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Yoshimura A, Fukushima R, Michishita M, Omura M, Makimura K, Azakami D. Multiple intra-abdominal fungal granulomas caused by Scedosporium apiospermum effectively treated with voriconazole in a Golden Retriever. Med Mycol Case Rep 2023; 42:100611. [PMID: 37808222 PMCID: PMC10551546 DOI: 10.1016/j.mmcr.2023.100611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/10/2023] Open
Abstract
Scedosporium apiospermum is a saprophytic filamentous fungus that is pathogenic to dogs. This report describes a case of S. apiospermum infection that caused multiple large peritoneal fungal granulomas in a dog with a history of jejunojejunostomy. The lesions were firmly attached to multiple organs and could not be surgically removed. In such cases, no precedent for the response to the treatment of this disease exists, and all affected dogs have died. This is the first report of an effective medical treatment for multiple intra-abdominal fungal granulomas using voriconazole.
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Affiliation(s)
- Aritada Yoshimura
- Animal Medical Center, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Ryuji Fukushima
- Animal Medical Center, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Miki Omura
- MycoLabo Inc, #101, 6-6-5-4 Shimorenjaku, Mitaka, Tokyo, 181-0013, Japan
- Institute of Medical Mycology, Teikyo University, 359 Otsuka, Hachioji, Tokyo, 192-0395, Japan
| | - Koichi Makimura
- Institute of Medical Mycology, Teikyo University, 359 Otsuka, Hachioji, Tokyo, 192-0395, Japan
| | - Daigo Azakami
- Animal Medical Center, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
- Laboratory of Veterinary Clinical Oncology, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
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2
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Shiota Sato Y, Elbadawy M, Suzuki K, Tsunedomi R, Nagano H, Ishihara Y, Yamamoto H, Azakami D, Uchide T, Fukushima R, Tanaka R, Yoshida T, Mori T, Abugomaa A, Kaneda M, Yamawaki H, Shinohara Y, Aboubakr M, El-Asrag ME, Usui T, Sasaki K. Derivation of a new model of lung adenocarcinoma using canine lung cancer organoids for translational research in pulmonary medicine. Biomed Pharmacother 2023; 165:115079. [PMID: 37413906 DOI: 10.1016/j.biopha.2023.115079] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/08/2023] Open
Abstract
Canine primary lung cancer (cPLC) is a rare malignant tumor in dogs, and exhibits poor prognosis. Effective therapeutic drugs against cPLC have not been established yet. Also, cPLC resembles human lung cancer in histopathological characteristics and gene expression profiles and thus could be an important research model for this disease. Three-dimensional organoid culture is known to recapitulate the tissue dynamics in vivo. We, therefore, tried to generate cPLC organoids (cPLCO) for analyzing the profiles of cPLC. After samples from cPLC and the corresponding normal lung tissue were collected, cPLCO were successfully generated, which recapitulated the tissue architecture of cPLC, expressed lung adenocarcinoma marker (TTF1), and exhibited tumorigenesis in vivo. The sensitivity of cPLCO to anti-cancer drugs was different among strains. RNA-sequencing analysis showed significantly upregulated 11 genes in cPLCO compared with canine normal lung organoids (cNLO). Moreover, cPLCO were enriched with the MEK-signaling pathway compared with cNLO. The MEK inhibitor, trametinib decreased the viability of several strains of cPLCO and inhibited the growth of cPLC xenografts. Collectively, our established cPLCO model might be a useful tool for identifying novel biomarkers for cPLC and a new research model for dog and human lung cancer.
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Affiliation(s)
- Yomogi Shiota 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
| | - Ryuji Fukushima
- Animal Medical Emergency Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Ryo Tanaka
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Tomohiko Yoshida
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Takuya Mori
- Kinki Animal Medical Study Center, 3-15-27, Hishie, Osaka 578-0984, 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
| | - Mohamed Aboubakr
- 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
| | - Mohamed E El-Asrag
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - 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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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Yoshimura A, Azakami D, Kishimoto M, Ohmori T, Hirao D, Morita S, Hasegawa S, Morita T, Fukushima R. A case of a dog with paragonimiasis after consumption of raw deer meat. J Vet Med Sci 2023; 85:541-545. [PMID: 36948633 DOI: 10.1292/jvms.22-0443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023] Open
Abstract
A 6-year-old castrated male Cavalier King Charles Spaniel was referred to the Animal Medical Center, Tokyo University of Agriculture and Technology, for examination and treatment of recurrent pneumothorax. Chest radiography and computed tomography showed multiple cavitary lesions in the caudal right posterior lobe. These lesions were surgically excised via thoracotomy. Subsequent histopathological examination revealed paragonimiasis. In the postoperative review, we found that the owner had fed raw deer meat to the dog four months earlier. Deer meat has attracted attention as a source of Paragonimus in humans. To our knowledge, this is the first report of Paragonimus infection in a dog due to deer meat consumption.
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Affiliation(s)
- Aritada Yoshimura
- Animal Medical Center, Tokyo University of Agriculture and Technology
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Tokyo University of Agriculture and Technology
| | - Miori Kishimoto
- Laboratory of Veterinary Imaging, Tokyo University of Agriculture and Technology
| | - Takahiro Ohmori
- Animal Medical Center, Tokyo University of Agriculture and Technology
| | - Daiki Hirao
- Animal Medical Center, Tokyo University of Agriculture and Technology
| | - Shohei Morita
- Animal Medical Center, Tokyo University of Agriculture and Technology
| | | | - Tatsushi Morita
- Laboratory of Parasitology, Nippon Veterinary and Life Science University
| | - Ryuji Fukushima
- Animal Medical Center, Tokyo University of Agriculture and Technology
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Michishita M, Ochiai K, Nakahira R, Azakami D, Machida Y, Nagashima T, Nakagawa T, Ishiwata T. mTOR pathway as a potential therapeutic target for cancer stem cells in canine mammary carcinoma. Front Oncol 2023; 13:1100602. [PMID: 36816969 PMCID: PMC9931192 DOI: 10.3389/fonc.2023.1100602] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
Mammary adenocarcinoma, the most common cancer in female dogs, often exhibits the lymph node and lung metastases and has a higher mortality rate. However, mammary adenocarcinoma has no established treatment, except early surgical excision. Canine mammary carcinoma has many common features with human mammary carcinoma, including clinical characteristics, heterogeneity, and genetic aberrations, making it an excellent spontaneous tumor model for human breast cancer. Diverse cancers comprised heterogeneous cell populations originating from cancer stem cells (CSCs) with self-renewal ability. Therefore, in addition to conventional therapy, therapeutic strategies targeting CSCs are essential for cancer eradication. The present study aimed to extract inhibitors of canine mammary CSCs that suppress their self-renewal ability. Sphere-formation assay, which evaluates self-renewal ability, was performed for the canine mammary cancer cell lines CTBp and CNMp. The spheres formed in this assay were used in inhibitor library screening, which identified various signaling pathways such as proteosome, stress inducer, and mammalian target of rapamycin (mTOR). The present study focused on the mTOR signaling pathway. Western blotting showed higher levels of phosphorylated mTOR in sphere-forming CTBp and CNMp cells than in adherent cells. Drug sensitivity examination using the mTOR inhibitors everolimus and temsirolimus revealed dose-dependent reductions in viability among both sphere-forming cells and adherent cells. Expression of phosphorylated mTOR in adherent and sphere-forming cells decreased by everolimus and temsirolimus treatment. In mice transplanted with CTBp-derived spheres, everolimus treatment significantly decreased tumor volume compared to control. These results reveal that the mTOR signaling pathway may be a potential to be a therapeutic target in both cancer cells and CSCs. Novel therapeutic strategies for canine mammary carcinoma are expected to benefit to human breast carcinoma as well.
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Affiliation(s)
- Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan,Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan,*Correspondence: Masaki Michishita,
| | - Kazuhiko Ochiai
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan,Department of Veterinary Hygiene, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Rei Nakahira
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Yukino Machida
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Tomokazu Nagashima
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo, Japan
| | - Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Oyamada T, Nabeta R, Azakami D. A canine case of splenic hemangiosarcoma complicated with infectious splenic abscess. Vet Res Forum 2022; 13:451-454. [PMID: 36320301 PMCID: PMC9548233 DOI: 10.30466/vrf.2021.526184.3148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022]
Abstract
A 12-year-old spayed female Yorkshire Terrier presented with anorexia, and an intra-abdominal mass was examined at the Animal Medical Center, Tokyo University of Agriculture and Technology, Tokyo, Japan. Abdominal ultrasonography revealed that the mass originated from the spleen. Total splenectomy was performed the following day, where evidence of past rupture of the splenic mass and a small amount of purulent ascites were found. No gastrointestinal perforation or abscess formation in other tissues was noted during the surgery. Intra-operative cytological examination of the ascites revealed a large number of degenerated neutrophils and macrophages phagocytosing cocci. The splenic mass was histopathologically diagnosed as a splenic abscess, concurrent with a splenic hemangiosarcoma. Bacterial culture examination of the ascites identified Staphylococcus schleiferi. Although surgical management had been successful, the dog eventually developed clinical signs suggestive of intra-abdominal hemorrhage attributable to hemangiosarcoma approximately five months after surgery. This clinical report describes that splenic hemangiosarcoma might have created a milieu favorable for the development of splenic abscess.
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Affiliation(s)
- Tomohiro Oyamada
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Rina Nabeta
- Laboratory of Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo, Japan; ,Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatchewan, Canada
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan.,Correspondence Daigo Azakami. DVM, PhD Laboratory of Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo, Japan . E-mail:
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Elbadawy M, Fujisaka K, Yamamoto H, Tsunedomi R, Nagano H, Ayame H, Ishihara Y, Mori T, Azakami D, Uchide T, Fukushima R, Abugomaa A, Kaneda M, Yamawaki H, Shinohara Y, Omatsu T, Mizutani T, Usui T, Sasaki K. Establishment of an experimental model of normal dog bladder organoid using a three-dimensional culture method. Biomed Pharmacother 2022; 151:113105. [PMID: 35605292 DOI: 10.1016/j.biopha.2022.113105] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 04/30/2022] [Accepted: 05/10/2022] [Indexed: 11/30/2022] Open
Abstract
Dog bladder cancer (BC) is mostly muscle-invasive (MI) with poor prognosis, and its pathogenesis is close to human MIBC. Three-dimensional (3D) organoid culture ensures novel knowledge on cancer diseases including BC. Recently, we have established dog BC organoids (BCO) using their urine samples. BCO recapitulated the epithelial structures, characteristics, and drug sensitivity of BC-diseased dogs. However, organoids from dog normal bladder epithelium are not established yet. Therefore, the present study aimed to establish dog normal bladder organoids (NBO) for further understanding the pathogenesis of dog BC and human MIBC. The established NBO underwent various analyzes including cell marker expressions, histopathological structures, cancer-related gene expression patterns, and drug sensitivity. NBO could be produced non-invasively with a continuous culturing and recapitulated the structures and characteristics of the dog's normal bladder mucosal tissues. Different drug sensitivities were observed in each NBO. The analysis of RNA sequencing revealed that several novel genes were changed in NBO compared with BCO. NBO showed a higher expression of p53 and E-cadherin, but a lower expression of MDM2 and Twist1 compared with BCO. These results suggest that NBO could be a promising experimental 3D model for studying the developmental mechanisms of dog BC and human MIBC.
