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da Fonseca IIM, Nagamine MK, Gentile LB, Nishiya AT, da Fonseca JM, de Oliveira Massoco C, Ward JM, Liu S, Leppla SH, Dagli MLZ. Targeting canine mammary neoplastic epithelial cells with a reengineered anthrax toxin: first study. Vet Res Commun 2024:10.1007/s11259-024-10400-5. [PMID: 38805149 DOI: 10.1007/s11259-024-10400-5] [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: 01/08/2024] [Accepted: 04/29/2024] [Indexed: 05/29/2024]
Abstract
Mammary tumors are the most frequent type of neoplasms in intact female dogs. New therapies that target neoplastic cells without affecting normal cells are highly sought. The Bacillus anthracis toxin has been reengineered to target tumor cells that express urokinase plasminogen activators and metalloproteinases. In previous studies carried out in our laboratory, the reengineered anthrax toxin had inhibitory effects on canine oral mucosal melanoma and canine osteosarcoma cells. In this study, five canine neoplastic epithelial cell lines (four adenocarcinomas and one adenoma) and one non-neoplastic canine mammary epithelial cell line were treated with different concentrations of reengineered anthrax toxin components. Cell viability was quantified using an MTT assay and half-maximal inhibitory concentration (IC50) values. Cell lines were considered sensitive when the IC50 was lower than 5000 ng/ml. One canine mammary adenocarcinoma cell line and one mammary adenoma cell line showed significantly decreased viability after treatment, whereas the non-neoplastic cell line was resistant. We conclude that the reengineered anthrax toxin may be considered a targeted therapy for canine mammary neoplasms while preserving normal canine mammary epithelial cells.
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Affiliation(s)
- Ivone Izabel Mackowiak da Fonseca
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP, 05508-270, Brazil
| | - Márcia Kazumi Nagamine
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP, 05508-270, Brazil
| | - Luciana Boffoni Gentile
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP, 05508-270, Brazil
| | - Adriana Tomoko Nishiya
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP, 05508-270, Brazil
| | - Jonathan Mackowiak da Fonseca
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP, 05508-270, Brazil
| | - Cristina de Oliveira Massoco
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP, 05508-270, Brazil
| | | | - Shihui Liu
- Aging Institute and Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Stephen Howard Leppla
- Microbial Pathogenesis Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Maria Lucia Zaidan Dagli
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP, 05508-270, Brazil.
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Bertram CA, Donovan TA, Bartel A. Mitotic activity: A systematic literature review of the assessment methodology and prognostic value in canine tumors. Vet Pathol 2024:3009858241239565. [PMID: 38533804 DOI: 10.1177/03009858241239565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
One of the most relevant prognostic indices for tumors is cellular proliferation, which is most commonly measured by the mitotic activity in routine tumor sections. The goal of this systematic review was to analyze the methods and prognostic relevance of histologically measuring mitotic activity that have been reported for canine tumors in the literature. A total of 137 articles that correlated the mitotic activity in canine tumors with patient outcome were identified through a systematic (PubMed and Scopus) and nonsystematic (Google Scholar) literature search and eligibility screening process. Mitotic activity methods encompassed the mitotic count (MC, number of mitotic figures per tumor area) in 126 studies, presumably the MC (method not specified) in 6 studies, and the mitotic index (MI, number of mitotic figures per number of tumor cells) in 5 studies. A particularly high risk of bias was identified based on the available details of the MC methods and statistical analyses, which often did not quantify the prognostic discriminative ability of the MC and only reported P values. A significant association of the MC with survival was found in 72 of 109 (66%) studies. However, survival was evaluated by at least 3 studies in only 7 tumor types/groups, of which a prognostic relevance is apparent for mast cell tumors of the skin, cutaneous melanoma, and soft tissue tumor of the skin and subcutis. None of the studies using the MI found a prognostic relevance. This review highlights the need for more studies with standardized methods and appropriate analysis of the discriminative ability to prove the prognostic value of the MC and MI in various tumor types. Future studies are needed to evaluate the influence of the performance of individual pathologists on the appropriateness of prognostic thresholds and investigate methods to improve interobserver reproducibility.
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Dolka I, Czopowicz M, Stopka D, Wojtkowska A, Kaszak I, Sapierzyński R. Risk factor analysis and clinicopathological characteristics of female dogs with mammary tumours from a single-center retrospective study in Poland. Sci Rep 2024; 14:5569. [PMID: 38448646 PMCID: PMC10917774 DOI: 10.1038/s41598-024-56194-z] [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: 11/18/2023] [Accepted: 03/04/2024] [Indexed: 03/08/2024] Open
Abstract
This is a comprehensive retrospective study to characterize female dogs with canine mammary tumors (CMTs) using a dataset retrieved from the archives of the Division of Animal Pathology, Institute of Veterinary Medicine in Warsaw, and to identify prognostic factors. Clinical and histopathological data of 1447 dogs with CMTs were included. Malignant tumours were found in 83.3% (n = 1206), benign tumours in 11.7% (n = 169), and non-neoplastic lesions in 5.0% (n = 72) of dogs. Dogs most often had grade II carcinomas (38.2%, 215/562) of a single histological subtype (88.5%, 1281/1447), mostly simple carcinoma (35.3%, 510/1447). Dogs with a median age of 10 years significantly often had larger (≥ 3 cm) and malignant CMTs, whereas intact females had smaller tumours (median size 2.0 cm). However, the threshold value for the age of the dog in the differentiation of malignant and non-neoplastic/benign masses could not be determined. Most females were hormonally active (76.4%, 372/487). Hormonally active dogs significantly more often had multiple tumours. Multiple tumours were significantly smaller (median 2.5 cm) than single ones. Among pedigree dogs, small-breed dogs were mostly recorded (43%, 428/1006). Twelve breeds had an increased risk of CMTs, regardless of tumour behaviour, compared with the theoretical distribution of pedigree dogs in Poland. Four breeds were often affected only by malignant and other four breeds only by non-neoplastic/benign CMT. Large-breed dogs were significantly younger and affected by larger CMT (median 4 cm) compared with small- and medium-breed dogs. Ninety dogs with a malignant CMT and complete records were included in the full analysis of CMT-specific survival (CMT-SS) with a median follow-up time of 20.0 months. We showed that the timing of ovariohysterectomy in relation to mastectomy was significantly associated with grade, CMT-SS, and CMT-related death. We indicated the low diagnostic accuracy of palpation of regional lymph nodes (RLN) in the prediction of their metastatic involvement. By multivariable analysis, dogs with neoplastic emboli, tumour ulceration, and simple or complex carcinoma had a significantly higher risk of local recurrence. Tumour size > 3 cm was as a strong independent predictor of lung metastases. Compared with dogs with an easily separated localized tumour, dogs with a multiple/diffuse malignant CMT pattern had a fivefold higher risk of death. The risk of death was significantly higher in the presence of neoplastic emboli (~ fivefold) and tumour ulceration (~ fourfold). Furthermore, the presence of neoplastic emboli and large tumour size were independent predictors of CMT-related death.
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Affiliation(s)
- Izabella Dolka
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159C, 02-776, Warsaw, Poland.
| | - Michał Czopowicz
- Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159C, 02-776, Warsaw, Poland
| | - Diana Stopka
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159C, 02-776, Warsaw, Poland
| | - Agata Wojtkowska
- Department of Small Animal Diseases With Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159C, 02-776, Warsaw, Poland
| | - Ilona Kaszak
- Department of Small Animal Diseases With Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159C, 02-776, Warsaw, Poland
| | - Rafał Sapierzyński
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159C, 02-776, Warsaw, Poland
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Hussein HA, Ahmed JM, Musse AH, Gizaw Y. Prevalence and risk factors of bovine tuberculosis in cattle in selected districts of Fafan pastoral settings, Eastern Ethiopia. Heliyon 2024; 10:e24998. [PMID: 38312611 PMCID: PMC10835366 DOI: 10.1016/j.heliyon.2024.e24998] [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: 05/07/2023] [Revised: 12/16/2023] [Accepted: 01/18/2024] [Indexed: 02/06/2024] Open
Abstract
Cross-sectional study was conducted from October 2021 to August 2022 to investigate the prevalence and associated risk factors of bovine tuberculosis in cattle in selected districts of the pastoral settings of Fafan zone, Somali region, eastern Ethiopia. A comparative intradermal tuberculin test was performed using purified protein derivatives. Animal-related characteristics, and the owner's knowledge on the importance of BTB were collected using a structured questionnaire. The prevalence was 11.24 % (95 % CI, 8.61-14.35) and 43.3 % (95 % CI, 33.27-53.75) at the individual and herd levels, respectively. There were statistically significant differences in the proportions of positive reactor animals according to body condition score (P = 0.000), age (P = 0.048), seasonal migration (P = 0.038), parity number (P = 0.005), and reproductive status (P = 0.037). Animals with poor body condition scores had a significantly higher likelihood of testing positive, with their odds being 11.4 times greater (COR = 11.408, CI = 3.43-37.94, P < 0.001). In multivariate logistic regression, poor body condition score remained significantly associated with the odds of a positive reaction to tuberculosis (AOR = 0.137, CI = 0.053-0.356, P < 0.001). Similarly, the analysis showed that seasonal migration (AOR = 2.882, CI = 1.155-7.191, P = 0.023) and parity number (AOR = 11.64, CI = 1.818-74.464, P = 0.010) were significant predictors of bovine tuberculosis infection in cattle. According to the questionnaire, 14.2 % (17 of 120) and 13.3 % (16 of 120) of the respondents were knowledgeable about bovine tuberculosis and its transmission from animals to humans, and vice versa, respectively. The general judgment of herders' understanding of bovine tuberculosis transmission methods to humans was very low. The study findings showed a high prevalence of bovine tuberculosis in the study area, emphasizing the need for an effective control and prevention strategy.
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Affiliation(s)
- Hassan Abdi Hussein
- College of Veterinary Medicine, Department of One Health, Jigjiga University, P.O. Box, 1020, Jigjiga, Ethiopia
| | - Juhar Mohamed Ahmed
- College of Veterinary Medicine, Department of One Health, Jigjiga University, P.O. Box, 1020, Jigjiga, Ethiopia
| | - Abdi Hussein Musse
- College of Veterinary Medicine, Department of One Health, Jigjiga University, P.O. Box, 1020, Jigjiga, Ethiopia
| | - Yonas Gizaw
- College of Agriculture and Environmental Science, Arsi University, P.O. Box, 193, Asella, Ethiopia
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Abera D, Mossie T. A review on pneumonic pasteurellosis in small ruminants. JOURNAL OF APPLIED ANIMAL RESEARCH 2023. [DOI: 10.1080/09712119.2022.2146123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Dessie Abera
- Debre markos Agricultural Research Center, Debre markos, Ethiopia
| | - Tesfa Mossie
- Jimma Agricultural Research Center, Jimma, Ethiopia
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6
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Ali S, Ullah W, Kamarulzaman AFS, Hassan M, Rauf M, Khattak MNK, Dawar FU. Proteomic profile of epidermal mucus from Labeo rohita reveals differentially abundant proteins after Aeromonas hydrophila infection. FISH AND SHELLFISH IMMUNOLOGY REPORTS 2023; 5:100115. [PMID: 37771818 PMCID: PMC10523009 DOI: 10.1016/j.fsirep.2023.100115] [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: 05/22/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/30/2023] Open
Abstract
We report the proteomic profile of Epidermal Mucus (EM) from Labeo rohita and identified the differentially abundant proteins (DAPs) against Aeromonas hydrophila infection through label-free liquid chromatography-mass spectrometry (LC-MS/MS). Using discovery-based proteomics, a total of 2039 proteins were quantified in nontreated group and 1,328 proteins in the treated group, of which 114 were identified as DAPs in both the groups. Of the 114 DAPs, 68 proteins were upregulated and 46 proteins were downregulated in the treated group compared to nontreated group. Functional annotations of these DAPs shows their association with metabolism, cellular process, molecular process, cytoskeletal, stress, and particularly immune system. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis and Fisher's exact test between the two groups shows that most of the proteins were immune-related, which were significantly associated with the proteasome, phagosome, and Salmonella infection pathways. Overall, this study shows a basic and primary way for further functional research of the involvement of vitellogenin 2, alpha-2-macroglobulin-like protein, toll-like receptors (TLR-13), calpain, keratin-like proteins, and heat shock proteins against bacterial infection. Nonetheless, this first-ever comprehensive report of a proteomic sketch of EM from L. rohita after A. hydrophila infection provides systematic protein information to broadly understand the biological role of fish EM against bacterial infection.
