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Hicks KA, Leeper HJ, Curran KM. Retrospective evaluation of toceranib phosphate (Palladia) in the treatment of canine carcinomatosis and mesothelioma. Vet Comp Oncol 2024; 22:245-254. [PMID: 38622074 DOI: 10.1111/vco.12972] [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: 11/01/2023] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 04/17/2024]
Abstract
Canine carcinomatosis (CC) and mesothelioma (CM) are rare but aggressive neoplasms that historically have been associated with poor prognoses. There is limited information regarding treatment for CC and CM. The purpose of this retrospective study was to evaluate the efficacy and tolerability of toceranib phosphate (Palladia) in dogs with CC and CM. Cases were solicited from the American College of Veterinary Internal Medicine (ACVIM) Oncology listserv and retrospectively reviewed. For eligibility, a cytologic and/or histopathologic diagnosis of CC or CM was required. A total of 23 cases were included (CC = 14, CM = 8, both = 1). Eighty-two percent (19/23) of dogs presented with effusion. The best overall response rate (BORR) was 30.4% (13% complete response [CR], 17.3% partial response [PR]). Stable disease (SD) was appreciated in 14 dogs (60.8%) including the four dogs without effusion. The most common toceranib-related adverse events were either Grade 1 and 2 diarrhea or hyporexia. The median progression-free survival (PFS) was 171 days (range, 7-519 days) and overall median survival time (MST) was 301 days (range, 49-875 days) for all dogs. When evaluating dogs solely with effusion, the median PFS and overall MST were 171 days (range, 7-519 days) and 285 days (range, 49-875 days), respectively. This report demonstrates that toceranib is both well tolerated and a potential treatment for CC and CM. A randomised, controlled, prospective study would be needed to objectively assess the survival benefit of toceranib in the management of CC and CM, with and without effusion.
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Affiliation(s)
- Kelly A Hicks
- Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
| | - Haley J Leeper
- Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
| | - Kaitlin M Curran
- Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
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2
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Sato Y, Elbadawy M, Suzuki K, Tsunedomi R, Nagano H, Ishihara Y, Yamamoto H, Azakami D, Uchide T, Nabeta R, Fukushima R, Abugomaa A, Kaneda M, Yamawaki H, Shinohara Y, Usui T, Sasaki K. Establishment of an experimental model of canine malignant mesothelioma organoid culture using a three-dimensional culture method. Biomed Pharmacother 2023; 162:114651. [PMID: 37030135 DOI: 10.1016/j.biopha.2023.114651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/21/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023] Open
Abstract
Canine malignant mesothelioma (cMM) is a rare and drug-resistant malignant tumor. Due to few patients and experimental models, there have not been enough studies to demonstrate the pathogenesis of the disease and novel effective treatment for cMM. Since cMM resembles human MM (hMM) in histopathological characteristics, it is also considered a promising research model of hMM. Compared with conventional 2-dimensional (2D) culture methods, 3-dimensional (3D) organoid culture can recapitulate the properties of original tumor tissues. However, cMM organoids have never been developed. In the present study, we for the first time generated cMM organoids using the pleural effusion samples. Organoids from individual MM dogs were successfully generated. They exhibited the characteristics of MM and expressed mesothelial cell markers, such as WT-1 and mesothelin. The sensitivity to anti-cancer drugs was different in each strain of cMM organoids. RNA sequencing analysis showed cell adhesion molecule pathways were specifically upregulated in cMM organoids compared with their corresponding 2D cultured cells. Among these genes, the expression level of E-cadherin was drastically higher in the organoids than that in the 2D cells. In conclusion, our established cMM organoids might become a new experimental tool to provide new insights into canine and human MM therapy.
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Affiliation(s)
- Yomogi Sato
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Mohamed Elbadawy
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, 13736, Moshtohor, Toukh, Elqaliobiya, Egypt.
