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Miyanishi K, Igase M, Murakami M, Sakai Y, Sakurai M, Tani K, Motegi T, Mizuno T. Establishment of a novel canine soft tissue sarcoma cell line and comparison of its characteristics with other soft tissue sarcoma cell lines. Res Vet Sci 2024; 171:105245. [PMID: 38554610 DOI: 10.1016/j.rvsc.2024.105245] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/19/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
Soft tissue sarcoma (STS) is a relatively common tumor in dogs. However, very few canine STS cell lines are available. This study aimed to establish a new cell line, STS-YU1, derived from a recurrence of myxosarcoma in an 11-year-old mixed-breed dog. We examined STS-YU1 for in vitro cell proliferation, migration, anticancer drug sensitivity, transcriptome analysis using next-generation sequencing (RNA-seq), and in vivo tumorigenicity in mice and compared it with previously established STS cell lines, MUMA-G and A72. The cell proliferation and migration of STS-YU1 were higher than MUMA-G although MUMA-G only exhibited tumorigenicity in mice. STS-YU1 showed dose-dependent cytotoxicity to anticancer drugs, but with weak effects. RNA-seq analysis revealed the molecular phenotype of STS-YU1 was different from that of a previously reported cell line, A72. Hence, the use of STS-YU1 would help in efficient drug screening against canine STS in vitro.
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Affiliation(s)
- Kyohei Miyanishi
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Mami Murakami
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Kenji Tani
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan
| | - Tomoki Motegi
- Section of Computational Biomedicine, Boston University Chobanian & Avedisian School of Medicine, 72 East Concord Street E6, Boston, MA 02118, USA
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan.
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Cavoto G, Chakraborty R, Doinaki A, Dutsov C, Giovannozzi M, Hume T, Kirch K, Michielsen K, Morvaj L, Papa A, Renga F, Sakurai M, Schmidt-Wellenburg P. Anomalous spin precession systematic effects in the search for a muon EDM using the frozen-spin technique. Eur Phys J C Part Fields 2024; 84:262. [PMID: 38487792 PMCID: PMC10933177 DOI: 10.1140/epjc/s10052-024-12604-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 02/22/2024] [Indexed: 03/17/2024]
Abstract
At the Paul Scherrer Institut (PSI), we are developing a high-precision apparatus with the aim of searching for the muon electric dipole moment (EDM) with unprecedented sensitivity. The underpinning principle of this experiment is the frozen-spin technique, a method that suppresses the spin precession due to the anomalous magnetic moment, thereby enhancing the signal-to-noise ratio for EDM signals. This increased sensitivity enables measurements that would be difficult to achieve with conventional g - 2 muon storage rings. Given the availability of the 125 MeV / c muon beam at PSI, the anticipated statistical sensitivity for the EDM after a year of data collection is 6 × 10 - 23 e · cm . To achieve this goal, it is imperative to do a detailed analysis of any potential spurious effects that could mimic EDM signals. In this study, we present a quantitative methodology to evaluate the systematic effects that might arise in the context of the frozen-spin technique utilised within a compact storage ring. Our approach involves the analytical derivation of equations governing the motion of the muon spin in the electromagnetic (EM) fields intrinsic to the experimental setup, validated through numerical simulations. We also illustrate a method to calculate the cumulative geometric (Berry's) phase. This work complements ongoing experimental efforts to detect a muon EDM at PSI and contributes to a broader understanding of spin-precession systematic effects.
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Affiliation(s)
- G. Cavoto
- Istituto Nazionale di Fisica Nucleare, Sez. di Roma, P.le A. Moro 2, 00185 Rome, Italy
| | | | - A. Doinaki
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- ETH Zürich, 8092 Zurich, Switzerland
| | - C. Dutsov
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - M. Giovannozzi
- CERN Beams Department, Esplanade des Particules 1, 1211 Meyrin, Switzerland
| | - T. Hume
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- ETH Zürich, 8092 Zurich, Switzerland
| | - K. Kirch
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- ETH Zürich, 8092 Zurich, Switzerland
| | - K. Michielsen
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- ETH Zürich, 8092 Zurich, Switzerland
- École Polytechnique, Route de Saclay, 91128 Palaiseau Cedex, France
| | - L. Morvaj
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - A. Papa
- Istituto Nazionale di Fisica Nucleare, Sez. di Pisa, Largo B. Pontecorvo 3, 56127 Pisa, Italy
| | - F. Renga
- Istituto Nazionale di Fisica Nucleare, Sez. di Roma, P.le A. Moro 2, 00185 Rome, Italy
| | - M. Sakurai
- ETH Zürich, 8092 Zurich, Switzerland
- Present Address: University College London, Gower Street, London, WC1E 6BT UK
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Ngo MH, AbuEed L, Kawasaki J, Oishi N, Pramono D, Kimura T, Sakurai M, Watanabe K, Mizukami Y, Ochi H, Anai Y, Odahara Y, Umehara D, Kawamura M, Watanabe S, Miyake A, Nishigaki K. Multiple recombination events between endogenous retroviral elements and feline leukemia virus. J Virol 2024; 98:e0140023. [PMID: 38240589 PMCID: PMC10878261 DOI: 10.1128/jvi.01400-23] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/19/2023] [Indexed: 02/21/2024] Open
Abstract
Feline leukemia virus (FeLV) is an exogenous retrovirus that causes malignant hematopoietic disorders in domestic cats, and its virulence may be closely associated with viral sequences. FeLV is classified into several subgroups, including A, B, C, D, E, and T, based on viral receptor interference properties or receptor usage. However, the transmission manner and disease specificity of the recombinant viruses FeLV-D and FeLV-B remain unclear. The aim of this study was to understand recombination events between exogenous and endogenous retroviruses within a host and elucidate the emergence and transmission of recombinant viruses. We observed multiple recombination events involving endogenous retroviruses (ERVs) in FeLV from a family of domestic cats kept in one house; two of these cats (ON-T and ON-C) presented with lymphoma and leukemia, respectively. Clonal integration of FeLV-D was observed in the ON-T case, suggesting an association with FeLV-D pathogenesis. Notably, the receptor usage of FeLV-B observed in ON-T was mediated by feline Pit1 and feline Pit2, whereas only feline Pit1 was used in ON-C. Furthermore, XR-FeLV, a recombinant FeLV containing an unrelated sequence referred to the X-region, which is homologous to a portion of the 5'-leader sequence of Felis catus endogenous gammaretrovirus 4 (FcERV-gamma4), was isolated. Genetic analysis suggested that most recombinant viruses occurred de novo; however, the possibility of FeLV-B transmission was also recognized in the family. This study demonstrated the occurrence of multiple recombination events between exogenous and endogenous retroviruses in domestic cats, highlighting the contribution of ERVs to pathogenic recombinant viruses.IMPORTANCEFeline leukemia virus subgroup A (FeLV-A) is primarily transmitted among cats. During viral transmission, genetic changes in the viral genome lead to the emergence of novel FeLV subgroups or variants with altered virulence. We isolated three FeLV subgroups (A, B, and D) and XR-FeLV from two cats and identified multiple recombination events in feline endogenous retroviruses (ERVs), such as enFeLV, ERV-DC, and FcERV-gamma4, which are present in the cat genome. This study highlights the pathogenic contribution of ERVs in the emergence of FeLV-B, FeLV-D, and XR-FeLV in a feline population.
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Affiliation(s)
- Minh Ha Ngo
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Loai AbuEed
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Junna Kawasaki
- Faculty of Science and Engineering, Waseda University, Okubo, Shinjuku-ku, Tokyo, Japan
| | | | - Didik Pramono
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Tohru Kimura
- Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Kenji Watanabe
- Institute of Gene Research, Science Research Center, Yamaguchi University, Minami-kogushi, Ube, Japan
| | - Yoichi Mizukami
- Institute of Gene Research, Science Research Center, Yamaguchi University, Minami-kogushi, Ube, Japan
| | - Haruyo Ochi
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Yukari Anai
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Yuka Odahara
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Daigo Umehara
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Maki Kawamura
- Life Science Division, Advanced Technology Institute, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Shinya Watanabe
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Ariko Miyake
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Kazuo Nishigaki
- Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
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Sakurai M, Takenaka M, Mitsui Y, Sakai Y, Morimoto M. Prednisolone improves hippocampal regeneration after trimethyltin-induced neurodegeneration in association with prevention of T lymphocyte infiltration. Neuropathology 2024; 44:21-30. [PMID: 37288771 DOI: 10.1111/neup.12926] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 06/09/2023]
Abstract
The endogenous regenerative capacity of the brain is quite weak; however, a regenerative reaction, the production of new neurons (neurogenesis), has been reported to occur in brain lesions. In addition, leukocytes are well known to infiltrate brain lesions. Therefore, leukocytes would also have a link with regenerative neurogenesis; however, their role has not been fully elucidated. In this study, we investigated leukocyte infiltration and its influence on brain tissue regeneration in a trimethyltin (TMT)-injected mouse model of hippocampal regeneration. Immunohistochemically, CD3-positive T lymphocytes were found in the hippocampal lesion of TMT-injected mice. Prednisolone (PSL) treatment inhibited T lymphocyte infiltration and increased neuronal nuclei (NeuN)-positive mature neurons and doublecortin (DCX)-positive immature neurons in the hippocampus. Investigation of bromodeoxyuridine (BrdU)-labeled newborn cells revealed the percentage of BrdU/NeuN- and BrdU/DCX-positive cells increased by PSL treatment. These results indicate that infiltrated T lymphocytes prevent brain tissue regeneration by inhibiting hippocampal neurogenesis.
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Affiliation(s)
- Masashi Sakurai
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Miki Takenaka
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yuki Mitsui
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yusuke Sakai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masahiro Morimoto
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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Sakai Y, Mura S, Kuwabara Y, Kagimoto S, Sakurai M, Morimoto M, Park ES, Shimojima M, Nagata N, Ami Y, Yoshikawa T, Iwata-Yoshikawa N, Fukushi S, Watanabe S, Kurosu T, Okutani A, Kimura M, Imaoka K, Saijo M, Morikawa S, Suzuki T, Maeda K. Lethal severe fever with thrombocytopenia syndrome virus infection causes systemic germinal centre failure and massive T cell apoptosis in cats. Front Microbiol 2024; 14:1333946. [PMID: 38249467 PMCID: PMC10796997 DOI: 10.3389/fmicb.2023.1333946] [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: 11/06/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction Severe fever with thrombocytopenia syndrome (SFTS) is a fatal viral disease characterized by high fever, thrombocytopenia, leukopenia, and multi-organ haemorrhage. Disruption of the humoral immune response and decreased lymphocyte numbers are thought to contribute to the disease severity. These findings have been obtained through the analysis of peripheral blood leukocytes in human patients, whereas analysis of lymph nodes has been limited. Thus, in this study, we characterized the germinal centre response and apoptosis in the lymph nodes of cats with fatal SFTS, because SFTS in cats well mimics the pathology of human SFTS. Methods Lymph node tissue sections collected during necropsy from seven fatal SFTS patients and five non-SFTS cases were used for histopathological analysis. Additionally, lymph node tissue sections collected from cats with experimental infection of SFTS virus (SFTSV) were also analysed. Results In the lymphoid follicles of cats with SFTS, a drastic decrease in Bcl6- and Ki67-positive germinal centre B cells was observed. Together, the number of T cells in the follicles was also decreased in SFTS cases. In the paracortex, a marked increase in cleaved-caspase3 positivity was observed in T cells. These changes were independent of the number of local SFTS virus-positive cell. Furthermore, the analysis of cats with experimental SFTSV infection revealed that the intrafollicular Bcl6- and CD3-positive cell numbers in cats with low anti-SFTSV antibody production were significantly lower than those in cats with high anti-SFTSV antibody production. Discussion These results suggest that dysfunction of the humoral response in severe SFTS was caused by the loss of germinal centre formation and massive apoptosis of T cells in the lymph nodes due to systemically circulating viruses.