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Affiliation(s)
- Shandana Ali
- Laboratory of Fisheries and Aquaculture, Department of Zoology, Kohat University of Science and Technology Kohat, 26000 Khyber Pakhtunkhwa, Pakistan
| | - Waheed Ullah
- Department of Microbiology, Kohat University of Science and Technology Kohat, 26000 Khyber Pakhtunkhwa, Pakistan
| | | | - Maizom Hassan
- Institute of System Biology (INBIOSIS), Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
| | - Muhammad Rauf
- Laboratory of Fisheries and Aquaculture, Department of Zoology, Kohat University of Science and Technology Kohat, 26000 Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Nasir Khan Khattak
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Farman Ullah Dawar
- Laboratory of Fisheries and Aquaculture, Department of Zoology, Kohat University of Science and Technology Kohat, 26000 Khyber Pakhtunkhwa, Pakistan
- Laboratory of Marine Biotechnology, College of Oceanography, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, China
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Senhorello ILS, Matiz ORS, Canavari IC, Hernandez GV, Anai LA, Navarrete Ampuero RA, Pazzini JM, Prado CM, Meirelles FV, Vasconcelos RDO, Tinucci-Costa EM. Expression of acetylated histones H3 and H4 and histone deacetylase enzymes HDAC1, HDAC2 and HDAC6 in simple mammary carcinomas of female dogs. Front Genet 2023; 14:1257932. [PMID: 38028583 PMCID: PMC10666162 DOI: 10.3389/fgene.2023.1257932] [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: 07/13/2023] [Accepted: 10/05/2023] [Indexed: 12/01/2023] Open
Abstract
Histone deacetylation is an important mechanism involved in human breast cancer tumorigenesis and recent veterinary oncology studies also demonstrate a similar relationship in some canine neoplasms. The use of HDAC inhibitors in vitro and in vivo has demonstrated antitumor action on several strains of human and animal cancers. The present study aims to correlate the expression of H3K9Ac, H4K12Ac, HDAC1, HDAC2 and HDAC6 in simple mammary carcinomas in dogs with clinicopathological parameters and overall survival time. To this end, 61 samples of simple breast carcinomas were analyzed by the immunohistochemistry technique with subsequent validation of the antibodies by the Western Blot technique. The expressions obtained via a semi-quantitative way were categorized by assigning scores and classified into high or low expressions according to the given score, except for HDAC6, when the marking percentage was considered and subdivided into high and low expressions using the median value. For statistical analysis, the chi-square test or Fisher exact test were used as univariate analysis and correspondence analysis as a multivariate test, in addition to the Kaplan-Meier survival analysis. In the studied samples, the highest frequencies were determined for the high expression proteins H4K12Ac (88.5%), HDAC2 (65.6%) and HDAC6 (56.7%) and the low expression proteins H3K9Ac (73.8%) and HDAC1 (54.1%). An association between the low expression of HDAC1 and the presence of lymph node metastasis (p = 0.035) was indicated by univariate analysis while the high expression of HDAC1 was associated with favorable prognostic factors, such as the absence of lymph node metastasis and low mitotic index by multivariate analysis. Also, by multivariate analysis, the low expression of HDAC6 was correlated with the low expression of Ki67, smaller tumors, and better prognosis factors as well. Protein expression was not correlated with patients' overall survival time (p > 0.05). The high expressions of HDAC2 and HDAC6 in mammary carcinomas in female dogs may be useful information for research involving therapeutic targets with iHDACs since their inhibition favors hyperacetylation and transcription of tumor suppressor genes.
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Affiliation(s)
- Igor Luiz Salardani Senhorello
- Department of Veterinary Clinic and Surgery, Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, SP, Brazil
- Department of Veterinarry Medicine, Universidade Vila Velha-UVV, Vila Velha, Espírito Santo, Brazil
| | - Oscar Rodrigo Sierra Matiz
- Department of Veterinary Clinic and Surgery, Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, SP, Brazil
| | - Isabela Cristina Canavari
- Department of Veterinary Clinic and Surgery, Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, SP, Brazil
| | | | | | | | | | - Cibele Maria Prado
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, Universidade de São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Flavio Vieira Meirelles
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, Universidade de São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Rosemeri de Oliveira Vasconcelos
- Department of Veterinary Clinic and Surgery, Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, SP, Brazil
| | - e Mirela Tinucci-Costa
- Department of Veterinary Clinic and Surgery, Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, SP, Brazil
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Khaki Z, Fathipour V. Prognostic value of different forms of serum MMP-2 and MMP-9 in dogs with mammary tumors; a longitudinal study. Res Vet Sci 2023; 163:104995. [PMID: 37647819 DOI: 10.1016/j.rvsc.2023.104995] [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: 06/20/2023] [Revised: 07/28/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023]
Abstract
Gelatinases (MMP-2 and MMP-9) are related to tumor invasion and metastasis. In humans, the diagnostic value of serum levels of gelatinases has been confirmed in breast cancer, but their diagnostic value in canine mammary tumors is still unknown. This study aimed to determine the serum level of gelatinases in dogs with mammary tumors in order to determine their value in the diagnosis of malignancy or benign tumors and also in predicting the possibility of metastasis and recurrence. Frequent measurement of MMP-2 and MMP-9 by gelatin zymography in serum before and after surgical treatment has not previously been studied for monitoring mammary tumors in dogs. Thus, the serum levels of MMP-2 and MMP-9 in 26 dogs with mammary tumors before surgical treatment and then 1, 4 and 12 months after surgery were evaluated by gelatin zymography. Serum samples of 26 healthy dogs with normal conditions were used as control. Dogs with benign and malignant mammary tumors showed bands of pro-MMP-2, pro-MMP-9 and active MMP-9. However, only pro-MMP-2 and pro-MMP-9 bands appeared in the serum of control group. Our results showed that the presence of active MMP-9, regardless of its level, was prognostically important for metastasis and or recurrence (M/R). However, the presence of active MMP-2 band was more important for M/R than active MMP-9, as its presence coincides with definitive M/R. It seems that serum gelatin zymography could possibly be used at regular intervals before and after surgery to evaluate the probability of M/R in dogs with mammary tumors. More research is needed in this regard.
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Affiliation(s)
- Zohreh Khaki
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Vahid Fathipour
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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9
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Rahman MH, Akther S, Alam MS, Hassan MZ, Sarker MS, Ali MZ, Giasuddin M, Ahmed S. Prevalence and identification of caprine pasteurellosis in pneumonic goats in Bangladesh. J Adv Vet Anim Res 2023; 10:538-544. [PMID: 37969786 PMCID: PMC10636087 DOI: 10.5455/javar.2023.j707] [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: 06/09/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 11/17/2023] Open
Abstract
Objective This research aimed to assess the prevalence of caprine pasteurellosis, isolate and identify pasteurellosis (Mannheimia haemolytica and Pasteurella multocida) in pneumonic goats, and discover the main bacterial cause of pneumonia. Materials and Methods One hundred and five samples (94 nasal swabs and 11 lung tissues) from goats suspected of having pneumonia were taken and transferred aseptically to the laboratory. Following the processing of the collected samples, Pasteurella spp. was isolated with the aid of plate culture methods. Biochemical characteristics were used to identify all bacterial isolates, which were then verified by polymerase chain reaction (PCR). Antimicrobial susceptibility testing was also carried out to evaluate the sensitivity profiles of various antibiotics. The Pasteurella haemolytica serotype-specific antigen (PHSSA) gene was used to identify isolates of M. haemolytica, and the KMT1 gene was used to identify isolates of P. multocida. Results From the 105 clinically suspicious samples, 51 (48.57%) were identified to be Pasteurella spp. through bacteriological testing and also by PCR targeting the 16S rRNA gene. Of these, 47.87% (45/94) were nasal swabs, and 54.55% (6/11) were lung tissues. Among confirmed samples, 70.59% (36/51) were identified as M. haemolytica, and 29.41% (15/51) were identified as P. multocida. Resistance to tetracycline, streptomycin, oxytetracycline, gentamicin, and ceftriaxone was found in 50%-83% of the isolates. In addition, PCR identified the PHSSA and KMT1 genes from isolates of P. multocida and M. haemolytica, respectively. Conclusion The present study revealed that M. haemolytica and P. multocida primarily caused pasteurellosis in pneumonic goats in Bangladesh. However, when treating these animals, the proper choice of antimicrobials should be made to control this disease.
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Affiliation(s)
- Md. Habibur Rahman
- Goat Production Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
| | - Sonia Akther
- Sheep Production Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
| | - Md. Shahin Alam
- Animal Health Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
| | - Md. Zakir Hassan
- Animal Health Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
| | - Md. Samun Sarker
- Animal Health Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
| | - Md. Zulfekar Ali
- Animal Health Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
| | - Md. Giasuddin
- Animal Health Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
| | - Sadek Ahmed
- Goat Production Research Division, Bangladesh Livestock Research Institute, Savar, Dhaka-1341, Bangladesh
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10
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Feighelstein M, Henze L, Meller S, Shimshoni I, Hermoni B, Berko M, Twele F, Schütter A, Dorn N, Kästner S, Finka L, Luna SPL, Mills DS, Volk HA, Zamansky A. Explainable automated pain recognition in cats. Sci Rep 2023; 13:8973. [PMID: 37268666 DOI: 10.1038/s41598-023-35846-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/24/2023] [Indexed: 06/04/2023] Open
Abstract
Manual tools for pain assessment from facial expressions have been suggested and validated for several animal species. However, facial expression analysis performed by humans is prone to subjectivity and bias, and in many cases also requires special expertise and training. This has led to an increasing body of work on automated pain recognition, which has been addressed for several species, including cats. Even for experts, cats are a notoriously challenging species for pain assessment. A previous study compared two approaches to automated 'pain'/'no pain' classification from cat facial images: a deep learning approach, and an approach based on manually annotated geometric landmarks, reaching comparable accuracy results. However, the study included a very homogeneous dataset of cats and thus further research to study generalizability of pain recognition to more realistic settings is required. This study addresses the question of whether AI models can classify 'pain'/'no pain' in cats in a more realistic (multi-breed, multi-sex) setting using a more heterogeneous and thus potentially 'noisy' dataset of 84 client-owned cats. Cats were a convenience sample presented to the Department of Small Animal Medicine and Surgery of the University of Veterinary Medicine Hannover and included individuals of different breeds, ages, sex, and with varying medical conditions/medical histories. Cats were scored by veterinary experts using the Glasgow composite measure pain scale in combination with the well-documented and comprehensive clinical history of those patients; the scoring was then used for training AI models using two different approaches. We show that in this context the landmark-based approach performs better, reaching accuracy above 77% in pain detection as opposed to only above 65% reached by the deep learning approach. Furthermore, we investigated the explainability of such machine recognition in terms of identifying facial features that are important for the machine, revealing that the region of nose and mouth seems more important for machine pain classification, while the region of ears is less important, with these findings being consistent across the models and techniques studied here.
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Affiliation(s)
| | - Lea Henze
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Sebastian Meller
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ilan Shimshoni
- Information Systems Department, University of Haifa, Haifa, Israel
| | - Ben Hermoni
- Faculty of Electrical Engineering, Technion, Israel Institute of Technology, Haifa, Israel
| | - Michael Berko
- Faculty of Electrical Engineering, Technion, Israel Institute of Technology, Haifa, Israel
| | - Friederike Twele
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Alexandra Schütter
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Nora Dorn
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Sabine Kästner
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Lauren Finka
- Cats Protection, National Cat Centre, Chelwood Gate, Sussex, UK
| | - Stelio P L Luna
- School of Veterinary Medicine and Animal Science, São Paulo State University (Unesp), São Paulo, Brazil
| | - Daniel S Mills
- School of Life Sciences, Joseph Bank Laboratories, University of Lincoln, Lincoln, UK
| | - Holger A Volk
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Anna Zamansky
- Information Systems Department, University of Haifa, Haifa, Israel.
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11
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Seifu K, Muluneh A, Getachew Y, Jibril Y, Negussie H. Epidemiological study and dairy farmers' knowledge, attitudes, and practices on foot and mouth disease in central Ethiopia. Heliyon 2023; 9:e15771. [PMID: 37159685 PMCID: PMC10163643 DOI: 10.1016/j.heliyon.2023.e15771] [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: 08/20/2022] [Revised: 03/10/2023] [Accepted: 04/20/2023] [Indexed: 05/11/2023] Open
Abstract
Foot and mouth disease (FMD) is consistently ranked as the most economically significant viral disease and one of the top five livestock diseases in Ethiopia. Although FMD is endemic in Ethiopia, the epidemiology and the farmers' knowledge, attitudes, and practices regarding FMD were poorly quantified. Thus, a cross-sectional study was conducted from November 2021 to April 2022 to estimate the seroprevalence, identify the FMD serotypes, and assess the farmers' knowledge, attitudes, and practices on FMD in Addis Ababa city and Sebeta special zone, central Ethiopia. A total of 384 serum samples were collected from cattle and tested using a 3ABC enzyme-linked immunosorbent assay (ELISA). In this study, an overall 56% seroprevalence was recorded. Two types of FMD serotypes were detected in which serotype O was the dominant serotype (75.5%) followed by serotype A (45.5%). A significantly higher seroprevalence (P = 0.00) was recorded in Addis Ababa (85%) compared to Sebeta (28.7%). Seropositivity in older and semi-intensively managed cattle was 2.9 (95% CI: 1.36-6.50; P = 0.006) and 2.1 (95% CI: 1.34-3.26; P = 0.001) times higher compared to young and intensively managed cattle, respectively. A survey on knowledge, attitude, and practice of 103 farmers revealed that 90.2% knew of FMD and the majority of them can recognize its clinical pictures. However, 12.7% of farmers who knew FMD didn't practice any prevention methods. Additionally, 70% of the farmers responded that their cattle roamed outside of their farms for communal grazing, watering, breeding purposes, and vaccination which might put them more at risk of FMD. The current study demonstrated that the majority of farmers have gaps in biosecurity practices and vaccination of cattle against FMD. Therefore, educating farmers on FMD prevention measures is necessary for successful disease control programs.
