviour of canine mammary neoplasms.
Collapse
Affiliation(s)
- H Ariyarathna
- School of Veterinary Science, Massey University, Palmerston North, New Zealand.
| | - N Thomson
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - D Aberdein
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J S Munday
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| |
Collapse
|
26
|
Machado MCA, Ocarino NM, Serakides R, Moroz LR, Sementilli A, Damasceno KA, Cruz CH, Estrela-Lima A. Triple-negative mammary carcinoma in two male dogs. J Vet Diagn Invest 2020; 32:94-98. [PMID: 31924140 DOI: 10.1177/1040638719898686] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Triple-negative tumors are characterized immunohistochemically by the absence of positivity to sex hormone receptors and to human epidermal growth factor receptor 2. Additionally, they are differentiated into basal-like and non-basal (or null) subtypes, based on the presence of basal cytokeratin expression (CK5/6, 14, and17). Triple-negative subtypes are yet to be characterized in male dogs, to our knowledge. We report herein the clinical and pathologic findings and molecular characterization of carcinoma in the mammary glands of 2 male dogs. Case 1 was diagnosed as a grade II tubulopapillary carcinoma; case 2 was diagnosed as a grade II carcinoma in a mixed tumor. The tumors were characterized phenotypically as triple-negative basal and triple-negative non-basal, respectively.
Collapse
Affiliation(s)
- Marília C A Machado
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| | - Natalia M Ocarino
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| | - Rogéria Serakides
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| | - Ludmila R Moroz
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| | - Angelo Sementilli
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| | - Karine A Damasceno
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| | - Claudia H Cruz
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| | - Alessandra Estrela-Lima
- Programa de Pós-Graduação Ciência Animal nos Trópicos (Machado, Cruz, Estrela-Lima), and Laboratório de Análises Clínicas (Moroz), Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Laboratório de Patologia da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Ocarino, Serakides).,Universidade Metropolitana de Santos, Santos, São Paulo, Brazil (Sementilli).,Laboratório de Patologia Experimental, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil (Damasceno)
| |
Collapse
|
27
|
Chocteau F, Abadie J, Loussouarn D, Nguyen F. Proposal for a Histological Staging System of Mammary Carcinomas in Dogs and Cats. Part 1: Canine Mammary Carcinomas. Front Vet Sci 2019; 6:388. [PMID: 31788485 PMCID: PMC6854021 DOI: 10.3389/fvets.2019.00388] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/21/2019] [Indexed: 01/06/2023] Open
Abstract
Background: Staging of mammary carcinomas of dogs and cats is not only important for prognostic purposes, but also to guide therapy, in particular regarding adjuvant chemotherapy. The classical staging system relies on T, the clinical tumor size, N, the clinical nodal stage, and M, distant metastasis, evaluated by the clinician. However, a more precise and reliable staging system is applied to human stage I–III breast cancer, i.e., without distant metastasis, in which T is replaced by the pathologic tumor size (pT), and N is replaced by the pathologic nodal stage (pN), both evaluated by the pathologist. This staging system is strongly associated with patient outcomes, and is used to select treatment options. The purpose of this study was to design a histologic staging system for Canine Mammary Carcinomas (CMCs, part 1 of this article), and Feline Mammary Carcinomas (part 2), inspired from human oncology, and to assess its association with patient outcomes. Materials and Methods: This retrospective study included 433 female dogs with a surgically removed CMC. Patient outcomes were recorded over a 2-years follow up period. CMCs were staged according to pT (greatest diameter in millimeters on histological slides), lymphovascular invasion (LVI), and pN (confirmed by cytokeratin AE1/AE3 immunohistochemistry). The histological stages were defined as: Stage 0 (CMCs in situ, surrounded by a continuous layer of p63+ myoepithelial cells), Stage I (pT1 ≤ 20 mm, LVI–, pN0–pNX, where pNX refers to the absence of lymph node sample), Stage II (pT2 > 20 mm, LVI–, pN0–pNX), Stage IIIA (pT1, LVI+, and/or pN+), and Stage IIIB (pT2, LVI+, and/or pN+). Results: Disease-free-interval, overall survival and specific survival significantly differed by histological stage. For specific survival, median survival times and hazard ratios (HR) by Cox proportional hazards regression (p < 0.0001) were: Stage 0 (median survival not reached; HR = 1.00; N = 89; 21% of the dogs), Stage I (1,720 days; HR = 3.05; p = 0.0018; N = 81; 19%), Stage II (1,181 days; HR = 4.39; p < 0.0001; N = 79; 18%), Stage IIIA (348 days; HR = 10.59; p < 0.0001; N = 79; 18%), and Stage IIIB (163 days; HR = 16.59; p < 0.0001; N = 105; 24%). Conclusion: The proposed histological staging system (invasiveness, pT, LVI, pN) is a very strong prognostic factor for CMCs.
Collapse
Affiliation(s)
- Florian Chocteau
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | - Jérôme Abadie
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, 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
| | - Frédérique Nguyen
- AMaROC (Animal Cancers, Models for Research in Comparative Oncology), Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Nantes, France.,CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.,Integrated Center for Oncology Nantes/Angers, Nantes, France
| |
Collapse
|
28
|
Varallo GR, Gelaleti GB, Maschio-Signorini LB, Moschetta MG, Lopes JR, De Nardi AB, Tinucci-Costa M, Rocha RM, De Campos Zuccari DAP. Prognostic phenotypic classification for canine mammary tumors. Oncol Lett 2019; 18:6545-6553. [PMID: 31807173 PMCID: PMC6876320 DOI: 10.3892/ol.2019.11052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/09/2019] [Indexed: 12/23/2022] Open
Abstract
Mammary neoplasms are a heterogeneous form of disease, and in order to determine its course and biological features with more accuracy, investigations based on tumor phenotypes are required. The aim of the present study was to propose and validate a phenotypic classification for canine mammary tumors and to assess any association between clinicopathological characteristics, survival and prognosis. For the immunohistochemistry analysis, the primary antibodies against estrogen receptor-α, progesterone receptor, human epidermal growth factor receptor 2 (HER-2)/neu and E-cadherin were used. A total of 110 canine mammary tumors were investigated; 42 tumors were classified as luminal A, 41 as luminal B, 17 as triple-negative and 10 as HER-2-positive. The luminal A and B phenotypes were associated with improved prognosis, whereas HER-2positive and triple-negative tumors were more aggressive, and exhibited a significant association with the occurrence of metastasis, a worse Tumor-Node-Metastasis classification and shorter survival time (P<0.05). In addition, there were different levels of E-cadherin expression intensity observed among the four tumor profiles investigated. Luminal A and B phenotypes presented an upregulation of E-cadherin compared with the HER-2 positive and triple-negative phenotypes (P<0.05). From the results of the present study, the proposed immunohistochemical panel and phenotypic classification techniques could be useful diagnostic tools with a good technical applicability in veterinary oncology. The analysis of E-cadherin expression in the panel of tumor markers allowed a more accurate classification for determining the biological features of the mammary tumor.