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Affiliation(s)
- Yusuke Sakai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Serina Mura
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yuko Kuwabara
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Saya Kagimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masahiro Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Eun-sil Park
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Shimojima
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Noriyo Nagata
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yasushi Ami
- Management Department of Biosafety and Laboratory Animal, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomoki Yoshikawa
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Shuetsu Fukushi
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shumpei Watanabe
- Faculty of Veterinary Medicine, Okayama University of Science, Ehime, Japan
| | - Takeshi Kurosu
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Akiko Okutani
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masanobu Kimura
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| | - Koichi Imaoka
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masayuki Saijo
- Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shigeru Morikawa
- Faculty of Veterinary Medicine, Okayama University of Science, Ehime, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Ken Maeda
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
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Wada N, Ushiroda S, Satoh R, Sakurai M, Kawada S, Luziga C, Ichikawa H. Allometric scaling of skin weight and thickness to body weight in relation to taxonomic orders and habitats in mammals. Anat Histol Embryol 2024; 53:e12967. [PMID: 37767821 DOI: 10.1111/ahe.12967] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Skin is the largest organ in a mammal body, and it exhibits most significant range of adaptations to different habitats. It is a complex, biological composite structure, consisting of epidermis, dermis and subcutaneous tissues and is used for the therapeutic application of medical devices to improve healthcare. Extensive studies have been performed on the roles of the skin; however, little is known on its physiological characteristics in relation to body size among different species. The purpose of this study was therefore to evaluate the allometric scaling of skin weight (SW) and thickness (ST) to body weight (BW) in relation to genetics and habitats. Also analysed the relationship of BW to thicknesses of epidermis, dermis and subcutaneous tissues. This study used 249 adult animals of both sexes, belonging to 144 species, clustered in 18 taxonomic orders and five types of habitats. The animals were obtained from various sources in Japan. SW and BW were weighed, and ST was measured using a calliper followed by data analysis. Results showed that SW and ST were related to BW [log SW = 0.969 × logBW - 0636, adjust. R2 : 0.975]. The BW increased with increasing skin dermal thickness (y = 0.3916x + 1.5253, adjust. R2 : 0.6921), slightly with epidermal thickness (y = 0.2495x + 0.3984, adjust. R2 : 0.3402), but not all with the thickness of subcutaneous tissues (y = 0.1454x + 2.2437, adjust. R2 : 0.0752). The ratio of SW to BW (SW/BW) distributed over a large range from 0.06 to 0.64 values and varied among animal taxonomic orders and their dwelling habitats. Close relationship of BW to SW/BW was observed in species weighing ≥200 g but not in species weighing <200 g. In conclusion, SW and ST in mammals are determined by BW. The SW/BW varies based on BW, taxonomic orders and habitat and is large in small mammals weighing ≥200 g to provide a mechanism used for survival strategy.
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Affiliation(s)
- Naomi Wada
- Department of Animal System Physiology, Yamaguchi University, Yamaguchi, Japan
| | - Saki Ushiroda
- Department of Animal System Physiology, Yamaguchi University, Yamaguchi, Japan
| | - Ran Satoh
- Department of Animal System Physiology, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Department of Veterinary Pathology, Yamaguchi University, Yamaguchi, Japan
| | | | - Claudius Luziga
- Department of Veterinary Anatomy and Pathology, College of Veterinary and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
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Igase M, Inanaga S, Nishibori S, Itamoto K, Sunahara H, Nemoto Y, Tani K, Horikirizono H, Nakaichi M, Baba K, Kambayashi S, Okuda M, Sakai Y, Sakurai M, Kato M, Tsukui T, Mizuno T. Proof-of-concept study of the caninized anti-canine programmed death 1 antibody in dogs with advanced non-oral malignant melanoma solid tumors. J Vet Sci 2024; 25:e15. [PMID: 38311328 PMCID: PMC10839171 DOI: 10.4142/jvs.23144] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 12/09/2023] [Accepted: 12/17/2023] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND The anti-programmed death 1 (PD-1) antibody has led to durable clinical responses in a wide variety of human tumors. We have previously developed the caninized anti-canine PD-1 antibody (ca-4F12-E6) and evaluated its therapeutic properties in dogs with advance-staged oral malignant melanoma (OMM), however, their therapeutic effects on other types of canine tumors remain unclear. OBJECTIVE The present clinical study was carried out to evaluate the safety profile and clinical efficacy of ca-4F12-E6 in dogs with advanced solid tumors except for OMM. METHODS Thirty-eight dogs with non-OMM solid tumors were enrolled prospectively and treated with ca-4F12-E6 at 3 mg/kg every 2 weeks of each 10-week treatment cycle. Adverse events (AEs) and treatment efficacy were graded based on the criteria established by the Veterinary Cooperative Oncology Group. RESULTS One dog was withdrawn, and thirty-seven dogs were evaluated for the safety and efficacy of ca-4F12-E6. Treatment-related AEs of any grade occurred in 13 out of 37 cases (35.1%). Two dogs with sterile nodular panniculitis and one with myasthenia gravis and hypothyroidism were suspected of immune-related AEs. In 30 out of 37 dogs that had target tumor lesions, the overall response and clinical benefit rates were 6.9% and 27.6%, respectively. The median progression-free survival and overall survival time were 70 days and 215 days, respectively. CONCLUSIONS The present study demonstrated that ca-4F12-E6 was well-tolerated in non-OMM dogs, with a small number of cases showing objective responses. This provides evidence supporting large-scale clinical trials of anti-PD-1 antibody therapy in dogs.
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Affiliation(s)
- Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Sakuya Inanaga
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Shoma Nishibori
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Kazuhito Itamoto
- Laboratory of Veterinary Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Hiroshi Sunahara
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Yuki Nemoto
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Kenji Tani
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Hiro Horikirizono
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Munekazu Nakaichi
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Kenji Baba
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Satoshi Kambayashi
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Masaru Okuda
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Masahiro Kato
- Nippon Zenyaku Kogyo Co., Ltd., Koriyama, Fukushima 963-0196, Japan
| | - Toshihiro Tsukui
- Nippon Zenyaku Kogyo Co., Ltd., Koriyama, Fukushima 963-0196, Japan
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan.
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Miyanishi K, Nururrozi A, Igase M, Tanabe M, Sakurai M, Sakai Y, Shimonohara N, Murakami M, Mizuno T. Activation of the Akt signalling pathway as a prognostic indicator in canine soft tissue sarcoma. J Comp Pathol 2023; 206:44-52. [PMID: 37839309 DOI: 10.1016/j.jcpa.2023.08.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/18/2023] [Accepted: 08/31/2023] [Indexed: 10/17/2023]
Abstract
Canine soft tissue sarcoma (STS) is relatively common in dogs and is the generic term for tumours that originate from mesenchymal cells. While histopathological grade and immunolabelling with Ki-67 have been used for estimating prognosis, additional indicators are needed for predicting prognosis. Aberrant cell signalling pathways may contribute to disease activity and, therefore, prognostic markers. However, their role in canine STS remains poorly understood. The aim of this study was to investigate expression of phosphorylated Akt (phospho-Akt) and phosphorylated S6 (phospho-S6) as potential prognostic indicators. Immunohistochemical labelling was conducted on clinical samples of canine STS (n = 67). We found that phospho-Akt expression was positively correlated with histopathological grade (P = 0.001) and Ki-67 index (P <0.01). There was no apparent relationship between the type of STS and the expression of phospho-Akt. The number of cases that expressed phospho-S6, which is the downstream molecule of the Akt signalling pathway, was higher in immunopositive phospho-Akt cases than in immunonegative phospho-Akt cases (P <0.0001). Furthermore, phospho-Akt expression was significantly higher in recurrent and metastatic cases. We also confirmed that phosphorylation of Akt occurred in conjunction with S6 phosphorylation in three canine STS cell lines. These results suggest that immunolabelling for phospho-Akt, phospho-S6 and Ki-67 could potentially be used as a prognostic indicator and therapeutic target in canine STS.
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Affiliation(s)
- Kyohei Miyanishi
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Alfarisa Nururrozi
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Mika Tanabe
- Veterinary Pathology Diagnostic Center, Fukuoka, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | | | - Mami Murakami
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Gifu University, Gifu, Japan
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan.
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9
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Kaptoge S, Seshasai SRK, Sun L, Walker M, Bolton T, Spackman S, Ataklte F, Willeit P, Bell S, Burgess S, Pennells L, Altay S, Assmann G, Ben-Shlomo Y, Best LG, Björkelund C, Blazer DG, Brenner H, Brunner EJ, Dagenais GR, Cooper JA, Cooper C, Crespo CJ, Cushman M, D'Agostino RB, Daimon M, Daniels LB, Danker R, Davidson KW, de Jongh RT, Donfrancesco C, Ducimetiere P, Elders PJM, Engström G, Ford I, Gallacher I, Bakker SJL, Goldbourt U, de La Cámara G, Grimsgaard S, Gudnason V, Hansson PO, Imano H, Jukema JW, Kabrhel C, Kauhanen J, Kavousi M, Kiechl S, Knuiman MW, Kromhout D, Krumholz HM, Kuller LH, Laatikainen T, Lowler DA, Meyer HE, Mukamal K, Nietert PJ, Ninomiya T, Nitsch D, Nordestgaard BG, Palmieri L, Price JF, Ridker PM, Sun Q, Rosengren A, Roussel R, Sakurai M, Salomaa V, Schöttker B, Shaw JE, Strandberg TE, Sundström J, Tolonen H, Tverdal A, Verschuren WMM, Völzke H, Wagenknecht L, Wallace RB, Wannamethee SG, Wareham NJ, Wassertheil-Smoller S, Yamagishi K, Yeap BB, Harrison S, Inouye M, Griffin S, Butterworth AS, Wood AM, Thompson SG, Sattar N, Danesh J, Di Angelantonio E, Tipping RW, Russell S, Johansen M, Bancks MP, Mongraw-Chaffin M, Magliano D, Barr ELM, Zimmet PZ, Knuiman MW, Whincup PH, Willeit J, Willeit P, Leitner C, Lawlor DA, Ben-Shlomo Y, Elwood P, Sutherland SE, Hunt KJ, Cushman M, Selmer RM, Haheim LL, Ariansen I, Tybjaer-Hansen A, Frikkle-Schmidt R, Langsted A, Donfrancesco C, Lo Noce C, Balkau B, Bonnet F, Fumeron F, Pablos DL, Ferro CR, Morales TG, Mclachlan S, Guralnik J, Khaw KT, Brenner H, Holleczek B, Stocker H, Nissinen A, Palmieri L, Vartiainen E, Jousilahti P, Harald K, Massaro JM, Pencina M, Lyass A, Susa S, Oizumi T, Kayama T, Chetrit A, Roth J, Orenstein L, Welin L, Svärdsudd K, Lissner L, Hange D, Mehlig K, Salomaa V, Tilvis RS, Dennison E, Cooper C, Westbury L, Norman PE, Almeida OP, Hankey GJ, Hata J, Shibata M, Furuta Y, Bom MT, Rutters F, Muilwijk M, Kraft P, Lindstrom S, Turman C, Kiyama M, Kitamura A, Yamagishi K, Gerber Y, Laatikainen T, Salonen JT, van Schoor LN, van Zutphen EM, Verschuren WMM, Engström G, Melander O, Psaty BM, Blaha M, de Boer IH, Kronmal RA, Sattar N, Rosengren A, Nitsch D, Grandits G, Tverdal A, Shin HC, Albertorio JR, Gillum RF, Hu FB, Cooper JA, Humphries S, Hill- Briggs F, Vrany E, Butler M, Schwartz JE, Kiyama M, Kitamura A, Iso H, Amouyel P, Arveiler D, Ferrieres J, Gansevoort RT, de Boer R, Kieneker L, Crespo CJ, Assmann G, Trompet S, Kearney P, Cantin B, Després JP, Lamarche B, Laughlin G, McEvoy L, Aspelund T, Thorsson B, Sigurdsson G, Tilly M, Ikram MA, Dorr M, Schipf S, Völzke H, Fretts AM, Umans JG, Ali T, Shara N, Davey-Smith G, Can G, Yüksel H, Özkan U, Nakagawa H, Morikawa Y, Ishizaki M, Njølstad I, Wilsgaard T, Mathiesen E, Sundström J, Buring J, Cook N, Arndt V, Rothenbacher D, Manson J, Tinker L, Shipley M, Tabak AG, Kivimaki M, Packard C, Robertson M, Feskens E, Geleijnse M, Kromhout D. Life expectancy associated with different ages at diagnosis of type 2 diabetes in high-income countries: 23 million person-years of observation. Lancet Diabetes Endocrinol 2023; 11:731-742. [PMID: 37708900 PMCID: PMC7615299 DOI: 10.1016/s2213-8587(23)00223-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 07/14/2023] [Accepted: 07/14/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND The prevalence of type 2 diabetes is increasing rapidly, particularly among younger age groups. Estimates suggest that people with diabetes die, on average, 6 years earlier than people without diabetes. We aimed to provide reliable estimates of the associations between age at diagnosis of diabetes and all-cause mortality, cause-specific mortality, and reductions in life expectancy. METHODS For this observational study, we conducted a combined analysis of individual-participant data from 19 high-income countries using two large-scale data sources: the Emerging Risk Factors Collaboration (96 cohorts, median baseline years 1961-2007, median latest follow-up years 1980-2013) and the UK Biobank (median baseline year 2006, median latest follow-up year 2020). We calculated age-adjusted and sex-adjusted hazard ratios (HRs) for all-cause mortality according to age at diagnosis of diabetes using data from 1 515 718 participants, in whom deaths were recorded during 23·1 million person-years of follow-up. We estimated cumulative survival by applying age-specific HRs to age-specific death rates from 2015 for the USA and the EU. FINDINGS For participants with diabetes, we observed a linear dose-response association between earlier age at diagnosis and higher risk of all-cause mortality compared with participants without diabetes. HRs were 2·69 (95% CI 2·43-2·97) when diagnosed at 30-39 years, 2·26 (2·08-2·45) at 40-49 years, 1·84 (1·72-1·97) at 50-59 years, 1·57 (1·47-1·67) at 60-69 years, and 1·39 (1·29-1·51) at 70 years and older. HRs per decade of earlier diagnosis were similar for men and women. Using death rates from the USA, a 50-year-old individual with diabetes died on average 14 years earlier when diagnosed aged 30 years, 10 years earlier when diagnosed aged 40 years, or 6 years earlier when diagnosed aged 50 years than an individual without diabetes. Using EU death rates, the corresponding estimates were 13, 9, or 5 years earlier. INTERPRETATION Every decade of earlier diagnosis of diabetes was associated with about 3-4 years of lower life expectancy, highlighting the need to develop and implement interventions that prevent or delay the onset of diabetes and to intensify the treatment of risk factors among young adults diagnosed with diabetes. FUNDING British Heart Foundation, Medical Research Council, National Institute for Health and Care Research, and Health Data Research UK.