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Affiliation(s)
- 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.
| | - Kodai Fujisaka
- 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
| | - 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
| | - Hiromi Ayame
- 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
| | - 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
| | - Takashi Mori
- Laboratory of Veterinary Clinical Oncology, Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, Gifu, Gifu 501-1193, 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 Surgery, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Ryuji Fukushima
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, 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
| | - Tsutomu Omatsu
- Center for Infectious Diseases of Epidemiology and Prevention Research, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Tetsuya Mizutani
- Center for Infectious Diseases of Epidemiology and Prevention Research, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, 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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8
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Maeda M, Ochiai K, Michishita M, Morimatsu M, Sakai H, Kinoshita N, Sakaue M, Onozawa E, Azakami D, Yamamoto M, Ishioka K, Sadahira T, Watanabe M, Tanaka Y. In vitro anticancer effects of alpelisib against PIK3CA‑mutated canine hemangiosarcoma cell lines. Oncol Rep 2022; 47:84. [PMID: 35234262 PMCID: PMC8908334 DOI: 10.3892/or.2022.8295] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 02/09/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Marika Maeda
- Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
| | - Kazuhiko Ochiai
- Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
| | - Masaki Michishita
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
| | - Masami Morimatsu
- Laboratory of Laboratory Animal Science and Medicine, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060‑0818, Japan
| | - Hiroki Sakai
- Laboratory of Veterinary Pathology, Gifu University, Gifu 501‑1193, Japan
| | - Nayuta Kinoshita
- Laboratory of Laboratory Animal Science and Medicine, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060‑0818, Japan
| | - Motoharu Sakaue
- Laboratory of Anatomy II, Department of Veterinary Medicine, Azabu University, Sagamihara-shi, Kanagawa 252‑5201, Japan
| | - Eri Onozawa
- School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
| | - Daigo Azakami
- Laboratory of Clinical Oncology, Tokyo University of Agriculture and Technology, Tokyo 183‑8538, Japan
| | - Masami Yamamoto
- Division of Physiological Pathology, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
| | - Katsumi Ishioka
- School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
| | - Takuya Sadahira
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700‑0914, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700‑0914, Japan
| | - Yoshikazu Tanaka
- Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180‑8602, Japan
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9
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Ishikawa K, Nagashima T, Machida Y, Yasuda A, Yoshida K, Fujita M, Ochiai K, Azakami D, Michishita M. Primary pulmonary diffuse large B-cell lymphoma associated with feline leukaemia virus infection in a young cat. JFMS Open Rep 2022; 8:20551169221074240. [PMID: 35173973 PMCID: PMC8841923 DOI: 10.1177/20551169221074240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Case summary A 4-year-old castrated male domestic shorthair cat with a continuous cough was brought to a private veterinary clinic for detailed examination. Radiography of the thoracic cavity revealed a severe radiopaque region in the caudal lobe of the right lung. At 108 days after the initial visit, CT showed a mass of 27 × 23 × 18 mm in the caudal lobe of the right lung. At that time, no abnormalities in other organs except for the lung were detected on CT and peripheral blood and blood biochemistry tests. The mass in the caudal lobe of the right lung was resected by lobectomy; it had a white surface and was firm. Histopathologically, the mass was non-encapsulated, showing an unclear boundary with surrounding tissues. The mass comprised large, round or polygonal neoplastic cells arranged in a diffuse pattern. Immunohistochemically, neoplastic cells were diffusely positive for CD20, feline leukaemia virus (FeLV) p27 and FeLV glycoprotein 70 but negative for CD3, CD204 and E-cadherin. Based on these findings, diffuse large B-cell lymphoma associated with FeLV infection was diagnosed. Although the cat showed no clinical signs of gastrointestinal or respiratory injury, a routine ultrasonography revealed thickening in the jejunum wall 196 days after lobectomy, and subsequent fine-needle aspiration examination confirmed high-grade lymphoma. Relevance and novel information This is the first report of primary pulmonary diffuse large B-cell lymphoma associated with FeLV infection in a young cat.
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Affiliation(s)
- Kento Ishikawa
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Tomokazu Nagashima
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
- Veterinary Medical Center, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yukino Machida
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Akiko Yasuda
- Veterinary Medical Center, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Karin Yoshida
- Veterinary Medical Center, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Michio Fujita
- Division of Veterinary Radiology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kazuhiko Ochiai
- Department of Veterinary Hygiene, Nippon Veterinary and Life Science University, Tokyo, Japan
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan
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10
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Michishita M, Shibata R, Machida Y, Matsumoto M, Ochiai K, Azakami D. Subleukaemic T-Lymphoblastic Leukaemia in a Horse. J Comp Pathol 2021; 188:21-25. [PMID: 34686273 DOI: 10.1016/j.jcpa.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/30/2021] [Accepted: 08/16/2021] [Indexed: 11/27/2022]
Abstract
A 20-year-old Dutch Warmblood gelding was referred with clinical signs of anorexia, weight loss, intermittent fever, cough, subcutaneous oedema and exercise intolerance. Haematological examination revealed the presence of blast cells, decreased lymphocytes, mild thrombocytopenia and anaemia but no leucocytosis. Serum analyses detected elevated aspartate aminotransferase and gamma-glutamyl transferase activities and triglyceride concentrations. Twenty-two days after the initial visit, the horse died after showing clinical signs of decreased appetite, increased body temperature, tachypnoea and tachycardia. At necropsy, there was mild splenomegaly but enlarged lymph nodes, masses or nodules were not seen in any organ. Histologically, neoplastic cells were seen in the subcapsular and medullary lymph sinus of the mediastinal, axillary, mesenteric and renal lymph nodes. The bone marrow was densely cellular with numerous large round neoplastic cells that had round nuclei with clear nucleoli and scant cytoplasm. The neoplastic cells were immunopositive for CD3 but negative for CD20, BLA36, CD204, Iba-1, CD204 and granzyme B. Based on these findings, the neoplasm was diagnosed as subleukaemic T-lymphoblastic leukaemia, which, to the best of our knowledge, is the first report of this neoplasm in horses.
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Affiliation(s)
- Masaki Michishita
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan; Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Kanagawa, Japan.
| | - Ritsu Shibata
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yukino Machida
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | | | - Kazuhiko Ochiai
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Kanagawa, Japan; Department of Veterinary Hygiene, Nippon Veterinary and Life Science University, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Tokyo University of Agriculture and Technology, Tokyo, Japan
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11
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Yamamoto H, Elbadawy M, Fujisaka K, Sato Y, Ohmori T, Shinohara Y, Hatano Y, Kobayashi D, Gomyo A, Sudo Y, Azakami D, Uchide T, Fukushima R, Morita S, Abugomaa A, Yamawaki H, Kaneda M, Usui T, Sasaki K. Evaluation of the Safety and Feasibility of Apheresis in Dogs: For Application in Metastatic Cancer Research. Animals (Basel) 2021; 11:2770. [PMID: 34679792 PMCID: PMC8532909 DOI: 10.3390/ani11102770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/18/2021] [Accepted: 09/18/2021] [Indexed: 11/17/2022] Open
Abstract
In patients with solid tumors, circulating tumor cells (CTCs) spread in their blood and function as a seed for metastases. However, the study of CTCs has been limited by their rarity, low frequency, and heterogeneity. The efficient collection of CTCs will contribute to further research of metastatic cancers. Apheresis is a process in which the whole blood of an individual is passed through a machine that isolates a particular constituent and returns the remainder to the circulation. In the present study, we investigated the safety and feasibility of apheresis to separate peripheral blood monocytes (PBMCs), whose density is closely similar to that of CTCs, and to capture intravenously administered human breast cancer cells, MCF7s, from the dogs. No life-threatening events were observed in dogs during the apheresis process. The changes in the hemogram were transient and recovered gradually within a few days after apheresis. During apheresis, 50 mL of PBMCs could be collected from each dog. Notably, a thrombus was formed along the circuit wall during apheresis, which decreased the blood collection pressure. MCF7 cells were successfully captured by the apheresis machine. The captured cells were regrown in vitro and characterized compared with the original cells. In conclusion, apheresis could be safely performed in dogs to isolate CTCs with precautions to maintain hemodynamic stability.
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Affiliation(s)
- Haru Yamamoto
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
| | - Mohamed Elbadawy
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
- Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh 13736, Elqaliobiya, Egypt
| | - Koudai Fujisaka
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
| | - Yomogi Sato
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
| | - Takahiro Ohmori
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (T.O.); (R.F.); (S.M.)
| | - Yuta Shinohara
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
- Pet Health & Food Division, Iskara Industry Co., Ltd., 1-14-2, Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan
| | - Yui Hatano
- Laboratory of Clinical Oncology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (Y.H.); (D.K.); (A.G.); (Y.S.)
| | - Daichi Kobayashi
- Laboratory of Clinical Oncology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (Y.H.); (D.K.); (A.G.); (Y.S.)
| | - Ayana Gomyo
- Laboratory of Clinical Oncology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (Y.H.); (D.K.); (A.G.); (Y.S.)
| | - Yuji Sudo
- Laboratory of Clinical Oncology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (Y.H.); (D.K.); (A.G.); (Y.S.)
| | - Daigo Azakami
- Laboratory of Clinical Oncology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (Y.H.); (D.K.); (A.G.); (Y.S.)
| | - Tsuyoshi Uchide
- Laboratory of Veterinary Molecular Pathology and Therapeutics, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8538, Japan;
| | - Ryuji Fukushima
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (T.O.); (R.F.); (S.M.)
| | - Shohei Morita
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (T.O.); (R.F.); (S.M.)
| | - Amira Abugomaa
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
- Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Dakahliya, Egypt
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, 35-1, Higashi 23 Ban-cho, Towada, Aomori 034-8628, Japan;
| | - Masahiro Kaneda
- Laboratory of Veterinary Anatomy, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan;
| | - Tatsuya Usui
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
| | - Kazuaki Sasaki
- Laboratory of Veterinary Pharmacology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (H.Y.); (M.E.); (K.F.); (Y.S.); (Y.S.); (A.A.); (K.S.)
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12
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Hanari N, Nagashima T, Machida Y, Kubo Y, Hamamoto Y, Kamiie J, Ochiai K, Azakami D, Michishita M. Gastric Plasmacytoma with Immunoglobulin Lambda Light Chain Deposition in a Dog. J Comp Pathol 2021; 187:7-10. [PMID: 34503657 DOI: 10.1016/j.jcpa.2021.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/13/2021] [Accepted: 06/18/2021] [Indexed: 11/28/2022]
Abstract
A 12-year-old castrated male Jack Russell Terrier presented with intermittent vomiting. Abdominal ultrasonographic examination detected a thickened stomach wall with a mass measuring approximately 1.5 cm in diameter. Computed tomography revealed a solitary mass measuring approximately 2.1 cm in diameter between the submucosa and muscle layers in the greater curvature the pyloric region of the stomach, and a swelling in the hepatic lymph node. The gastric mass was composed of round neoplastic cells arranged in a diffuse pattern. The neoplastic cells had a round nucleus and a pale abundant cytoplasm. Multinucleated giant cells were often found. Hyalinized eosinophilic material, which did not stain with Congo red and had no affinity for thioflavin T, was also observed. Neoplastic cells were immunopositive for MUM1, CD79a and Ig lambda light chain but negative for CD3, CD20, BLA36, IgG and Ig kappa light chain. Stromal eosinophilic material was positive for Ig lambda light chain. The neoplasm was therefore diagnosed as a gastric plasmacytoma with non-amyloid Ig lambda light chain deposition.
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Affiliation(s)
- Naoki Hanari
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Tomokazu Nagashima
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan; Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yukino Machida
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yoshiaki Kubo
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yuji Hamamoto
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Junichi Kamiie
- Laboratory of Veterinary Pathology, Azabu University, Kanagawa, Japan
| | - Kazuhiko Ochiai
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan; Department of Veterinary Hygiene, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan; Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Tokyo, Japan.