Collapse
Affiliation(s)
- Giovanna Rossi Varallo
- Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, São Paulo 14884-900, Brazil
| | - Gabriela Bottaro Gelaleti
- Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Larissa Bazela Maschio-Signorini
- Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Marina Gobbe Moschetta
- Laboratory of Molecular Investigation of Cancer, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto, São José do Rio Preto, São Paulo 15090-000, Brazil
| | - Juliana Ramos Lopes
- Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Andrigo Barboza De Nardi
- Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, São Paulo 14884-900, Brazil
| | - Mirela Tinucci-Costa
- Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, São Paulo 14884-900, Brazil
| | - Rafael Malagoli Rocha
- International Research Center-A.C. Camargo Cancer Center, São Paulo, São Paulo 01508-010, Brazil
| | - Debora Aparecida Pires De Campos Zuccari
- Laboratory of Molecular Investigation of Cancer, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto, São José do Rio Preto, São Paulo 15090-000, Brazil
| |
Collapse
|
29
|
Expression of Tumour Endothelial Marker 8 in Canine Mammary Gland Tumour Cells. J Comp Pathol 2019; 173:30-40. [PMID: 31812171 DOI: 10.1016/j.jcpa.2019.10.001] [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: 07/18/2019] [Revised: 09/17/2019] [Accepted: 10/01/2019] [Indexed: 11/21/2022]
Abstract
The aim of this study was to investigate the expression of tumour endothelial marker 8 (TEM8) in canine mammary gland tumours (MGTs) by immunohistochemistry and to evaluate the association between tumour cell TEM8 expression and tumour histological features, histological grades and expression of luminal and basal/myoepithelial cell markers. TEM8 expression was detected in >60 % of neoplastic epithelial cells in all simple adenomas (n = 25), simple carcinomas (n = 43) and invasive micropapillary carcinomas (n = 5) studied. Six of the 18 solid carcinomas studied showed TEM8 expression in >60% of carcinoma cells present in solid structures and in 12 of the 18 solid carcinomas, <30% of the luminal structure-forming carcinoma cells showed TEM8 expression. TEM8 expression in the neoplastic cells was not associated with histological malignancy in canine MGTs. TEM8+ tumour cells frequently showed the luminal-like phenotype cytokeratin (CK)19+/p63-/α-smooth muscle actin (SMA)-, while most TEM8- tumour cells exhibited the basal-like phenotype CK19-/p63+/αSMA-. These findings indicate that TEM8 may be involved in maintaining the characteristics of luminal cells in canine MGTs and that TEM8 would be useful in identifying the type of neoplastic epithelial cell in MGTs.
Collapse
|
30
|
Canadas-Sousa A, Santos M, Medeiros R, Dias-Pereira P. Single Nucleotide Polymorphisms Influence Histological Type and Grade of Canine Malignant Mammary Tumours. J Comp Pathol 2019; 172:72-79. [DOI: 10.1016/j.jcpa.2019.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/12/2019] [Accepted: 08/23/2019] [Indexed: 01/07/2023]
|
31
|
Schoos A, Knab VM, Gabriel C, Tripolt S, Wagner DA, Bauder B, Url A, Fux DA. In vitro study to assess the efficacy of CDK4/6 inhibitor Palbociclib (PD-0332991) for treating canine mammary tumours. Vet Comp Oncol 2019; 17:507-521. [PMID: 31207004 DOI: 10.1111/vco.12514] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 05/23/2019] [Accepted: 05/27/2019] [Indexed: 12/15/2022]
Abstract
Therapy of canine mammary tumours (CMTs) with classical antitumour drugs is problematic, so better therapeutic options are needed. Palbociclib (PD-0332991) is an innovative and effective anticancer drug for the treatment of breast cancer in women. Palbociclib is an inhibitor of cyclin-dependent kinase 4 (CDK4) and CDK6, which are key regulators of the cell cycle machinery and thus cell proliferation. In the present in vitro study, we investigated whether Palbociclib also represents a candidate drug to combat CMT. For this purpose, the effect of Palbociclib was analysed in P114 and CF41 cells, two CMT cell lines with an endogenous CDK4/6 co-expression. Incubation of P114 and CF41 cells with Palbociclib resulted in a dose- and time-dependent loss of phosphorylated retinoblastoma protein (pRb), a classical CDK4/6 substrate within the cell cycle machinery. Moreover, treatment of CMT cells with Palbociclib-induced cell cycle arrest affected cell viability, prevented colony formation and impaired cell migration activity. Palbociclib also inhibited the growth of P114 and CF41 cell spheroids. Immunohistochemical analysis of canine patient samples revealed a consistent expression of CDK6 in different canine mammary carcinoma types, but an individual and tumour-specific expression pattern of phosphorylated pRb independent of the tumour grade. Together, our findings let us suggest that Palbociclib has antitumour effects on CMT cells and that canine patients may represent potential candidates for treatment with this CDK4/6 inhibitor.
