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Sini F, Melega M, Cannizzo FT, Miniscalco B, Valenti P, Riondato F. Flow cytometry of non-hematopoietic cells in canine effusions. Front Vet Sci 2024; 11:1414271. [PMID: 39380773 PMCID: PMC11458718 DOI: 10.3389/fvets.2024.1414271] [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: 04/08/2024] [Accepted: 08/22/2024] [Indexed: 10/10/2024] Open
Abstract
The identification of non-hematopoietic cells in effusions is a diagnostic challenge in cytology. Biopsies from mesothelium or primary lesions are infrequently performed in clinical settings and immunochemistry on smears or immunohistochemistry on cell blocks are the most common ancillary test to refine the cytological diagnosis. Cavitary effusions are an ideal matrix for flow cytometry and the availability of a cytometric panel to describe non-hematopoietic cells would represent a useful tool. Here we present the results of the flow cytometric and immunohistochemical determination of cytokeratin (CK), vimentin (VIM) and desmin (DES) in 36 canine effusions. The concordance between the two methods was perfect for CK (100%), substantial for VIM (77.8%), and almost perfect for DES (97.2%). The panel was interpreted to define the epithelial (CK+VIM-DES-), mesothelial (CK+VIM+DES+), or mesenchymal (CK-VIM+DES-) origin of the cells. Unexpected profiles were considered doubtful and observed patterns were individually discussed. The concordance of the panel interpretation between two methods was 75%. The evaluation of discordant and doubtful cases suggests a lower sensitivity of flow cytometry in detecting VIM expression and revealed a high frequency of VIM+ epithelial cells, variable expression of VIM in mesothelial cells, and an important role of DES in excluding an epithelial origin when positive. Multicentric studies based on histopathological diagnoses are necessary to confirm these findings and evaluate the diagnostic utility of the panel to refine cytological diagnosis. Our results show that flow cytometry can be a timesaving alternative to IHC on cell blocks in clinical settings to detect CK, VIM and DES expression. The interpretation of the panel is similar in most cases; however, occasional discordant results, particularly for VIM, may occur.
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Affiliation(s)
- Federica Sini
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, TO, Italy
| | - Maverick Melega
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, TO, Italy
| | - Francesca Tiziana Cannizzo
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, TO, Italy
| | - Barbara Miniscalco
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, TO, Italy
| | - Paola Valenti
- Clinica Veterinaria Malpensa AniCura, Samarate, VA, Italy
| | - Fulvio Riondato
- Department of Veterinary Sciences, School of Agriculture and Veterinary Medicine, University of Turin, Grugliasco, TO, Italy
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2
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Usefulness and Limitations of Cryopreservation for Immunocytochemical Staining of Canine Cytological Specimens for Detection of Cytokeratin and Vimentin. Vet Sci 2023; 10:vetsci10020153. [PMID: 36851457 PMCID: PMC9963433 DOI: 10.3390/vetsci10020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/10/2023] [Accepted: 02/11/2023] [Indexed: 02/17/2023] Open
Abstract
Immunocytochemistry is an advanced diagnostic tool for identifying the origin of tumor cells. This study aimed to highlight the usefulness of cryopreserved, air-dried cytological samples in detecting cytokeratin and vimentin. Air-dried cytological smear samples were prepared from a total of 39 resected canine tumors and stored in a medical freezer without fixation. The duration of cryopreservation ranged from 2 to 56 months. The same tumors were processed for routine histopathological examination. Based on the morphological diagnosis, cryopreserved FNA smears from epithelial tumors were stained by enzymatic immunocytochemistry (ICC) for cytokeratin; those from mesenchymal and melanocytic tumors were stained by ICC for vimentin. To ascertain the positivity of tumor cells to the selected markers, tissue paraffin-embedded sections were also stained by immunohistochemistry (IHC) for the same markers. Immunoreactivity for cytokeratin was detected in cryopreserved cytological smears for a maximum of 46 months. Immunoreactivity for vimentin was clearly detected for 33 months. Smears stored at room temperature for 1 week did not show any signals under immunocytochemical examination. Thus, immunocytochemistry for cytokeratin and vimentin can be safely applied to air-dried smears cryopreserved in a freezer for at least 33 months.