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13
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Elbadawy M, Sato Y, Mori T, Goto Y, Hayashi K, Yamanaka M, Azakami D, Uchide T, Fukushima R, Yoshida T, Shibutani M, Kobayashi M, Shinohara Y, Abugomaa A, Kaneda M, Yamawaki H, Usui T, Sasaki K. Anti-tumor effect of trametinib in bladder cancer organoid and the underlying mechanism. Cancer Biol Ther 2021; 22:357-371. [PMID: 34034619 DOI: 10.1080/15384047.2021.1919004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Bladder cancer (BC), a main neoplasm of urinary tract, is usually inoperable and unresponsive to chemotherapy. As a novel experimental model for muscle-invasive BC, we previously established a culture method of dog BC organoids. In the present study, the detailed in vitro and in vivo anti-tumor effects of trametinib were investigated by using this model. In each BC organoid strain, epidermal growth factor receptor (EGFR)/ERK signaling was upregulated compared with normal bladder cells. Trametinib even at a low concentration inhibited the cell viability of BC organoids and the activation of ERK through decreasing expression of c-Myc, ELK1, SIK1, and PLA2G4A. Trametinib arrested cell cycle of BC with few apoptosis. Dual treatment of BC organoids with trametinib and YAP inhibitor, verteporfin extremely inhibited the cell viability with apoptosis induction. Moreover, trametinib induced basal to luminal differentiation of BC organoids by upregulating luminal markers and downregulating basal ones. In vivo, trametinib decreased the tumor growth of BC organoids in mice and the xenograft-derived organoids from trametinib-administered mice showed enhanced sensitivity to carboplatin due to MSH2 upregulation. Our data suggested a new strategy of trametinib-YAP inhibitor or trametinib-carboplatin combination as a promising treatment of BC.
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Affiliation(s)
- Mohamed Elbadawy
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan.,Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Yomogi Sato
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Takashi Mori
- Laboratory of Veterinary Clinical Oncology, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences, Gifu University (G-CHAIN), Gifu, Japan
| | - Yuta Goto
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Kimika Hayashi
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Megumi Yamanaka
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Daigo Azakami
- Department of Veterinary Clinical Oncology, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Tsuyoshi Uchide
- Department of Veterinary Surgery, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Ryuji Fukushima
- Animal Medical Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Toshinori Yoshida
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Makoto Shibutani
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Mio Kobayashi
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Yuta Shinohara
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan.,Pet Health & Food Division, Iskara Industry CO., LTD, Chuo-ku, Japan
| | - Amira Abugomaa
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan.,Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Masahiro Kaneda
- Laboratory of Veterinary Anatomy, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Tatsuya Usui
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Kazuaki Sasaki
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
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14
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Kawakami S, Michishita M, Sakaue M, Morimatsu M, Uemura M, Kashiwagi N, Maeda M, Machida Y, Azakami D, Egusa AS, Onozawa E, Ishioka K, Watanabe M, Tanaka Y, Omi T, Ochiai K. Novel canine isocitrate dehydrogenase 1 mutation Y208C attenuates dimerization ability. Oncol Lett 2020; 20:351. [PMID: 33123262 PMCID: PMC7586285 DOI: 10.3892/ol.2020.12214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/11/2020] [Indexed: 11/06/2022] Open
Abstract
Isocitrate dehydrogenase 1 (IDH1) mutations are common in gliomas, acute myeloid leukemia, and chondrosarcoma. The mutation ‘hotspot’ is a single arginine residue, R132. The R132H mutant of IDH1 produces the 2-hydroxyglutarate (2-HG) carcinogen from α-ketoglutarate (α-KG). The reduction of α-KG induces the accumulation of hypoxia-inducible factor-1α subunit (HIF-1α) in the cytosol, which is a predisposing factor for carcinogenesis. R132H is the most common IDH1 mutation in humans, but mutations at the R132 residue can also occur in tumor tissues of dogs. The current study reported the discovery of a novel Tyr208Cys (Y208C) mutation in canine IDH1 (cIDH1), which was isolated from 2 of 45 canine chondrosarcoma cases. As the genomic DNA isolated from chondrosarcoma tissue was mutated, but that isolated from blood was not, Y208C mutations were considered to be spontaneous somatic mutations. The isocitrate dehydrogenase activity of the Y208C mutant was attenuated compared with that of wild-type (WT) cIDH1, but the attenuation of Y208C was less intense than that of the R132H mutation. The induction of HIF-1α response element activity and cell retention of HIF-1α were not increased by Y208C overexpression. In silico and cell biological analysis of IDH1 dimerization revealed that the Y208C mutation, but not the R132H mutation, attenuated binding activity with WT cIDH1. These data suggested that the attenuation of dimerization by the Y208C mutation may cause tumorigenesis through different mechanisms other than via 2-HG production by the IDH1 R132 mutation.
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Affiliation(s)
- Shota Kawakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Musashino, Tokyo 180-8602, Japan
| | - Masaki Michishita
- Laboratory of Veterinary Pathology, School of Veterinary Science, Musashino, Tokyo 180-8602, Japan.,Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Motoharu Sakaue
- Laboratory of Anatomy II, Department of Veterinary Medicine, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa 252-5201, Japan
| | - Masami Morimatsu
- Laboratory of Animal Science and Medicine, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Mitsuki Uemura
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Musashino, Tokyo 180-8602, Japan.,Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Nobuaki Kashiwagi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Musashino, Tokyo 180-8602, Japan.,Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Marika Maeda
- Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Yukino Machida
- Laboratory of Veterinary Pathology, School of Veterinary Science, Musashino, Tokyo 180-8602, Japan
| | - Daigo Azakami
- Laboratory of Clinical Oncology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8538, Japan
| | - Ai S Egusa
- Department of Applied Life Science, Faculty of Food Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Eri Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Musashino, Tokyo 180-8602, Japan
| | - Katsumi Ishioka
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Musashino, Tokyo 180-8602, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Yoshikazu Tanaka
- Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan.,Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Toshinori Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Musashino, Tokyo 180-8602, Japan.,Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
| | - Kazuhiko Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Musashino, Tokyo 180-8602, Japan.,Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan.,Laboratory of Veterinary Hygiene, School of Veterinary Science, Nippon Veterinary and Life Science University, Musashino, Tokyo 180-8602, Japan
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15
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Michishita M, Ishizaki Y, Konnai M, Machida Y, Nakahira R, Hatakeyama H, Yoshimura H, Yamamoto M, Soeta S, Ochiai K, Misawa K, Yugeta N, Azakami D. Primary Lymphangiosarcoma of the Urinary Bladder in a Dog. J Comp Pathol 2020; 179:31-35. [PMID: 32958144 DOI: 10.1016/j.jcpa.2020.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/21/2020] [Accepted: 06/24/2020] [Indexed: 11/18/2022]
Abstract
Abdominal ultrasonographical and computed tomography examinations of a 12-year-old neutered female toy poodle revealed a protruding mass, approximately 2 cm in diameter, at the apex of the bladder. The mass was firm and haemorrhagic with a homogeneously brownish-yellow cut surface. Microscopically, it was unencapsulated and located in the muscle layer with invasion of the extra-muscular layer. It was composed of spindloid to oval neoplastic cells that formed irregular clefts and diffuse sheets that dissected bundles of collagen. Immunohistochemically, the neoplastic cells were positive for vimentin and lymphatic vessel endothelial hyaluronan receptor 1 antigens, but negative for cytokeratin AE1/AE3, factor VIII-related antigen, CD31, CD34, Prox-1, S100, desmin, α-smooth muscle actin and MyoD1. Negative immunolabelling for laminin antigen supported the absence of evidence of a basal lamina on ultrastructural examination. Based on these findings, this tumour was identified as a lymphangiosarcoma. To the best of our knowledge, this case is the first report of lymphangiosarcoma arising from the bladder in a dog.
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Affiliation(s)
- M Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.
| | - Y Ishizaki
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Konnai
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Y Machida
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - R Nakahira
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - H Hatakeyama
- Laboratory of Comparative Cellular Biology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - H Yoshimura
- Department of Applied Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Yamamoto
- Department of Applied Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - S Soeta
- Department of Veterinary Anatomy, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - K Ochiai
- Department of Basic Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University
| | | | | | - D Azakami
- Laboratory of Veterinary Clinical Oncology, Tokyo University of Agriculture and Technology, Tokyo, Japan
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16
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Tani H, Kurita S, Miyamoto R, Sawada H, Fujiwara-Igarashi A, Michishita M, Azakami D, Hasegawa D, Tamura K, Bonkobara M. Nimustine Treatment of 11 Cases of Canine Histiocytic Sarcoma. J Am Anim Hosp Assoc 2020; 56:146. [PMID: 32182105 DOI: 10.5326/jaaha-ms-6959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The objective of this retrospective study was to report treatment outcomes in dogs with histiocytic sarcoma (HS) that were treated with nimustine (ACNU). This study evaluated data from 11 dogs including 5 with macroscopic tumors that were treated in the primary setting and 6 that underwent aggressive local therapy while being treated in the adjuvant setting. The median ACNU starting dose was 25 mg/m2 (range, 20-30 mg/m2; 3- to 5-wk intervals, 1-8 administrations). The median overall survival in the primary and adjuvant settings was 120 days (median progression-free survival [PFS], 63 days) and 400 days (median PFS, 212 days), respectively. Neutropenia was observed in eight cases (grade 1, n = 1; grade 2, n = 2; grade 3, n = 2; grade 4, n = 3) with nadir neutrophil count at 1 wk after ACNU administration. Mild gastrointestinal toxicity (grade 1-2) was observed in three cases. ACNU was well tolerated and showed a similar outcome to that seen for lomustine, which is a drug commonly used to treat canine HS, in terms of overall survival and PFS in the current study population. Further investigations will need to be undertaken to definitively determine if ACNU is an appropriate alternative to lomustine for the treatment of HS.
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Affiliation(s)
- Hiroyuki Tani
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Sena Kurita
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Ryo Miyamoto
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Harumi Sawada
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Aki Fujiwara-Igarashi
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masaki Michishita
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daisuke Hasegawa
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kyoichi Tamura
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Makoto Bonkobara
- From the Department of Veterinary Clinical Pathology (H.T., S.K., R.M., K.T., M.B.), Veterinary Medical Teaching Hospital (H.S.), Laboratory of Veterinary Radiology (A.F.-I., D.H.), Department of Veterinary Pathology (M.M.), and Department of Veterinary Nursing (D.A.), Nippon Veterinary and Life Science University, Tokyo, Japan
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17
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Noguchi S, Kubo Y, Araki M, Koh M, Hamamoto Y, Tamura K, Otsuka H, Yasuda A, Azakami D, Michishita M, Soeta S. Big Insulin-like Growth Factor 2-Producing Tumor in a Hypoglycemic Dog. Vet Pathol 2020; 57:432-436. [PMID: 32148182 DOI: 10.1177/0300985820906897] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A 10-year-old female Papillon dog that had previously developed a mammary tumor was admitted for treatment of a hypoglycemic attack. Blood examination showed severe hypoglycemia and decreased blood insulin concentration. Computed tomography indicated multiple tumors in the cranial and caudal lobes of the right lung. These tumors were resected surgically and diagnosed as pulmonary adenocarcinomas by histopathologic examination. Hypoglycemia was temporarily improved after the resection, but a hypoglycemic event occurred 2 months after the surgery. Immunohistochemistry of the tumor demonstrated the expression of insulin-like growth factor 2 in tumor cells. Western blot analysis revealed the expression of high-molecular-weight (big)-insulin-like growth factor 2 in the tumor region. Insulin-like growth factor 2 mRNA expression was also confirmed in the tumor using reverse transcription-polymerase chain reaction. These findings indicate the diagnosis of non-islet cell tumor-induced hypoglycemia caused by big-insulin-like growth factor 2 produced by the tumor in the dog. This report provides information on differentiating tumors that cause paraneoplastic hypoglycemia.