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10
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Nishibori S, Sakurai M, Kagawa Y, Uchida K, Nakagawa T, Igase M, Mizuno T. Cross-reactivity of anti-human programmed cell death ligand 1 (PD-L1) monoclonal antibody, clone 28-8 against feline PD-L1. J Vet Med Sci 2023. [PMID: 37150603 DOI: 10.1292/jvms.23-0003] [Citation(s) in RCA: 1] [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: 05/09/2023] Open
Abstract
Immunotherapy is a breakthrough in human cancer therapy and has become a major concern in veterinary oncology. However, in cats, many unclear points of the tumor microenvironment exist, including immune checkpoint molecules. A reason is that very few monoclonal antibodies have been proven to react with feline molecules. Therefore, this study investigated whether anti-human programmed cell death ligand 1 (PD-L1) monoclonal antibody, clone 28-8, which is currently commercially available, can also recognize feline PD-L1 by flow cytometry, immunoprecipitation, and immunohistochemical (IHC) staining. We confirmed that the antibody's specificity by flow cytometry and immunoprecipitation using NIH3T3 cells transfected with feline PD-L1. Additionally, we revealed that PD-L1 was expressed on the surface of some feline cell lines by flow cytometry and clone 28-8 antibody unbound to the cells where feline PD-L1 was knocked out. Furthermore, IHC analysis revealed that PD-L1 was expressed in macrophages in the spleen and lymph nodes from healthy cats and mast cell tumor cells. Therefore, we indicated that the clone 28-8 antibody is a valuable tool in detecting feline PD-L1, and further analysis of tumor tissues is expected in the future.
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Affiliation(s)
- Shoma Nishibori
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi Universit
| | | | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University
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11
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Sakurai M, Barrack AJ, Lobb NJ, Wee CP, Diaz PR, Michener LA, Karduna AR. Collegiate baseball pitchers demonstrate a relationship between ball velocity and elbow varus torque, both within and across pitchers. Sports Biomech 2023:1-9. [PMID: 37114500 PMCID: PMC10611893 DOI: 10.1080/14763141.2023.2205380] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 04/17/2023] [Indexed: 04/29/2023]
Abstract
High elbow varus torque during baseball pitching has been identified as a potential cause of ulnar collateral ligament injury in baseball pitchers. In general, elbow varus torque increases as ball velocity increases across pitchers. However, studies incorporating within-subject analyses report that not all professional pitchers have a positive relationship between elbow varus torque and ball velocity (T-V relationship). It remains unknown whether collegiate pitchers show the same trend as professionals in their T-V relationships. The current study investigated the T-V relationship of collegiate pitchers focusing on both across and within pitchers. Division 1 collegiate pitchers (n = 81) were assessed for elbow torque and ball velocity during pitching. Both across- and within-pitcher T-V relationships were significant (p < 0.05) using linear regression. However, more variance in elbow varus torque was explained using the within-pitcher relationship (R2 = 0.29) than the across-pitcher relationship (R2 = 0.05). Of the 81 pitchers, nearly half (n = 39) had significant T-V relationships, while the other half (n = 42) did not. Our findings indicate that the T-V relationship should be assessed on an individual basis as T-V is pitcher-specific.
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Affiliation(s)
- M Sakurai
- Department of Human Physiology, University of Oregon, Eugene, Oregon, USA
| | - A J Barrack
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California, USA
| | - N J Lobb
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California, USA
| | - C P Wee
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California, USA
| | - P R Diaz
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California, USA
| | - L A Michener
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California, USA
| | - A R Karduna
- Department of Human Physiology, University of Oregon, Eugene, Oregon, USA
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12
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Sakurai M, Yamamoto Y, Tamaru M, Shimoda H, Sakai Y, Morimoto M. Disseminated histiocytic sarcoma in a squirrel monkey (Saimiri sciureus). J Med Primatol 2023; 52:121-124. [PMID: 36286409 DOI: 10.1111/jmp.12625] [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: 04/07/2022] [Revised: 09/25/2022] [Accepted: 10/03/2022] [Indexed: 11/29/2022]
Abstract
A 14-years-old squirrel monkey was euthanized due to weakness. Histopathological examination revealed multifocal growth of oval cells with severe atypia in the liver, spleen, and bone marrow. The neoplastic cells were positive for histiocytic markers (Iba1, HLA-DR, CD204). This is the fourth case of histiocytic sarcoma in non-human primates.
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Affiliation(s)
- Masashi Sakurai
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Yukihiro Yamamoto
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | | | - Hiroshi Shimoda
- Department of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Yusuke Sakai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masahiro Morimoto
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
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13
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Ando S, Sakurai M, Shibutani S, Kimura N, Shimozawa N, Yasutomi Y, Yabe R, Ohama T, Sato K. Age-related alterations in protein phosphatase 2A methylation levels in brains of cynomolgus monkeys: a pilot study. J Biochem 2023; 173:435-445. [PMID: 36702627 DOI: 10.1093/jb/mvad006] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/03/2023] [Accepted: 01/22/2023] [Indexed: 01/28/2023] Open
Abstract
The abnormal activity of PP2A, a dominant member of type 2A serine/threonine protein phosphatase, has been implicated in the development of Alzheimer's disease (AD) and dementia with Lewy bodies (DLB). PP2A is a holoenzyme, and protein methylation of the catalytic subunit, PP2Ac, alters the complex composition. A decrease in PP2Ac methylation levels has been reported in AD and DLB. Aging is the most common risk factor for AD and DLB, but the relationship between aging and PP2A has not been studied in detail. Cynomolgus monkey show increased phosphorylation levels of tau and α-synuclein with aging. In this study, we investigated the alterations in the PP2A activity regulation with aging in monkey brains from 2 to 43 years of age using fractionated proteins. We found that type 2A protein phosphatase activity decreased with aging in cytoplasmic and nuclear-soluble fractions. PP2Ac methylation level was decreased in cytoplasmic and sarkosyl-insoluble fractions. A principal component analysis using PP2Ac, demethylated PP2Ac, and PP2A methylesterase PME-1 levels in cytoplasmic and nuclear-soluble fractions as attributes showed that aged monkeys were in the same cluster. Our results show that brain aging in cynomolgus monkeys is closely related to changes in PP2A methylation.
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Affiliation(s)
- Sana Ando
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Shusaku Shibutani
- Laboratory of Veterinary Hygiene, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Nobuyuki Kimura
- Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, Ibaraki, Japan.,Laboratory of Laboratory Animal, Department of Veterinary Associated Science, Faculty of Veterinary Medicine, Okayama University of Science
| | - Nobuhiro Shimozawa
- Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, Ibaraki, Japan
| | - Yasuhiro Yasutomi
- Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, Ibaraki, Japan
| | - Ryotaro Yabe
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Takashi Ohama
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
| | - Koichi Sato
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515, Japan
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14
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Nemoto Y, Nakaichi M, Sakurai M, Itamoto K, Morimoto M, Horikirizono H, Itoh H, Sunahara H, Tani K. Histiocytic sarcoma with spinal necrosis in a dog with progressing non-ambulatory tetraparesis. Open Vet J 2023; 13:394-399. [PMID: 37026072 PMCID: PMC10072830 DOI: 10.5455/ovj.2023.v13.i3.18] [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: 12/01/2022] [Accepted: 02/17/2023] [Indexed: 03/30/2023] Open
Abstract
Background:
Histiocytic sarcoma (HS) is an aggressive malignant neoplasm, and widespread metastasis occurs with a fatal outcome. HS involving the central nervous system is relatively uncommon. Spinal cord necrosis, a very rare condition, could be induced by ischemia or infarction. Here, we report a dog progressing non-ambulatory tetraparesis with spinal cord necrosis caused by HS.
Case Description:
A 9-year-old male Labrador retriever was presented with a progressing non-ambulatory tetraparesis. CT imaging revealed lysis of the spinous process of T7 and a ring-shaped lesion surrounding the soft tissue of lung fields. T2-weighted MRI showed the spinous processes of T6 to T8 as hyperintense, and the lesion infiltrated into the T7 vertebra and the spinal cord. After euthanasia, the final diagnosis upon necropsy was HS, which was observed in the lung, spinous process, thoracic cord, and the pulmonary hilar lymph node. Moreover, necrotic spots were spread widely through the thoracic spinal cord.
Conclusion:
This report outlines a case of canine HS in the lung, spinous process, thoracic cord, and pulmonary hilar lymph node. Ischemic deficit and necrosis of the thoracic spinal cord resulted from the compression of perivascular tumor cells, which rapidly led to progressive tetraparesis. Although the diagnosis was difficult, MRI and CT images helped determine the prognosis. To our knowledge, this is the first case report of canine HS with direct spinal cord involvement associated with spinal necrosis.
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Affiliation(s)
- Yuki Nemoto
- Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
- Corresponding Author: Yuki Nemoto. Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan. .
| | - Munekazu Nakaichi
- Department of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kazuhito Itamoto
- Department of Veterinary Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masahiro Morimoto
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hiro Horikirizono
- Department of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Harumichi Itoh
- Department of Veterinary Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hiroshi Sunahara
- Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kenji Tani
- Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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15
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Igase M, Inanaga S, Tani K, Nakaichi M, Sakai Y, Sakurai M, Kato M, Tsukui T, Mizuno T. Long-term survival of dogs with stage 4 oral malignant melanoma treated with anti-canine PD-1 therapeutic antibody: A follow-up case report. Vet Comp Oncol 2022; 20:901-905. [PMID: 35535636 DOI: 10.1111/vco.12829] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 11/29/2022]
Abstract
A monoclonal antibody targeting programmed cell death-1 (PD-1) is one of the most promising treatments for human cancers. Clinical studies in humans demonstrated that the anti-PD-1 antibody provides a long-lasting tumour response. Previously, we established an anti-canine PD-1 therapeutic antibody (ca-4F12-E6), and the pilot clinical study demonstrated that the antibody was effective in dogs with oral malignant melanoma (OMM). However, two OMM cases were still undergoing treatment when the pilot study was published. Here, we describe the long-term follow-up of those two cases. Although both cases showed long-term survival with complete response (CR), the tumour response differed; the effect onset was slow in one case and a durable response was observed in the second case even after treatment discontinuation. Secondary malignant tumours occurred during treatment in both cases. This follow-up study revealed that ca-4F12-E6 maintains CR in dogs for more than 1 year. In addition, the pattern of tumour response was unique compared to conventional therapy. These results indicate that new evaluation criteria for tumour response may be necessary for immunotherapy in veterinary medicine. Long-term follow-up is necessary regardless of the short-term treatment responsiveness.