Collapse
Affiliation(s)
- Alexandra Schoos
- Institute of Pharmacology and Toxicology, Unit of Clinical Pharmacology, University of Veterinary Medicine, Vienna, Austria
| | - Vanessa M Knab
- Institute of Pharmacology and Toxicology, Unit of Clinical Pharmacology, University of Veterinary Medicine, Vienna, Austria
| | - Cordula Gabriel
- Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine, Vienna, Austria
| | - Sabrina Tripolt
- Institute of Pharmacology and Toxicology, Unit of Clinical Pharmacology, University of Veterinary Medicine, Vienna, Austria
| | - Daniela A Wagner
- Institute of Pharmacology and Toxicology, Unit of Clinical Pharmacology, University of Veterinary Medicine, Vienna, Austria
| | - Barbara Bauder
- Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine, Vienna, Austria
| | - Angelika Url
- Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine, Vienna, Austria
| | - Daniela A Fux
- Institute of Pharmacology and Toxicology, Unit of Clinical Pharmacology, University of Veterinary Medicine, Vienna, Austria
| |
Collapse
|
32
|
Saad ESA, Lam JSY, Al-Khan AA, Tayebi M, Day MJ, Richardson SJ, Danks JA. A Comparative Review of Mixed Mammary Tumors in Mammals. J Mammary Gland Biol Neoplasia 2019; 24:125-137. [PMID: 30488318 DOI: 10.1007/s10911-018-9422-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 11/21/2018] [Indexed: 11/30/2022] Open
Abstract
Mixed tumors are characterized by the histological identification of two or more cell types. Commonly, a mixture of epithelial and myoepithelial cells is included in abundant stroma, which can consist of myxoid, chondroid or bony matrices. Spontaneously arising mixed tumors are rare lesions in the human breast but are common in human salivary glands and canine mammary glands. Subtle histopathological characteristics and overlapping attributes of malignant lesions with other benign lesions can lead to a diagnostic challenge. Mixed tumors can present as benign or malignant. While malignant mixed tumors are quite rare in the human breast they have a poor prognosis. Benign mixed mammary tumors occur more frequently in female dogs than in humans and are usually associated with a good prognosis. This review will provide a comprehensive overview of mixed mammary tumors, across various mammalian species.
Collapse
Affiliation(s)
- Eman S A Saad
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Jacqueline S Y Lam
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
- Laverty Pathology, Macquarie Park, Sydney, Australia
| | - Awf A Al-Khan
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Mourad Tayebi
- School of Medicine, Western Sydney University, Campbelltown, New South Wales, Australia
| | - Michael J Day
- School of Veterinary and Life Sciences, Murdoch University, Western Australia, Australia
| | - Samantha J Richardson
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia
| | - Janine A Danks
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, Australia.
- Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia.
| |
Collapse
|
33
|
Overexpression of Kynurenine 3-Monooxygenase Correlates with Cancer Malignancy and Predicts Poor Prognosis in Canine Mammary Gland Tumors. JOURNAL OF ONCOLOGY 2019; 2019:6201764. [PMID: 31186637 PMCID: PMC6521384 DOI: 10.1155/2019/6201764] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 04/08/2019] [Indexed: 12/01/2022]
Abstract
Tumor biomarkers are developed to indicate tumor status, clinical outcome, or prognosis. Since currently there are no effective biomarkers for canine mammary tumor (CMT), this study intended to verify whether kynurenine 3-monooxygenase (KMO), one of the key enzymes involved in tryptophan catabolism, is competent for predicting prognosis in patients with CMT. By investigating a series of 86 CMT clinical cases, we found that both gene and protein expression of KMO discriminated malignant from benign CMTs and was significantly higher in stage IV and V tumors than in lower-stage CMTs. About 73.7% of malignant CMTs showed strong expression of KMO which correlated with lower overall survival rates in patients. Further, downregulation of KMO activity significantly inhibited cell proliferation of CMT cells. Taken together, the findings indicated that KMO is a potential biomarker for tumor diagnosis, and this might open up new perspectives for clinical applications of CMT.
Collapse
|
34
|
Caicedo Martínez JA, Iregui Castro CA. Caracterización de la expresión de galectina-3 mediante inmunohistoquímica en lesiones intraepiteliales de glándula mamaria de perras sin evidencia de tumor. REVISTA DE LA FACULTAD DE MEDICINA VETERINARIA Y DE ZOOTECNIA 2019. [DOI: 10.15446/rfmvz.v66n2.82428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Las lesiones intraepiteliales (LIEs) son anormalidades morfológicas locales de los ductosy los lobulillos de la glándula mamaria que incrementan el riesgo de cáncer. Los programasde detección temprana de cáncer de seno han incrementado la identificaciónde LIEs. En este sentido, en perras se ha propuesto las LIEs como modelo comparativocon humanos. La galectina-3 está involucrada con la progresión del cáncer en mujeresy hembras caninas pero su papel en el comportamiento biológico de las neoplasias escontradictorio según la célula de origen. El objetivo de este trabajo fue caracterizar laexpresión de la galectina-3 por medio de inmunohistoquímica en 19 glándulas mamarias(GM) de seis perras sin evidencia de tumor que contenían 50 tipos de LIEs y 7 carcinomasinvasivos, teniendo en cuenta el porcentaje de células positivas y la intensidaddel color de la inmunoreacción. No hubo inmunomarcación para galectina-3 en lasadenosis, las hiperplasias ductales usuales, la hiperplasia lobular atípica, las lesiones decélulas columnares, los carcinomas complejos o las hiperplasias complejas. Un papiloma/adenoma con hiperplasia de acinos tuvo inmunomarcación multifocal en 11–50% delas células con moderada intensidad. Dos carcinomas in situ del subtipo lobular (unode grado histológico nuclear intermedio y el otro de alto grado) tuvieron marcación en10% de las células, pero uno tuvo intensidad baja y el otro, intensidad moderada. Loshallazgos sugieren que el papel de la galectina-3 es poco importante en la iniciación delas LIEs, pero sugieren que es una proteína de interés en la progresión de estas lesionesque posiblemente interactúa en el comportamiento biológico de esta enfermedad.