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Affiliation(s)
- Syunya Noguchi
- Department of Veterinary Anatomy, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yoshiaki Kubo
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Mami Araki
- Department of Veterinary Anatomy, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Miki Koh
- Department of Veterinary Anatomy, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yuji Hamamoto
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kyoichi Tamura
- Department of Veterinary Clinical Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hirotada Otsuka
- Department of Veterinary Anatomy, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Akiko Yasuda
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Satoshi Soeta
- Department of Veterinary Anatomy, Nippon Veterinary and Life Science University, Tokyo, Japan
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18
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Uemura M, Ochiai K, Morimatsu M, Michishita M, Onozawa E, Azakami D, Uno Y, Yoshikawa Y, Sasaki T, Watanabe M, Omi T. The canine RAD51 mutation leads to the attenuation of interaction with PALB2. Vet Comp Oncol 2019; 18:247-255. [PMID: 31518051 DOI: 10.1111/vco.12542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/05/2019] [Accepted: 09/05/2019] [Indexed: 12/19/2022]
Abstract
RAD51 forms a complex with BRCA2 and plays a central role in the DNA damage response pathway that is associated with homologous recombination. The structures of RAD51 and its homologues are highly conserved from prokaryotes to higher eukaryotes. Although a large number of BRCA2 mutations have been reported, there are only a few reports on the mutations of RAD51, which have been shown in humans and dogs. However, several mutations of canine RAD51 were identified from mammary gland tumour tissues in a recent study. Some of these mutations seem to have an influence on the homo-oligomerization or interaction with "Partner and localizer of BRCA2" (PALB2). In this study, we cloned the canine PALB2 homologue and investigated the effect on its interaction with the RAD51 mutants to evaluate the alteration in the function of RAD51 mutants. The A209S and T225S mutants of RAD51 show an attenuation of the interaction between RAD51 and PALB2. These results indicate that the canine RAD51 mutations can potentially alter the homologous recombination pathways in response to DNA damage in dogs.
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Affiliation(s)
- Mitsuki Uemura
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kazuhiko Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masami Morimatsu
- Laboratory of Laboratory Animal Science and Medicine, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Eri Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Yumiko Uno
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yasunaga Yoshikawa
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Takanori Sasaki
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Toshinori Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
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19
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Michishita M, Fujiwara-Igarashi A, Suzuki S, Hatakeyama H, Machida Y, Yoshimura H, Yamamoto M, Azakami D, Ochiai K, Ishiwata T, Fujita M. Diffuse Pulmonary Meningotheliomatosis with Sarcomatous Transformation in a Shiba Dog. J Comp Pathol 2019; 171:1-5. [PMID: 31540619 PMCID: PMC7094254 DOI: 10.1016/j.jcpa.2019.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 06/18/2019] [Accepted: 06/24/2019] [Indexed: 11/17/2022]
Abstract
A 2-year-old neutered female Shiba dog exhibited laboured breathing for 1 month. Computed tomography of the thoracic cavity revealed multiple nodules (2-5 mm diameter) in the lungs. Grossly, the lungs were firm and normal in shape. The nodules were grey-white in colour. Microscopically, the nodules were non-encapsulated and exhibited an irregular shape. They were composed of polygonal or spindle cells with indistinct cell borders arranged in sheets. The cells had large, round, hyperchromatic nuclei and abundant pale eosinophilic cytoplasm with no atypia. Intrapulmonary arterial emboli and infiltration into the bronchioles were observed. Immunohistochemically, the cells were positive for vimentin and negative for cytokeratin, glial fibrillary acidic protein and α-smooth muscle actin. Ultrastructurally, the cells displayed cytoplasmic processes, desmosomes and intermediate filaments. These findings led to a diagnosis of diffuse pulmonary meningotheliomatosis with sarcomatous transformation. To the best of our knowledge, this is the first report of diffuse pulmonary meningotheliomatosis in a dog.
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Affiliation(s)
- M Michishita
- Department of Veterinary Pathology, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo.
| | - A Fujiwara-Igarashi
- Division of Veterinary Radiology, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
| | - S Suzuki
- Division of Veterinary Surgery, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
| | - H Hatakeyama
- Laboratory of Comparative Cellular Biology, School of Veterinary Medicine, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
| | - Y Machida
- Department of Veterinary Pathology, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
| | - H Yoshimura
- Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
| | - M Yamamoto
- Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
| | - D Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
| | - K Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Japan
| | - T Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - M Fujita
- Division of Veterinary Radiology, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo
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20
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Michishita M, Saito N, Nozawa S, Furumoto R, Nakagawa T, Sato T, Ochiai K, Azakami D, Katayama K, Nakahira R, Tazaki H, Machida Y, Ishiwata T. Metabolite profiling in sphere-forming cells from canine mammary adenocarcinoma cell lines using gas chromatography-mass spectrometry. J Vet Med Sci 2019; 81:1238-1248. [PMID: 31308293 PMCID: PMC6785626 DOI: 10.1292/jvms.19-0194] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Cancer consists of heterogeneous cells that contain a small population of cells that possess stem cell properties; these cells, referred to as cancer stem cells (CSCs) or tumor-initiating
cells, are involved in tumor progression and metastasis. Using a sphere-forming assay, canine mammary CSCs were found to be similar to human breast CSCs. Metabolic reprogramming has been
recognized as a hallmark of various cancers. However, the significance of cellular metabolism in CSCs remains unclear. The aim of this study was to define the metabolic characteristics of
CSCs derived from canine mammary tumors and gain an understanding of the maintenance of stemness. We identified metabolite profiles of canine mammary adenocarcinoma cell lines using gas
chromatography-mass spectrometry. Metabolites were extracted from both adherent and sphere-forming cells derived from three cell lines. Sphere-forming cells were separated from adherent
cells using an orthogonal, partial least-squares discriminant analysis. Sphere-forming cells were found to contain high levels of the amino acids alanine, glycine and proline compared with
adherent cells. They also had high levels of palmitoleate, palmitate and dihomo-gamma-linolenic acid compared with adherent cells. In a sphere-forming assay, palmitate increased the number
of spheres for all cell lines. These results indicate that the sphere-forming cells derived from canine mammary adenocarcinoma cell lines have specific metabolic profiles that may be useful
for the development of CSC-specific therapies targeting metabolic pathways and potential stemness biomarkers; these results also clarify the maintenance of stemness in canine mammary
CSCs.
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Affiliation(s)
- Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Namika Saito
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Satoshi Nozawa
- Department of Biomolecular Chemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Rina Furumoto
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Touko Sato
- Department of Biomolecular Chemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kazuhiko Ochiai
- Department of Basic Science, School of Veterinary Nursing, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kinya Katayama
- Department of Biomolecular Chemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Rei Nakahira
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Hiroyuki Tazaki
- Department of Biomolecular Chemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Yukino Machida
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
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21
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Kawata R, Ii T, Hori T, Machida Y, Ochiai K, Azakami D, Ishiwata T, Michishita M. Leydig cell tumor in an Amur tiger (Panthera tigris altaica). J Vet Med Sci 2019; 81:186-189. [PMID: 30541983 PMCID: PMC6395220 DOI: 10.1292/jvms.18-0573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
A 14-year and 8-month-old intact male Amur tiger presented with an enlarged left testis,
measuring 5.7 × 5.5 × 4.5 cm. The cut surface was mottled dark red to reddish brown in
color. Microscopically, the enlarged left testis comprised round or polygonal neoplastic
cells arranged in a diffuse sheet pattern. These neoplastic cells had a hyperchromatic
nucleus and an abundant eosinophilic cytoplasm. Immunohistochemically, these neoplastic
cells were positive for vimentin, chromogranin A, synaptophysin, melan-A, inhibin-α, and
S100 and negative for desmin and WT-1. Based on these morphological and
immunohistochemical findings, the tumor was diagnosed as a Leydig cell tumor.
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Affiliation(s)
- Risako Kawata
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Tatsuhito Ii
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Tatsuya Hori
- Department of Veterinary Reproduction, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Yukino Machida
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kazuhiko Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
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22
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Yoshimura H, Otsuka A, Michishita M, Yamamoto M, Ashizawa M, Zushi M, Moriya M, Azakami D, Ochiai K, Matsuda Y, Ishiwata T, Kamiya S, Takahashi K. Expression and Roles of S100A4 in Anaplastic Cells of Canine Mammary Carcinomas. Vet Pathol 2019; 56:389-398. [DOI: 10.1177/0300985818823772] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
S100A4 (metastasin), a member of the S100 protein family, was initially identified in metastatic cells and is well established as a marker of aggressive human cancer. However, expression and roles of S100A4 in canine mammary tumors have not been clarified. In this study, expression of S100A4 was examined immunohistochemically in normal, hyperplastic, and neoplastic mammary glands of dogs. In all normal and benign lesions, S100A4 was restricted to a few stromal fibroblasts and inflammatory cells. However, in 7 of 57 (12%) of the malignant tumors examined, cytoplasmic and nuclear expression of S100A4 was observed in epithelial tumor cells and stromal cells. Particularly, the frequency of S100A4-positive anaplastic carcinomas was high (4/8 cases, 50%). Next, we established a novel cell line, named NV-CML, from a S100A4-positive canine mammary carcinoma. The cultured NV-CML cells and the tumors that developed in the immunodeficient mice after subcutaneous injection of the cells maintained the immunophenotype of the original tumor, including S100A4 expression. Using this cell line, we examined the cellular functions of S100A4 using RNA interference. S100A4 expression level in NV-CML cells transfected with small interfering RNA (siRNA) targeting canine S100A4 (siS100A4) was reduced to about one-fifth of those with negative-control siRNA (siNeg). Cell proliferation in WST-8 assay and cell migration in Boyden chamber assay were significantly decreased in siS100A4-transfected cells compared with siNeg-transfected cells. These findings suggest that S100A4 may be related to progression of canine mammary carcinomas via its influence on cell growth and motility.
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Affiliation(s)
- Hisashi Yoshimura
- Division of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Aya Otsuka
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masami Yamamoto
- Division of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Minori Ashizawa
- Division of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Manami Zushi
- Division of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Maiko Moriya
- Division of Physiological Pathology, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kazuhiko Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yoko Matsuda
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Shinji Kamiya
- Division of Animal Higher Function, Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kimimasa Takahashi
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
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23
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Azakami D, Saito A, Ochiai K, Ishiwata T, Takahashi K, Kaji N, Kaji D, Kaji N, Michishita M. Chronic Basophilic Leukaemia in a Dog. J Comp Pathol 2018; 166:5-8. [PMID: 30691606 DOI: 10.1016/j.jcpa.2018.10.170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 09/20/2018] [Accepted: 10/22/2018] [Indexed: 10/27/2022]
Abstract
A 13-year-old neutered female mixed-breed dog with a clinical history of emaciation, inappetence and vomiting for 2 months was presented. Blood tests showed marked leucocytosis with increased neutrophil and basophil count, mild thrombocytosis and anaemia. Seven days after the initial visit, the dog died and was submitted for necropsy examination. Grossly, the bone marrow was red in colour and hepatomegaly and splenomegaly with discolouration were observed. A bone marrow smear showed an increased proportion of basophilic lineage cells. Histologically, the bone marrow showed high cellular density and numerous basophilic lineage cells with a round or segmented nucleus. The cytoplasm contained basophilic granules exhibiting metachromasia on toluidine blue staining. Immunohistochemically, the neoplastic basophils were diffusely positive for vimentin and myeloperoxidase, but negative for CD3, BLA36, CD163, CD204 and c-kit. The immunohistochemical features of neoplastic basophils that had invaded the liver and spleen were similar to those of the basophils in the bone marrow. Based on the clinicopathological and histopathological findings, chronic basophilic leukaemia was diagnosed. The present case study provides insights into the pathological features of chronic basophilic leukaemia in dogs.
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Affiliation(s)
- D Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - A Saito
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - K Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - T Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - K Takahashi
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - N Kaji
- Kaji Animal Clinic, Fukuoka, Japan
| | - D Kaji
- Kaji Animal Clinic, Fukuoka, Japan
| | - N Kaji
- Kaji Animal Clinic, Fukuoka, Japan
| | - M Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.