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Affiliation(s)
- Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Sakuya Inanaga
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kenji Tani
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Munekazu Nakaichi
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masahiro Kato
- Nippon Zenyaku Kogyo Co., Ltd., Koriyama, Fukushima, Japan
| | | | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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16
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Sakai Y, Kuwabara Y, Ishijima K, Kagimoto S, Mura S, Tatemoto K, Kuwata R, Yonemitsu K, Minami S, Kuroda Y, Baba K, Okuda M, Shimoda H, Sakurai M, Morimoto M, Maeda K. Histopathological Characterization of Cases of Spontaneous Fatal Feline Severe Fever with Thrombocytopenia Syndrome, Japan. Emerg Infect Dis 2021; 27:1068-1076. [PMID: 33754983 PMCID: PMC8007303 DOI: 10.3201/eid2704.204148] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tickborne infectious disease caused by SFTS virus (SFTSV). We report 7 cases of spontaneous fatal SFTS in felines. Necropsies revealed characteristic lesions, including necrotizing lymphadenitis in 5 cases and necrotizing splenitis and SFTSV-positive blastic lymphocytes in all cases. We detected hemorrhagic lesions in the gastrointestinal tract in 6 cases and lungs in 3 cases, suggesting a more severe clinical course of SFTS in felids than in humans. We noted necrotic or ulcerative foci in the gastrointestinal tract in 3 cases, the lung in 2 cases, and the liver in 4 cases. We clarified that blastic lymphocytes are predominant targets of SFTSV and involved in induction of necrotic foci. We also found that thymic epithelial cells were additional targets of SFTSV. These results provide insights for diagnosing feline SFTS during pathological examination and demonstrate the similarity of feline and human SFTS cases.
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17
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Imai Y, Sakurai M, Nakagawa H, Hirata A, Murakami Y, Kiyohara Y, Ninomiya T, Ishikawa S, Saitoh S, Irie F, Sairenchi T, Kiyama M, Miura K, Ueshima H, Okamura T. Impact of Proteinuria and Low eGFR on Lifetime Risk of Cardiovascular Disease Death: A Pooled Analysis of Data From the Evidence for Cardiovascular Prevention From Observational Cohorts in Japan Study. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.179] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): H20–Junkankitou [Seishuu]–Ippan–013; H23–Junkankitou [Seishuu]–Ippan–005; H26-Junkankitou [Seisaku]-Ippan-001; H29–Junkankitou–Ippan–003 and 20FA1002
OnBehalf
EPOCH-JAPAN
Introduction
Absolute risk of Lifetime risk (LTR) is useful estimate for risk communication compared with short term risk or relative risk especially for young people. Proteinuria is leading cause of end-stage kidney disease (ESKD) and independent risk factor for cardiovascular disease (CVD). Although nonproteinuric renal disease is global burden of ESKD, it has been poorly focused. To date, there have been no reports of impact of proteinuria and low eGFR on LTR with the outcome of CVD death in Asian population.
Purpose
We aimed to estimate LTR of CVD death stratified by the status of proteinuria and low eGFR.
Methods
We used modified Kaplan-Meier approach to estimate the remaining lifetime risk of cardiovascular death based on EPOCH-JAPAN(Evidence for Cardiovascular Prevention From Observational Cohorts in Japan) database. LTR was estimated at each index age starting from 40 years for those with proteinuria and without proteinuria stratified by low eGFR, which is defined as eGFR <60 ml/min/1.73 m². Participants were classified into three groups, which were those with proteinuria (Proteinuria (+)), those without proteinuria with low eGFR (Proteinuria (-)/Low eGFR (+)), those without proteinuria without low eGFR (Proteinuria (-)/Low eGFR (-)).
Results
A total of 47,292 participants from 9 cohorts was included in the analysis. Mean follow-up period was 14.6 years with 690,463 person years and total CVD death was 1,075 in men and 1,193 in women. The LTRs at the index age of 40 years were as follows: 17.7% (95% confidence interval: 15.4 – 19.0%) in Proteinuria (-)/Low eGFR (-) group, 26.2% (20.2 – 31.1%) in Proteinuria (-)/low eGFR (+) group, 24.5% (15.1 – 29.3%) in Proteinuria (+) group for men; 15.3%(13.7 – 16.5%), 29.9%(14.7 – 46.8%) , 28.3%(19.4 – 34.7%) for women.
Conclusions
We observed that those without proteinuria with low eGFR have equivalently high LTR with those with proteinuria. These results indicate that even in the absence of proteinuria, low eGFR has high impact on LTR. Lifestyle modification from young age is necessary to prevent from renal dysfunction.
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Affiliation(s)
- Y Imai
- Keio University School of Medicine, Tokyo, Japan
| | - M Sakurai
- Kanazawa Medical University, Department of Epidemiology and Public Health, Kanazawa, Japan
| | - H Nakagawa
- Kanazawa Medical University, Department of Epidemiology and Public Health, Kanazawa, Japan
| | - A Hirata
- Keio University School of Medicine, Tokyo, Japan
| | - Y Murakami
- Toho University, Department of Medical Statistics, Tokyo, Japan
| | - Y Kiyohara
- Hisayama Research Institute for Lifestyle Disease, Fukuoka, Japan
| | - T Ninomiya
- Kyushu University Graduate School of Medical Sciences, Department of Epidemiology and Public Health, Fukuoka, Japan
| | - S Ishikawa
- Jichi Medical University, Medical Education Center, Tochigi, Japan
| | - S Saitoh
- Sapporo Medical University School of Health Sciences, Department of Nursing, Hokkaido, Japan
| | - F Irie
- Ibaraki Prefectural Office, Department of Health and Welfare, Ibaraki, Japan
| | - T Sairenchi
- Dokkyo Medical University School of Medicine, Department of Public Health, Tochigi, Japan
| | - M Kiyama
- Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - K Miura
- Shiga University of Medical Science, Department of Public Health, Shiga, Japan
| | - H Ueshima
- Shiga University of Medical Science, Department of Public Health, Shiga, Japan
| | - T Okamura
- Keio University School of Medicine, Tokyo, Japan
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18
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Sakurai M, Iwasa R, Sakai Y, Morimoto M. Minocycline prevents depression-like behavior in streptozotocin-induced diabetic mice. Neuropathology 2021; 41:109-117. [PMID: 33230848 DOI: 10.1111/neup.12706] [Citation(s) in RCA: 2] [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: 06/12/2020] [Revised: 08/09/2020] [Accepted: 08/23/2020] [Indexed: 12/20/2022]
Abstract
Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia. Diabetic patients are known to have a higher prevalence and a higher risk of depression compared with the general population. The pathogenesis of diabetes-related depression is unclear, and the treatment is not well-established. Therefore, the prevention of diabetes-related depression is important for improving the quality of life of diabetic patients. Minocycline, a second-generation tetracycline antibiotic, has recently gained attention as a new agent for depression. In this study, we investigated the effect of minocycline on diabetes-related depression in a streptozotocin-induced mouse model of diabetes. Eight-week-old male C57BL/6 mice were injected with streptozotocin (200 mg/kg, i.p.). Seven days after injection, the mice received minocycline treatment through drinking water. We compared these mice with vehicle-treated control mice and diabetic mice not receiving minocycline treatment. On day 34, depression-like behavior was investigated using the forced swim test. On the following day, brain samples were collected, and formalin-fixed, paraffin-embedded specimens were prepared for immunohistochemistry. Compared with the control group, the diabetic mice not receiving minocycline treatment showed a prolonged duration of immobility in the forced swim test, the observation being interpreted as a depression-like behavior. Immunohistochemistry revealed an increase in microglia with an activated morphology in the diabetic mice without minocycline treatment. The expression of tumor necrosis factor alpha in microglia was increased. In addition, a decrease in the number of doublecortin-positive immature neurons was found in the hippocampus of diabetic mice. Minocycline treatment of diabetic animals prevented the depression-like behavior and microglial activation; however, minocycline did not reverse impaired hippocampal neurogenesis. These results indicate that minocycline has a preventive effect on diabetes-related depression. Inhibition of microglial activation would be a critical target for the antidepressant mechanism of minocycline. Impaired hippocampal neurogenesis was observed in diabetic mice; however, this may not be involved in the pathogenesis of depression.
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Affiliation(s)
- Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Japan
| | - Ryoi Iwasa
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Japan
| | - Masahiro Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Japan
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19
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Sakurai M, Yamamoto Y, Kanayama N, Hasegawa M, Mouri A, Takemura M, Matsunami H, Miyauchi T, Tokura T, Kimura H, Ito M, Umemura E, Boku AS, Nagashima W, Tonoike T, Kurita K, Ozaki N, Nabeshima T, Saito K. Serum Metabolic Profiles of the Tryptophan-Kynurenine Pathway in the high risk subjects of major depressive disorder. Sci Rep 2020; 10:1961. [PMID: 32029791 PMCID: PMC7005270 DOI: 10.1038/s41598-020-58806-w] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [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] [Received: 06/26/2019] [Accepted: 01/21/2020] [Indexed: 12/31/2022] Open
Abstract
Previous reports have shown that during chronic inflammation, the tryptophan (TRP)-kynurenine (KYN) pathway plays a pivotal role in the onset of depression. The aim of this study was to investigate the characteristics of the serum TRP-KYN pathway metabolite profile in high-risk subjects of major depressive disorder (HRMDD) defined by depression scores. The concentrations of TRP-KYN pathway metabolites {TRP, KYN, 3-hydroxyanthranilic acid (3HAA), 3-hydroxykynurenine (3HK), kynurenic acid (KYNA) and anthranilic acid (AA)} were assessed in serum from HRMDD, chronic pain disorder patients and healthy controls. In serum from HRMDD, elevated levels of AA and decreased levels of TRP were observed, but the levels of other metabolites were not changed. Furthermore, the change in the AA2nd/AA1st ratio in subjects who progressed from a health. y state to a depressive state was correlated with an increase in the CES-D score. The level of IL-1 receptor antagonist (IL-1RA) was negatively correlated with that of AA. Interestingly, we confirmed AA as a possible biomarker for depression-related symptoms, since the metabolite profiles in the chronic pain disorder group and chronic unpredictable mild stress model mice were similar to those in the HRMDD. These results suggest that AA may be an effective marker for HRMDD.
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Affiliation(s)
- Masashi Sakurai
- Human Health Sciences, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, 606-8507, Japan
| | - Yasuko Yamamoto
- Human Health Sciences, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, 606-8507, Japan. .,Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Toyoake, 470-1192, Japan.
| | - Noriyo Kanayama
- Human Health Sciences, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, 606-8507, Japan
| | - Masaya Hasegawa
- Department of Regulatory Science, Fujita Health University Graduate School of Health Sciences, Toyoake, 470-1192, Japan
| | - Akihiro Mouri
- Department of Regulatory Science, Fujita Health University Graduate School of Health Sciences, Toyoake, 470-1192, Japan.,Japanese Drug Organization of Appropriate Use and Research, Nagoya, 468-0069, Japan
| | - Masao Takemura
- Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Toyoake, 470-1192, Japan
| | | | - Tomoya Miyauchi
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Tatsuya Tokura
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Hiroyuki Kimura
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Mikiko Ito
- Department of Oral and Maxillofacial, Surgery, School of Dentistry, Aichi Gakuin University, Nagoya, 470-0195, Japan
| | - Eri Umemura
- Department of Oral and Maxillofacial, Surgery, School of Dentistry, Aichi Gakuin University, Nagoya, 470-0195, Japan
| | - Aiji Sato Boku
- Department of Anesthesiology, Aichi Gakuin, University, Nagoya, 470-0195, Japan
| | - Wataru Nagashima
- Department of Psychopathology and Psychotherapy/Center for Student Counseling, Nagoya University, Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Takashi Tonoike
- Faculty of Psychological and Physical Sciences, Health Service Center, Aichi Gakuin University, Nisshin, Japan
| | - Kenichi Kurita
- Department of Oral and Maxillofacial, Surgery, School of Dentistry, Aichi Gakuin University, Nagoya, 470-0195, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Toshitaka Nabeshima
- Japanese Drug Organization of Appropriate Use and Research, Nagoya, 468-0069, Japan.,Advanced Diagnostic System Research Laboratory, Fujita Health University Graduate School of Health Sciences, Toyoake, 470-1192, Japan
| | - Kuniaki Saito
- Human Health Sciences, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, 606-8507, Japan.,Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Toyoake, 470-1192, Japan.,Japanese Drug Organization of Appropriate Use and Research, Nagoya, 468-0069, Japan
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20
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Sakurai M, Kurachi J, Sakai Y, Morimoto M. Nippostrongylus brasiliensis infection inhibits hippocampal neurogenesis in mice. Neuropathology 2019; 39:425-433. [PMID: 31502307 DOI: 10.1111/neup.12596] [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: 02/01/2019] [Revised: 07/28/2019] [Accepted: 07/28/2019] [Indexed: 11/29/2022]
Abstract
The brain has long been considered a site of "immune privilege"; however, recent evidence indicates the presence of brain-immune interactions in physiological and pathological conditions. Neurogenesis, a process of generating functionally integrated neurons, occurs in the adult brain of mammals. The adult neurogenesis predominantly takes place in the subgranular zone (SGZ) of the hippocampal dentate gyrus and the subventricular zone (SVZ). Several studies have shown that an immune reaction or alteration could affect adult neurogenesis activity, suggesting a link between the immune system and adult neurogenesis. Helminth infection is one of the activators of Th2 immune response. However, the influence of this type of immune reaction on adult neurogenesis is not well studied. In this study, we evaluated adult neurogenesis in mice infected with the helminth Nippostrongylus brasiliensis (Nb). Immunohistochemically, the number of both doublecortin-positive cells and doublecortin/5-bromodeoxyuridine (BrdU)-double-positive cells was decreased in the SGZ of Nb-infected mice by day 9 after infection. However, the total number of BrdU-positive newborn cells in the SGZ did not change. In no significant alterations were detected in the SVZ of infected mice. In addition, using reverse transcription-quantitative polymerase chain reaction, we observed no significant changes in the expression levels of neurotropic factors important for neurogenesis in the hippocampus. In conclusion, our results indicate that adult neurogenesis in SGZ, but not in SVZ, is inhibited by Nb infection. Th2 immune response might have a suppressive effect on hippocampal neurogenesis.