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Affiliation(s)
- Kalkidan Seifu
- College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia
| | | | - Yitbarek Getachew
- College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia
| | - Yasmin Jibril
- College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia
| | - Haileleul Negussie
- College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia
- Corresponding author. Department of Clinical Studies, College of Veterinary Medicine and Agriculture, Addis Ababa University, P. O. Box 34, Bishoftu, Ethiopia.
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12
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Franco PIR, Pereira JX, Ferreira HH, de Menezes LB, Miguel MP. Low-grade mammary gland tumours in dogs have greater VEGF-A and BMP2 immunostaining and higher CD31 blood vessel density. Top Companion Anim Med 2023; 53-54:100778. [PMID: 37011834 DOI: 10.1016/j.tcam.2023.100778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023]
Abstract
Tumor angiogenesis is an important process in tumor growth, and different molecules are involved in its regulation including VEGF-A, BMP2, and CD31, which can be considered possible prognostic markers. The aim of this study was to verify whether the VEGF-A and BMP2 immunostaining area, and microvascular density (MVD) might be associated with the degree of malignancy in malignant mammary neoplasms of dogs. For this purpose, samples of mammary malignancies from female dogs embedded in wax were used and separated into four main histomorphological types: tubulopapillary carcinomas, solid, complex, and carcinosarcoma, which were separated based on high and low degrees of malignancy. Immunohistochemical analysis was performed on tissue microarray blocks using anti-CD31 antibodies for evaluation of MVD and vascular lumen area, and with anti-VEGF-A and anti-BMP2 to determine the immunostaining area using the DAKO EnVision™ FLEX+ kit. MVD and vascular lumen area were higher in tubulopapillary carcinomas as were the areas stained by VEGF-A and BMP2. Immunostaining for CD31 was higher in low-grade carcinomas as well as in areas immunostained by VEGF-A and BMP2. There was a positive correlation between VEGF and BMP2 in high (r = 0.556, p < 0.0001) and low-grade (r = 0.287, p<0.0001) carcinomas and between MVD and VEGF-A in low-grade carcinomas (r = 0.267, p = 0.0064). Thus, the markers evaluated showed greater immunostaining in canine mammary tumors with a lower degree of malignancy.
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13
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Hörnfeldt MB, Mortensen JK. Surgical dose and the clinical outcome in the treatment of mammary gland tumours in female dogs: a literature review. Acta Vet Scand 2023; 65:12. [PMID: 36906609 PMCID: PMC10008593 DOI: 10.1186/s13028-023-00674-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 03/03/2023] [Indexed: 03/13/2023] Open
Abstract
Mammary gland tumours are the most frequent tumours in intact female dogs and surgery remains the main treatment modality. Surgery is traditionally performed according to the lymphatic drainage of the mammary glands, but robust evidence is still lacking on what surgical dose is the smallest and results in the best outcome. The objective of the study was to investigate whether choice of surgical dose influences treatment outcome in dogs with mammary tumours and to identify current gaps in research that need to be filled in future studies for identifying the smallest surgical dose with the best possible outcome. Articles for entrance into the study were identified in online databases. Information regarding outcome following use of different surgical doses was extracted for analysis. Also, known prognostic factors were mapped for each study to discuss their impact on treatment outcome. Twelve articles were identified and included. Surgical dose applied ranged from lumpectomy to radical mastectomy. Radical mastectomy was most often analysed [11/12 (92%) articles]. Less invasive surgical doses were used less often in decreasing order of invasiveness. Outcomes analysed were most often survival time [7/12 (58%) articles], frequency of recurrences [5/12 (50%) studies] and time to recurrence [5/12 (42%) studies)]. No studies demonstrated any significant association between surgical dose and outcome. Gaps in the research could be categorised as data that was not available for extraction, for example known prognostic factors. Other factors related to study design were also identified, for example small groups of dogs included into the study. No studies showed a clear benefit of choosing one surgical dose over the other. Choice of surgical dose should be based on known prognostic factors and risks for complications rather than on lymphatic drainage. In future studies all prognostic factors should be included when investigating how choice of surgical dose influences treatment outcome.
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Affiliation(s)
- Maria Bennet Hörnfeldt
- Gothenburg Animal Hospital Evidensia/Göteborgs Djursjukhus Evidensia, Produktvägen 5, 435 33, Mölnlycke, Sweden
| | - Jacob Kvesel Mortensen
- Gothenburg Animal Hospital Evidensia/Göteborgs Djursjukhus Evidensia, Produktvägen 5, 435 33, Mölnlycke, Sweden.
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14
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Paramasivam R, Gopal DR, Dhandapani R, Subbarayalu R, Elangovan MP, Prabhu B, Veerappan V, Nandheeswaran A, Paramasivam S, Muthupandian S. Is AMR in Dairy Products a Threat to Human Health? An Updated Review on the Origin, Prevention, Treatment, and Economic Impacts of Subclinical Mastitis. Infect Drug Resist 2023; 16:155-178. [PMID: 36636377 PMCID: PMC9831082 DOI: 10.2147/idr.s384776] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 12/20/2022] [Indexed: 01/07/2023] Open
Abstract
Background Bovine mastitis is the most frequent and costly illness impacting dairy herds worldwide. The presence of subclinical mastitis in dairy cows has an impact on the decreased output of milk and milk quality, culling of affected cows, mortality rate, as well as mastitis-related treatment expenses, generating significant financial loss to the dairy industry. The pathogenic bacteria invade through the mammary gland, which then multiply in the milk-producing tissues causing infection, and the presence of pathogenic bacteria in milk is concerning, jeopardizes human health, and also has public health consequences. Intervention to promote herd health is essential to protect public health and the economy. Results This review attempts to provide an overview of subclinical mastitis, including mastitis in different species, the effect of mastitis on human health and its pathogenic mechanism, the prevalence and incidence of subclinical mastitis, and current preventive, diagnostic, and treatment methods for subclinical mastitis. It also elaborates on the management practices that should be followed by the farms to improve herd immunity and health. Conclusion This review brings the importance of the threat of antimicrobial resistance organisms to the dairy industry. Furthermore, this review gives a glimpse of the economic consequences faced by the farmers and a futuristic mastitis market analysis in the dairy industry.
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Affiliation(s)
- Ragul Paramasivam
- Research and Development Division, Chimertech Private Limited, Chennai, India
| | - Dhinakar Raj Gopal
- Department of Animal Biotechnology, Madras Veterinary College, Tamilnadu Veterinary and Animal Science University (TANUVAS), Chennai, 600007, India
| | | | | | | | - Bhavadharani Prabhu
- Research and Development Division, Chimertech Private Limited, Chennai, India
| | - Veeramani Veerappan
- Research and Development Division, Chimertech Private Limited, Chennai, India
| | | | | | - Saravanan Muthupandian
- AMR and Nanotherapeutics Lab, Centre for Transdisciplinary Research (CFTR), Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India,Division of Biomedical Science, College of Health Sciences, School of Medicine, Mekelle University, Mekelle, Ethiopia,Correspondence: Saravanan Muthupandian, Email
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15
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Yu C, Zheng H, Liu X, Xie G. The Analysis of E-Cadherin, N-Cadherin, Vimentin, HER-2, CEA, CA15-3 and SF Expression in the Diagnosis of Canine Mammary Tumors. Animals (Basel) 2022; 12:3050. [PMID: 36359174 PMCID: PMC9657150 DOI: 10.3390/ani12213050] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/10/2023] Open
Abstract
Canine mammary tumors (CMTs) are one of the most common tumors in female dogs, and they are associated with a poor prognosis owing to their high rate of recurrence and metastasis rates, which make their diagnosis especially important in clinical veterinary medicine. In this study, the characteristics of tumors were observed in dogs suffering from CMTs, and clinical diagnosis and histopathology were used to identify tumors. Furthermore, the expression levels of tumor markers for CMTs were analyzed by enzyme-linked immunosorbent assay (ELISA) and quantitative PCR (qPCR). Upon clinical examination, dogs with CMTs displayed a distinct and irregular mass in the mammary gland, and X-ray (Latero-lateral and ventro-dorsal views) and ultrasonography of the abdomen revealed a moderately echogenic mass at the mammary gland with slightly stronger density than the surrounding tissue. A total of 30 tumors were identified by histopathology, 11 benign and 19 malignant. Changes in some indicators in dogs suffering from CMTs and healthy dogs suggested that there were multiple direct or paraneoplastic changes associated with tumors that could be detected/suspected by hematological examination, and ELISA revealed the HER-2 serum concentrations were significantly different between healthy animals and those with malignant tumors. qPCR indicated that tumor markers N-cadherin, Vimentin, HER-2, CEA, CA15-3 and SF were higher in dogs with malignant tumors than healthy dogs, with a low level of E-cadherin in malignant tumors. This study verified that serological tests and molecular biological tests were essential to the early diagnosis, treatment and prognosis of dogs with tumors.
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Affiliation(s)
| | | | | | - Guanghong Xie
- College of Veterinary Medicine, Jilin University, No. 5333 Xi’an Road, Changchun 130062, China
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16
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Kaszak I, Witkowska-Piłaszewicz O, Domrazek K, Jurka P. The Novel Diagnostic Techniques and Biomarkers of Canine Mammary Tumors. Vet Sci 2022; 9:526. [PMID: 36288138 PMCID: PMC9610006 DOI: 10.3390/vetsci9100526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 07/25/2023] Open
Abstract
Canine mammary tumors (CMTs) are considered a serious clinical problem in older bitches. Due to the high malignancy rate and poor prognosis, an early diagnosis is essential. This article is a summary of novel diagnostic techniques as well as the main biomarkers of CMTs. So far, CMTs are detected only when changes in mammary glands are clinically visible and surgical removal of the mass is the only recommended treatment. Proper diagnostics of CMT is especially important as they represent a very diverse group of tumors and therefore different treatment approaches may be required. Recently, new diagnostic options appeared, like a new cytological grading system of CMTs or B-mode ultrasound, the Doppler technique, contrast-enhanced ultrasound, and real-time elastography, which may be useful in pre-surgical evaluation. However, in order to detect malignancies before macroscopic changes are visible, evaluation of serum and tissue biomarkers should be considered. Among them, we distinguish markers of the cell cycle, proliferation, apoptosis, metastatic potential and prognosis, hormone receptors, inflammatory and more recent: metabolomic, gene expression, miRNA, and transcriptome sequencing markers. The use of a couple of the above-mentioned markers together seems to be the most useful for the early diagnosis of neoplastic diseases as well as to evaluate response to treatment, presence of tumor progression, or further prognosis. Molecular aspects of tumors seem to be crucial for proper understanding of tumorigenesis and the application of individual treatment options.
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Affiliation(s)
- Ilona Kaszak
- Laboratory of Small Animal Reproduction, Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Olga Witkowska-Piłaszewicz
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Kinga Domrazek
- Laboratory of Small Animal Reproduction, Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Piotr Jurka
- Laboratory of Small Animal Reproduction, Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
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17
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Yuan SHC, Chang SC, Chou PY, Yang Y, Liu HP. The Implication of Serum Autoantibodies in Prognosis of Canine Mammary Tumors. Animals (Basel) 2022; 12:ani12182463. [PMID: 36139323 PMCID: PMC9495273 DOI: 10.3390/ani12182463] [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: 08/13/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/29/2022] Open
Abstract
Canine mammary tumor (CMT) is the most prevalent neoplasm in female dogs. Tumor recurrence and metastasis occur in malignant CMT (MMT) dogs after surgery. Identification of serum prognostic biomarkers holds the potential to facilitate prediction of disease outcomes. We have identified CMT-associated autoantibodies against thymidylate synthetase (TYMS), insulin-like growth factor-binding protein 5 (IGFBP5), hyaluronan and proteoglycan link protein 1 (HAPLN1), and anterior gradient 2 (AGR2), i.e., TYMS-AAb, IGFBP5-AAb, HAPLN1-AAb, and AGR2-AAb, respectively, by conducting serological enzyme-linked immunosorbent assays (ELISA). Herein we assessed serum AAb levels in 11 MMT dogs before and after surgery, demonstrating that IGFBP5-AAb and HAPLN1-AAb significantly decrease at 3- and 12-months post-surgery (p < 0.05). We evaluated the correlation between the presurgical AAb level and overall survival (OS) of 90 CMT dogs after surgery. Kaplan-Meier survival analysis reveals that IGFBP5-AAbHIgh and TYMS-AAbHigh are significantly correlated with worse OS (p = 0.017 and p = 0.029, respectively), while AGR2-AAbLow is correlated with somewhat poorer OS (p = 0.086). Areas under a time-dependent receiver operating characteristic curve (AUC) of IGFBP5-AAb and TYMS-AAb in predicting OS of MMT dogs are 0.611 and 0.616, respectively. Notably, MMT dogs presenting TYMS-AAbHigh/IGFBP5-AAbHigh/AGR2-AAbLow have worst OS (p = 0.0004). This study reveals an association between the serum AAb level and CMT prognosis.