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24
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Ochiai K, Azakami D, Morimatsu M, Hirama H, Kawakami S, Nakagawa T, Michishita M, Egusa AS, Sasaki T, Watanabe M, Omi T. Endogenous Leu332Gln mutation in p53 disrupts the tetramerization ability in a canine mammary gland tumor cell line. Oncol Rep 2018; 40:488-494. [PMID: 29750295 DOI: 10.3892/or.2018.6409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 04/27/2018] [Indexed: 11/06/2022] Open
Abstract
Mutations in the p53 gene are associated with more than half of all human cancers. These mutations often cause a disruption of the tumor-suppressor function of p53 and induce genomic instabilities. Wild‑type p53 requires tetramerization to function as an initiator of cell cycle arrest and apoptosis. Although alterations in p53 tetramerization caused by mutation have been well studied, there are few cell lines containing an endogenous mutation in the tetramerization domain of p53. Here, we report the discovery of a canine mammary gland tumor cell line CTB‑m2, which contains the Leu332Gln (L332Q) mutation corresponding to Leu344 in the tetramerization domain of human p53. Although CTB‑m2 cells are genetically heterozygous for the Leu332Gln mutation, the mutant mRNA was almost exclusively expressed. CTB‑m2 cells showed enhanced cell proliferation compared to wild‑type p53-expressing CTB‑m cells of the same lineage. A p53 tetramerization reporter assay showed that the ability of the p53 mutant to form tetramers was significantly lower than that of wild‑type p53. An immunoblot analysis of cross-linked p53 oligomerized forms demonstrated that the L332Q mutant lacked the ability to form tetramers but retained the ability to form dimers. These data suggest that the p53 mutant cell line CTB‑m2 could be a useful tool for analyzing the precise tetramerization mechanisms of p53 and verifying the effects of therapeutic agents against tumors expressing p53 mutants that lack the ability to tetramerize.
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Affiliation(s)
- Kazuhiko Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Daigo Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Masami Morimatsu
- Laboratory of Laboratory Animal Science and Medicine, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Hinako Hirama
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Shota Kawakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Takayuki Nakagawa
- Department of Veterinary Surgery, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Ai S Egusa
- Department of Applied Life Science, Faculty of Food Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Takanori Sasaki
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Toshinori Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
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Chambers JK, Thongtharb A, Shiga T, Azakami D, Saito M, Sato M, Morozumi M, Nakayama H, Uchida K. Accumulation of Laforin and Other Related Proteins in Canine Lafora Disease With EPM2B Repeat Expansion. Vet Pathol 2018; 55:543-551. [DOI: 10.1177/0300985818758471] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Canine Lafora disease (LD) is an autosomal recessive genetic disorder causing nonfatal structural epilepsy, mainly affecting miniature wirehaired dachshunds. Repeat expansion in the EPM2B gene causes a functional impairment of the ubiquitin ligase malin which regulates glycogen metabolism. Abnormally structured glycogen accumulates and develop polyglucosan bodies predominantly in the central nervous system. The authors performed a comprehensive clinical, genetic, and pathological study of 4 LD cases affecting miniature wirehaired dachshund dogs with EPM2B repeat expansions, with systemic distribution of polyglucosan bodies and accumulation of laforin and other functionally associated proteins in the polyglucosan bodies. Myoclonic seizures first appeared at 7–9 years of age, and the dogs died at 14–16 years of age. Immunohistochemistry for calbindin revealed that the polyglucosan bodies were located in the cell bodies and dendritic processes of Purkinje cells. Polyglucosan bodies were also positive for laforin, hsp70, α/β-synuclein, ubiquitin, LC3, and p62. Laforin-positive polyglucosan bodies were located in neurofilament-positive neurons but not in GFAP-positive astrocytes. In nonneural tissues, periodic acid-Schiff (PAS)-positive polyglucosan bodies were observed in the heart, skeletal muscle, liver, apocrine sweat gland, and smooth muscle layer of the urinary bladder. In the skeletal muscle, polyglucosan bodies were observed only in type 1 fibers and not in type 2 fibers. The results indicate that although the repeat expansion of the EPM2B gene is specific to dogs, the immunohistochemical properties of polyglucosan body in canine LD are comparable to human LD. However, important phenotypic variations exist between the 2 species including the affected skeletal muscle fiber type.
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Affiliation(s)
- James K. Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyō, Tokyo, Japan
| | - Atigan Thongtharb
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyō, Tokyo, Japan
| | - Takanori Shiga
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyō, Tokyo, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Nursing, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Miyoko Saito
- Laboratory of Veterinary Surgery II, Azabu University, Chuo Ward, Sagamihara, Kanagawa Prefecture, Japan
| | - Masumi Sato
- National Institute of Animal Health, Tsukuba, Ibaraki Prefecture, Japan
| | | | - Hiroyuki Nakayama
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyō, Tokyo, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyō, Tokyo, Japan
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26
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Kawakami S, Ochiai K, Azakami D, Kato Y, Michishita M, Morimatsu M, Ishiguro-Oonuma T, Onozawa E, Watanabe M, Omi T. R132 mutations in canine isocitrate dehydrogenase 1 (IDH1) lead to functional changes. Vet Res Commun 2017; 42:49-56. [PMID: 29285579 DOI: 10.1007/s11259-017-9707-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 12/19/2017] [Indexed: 11/25/2022]
Abstract
Glioma is the second most common intracranial neoplasia in dogs, but the pathogenic mechanisms remain unclear. In humans, isocitrate dehydrogenase 1 (IDH1) is frequently mutated in gliomas. Although almost all human IDH1 mutations have been identified as involving the Arg132 codon, few studies have reported structural, functional, and mutational information for canine IDH1. Therefore, in this study, we cloned the canine IDH1 homologue and used PCR mutagenesis to substitute the wildtype (WT) Arg132 with His (R132H) or Ser (R132S). WT and mutated IDH1 were overexpressed in HeLa cells, and their presence was confirmed by immunoblotting and immunocytochemistry using mutation-specific antibodies. The IDH1 activity between WT, R132H, and R132S transfectants was compared by measuring the production of NADH and NADPH. NADPH production in R132H and R132S transfectants was lower than that in WT, but NADH levels were not significantly different. Finally, we detected increased expression of hypoxia inducible factor 1 alpha (HIF-1α) in the R132H and R132S transfectants. These results indicated that the canine IDH1 Arg132 mutation has the potential to induce carcinogenesis in canine somatic cells.
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Affiliation(s)
- Shota Kawakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kazuhiko Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan.
| | - Daigo Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yuiko Kato
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masami Morimatsu
- Laboratory of Laboratory Animal Science and Medicine, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Toshina Ishiguro-Oonuma
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Japan
| | - Eri Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Toshinori Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
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27
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Kawakami S, Ochiai K, Kato Y, Michishita M, Hirama H, Obara R, Azakami D, Watanabe M, Omi T. Functional alteration of canine isocitrate dehydrogenase 2 (IDH2) via an R174K mutation. J Vet Med Sci 2017; 80:85-91. [PMID: 29162772 PMCID: PMC5797864 DOI: 10.1292/jvms.17-0362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Gliomas are common intracranial neoplasias in dogs. However, the underlying pathogenic mechanisms remain unclear. In humans, isocitrate dehydrogenase 2 (IDH2) is often mutated in gliomas. Although almost human IDH2
mutations have been identified at the Arg172 codon, few studies have reported structural, functional or mutational information for canine IDH2. In this study, we cloned the full-length canine IDH2 (cIDH2) cDNA and
substituted wild type Arg174 (cIDH2 WT: corresponding to R172 of human IDH2) with Lys (cIDH2 R174K). The cIDH2 WT and R174K proteins were overexpressed in HeLa cells, and their presence was confirmed using an anti-human
IDH2-WT mAb (clone: KrMab-3) and an anti-IDH2-R172K mAb (clone: KMab-1). The IDH2 activity between cIDH2 WT and cIDH2 R174K transfectants was compared by measuring the production of NADH and NADPH. NADPH production was
lower for cIDH2 R174K than that for cIDH2 WT transfectants. Finally, we detected increased expression of hypoxia inducible factor-1 alpha (HIF-1α) in cIDH2 R174K transfectants. This indicates that mutations at R174 can
potentially induce carcinogenesis in canine somatic cells.
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Affiliation(s)
- Shota Kawakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Kazuhiko Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Yuiko Kato
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Hinako Hirama
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Ryo Obara
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Daigo Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Toshinori Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
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28
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Hagiwara K, Michishita M, Yoshimura H, Ochiai K, Azakami D, Ishiwata T, Takahashi K. Pancreatic Colloid Carcinoma in an Elderly Cat. J Comp Pathol 2017; 157:266-269. [DOI: 10.1016/j.jcpa.2017.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/21/2017] [Accepted: 08/30/2017] [Indexed: 11/17/2022]
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Ishimori M, Michishita M, Yoshimura H, Azakami D, Ochiai K, Ishiwata T, Takahashi K. Disseminated histiocytic sarcoma with hemophagocytosis in a rabbit. J Vet Med Sci 2017; 79:1503-1506. [PMID: 28740033 PMCID: PMC5627319 DOI: 10.1292/jvms.17-0297] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 7-year-old female domestic rabbit suffered from labored respiration, poor appetite, mild anemia and thrombocytopenia. Radioscopic examination revealed masses in multiple locations including the intrapleural cavity and spleen. Forty-three days after the first visit to a private veterinary clinic, the rabbit died of severe respiratory distress. Microscopically, all of the masses were composed of round to polygonal neoplastic cells with distinct cell borders that were arranged in a sheet pattern. Multinucleated giant neoplastic cells were often observed. Some neoplastic cells had phagocytozed one or more erythrocytes. Immunohistochemical staining revealed that the neoplastic cells expressed vimentin, CD204, Iba-1 and lysozyme, but not CD163. Based on the morphological and immunohistochemical findings, this case was diagnosed as disseminated histiocytic sarcoma with hemophagocytosis.
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Affiliation(s)
- Mio Ishimori
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Hisashi Yoshimura
- Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kazuhiko Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Kimimasa Takahashi
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
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30
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Kato Y, Ochiai K, Kawakami S, Nakao N, Azakami D, Bonkobara M, Michishita M, Morimatsu M, Watanabe M, Omi T. Canine REIC/Dkk-3 interacts with SGTA and restores androgen receptor signalling in androgen-independent prostate cancer cell lines. BMC Vet Res 2017; 13:170. [PMID: 28599655 PMCID: PMC5466802 DOI: 10.1186/s12917-017-1094-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 06/05/2017] [Indexed: 01/25/2023] Open
Abstract
Background The pathological condition of canine prostate cancer resembles that of human androgen-independent prostate cancer. Both canine and human androgen receptor (AR) signalling are inhibited by overexpression of the dimerized co-chaperone small glutamine-rich tetratricopeptide repeat-containing protein α (SGTA), which is considered to cause the development of androgen-independency. Reduced expression in immortalised cells (REIC/Dkk-3) interferes with SGTA dimerization and rescues AR signalling. This study aimed to assess the effects of REIC/Dkk-3 and SGTA interactions on AR signalling in the canine androgen-independent prostate cancer cell line CHP-1. Results Mammalian two-hybrid and Halo-tagged pull-down assays showed that canine REIC/Dkk-3 interacted with SGTA and interfered with SGTA dimerization. Additionally, reporter assays revealed that canine REIC/Dkk-3 restored AR signalling in both human and canine androgen-independent prostate cancer cells. Therefore, we confirmed the interaction between canine SGTA and REIC/Dkk-3, as well as their role in AR signalling. Conclusions Our results suggest that this interaction might contribute to the development of a novel strategy for androgen-independent prostate cancer treatment. Moreover, we established the canine androgen-independent prostate cancer model as a suitable animal model for the study of this type of treatment-refractory human cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12917-017-1094-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yuiko Kato
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan
| | - Kazuhiko Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan.
| | - Shota Kawakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan
| | - Nobuhiro Nakao
- Laboratory of Animal Physiology, School of Animal Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan
| | - Daigo Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan
| | - Makoto Bonkobara
- Department of Veterinary Clinical Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan
| | - Masami Morimatsu
- Laboratory of Laboratory Animal Science and Medicine, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8558, Japan
| | - Toshinori Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, 180-8602, Japan.