| | - Kazuhiko Suzuki
- Laboratory of Veterinary Toxicology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Ryouichi Tsunedomi
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - Yusuke Ishihara
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Haru Yamamoto
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Tsuyoshi Uchide
- Laboratory of Veterinary Molecular Pathology and Therapeutics, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Rina Nabeta
- Laboratory of Veterinary Molecular Pathology and Therapeutics, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Ryuji Fukushima
- Animal Medical Emergency Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Amira Abugomaa
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; Faculty of Veterinary Medicine, Mansoura University, 35516 Mansoura, Egypt
| | - Masahiro Kaneda
- Laboratory of Veterinary Anatomy, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, 35-1, Higashi 23 ban-cho, Towada, Aomori 034-8628, Japan
| | - Yuta Shinohara
- Pet Health & Food Division, Iskara Industry CO., LTD, 1-14-2, Nihonbashi, Chuo-ku, Tokyo, 103-0027, Japan
| | - Tatsuya Usui
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
| | - Kazuaki Sasaki
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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3
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Marin J, Ferris K, Gruber E. What is your diagnosis? Perineal swelling in a dog. Vet Clin Pathol 2023; 52 Suppl 2:107-109. [PMID: 36617699 DOI: 10.1111/vcp.13172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 05/02/2022] [Accepted: 05/27/2022] [Indexed: 01/10/2023]
Affiliation(s)
- Jessica Marin
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Kelli Ferris
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Erika Gruber
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
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4
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Lajoinie M, Chavalle T, Floch F, Sayag D, Lanore D, Ponce F, Chamel G. Outcome of dogs treated with chemotherapy for mesothelioma: A retrospective clinical study on 40 cases and a literature review. Vet Comp Oncol 2022; 20:825-835. [PMID: 35633310 PMCID: PMC9796774 DOI: 10.1111/vco.12843] [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: 11/15/2021] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 01/07/2023]
Abstract
Mesothelioma is an uncommon cancer in dogs for which there is no established standard of care. Chemotherapy is often suggested despite no definitive proof of efficacy. The aim of this study was to evaluate the impact of chemotherapy on survival of dogs with mesothelioma. A retrospective multicentric study was carried out. To be included, dogs needed to present an evocative clinical evolution and a morphological diagnosis of mesothelioma. Exclusion of other cause of effusion and complete clinical follow-up were also required. Fourty dogs were included, 27 received chemotherapy (group 1) and 13 did not (group 2). Groups were heterogeneous regarding the proportion of animals undergoing surgery as part of their treatment (16 in group 1, 2 in group 2; p = .016) and homogeneous otherwise. Univariate analysis showed that dogs from group 1 survived significantly longer than dogs from group 2 (MST: 366 vs. 74 days; p < .001). Complete resolution of effusion after the first chemotherapy administration positively correlated with survival in group 1 (MST: 415 vs. 160 days; p < .01). All other variable tested had no significant impact on survival in univariate analysis, but dogs undergoing surgery and dogs having serous membranes' modification at medical imaging tended to survive longer. Multivariate analysis confirmed that chemotherapy was the sole variable independently associated with survival in our study (odds ratio 5.57-6.12; p < .01).
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Affiliation(s)
- Mathilde Lajoinie
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance
| | - Thomas Chavalle
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance
| | | | - David Sayag
- ONCOnseil—Unité d'expertise en oncologie vétérinaireToulouseFrance
| | - Didier Lanore
- Pôle Santé ChanturgueClermont‐FerrandFrance,AllianceBordeauxFrance
| | - Frédérique Ponce
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance
| | - Gabriel Chamel
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance,ArmoniaVillefontaineFrance
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5
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Moberg HL, Gramer I, Schofield I, Blackwood L, Killick D, Priestnall SL, Guillén A. Clinical presentation, treatment and outcome of canine malignant mesothelioma: A retrospective study of 34 cases. Vet Comp Oncol 2021; 20:304-312. [PMID: 34647420 DOI: 10.1111/vco.12777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/09/2021] [Indexed: 10/20/2022]
Abstract
Canine malignant mesothelioma (CMM) is a rare and aggressive tumour associated with a poor prognosis. Limited information is available regarding effective treatment options and prognostic factors. The purpose of this retrospective case series was to describe the clinical presentation, treatment and survival in a cohort of dogs with this disease and to investigate possible prognostic factors. Thirty-four dogs were included. Tachypnoea and dyspnoea due to pleural effusion were the most common presenting clinical signs. Twenty-two dogs had a subcutaneous access port placed and 25 dogs were treated with intracavitary and/or intravenous chemotherapy. The main protocols used were single-agent 5-FU (n = 14) and carboplatin single-agent or alternated with mitoxantrone (n = 10). The overall response rate (defined as more than 25% reduction in effusion volume) to chemotherapy treatment was 37% after 3-weeks and 24% after 15-weeks. The median survival time (MST) for all dogs was 195 days (95% CI 53-324). MST was 234 days for dogs receiving chemotherapy and 29 days for dogs not receiving chemotherapy. The 1-year survival rate was 22% for all dogs. Treatment with chemotherapy was the only significant prognostic factor associated with survival (p = .001). Further studies are needed to determine the optimal treatment approach for malignant mesothelioma in dogs. Nevertheless, effusion recurrence should be expected and the prognosis for these patients in the long-term is poor.