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Affiliation(s)
- Stephen Hsien-Chi Yuan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Shih-Chieh Chang
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Pei-Yi Chou
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan
| | - Youngsen Yang
- Division of Hematology-Oncology, Department of Internal Medicine, Taichung, Veterans General Hospital, Taichung 40705, Taiwan
| | - Hao-Ping Liu
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan
- Correspondence: ; Tel.: +886-4-2284-0368 (ext. 51)
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18
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Sakalauskaitė S, Riškevičienė V, Šengaut J, Juodžiukynienė N. Association of mast cell density, microvascular density and endothelial area with clinicopathological parameters and prognosis in canine mammary gland carcinomas. Acta Vet Scand 2022; 64:14. [PMID: 35761297 PMCID: PMC9235230 DOI: 10.1186/s13028-022-00633-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 06/15/2022] [Indexed: 01/18/2023] Open
Abstract
Background Mast cell density has been shown to have both enhancing and inhibiting effects on tumour progression and the ability to predict breast cancer behaviour in humans. However, prognostic results have been contradictory. Some previous studies suggested involvement of mast cells in the progression of canine mammary tumours. This study investigated total, intratumoural and peritumoural mast cell densities by Giemsa staining, and their association with clinicopathological parameters and the disease outcome of canine mammary tumours. In addition, since mast cells promote angiogenesis, the microvascular density and endothelial area were evaluated by CD31 immunostaining. Results Intratumoural mast cell density was associated with tumour size, lymph node involvement and tumour-infiltrating lymphocyte count, while peritumoural mast cell density was associated with grade. The endothelial area was associated with grade, mitotic index, tubular formation and proliferation index. Tumours with a high grade, high total intratumoural mast cell density and a larger endothelial area were associated with shorter disease-free survival. Intratumoural mast cell density and grade were found to be independent prognostic factors. Conclusions These results suggest that intratumoural mast cell density and the endothelial area can be used to evaluate the aggressiveness of canine mammary carcinomas, while intratumoural mast cell density could be of use as an independent predictor of a prognosis of disease-free survival. Peritumoural mast cell density does not seem to influence tumour behaviour.
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19
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Dependence of the Ki67 Labelling Index of Selected Canine Tumours on Patient Age, Sex and Tumour Size. J Comp Pathol 2022; 193:1-8. [DOI: 10.1016/j.jcpa.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/21/2021] [Accepted: 02/07/2022] [Indexed: 11/20/2022]
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20
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Van Damme I, Pray I, Mwape KE, Trevisan C, Coudenys F, Mubanga C, Mwelwa C, Vaernewyck V, Dorny P, O'Neal SE, Gabriël S. Movements of free-range pigs in rural communities in Zambia: an explorative study towards future ring interventions for the control of Taenia solium. Parasit Vectors 2022; 15:150. [PMID: 35477431 PMCID: PMC9044682 DOI: 10.1186/s13071-022-05264-0] [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: 01/28/2022] [Accepted: 03/30/2022] [Indexed: 11/13/2022] Open
Abstract
Background Taenia solium typically affects resource-poor communities where pigs are allowed to roam freely, and sanitation and hygiene levels are suboptimal. Sustainable, long-term strategies are urgently needed to control the disease. Geographically targeted interventions, i.e. screening or treatment of taeniosis among people living near infected pigs (defined as ring screening and ring treatment, respectively), have been shown to be effective control options in Peru. However, these results might not be directly generalizable to sub-Saharan African settings. Pig movements play a vital role in the transmission and, consequently, the success of ring interventions against T. solium. The aim of the present study was to explore roaming patterns of pigs in T. solium endemic communities in Zambia as a first step toward evaluating whether ring interventions should be considered as a treatment option in Zambia. Methods In total, 48 free-roaming pigs in two rural neighborhoods in the Eastern Province of Zambia were tracked using a Global Positioning System (GPS) receiver. Tracking took place in April (end of the rainy season) 2019 and October (end of the dry season) 2019. The number of revisitations and the time spent within rings of different radii (50, 100 and 250 m) around the coordinates of each pig owner’s household were calculated for each pig. Results The total tracking time for 43 pigs in the final analysis set ranged between 43 and 94 h. Pigs spent a median of 31% and 13% of the tracked time outside the 50- and 100-m radius, respectively, although large variations were observed between pigs. Overall, 25 pigs (58%) went outside the 250-m ring at least once, and individual excursions lasting up to 16 h were observed. In the dry season, 17 out of 23 pigs went outside the 250-m radius compared to only eight out of 20 pigs in the rainy season (P = 0.014). Conclusions In our study sites in Zambia, the majority of pigs spent most of their time within 50 or 100 m of their owner’s home, and these results are comparable with those on Peruvian pigs. Both radii could therefore be considered reasonable options in future ring interventions. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05264-0.
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Affiliation(s)
- Inge Van Damme
- Laboratory of Foodborne Parasitic Zoonoses, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Ian Pray
- School of Public Health, Oregon Health & Science University-Portland State University, Portland, USA
| | - Kabemba E Mwape
- Department of Clinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Chiara Trevisan
- Laboratory of Foodborne Parasitic Zoonoses, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.,Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Fien Coudenys
- Laboratory of Foodborne Parasitic Zoonoses, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Chishimba Mubanga
- Department of Clinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Chembesofu Mwelwa
- Department of Clinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Victor Vaernewyck
- Laboratory of Foodborne Parasitic Zoonoses, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Pierre Dorny
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Seth E O'Neal
- School of Public Health, Oregon Health & Science University-Portland State University, Portland, USA.,Center for Global Health-Tumbes, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Sarah Gabriël
- Laboratory of Foodborne Parasitic Zoonoses, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
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21
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Valdivia G, Alonso-Diez Á, Alonso-Miguel D, Suárez M, García P, Ortiz-Díez G, Pérez-Alenza MD, Peña L. Epitheliosis is a histopathological finding associated with malignancy and poor prognosis in dogs with mammary tumors. Vet Pathol 2022; 59:747-758. [PMID: 35451346 DOI: 10.1177/03009858221092013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Canine mammary epitheliosis (ME) is a poorly studied dysplasia that may have premalignant potential. In this study, the clinicopathological relevance of ME was prospectively studied in 90 female dogs with mammary tumors (MTs) that underwent radical mastectomy. ME distribution, extent, and coexistence with benign and malignant MTs were evaluated for each case (505 mammary glands). ME was macroscopically undetectable and was present in 47/90 (52%) cases, frequently bilateral. In dogs with malignant MTs and ME, diffuse ME throughout the mammary chain was present in 10/39 (26%) cases. A histological ME-carcinoma transition was evident in certain histotypes. By immunohistochemistry (AE1/AE3, cytokeratin 14 [CK-14], CK-8/18, vimentin, calponin, p63, Ki-67, estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2), ME was a slow-growing, triple-negative process with a strong predominance of basal-like nonmyoepithelial cells. ME was associated with older dogs (P = .016), malignant tumors (P = .044), worse clinical stages (P = .013), lymph node metastasis (LNM, P = .021), higher histological grade tumors (P = .035), and shorter overall survival (OS) in univariate analysis (P = .012). Interestingly, ME was distantly located to the malignant tumor in most cases (P = .007). In multivariate analyses, LNM (P = .005), histological grade (P = .006), and tumor size (P = .006) were independent predictors of OS. For the pathologist, the observation of ME should be clearly stated in the MT biopsy report to alert the surgeon/oncologist. Given the differences between canine ME and its human histopathological counterpart (atypical ductal hyperplasia), "epitheliosis" should remain the preferred term for the dog.
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Affiliation(s)
| | | | | | | | | | | | | | - Laura Peña
- Complutense University of Madrid, Madrid, Spain
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22
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Rafeeinia A, Asadikaram G, Karimi-Darabi M, Abolhassani M, Abbasi-Jorjandi M, Moazed V. Organochlorine pesticides, oxidative stress biomarkers, and leukemia: a case-control study. J Investig Med 2022; 70:1736-1745. [DOI: 10.1136/jim-2021-002289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2022] [Indexed: 11/04/2022]
Abstract
Exposure to pesticides has been linked to an elevated risk of leukemia. The present research aimed to evaluate the relationship between organochlorine (OC) pesticides and biomarkers of oxidative stress in patients with leukemia. This work was conducted on 109 patients with leukemia and 109 healthy controls. The serum concentrations of seven derivatives of OCs including alpha-hexachlorocyclohexane (HCH), beta-HCH, gamma-HCH, 2,4-dichlorodiphenyltrichloroethane (DDT), 4,4-DDT, 2,4-dichlorodiphenyldichloroethylene (DDE), and 4,4-DDE along with acetylcholinesterase (AChE), glutathione peroxidase (GPx), superoxide dismutase (SOD), paraoxonase-1 (PON1), and catalase (CAT) activities as well as total antioxidant capacity (TAC), nitric oxide (NO), protein carbonyl (PC), and malondialdehyde (MDA) levels were measured in all the subjects. Levels of OCs were remarkably higher in patients with leukemia compared with the controls (p<0.05). In addition, levels of SOD, AChE, GPx, PON1, and TAC were remarkably lower in patients with leukemia compared with controls (p<0.05). In contrast, MDA, NO, and PC concentrations were higher in patients with leukemia than in the controls (p<0.05). Moreover, the serum level of 4,4-DDE was negatively associated with GPx activity (p=0.038). Our findings suggest that OCs may play a role in the development of leukemia by disrupting the oxidant/antioxidant balance.
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Baky MH, Badawy MT, Bakr AF, Hegazi NM, Abdellatif A, Farag MA. Metabolome-based profiling of African baobab fruit ( Adansonia digitata L.) using a multiplex approach of MS and NMR techniques in relation to its biological activity. RSC Adv 2021; 11:39680-39695. [PMID: 35494142 PMCID: PMC9044842 DOI: 10.1039/d1ra08277a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/06/2021] [Indexed: 12/17/2022] Open
Abstract
Adansonia digitata L. also known as African baobab is one of the most important fruit-producing trees, widely distributed in the African continent. Baobab fruits are known to possess potential health benefits and nutritional value. This study aimed to holistically dissect the metabolome of A. digitata fruits using a novel comparative protocol using three different analytical platforms. Ultra high performance liquid chromatography coupled to high-resolution tandem mass spectrometry (UHPLC-HRMS/MS), and headspace solid-phase microextraction/gas chromatography coupled to mass spectrometry (HS-SPME/GC-MS) were respectively employed for phytonutrients and aroma profiling, whereas GC-MS post silylation provided an overview of nutrients i.e., sugars. UHPLC-HRMS/MS analysis allowed for the assignment of 77 metabolites, among which 50% are reported for the first time in the fruit. While GC-MS of silylated and aroma compounds led to the identification of 74 and 16 compounds, respectively. Finally, NMR-based metabolite fingerprinting permitted the quantification of the major metabolites for future standardization. In parallel, in vivo antidiabetic potential of the baobab fruit using a streptozotocin (STZ) induced diabetic rat model was assessed. Histopathological and immune-histochemical investigations revealed hepatoprotective and renoprotective effects of A. digitata fruit along with mitigation against diabetes complications. Moreover, the administration of A. digitata fruits (150 mg kg-1) twice a week lowered fasting blood glucose levels.
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Affiliation(s)
- Mostafa H Baky
- Pharmacognosy Department, Faculty of Pharmacy, Egyptian Russian University Badr City Cairo 11829 Egypt +01007906443
| | - Marwa T Badawy
- Biology Department, School of Sciences & Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Alaa F Bakr
- Pathology Department, Faculty of Veterinary Medicine, Cairo University Gamaa St. 12211 Giza Egypt
| | - Nesrine M Hegazi
- Phytochemistry and Plant Systematics Department, Division of Pharmaceutical Industries, National Research Centre P. O. Box 12622 Cairo Egypt
| | - Ahmed Abdellatif
- Biology Department, School of Sciences & Engineering, The American University in Cairo New Cairo 11835 Egypt
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University Kasr El Aini St. P.B. 11562 Cairo Egypt +011-202-25320005 +011-202-2362245
- Chemistry Department, School of Sciences & Engineering, The American University in Cairo New Cairo 11835 Egypt
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24
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Kowal K, Tkaczyk-Wlizło A, Pierzchała M, Gawor J, Ślaska B. Molecular differences in mitochondrial DNA genomes of dogs with malignant mammary tumours. Vet Comp Oncol 2021; 20:256-264. [PMID: 34554638 DOI: 10.1111/vco.12772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 07/01/2021] [Accepted: 09/20/2021] [Indexed: 11/30/2022]
Abstract
The aim of this study was to determine molecular defects in mitochondrial DNA (mtDNA) with the use of large-scale genome analysis in malignant canine mammary gland tumours and indicate whether these changes were linked with the carcinogenesis process. With the use of the NGS technology, we sequenced 27 samples of mtDNA isolated from blood and tumours obtained from 13 dogs with mammary gland tumours. The total number of mutations and polymorphisms in the analysed mitochondrial genomes was 557. We identified 383 single nucleotide polymorphisms (SNP), 32 indels (or length polymorphisms), 4 mutations, 137 heteroplasmic positions and 1 indel mutation. The highest variability (132 changes) was observed in the variable number of tandem repeats (VNTR) region. The heteroplasmy rate in VNTR varied among individuals and even between two tumours in one organism. Our previous study resulted in determination of a probable CpG island in this region, thus it is not excluded that these changes might alter mtDNA methylation. Only the ATP8 gene was not affected by any polymorphisms or mutations, whereas the COX1 gene had the highest number of polymorphisms from all protein-coding genes. One change m.13594G>A was detected in a region spanning two genes: ND5 and ND6, from which a deleterious effect was observed for the ND5 protein. Molecular changes were frequently observed in the TΨC loop, which is thought to interact with ribosomal RNA.