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31
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Kishimoto TE, Yashima S, Nakahira R, Onozawa E, Azakami D, Ujike M, Ochiai K, Ishiwata T, Takahashi K, Michishita M. Identification of tumor-initiating cells derived from two canine rhabdomyosarcoma cell lines. J Vet Med Sci 2017; 79:1155-1162. [PMID: 28529244 PMCID: PMC5559357 DOI: 10.1292/jvms.16-0412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Cancer stem cells or tumor-initiating cells (TICs) are a small subpopulation of cells that have the capacity to self-renew, differentiate and initiate tumors. These cells may function in tumor initiation, aggression and recurrence. Whether spheres derived from canine rhabdomyosarcoma cells have stem cell-like properties is unclear. We induced sphere formation in the canine rhabdomyosarcoma cell lines, CMS-C and CMS-J, and characterized the spheres in vitro and in vivo. Sphere-forming cells were more resistant to vincristine, mitoxantrone and doxorubicin than adherent cells. Xenograft transplantation demonstrated that 1 × 103 sphere-forming cells derived from CMS-C were sufficient for tumor formation. The sphere assay showed that the sphere-forming cells were present in these tumors. These results suggest that the spheres derived from canine rhabdomyosarcoma cells may possess characteristics of TICs. This study provides the foundation for elucidating the contribution of TICs to rhabdomyosarcoma tumorigenesis.
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Affiliation(s)
- Takuya Evan Kishimoto
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Shoko Yashima
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Rei Nakahira
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Eri Onozawa
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Makoto Ujike
- Department of Veterinary Infectious Diseases, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kazuhiko Ochiai
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Kimimasa Takahashi
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
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Azakami D, Nakahira R, Kato Y, Michishita M, Kobayashi M, Onozawa E, Bonkobara M, Kobayashi M, Takahashi K, Watanabe M, Ishioka K, Sako T, Ochiai K, Omi T. Cover Image, Volume 15, Issue 2. Vet Comp Oncol 2017. [DOI: 10.1111/vco.12268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- D. Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - R. Nakahira
- Department of Veterinary Pathology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - Y. Kato
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - M. Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - M. Kobayashi
- Department of Veterinary Clinical Pathology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - E. Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - M. Bonkobara
- Department of Veterinary Clinical Pathology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - M. Kobayashi
- Department of Reproduction, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - K. Takahashi
- Department of Veterinary Pathology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - M. Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - K. Ishioka
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - T. Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - K. Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
| | - T. Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science Nippon Veterinary and Life Science University Tokyo Japan
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Michishita M, Takagi M, Kishimoto TE, Nakahira R, Nogami T, Yoshimura H, Hatakeyama H, Azakami D, Ochiai K, Takahashi K. Pancreatic neuroendocrine carcinoma with exocrine differentiation in a young cat. J Vet Diagn Invest 2017; 29:325-330. [PMID: 28363254 DOI: 10.1177/1040638717698179] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
A 35-mo-old spayed female mixed-breed cat with continuous vomiting, emaciation, and abdominal distention for 2 wk was presented to a private veterinary clinic for evaluation. At 71 d after the initial visit, the cat died with anemia, jaundice, and hypoalbuminemia, and was subjected to autopsy. Grossly, numerous firm masses, 0.5-2.5 cm diameter, were randomly located in the left lobe of the pancreas. Histologic examination revealed that the pancreatic mass consisted of 2 tumor cell types: mostly small round cells with a minority of epithelial cells. The small cells were arranged in nests of various sizes, which were separated by thin fibrous stroma, and had small, round, hyperchromatic nuclei, scant cytoplasm containing argyrophilic granules, and often formed rosettes. The epithelial cells formed luminal structures. Metastases were observed in the liver, greater omentum, and pancreatic, gastric, pulmonary, and mediastinal lymph nodes. Immunohistochemical examination revealed that the small cells were positive for vimentin, neuron-specific enolase, chromogranin A, cytokeratin (CK) AE1/AE3, and trypsin, whereas the epithelial cells were positive for AE1/AE3, trypsin, CK19, and nestin. Ultrastructurally, the small cells contained abundant electron-dense granules, ~200 nm diameter, whereas the epithelial cells had apical microvilli and numerous zymogen granules, ~300 nm diameter. These findings indicated that the tumor was a pancreatic neuroendocrine carcinoma with exocrine differentiation and systemic metastases.
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Affiliation(s)
- Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Mariko Takagi
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Takuya E Kishimoto
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Rei Nakahira
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Takeshi Nogami
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hisashi Yoshimura
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hitoshi Hatakeyama
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kazuhiko Ochiai
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kimimasa Takahashi
- Department of Veterinary Pathology, School of Veterinary Medicine (Michishita, Takagi, Kishimoto, Nakahira, Nogami, Takahashi), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Applied Science, School of Veterinary Nursing and Technology (Yoshimura), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Comparative Cellular Biology, School of Veterinary Medicine (Hatakeyama), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Veterinary Nursing, School of Veterinary Nursing and Technology (Azakami), Nippon Veterinary and Life Science University, Tokyo, Japan.,Department of Basic Science, School of Veterinary Nursing and Technology (Ochiai), Nippon Veterinary and Life Science University, Tokyo, Japan
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Nakahira R, Michishita M, Kato M, Okuno Y, Hatakeyama H, Yoshimura H, Azakami D, Ochiai K, Bonkobara M, Takahashi K. Oncocytic carcinoma of the salivary gland in a dog. J Vet Diagn Invest 2016; 29:105-108. [PMID: 28074714 DOI: 10.1177/1040638716673126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A 3-y-old male miniature Dachshund was presented with an ~0.8 cm diameter mass in the right mandibular region. Fourteen months later, the mass was 5 × 4 × 3 cm. Grossly, the mass was encapsulated and was homogeneously gray-white on cut surface. Microscopically, the mass was composed of large, round to polygonal tumor cells that were arranged in solid nests and cords separated by a fibrovascular stroma. Tumor cells had large, round, hypochromatic nuclei containing large prominent nucleoli and abundant eosinophilic cytoplasm containing dark blue granules visible with phosphotungstic acid-hematoxylin stain. Metastasis was observed in the mandibular lymph node. Immunohistochemically, tumor cells were positive for CK AE1/AE3, low-molecular-weight CK (CAM5.2), E-cadherin, mitochondria ATPase beta subunit, and S100, but were negative for vimentin, carcinoembryonic antigen, p63, CK14, CD10, and chromogranin A. Ultrastructurally, tumor cells contained numerous mitochondria. Therefore, the tumor was diagnosed as an oncocytic carcinoma of the mandibular gland.
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Affiliation(s)
- Rei Nakahira
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Masaki Michishita
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Misaki Kato
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yuki Okuno
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hitoshi Hatakeyama
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hisashi Yoshimura
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kazuhiko Ochiai
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Makoto Bonkobara
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kimimasa Takahashi
- Departments of Veterinary Pathology (Nakahira, Michishita, Kato, Okuno, Takahashi), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Comparative Cellular Biology (Hatakeyama), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Applied Science (Yoshimura), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Nursing (Azakami), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Basic Science (Ochiai), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan.,Veterinary Clinical Pathology (Bonkobara), School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
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Ochiai K, Morimatsu M, Kato Y, Ishiguro-Oonuma T, Udagawa C, Rungsuriyawiboon O, Azakami D, Michishita M, Ariyoshi Y, Ueki H, Nasu Y, Kumon H, Watanabe M, Omi T. Tumor suppressor REIC/DKK-3 and co-chaperone SGTA: Their interaction and roles in the androgen sensitivity. Oncotarget 2016; 7:3283-96. [PMID: 26658102 PMCID: PMC4823106 DOI: 10.18632/oncotarget.6488] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/21/2015] [Indexed: 12/16/2022] Open
Abstract
REIC/DKK-3 is a tumor suppressor, however, its intracellular physiological functions and interacting molecules have not been fully clarified. Using yeast two-hybrid screening, we found that small glutamine-rich tetratricopeptide repeat-containing protein α (SGTA), known as a negative modulator of cytoplasmic androgen receptor (AR) signaling, is a novel interacting partner of REIC/DKK-3. Mammalian two-hybrid and pull-down assay results indicated that the SGTA-REIC/DKK-3 interaction involved the N-terminal regions of both REIC/DKK-3 and SGTA and that REIC/DKK-3 interfered with the dimerization of SGTA, which is a component of the AR complex and a suppressor of dynein motor-dependent AR transport and signaling. A reporter assay in human prostate cancer cells that displayed suppressed AR signaling by SGTA showed recovery of AR signaling by REIC/DKK-3 expression. Considering these results and our previous data that REIC/DKK-3 interacts with the dynein light chain TCTEX-1, we propose that the REIC/DKK-3 protein interferes with SGTA dimerization, promotes dynein-dependent AR transport and then upregulates AR signaling.
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Affiliation(s)
- Kazuhiko Ochiai
- Department of Veterinary Nursing and Technology, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Masami Morimatsu
- Laboratory of Laboratory Animal Science and Medicine, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Yuiko Kato
- Department of Veterinary Nursing and Technology, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Toshina Ishiguro-Oonuma
- Department of Biological Resources, Integrated Center for Science, Ehime University, Ehime 791-0295, Japan
| | - Chihiro Udagawa
- Department of Veterinary Nursing and Technology, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Oumaporn Rungsuriyawiboon
- Department of Veterinary Technology Faculty of Veterinary Technology, Kasetsart University, Bangkok 10900, Thailand
| | - Daigo Azakami
- Department of Veterinary Nursing and Technology, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Masaki Michishita
- Department of Veterinary Pathology, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Yuichi Ariyoshi
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Hideo Ueki
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Yasutomo Nasu
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Hiromi Kumon
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Masami Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Toshinori Omi
- Department of Veterinary Nursing and Technology, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
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Omi T, Nakazawa S, Udagawa C, Tada N, Ochiai K, Chong YH, Kato Y, Mitsui H, Gin A, Oda H, Azakami D, Tamura K, Sako T, Inagaki T, Sakamoto A, Tsutsui T, Bonkobara M, Tsuchida S, Ikemoto S. Molecular Characterization of the Cytidine Monophosphate-N-Acetylneuraminic Acid Hydroxylase (CMAH) Gene Associated with the Feline AB Blood Group System. PLoS One 2016; 11:e0165000. [PMID: 27755584 PMCID: PMC5068781 DOI: 10.1371/journal.pone.0165000] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/04/2016] [Indexed: 11/30/2022] Open
Abstract
Cat’s AB blood group system (blood types A, B, and AB) is of major importance in feline transfusion medicine. Type A and type B antigens are Neu5Gc and Neu5Ac, respectively, and the enzyme CMAH participating in the synthesis of Neu5Gc from Neu5Ac is associated with this cat blood group system. Rare type AB erythrocytes express both Neu5Gc and Neu5Ac. Cat serum contains naturally occurring antibodies against antigens occurring in the other blood types. To understand the molecular genetic basis of this blood group system, we investigated the distribution of AB blood group antigens, CMAH gene structure, mutation, diplotypes, and haplotypes of the cat CMAH genes. Blood-typing revealed that 734 of the cats analyzed type A (95.1%), 38 cats were type B (4.9%), and none were type AB. A family of three Ragdoll cats including two type AB cats and one type A was also used in this study. CMAH sequence analyses showed that the CMAH protein was generated from two mRNA isoforms differing in exon 1. Analyses of the nucleotide sequences of the 16 exons including the coding region of CMAH examined in the 34 type B cats and in the family of type AB cats carried the CMAH variants, and revealed multiple novel diplotypes comprising several polymorphisms. Haplotype inference, which was focused on non-synonymous SNPs revealed that eight haplotypes carried one to four mutations in CMAH, and all cats with type B (n = 34) and AB (n = 2) blood carried two alleles derived from the mutated CMAH gene. These results suggested that double haploids selected from multiple recessive alleles in the cat CMAH loci were highly associated with the expression of the Neu5Ac on erythrocyte membrane in types B and AB of the feline AB blood group system.