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Affiliation(s)
- Hanne Larsen Moberg
- Department of Clinical Sciences and Services, Royal Veterinary College, Hertfordshire, UK
| | - Irina Gramer
- Department of Clinical Sciences and Services, Royal Veterinary College, Hertfordshire, UK
| | - Imogen Schofield
- Department of Clinical Sciences and Services, Royal Veterinary College, Hertfordshire, UK
| | - Laura Blackwood
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston, UK
| | - David Killick
- Department of Small Animal Clinical Science, Institute of Infection, Veterinary and Ecological Science, University of Liverpool, Neston, UK
| | - Simon L Priestnall
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hertfordshire, UK
| | - Alexandra Guillén
- Department of Clinical Sciences and Services, Royal Veterinary College, Hertfordshire, UK
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6
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Milne EM, Piviani M, Hodgkiss-Geere HM, Piccinelli C, Cheeseman M, Cazzini P, Ressel L, Marcos RJ, Marrinhas CS, Santos MS, Thomas EK, Drummond D, Martinez Pereira Y. Comparison of effusion cell block and biopsy immunohistochemistry in mesothelial hyperplasia, mesothelioma, and carcinoma in dogs. Vet Clin Pathol 2021; 50:555-567. [PMID: 34590335 DOI: 10.1111/vcp.13002] [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: 10/30/2020] [Revised: 01/08/2021] [Accepted: 02/03/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Determining the cause of effusions is challenging and might require a biopsy. Whether cell blocks from effusions are representative of biopsies requires investigation. A previously developed immunohistochemical panel aids in the differentiation of hyperplastic and neoplastic mesothelium in canine biopsies but has not been investigated in effusions. OBJECTIVES The study aimed to assess cell blocks as an alternative to biopsies and determine whether immunohistochemistry helps distinguish hyperplastic mesothelium, mesothelioma, and carcinoma. METHODS Effusions and biopsies were collected from five dogs with mesothelial hyperplasia (group MH), six with mesothelioma (group M), and five with carcinoma (group C). Immunohistochemistry (IHC) for cytokeratin, vimentin, Wilm's tumor protein 1 (WT1), desmin, glucose transporter 1 (GLUT1), and insulin-like growth factor II mRNA-binding protein 3 (IMP3) was performed. Sections were scored for staining intensity and the percentage of positively stained cells. RESULTS In paired cell blocks and biopsies, vimentin and WT1 staining were positively correlated for intensity and the percentage of positive cells, although not all paired results were identical. The intensity of IMP3 staining in cell blocks was higher in group M than in group C (P = 0.012), and WT1 staining was higher in group MH than in group C (P = 0.020). For biopsies, the intensity of WT1 staining was higher in group MH than in group C (P = 0.031). In group C, WT1 was negative in all cell blocks and biopsies, and desmin was negative in four of five cases. CONCLUSIONS IHC results for the cell blocks and biopsies were comparable for potentially useful markers, such as WT1, which helped discriminate between groups. IHC provided additional information, although results were not always definitive. Further studies on a larger population are required.