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Affiliation(s)
- Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Junya Kurachi
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masahiro Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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21
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Sakai Y, Hiyama M, Kagimoto S, Mitsui Y, Imaiumi M, Okayama T, Haradono K, Sakurai M, Morimoto M. Enteric peripheral neuroblastoma in a calf. J Vet Med Sci 2019; 81:824-827. [PMID: 30971632 PMCID: PMC6612498 DOI: 10.1292/jvms.18-0450] [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: 11/22/2022] Open
Abstract
An 11-month-old female Japanese Black calf had showed chronic intestinal symptoms. A
large mass surrounding the colon wall that was continuous with the colon submucosa was
surgically removed. After recurrence and euthanasia, a large mass in the colon region and
metastatic masses in the omentum, liver, and lung were revealed at necropsy. Pleomorphic
small cells proliferated in the mass and muscular layer of the colon. The cells were
positively stained with anti-doublecortin (DCX), PGP9.5, nestin, and neuron specific
enolase (NSE). Thus, the diagnosis of peripheral neuroblastoma was made. This is the first
report of enteric peripheral neuroblastoma in animals. Also, clear DCX staining signal
suggested usefulness of DCX immunohistochemistry to differentiate the neuroblastoma from
other small cell tumors in cattle.
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Affiliation(s)
- Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8515, Japan
| | - Masato Hiyama
- Laboratory of Large Animal Clinical Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8515, Japan
| | - Saya Kagimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8515, Japan
| | - Yuki Mitsui
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8515, Japan
| | - Miko Imaiumi
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8515, Japan
| | - Takeshi Okayama
- Tobu Large Animal Clinic, NOSAI Yamaguchi, 512-2 Kuhara, Shuto-cho, Iwakuni-shi, Yamaguchi 742-0417, Japan
| | - Kaori Haradono
- Tobu Large Animal Clinic, NOSAI Yamaguchi, 512-2 Kuhara, Shuto-cho, Iwakuni-shi, Yamaguchi 742-0417, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8515, Japan
| | - Masahiro Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8515, Japan
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22
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Igase M, Shousu K, Fujiki N, Sakurai M, Bonkobara M, Hwang CC, Coffey M, Noguchi S, Nemoto Y, Mizuno T. Anti-tumour activity of oncolytic reovirus against canine histiocytic sarcoma cells. Vet Comp Oncol 2019; 17:184-193. [PMID: 30761736 DOI: 10.1111/vco.12468] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 12/13/2022]
Abstract
Canine histiocytic sarcoma is an aggressive, fatal neoplastic disease with a poor prognosis. Lomustine is generally accepted as the first-line systemic therapy, although this compound does not provide complete regression. Therefore, research into a novel approach against canine histiocytic sarcoma is needed. However, anti-tumour effects of oncolytic therapy using reovirus against histiocytic sarcoma are unknown. Here, we showed that reovirus has oncolytic activity in canine histiocytic sarcoma cell lines in vitro and in vivo. We found that reovirus can replicate and induce caspase-dependent apoptosis in canine histiocytic sarcoma cell lines. A single intra-tumoural injection of reovirus completely suppressed the growth of subcutaneously grafted tumours in NOD/SCID mice. Additionally, we demonstrated that susceptibility to reovirus-induced cell death was attributable to the extent of expression of type I interferons induced by reovirus infection in vitro. In conclusion, oncolytic reovirus appears to be an effective treatment option for histiocytic sarcoma, and therefore warrants further investigation in early clinical trials.
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Affiliation(s)
- Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - Kazuha Shousu
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Noriyuki Fujiki
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Makoto Bonkobara
- Laboratory of Veterinary Clinical Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Chung C Hwang
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - Matt Coffey
- Oncolytics Biotech Inc., Calgary, Alberta, Canada
| | - Shunsuke Noguchi
- Laboratory of Veterinary Radiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - Yuki Nemoto
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.,Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.,Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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23
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Kawaguchi K, Sakurai M, Yamamoto Y, Suzuki E, Tsuda M, Kataoka TR, Hirata M, Nishie M, Nojiri T, Kumazoe M, Saito K, Toi M. Alteration of specific cytokine expression patterns in patients with breast cancer. Sci Rep 2019; 9:2924. [PMID: 30814616 PMCID: PMC6393524 DOI: 10.1038/s41598-019-39476-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [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] [Received: 03/09/2018] [Accepted: 01/22/2019] [Indexed: 12/21/2022] Open
Abstract
Systemic inflammation has been associated with aggressive tumor growth, invasion, and metastasis. Here we performed a comprehensive analysis of 26 kinds of inflammatory cytokine expression patterns among 185 patients with breast cancer and 54 healthy volunteers followed by chemometric analysis. We identified the specific cytokine expression patterns of breast cancer patients compared to healthy volunteers with (1) VEGF, IL-9, GM-CSF, IL-13, IL-4, and IFNγ, (2) IL-8, IL-10, IL-12, IL-5, IL-7, IL-1α, GCSF, IL-1β, and TNFα and (3) IL-2, Eotaxin, MIP1β, MIP1α, IL-17, and bFGF. Among the patients with breast cancer, we identified the specific cytokine signature of metastatic patients compared to non-metastatic patients. We also established a mathematical model for distinguishing patients with breast cancer from healthy volunteers and metastatic patients from non-metastatic patients. This cytokine network analysis could provide new insights into early intervention and effective therapeutic strategy for patients with breast cancer.
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Affiliation(s)
- Kosuke Kawaguchi
- Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Masashi Sakurai
- Human Health Sciences, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Yasuko Yamamoto
- Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Toyoake, Aichi, Japan
| | - Eiji Suzuki
- Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Moe Tsuda
- Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tatsuki R Kataoka
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Masahiro Hirata
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Mariko Nishie
- Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takashi Nojiri
- Department of General Thoracic Surgery, Higashiosaka City Medical Center, Osaka, Japan
| | - Motofumi Kumazoe
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Kuniaki Saito
- Human Health Sciences, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, Japan.,Department of Disease Control and Prevention, Fujita Health University Graduate School of Health Sciences, Toyoake, Aichi, Japan
| | - Masakazu Toi
- Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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24
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Khatun A, Sakurai M, Sakai Y, Tachibana M, Ohara N, Morimoto M. Mycobacterial infection induces eosinophilia and production of α-defensin by eosinophils in mice. J Vet Med Sci 2019; 81:138-142. [PMID: 30473572 PMCID: PMC6361637 DOI: 10.1292/jvms.18-0619] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
It has been well known in humans that eosinophil infiltration into the site of inflammation and eosinophilia occur in mycobacterial infections. However, the role of eosinophils against the
mycobacterium is unclear. We showed in previous study that in situ mouse eosinophils infiltrated into tissues produce α-defensin, an anti-bacterial peptide. We investigated
in this study whether eosinophils reacting to mycobacteria produce α-defensin in mice and whether it can be used as a model. We showed that mycobacterial infection induced blood eosinophilia
and infiltration of α-defensin producing eosinophils that to surround mycobacteria at the site of infection. These findings were usually seen during human mycobacterial infection. We
established a good model to study host defense mechanism against mycobacteria through α-defensin via eosinophils.
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Affiliation(s)
- Afia Khatun
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi 753-8515, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi 753-8515, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi 753-8515, Japan
| | - Masato Tachibana
- Department of Oral Microbiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama 700-8558, Japan
| | - Naoya Ohara
- Department of Oral Microbiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata, Kita-ku, Okayama 700-8558, Japan
| | - Masahiro Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi 753-8515, Japan
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25
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Sakurai M, Kato J, Toyama T, Hashida R, Yamane Y, Abe R, Koda Y, Kohashi S, Kikuchi T, Hayashi Y, Nukaga S, Ueda S, Fukunaga K, Okamoto S, Mori T. Successful Steroid Therapy for Lipoid Pneumonia Developing After Allogeneic Hematopoietic Stem Cell Transplant: A Case Report. Transplant Proc 2018; 50:4096-4098. [DOI: 10.1016/j.transproceed.2018.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 09/05/2018] [Indexed: 12/18/2022]
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26
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Abstract
α-defensin is a potent antimicrobial peptide secreted from intestinal mucosal epithelial
cells, such as Paneth cells, and affects not only bacteria but also parasites and fungi.
Recently, human eosinophils have also been shown to produce α-defensin, but no studies
have been done on other animals. In this study, we attempted to detect α-defensin protein
in mouse eosinophils infiltrating the intestinal mucosa during a helminth infection using
Zamboni fixation and immunohistochemistry. Most of the eosinophils infiltrating the
intestinal mucosa during helminth infection were positive for α-defensin. The expression
level of α-defensin mRNA was 50 fold that in the control. Meanwhile, the number of Paneth
cells was doubled, and their α-defensin fluorescence intensity was increased. These
results suggested that eosinophils are also important producers of α-defensin, such as
Paneth cells in mice, and that α-defensin produced from eosinophils might be involved in
defensive mechanisms against helminths. Moreover, the experimental system used in this
study is a good model to study the generation of α-defensin by eosinophils.
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Affiliation(s)
- Afia Khatun
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Kazuki Okada
- North Lab, 8-35 Hondori, 2-chome kita, Shiroishi-ku, Sapporo, Hokkaido 003-0027, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Masahiro Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
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27
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Sakurai M, Iwasa R, Sakai Y, Chambers JK, Uchida K, Morimoto M. Expression of Stem Cell Factor in Feline Mast Cell Tumour. J Comp Pathol 2018; 163:6-9. [PMID: 30213375 DOI: 10.1016/j.jcpa.2018.06.005] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/31/2018] [Accepted: 06/12/2018] [Indexed: 11/25/2022]
Abstract
Stem cell factor (SCF) is a ligand of the molecule Kit, which is expressed in mast cells and is important for mast cell proliferation, migration and survival. Mast cell tumours (MCTs) are associated with mutations of c-kit, a proto-oncogene encoding the Kit protein. In this study, we examined SCF expression in 23 samples of feline MCTs. SCF expression was detected in 10 cutaneous MCTs and a case of splenic mastocytosis. In the cutaneous MCTs, SCF-positive tumour cells were located at the margins. Kit was expressed in eight of the 10 cutaneous cases of SCF-expressing MCTs. In these cases, Kit-positive cells were located near to SCF-positive cells, and SCF/Kit double-positive tumour cells were found. Ki67-positive tumour cells were not found near to SCF-positive cells. These results suggest that SCF autocrine/paracrine mechanisms are involved in the expansion of cutaneous MCTs, but not in tumour proliferation.
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Affiliation(s)
- M Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, Japan
| | - R Iwasa
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, Japan
| | - Y Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, Japan
| | - J K Chambers
- Laboratory of Veterinary Pathology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - K Uchida
- Laboratory of Veterinary Pathology, Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - M Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, Japan.