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Affiliation(s)
- Krzysztof Kowal
- Institute of Biological Bases of Animal Production, University of Life Sciences in Lublin, Lublin, Poland
| | - Angelika Tkaczyk-Wlizło
- Institute of Biological Bases of Animal Production, University of Life Sciences in Lublin, Lublin, Poland
| | - Mariusz Pierzchała
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzębiec, Poland
| | - Jan Gawor
- DNA Sequencing and Synthesis Facility, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Brygida Ślaska
- Institute of Biological Bases of Animal Production, University of Life Sciences in Lublin, Lublin, Poland
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25
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Raulic J, Leung VS, Doss GA, Graham JE, Keller KA, Mans C, Sadar MJ, Vergneau-Grosset C, Pang DS. Development and Testing of a Sedation Scale for Use in Rabbits ( Oryctolagus cuniculus). JOURNAL OF THE AMERICAN ASSOCIATION FOR LABORATORY ANIMAL SCIENCE : JAALAS 2021; 60:549-555. [PMID: 34429187 PMCID: PMC8603372 DOI: 10.30802/aalas-jaalas-21-000002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/01/2021] [Accepted: 04/28/2021] [Indexed: 11/05/2022]
Abstract
In biomedical research, rabbits are commonly sedated to facilitate a variety of procedures. Developing a sedation assessment scale enables standardization of levels of sedation and comparisons of sedation protocols, and may help in predicting sedation level requirements for different procedures. The goal of this study was to develop a rabbit sedation assessment scale using a psychometric approach. We hypothesized that the sedation scale would have construct validity, good internal consistency, and reliability. In a prospective, randomized, blinded study design, 15 (8 females, 7 males) healthy 1-y-old New Zealand white rabbits received 3 intramuscular treatments: midazolam (0.5 mg/kg; n = 6); midazolam (1.5 mg/kg)-ketamine (5 mg/kg; n = 7); and alfaxalone (4 mg/kg)-dexmedetomidine (0.1 mg/kg)-midazolam (0.2 mg/kg; n = 3). One rabbit received 2 treatments. A sedation scale was developed by using psychometric methods, with assessment performed by 6 independent raters who were blind to treatment. Final sedation scale items included posture, palpebral reflex, orbital tightening, lateral recumbency, loss of righting reflex, supraglottic airway device placement, toe pinch, and general appearance. The scale showed construct validity, good to very good interrater reliability for individual items (6 raters; intraclass correlation coefficient, 0.671 to 0.940), very good intrarater reliability (5 raters; intraclass correlation coefficient, 0.951 to 0.987), and excellent internal consistency (Cronbach α, 0.947). The sedation scale performed well under the conditions tested, suggesting that it can be applied in a wider range of settings (different populations, raters, sedation protocols).
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Affiliation(s)
- Juliette Raulic
- Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Vivian Sy Leung
- Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Grayson A Doss
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Jennifer E Graham
- Cummings School of Veterinary Medicine at Tufts University, N Grafton, Massachusetts
| | - Krista A Keller
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, Illinois
| | - Christoph Mans
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Miranda J Sadar
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Claire Vergneau-Grosset
- Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Daniel Sj Pang
- Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada; Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada;,
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26
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Borecka P, Ciaputa R, Janus I, Bubak J, Piotrowska A, Ratajczak-Wielgomas K, Podhorska-OkolÓw M, DziĘgiel P, Nowak M. Expression of Periostin in Mammary Cancer Cells of Female Dogs. In Vivo 2021; 34:3255-3262. [PMID: 33144431 DOI: 10.21873/invivo.12162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND/AIM Periostin (POSTN) has a significant role in proliferation and migration of tumour cells as well as tumour progression. This study aimed to determinate POSTN expression in cancer cells in malignant and benign tumours of the mammary gland in female dogs. MATERIALS AND METHODS All together 83 cancers, 24 adenomas and 7 unchanged fragments of the mammary glands of bitches were investigated. Immunohistochemistry was performed using anti-POSTN, Ki-67 and HER2 antibodies. RESULTS POSTN expression was observed in cancer cells in 31.3% of malignancies and 12.5% of benign tumours. A significantly positive correlation between expression of POSTN in cancer cells and the degree of histological malignancy, expression of Ki-67 antigen and expression of POSTN in CAFs was found. CONCLUSION The obtained results suggest the possible participation of POSTN in the process of carcinogenesis and progression of mammary tumors in bitches.
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Affiliation(s)
- Paulina Borecka
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Rafal Ciaputa
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Izabela Janus
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Joanna Bubak
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | | | | | | | - Piotr DziĘgiel
- Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland.,Department of Physiotherapy, University School of Physical Education in Wroclaw, Wroclaw, Poland
| | - Marcin Nowak
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
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Impact of Histological Subtype on Survival in Canine Mammary Carcinomas: a Retrospective Analysis of 155 Cases. J Comp Pathol 2021; 186:23-30. [PMID: 34340801 DOI: 10.1016/j.jcpa.2021.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 03/08/2021] [Accepted: 05/04/2021] [Indexed: 11/20/2022]
Abstract
Canine mammary carcinoma (CMC) is the most common type of neoplasm in intact female dogs. While a previous study in Western countries validated the 2011 classification as an independent prognostic indicator in CMC, its role in CMC prognostication in Asian countries such as Korea remains unclear. In the present study, we estimate the survival rates in CMC types defined by the 2011 classification, elucidate the prognostic significance of the histological subtype and grade and that of the lymphatic invasion status in CMC, and validate the 2011 classification as an independent prognostic indicator in a large cohort of CMCs (excluding cases of multicentric CMCs). A total of 155 CMC cases retrieved from archived formalin-fixed, paraffin-embedded tissues, along with 2-year follow-up data, were retrospectively analysed. A significant association was found between the histological subtype of the 2011 classification and the tumour-specific survival. Carcinosarcoma, adenosquamous carcinoma and anaplastic carcinoma subtypes were associated with the poorest prognosis. Dogs with comedocarcinoma and solid carcinoma followed a disease course that was more aggressive than that observed in dogs with a carcinoma arising in a benign mixed tumour. Moreover, age, histological grade and lymphatic invasion status significantly correlated with tumour-specific survival in univariate analysis. In multivariate analysis, histological subtype, age and lymphatic invasion status remained independent prognostic factors for CMC.
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28
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Lee S, Lee S, Kim WH. Expression and prognostic value of TRPM7 in canine mammary tumours. Vet Comp Oncol 2021; 19:510-517. [PMID: 33617107 PMCID: PMC8453503 DOI: 10.1111/vco.12689] [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: 11/19/2020] [Revised: 02/19/2021] [Accepted: 02/19/2021] [Indexed: 11/30/2022]
Abstract
Canine mammary gland tumour (CMTs) are one of the most commonly found tumours in intact female dogs. A previous study on canine mammary glands demonstrated the presence of the transient receptor potential melastatin 7 (TRPM7) ion channels in healthy canine mammary tissues. However, the significance of TRPM7 in CMT is not yet known. TRPM7 is a Ca2+ and Mg2+ permeable cation channel that contains a protein kinase domain. The aim of this study was to determine TRPM7 expression in 57 benign and malignant CMT tissues of dogs using immunohistochemistry (IHC) and evaluate its correlation with clinicopathological features and explore the potential prognostic value of TRPM7 in a prospective survival study. IHC analysis shows that TRPM7 was expressed in the cytoplasm of neoplastic epithelial cells. Moreover, TRPM7 expression was significantly associated with tumour malignancy (P = .027), Ki-67 index (P < .0001) and metastasis (P < .0001). Survival curve analysis indicates that high TRPM7 expression was significantly associated with poor disease-free (P = .035) and overall survival (P = .011) in malignant CMTs. Our results demonstrate that TRPM7 is expressed in CMTs and that its expression is positively correlated with clinicopathological parameters. Thus, TRPM7 was assumed to be a potential prognostic factor for CMTs.
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Affiliation(s)
- Seulji Lee
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea
| | - Sungin Lee
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea.,Department of Veterinary Surgery, Heamaru Referral Hospital, Seongnam, Republic of Korea
| | - Wan Hee Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea
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29
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Freytag JO, Queiroz MR, Govoni VM, Pereira IVA, Pulz LH, de Francisco Strefezzi R, Queiroga FL, Cogliati B. Prognostic value of immunohistochemical markers in canine cutaneous mast cell tumours: A systematic review and meta-analysis. Vet Comp Oncol 2021; 19:529-540. [PMID: 33724647 DOI: 10.1111/vco.12692] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 02/26/2021] [Accepted: 03/13/2021] [Indexed: 12/29/2022]
Abstract
Histological grading systems remain cornerstones in the prognosis of canine cutaneous mast cell tumours (MCTs), but the distinct biological behaviour of each tumour often necessitates the use of complementary markers. Although a plethora of immunohistochemical markers have been proposed as prognostic factors, few are presently applied in routine diagnosis. This systematic review and meta-analysis was designed to establish which immunohistochemical markers have verifiable prognostic value for cutaneous MCTs in dogs. A Boolean search of five databases identified 200 articles for screening, of which 73 were selected for full-text assessment and 24 ultimately included in the systematic review. Odds Ratio (OR) was adopted as the summary measure for subsequent meta-analysis but only 15 articles, relating to the immunomarkers Ki-67 (9), KIT (5), and BAX (2), provided either a value for OR or sufficient data to calculate this statistic. Meta-analysis verified that canine cutaneous MCTs with elevated expression of Ki-67 or BAX, as well aberrant immuno-expression of KIT, showed an increased odds of death, with respective OR values of 11.2 (95% CI 6.3-20.0; p < .01), 9.9 (95% CI 1.3-73.6; p = .03), and 4.1 (95% CI 1.1-15.3; p = .03). Despite KIT, Ki67, and BAX arise as suitable prognostic factor for canine MCTs, this study highlighted the lack of important clinical and statistical data in many published articles, rendering it impossible to complete the meta-analysis of several potentially valuable immunohistochemical markers.
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Affiliation(s)
- Jennifer Ostrand Freytag
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Mariana Ramos Queiroz
- Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Verônica Mollica Govoni
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Isabel Veloso Alves Pereira
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Lidia Hildebrand Pulz
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Ricardo de Francisco Strefezzi
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Felisbina Luisa Queiroga
- Center for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Bruno Cogliati
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
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30
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Borecka P, Ratajczak-Wielgomas K, Ciaputa R, Kandefer-Gola M, Janus I, Piotrowska A, Kmiecik A, Podhorska-Okolów M, Dzięgiel P, Nowak M. Expression of Periostin in Cancer-associated Fibroblasts in Mammary Cancer in Female Dogs. In Vivo 2021; 34:1017-1026. [PMID: 32354887 DOI: 10.21873/invivo.11870] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND/AIM Mammary neoplasms, like breast neoplasms in women, are one of the most common tumours in female dogs. Cancer-associated fibroblasts (CAFs) found in the tumour stroma play a role in angiogenesis and increase cell migration, contributing to tumour growth and progression, as well as metastasis. The aim of our work was to determine the level of periostin (POSTN) expression in CAFs in mammary tumours of female dogs. MATERIALS AND METHODS The research material consisted of 77 carcinomas and 24 adenomas of the mammary ridge in female dogs. Immunohistochemistry tests were performed using antibodies directed against the antigens POSTN, Ki-67, ERB-B2 receptor tyrosine kinase 2 (HER2), vimentin, and alpha smooth muscle actin (αSMA). Expression of POSTN at the mRNA level was determined using real-time polymerase chain reaction methods in 20 cases of mammary neoplasms. RESULTS Expression of POSTN in CAFs was observed in 92% of mammary cancer samples and in 25% of mammary adenoma samples in female dogs. A statistically significant increase in POSNT expression in CAFs was found in the carcinomas compared with mammary adenomas in female dogs. Expression of POSTN in CAFs in mammary carcinomas in female dogs positively correlated with the histological malignancy grade of tumours and the expression of Ki-67 proliferative antigen. CONCLUSION Our results suggest a role of POSTN on the pathogenesis of mammary tumours in female dogs. Moreover, POSTN may prove to be a useful marker in the evaluation of cancerous stroma of mammary tumours in female dogs, and may have prognostic significance.