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Affiliation(s)
- Toshinori Omi
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
- * E-mail:
| | - Shota Nakazawa
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Chihiro Udagawa
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Naomi Tada
- International Institute of Small Animal Medicine (Bio Plus), AHB Inc., Tokyo, Japan
| | - Kazuhiko Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yong Hwa Chong
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yuiko Kato
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hiroko Mitsui
- International Institute of Small Animal Medicine (Bio Plus), AHB Inc., Tokyo, Japan
| | - Azusa Gin
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hitomi Oda
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kyoichi Tamura
- Department of Veterinary Clinical Pathology, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Toshinori Sako
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Takeshi Inagaki
- Department of Legal Medicine, Jichi Medical University, Tochigi, Japan
| | - Atsushi Sakamoto
- Department of Legal Medicine, Jichi Medical University, Tochigi, Japan
| | - Toshihiko Tsutsui
- International Institute of Small Animal Medicine (Bio Plus), AHB Inc., Tokyo, Japan
| | - Makoto Bonkobara
- Department of Veterinary Clinical Pathology, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Shuichi Tsuchida
- Laboratory of Comparative Cellular Biology, School of Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Shigenori Ikemoto
- School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
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Momota Y, Yasuda J, Ikezawa M, Sasaki J, Katayama M, Tani K, Miyabe M, Onozawa E, Azakami D, Ishioka K, Sako T. Proliferative and necrotizing otitis externa in a kitten: successful treatment with intralesional and topical corticosteroid therapy. J Vet Med Sci 2016; 78:1883-1885. [PMID: 27570137 PMCID: PMC5240769 DOI: 10.1292/jvms.15-0652] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Proliferative and necrotising otitis externa (PNOE) is a very rare disease affecting the
ear canals and concave pinnae of kittens. This report describes a 5-month-old cat with
PNOE. Histopathological examination confirmed the diagnosis. Treatment was initiated with
local injection of methylprednisolone acetate into the lesions. The cat was subsequently
treated with clobetasol propionate cream, a potent topical glucocorticoid ointment. The
cat showed marked improvement. While topical treatment with tacrolimus, an
immunosuppressive agent, is reported to be an effective therapy, to the best of our
knowledge, this is the first report to treat PNOE with local corticosteroid therapy.
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Affiliation(s)
- Yutaka Momota
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan
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Momota Y, Shimada K, Gin A, Matsubara T, Azakami D, Ishioka K, Nakamura Y, Sako T. Measurement of transepidermal water loss (TEWL) in cats with experimental skin barrier dysfunction using a closed chamber system. Vet Dermatol 2016; 27:428-e110. [PMID: 27492205 DOI: 10.1111/vde.12361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND A closed chamber evaporimeter is suitable for measuring transepidermal water loss (TEWL) in cats because of the compact device size, tolerance to sudden movement and short measuring time. TEWL is a representative parameter for skin barrier dysfunction, which is one of the clinical signs of atopic dermatitis in humans and dogs. Measurement of feline TEWL has been reported, but applicability of this parameter has not been validated. HYPOTHESIS/OBJECTIVES The aims of this study were to determine if tape stripping is a valid experimental model in cats for studying TEWL and to determine if a closed chambered system is a suitable measurement tool for cats. ANIMALS Ten clinically normal cats. METHODS In order to evaluate variation of the measured values, TEWL was measured at the right and left side of the three clipped regions (axillae, lateral thigh and groin). Subsequently, TEWL was measured using sequential tape stripping of the stratum corneum as a model of acute barrier disruption. RESULTS The variations between both sides of the three regions showed no significant difference. Sequential tape stripping was associated with increasing values for TEWL. CONCLUSIONS AND CLINICAL IMPORTANCE Feline TEWL was shown to reflect changes in the skin barrier in an experimental model using a closed chamber system and has the potential for evaluating skin barrier function in cats with skin diseases.
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Affiliation(s)
- Yutaka Momota
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan.
| | - Kenichiro Shimada
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Azusa Gin
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Takako Matsubara
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Daigo Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Katsumi Ishioka
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Yuka Nakamura
- Technical Information Centre, Kyoritsu Seiyaku Corporation, 1-12-4 Kudankita, Chiyoda-ku, Tokyo, 102-0073, Japan
| | - Toshinori Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
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Ochiai K, Oda H, Shono S, Kato Y, Sugihara S, Nakazawa S, Azakami D, Michishita M, Onozawa E, Bonkobara M, Sako T, Shun-Ai L, Ueki H, Watanabe M, Omi T. Properties of the feline tumour suppressor reduced expression in immortalized cells (REIC/Dkk-3). Vet Comp Oncol 2016; 15:1181-1186. [PMID: 27353749 DOI: 10.1111/vco.12254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 06/03/2016] [Accepted: 06/03/2016] [Indexed: 11/30/2022]
Abstract
Reduced expression in immortalized cells (REIC/Dkk-3), a member of the human Dickkopf (Dkk) family, is a growth suppressor in human and canine mammary tumours. Mammary gland tumours are common neoplasms with high malignancy in female cats. The purpose of this study was to clone the feline REIC/Dkk-3 homolog, investigate its expression in cell lines established from feline mammary gland tumours, and test its tumour suppressor function. Western blot analysis revealed that expression of the REIC/Dkk-3 protein was reduced in feline mammary carcinoma cell lines. Forced expression of REIC/Dkk-3 induced apoptosis in feline mammary tumour cell lines. These results demonstrate that REIC/Dkk-3 expression, which is downregulated in feline mammary tumour cell lines, results in the induction of apoptosis in these cells. Our findings suggest that feline REIC/Dkk-3 represents a potential molecular target for the development of therapies against feline mammary cancers.
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Affiliation(s)
- K Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - H Oda
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - S Shono
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Y Kato
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - S Sugihara
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - S Nakazawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - D Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Michishita
- Department of Veterinary Pathology, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - E Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Bonkobara
- Department of Veterinary Clinical Pathology, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - T Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - L Shun-Ai
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - H Ueki
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - M Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - T Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
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Azakami D, Onozawa E, Miyabe M, Ochiai K, Michishita M, Hirano T, Momota Y, Ishioka K, Sako T. Primary T-cell high-grade lymphoma of the feline uterus. J Vet Med Sci 2016; 78:913-6. [PMID: 26860355 PMCID: PMC4905855 DOI: 10.1292/jvms.15-0575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 12-year-old female American shorthair cat presented with a one-month history of hematuria and general lethargy. Abdominal ultrasonography revealed complete thickening of the left uterine wall. At a diagnostic laparotomy, a large mass arising from the left uterine horn was discovered, and ovariohysterectomy was performed. Histological diagnosis revealed a T-cell high-grade lymphoma of the uterus. After the ovariohysterectomy, the patient achieved complete remission and was maintained by combination chemotherapy from 14 days after surgery. However, relapse occurred in the urinary bladder wall on day 287, and the patient died of postrenal acute renal failure on day 310. This is the first report of a feline case of primary uterine lymphoma that was treated with ovariohysterectomy followed by systemic chemotherapy.
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Affiliation(s)
- Daigo Azakami
- Department of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
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41
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Momota Y, Shimada K, Noguchi A, Saito A, Nozawa S, Niina A, Tani K, Azakami D, Ishioka K, Sako T. The modified corneocyte surface area measurement as an index of epidermal barrier properties: inverse correlation with transepidermal water loss. Vet Dermatol 2016; 27:67-e19. [PMID: 26833405 DOI: 10.1111/vde.12287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2015] [Indexed: 12/20/2022]
Abstract
BACKGROUND Corneocyte surface area (CSA) is as established parameter for skin barrier function in humans. Measurement of canine CSA has been previously reported but has not been validated. HYPOTHESIS/OBJECTIVES The aim of this study was to evaluate the validity of CSA as a barrier function parameter in dogs. ANIMALS Six clinically normal beagle dogs. METHODS CSA was measured and compared with transepidermal water loss (TEWL) using sequential tape stripping of the stratum corneum as a model of acute barrier disruption. Then, CSA and TEWL were measured at four anatomical sites (groin, lower back, nasal bridge and pinna). The correlation between the two indices was also evaluated. RESULTS From the results of sequential tape stripping, CSA values gradually decreased with increasing number of tape strippings. The CSA values were inversely correlated with the TEWL ones. The two indices at different sites were variable and were strongly correlated. CONCLUSIONS AND CLINICAL IMPORTANCE Canine CSA was demonstrated to be a useful parameter for the canine skin barrier function. The results from the anatomical sites imply that the cephalic sites (nasal bridge and pinna) were lower than others in skin barrier function.
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Affiliation(s)
- Yutaka Momota
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Kenichiro Shimada
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Azusa Noguchi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Akio Saito
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Satoshi Nozawa
- Laboratory of Biomolecular Chemistry, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Ayaka Niina
- Veterinary Medical Teaching Hospital, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Kenji Tani
- Department of Veterinary Surgery, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Daigo Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Katsumi Ishioka
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
| | - Toshinori Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo, 180-8602, Japan
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Azakami D, Nakahira R, Kato Y, Michishita M, Kobayashi M, Onozawa E, Bonkobara M, Kobayashi M, Takahashi K, Watanabe M, Ishioka K, Sako T, Ochiai K, Omi T. The canine prostate cancer cell line CHP-1 shows over-expression of the co-chaperone small glutamine-rich tetratricopeptide repeat-containing protein α. Vet Comp Oncol 2016; 15:557-562. [PMID: 26762899 DOI: 10.1111/vco.12199] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/27/2015] [Accepted: 10/28/2015] [Indexed: 12/17/2022]
Abstract
Although androgen therapy resistance and poor clinical outcomes are seen in most canine prostate cancer cases, there are only a few tools for analysing canine prostate cancer by using a cell biological approach. Therefore, to evaluate androgen-independent neoplastic cell growth, a new canine prostate cancer cell line (CHP-1) was established in this study. CHP-1 over-expressed the co-chaperone small glutamine-rich tetratricopeptide repeat-containing protein α (SGTA), which is over-expressed in human androgen-independent prostate cancer. The CHP-1 xenograft also showed SGTA over-expression. Although CHP-1 shows poor androgen receptor (AR) signalling upon dihydrotestosterone stimulation, forced expression of AR enabled evaluation of AR signalling. Taken together, these results suggest that CHP-1 will be a useful model for investigating the pathogenesis of androgen-dependent and androgen-independent canine prostate cancer.
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Affiliation(s)
- D Azakami
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - R Nakahira
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Y Kato
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Kobayashi
- Department of Veterinary Clinical Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - E Onozawa
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Bonkobara
- Department of Veterinary Clinical Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Kobayashi
- Department of Reproduction, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - K Takahashi
- Department of Veterinary Pathology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - M Watanabe
- Department of Urology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - K Ishioka
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - T Sako
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - K Ochiai
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - T Omi
- School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
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43
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Nozawa S, Kimura T, Kurishima M, Mimura K, Saeki K, Miki Y, Oda H, Mori A, Momota Y, Azakami D, Ishioka K. Analyses of a satiety factor NUCB2/nesfatin-1; gene expressions and modulation by different dietary components in dogs. J Vet Med Sci 2015; 78:411-7. [PMID: 26596634 PMCID: PMC4829508 DOI: 10.1292/jvms.15-0255] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Nesfatin-1 is an anorexic peptide derived from a precursor, nucleobindin-2 (NUCB2), which
is distributed in various organs, coexists with ghrelin in the gastric X/A-like cells and
closely relates to an appetite control in rodents and humans. Nesfatin-1 may be a
significant factor addressing the satiety also in veterinary medicine, however, there are
few reports about nesfatin-1 in dogs. In the present study, we detected canine
NUCB2/nesfatin-1 mRNA in various tissues, especially abundant in pancreas,
gastrointestinal tracts, testis and cerebellum. We examined circulating nesfatin-1
concentrations and NUCB2/nesfatin-1 mRNA expressions in upper gastrointestinal tracts
(gastric corpus, pyloric antrum and duodenum) in dogs fed on different types of diets.