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28
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Usui T, Sakurai M, Umata K, Elbadawy M, Ohama T, Yamawaki H, Hazama S, Takenouchi H, Nakajima M, Tsunedomi R, Suzuki N, Nagano H, Sato K, Kaneda M, Sasaki K. Hedgehog Signals Mediate Anti-Cancer Drug Resistance in Three-Dimensional Primary Colorectal Cancer Organoid Culture. Int J Mol Sci 2018; 19:ijms19041098. [PMID: 29642386 PMCID: PMC5979580 DOI: 10.3390/ijms19041098] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [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: 03/25/2018] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 01/06/2023] Open
Abstract
Colorectal cancer is one of the most common causes of cancer death worldwide. In patients with metastatic colorectal cancer, combination treatment with several anti-cancer drugs is employed and improves overall survival in some patients. Nevertheless, most patients with metastatic disease are not cured owing to the drug resistance. Cancer stem cells are known to regulate resistance to chemotherapy. In the previous study, we established a novel three-dimensional organoid culture model from tumor colorectal tissues of human patients using an air-liquid interface (ALI) method, which contained numerous cancer stem cells and showed resistance to 5-fluorouracil (5-FU) and Irinotecan. Here, we investigate which inhibitor for stem cell-related signal improves the sensitivity for anti-cancer drug treatment in tumor ALI organoids. Treatment with Hedgehog signal inhibitors (AY9944, GANT61) decreases the cell viability of organoids compared with Notch (YO-01027, DAPT) and Wnt (WAV939, Wnt-C59) signal inhibitors. Combination treatment of AY9944 or GANT61 with 5-FU, Irinotecan or Oxaliplatin decreases the cell viability of tumor organoids compared with each anti-cancer drug alone treatment. Treatment with AY9944 or GANT61 inhibits expression of stem cell markers c-Myc, CD44 and Nanog, likely through the decrease of their transcription factor, GLI-1 expression. Combination treatment of AY9944 or GANT61 with 5-FU or Irinotecan also prevents colony formation of colorectal cancer cell lines HCT116 and SW480. These findings suggest that Hedgehog signals mediate anti-cancer drug resistance in colorectal tumor patient-derived ALI organoids and that the inhibitors are useful as a combinational therapeutic strategy against colorectal cancer.
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Affiliation(s)
- 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.
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan.
| | - Koji Umata
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, 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, Moshtohor, Toukh, Elqaliobiya 13736, Egypt.
| | - Takashi Ohama
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan.
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 bancho 35-1, Towada City, Aomori 034-8628, Japan.
| | - Shoichi Hazama
- Department of Translational Research and Developmental Therapeutics against Cancer, School of Medicine, Yamaguchi University, 1-1-1 Ogushi, Ube, Yamaguchi 755-8505, Japan.
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Ogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Hiroko Takenouchi
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Ogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Masao Nakajima
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Ogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Ryouichi Tsunedomi
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Ogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Nobuaki Suzuki
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Ogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Ogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Koichi Sato
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan.
| | - 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.
| | - 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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Abstract
New neurons are generated in the adult hippocampus throughout life and contribute to the functions of learning and memory. Nevertheless, the mechanisms by which disrupted neurogenesis regulates central nervous system (CNS) disorders are not fully understood. Here, we established a novel 3D culture system of hippocampal neurogenesis using air liquid interface (ALI) culture and Matrigel culture from mouse hippocampus tissues. After isolated mouse hippocampus tissue fragments were seeded into ALI wells and cultured in stemness‐stimulated media containing Wnt, EGF, Noggin and R‐spondin for 7 days, small spheres gradually appeared in the tissues. To identify the cell components, immunohistochemical and immunofluorescence staining were performed. Expression of a mature neuronal cell marker, NeuN was observed in the tissues just after seeding. Expression of a neural stem cell marker, Nestin was observed in the tissues at day 7. To differentiate the Nestin‐positive cells, they were passaged into Matrigel. Expression of Nestin but not an immature neuronal cell marker, doublecortin (DCX) was observed in the isolated cells. After 7 days of Matrigel culture, they showed the neurite outgrowth. Expression of Nestin was decreased compared with the one just after passaging, while DCX expression was increased. Western blotting analysis also showed Nestin expression was decreased, while expression of DCX, a neuronal cell marker, Tuj1 and a granule cell marker, Prox‐1 was increased. Here, we establish the 3D culture of hippocampus tissues that might become a novel in vitro tool for monitoring the process of hippocampal neurogenesis. Our model might shed light into the mechanisms of pathogenesis of CNS disorders.
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Affiliation(s)
- Tatsuya Usui
- Laboratory of Veterinary Toxicology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hideyoshi Kawasaki
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takashi Ohama
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Koichi Sato
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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Usui T, Sakurai M, Umata K, Yamawaki H, Ohama T, Sato K. Preparation of Human Primary Colon Tissue-Derived Organoid Using Air Liquid Interface Culture. ACTA ACUST UNITED AC 2018; 75:22.6.1-22.6.7. [PMID: 29512123 DOI: 10.1002/cptx.40] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 12/20/2022]
Abstract
In vitro analysis of intestinal epithelium has been hindered by a lack of suitable culture systems useful for gastrointestinal research. To overcome the problem, an air liquid interface (ALI) method using a collagen gel was established to culture three-dimensional primary cells containing both primary epithelial and mesenchymal components from mouse gastrointestinal tissues. ALI organoids accurately recapitulate organ structures, multilineage differentiation, and physiology. Since ALI organoids from human tissues have not been produced, we modified the previous protocol for mouse ALI organoid culture to establish the culture system of ALI organoids from normal and tumor colorectal tissues of human patients. The current unit presents a protocol for preparation of the ALI organoid culture from normal and tumor colorectal tissues of human patients. ALI organoid culture from human tissues might be useful for examining not only resistance to chemotherapy in a tumor microenvironment but also toxic effects on organoids. © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Tatsuya Usui
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Koji Umata
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Takashi Ohama
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Koichi Sato
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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31
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Enjoji S, Yabe R, Tsuji S, Yoshimura K, Kawasaki H, Sakurai M, Sakai Y, Takenouchi H, Yoshino S, Hazama S, Nagano H, Oshima H, Oshima M, Vitek MP, Matsuura T, Hippo Y, Usui T, Ohama T, Sato K. Stemness Is Enhanced in Gastric Cancer by a SET/PP2A/E2F1 Axis. Mol Cancer Res 2018; 16:554-563. [PMID: 29330298 DOI: 10.1158/1541-7786.mcr-17-0393] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 10/10/2017] [Accepted: 12/13/2017] [Indexed: 11/16/2022]
Abstract
Gastric cancer is the fifth most common malignancy and the third leading cause of cancer-related deaths worldwide. Chemotherapies against gastric cancer often fail, with cancer recurrence due potentially to the persistence of cancer stem cells. This unique subpopulation of cells in tumors possesses the ability to self-renew and dedifferentiate. These cancer stem cells are critical for initiation, maintenance, metastasis, and relapse of cancers; however, the molecular mechanisms supporting cancer stemness remain largely unknown. Increased kinase and decreased phosphatase activity are hallmarks of oncogenic signaling. Protein phosphatase 2A (PP2A) functions as a tumor-suppressor enzyme, and elevated levels of SET/I2PP2A, an endogenous PP2A protein inhibitor, are correlated with poor prognosis of several human cancers. Here, it was determined that SET expression was elevated in tumor tissue in a gastric cancer mouse model system, and SET expression was positively correlated with poor survival of human gastric cancer patients. Mechanistically, SET knockdown decreased E2F1 levels and suppressed the stemness of cancer cell lines. Immunoprecipitations show SET associated with the PP2A-B56 complex, and the B56 subunit interacted with the E2F1 transcription factor. Treatment of gastric cancer cells with the SET-targeting drug OP449 increased PP2A activity, decreased E2F1 protein levels, and suppressed stemness of cancer cells. These data indicate that a SET/PP2A/E2F1 axis regulates cancer cell stemness and is a potential target for gastric cancer therapy.Implications: This study highlights the oncogenic role of SET/I2PP2A in gastric cancer and suggests that SET maintains cancer cell stemness by suppressing PP2A activity and stabilizing E2F1. Mol Cancer Res; 16(3); 554-63. ©2018 AACR.
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Affiliation(s)
- Shuhei Enjoji
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Ryotaro Yabe
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Shunya Tsuji
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kazuhiro Yoshimura
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hideyoshi Kawasaki
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yusuke Sakai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Hiroko Takenouchi
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | | | - Shoichi Hazama
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Hiroko Oshima
- Division of Genetics, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Masanobu Oshima
- Division of Genetics, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Michael P Vitek
- Department of Neurology, Duke University Medical Center, Durham, North Carolina.,Oncotide Pharmaceuticals, Inc., Research Triangle Park, North Carolina
| | - Tetsuya Matsuura
- Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Kanagawa, Japan
| | | | - Tatsuya Usui
- Laboratory of Veterinary Toxicology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takashi Ohama
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan.
| | - Koichi Sato
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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Sakurai M, Suzuki H, Tomita N, Sunden Y, Shimada A, Miyata H, Morita T. Enhanced neurogenesis and possible synaptic reorganization in the piriform cortex of adult rat following kainic acid-induced status epilepticus. Neuropathology 2017; 38:135-143. [DOI: 10.1111/neup.12445] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/05/2017] [Accepted: 11/05/2017] [Indexed: 01/25/2023]
Affiliation(s)
- Masashi Sakurai
- Department of Veterinary Pathology; Tottori University; Tottori Japan
| | - Hiroko Suzuki
- Department of Veterinary Pathology; Tottori University; Tottori Japan
| | - Nagi Tomita
- Department of Veterinary Pathology; Tottori University; Tottori Japan
| | - Yuji Sunden
- Department of Veterinary Pathology; Tottori University; Tottori Japan
| | | | - Hajime Miyata
- Department of Neuropathology; Research Institute for Brain and Blood Vessels; Akita Japan
| | - Takehito Morita
- Department of Veterinary Pathology; Tottori University; Tottori Japan
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33
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Usui T, Sakurai M, Nishikawa S, Umata K, Nemoto Y, Haraguchi T, Itamoto K, Mizuno T, Noguchi S, Mori T, Iwai S, Nakagawa T, Yamawaki H, Ohama T, Sato K. Establishment of a dog primary prostate cancer organoid using the urine cancer stem cells. Cancer Sci 2017; 108:2383-2392. [PMID: 29024204 PMCID: PMC5715251 DOI: 10.1111/cas.13418] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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: 07/31/2017] [Revised: 09/30/2017] [Accepted: 10/02/2017] [Indexed: 12/17/2022] Open
Abstract
Dog spontaneously develop prostate cancer (PC) like humans. Because most dogs with PC have a poor prognosis, they could be used as a translational model for advanced PC in humans. Stem cell‐derived 3‐D organoid culture could recapitulate organ structures and physiology. Using patient tissues, a human PC organoid culture system was established. Recent study has shown that urine cells also possess the characteristic of stem cells. However, urine cell‐derived PC organoids have never been produced. Therefore, we generated PC organoids using the dog urine samples. Urine organoids were successfully generated from each dog with PC. Each organoid showed cystic structures and resembled the epithelial structures of original tissues. Expression of an epithelial cell marker, E‐cadherin, and a myofibloblast marker, α‐SMA, was observed in the urine organoids. The organoids also expressed a basal cell marker, CK5, and a luminal cell marker, CK8. CD49f‐sorted basal cell organoids rapidly grew compared with CD24‐sorted luminal cell organoids. The population of CD44‐positive cells was the highest in both organoids and the original urine cells. Tumors were successfully formed with the injection of the organoids into immunodeficient mice. Treatment with a microtubule inhibitor, docetaxel, but not a cyclooxygenase inhibitor, piroxicam, and an mTOR inhibitor, rapamycin, decreased the cell viability of organoids. Treatment with a Hedgehog signal inhibitor, GANT61, increased the radiosensitivity in the organoids. These findings revealed that PC organoids using urine might become a useful tool for investigating the mechanisms of the pathogenesis and treatment of PC in dogs.