Collapse
|
35
|
Rogez B, Pascal Q, Bobillier A, Machuron F, Lagadec C, Tierny D, Le Bourhis X, Chopin V. CD44 and CD24 Expression and Prognostic Significance in Canine Mammary Tumors. Vet Pathol 2018; 56:377-388. [PMID: 30558511 DOI: 10.1177/0300985818813653] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CD44+/CD24- phenotype has been used to identify human and canine mammary cancer stem-like cells. In canine mammary tumors, CD44+/CD24- phenotype has been associated with high grade and lymph node infiltration. However, several studies have reported opposing results regarding the clinical significance of phenotypic groups formed by the combination of CD44 and CD24 in both human and canine mammary tumors. So far, no study has investigated the correlation between these phenotypes and survival in dogs. The aim of this study was to investigate the expression and distribution of CD44 and CD24 in canine mammary carcinomas and to correlate them with histological diagnosis and survival in a well-characterized cohort. Immunohistochemistry was performed in 96 mammary carcinomas with antibodies against CD44 and CD24. Expression of CD44+ and CD44+/CD24- phenotype was detected in 75 of 96 (78%) and 63 of 96 (65.6%) carcinomas, respectively. Their expression was associated with tumor type, occurring more often in tubular complex carcinomas than in solid carcinomas. CD44+/CD24- phenotype was associated with a better overall survival ( P = .001). CD24+ expression was detected in 52 of 96 tumors (54%) and CD44-/CD24+ phenotype in 39 of 96 tumors (40.6%). Both were associated with poor clinicopathological parameters (high grade, and emboli). No correlation with overall survival was observed. CD44+/CD24- expression was associated with a better prognosis and occurred at high frequency and high level, indicating that this phenotype is not suitable to detect cancer stem cells in canine mammary carcinomas. Although further studies are needed, our results suggest that CD24 may constitute a valuable marker of poor prognosis for canine mammary carcinomas.
Collapse
Affiliation(s)
- Bernadette Rogez
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,2 OCR (Oncovet Clinical Research), Parc Eurasanté, Lille Métropole, Loos, France
| | - Quentin Pascal
- 2 OCR (Oncovet Clinical Research), Parc Eurasanté, Lille Métropole, Loos, France
| | - Audrey Bobillier
- 3 VetAgro Sup, Campus Vétérinaire de Lyon, Marcy l'Etoile, France
| | - François Machuron
- 4 University of Lille, CHU Lille, EA 2694-Santé publique: épidémiologie et qualité des soins, Lille, France
| | - Chann Lagadec
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France
| | - Dominique Tierny
- 2 OCR (Oncovet Clinical Research), Parc Eurasanté, Lille Métropole, Loos, France
| | - Xuefen Le Bourhis
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,These authors contributed equally to this work
| | - Valérie Chopin
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,5 University of Picardie Jules Verne, UFR Sciences, Amiens, France.,These authors contributed equally to this work
| |
Collapse
|
36
|
Seung BJ, Lim HY, Shin JI, Kim HW, Cho SH, Kim SH, Sur JH. CD204-Expressing Tumor-Associated Macrophages Are Associated With Malignant, High-Grade, and Hormone Receptor-Negative Canine Mammary Gland Tumors. Vet Pathol 2018; 55:417-424. [PMID: 29343199 DOI: 10.1177/0300985817750457] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Tumor-associated macrophages (TAMs) are an important component of leukocyte infiltration in tumors. TAMs can be classified into M1 and M2 phenotypes. In the present study, the expression of CD204, an M2-polarized macrophage receptor, was investigated by immunohistochemistry in the area surrounding TAMs in 101 cases of canine mammary gland tumor (CMT). We examined the relationship between M2-polarized TAMs and malignancy, histological subtype, histological grade, molecular subtype, hormone receptor (HR) status, and clinical obesity indices. The mean number of CD204-positive macrophages was significantly higher in malignant CMTs than in benign CMTs ( P = .000). The number of CD204-positive macrophages differed significantly between histological grades ( P = .000) and were significantly higher in grade III than in grades I and II. Moreover, the mean number of CD204-positive macrophages was significantly higher in HR-negative malignant CMTs than in HR-positive malignant CMTs ( P = .035) and in malignant CMTs with lymphatic invasion compared to malignant CMTs without lymphatic invasion ( P = .000). These findings suggest that CD204-positive macrophages might affect the development and behavior of CMTs and highlight the potential of CD204 as a prognostic factor.