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Affiliation(s)
- Paulina Borecka
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | | | - Rafal Ciaputa
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Małgorzata Kandefer-Gola
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - Izabela Janus
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | | | - Alicja Kmiecik
- Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland
| | | | - Piotr Dzięgiel
- Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland.,Department of Physiotherapy, University School of Physical Education in Wroclaw, Wroclaw, Poland
| | - Marcin Nowak
- Department of Pathology, Division of Pathomorphology and Forensic Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
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Brunetti B, Bacci B, Angeli C, Benazzi C, Muscatello LV. p53, ER, and Ki67 Expression in Canine Mammary Carcinomas and Correlation With Pathological Variables and Prognosis. Vet Pathol 2020; 58:325-331. [PMID: 33208018 DOI: 10.1177/0300985820973462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Using immunohistochemistry, 170 canine mammary carcinomas were evaluated for p53, ER (estrogen receptor), and Ki67. Of the 170 tumors, 89 were grade I (52.3%), 36 were grade II (21.2%), and 45 were grade III (26.4%). Eight cases (0.5%) were positive for p53 and 69/170 cases (40.5%) were positive for ER. Ki67 values were 24 ± 18% (mean ± SD). Using a cutoff value of 33.3% Ki67-positive neoplastic nuclei, 38/159 (23.8%) were classified as high proliferative and 121/159 (76.2%) as low proliferative. p53-positive cases had significantly higher Ki67 expression and higher histological grade. ER expression was not correlated with p53 expression but was significantly related to low Ki67 values and low histological grade. Moreover, ER-positive cases had significantly longer survival compared to ER-negative tumors, and ER expression had better correlation with tumor-related survival than histological grade. In summary, p53 accumulated in a small subset of canine mammary tumors and was associated with higher proliferative activity and higher histological grade. ER expression was confirmed as a differentiation marker associated with more favorable prognosis and biological behavior. The combined use of these 3 markers could be used in addition to histological grade to predict the biological behavior of canine mammary carcinomas.
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Ariyarathna H, Thomson NA, Aberdein D, Perrott MR, Munday JS. Increased programmed death ligand (PD-L1) and cytotoxic T-lymphocyte antigen-4 (CTLA-4) expression is associated with metastasis and poor prognosis in malignant canine mammary gland tumours. Vet Immunol Immunopathol 2020; 230:110142. [PMID: 33129194 DOI: 10.1016/j.vetimm.2020.110142] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/04/2020] [Accepted: 10/15/2020] [Indexed: 12/31/2022]
Abstract
Aberrant expression of immune check point molecules, programmed death ligand (PD-L1) and cytotoxic T-lymphocyte antigen-4 (CTLA-4) has been reported in many human cancers with increased protein and gene expression correlated with an aggressive behaviour in some neoplasms. Additionally, PD-L1 blockade has been shown to be an effective therapy for some human cancers. Canine mammary gland tumours have previously been shown to produce PD-L1 protein, but there are no previous studies investigating CTLA-4 in these common canine neoplasms. The present study investigated protein and gene expression of PD-L1 and CTLA-4 using immunohistochemistry and RT-PCR in 41 histologically-malignant, outcome-known CMGTs. The PD-L1 and CTLA-4 immunostaining scores of the mammary gland tumours that subsequently metastasised were significantly higher than those of tumours which did not metastasise (PD-L1: p = 0.005, CTLA-4: p = 0.003). Gene expression of PD-L1 and CTLA-4 was also significantly higher in tumours which subsequently metastasised (PD-L1: p = 0.023, CTLA-4: p = 0.022). Further, higher PD-L1 or CTLA-4 immunostaining scores correlated with shorter survival times of dogs (PD-L1: rs = - 0.42, p = 0.008, CTLA-4: rs = - 0.4, p = 0.01) while PD-L1 immunostaining was independently prognostic of survival time (Δ F = 4.9, p = 0.035). These findings suggest that higher protein and gene expression of PD-L1 and CTLA-4 by tumour cells increases the chances of metastasis and measuring these proteins may predict likely neoplasm behaviour. Additionally, if increased expression of these proteins promotes metastasis, blocking PD-L1 or CTLA-4 may be beneficial to treat canine mammary gland tumours.
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Affiliation(s)
- Harsha Ariyarathna
- Department of Pathobiology, School of Veterinary Science, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Neroli A Thomson
- Department of Pathobiology, School of Veterinary Science, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Danielle Aberdein
- Department of Pathobiology, School of Veterinary Science, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Matthew R Perrott
- Department of Pathobiology, School of Veterinary Science, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - John S Munday
- Department of Pathobiology, School of Veterinary Science, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
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33
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Ariyarathna H, Thomson N, Aberdein D, Munday JS. Chemokine gene expression influences metastasis and survival time of female dogs with mammary carcinoma. Vet Immunol Immunopathol 2020; 227:110075. [PMID: 32590239 DOI: 10.1016/j.vetimm.2020.110075] [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] [Received: 02/16/2020] [Revised: 04/25/2020] [Accepted: 05/15/2020] [Indexed: 01/02/2023]
Abstract
Chemokines are signaling proteins secreted by immune cells which regulate leukocyte trafficking. The aberrant expression of chemokines and their receptors by neoplastic cells influences the behaviour of many human cancers. This study evaluated gene-expression of the chemokines: CCL5, CXCL10, CXCL12 and the chemokine receptors: CXCR3, CXCR4, CXCR7, CCR4, CCR9 in 41 histologically-malignant, outcome-known, canine mammary tumours. These chemokines and chemokine receptors were selected as all were previously shown to influence the behaviour of human breast cancers. The expression of chemokines CCL5 and CXCL12 were significantly higher in tumours which subsequently metastasised than tumours that did not metastasise (p < 0.05). Increased expression of these chemokines was also correlated with shorter survival times of the dogs (CCL5: rs = -0.40, p = 0.02, CXCL12: rs = -0.40, p = 0.03) while CCL5 was independently prognostic of survival times (p = 0.026). A significantly higher proportion of tumours that subsequently metastasised expressed CXCR3 (p = 0.037), CXCR4 (p = 0.026), CXCR7 (p = 0.025) and CCR9 (p = 0.039) receptors while the survival times of the dogs with tumours that expressed CXCR4 (p = 0.045) and CCR9 (p = 0.039) receptors were significantly shorter than dogs with tumours that did not express these receptors. Chemokine and chemokine receptor gene-expression has not been previously correlated with disease outcome of canine mammary tumours. These findings indicate that altered expression of chemokines and their receptors influences the behaviour of canine mammary tumours suggesting a potential role of them as prognostic markers or therapeutic targets.
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Affiliation(s)
- Harsha Ariyarathna
- School of Veterinary Science, Massey University, Palmerston North, 4442, New Zealand.
| | - Neroli Thomson
- School of Veterinary Science, Massey University, Palmerston North, 4442, New Zealand
| | - Danielle Aberdein
- School of Veterinary Science, Massey University, Palmerston North, 4442, New Zealand
| | - John S Munday
- School of Veterinary Science, Massey University, Palmerston North, 4442, New Zealand
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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.
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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
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35
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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.
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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
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36
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Ferreira HH, Toledo DC, Faria AM, Araújo DP, Nardi ABD, Porto RNG, Moura VMBDD. Immunoexpression of metalloproteinases 9 (MMP-9) and 2 (MMP-2) and their inhibitors (TIMP-1 and TIMP-2) in normal and neoplastic canine mammary tissue. CIÊNCIA ANIMAL BRASILEIRA 2020. [DOI: 10.1590/1809-6891v21e-58640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract The aim of this study was to perform the immunostaining of MMP-9 and MMP-2 and its inhibitors, TIMP-1 and TIMP-2, on normal and neoplastic canine mammary tissue in order to evaluate the behavior of these proteins in extracellular matrix (ECM) remodeling in different neoplastic mammary types. Thus, 48 samples of canine mammary tissue were analyzed, 14 of which complex carcinomas, 13 tubulopapillary carcinomas, six single adenomas and 15 normal mammary tissue. There were differences in MMP-9, TIMP-1 and TIMP-2 according to mammary histomorphology, and MMP-9 presented increased immunoexpression in epithelial and stromal cells in tubulopapillary and complex carcinomas. TIMP-1 exhibited reduced immunostaining in the stromal cells of the complex carcinomas and TIMP-2 enhanced immunostaining in the epithelial cells of tubulopapillary carcinomas. There was a positive correlation between MMP-9 and TIMP-1 in epithelial and stromal cells regarding immunostaining intensity and number of labeled cells in the normal breast. There was a positive correlation between MMP-9 and TIMP-2 in the epithelial cells of tubulopapillary carcinomas. It is concluded that balanced activity between MMP-9, MMP-2, TIMP-1 and TIMP-2 maintains normal canine mammary tissue homeostasis while increased immunoexpression of MMP-9 and TIMP-2 and reduced TIMP- 1 in carcinomas suggest a favorable condition for tumor evolution.
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37
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Viegas C, de Matos AJ, Leite-Martins LR, Viegas I, Ferreira RRF, Gregório H, Santos AA. Determination of urokinase-type plasminogen activator serum levels in healthy and oncologic cats. CANADIAN JOURNAL OF VETERINARY RESEARCH = REVUE CANADIENNE DE RECHERCHE VETERINAIRE 2020; 84:60-66. [PMID: 31949329 PMCID: PMC6923816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/12/2019] [Indexed: 06/10/2023]
Abstract
The urokinase plasminogen activator system (uPAS) has been poorly investigated in veterinary oncology. The aim of this study was to determine uPA serum concentrations in healthy and oncologic cats to understand the potential value of uPA as a cancer biomarker. Serum samples were collected from 19 healthy cats and 18 cats with spontaneous malignant neoplasms and uPA was measured through a specific enzyme-linked immunosorbent assay kit. The differences between uPA values and their relation with intrinsic factors and clinicopathological parameters were analyzed using an analysis of variance (ANOVA) and independent t-test. The average serum concentration of uPA in cancerous cats (0.54 ± 0.22 ng/mL) differed from that of healthy cats (1.10 ± 1.16 ng/mL) but was not significantly influenced by cats' clinicopathological parameters or by the presence of metastases. This study describes, for the first time, the serum concentrations of uPA in cats and proposes directions for future studies to uncover the relevance of uPAS in feline carcinogenesis.
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Affiliation(s)
- Cláudia Viegas
- Department of Veterinary Clinics, Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, Lisbon, Portugal (Viegas C, Viegas I); Animal Blood Bank, R. de João de Deus 741, Porto, Portugal (Ferreira); Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar, University of Porto, R. Jorge Viterbo Ferreira 228, Porto, Portugal (de Matos, Leite-Martins, Santos); Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute, P. Gomes Teixeira, Porto, Portugal (de Matos, Santos); Centro Hospitalar Veterinário, Porto, Portugal (Gregório)
| | - Augusto J de Matos
- Department of Veterinary Clinics, Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, Lisbon, Portugal (Viegas C, Viegas I); Animal Blood Bank, R. de João de Deus 741, Porto, Portugal (Ferreira); Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar, University of Porto, R. Jorge Viterbo Ferreira 228, Porto, Portugal (de Matos, Leite-Martins, Santos); Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute, P. Gomes Teixeira, Porto, Portugal (de Matos, Santos); Centro Hospitalar Veterinário, Porto, Portugal (Gregório)
| | - Liliana R Leite-Martins
- Department of Veterinary Clinics, Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, Lisbon, Portugal (Viegas C, Viegas I); Animal Blood Bank, R. de João de Deus 741, Porto, Portugal (Ferreira); Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar, University of Porto, R. Jorge Viterbo Ferreira 228, Porto, Portugal (de Matos, Leite-Martins, Santos); Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute, P. Gomes Teixeira, Porto, Portugal (de Matos, Santos); Centro Hospitalar Veterinário, Porto, Portugal (Gregório)
| | - Inês Viegas
- Department of Veterinary Clinics, Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, Lisbon, Portugal (Viegas C, Viegas I); Animal Blood Bank, R. de João de Deus 741, Porto, Portugal (Ferreira); Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar, University of Porto, R. Jorge Viterbo Ferreira 228, Porto, Portugal (de Matos, Leite-Martins, Santos); Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute, P. Gomes Teixeira, Porto, Portugal (de Matos, Santos); Centro Hospitalar Veterinário, Porto, Portugal (Gregório)
| | - Rui R F Ferreira
- Department of Veterinary Clinics, Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, Lisbon, Portugal (Viegas C, Viegas I); Animal Blood Bank, R. de João de Deus 741, Porto, Portugal (Ferreira); Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar, University of Porto, R. Jorge Viterbo Ferreira 228, Porto, Portugal (de Matos, Leite-Martins, Santos); Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute, P. Gomes Teixeira, Porto, Portugal (de Matos, Santos); Centro Hospitalar Veterinário, Porto, Portugal (Gregório)
| | - Hugo Gregório
- Department of Veterinary Clinics, Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, Lisbon, Portugal (Viegas C, Viegas I); Animal Blood Bank, R. de João de Deus 741, Porto, Portugal (Ferreira); Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar, University of Porto, R. Jorge Viterbo Ferreira 228, Porto, Portugal (de Matos, Leite-Martins, Santos); Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute, P. Gomes Teixeira, Porto, Portugal (de Matos, Santos); Centro Hospitalar Veterinário, Porto, Portugal (Gregório)
| | - Andreia A Santos
- Department of Veterinary Clinics, Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, Lisbon, Portugal (Viegas C, Viegas I); Animal Blood Bank, R. de João de Deus 741, Porto, Portugal (Ferreira); Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar, University of Porto, R. Jorge Viterbo Ferreira 228, Porto, Portugal (de Matos, Leite-Martins, Santos); Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute, P. Gomes Teixeira, Porto, Portugal (de Matos, Santos); Centro Hospitalar Veterinário, Porto, Portugal (Gregório)
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38
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Markkanen E. Know Thy Model: Charting Molecular Homology in Stromal Reprogramming Between Canine and Human Mammary Tumors. Front Cell Dev Biol 2019; 7:348. [PMID: 31921858 PMCID: PMC6927989 DOI: 10.3389/fcell.2019.00348] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/03/2019] [Indexed: 12/24/2022] Open
Abstract
Spontaneous canine simple mammary tumors (CMTs) are often viewed as models of human breast cancer. Cancer-associated stroma (CAS) is central for initiation and progression of human cancer, and is likely to play a key role in canine tumors as well. Until recently, however, canine CAS in general, and in CMT in particular, lacked detailed characterization and it remained unclear how canine and human CAS compare. This void in knowledge regarding canine CAS and the resulting lack of unbiased cross-species analysis of molecular homologies and differences undermined the validity of the canine model for human disease. To assess stromal reprogramming in canine breast tumors, we have recently established a protocol to specifically isolate and analyze CAS and matched normal stroma from archival, formalin-fixed paraffin embedded (FFPE) clinical tumor samples using laser-capture microdissection followed by next-generation RNA-sequencing. Using this approach, we have analyzed stromal reprogramming in both malignant canine mammary carcinomas (mCAs) as well as benign canine mammary adenomas in a series of studies. Our results demonstrate strong stromal reprogramming in CMTs and identify high-grade molecular homology between human and canine CAS. Here, I aim to give a short background on the value of comparative oncology in general, and spontaneous CMT in particular. This will be followed by a concise review of the current knowledge of stromal reprogramming in both malignant canine mCA and benign adenoma. Finally, I will conclude with insights on highly conserved aspects of stromal reprogramming between CMT and human breast cancer that accentuate the relevance of CAS in CMT as a model for the human disease.