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Marrinhas C, Malhão F, Lopes C, Sampaio F, Moreira R, Caniatti M, Santos M, Marcos R. Doing more with less: multiple uses of a single slide in veterinary cytology. A practical approach. Vet Res Commun 2022; 46:641-654. [PMID: 35717511 PMCID: PMC9206527 DOI: 10.1007/s11259-022-09953-0] [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: 01/21/2022] [Accepted: 06/07/2022] [Indexed: 11/29/2022]
Abstract
Veterinary cytology faced a remarkable evolution in the last 15 years, in part due to increase recognition of the advantages of the cytology by veterinary clinicians. Simultaneously, there has been a growing awareness by the owners about the importance of a complete diagnostic workup aimed at defining a proper treatment protocol. With the extended use of cytology, challenging diagnostic cases are more frequent, and more clinically useful answers are requested. In this scenario, the use of cytology specimens to perform ancillary techniques is a valid approach. Rather than being simply archived, cytology slides can be a valuable source and a good platform to carry out cytochemistry, immunocytochemistry, and molecular techniques. Therefore, several diagnostic techniques can be applied in tiny samples, thus following the "doing more with less" principle. The aim of this approach is to refine the cytologic diagnosis and provide additional prognostic and therapeutic information. Herein, we detailed this principle in veterinary cytology and reviewed the use of cytology specimens for ancillary techniques as a single procedure, i.e., using the whole slide, or multiple procedures, i.e., multiple procedures applied in the same slide.
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Affiliation(s)
- Carla Marrinhas
- Hospital Do Baixo Vouga, OneVet Group, Águeda, Portugal.,Cytology and Hematology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, ICBAS - School of Medicine and Biomedical Sciences, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Fernanda Malhão
- Cytology and Hematology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, ICBAS - School of Medicine and Biomedical Sciences, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Célia Lopes
- Cytology and Hematology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, ICBAS - School of Medicine and Biomedical Sciences, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Filipe Sampaio
- Cytology and Hematology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, ICBAS - School of Medicine and Biomedical Sciences, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.,Laboratório INNO, Braga, Portugal
| | - Raquel Moreira
- Cytology and Hematology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, ICBAS - School of Medicine and Biomedical Sciences, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.,UPVET, ICBAS - School of Medicine and Biomedical Sciences, Porto, Portugal
| | - Mario Caniatti
- Dipartimento Di Medicina Veterinaria E Scienze Animali (DIVAS), Università Degli Studi Di Milano, Milano, Italy
| | - Marta Santos
- Cytology and Hematology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, ICBAS - School of Medicine and Biomedical Sciences, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Ricardo Marcos
- Cytology and Hematology Diagnostic Services, Laboratory of Histology and Embryology, Institute of Biomedical Sciences Abel Salazar, ICBAS - School of Medicine and Biomedical Sciences, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
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FURUSAWA Y, TAKAHASHI M, SHIMA-SAWA M, HATAI H, MIYOSHI N, YAMATO O, YABUKI A. Immunocytochemical evaluation of epithelial-mesenchymal transition in epithelial tumors of dogs and cats. J Vet Med Sci 2021; 83:1363-1368. [PMID: 34234057 PMCID: PMC8498836 DOI: 10.1292/jvms.21-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 06/21/2021] [Indexed: 11/22/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) plays a crucial role in metastasis of epithelial tumors; however, it is challenging to detect EMT by cytology. In the present study, EMT was visualized by fluorescence-immunocytochemistry (FICC). Air-dried smears from epithelial tumors of dogs (n=22) and cats (n=9) were stained using mouse monoclonal anti-E-cadherin and rabbit monoclonal anti-vimentin antibodies. Enzymatic immunohistochemistry (IHC) revealed that 51.6% (8/22 in dogs, 8/9 in cats) of the cases showed EMT. In dogs, FICC could detect EMT in 62.5% (5/8) of those cases. In cats, FICC could detect EMT in 100% (8/8) of the cases. In conclusion, the present FICC method could successfully detect EMT using conventional air-dried cytology smear slides.
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Affiliation(s)
- Yu FURUSAWA
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Masashi TAKAHASHI
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Mariko SHIMA-SAWA
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Hitoshi HATAI
- Laboratory of Veterinary Histopathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Noriaki MIYOSHI
- Laboratory of Veterinary Histopathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Osamu YAMATO
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Akira YABUKI
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
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Matsumoto F, Shima-Sawa M, Furusawa Y, Yamato O, Yabuki A. A rapid multiple immunofluorescence method for the simultaneous detection of CD20 and CD3 in canine and feline cytological samples. J Vet Med Sci 2021; 83:832-836. [PMID: 33814519 PMCID: PMC8182324 DOI: 10.1292/jvms.20-0597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
CD20 and CD3 are considered reliable markers for B and T cells, respectively. This study aimed to develop a rapid multiple immunofluorescence (RMIF) method for the detection of CD20 and CD3 on a single cytology slide. Air-dried smears were prepared using samples collected from dogs (n=26) and cats (n=6). Immunosignal detection using the newly developed method required 60 min. Clear immunosignals for CD20 and CD3 were detected in 24 of 26 samples in dogs and in all 6 cats. As the RMIF (CD20/CD3) method can detect markers of both B and T cells simultaneously on a single cytology smear, it would be an efficient tool for the immunophenotyping of canine and feline lymphoma samples.