Collapse
Affiliation(s)
- Byung-Joon Seung
- 1 Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Gwangjin-gu, Seoul, Republic of Korea
| | - Ha-Young Lim
- 1 Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Gwangjin-gu, Seoul, Republic of Korea
| | - Jong-Il Shin
- 1 Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Gwangjin-gu, Seoul, Republic of Korea
| | - Hyun-Woo Kim
- 1 Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Gwangjin-gu, Seoul, Republic of Korea
| | - Seung-Hee Cho
- 1 Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Gwangjin-gu, Seoul, Republic of Korea
| | - Soo-Hyeon Kim
- 1 Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Gwangjin-gu, Seoul, Republic of Korea
| | - Jung-Hyang Sur
- 1 Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Gwangjin-gu, Seoul, Republic of Korea
| |
Collapse
|
37
|
Abadie J, Nguyen F, Loussouarn D, Peña L, Gama A, Rieder N, Belousov A, Bemelmans I, Jaillardon L, Ibisch C, Campone M. Canine invasive mammary carcinomas as models of human breast cancer. Part 2: immunophenotypes and prognostic significance. Breast Cancer Res Treat 2018; 167:459-468. [PMID: 29063312 PMCID: PMC5790838 DOI: 10.1007/s10549-017-4542-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 10/14/2017] [Indexed: 12/15/2022]
Abstract
PURPOSE Relevant animal models of human breast cancer are currently needed, especially for the aggressive triple-negative breast cancer subtype. Recent studies and our results (Part 1) indicate that spontaneous canine invasive mammary carcinomas (CMCs) resemble human breast cancer by clinics and pathology as well as behavior and prognostic indicators. We hypothesized that the current molecular classifications of human breast cancer, used for therapeutic decision, could be relevant to dogs. METHODS Three hundred and fifty female dogs with spontaneous CMC and a 2-year follow-up were retrospectively included. By immunohistochemistry, CMCs were classified according to Nielsen (Clin Cancer Res 10:5367-5374, 2004) and Blows (PlosOne doi: 10.1371/journal.pmed.1000279, 2010) into the subtypes of human breast cancer. RESULTS Four immunophenotypes were defined either according to Nielsen classification (luminal A 14.3%, luminal B 9.4%, triple-negative basal-like 58.6%, and triple-negative nonbasal-like 17.7% CMCs); or to Blows classification (luminal 1-: 11.4%, luminal 1+: 12.3%, Core basal phenotype: 58.6%, and five-negative phenotype: 17.7%). No HER2-overexpressing CMC as defined by a 3 + immunohistochemical score was observed in our cohort. By univariate and multivariate analyses, both immunophenotypical classifications applied to CMCs showed strong prognostic significance: luminal A or luminal 1+ CMCs showed a significantly longer disease-free interval (HR = 0.46), Overall (HR = 0.47), and Specific Survival (HR = 0.56) compared to triple-negative carcinomas, after adjustment for stage. CONCLUSIONS In our cohort, triple-negative CMCs largely predominated (76%), were much more prevalent than in human beings, and showed an aggressive natural behavior after mastectomy. Dogs are thus potent valuable spontaneous models to test new therapeutic strategies for this particular subtype of breast cancer.
Collapse
Affiliation(s)
- Jérôme Abadie
- Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Animal cancers, Models for Research in Comparative Oncology (AMaROC), Site de la Chantrerie, Route de Gachet, CS40706, 44307, Nantes, France.
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France.
| | - Frédérique Nguyen
- Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Animal cancers, Models for Research in Comparative Oncology (AMaROC), Site de la Chantrerie, 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
| | - Laura Peña
- Department of Animal Medicine, Surgery and Pathology, Complutense University of Madrid, Madrid, Spain
| | - 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
| | | | - Laëtitia Jaillardon
- Oniris, Nantes Atlantic College of Veterinary Medicine and Food Sciences, LDHVet, Nantes, France
| | - Catherine Ibisch
- Oniris, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Animal cancers, Models for Research in Comparative Oncology (AMaROC), Site de la Chantrerie, Route de Gachet, CS40706, 44307, Nantes, France
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France
| | - Mario Campone
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, France
- Institut de Cancérologie de l'Ouest, Angers, France
| |
Collapse
|
38
|
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.
Collapse
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
| |
Collapse
|
39
|
Kabir FML, DeInnocentes P, Agarwal P, Mill CP, Riese Nd DJ, Bird RC. Estrogen receptor-α, progesterone receptor, and c- erbB/HER-family receptor mRNA detection and phenotype analysis in spontaneous canine models of breast cancer. J Vet Sci 2017; 18:149-158. [PMID: 27515268 PMCID: PMC5489461 DOI: 10.4142/jvs.2017.18.2.149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 06/02/2016] [Accepted: 07/21/2016] [Indexed: 02/02/2023] Open
Abstract
Well characterized, stable, p16-defective canine mammary cancer (CMT) cell lines and normal canine mammary epithelial cells were used to investigate expression of the major breast cancer-specific hormone receptors estrogen receptor alpha (ER1) and progesterone receptor (PR) as well as luminal epithelial-specific proto-oncogenes encoding c-erbB-1 (epidermal growth factor receptor/EGFr), c-erbB-2/HER2, c-erbB-3, and c-erbB-4 receptors. The investigation developed and validated quantitative reverse transcriptase polymerase chain reaction assays for each transcript to provide rapid assessment of breast cancer phenotypes for canine cancers, based on ER1, PR, and c-erbB-2/HER2 expressions, similar to those in human disease. Roles for relatively underexplored c-erbB-3 and c-erbB-4 receptor expressions in each of these breast cancer phenotypes were also evaluated. Each quantitative assay was validated by assessment of amplicon size and DNA sequencing following amplification. Differential expression of ER1, PR, and c-erbB-2 in CMT cell lines clearly defined distinct human-like breast cancer phenotypes for a selection of CMT-derived cell lines. Expression profiles for EGFr family genes c-erbB-3 and c-erbB-4 in CMT models also provided an enriched classification of canine breast cancer identifying new extended phenotypes beyond the conventional luminal-basal characterization used in human breast cancer.