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Affiliation(s)
- Enni Markkanen
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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39
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Sinha R, Sinha B, Kumari R, M.R. V, Verma A, Gupta ID. Effect of season, stage of lactation, parity and level of milk production on incidence of clinical mastitis in Karan Fries and Sahiwal cows. BIOL RHYTHM RES 2019. [DOI: 10.1080/09291016.2019.1621064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Rebeka Sinha
- Molecular Genetics Lab, Animal Genetics and Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Beena Sinha
- Molecular Genetics Lab, Animal Genetics and Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Ragini Kumari
- Molecular Genetics Lab, Animal Genetics and Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Vineeth M.R.
- Molecular Genetics Lab, Animal Genetics and Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Archana Verma
- Molecular Genetics Lab, Animal Genetics and Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - I. D. Gupta
- Molecular Genetics Lab, Animal Genetics and Breeding Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
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40
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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]
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41
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Dong H, Diao H, Zhao Y, Xu H, Pei S, Gao J, Wang J, Hussain T, Zhao D, Zhou X, Lin D. Overexpression of matrix metalloproteinase-9 in breast cancer cell lines remarkably increases the cell malignancy largely via activation of transforming growth factor beta/SMAD signalling. Cell Prolif 2019; 52:e12633. [PMID: 31264317 PMCID: PMC6797518 DOI: 10.1111/cpr.12633] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/25/2019] [Accepted: 04/17/2019] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Matrix metalloproteinase 9 (MMP-9) has been frequently noticed in the breast cancers. In this study, we aim to investigate the associations of MMP-9 with the activation of transforming growth factor beta (TGF-β)/SMAD signalling and the malignancy of breast malignant tumour cells. MATERIALS AND METHODS The distributions of MMP-9 and TGF-β in the tissues of canine breast cancers were screened by immunohistochemical assays. A recombinant plasmid expressing mouse MMP-9 was generated and transiently transfected into three different breast cancer cell lines. Cell Counting Kit-8 and colony formation assay were used to study cell viability. Migration and invasion ability were analysed by wound assay and transwell filters. Western blot and quantitative real-time PCR were used to determine the protein and mRNA expression. RESULT Remarkable strong MMP-9 and TGF-β signals were observed in the malignant tissues of canine breast cancers. In the cultured three cell lines receiving recombinant plasmid expressing mouse MMP-9, the cell malignancy was markedly increased, including the cell colony formation, migration and epithelial-mesenchymal transition. The levels of activated TGF-β, as well as SMAD4, SMAD2/3 and phosphorylation of SMAD2, were increased, reflecting an activation of TGF-β/SMAD signalling. We also demonstrated that the inhibitors specific for MMP-9 and TGF-β sufficiently blocked the overexpressing MMP-9 induced the activation of SMAD signalling and enhancement on invasion in the tested breast cancer cell lines. CONCLUSION Overexpression of MMP-9 increases the malignancy of breast cancer cell lines, largely via activation of the TGF-β/SMAD signalling.
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Affiliation(s)
- Haodi Dong
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China.,Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hongxiu Diao
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ying Zhao
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Huihao Xu
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Shimin Pei
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jiafeng Gao
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jie Wang
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Tariq Hussain
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Deming Zhao
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xiangmei Zhou
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Degui Lin
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
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42
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Mestrinho LA, Pissarra H, Carvalho S, Peleteiro MC, Gawor J, Niza MMRE. Comparison of Histological and Proliferation Features of Canine Oral Squamous Cell Carcinoma Based on Intraoral Location: 36 Cases. J Vet Dent 2019. [PMID: 28631549 DOI: 10.1177/0898756417713979] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Grade and labeling indices for immunohistochemical tumor proliferation markers Ki-67 and proliferating cell nuclear antigen (PCNA) were evaluated in 36 cases of canine oral squamous cell carcinoma (OSCC) based upon intraoral location. Grade was significantly associated with location ( P = .035). Grade II tumors were most frequently diagnosed. Grade I tumors were identified in the gingiva and the buccal mucosa, and grade III tumors were seen in the gingiva and the tonsillar region. Animals with tumors arising from the tonsils and of the tongue tended to be older ( P = .007), and those in the former group were more likely to have metastatic disease at the time of diagnosis ( P = .001). Mean expression of PCNA and Ki-67 proliferation index (PI) for all tumors were 62.54% and 50.70%, respectively, and there was a statistical significant association between the 2 variables ( R = .70; P < .001). Proliferation index was not associated with any of the intraoral locations evaluated, but higher PCNA PI was significantly associated with grade ( P = .031). Ki-67 PI was significantly associated with lymph node metastasis at the time of diagnosis, especially for OSCC of gingival location ( P = .028). The results obtained in this study are preliminary but clinically relevant, since they provide information that can explain differences in biologic behavior among intraoral locations and contribute to more accurate tumor staging to support the choice for different treatment strategies available for OSCC.
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Affiliation(s)
- Lisa A Mestrinho
- 1 Interdisciplinary Centre of Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Hugo Pissarra
- 1 Interdisciplinary Centre of Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Sandra Carvalho
- 1 Interdisciplinary Centre of Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Maria C Peleteiro
- 1 Interdisciplinary Centre of Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Jerzy Gawor
- 2 Klinika Weterynaryjna Arka, Kraków, Poland
| | - Maria M R E Niza
- 1 Interdisciplinary Centre of Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
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Vilhena H, Tvarijonaviciute A, Cerón JJ, Figueira AC, Miranda S, Ribeiro A, Canadas A, Dias-Pereira P, Rubio CP, Franco L, Tecles F, Cabeças R, Pastor J, Silvestre-Ferreira AC. Acute phase proteins and biomarkers of oxidative status in feline spontaneous malignant mammary tumours. Vet Comp Oncol 2019; 17:394-406. [PMID: 31025532 DOI: 10.1111/vco.12486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 04/15/2019] [Accepted: 04/17/2019] [Indexed: 12/27/2022]
Abstract
Acute phase proteins (APP) and biomarkers of oxidative status change in human and canine mammary tumours, however, they have not been studied in feline mammary tumours. The aims of this study were to investigate the APP and antioxidant responses in feline malignant mammary tumours, to evaluate their relation with tumour features, and to assess their prognostic value. Serum amyloid A (SAA), haptoglobin (Hp), albumin, butyrylcholinesterase (BChE), insulin-like growth factor1 (IGF1), paraoxonase1 (PON1), total serum thiols (Thiol), glutathione peroxidase (GPox) and total antioxidant capacity determined by different assays, including trolox equivalent antioxidant capacity assessed by two different methodologies (TEAC1/2), ferric reducing ability of plasma (FRAP), and cupric reducing antioxidant capacity (CUPRAC), were determined in serum of 50 queens with spontaneous mammary carcinomas and of 12 healthy female cats. At diagnosis, diseased queens presented significantly higher SAA and Hp, and lower albumin, BChE, GPox, TEAC1, TEAC2 and CUPRAC than controls. Different tumour features influenced concentrations of APP and antioxidants. Increases in serum Hp, and decreases in albumin, Thiol and FRAP were significantly associated with neoplastic vascular emboli, metastasis in regional lymph nodes and/or in distant organs. Distant metastasis development during the course of the disease was associated with increases in SAA and TEAC1. At diagnosis, decreased albumin was associated with a longer survival, and BChE <1.15 μmoL/mL.minute was associated with a shorter survival time on multivariate analysis. Feline malignant mammary tumours are associated with an APP response and oxidative stress, and different tumour features influence the inflammatory response and the oxidative damage. Furthermore, some of these analytes proved to have prognostic value.
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Affiliation(s)
- Hugo Vilhena
- Department of Veterinary Medicine, Center for Investigation Vasco da Gama (CIVG), Vasco da Gama Universitary School, Coimbra, Portugal.,Baixo Vouga Veterinary Hospital, Águeda, Portugal.,Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Asta Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis of University of Murcia (Interlab-UMU), University of Murcia, Murcia, Spain
| | - José J Cerón
- Interdisciplinary Laboratory of Clinical Analysis of University of Murcia (Interlab-UMU), University of Murcia, Murcia, Spain
| | - Ana C Figueira
- Department of Veterinary Medicine, Center for Investigation Vasco da Gama (CIVG), Vasco da Gama Universitary School, Coimbra, Portugal.,University Veterinary Hospital of Coimbra, Coimbra, Portugal
| | - Sónia Miranda
- Baixo Vouga Veterinary Hospital, Águeda, Portugal.,Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
| | - Ana Ribeiro
- Veterinary Policlinic of Aveiro, Aveiro, Portugal
| | - Ana Canadas
- Department of Pathology and Molecular Immunology, Institute for the Biomedical Sciences Abel Salazar, Porto University (ICBAS-UP), Porto, Portugal
| | - Patrícia Dias-Pereira
- Department of Pathology and Molecular Immunology, Institute for the Biomedical Sciences Abel Salazar, Porto University (ICBAS-UP), Porto, Portugal
| | - Camila P Rubio
- Interdisciplinary Laboratory of Clinical Analysis of University of Murcia (Interlab-UMU), University of Murcia, Murcia, Spain
| | - Lorena Franco
- Interdisciplinary Laboratory of Clinical Analysis of University of Murcia (Interlab-UMU), University of Murcia, Murcia, Spain
| | - Fernando Tecles
- Interdisciplinary Laboratory of Clinical Analysis of University of Murcia (Interlab-UMU), University of Murcia, Murcia, Spain
| | - Ricardo Cabeças
- Department of Veterinary Medicine, Center for Investigation Vasco da Gama (CIVG), Vasco da Gama Universitary School, Coimbra, Portugal
| | - Josep Pastor
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, Barcelona, Spain
| | - Ana C Silvestre-Ferreira
- Animal and Veterinary Research Centre (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
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44
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Canadas A, França M, Pereira C, Vilaça R, Vilhena H, Tinoco F, Silva MJ, Ribeiro J, Medeiros R, Oliveira P, Dias-Pereira P, Santos M. Canine Mammary Tumors: Comparison of Classification and Grading Methods in a Survival Study. Vet Pathol 2018; 56:208-219. [PMID: 30381007 DOI: 10.1177/0300985818806968] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Histopathology remains the cornerstone for diagnosing canine mammary tumors (CMTs). Recently, 2 classification systems (the World Health Organization [WHO] classification of 1999 and the proposal of 2011) and 2 grading methods based on the human Nottingham grade have been used by pathologists. Despite some evidence that the histological subtype and grade are prognostic factors, there is no comprehensive comparative study of these classification and grading systems in the same series of CMTs. In this study, the 2 classifications and the 2 grading methods were simultaneously applied to a cohort of 134 female dogs with CMTs. In 85 animals with malignant tumors, univariable and multivariable survival analyses were performed. Using the 2 systems, the proportion of benign (161/305, 53%) and malignant (144/305, 47%) tumors was similar and no significant differences existed in categorization of benign tumors. However, the 2011 classification subdivided malignant tumors in more categories-namely, those classified as complex, solid, and tubulopapillary carcinomas by the WHO system. Histological subtype according to both systems was significantly associated with survival. Carcinomas arising in benign tumors, complex carcinomas, and mixed carcinomas were associated with a better prognosis. In contrast, carcinosarcomas and comedocarcinomas had a high risk of tumor-related death. Slight differences existed between the 2 grading methods, and grade was related to survival only in univariable analysis. In this cohort, age, completeness of surgical margins, and 2 index formulas adapted from human breast cancer studies (including tumor size, grade, and vascular/lymph node invasion) were independent prognostic factors.