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Affiliation(s)
- Tatsuya Usui
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Shimpei Nishikawa
- Department of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Koji Umata
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Yuki Nemoto
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Tomoya Haraguchi
- Department of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Kazuhito Itamoto
- Department of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Shunsuke Noguchi
- Laboratory of Veterinary Radiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Takashi Mori
- Laboratory of Veterinary Clinical Oncology, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Satomi Iwai
- Laboratory of Small Animal Surgery 2, School of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Takashi Ohama
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Koichi Sato
- Laboratory of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
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Hwang CC, Igase M, Sakurai M, Haraguchi T, Tani K, Itamoto K, Shimokawa T, Nakaichi M, Nemoto Y, Noguchi S, Coffey M, Okuda M, Mizuno T. Oncolytic reovirus therapy: Pilot study in dogs with spontaneously occurring tumours. Vet Comp Oncol 2017; 16:229-238. [PMID: 29076241 DOI: 10.1111/vco.12361] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 06/06/2017] [Revised: 09/17/2017] [Accepted: 09/18/2017] [Indexed: 12/26/2022]
Abstract
Oncolytic virotherapy is a novel treatment involving replication-competent virus in the elimination of cancer. We have previously reported the oncolytic effects of reovirus in various canine cancer cell lines. This study aims to establish the safety profile of reovirus in dogs with spontaneously occurring tumours and to determine a recommended dosing regimen. Nineteen dogs with various tumours, mostly of advanced stages, were treated with reovirus, ranging from 1.0 × 108 to 5.0 × 109 TCID50 given as intratumour injection (IT) or intravenous infusion (IV) daily for up to 5 consecutive days in 1 or multiple treatment cycles. Adverse events (AEs) were graded according to the Veterinary Cooperative Oncology Group- Common Terminology Criteria for Adverse Events (VCOG-CTCAE) v1.1 guidelines. Viral shedding, neutralizing anti-reovirus antibody (NARA) production and immunohistochemical (IHC) detection of reovirus protein in the tumours were also assessed. AE was not observed in most dogs and events were limited to Grade I or II fever, vomiting, diarrhoea and inflammation of the injected tumour. No infectious virus was shed and all dogs had elevated NARA levels post-treatment. Although IHC results were only available in 6 dogs, 4 were detected positive for reovirus protein. In conclusion, reovirus is well-tolerated and can be given safely to tumour-bearing dogs according to the dosing regimen used in this study without significant concerns of viral shedding. Reovirus is also potentially effective in various types of canine tumours.
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Affiliation(s)
- C C Hwang
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - M Igase
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - M Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - T Haraguchi
- Laboratory of Small Animal Clinical Science (Surgical Division), Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - K Tani
- Laboratory of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - K Itamoto
- Laboratory of Small Animal Clinical Science (Surgical Division), Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - T Shimokawa
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - M Nakaichi
- Laboratory of Veterinary Radiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Y Nemoto
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - S Noguchi
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - M Coffey
- Oncolytics Biotech Inc, Calgary, Canada
| | - M Okuda
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan.,Biomedical Science Center for Translational Research, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - T Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.,Biomedical Science Center for Translational Research, The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
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35
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Ohno T, Fukuda S, Niido M, Mizukami H, Ozawa K, Sakurai M. Human-like distal-dominant gradient in the target muscles of transient corticomotoneuronal direct connections in juvenile rodents. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Sakurai M, Ueno Y, Tanaka R, Yamashiro K, Miyamoto N, Hira K, Kurita N, Urabe T, Hattori N. Age stratification and impact of eicosapentaenoic and docosahexaenoic to arachidonic acid ratios in ischemic stroke patients. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kato J, Mori T, Suzuki T, Ito M, Li TC, Sakurai M, Yamane Y, Yamazaki R, Koda Y, Toyama T, Hasegawa N, Okamoto S. Nosocomial BK Polyomavirus Infection Causing Hemorrhagic Cystitis Among Patients With Hematological Malignancies After Hematopoietic Stem Cell Transplantation. Am J Transplant 2017; 17:2428-2433. [PMID: 28295968 DOI: 10.1111/ajt.14271] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/10/2017] [Accepted: 03/01/2017] [Indexed: 01/25/2023]
Abstract
BK polyomavirus (BKPyV) is recognized as a pathogen that causes diseases such as hemorrhagic cystitis and nephritis after allogeneic hematopoietic stem cell transplantation (HSCT) or renal transplantation. BKPyV-associated disease is thought to occur through reactivation under immunosuppression. However, the possibility of its nosocomial transmission and the clinical significance of such transmission have not been elucidated. During a 6-month period, nine adult patients (median age: 47 years) who had hematological disorders and who were treated with HSCT (n = 7) or chemotherapy (n = 2) in a single hematology department developed hemorrhagic cystitis due to BKPyV infection. The polymerase chain reaction products of BKPyV DNA obtained from each patient were sequenced. Of the nine patients, six had subtype I, 2 had subtype IV, and 1 had subtype II or III. In the alignment of sequences, four and two of the six subtype I strains were completely homologous (100%). These results strongly suggest that BKPyV has the potential to cause nosocomial infection within a medical facility, especially among recipients of HSCT. Further studies are clearly warranted to elucidate the route(s) of BKPyV transmission in order to establish optimal infection control.
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Affiliation(s)
- J Kato
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan
| | - T Mori
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan.,Center for Infectious Diseases and Infection Control, Keio University Hospital, Tokyo, Japan
| | - T Suzuki
- Department of Infectious Diseases, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - M Ito
- Department of Infectious Diseases, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - T C Li
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - M Sakurai
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan
| | - Y Yamane
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan
| | - R Yamazaki
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan
| | - Y Koda
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan
| | - T Toyama
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan
| | - N Hasegawa
- Center for Infectious Diseases and Infection Control, Keio University Hospital, Tokyo, Japan
| | - S Okamoto
- Division of Hematology, Keio University School of Medicine, Tokyo, Japan
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Matsushita M, Ozawa K, Suzuki T, Nakamura M, Nakano N, Kanchi S, Ichikawa D, Matsuki E, Sakurai M, Karigane D, Kasahara H, Tsukamoto N, Shimizu T, Mori T, Nakajima H, Okamoto S, Kawakami Y, Hattori Y. CXorf48 is a potential therapeutic target for achieving treatment-free remission in CML patients. Blood Cancer J 2017; 7:e601. [PMID: 28862699 PMCID: PMC5709753 DOI: 10.1038/bcj.2017.84] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 07/24/2017] [Indexed: 12/19/2022] Open
Abstract
Although the introduction of tyrosine kinase inhibitors (TKIs) has improved overall survival of patients with chronic myeloid leukemia (CML), about half of the patients eventually relapse after cessation of TKIs. In contrast, the remainder of the patients maintain molecular remission without TKIs, indicating that the patients' immune system could control proliferation of TKI-resistant leukemic stem cells (LSCs). However, the precise mechanism of immunity against CML-LSCs is not fully understood. We have identified a novel immune target, CXorf48, expressed in LSCs of CML patients. Cytotoxic T cells (CTLs) induced by the epitope peptide derived from CXorf48 recognized CD34+CD38- cells obtained from the bone marrow of CML patients. We detected CXorf48-specific CTLs in the peripheral blood mononuclear cells from CML patients who have discontinued imatinib after maintaining complete molecular remission for more than 2 years. Significantly, the relapse rate of CXorf48-specific CTL-negative patients was 63.6%, compared to 0% in CXorf48-specific CTL-positive patients. These results indicate that CXorf48 could be a promising therapeutic target of LSCs for immunotherapy to obtain durable treatment-free remission in CML patients.
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Affiliation(s)
- M Matsushita
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
| | - K Ozawa
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
| | - T Suzuki
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
| | - M Nakamura
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
| | - N Nakano
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
| | - S Kanchi
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
| | - D Ichikawa
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
| | - E Matsuki
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - M Sakurai
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - D Karigane
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - H Kasahara
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - N Tsukamoto
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University, School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - T Shimizu
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - T Mori
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - H Nakajima
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.,Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Kanazawa-ku, Yokohama, Japan
| | - S Okamoto
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Y Kawakami
- Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University, School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Y Hattori
- Division of Clinical Physiology and Therapeutics, Keio University, Faculty of Pharmacy, Shiabakoen, Minato-ku, Tokyo, Japan
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Sakata T, Mogi K, Sakurai M, Nomura A, Fujii M, Takahara Y. P5431Effect of tricuspid annuloplasty on the improvement of right heart dimensions and function. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sakai O, Sakurai M, Sakai H, Kubo M, Hiraoka H, Baba K, Okuda M, Mizuno T. Molecular cloning of canine Wilms' tumor 1 for immunohistochemical analysis in canine tissues. J Vet Med Sci 2017; 79:1272-1277. [PMID: 28603218 PMCID: PMC5559376 DOI: 10.1292/jvms.17-0229] [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] [Indexed: 11/26/2022] Open
Abstract
Wilms’ tumor 1 (WT1) expression has been investigated in various human cancers as a target molecule for cancer immunotherapy. However, few studies have focused on WT1 expression in dogs. Firstly, cDNA of canine WT1 (cWT1) was
molecularly cloned from normal canine kidney. The cross-reactivity of the anti-human WT1 monoclonal antibody (6F-H2) with cWT1 was confirmed via Western blotting using cells overexpressing cWT1. Immunohistochemical staining
revealed that cWT1 expression was detected in all canine lymphoma tissues and in some normal canine tissues, including the kidney and lymph node. cWT1 is a potential immunotherapy target against canine cancers.
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Affiliation(s)
- Osamu Sakai
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Hiroki Sakai
- Laboratory of Veterinary Pathology, Pathogenetic Veterinary Medicine, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu 501-1193, Japan
| | - Masahito Kubo
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Hiroko Hiraoka
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Kenji Baba
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Masaru Okuda
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, The United Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
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Ishibashi O, Sakuragi K, Fukutomi Y, Kawakami Y, Kamata Y, Sakurai M, Nakayama S, Uchiyama H, Kobayashi H, Kojima H, Inui T. Lip b 1 is a novel allergenic protein isolated from the booklouse, Liposcelis bostrychophila. Allergy 2017; 72:918-926. [PMID: 27873335 DOI: 10.1111/all.13091] [Citation(s) in RCA: 7] [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] [Accepted: 11/18/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND Booklice, belonging to the order Psocoptera, are small household insect pests that are distributed worldwide. Liposcelis bostrychophila, a common home-inhabiting species of booklouse, infests old books, sheets of paper, and stored food. Recent entomological and serological studies demonstrated that L. bostrychophila accounted for the majority of detectable insects in house dust and could be a potent inducer of respiratory allergy. Our recent proteomic analysis identified a potent allergenic protein from L. bostrychophila, designated Lip b 1, and determined its partial amino acid sequences. METHODS Cloning of cDNAs for Lip b 1 was performed by large-scale transcriptome analysis (RNA-seq) and subsequent reverse transcription polymerase chain reaction. The full-length amino acid sequences deduced from Lip b 1 cDNAs were bioinformatically analyzed. The recombinant proteins of glutathione S-transferase (GST)-fused Lip b 1 were analyzed by Western blot and enzyme-linked immunosorbent assay. RESULTS Lip b 1 cDNAs encoding two types of 254-amino acid proteins were cloned. The clones shared 87% identity, and the deduced molecular weights and isoelectric points were consistent with those determined in our previous study. The two types of Lip b 1 proteins in the GST-fused form were similarly reactive with sera from allergic patients sensitized with L. bostrychophila. CONCLUSIONS Lip b 1 is a novel protein possibly causing booklouse allergy.
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Affiliation(s)
- O. Ishibashi
- Department of Applied Life Sciences; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Sakai Japan
| | - K. Sakuragi
- Department of Applied Life Sciences; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Sakai Japan
| | - Y. Fukutomi
- Clinical Research Center for Allergy and Rheumatology; Sagamihara National Hospital; Sagamihara Japan
| | - Y. Kawakami
- Laboratory of Environmental Science; FCG Research Institute Incorporation; Tokyo Japan
| | - Y. Kamata
- Department of Veterinary Medicine; Iwate University; Morioka Japan
| | - M. Sakurai
- Department of Applied Life Sciences; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Sakai Japan
| | - S. Nakayama
- Department of Applied Life Sciences; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Sakai Japan
| | - H. Uchiyama
- NODAI Genome Research Center; Tokyo University of Agriculture; Tokyo Japan
| | - H. Kobayashi
- NODAI Genome Research Center; Tokyo University of Agriculture; Tokyo Japan
| | - H. Kojima
- Department of Agriculture; Tokyo University of Agriculture; Atsugi Japan
| | - T. Inui
- Department of Applied Life Sciences; Graduate School of Life and Environmental Sciences; Osaka Prefecture University; Sakai Japan
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Sakurai M, Yoshita K, Nakamura K, Miura K, Takamura T, Nagasawa SY, Morikawa Y, Kido T, Naruse Y, Nogawa K, Suwazono Y, Sasaki S, Ishizaki M, Nakagawa H. Skipping breakfast and 5-year changes in body mass index and waist circumference in Japanese men and women. Obes Sci Pract 2017; 3:162-170. [PMID: 28702211 PMCID: PMC5478803 DOI: 10.1002/osp4.106] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 03/06/2017] [Accepted: 03/11/2017] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE This study investigated the relationship between frequency of skipping breakfast and annual changes in body mass index (BMI) and waist circumference (WC). METHODS The participants were 4,430 factory employees. BMI and WC were measured repeatedly at annual medical examinations over a 5-year period. The association between frequency of skipping breakfast at the baseline examination and annual changes in anthropometric indices was evaluated using the generalized estimating equation method. RESULTS The mean (standard deviation) BMI was 23.3 (3.0) kg m-2 for men and 21.9 (3.6) kg m-2 for women; and the mean WC was 82.6 (8.7) cm for men and 77.8 (9.8) cm for women. During the follow-up period, mean BMI increased by 0.2 kg m-2 for men and women, and mean WC increased by 1.1 cm for men and 1.0 cm for women. The annual change in the BMI of men who skipped breakfast four to six times per week was 0.061 kg m-2 higher, and that of those who skipped breakfast seven times per week was 0.046 kg m-2 higher, compared with those who did not skip breakfast. Annual changes in the WC of male participants who skipped breakfast seven times per week was 0.248 cm higher than that of those who did not skip breakfast. Skipping breakfast was not associated with changes in BMI or WC in women. CONCLUSIONS Skipping breakfast was closely associated with annual changes in BMI and WC among men, and eating breakfast more than four times per week may prevent the excessive body weight gain associated with skipping breakfast.