Collapse
Affiliation(s)
- Farruk M Lutful Kabir
- Auburn University Research Initiative in Cancer (AURIC), Department of Pathobiology, College of Veterinary Medicine, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - Patricia DeInnocentes
- Auburn University Research Initiative in Cancer (AURIC), Department of Pathobiology, College of Veterinary Medicine, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - Payal Agarwal
- Scott-Ritchey Research Center, College of Veterinary Medicine, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - Christopher P Mill
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - David J Riese Nd
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| | - R Curtis Bird
- Auburn University Research Initiative in Cancer (AURIC), Department of Pathobiology, College of Veterinary Medicine, Harrison School of Pharmacy, Auburn University, AL 36849, USA
| |
Collapse
|
40
|
Saad E, Milley K, Al-Khan A, Nimmo J, Bacci B, Tayebi M, Day M, Richardson S, Danks J. Canine Mixed Mammary Tumour as a Model for Human Breast Cancer with Osseous Metaplasia. J Comp Pathol 2017; 156:352-365. [DOI: 10.1016/j.jcpa.2017.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/17/2017] [Accepted: 03/27/2017] [Indexed: 01/04/2023]
|
41
|
Rasotto R, Berlato D, Goldschmidt MH, Zappulli V. Prognostic Significance of Canine Mammary Tumor Histologic Subtypes: An Observational Cohort Study of 229 Cases. Vet Pathol 2017; 54:571-578. [DOI: 10.1177/0300985817698208] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Histopathology is considered the gold standard diagnostic method for canine mammary tumors. In 2011, a new histologic classification for canine mammary tumors was proposed. The present study was a 2-year prospective study that validated the 2011 classification as an independent prognostic indicator with multivariate analysis in a population of 229 female dogs, identifying subtype-specific median survival times (MST) and local recurrence/distant metastasis rates. Dogs with benign tumors and carcinoma arising in benign mixed tumors all had an excellent prognosis. Dogs with complex carcinoma and simple tubular carcinoma also experienced prolonged survival. Those with simple tubulopapillary carcinoma, intraductal papillary carcinoma, and carcinoma and malignant myoepithelioma had a more than 10-fold higher risk of tumor-related death. The prognosis was even worse for adenosquamous carcinoma (MST = 18 months), comedocarcinoma (MST = 14 months), and solid carcinoma (MST = 8 months). The most unfavorable outcome was for anaplastic carcinoma (MST = 3 months) and carcinosarcoma (MST = 3 months), which also had the highest metastatic rates (89% and 100%, respectively). Adenosquamous carcinoma exhibited the highest local recurrence rate (50%). In the same canine population, the tumor diameter was recognized as a strong predictor of local recurrence/distant metastasis and an independent prognosticator of survival in the multivariate analysis. Excision margins were predictive only of local recurrence, whereas lymphatic invasion and histologic grade were predictive of local recurrence/distant metastasis and survival, although only in univariate analyses. In conclusion, this study validated the 2011 classification scheme and provided information to be used in the clinical setting and as the basis for future prognostic studies.
Collapse
Affiliation(s)
| | - Davide Berlato
- Centre for Small Animal Studies, Animal Health Trust, New Market, Suffolk, UK
| | - Michael H. Goldschmidt
- Department of Pathobiology, Laboratory of Pathology and Toxicology, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, PA, USA
| | - Valentina Zappulli
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
| |
Collapse
|
42
|
Morris JS. Genomic and proteomic profiling for cancer diagnosis in dogs. Vet J 2016; 215:101-9. [DOI: 10.1016/j.tvjl.2016.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/01/2015] [Accepted: 01/01/2016] [Indexed: 11/25/2022]
|
43
|
Soares M, Madeira S, Correia J, Peleteiro M, Cardoso F, Ferreira F. Molecular based subtyping of feline mammary carcinomas and clinicopathological characterization. Breast 2016; 27:44-51. [DOI: 10.1016/j.breast.2016.02.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/05/2016] [Accepted: 02/29/2016] [Indexed: 12/27/2022] Open
|
44
|
Carvalho MI, Pires I, Prada J, Lobo L, Queiroga FL. Ki-67 and PCNA Expression in Canine Mammary Tumors and Adjacent Nonneoplastic Mammary Glands: Prognostic Impact by a Multivariate Survival Analysis. Vet Pathol 2016; 53:1138-1146. [PMID: 27162119 DOI: 10.1177/0300985816646429] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The assessment of tumor proliferation has been considered a determining prognostic factor in canine mammary tumors (CMTs). However, no studies have assessed the prognostic importance of proliferation in adjacent nonneoplastic mammary glands. We included 64 CMTs (21 benign and 43 malignant) and studied the proliferation index (PI) of Ki-67 and proliferating cell nuclear antigen (PCNA) together with several clinicopathological characteristics. A positive and statistically significant correlation between the PI of Ki-67 and PCNA in tumors and adjacent nonneoplastic mammary glands was observed in benign and malignant tumors. Tumor size, skin ulceration, histological type, mitotic index, nuclear grade, differentiation grade, histological grade of malignancy, lymph node metastasis, Ki-67, and PCNA expression in tumors and adjacent nonneoplastic mammary glands were statistically associated with overall survival by univariate analysis in malignant cases (n = 43). Histological grade of malignancy and high intratumoral PCNA retained their significance by multivariate analysis arising as independent predictors of overall survival. Interestingly, the PI of Ki-67 and PCNA of adjacent nontumoral mammary glands were associated with clinicopathological features of tumor aggressiveness and shorter overall survival, demonstrating the need to better explore this adjacent non-neoplastic tissue.