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Affiliation(s)
- Elspeth M Milne
- Department of Veterinary Pathology, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Martina Piviani
- Department of Small Animal Clinical Sciences, Institute of Veterinary Science, University of Liverpool, Neston, UK
| | - Hannah M Hodgkiss-Geere
- Department of Small Animal Clinical Sciences, Institute of Veterinary Science, University of Liverpool, Neston, UK
| | - Chiara Piccinelli
- Department of Veterinary Pathology, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Michael Cheeseman
- Department of Veterinary Pathology, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Paola Cazzini
- Department of Veterinary Pathology, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Lorenzo Ressel
- Department of Veterinary Pathology and Public Health, Institute of Veterinary Science, University of Liverpool, Neston, UK
| | - Ricardo J Marcos
- Cytology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Carla S Marrinhas
- Cytology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Marta S Santos
- Cytology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Emily K Thomas
- Hospital for Small Animals, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Dawn Drummond
- Department of Veterinary Pathology, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
| | - Yolanda Martinez Pereira
- Hospital for Small Animals, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK
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7
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Levi M, Parenti F, Muscatello LV, Battaia S, Santilli R, Perego M, Montinaro V, Massari F, Sarli G, Brunetti B. Pathological Findings of Canine Idiopathic Pericarditis and Pericardial Mesotheliomas: Correlation with Clinical and Survival Data. Vet Sci 2021; 8:vetsci8080162. [PMID: 34437484 PMCID: PMC8402876 DOI: 10.3390/vetsci8080162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/31/2021] [Accepted: 08/05/2021] [Indexed: 12/11/2022] Open
Abstract
Idiopathic pericarditis (IP) and pericardial mesothelioma (PM) are causes of pericardial effusion in dogs. Pericardiectomy can be a definitive treatment in the case of idiopathic pericardial effusion or a short-term intervention for mesothelioma. The aim of the present study was to investigate which histopathologic parameters are correlated with clinical outcomes in a cohort of dogs that underwent pericardiectomy. The histopathological findings of 22 IPs and 5 PMs were compared with clinical and survival data and the immunohistochemical characterization of immune cells (CD3, CD79α, Iba1). In IP, the mesothelium was lost in 20 cases, reactive in 9, atypical in 3, and mesothelial papillary hyperplasia (MPH) was observed in 4 cases. Numerous macrophages were found in both IPs and PMs especially at the superficial layer of the pericardium. T lymphocytes were observed in mild to moderate numbers and were more numerous than B lymphocytes in both IPs and PMs. MPH was correlated with the quantity of lymphoplasmacytic infiltrate in the superficial layer, inversely related to the thickness of the pericardium, and associated with a longer overall survival. Pericardial fibrosis was present in 19 out of 22 IPs and in all mesotheliomas and was correlated with increased time from initial presentation and pericardiectomy and lymphoplasmacytic infiltrate in the deep zone. Pericardial thickness was correlated with the amount of lymphoplasmacytic and macrophagic infiltrate in the deep zone. Mesothelioma was associated with an increased number of pericardiocentesis procedures before pericardiectomy and with the presence of macrophages in the superficial pericardial layer, edema, fibrin, and hemorrhage. Disease-free interval and overall survival were significantly shorter in patients with mesothelioma compared with IP.
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Affiliation(s)
- Michela Levi
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (F.P.); (G.S.); (B.B.)
| | - Federico Parenti
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (F.P.); (G.S.); (B.B.)
| | - Luisa Vera Muscatello
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (F.P.); (G.S.); (B.B.)
- Correspondence:
| | - Stefano Battaia
- Ospedale Veterinario I Portoni Rossi, Via Roma 57, Zola Predosa, 40069 Bologna, Italy; (S.B.); (M.P.); (V.M.); (F.M.)
- Clinica Veterinaria Malpensa, Viale Marconi 27, Samarate, 21017 Varese, Italy;
| | - Roberto Santilli
- Clinica Veterinaria Malpensa, Viale Marconi 27, Samarate, 21017 Varese, Italy;
- Department of Clinical Sciences, Cornell University, 930 Campus Road, Ithaca, NY 14853, USA
| | - Manuela Perego
- Ospedale Veterinario I Portoni Rossi, Via Roma 57, Zola Predosa, 40069 Bologna, Italy; (S.B.); (M.P.); (V.M.); (F.M.)
- Clinica Veterinaria Malpensa, Viale Marconi 27, Samarate, 21017 Varese, Italy;
| | - Vincenzo Montinaro
- Ospedale Veterinario I Portoni Rossi, Via Roma 57, Zola Predosa, 40069 Bologna, Italy; (S.B.); (M.P.); (V.M.); (F.M.)
| | - Federico Massari
- Ospedale Veterinario I Portoni Rossi, Via Roma 57, Zola Predosa, 40069 Bologna, Italy; (S.B.); (M.P.); (V.M.); (F.M.)
- DOCVET, Clinica Veterinaria Nervianese, Via Lampugnani 3, 20014 Nerviano, Italy
| | - Giuseppe Sarli
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (F.P.); (G.S.); (B.B.)
| | - Barbara Brunetti
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, Ozzano dell’Emilia, 40064 Bologna, Italy; (M.L.); (F.P.); (G.S.); (B.B.)
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8
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Plesker R, Köhler K, von Gerlach S, Boller K, Vogt M, Feder IS. Reactive mesothelial hyperplasia mimicking mesothelioma in an African green monkey ( Chlorocebus aethiops). Primate Biol 2020; 7:5-12. [PMID: 32760782 PMCID: PMC7399384 DOI: 10.5194/pb-7-5-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 05/12/2020] [Indexed: 11/22/2022] Open
Abstract
A spontaneous reactive mesothelial hyperplasia occurred in a
female, 15.7-year-old African green monkey (grivet; Chlorocebus aethiops). At necropsy, massive
effusions were found in the abdomen, the thorax, and the pericardium.