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Affiliation(s)
- M Sakurai
- Department of Social and Environmental Medicine Kanazawa Medical University Uchinada Japan.,Health Evaluation Center Kanazawa Medical University Hospital Uchinada Japan
| | - K Yoshita
- Department of Food Science and Nutrition, Graduate School of Human Life Science Osaka City University Osaka Japan
| | - K Nakamura
- Department of Public Health Hokkaido University Graduate School of Medicine Sapporo Japan
| | - K Miura
- Department of Health Science Shiga University of Medical Science Otsu Japan
| | - T Takamura
- Department of Endocrinology and Metabolism Kanazawa University Graduate School of Medical Science Kanazawa Japan
| | - S Y Nagasawa
- Health Evaluation Center Kanazawa Medical University Hospital Uchinada Japan.,Department of Epidemiology and Public Health Kanazawa Medical University Uchinada Japan
| | - Y Morikawa
- Department of Medical Science, School of Nursing Kanazawa Medical University Uchinada Japan
| | - T Kido
- School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences Kanazawa University Kanazawa Japan
| | - Y Naruse
- Department of Social Welfare Toyama College of Welfare ScienceImizu Japan
| | - K Nogawa
- Department of Occupation and Environmental Medicine, Graduate School of Medicine Chiba University Chiba Japan
| | - Y Suwazono
- Department of Occupation and Environmental Medicine, Graduate School of Medicine Chiba University Chiba Japan
| | - S Sasaki
- Department of Social and Preventive Epidemiology, School of Public Health University of Tokyo Tokyo Japan
| | - M Ishizaki
- Department of Social and Environmental Medicine Kanazawa Medical University Uchinada Japan.,Health Evaluation Center Kanazawa Medical University Hospital Uchinada Japan
| | - H Nakagawa
- Medical Research Institute Kanazawa Medical University Uchinada Japan
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Abstract
Angiomyolipoma, a rare benign liver tumor, was observed in a 50-year-old woman examined with US, CT, MR imaging and angiography. Dynamic studies using CT and MR imaging were valuable in differentiating the disease from hepatocellular carcinoma with fat deposits.
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El-Bahrawy A, Zaid A, Sunden Y, Sakurai M, Ito H, Ito T, Morita T. Pathogenesis of Renal Lesions in Chickens After Experimental Infection With 9a5b Newcastle Disease Virus Mutant Isolate. Vet Pathol 2016; 54:94-98. [PMID: 27371537 DOI: 10.1177/0300985816655852] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, we investigated the pathogenesis of Newcastle disease virus (NDV) in the chicken kidney. Twenty-six 32-day-old specific pathogen-free chickens were intranasally inoculated with the 9a5b NDV mutant isolate. Kidney tissue samples, collected at 6 and 12 hours postinoculation (hpi) and 1, 2, 3, 5, and 10 days postinoculation (dpi), were analyzed by histopathology, immunohistochemistry (IHC), reverse transcription polymerase chain reaction (RT-PCR), and virus titration. Histopathologically, tubulointerstitial nephritis was detected in the renal cortex and predominantly in the medulla. Nephrotropism of 9a5b NDV was confirmed by IHC, RT-PCR, and virus isolation. Massive degenerative changes and infiltration of CD3-immunopositive cells accompanied replication of the 9a5b NDV isolate in chicken kidneys. In conclusion, pathological changes that were caused by NDV in chicken kidneys were similar to those caused by avian influenza virus, infectious bronchitis virus, and avian nephritis virus, and this highlights the importance of including NDV in the differential diagnosis of kidney disease in chickens.
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Affiliation(s)
- A El-Bahrawy
- 1 Department of Veterinary Pathology, Faculty of Agriculture, Tottori University, Minami, Koyama-cho, Tottori, Japan.,2 The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.,3 Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Sadat City, Menoufiya, Egypt
| | - A Zaid
- 1 Department of Veterinary Pathology, Faculty of Agriculture, Tottori University, Minami, Koyama-cho, Tottori, Japan.,3 Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Sadat City, Menoufiya, Egypt
| | - Y Sunden
- 1 Department of Veterinary Pathology, Faculty of Agriculture, Tottori University, Minami, Koyama-cho, Tottori, Japan
| | - M Sakurai
- 4 Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - H Ito
- 5 Department of Veterinary Public Health, Faculty of Agriculture, Tottori University, Minami, Koyama-cho, Tottori, Japan
| | - T Ito
- 5 Department of Veterinary Public Health, Faculty of Agriculture, Tottori University, Minami, Koyama-cho, Tottori, Japan
| | - T Morita
- 1 Department of Veterinary Pathology, Faculty of Agriculture, Tottori University, Minami, Koyama-cho, Tottori, Japan
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Mandai S, Matsushita H, Akamatsu S, Maeda Y, Gohda Y, Sakurai M, Matsumoto Y. Percutaneous Transluminal Angioplasty for Intracranial Atherosclerotic Stenosis. Interv Neuroradiol 2016; 4 Suppl 1:53-6. [DOI: 10.1177/15910199980040s109] [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] [Received: 08/18/1998] [Accepted: 08/25/1998] [Indexed: 11/15/2022] Open
Abstract
Eleven patients with symptomatic intracranial atherosclerotic stenotic lesions underwent percutaneous transluminal angioplasty (PTA). Seven patients had stenosis in M1 segment of the middle cerebral artery (MCA), two in the cavernous internal carotid artery, one in M2 segment of the MCA and one in the P2 segment of the posterior cerebral artery. Initial successful dilatation (less than 50% residual stenosis) was obtained in nine patients (81.8%). Permanent neurological deficit related to PTA was seen in one patient and transient symptoms were observed in two. Re-stenosis was revealed in two cases (18.2%) in the early follow-up period. All patients with successful dilatation and without re-stenosis never had TIA or stroke after PTA. Intracranial PTA is an effective procedure, but several problems remain to be solved.
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Affiliation(s)
- S. Mandai
- Department of Neurosurgery, Kagawa Prefectural Central Hospital; Takamatsu
| | - H. Matsushita
- Department of Neurosurgery, Kagawa Prefectural Central Hospital; Takamatsu
| | - S. Akamatsu
- Department of Neurosurgery, Kagawa Prefectural Central Hospital; Takamatsu
| | - Y. Maeda
- Department of Neurosurgery, Kagawa Prefectural Central Hospital; Takamatsu
| | - Y. Gohda
- Department of Neurosurgery, Kagawa Prefectural Central Hospital; Takamatsu
| | - M. Sakurai
- Department of Neurosurgery, Kagawa Prefectural Central Hospital; Takamatsu
| | - Y. Matsumoto
- Department of Neurosurgery, Kagawa Prefectural Central Hospital; Takamatsu
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Shosu K, Sakurai M, Inoue K, Nakagawa T, Sakai H, Morimoto M, Okuda M, Noguchi S, Mizuno T. Programmed Cell Death Ligand 1 Expression in Canine Cancer. In Vivo 2016; 30:195-204. [PMID: 27107075] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 03/04/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Antibody therapy targeting programmed cell death-1 (PD-1) and programmed cell death-ligand 1 (PD-L1) is a promising therapy in human cancer, but only limited information on PD-L1 expression in canine tumors is available. MATERIALS AND METHODS PD-L1 expression was examined in 31 canine tumor cell lines of various origins by flow cytometry and western blotting, and in canine tumor and normal tissue specimens by immunohistochemistry. RESULTS PD-L1 was only expressed on the cell surface of a small number of cell lines but was found expressed within the cells of almost all cell lines. Immunohistochemistry revealed that PD-L1 is frequently expressed in malignant melanoma, mammary gland tumor, mast cell tumor and lymphoma, but less frequently in soft-tissue sarcoma and hemangiosarcoma. PD-L1 was also expressed in some of the cells of normal canine tissue specimens. CONCLUSION Canine tumors with PD-L1 expression that were identified in this study are potential candidates for antiPD-1 and antiPD-L1 therapy.
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Affiliation(s)
- Kazuha Shosu
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Masashi Sakurai
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Kumi Inoue
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hiroki Sakai
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Masahiro Morimoto
- Laboratory of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Masaru Okuda
- Laboratory of Veterinary Internal Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan Biomedical Science Center for Translational Research, The United Graduate School of Veterinary Science, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Shunsuke Noguchi
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan Biomedical Science Center for Translational Research, The United Graduate School of Veterinary Science, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan Biomedical Science Center for Translational Research, The United Graduate School of Veterinary Science, Yamaguchi University, Yoshida, Yamaguchi, Japan
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Abstract
A 9-year-old male mixed breed cat showed chronic progressive neurological symptoms, which are represented by ataxia and seizures. At necropsy, spinal roots and spinal ganglions at the level of sixth cervical nerve to second thoracic nerve were bilaterally swollen and replaced by white mass lesions. Right brachial plexus and cranial nerves (III, V and VII) were also swollen. A mass lesion was found in the right frontal lobe of the cerebrum. Histologically, neoplastic lymphocytes extensively involved the peripheral nerves, and they infiltrated into the cerebral and spinal parenchyma according to the peripheral nerve tract. Immunohistochemically, most neoplastic lymphocytes were positive for CD20. The clinical and histological features in this case resemble those of neurolymphomatosis in humans.
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Affiliation(s)
- Masashi Sakurai
- Department of Veterinary Pathology, Yamaguchi University, Yamaguchi, Yamaguchi 753-8511, Japan
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48
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Nagai E, Horiuchi K, Sakamoto A, Omi Y, Yoshida Y, Tokumitsu H, Sakurai M, Haniu K, Okamoto T. 99P Predicting no metastases to axillary lymph nodes beyond positive sentinel nodes in patients with breast cancer: a simple rule. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv519.48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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49
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Sakamoto A, Okamoto T, Haniu K, Nagai E, Sakurai M, Tokumitsu H, Yoshida Y, Omi Y, Horiuchi K. 80P Correlation of immediate reconstruction with clinical outcome to locally advanced breast cancer. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv519.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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50
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Kasahara H, Mori T, Kato J, Koda Y, Kohashi S, Kikuchi T, Sakurai M, Yamane Y, Mikami S, Kameyama K, Takahashi Y, Okamoto S. Post-transplant lymphoproliferative disorder of the adrenal gland after allogeneic hematopoietic stem cell transplantation: report of two cases and literature review. Transpl Infect Dis 2015; 17:909-14. [DOI: 10.1111/tid.12461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 08/24/2015] [Accepted: 08/26/2015] [Indexed: 12/01/2022]
Affiliation(s)
- H. Kasahara
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - T. Mori
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - J. Kato
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - Y. Koda
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - S. Kohashi
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - T. Kikuchi
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - M. Sakurai
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - Y. Yamane
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
| | - S. Mikami
- Division of Diagnostic Pathology; Keio University Hospital; Tokyo Japan
| | - K. Kameyama
- Division of Diagnostic Pathology; Keio University Hospital; Tokyo Japan
| | - Y. Takahashi
- Department of Pediatrics; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - S. Okamoto
- Division of Hematology; Department of Medicine; Keio University Hospital; Tokyo Japan
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