Collapse
Affiliation(s)
- M I Carvalho
- CECAV, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - I Pires
- CECAV, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - J Prada
- CECAV, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - L Lobo
- Hospital Veterinário do Porto, Porto, Portugal Faculdade de Medicina Veterinária, Universidade Lusófona de Humanidades e Tecnologias, Lisboa, Portugal Center for the Study of Animal Sciences, CECA-ICETA, University of Porto, Porto, Portugal
| | - F L Queiroga
- Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal Center for the Study of Animal Sciences, CECA-ICETA, University of Porto, Porto, Portugal Center for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| |
Collapse
|
45
|
Lutful Kabir FM, Alvarez CE, Bird RC. Canine Mammary Carcinomas: A Comparative Analysis of Altered Gene Expression. Vet Sci 2015; 3:vetsci3010001. [PMID: 29056711 PMCID: PMC5644615 DOI: 10.3390/vetsci3010001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 11/19/2015] [Accepted: 12/21/2015] [Indexed: 12/19/2022] Open
Abstract
Breast cancer represents the second most frequent neoplasm in humans and sexually intact female dogs after lung and skin cancers, respectively. Many similar features in human and dog cancers including, spontaneous development, clinical presentation, tumor heterogeneity, disease progression and response to conventional therapies have supported development of this comparative model as an alternative to mice. The highly conserved similarities between canine and human genomes are also key to this comparative analysis, especially when compared to the murine genome. Studies with canine mammary tumor (CMT) models have shown a strong genetic correlation with their human counterparts, particularly in terms of altered expression profiles of cell cycle regulatory genes, tumor suppressor and oncogenes and also a large group of non-coding RNAs or microRNAs (miRNAs). Because CMTs are considered predictive intermediate models for human breast cancer, similarities in genetic alterations and cancer predisposition between humans and dogs have raised further interest. Many cancer-associated genetic defects critical to mammary tumor development and oncogenic determinants of metastasis have been reported and appear to be similar in both species. Comparative analysis of deregulated gene sets or cancer signaling pathways has shown that a significant proportion of orthologous genes are comparably up- or down-regulated in both human and dog breast tumors. Particularly, a group of cell cycle regulators called cyclin-dependent kinase inhibitors (CKIs) acting as potent tumor suppressors are frequently defective in CMTs. Interestingly, comparative analysis of coding sequences has also shown that these genes are highly conserved in mammals in terms of their evolutionary divergence from a common ancestor. Moreover, co-deletion and/or homozygous loss of the INK4A/ARF/INK4B (CDKN2A/B) locus, encoding three members of the CKI tumor suppressor gene families (p16/INK4A, p14ARF and p15/INK4B), in many human and dog cancers including mammary carcinomas, suggested their important conserved genetic order and localization in orthologous chromosomal regions. miRNAs, as powerful post-transcriptional regulators of most of the cancer-associated genes, have not been well evaluated to date in animal cancer models. Comprehensive expression profiles of miRNAs in CMTs have revealed their altered regulation showing a strong correlation with those found in human breast cancers. These genetic correlations between human and dog mammary cancers will greatly advance our understanding of regulatory mechanisms involving many critical cancer-associated genes that promote neoplasia and contribute to the promising development of future therapeutics.
Collapse
Affiliation(s)
- Farruk M Lutful Kabir
- Auburn University Research Initiative in Cancer (AURIC), Department of Pathobiology, College of Veterinary Medicine, Auburn University, AL 36849, USA.
- Current address: Department of Pediatrics, Division of Pulmonology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Carlos E Alvarez
- Center for Molecular and Human Genetics, The Research Institute at Nationwide Children's Hospital Departments of Pediatrics and Veterinary Clinical Sciences, The Ohio State University Colleges of Medicine and Veterinary Medicine, Columbus, OH 43205, USA.
| | - R Curtis Bird
- Auburn University Research Initiative in Cancer (AURIC), Department of Pathobiology, College of Veterinary Medicine, Auburn University, AL 36849, USA.
| |
Collapse
|
46
|
Sánchez-Céspedes R, Millán Y, Guil-Luna S, Reymundo C, Espinosa de Los Monteros A, Martín de Las Mulas J. Myoepithelial cells in canine mammary tumours. Vet J 2015; 207:45-52. [PMID: 26639832 DOI: 10.1016/j.tvjl.2015.10.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 10/07/2015] [Accepted: 10/10/2015] [Indexed: 02/05/2023]
Abstract
Mammary tumours are the most common neoplasms of female dogs. Compared to mammary tumours of humans and cats, myoepithelial (ME) cell involvement is common in canine mammary tumours (CMT) of any subtype. Since ME cell involvement in CMT influences both histogenetic tumour classification and prognosis, correct identification of ME cells is important. This review describes immunohistochemical methods for identification of canine mammary ME cells used in vivo. In addition, phenotypic and genotypic methods to isolate ME cells for in vitro studies to analyse tumour-suppressor protein production and gene expression are discussed. The contribution of ME cells to both histogenetic classifications and the prognosis of CMT is compared with other species and the potential use of ME cells as a method to identify carcinoma in situ is discussed.
Collapse
Affiliation(s)
| | - Yolanda Millán
- Department of Comparative Pathology, University of Córdoba, 14014 Córdoba, Spain
| | - Silvia Guil-Luna
- Department of Comparative Pathology, University of Córdoba, 14014 Córdoba, Spain
| | - Carlos Reymundo
- Department of Pathology, University of Córdoba, 14071 Córdoba, Spain
| | - Antonio Espinosa de Los Monteros
- Unit of Histology and Animal Pathology, Institute for Animal Health, Veterinary School, University of Las Palmas de Gran Canaria, 35413 Las Palmas, Spain
| | | |
Collapse
|
47
|
Gunnes G, Borge KS, Lingaas F. A statistical assessment of the biological relationship between simultaneous canine mammary tumours. Vet Comp Oncol 2015; 15:355-365. [DOI: 10.1111/vco.12170] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 04/29/2015] [Accepted: 06/07/2015] [Indexed: 12/15/2022]
Affiliation(s)
- G. Gunnes
- Section for Anatomy and Pathology, Faculty of Veterinary Medicine and Biosciences; Norwegian University of Life Sciences; Oslo Norway
| | - K. S. Borge
- Section for Genetics, Faculty of Veterinary Medicine and Biosciences; Norwegian University of Life Sciences; Oslo Norway
| | - F. Lingaas
- Section for Genetics, Faculty of Veterinary Medicine and Biosciences; Norwegian University of Life Sciences; Oslo Norway
| |
Collapse
|
48
|
Jaillardon L, Abadie J, Godard T, Campone M, Loussouarn D, Siliart B, Nguyen F. The dog as a naturally-occurring model for insulin-like growth factor type 1 receptor-overexpressing breast cancer: an observational cohort study. BMC Cancer 2015; 15:664. [PMID: 26449867 PMCID: PMC4598970 DOI: 10.1186/s12885-015-1670-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 10/01/2015] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Dogs spontaneously develop invasive mammary carcinoma with a high prevalence of the triple-negative (TN) subtype (lack of ER-Estrogen Receptor and PR-Progesterone Receptor expression, lack of HER2-Human Epidermal Growth Factor Receptor 2 overexpression), making this animal model relevant for investigating new therapeutic pathways. Insulin-like growth factor Type-1 receptor (IGF1R) is frequently overexpressed in primary human breast cancers, with a growing role in the TN phenotype. The purpose of this study was to investigate the Dog as a candidate model for IGF1R-overexpressing mammary carcinoma. METHODS 150 bitches with canine mammary carcinoma (CMC) and a known 2-year follow-up were retrospectively included. IGF1R expression was assessed by immunohistochemistry (IHC) using a similar scoring system as for HER2 in breast cancer. The prognostic value of the IGF1R expression was assessed in terms of overall and specific survival as well as disease-free interval (DFI). RESULTS 47 CMC (31 %) were classified as luminal and 103 (69 %) as triple-negative (TN-CMC). 41 % of CMC overexpressed IGF1R (IHC score 3+) of which 76 % were TN-CMC and 62 % grade III. IGF1R overexpression was associated with aggressive features including lymphovascular invasion, histological grade III, low ER expression and the TN phenotype. Univariate and multivariate analyses revealed that IGF1R overexpression was associated with shorter overall and specific survivals and shorter DFI in TN-CMC. CONCLUSIONS IGF1R overexpression is common and related to a poor outcome in canine invasive mammary carcinoma, particularly in the triple negative subtype, as in human breast cancer. Preclinical studies using the Dog as a spontaneous animal model could be considered to investigate new therapies targeting IGF1R in triple-negative breast cancer.