Additionally, multiple small, beige-gray nodules were detected on the
serosal surfaces of the abdominal organs. Histopathologically, the
mesothelial cells resembled the epithelioid subtype of a mesothelioma, but
no infiltrative or invasive growth could be demonstrated. The mesothelial
cells on the thoracis, liver, and intestinal serosa were accompanied by
chronic serositis. Mesothelial cells expressed cytokeratin, vimentin,
calretinin, desmin, Wilms Tumor 1 (WT-1) protein, and epithelial membrane
antigen (EMA). Cells were negative for carcinoembryonic antigen (CEA),
cluster of differentiation 15 (CD15), and podoplanin. Ultrastructurally,
cells revealed a moderate amount of microvilli of medium length, perinuclear
tonofilament bundles, and long desmosomes. In fluorescence in situ
hybridization (FISH) for the detection of characteristic gene loss (p16;
CDKN2A), NF2, and MTAP, no deletions were detected. No asbestos fibers and no
presence of Simian virus 40 antigen (SV40) could be demonstrated.
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Affiliation(s)
- Roland Plesker
- Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225 Langen, Germany
| | - Kernt Köhler
- Institut für Veterinär-Pathologie, Justus-Liebig-Universität Gießen, Gießen, Germany
| | - Susanne von Gerlach
- ÜGP MVZ, Institut für Pathologie, Zytologie und Molekularpathologie GbR, Wettenberg, Germany
| | - Klaus Boller
- Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225 Langen, Germany
| | - Markus Vogt
- Institut für Pathologie, Ruhr-Universität Bochum, Bochum, Germany
| | - Inke S Feder
- Institut für Pathologie, Ruhr-Universität Bochum, Bochum, Germany
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9
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Marcos R, Marrinhas C, Malhão F, Canadas A, Santos M, Caniatti M. The cell tube block technique and an immunohistochemistry panel including Wilms tumor 1 to assist in diagnosing cavitary effusions in dogs and cats. Vet Clin Pathol 2019; 48:50-60. [PMID: 30865320 DOI: 10.1111/vcp.12709] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Cell blocks and immunohistochemistry (IHC) are increasingly recognized as being complementary tools for cytologic diagnostics, especially for neoplastic diseases. OBJECTIVES The study aimed to evaluate the utility of cell tube block (CTB) IHC for refining the diagnosis of effusions in dogs and cats. METHODS Cavitary effusions (n = 25) from dogs and cats classified by cytology as reactive, neoplastic, borderline (suspicious of neoplasia), and chylous were studied. CTB sections were stained with H&E, and immunostained with PAX-5, CD3, pancytokeratin (CK), vimentin, and Wilms tumor 1 protein (WT1) antibodies, according to the cytologic diagnoses. A histologic case series of confirmed normal, reactive, and neoplastic mesothelium and several different carcinomas were included to test the utility of WT1 as a marker of mesothelial cells. RESULTS CTBs had a layered appearance with reduced background staining. CD3 and PAX5 immunolabeling allowed immunophenotype assessment in all of the lymphoma cases. In carcinomatous effusions, neoplastic cells were CK-positive, WT1-negative, and vimentin-negative (except for two cases). Wilms tumor 1 protein was positive in the nuclei of normal, reactive, and neoplastic mesothelial cells, and ovarian carcinomatous cells. Other carcinomas and lymphomas were negative. CONCLUSIONS CTBs are valuable tools to assist in making a diagnosis of cavitary effusions in dogs and cats, and WT1 is a promising marker to differentiate mesothelial from carcinomatous cells.
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Affiliation(s)
- Ricardo Marcos
- Institute of Biomedical Sciences Abel Salazar, University of Porto, ICBAS - UP, Porto, Portugal
| | - Carla Marrinhas
- Institute of Biomedical Sciences Abel Salazar, University of Porto, ICBAS - UP, Porto, Portugal.,Baixo Vouga Veterinary Hospital, Onevet, Águeda, Portugal
| | - Fernanda Malhão
- Institute of Biomedical Sciences Abel Salazar, University of Porto, ICBAS - UP, Porto, Portugal
| | - Ana Canadas
- Institute of Biomedical Sciences Abel Salazar, University of Porto, ICBAS - UP, Porto, Portugal
| | - Marta Santos
- Institute of Biomedical Sciences Abel Salazar, University of Porto, ICBAS - UP, Porto, Portugal
| | - Mario Caniatti
- DIMEVET Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy
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