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Affiliation(s)
- Fumi Matsumoto
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Mariko Shima-Sawa
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Yu Furusawa
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Osamu Yamato
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Akira Yabuki
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.,Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
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6
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Furusawa Y, Takahashi M, Shima-Sawa M, Yamato O, Yabuki A. Argyrophilic nucleolar organizer regions staining for cytology smears in dogs and cats. J Vet Med Sci 2020; 82:1267-1270. [PMID: 32641597 PMCID: PMC7538313 DOI: 10.1292/jvms.20-0271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The argyrophilic nucleolar organizer regions (AgNORs) are cellular proliferation markers, crucial for predicting the clinical course and aggressiveness of tumors. The purpose of this study was to establish an easy and practical AgNOR staining method in the cytology of dogs and cats. Air-dried cytological slides were prepared from dogs (n=14) and cats (n=12). Acetone, formalin, ethanol and methanol were tested as fixatives for AgNOR staining. Subsequently, various methods of Romanowsky-based counterstains were tested before and after AgNOR staining. Clear and strong AgNOR spots were observed with all fixatives, and post-May-Grünwald staining was the best counterstaining method. The established method showed clear AgNOR spots even in the long-term storage samples and Romanowsky-stained ones.
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Affiliation(s)
- Yu Furusawa
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Masashi Takahashi
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Mariko Shima-Sawa
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Osamu Yamato
- Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Akira Yabuki
- Kagoshima University Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.,Laboratory of Veterinary Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
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7
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Schmid F, Brodesser D, Reifinger M, Forte S, Semp P, Eberspächer-Schweda MC, Wolschek M, Brandt S, Kleiter M, Pratscher B. Canine oral primary melanoma cells exhibit shift to mesenchymal phenotype and phagocytic behaviour. Vet Comp Oncol 2019; 17:211-220. [PMID: 30719836 DOI: 10.1111/vco.12464] [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: 08/13/2018] [Revised: 10/29/2018] [Accepted: 10/30/2018] [Indexed: 12/13/2022]
Abstract
Canine oral malignant melanoma (COMM) is a potentially lethal cancer disease. We established primary cell lines from mostly amelanotic primary COMM and metastases and assessed lesions and derived cells for Melan A, PNL2 and CD146 expression. Then, migration and invasion of CD146-enriched vs -depleted COMM cells were analysed. Epithelial-to-mesenchymal transition (EMT) was addressed by Vimentin-staining and MMP2/MMP9 zymography. Phagocytic behaviour was analysed by histopathological examination and phagocytosis assay. While Melan A- and PNL2-staining yielded inconsistent data, 100% of COMM sections and primary cells showed CD146 expression, suggesting that this protein may serve as a prognostic marker. An overall correlation between CD146-expression and migration/invasion was not observed. All primary cell lines consistently expressed Vimentin and secreted biologically active MMP2, indicating that they had undergone EMT. Importantly, COMM sections exhibited cell-in-cell structures, and all primary cell lines exhibited phagocytic activity, supporting the concept that cell cannibalism may have a role in COMM progression.
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Affiliation(s)
- Franziska Schmid
- Research Group Oncology (RGO), Equine Surgery, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria.,Radiooncology and Nuclear Medicine Platform, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria
| | - Daniela Brodesser
- Research Group Oncology (RGO), Equine Surgery, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria.,Reproductive Biotechnology, Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, Austria.,Institute of Biotechnology in Animal Production, Department for Agrobiotechnology, IFA Tulln, University of Natural Resources and Life Sciences, Tulln, Austria
| | - Martin Reifinger
- Department for Pathobiology, Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine, Vienna, Austria
| | - Sara Forte
- Research Group Oncology (RGO), Equine Surgery, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria
| | - Pia Semp
- Research Group Oncology (RGO), Equine Surgery, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria.,Radiooncology and Nuclear Medicine Platform, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria
| | | | - Markus Wolschek
- Research Group Oncology (RGO), Equine Surgery, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria.,BlueSky Vaccines GmbH, Vienna, Austria
| | - Sabine Brandt
- Research Group Oncology (RGO), Equine Surgery, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria
| | - Miriam Kleiter
- Radiooncology and Nuclear Medicine Platform, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria
| | - Barbara Pratscher
- Research Group Oncology (RGO), Equine Surgery, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria.,Internal Medicine Small Animals, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria.,Equine Internal Medicine, Department for Small Animals and Horses, University of Veterinary Medicine, Vienna, Austria
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