Collapse
Affiliation(s)
- Laetitia Jaillardon
- Oniris, Université Nantes-Angers-Le Mans, Department of Human Health, Biomedical Research and Animal Models, AMaROC Unit and LDHvet laboratory, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Site de la Chantrerie, Route de Gachet, Nantes, F-44307, France.
| | - Jérome Abadie
- Oniris, Université Nantes-Angers-Le Mans, Department of Human Health, Biomedical Research and Animal Models, AMaROC Unit and LDHvet laboratory, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Site de la Chantrerie, Route de Gachet, Nantes, F-44307, France.
| | - Tiffanie Godard
- Oniris, Université Nantes-Angers-Le Mans, Department of Human Health, Biomedical Research and Animal Models, AMaROC Unit and LDHvet laboratory, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Site de la Chantrerie, Route de Gachet, Nantes, F-44307, France.
| | - Mario Campone
- Institut de Cancérologie de l'Ouest, Boulevard Jacques Monod Saint Herblain-Nantes cedex, Centre de Recherche du Cancer Nantes-Angers, UMR-INSERM U892/CNRS 6299, Nantes, F-44805, France.
| | - Delphine Loussouarn
- Hopital G&R Laënnec, Boulevard Jacques Monod, Saint Herblain-Nantes cedex, Nantes, F-44093, France.
| | - Brigitte Siliart
- Oniris, Université Nantes-Angers-Le Mans, Department of Human Health, Biomedical Research and Animal Models, AMaROC Unit and LDHvet laboratory, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Site de la Chantrerie, Route de Gachet, Nantes, F-44307, France.
| | - Frédérique Nguyen
- Oniris, Université Nantes-Angers-Le Mans, Department of Human Health, Biomedical Research and Animal Models, AMaROC Unit and LDHvet laboratory, Nantes Atlantic College of Veterinary Medicine, Food Science and Engineering, Site de la Chantrerie, Route de Gachet, Nantes, F-44307, France.
| |
Collapse
|
49
|
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]
|
50
|
Shin JI, Lim HY, Kim HW, Seung BJ, Sur JH. Analysis of Hypoxia-Inducible Factor-1α Expression Relative to Other Key Factors in Malignant Canine Mammary Tumours. J Comp Pathol 2015; 153:101-10. [PMID: 26145724 DOI: 10.1016/j.jcpa.2015.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 05/21/2015] [Accepted: 05/27/2015] [Indexed: 12/13/2022]
Abstract
Hypoxia-inducible factor (HIF)-1α plays important physiological roles, but is also of significance in carcinogenesis in man and animals. This study aimed to identify HIF-1α expression in malignant canine mammary tumours (CMTs) and to find correlations with other key factors by using immunohistochemistry (IHC). The histological classification, grading and evaluation of lymphatic invasion were achieved by examining sections stained by haematoxylin and eosin. Determination of molecular subtype, expression of HIF-1α, oestrogen receptor (OR), progesterone receptor (PR), human epidermal growth factor receptor (HER)-2, Ki67, vascular endothelial growth factor (VEGF) and E-cadherin was evaluated by IHC in 87 samples of malignant CMTs. HIF-1α expression correlated significantly with histological type, grade of cancer, negativity for OR and expression of Ki67 and VEGF. Lymphatic invasion, molecular subtype, PR, HER-2 and E-cadherin levels did not significantly correlate with HIF-1α expression. The results of this study imply that HIF-1α may potentially play a role in increased malignancy of CMTs, as it does in human breast cancer.
Collapse
Affiliation(s)
- J-I Shin
- Department of Veterinary Pathology, Small Animal Tumour Diagnostic Center, College of Veterinary Medicine, Konkuk University, 120 Neuengdong-ro, Gwangjin-gu, Seoul, Republic of Korea
| | - H-Y Lim
- Department of Veterinary Pathology, Small Animal Tumour Diagnostic Center, College of Veterinary Medicine, Konkuk University, 120 Neuengdong-ro, Gwangjin-gu, Seoul, Republic of Korea
| | - H-W Kim
- Department of Veterinary Pathology, Small Animal Tumour Diagnostic Center, College of Veterinary Medicine, Konkuk University, 120 Neuengdong-ro, Gwangjin-gu, Seoul, Republic of Korea
| | - B-J Seung
- Department of Veterinary Pathology, Small Animal Tumour Diagnostic Center, College of Veterinary Medicine, Konkuk University, 120 Neuengdong-ro, Gwangjin-gu, Seoul, Republic of Korea
| | - J-H Sur
- Department of Veterinary Pathology, Small Animal Tumour Diagnostic Center, College of Veterinary Medicine, Konkuk University, 120 Neuengdong-ro, Gwangjin-gu, Seoul, Republic of Korea.
| |
Collapse
|