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Affiliation(s)
- Ana Canadas
- 1 Department of Pathology and Molecular Immunology, Instituto Ciências Biomédicas Abel Salazar, ICBAS, UPorto, University of Porto, Porto, Portugal
| | - Miguel França
- 2 UPVet-Veterinary Hospital, Instituto Ciências Biomédicas Abel Salazar, ICBAS, UPorto, University of Porto, Porto, Portugal
| | | | | | - Hugo Vilhena
- 5 Baixo Vouga Veterinary Hospital, Águeda, Portugal.,6 Department of Veterinary Sciences, Vasco da Gama Universitary School, Coimbra, Portugal.,7 Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Flora Tinoco
- 8 Dra. Flora Tinoco Veterinary Clinic, Maia, Portugal
| | | | - Jorge Ribeiro
- 2 UPVet-Veterinary Hospital, Instituto Ciências Biomédicas Abel Salazar, ICBAS, UPorto, University of Porto, Porto, Portugal
| | - Rui Medeiros
- 10 Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Pedro Oliveira
- 11 Department of Populations Studies, Instituto Ciências Biomédicas Abel Salazar, ICBAS, UPorto, University of Porto, Porto, Portugal
| | - Patrícia Dias-Pereira
- 1 Department of Pathology and Molecular Immunology, Instituto Ciências Biomédicas Abel Salazar, ICBAS, UPorto, University of Porto, Porto, Portugal
| | - Marta Santos
- 12 Department of Microscopy, Instituto Ciências Biomédicas Abel Salazar, ICBAS, UPorto, University of Porto, Porto, Portugal
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45
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Kaszak I, Ruszczak A, Kanafa S, Kacprzak K, Król M, Jurka P. Current biomarkers of canine mammary tumors. Acta Vet Scand 2018; 60:66. [PMID: 30373614 PMCID: PMC6206704 DOI: 10.1186/s13028-018-0417-1] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 10/20/2018] [Indexed: 12/22/2022] Open
Abstract
Mammary tumors are the second most common neoplasia in dogs. Due to the high similarity of canine mammary tumors (CMT) to human breast cancers (HBC), human biomarkers of HBC are also detectable in cases of CMT. The evaluation of biomarkers enables clinical diagnoses, treatment options and prognosis for bitches suffering from this disease. The aim of this article is to give a short summary of the biomarkers of CMT based on current literature. Very promising biomarkers are miRNAs, cancer stem cells, and circulating tumor cells, as well as mutations of the breast cancer 1 gene (BRCA1) and breast cancer 2 gene (BRCA2). Until now, the most studied and reliable biomarkers of CMT have remained antigen Ki-67 (Ki-67), endothelial growth factor receptor, human epidermal growth factor receptor 2 (HER-2), estrogen receptor, progesterone receptor and cyclooxygenase 1 (COX-2), which can be detected in both serum and tissue samples using different molecular methods. However, carcinoembryonic antigen and cancer antigen 15-3 (CA 15-3), while poorly studied, seem to be good biomarkers, especially for the early detection and prognosis of CMT. We will also mention the following: proliferative cell nuclear antigen, tumor protein p53 (p53), E-cadherin, vascular endothelial growth factor, microRNAs, cancer stem cells and circulating tumor cells, which can also be useful biomarkers. Although many studies have been conducted so far, the estimation of biomarkers in cases of CMT is still not a common practice, and more detailed research should be done.
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46
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Monteiro L, Rodrigues M, Gomes D, Salgado B, Cassali G. Tumour-associated macrophages: Relation with progression and invasiveness, and assessment of M1/M2 macrophages in canine mammary tumours. Vet J 2018; 234:119-125. [DOI: 10.1016/j.tvjl.2018.02.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 02/20/2018] [Accepted: 02/22/2018] [Indexed: 12/16/2022]
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47
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Wei L, Yao M, Zhao Z, Jiang H, Ge S. High-fat diet aggravates postoperative cognitive dysfunction in aged mice. BMC Anesthesiol 2018; 18:20. [PMID: 29439655 PMCID: PMC5812108 DOI: 10.1186/s12871-018-0482-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/23/2018] [Indexed: 12/12/2022] Open
Abstract
Background Silent Information Regulator 1 (Sirt1) and apoptosis play key roles in postoperative cognitive dysfunction (POCD). Consuming a high-fat diet (HFD), a prevalent type of diet in modern society, has been increasingly recognized as contributing to neurodegenerative diseases. Although Sirt1 and apoptosis are significant responders to HFD in the brain, little is known regarding the functional correlations between HFD and POCD. Methods Thirty-two aged C57BL/6 male mice were randomly divided into 2 groups: an ad libitum (AL) group (fed a regular diet) and high-fat diet (HF) group (fed a high-fat diet). After 8 weeks, the animals were divided into four sub-groups: an ad libitum control (ALC) group, ad libitum surgery (ALS) group, high-fat diet control (HFC) group, and high-fat diet surgery (HFS) group. The ALS and HFS groups were exposed to 3% sevoflurane in 33% oxygen for 3 h and were subsequently subjected to exploratory surgery to establish the POCD model. The ALC and HFC groups were treated with 33% oxygen for 3 h without surgery. After 48 h, the learning and memory abilities of mice in each group were tested using the Morris water maze (MWM). The expression levels of Sirt1, Bcl-2, Bax and caspase-3 cleaved were detected by western blot. Results The MWM and western blotting results showed that the learning and memory abilities were decreased in the HFC group compared with the ALC group. The learning and memory abilities and the expression of Sirt1 in the hippocampus in the HFS group were significantly decreased compared with the other groups. A significant decrease in Sirt1 expression was also observed in the HFC group compared with the ALS group. The level of Bcl-2 was lower in the HFS group than in the HFC and ALC groups. The expression levels of caspase-3 cleaved and Bax increased in the HFS group compared with the HFC group. Moreover, the expression of caspase-3 cleaved was higher in the HFC group than in the ALS group. Conclusion HFD can aggravate POCD in aged C57BL/6 mice, an effect that may be related to the inhibition expression of Sirt1 and the promotion of neuronal apoptosis.
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Affiliation(s)
- Lan Wei
- Department of Anesthesia, Zhongshan Hospital Qingpu Branch affiliated to Fudan University, Shanghai, China
| | - Minmin Yao
- Department of Anesthesia, Zhongshan Hospital affiliated to Fudan University, Shanghai, China
| | - Zhimeng Zhao
- Department of Anesthesia, Zhongshan Hospital affiliated to Fudan University, Shanghai, China
| | - Hui Jiang
- Department of Anesthesia, Zhongshan Hospital Qingpu Branch affiliated to Fudan University, Shanghai, China.
| | - Shengjin Ge
- Department of Anesthesia, Zhongshan Hospital affiliated to Fudan University, Shanghai, China.
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48
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Gautam M, Ridler A, Wilson PR, Heuer C. Control of clinical paratuberculosis in New Zealand pastoral livestock. N Z Vet J 2017; 66:1-8. [DOI: 10.1080/00480169.2017.1379914] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M Gautam
- Institute of Veterinary, Animal and Biomedical Sciences (IVABS), EpiCentre, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
| | - A Ridler
- International Sheep Research Centre, IVABS, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - PR Wilson
- Institute of Veterinary, Animal and Biomedical Sciences (IVABS), EpiCentre, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
| | - C Heuer
- Institute of Veterinary, Animal and Biomedical Sciences (IVABS), EpiCentre, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
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49
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Tsai MA, Chen IH, Wang JH, Chou SJ, Li TH, Leu MY, Ho HK, Yang WC. A probe-based qRT-PCR method to profile immunological gene expression in blood of captive beluga whales ( Delphinapterus leucas). PeerJ 2017; 5:e3840. [PMID: 28970970 PMCID: PMC5622604 DOI: 10.7717/peerj.3840] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 09/01/2017] [Indexed: 12/20/2022] Open
Abstract
Cytokines are fundamental for a functioning immune system, and thus potentially serve as important indicators of animal health. Quantitation of mRNA using quantitative reverse transcription polymerase chain reaction (qRT-PCR) is an established immunological technique. It is particularly suitable for detecting the expression of proteins against which monoclonal antibodies are not available. In this study, we developed a probe-based quantitative gene expression assay for immunological assessment of captive beluga whales (Delphinapterus leucas) that is one of the most common cetacean species on display in aquariums worldwide. Six immunologically relevant genes (IL-2Rα, -4, -10, -12, TNFα, and IFNγ) were selected for analysis, and two validated housekeeping genes (PGK1 and RPL4) with stable expression were used as reference genes. Sixteen blood samples were obtained from four animals with different health conditions and stored in RNAlater™ solution. These samples were used for RNA extraction followed by qRT-PCR analysis. Analysis of gene transcripts was performed by relative quantitation using the comparative Cq method with the integration of amplification efficiency and two reference genes. The expression levels of each gene in the samples from clinically healthy animals were normally distributed. Transcript outliers for IL-2Rα, IL-4, IL-12, TNFα, and IFNγ were noticed in four samples collected from two clinically unhealthy animals. This assay has the potential to identify immune system deviation from normal state, which is caused by health problems. Furthermore, knowing the immune status of captive cetaceans could help both trainers and veterinarians in implementing preventive approaches prior to disease onset.
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Affiliation(s)
- Ming-An Tsai
- Department of Biology, National Museum of Marine Biology and Aquarium, Pingtung, Taiwan
| | - I-Hua Chen
- College of Veterinary Medicine, National Chiayi University, Chiayi, Taiwan
| | - Jiann-Hsiung Wang
- College of Veterinary Medicine, National Chiayi University, Chiayi, Taiwan
| | - Shih-Jen Chou
- College of Veterinary Medicine, National Chiayi University, Chiayi, Taiwan
| | - Tsung-Hsien Li
- Department of Biology, National Museum of Marine Biology and Aquarium, Pingtung, Taiwan
| | - Ming-Yih Leu
- Department of Biology, National Museum of Marine Biology and Aquarium, Pingtung, Taiwan
| | - Hsiao-Kuan Ho
- Department of Biology, Hi-Scene World Enterprise Co. Ltd., Pingtung, Taiwan
| | - Wei Cheng Yang
- College of Veterinary Medicine, National Chiayi University, Chiayi, Taiwan
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50
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Ramos SC, de Matos AJ, Ribeiro JN, Leite-Martins LR, Ferreira RRF, Viegas I, Santos AA. Serum levels of urokinase-type plasminogen activator in healthy dogs and oncologic canine patients. Vet World 2017; 10:918-923. [PMID: 28919683 PMCID: PMC5591479 DOI: 10.14202/vetworld.2017.918-923] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 03/03/2017] [Indexed: 02/06/2023] Open
Abstract
AIM Urokinase plasminogen activator (uPA) has been scarcely studied in veterinary oncology. The aim of this study was to determine the uPA serum concentrations in healthy and oncologic canine patients and to investigate its potential value as a tumor biomarker. MATERIALS AND METHODS Serum uPA concentrations of healthy and oncologic canine patients were measured by enzyme-linked immunosorbent assay. Their relationships with the dogs' health status and tumor characteristics were analyzed through ANOVA and independent t-test. RESULTS There were no significant differences between mean serum values (±standard deviation) of healthy dogs (0.19±0.13 ng/ml) and oncologic canine patients (0.22±0.33 ng/ml), or between dogs with benign or malignant tumors, and with or without metastases, although the latter tended to show higher uPA serum levels. CONCLUSION This is the first study describing the uPA serum levels in dogs. Although its results do not support uPA as a tumor biomarker, higher uPA levels in dogs with metastatic neoplasms may reflect the role of the enzyme in tumor progression.
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Affiliation(s)
- Sofia C. Ramos
- Department of Veterinary Clinics, Faculty of Veterinary Medicine of the University Lusófona of Humanities and Technologies, Campo Grande 376, Lisbon, Portugal
| | - Augusto J. de Matos
- Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar (ICBAS), University of Porto, R. Jorge Viterbo Ferreira no. 228, Porto, Portugal
- Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute (CECA/ICETA), P. Gomes Teixeira, Portugal
| | - João Niza Ribeiro
- Department of Population Studies, Biomedical Sciences Institute of Abel Salazar (ICBAS), University of Porto, R. Jorge Viterbo Ferreira no. 228, Porto, Portugal
- Institute of Public Health, University of Porto, R. das Taipas 135, Porto, Portugal
| | - Liliana R. Leite-Martins
- Department of Veterinary Clinics of the Biomedical Sciences Institute of Abel Salazar (ICBAS), University of Porto, R. Jorge Viterbo Ferreira no. 228, Porto, Portugal
| | - Rui R. F. Ferreira
- Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute (CECA/ICETA), P. Gomes Teixeira, Portugal
- Animal Blood Bank (BSA), R. Jorge Viterbo Ferreira no. 228, Porto, Portugal
| | - Inês Viegas
- Department of Veterinary Clinics, Faculty of Veterinary Medicine of the University Lusófona of Humanities and Technologies, Campo Grande 376, Lisbon, Portugal
| | - Andreia A. Santos
- Department of Veterinary Clinics, Faculty of Veterinary Medicine of the University Lusófona of Humanities and Technologies, Campo Grande 376, Lisbon, Portugal
- Animal Science and Study Centre/Food and Agrarian Sciences and Technologies Institute (CECA/ICETA), P. Gomes Teixeira, Portugal
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