Plasma nesfatin-1 concentrations in the dogs were approximately 4
ng/ml and they did not change after feeding through
the study, however, NUCB2/nesfatin-1 mRNA expressions in pyloric antrum were 1.84-fold
higher in the dogs fed on a High fiber/High protein diet (P<0.001),
1.48-fold higher in the dogs fed on a High fat/Low protein diet
(P<0.05) and 1.02-fold higher in the dogs fed on a Low fat/High
carbohydrate diet (not significant) comparing to those on a control diet. It was concluded
that High fiber/High protein and High fat/Low protein diets increased NUCB2/nesfatin-1
production in canine gastrointestinal tracts. These results may set the stage for further
investigations of canine NUCB2/nesfatin-1, which may relate to satiety effects in
dogs.
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Affiliation(s)
- Satoshi Nozawa
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
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Miyabe M, Gin A, Onozawa E, Daimon M, Yamada H, Oda H, Mori A, Momota Y, Azakami D, Yamamoto I, Mochizuki M, Sako T, Tamura K, Ishioka K. Genetic variants of the unsaturated fatty acid receptor GPR120 relating to obesity in dogs. J Vet Med Sci 2015; 77:1201-6. [PMID: 25960032 PMCID: PMC4638284 DOI: 10.1292/jvms.15-0031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
G protein-coupled receptor (GPR) 120 is an unsaturated fatty acid receptor, which is
associated with various physiological functions. It is reported that the genetic variant
of GPR120, p.Arg270His, is detected more in obese people, and this genetic variation
functionally relates to obesity in humans. Obesity is a common nutritional disorder also
in dogs, but the genetic factors have not ever been identified in dogs. In this study, we
investigated the molecular structure of canine GPR120 and searched for candidate genetic
variants which may relate to obesity in dogs. Canine GPR120 was highly homologous to those
of other species, and seven transmembrane domains and two N-glycosylation sites were
conserved. GPR120 mRNA was expressed in lung, jejunum, ileum, colon, hypothalamus,
hippocampus, spinal cord, bone marrow, dermis and white adipose tissues in dogs, as those
in mice and humans. Genetic variants of GPR120 were explored in client-owned 141 dogs,
resulting in that 5 synonymous and 4 non-synonymous variants were found. The variant
c.595C>A (p.Pro199Thr) was found in 40 dogs, and the gene frequency was significantly
higher in dogs with higher body condition scores, i.e. 0.320 in BCS4–5 dogs, 0.175 in BCS3
dogs and 0.000 in BCS2 dogs. We conclude that c.595C>A (p.Pro199Thr) is a candidate
variant relating to obesity, which may be helpful for nutritional management of dogs.
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Affiliation(s)
- Masahiro Miyabe
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
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Nozawa S, Oda H, Akiyama R, Ueda K, Saeki K, Shono S, Maruyama N, Murata A, Tazaki H, Mori A, Momota Y, Azakami D, Sako T, Ishioka K. Decreased gene expressions of insulin signal molecules in canine hyperadrenocorticism. J Vet Med Sci 2014; 76:1177-82. [PMID: 24829079 PMCID: PMC4155204 DOI: 10.1292/jvms.14-0033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hyperadrenocorticism (HAC) is a common endocrine disorder in dogs, in which excess glucocorticoid causes insulin resistance. Disturbance of insulin action may be caused by multiple factors, including transcriptional modulation of insulin signal molecules which lie downstream of insulin binding to insulin receptors. In this study, gene expressions of insulin signal molecules were examined using neutrophils of the HAC dogs (the untreated dogs and the dogs which had been treated with trilostane). Insulin receptor substrate (IRS)-1, IRS-2, phosphatidylinositol 3-kinase (PI3-K), protein kinase B/Akt kinase (Akt)-2 and protein kinase C (PKC)-lambda were analyzed in the HAC dogs and compared with those from normal dogs. The IRS-1 gene expressions decreased by 37% and 35% of the control dogs in the untreated and treated groups, respectively. The IRS-2 gene expressions decreased by 61% and 72%, the PI3-K gene expressions decreased by 47% and 55%, and the Akt-2 gene expressions decreased by 45% and 56% of the control dogs, similarly. Collectively, gene expressions of insulin signal molecules are suppressed in the HAC dogs, which may partially contribute to the induction of insulin resistance.
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Affiliation(s)
- Satoshi Nozawa
- Laboratory of Biomolecular Chemistry, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
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Michishita M, Ezaki S, Ogihara K, Naya Y, Azakami D, Nakagawa T, Sasaki N, Arai T, Shida T, Takahashi K. Identification of tumor-initiating cells in a canine hepatocellular carcinoma cell line. Res Vet Sci 2014; 96:315-22. [PMID: 24534130 DOI: 10.1016/j.rvsc.2014.01.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 12/13/2013] [Accepted: 01/26/2014] [Indexed: 12/27/2022]
Abstract
Tumor-initiating cells (TICs) or cancer stem cells (CSCs), a small subset of tumor cells, are involved in tumor initiation, progression, recurrence and metastasis. In human hepatocellular carcinoma (HCC), TICs are enriched with cell surface markers and have the ability to self-renew and differentiate tumors at a high frequency. We established a canine HCC cell line, HCC930599, and analyzed it for stem and progenitor cell marker expression using flow cytometry. HCC930599 showed high CD44 and CD29, moderate CD90, and low CD133, CD34, CD24, CD117, and CD13 expression. CD90(+)CD44(+) and CD90(-)CD44(+) cells were characterized using the in vitro sphere assay and an in vivo transplant model. CD90(+)CD44(+) cells acquired enhanced self-renewal capacity, proliferative activity and tumourigenicity compared with CD90(-)CD44(+) cells, suggesting that TICs exist in the HCC930599 cell line and that CD90 is a marker for enriched TICs. Understanding TIC characteristics may help elucidate hepatic carcinogenesis and HCC therapy development.
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Affiliation(s)
- Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan.
| | - Shiori Ezaki
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kikumi Ogihara
- Department of Pathology, School of Life and Environmental Science, Azabu University, 1-17-7 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Yuko Naya
- Department of Pathology, School of Life and Environmental Science, Azabu University, 1-17-7 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan
| | - Nobuo Sasaki
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan
| | - Toshiro Arai
- Department of Veterinary Biochemistry, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
| | - Takuo Shida
- Laboratory of Veterinary Radiology, School of Veterinary Medicine, Azabu University, 1-17-7 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Kimimasa Takahashi
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
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Momota Y, Shimada K, Takami A, Akaogi H, Takasaki M, Mimura K, Azakami D, Ishioka K, Nakamura Y, Sako T. Transepidermal water loss in cats: comparison of three differently clipped sites to assess the influence of hair coat on transepidermal water loss values. Vet Dermatol 2013; 24:450-2, e100-1. [DOI: 10.1111/vde.12050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Yutaka Momota
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Kenichiroh Shimada
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Akina Takami
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Harumi Akaogi
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Mariko Takasaki
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Kana Mimura
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Daigo Azakami
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Katsumi Ishioka
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
| | - Yuka Nakamura
- Technical Information Centre; Kyoritsu Seiyaku Corporation; 1-12-4 Kudankita; Chiyoda-ku; Tokyo; 102-0073; Japan
| | - Toshinori Sako
- School of Veterinary Nursing and Technology; Faculty of Veterinary Science; Nippon Veterinary and Life Science University; 1-7-1 Kyonancho; Musashino; Tokyo; 180-8602; Japan
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48
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Ochiai K, Watanabe M, Azakami D, Michishita M, Yoshikawa Y, Udagawa C, Metheenukul P, Chahomchuen T, Aoki H, Kumon H, Morimatsu M, Omi T. Molecular cloning and tumour suppressor function analysis of canine REIC/Dkk-3 in mammary gland tumours. Vet J 2013; 197:769-75. [PMID: 23732075 DOI: 10.1016/j.tvjl.2013.04.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Revised: 04/24/2013] [Accepted: 04/28/2013] [Indexed: 11/29/2022]
Abstract
REIC/Dkk-3, a member of the human Dickkopf (Dkk) family, plays a role as a suppressor of growth in several human cancers. In this study, the tumour suppression function of canine REIC/Dkk-3 was investigated. The full-length open reading frame of the canine REIC/Dkk-3 homologue was cloned and the tissue distribution of REIC/Dkk-3 mRNA was determined, along with the subcellular localisation of the REIC/Dkk-3 protein in canine cancer cell lines. Expression of REIC/Dkk-3 was lower in mammary gland tumours and in canine mammary carcinoma cell lines than in normal mammary gland tissue. Overexpression of REIC/Dkk-3 induced apoptosis in canine mammary carcinoma cell lines. These results show that expression of REIC/Dkk-3 is downregulated in canine mammary tumours and that one of the functions of this gene is induction of apoptosis.
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Affiliation(s)
- Kazuhiko Ochiai
- Department of Veterinary Nursing and Technology, School of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan.
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49
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Michishita M, Uto T, Nakazawa R, Yoshimura H, Ogihara K, Naya Y, Tajima T, Azakami D, Kishikawa S, Arai T, Takahashi K. Antitumor effect of bevacizumab in a xenograft model of canine hemangiopericytoma. J Pharmacol Sci 2013; 121:339-42. [PMID: 23514785 DOI: 10.1254/jphs.12268sc] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Canine hemangiopericytoma (CHP) is characterized by frequent local recurrence and increased invasiveness. Vascular endothelial growth factor (VEGF) is a key regulator of angiogenesis in tumors. The aim of the present study was to investigate the effect of a single dose of bevacizumab on a xenograft model of CHP. VEGF protein was secreted from cultured CHP cells and interacted with bevacizumab. Bevacizumab treatment suppressed tumor growth by inhibiting tumor angiogenesis, whereas no significant differences were observed in the proliferation index and apoptosis rates of treated and untreated mice. Thus, bevacizumab had antitumor effects in a xenograft model of CHP.
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Affiliation(s)
- Masaki Michishita
- Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Japan.
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50
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Azakami D, Shibutani H, Dohi M, Takasaki M, Ishioka K, Mori A, Momota Y, Bonkobara M, Washizu T, Michishita M, Hatakeyama H, Ogasawara S, Sako T. Establishment and characterization of canine rhabdomyosarcoma cell line CMS-C. J Vet Med Sci 2011; 73:1105-8. [PMID: 21519159 DOI: 10.1292/jvms.10-0436] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A novel canine tumor cell line designated as the CMS-C cell line was established from pleomorphic rhabdomyosarcoma (RMS) raised in the prostate gland of a 14-year-old intact male mixed-breed dog. CMS-C cells displayed the same immunohistochemical characteristics (positive for vimentin and desmin and negative for cytokeratin and smooth muscle actin) as the original tumor cells and express myoD1 and UCP3, known as striated muscle-specific molecules, as shown by RT-PCR assay. Therefore, the established CMS-C cell line appears to be of rhabdomyoblast cell origin. The CMS-C cell line established from pleomorphic RMS will be a useful tool for further studies about canine RMS.
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Affiliation(s)
- Daigo Azakami
- Department of Veterinary Nursing, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1–7–1 Kyonan-cho, Musashino, Tokyo 180–8602, Japan.
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