1
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Hamu-Tanoue A, Takagi K, Taketomi Y, Miki Y, Nishito Y, Kano K, Aoki J, Matsuyama T, Kondo K, Dotake Y, Matsuyama H, Machida K, Murakami M, Inoue H. Group III secreted phospholipase A 2 -driven lysophospholipid pathway protects against allergic asthma. FASEB J 2024; 38:e23428. [PMID: 38236184 DOI: 10.1096/fj.202301976r] [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: 09/29/2023] [Revised: 12/21/2023] [Accepted: 01/03/2024] [Indexed: 01/19/2024]
Abstract
Asthma is a chronic inflammatory disease of the airways characterized by recurrent episodes of airway obstruction, hyperresponsiveness, remodeling, and eosinophilia. Phospholipase A2 s (PLA2 s), which release fatty acids and lysophospholipids from membrane phospholipids, have been implicated in exacerbating asthma by generating pro-asthmatic lipid mediators, but an understanding of the association between individual PLA2 subtypes and asthma is still incomplete. Here, we show that group III-secreted PLA2 (sPLA2 -III) plays an ameliorating, rather than aggravating, role in asthma pathology. In both mouse and human lungs, sPLA2 -III was expressed in bronchial epithelial cells and decreased during the asthmatic response. In an ovalbumin (OVA)-induced asthma model, Pla2g3-/- mice exhibited enhanced airway hyperresponsiveness, eosinophilia, OVA-specific IgE production, and type 2 cytokine expression as compared to Pla2g3+/+ mice. Lipidomics analysis showed that the pulmonary levels of several lysophospholipids, including lysophosphatidylcholine, lysophosphatidylethanolamine, and lysophosphatidic acid (LPA), were decreased in OVA-challenged Pla2g3-/- mice relative to Pla2g3+/+ mice. LPA receptor 2 (LPA2 ) agonists suppressed thymic stromal lymphopoietin (TSLP) expression in bronchial epithelial cells and reversed airway hyperresponsiveness and eosinophilia in Pla2g3-/- mice, suggesting that sPLA2 -III negatively regulates allergen-induced asthma at least by producing LPA. Thus, the activation of the sPLA2 -III-LPA pathway may be a new therapeutic target for allergic asthma.
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Affiliation(s)
- Asako Hamu-Tanoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Koichi Takagi
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yoshitaka Taketomi
- Laboratory of Microenvironmental and Metabolic Health Science, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Center for Basic Technology Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Yoshimi Miki
- Laboratory of Microenvironmental and Metabolic Health Science, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasumasa Nishito
- Center for Basic Technology Research, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Kuniyuki Kano
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Junken Aoki
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Takahiro Matsuyama
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kiyotaka Kondo
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yoichi Dotake
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiromi Matsuyama
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kentaro Machida
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Makoto Murakami
- Laboratory of Microenvironmental and Metabolic Health Science, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- AMED-CREST, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Hiromasa Inoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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2
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Matsuyama T, Tomioka Y, Matsuyama H, Kamenohara Y, Tanigawa K, Dotake Y, Hagihara Y, Takagi K, Machida K, Inoue H. Severe asthma remaining well-controlled after mepolizumab discontinuation: A case report and literature review. Respirol Case Rep 2023; 11:e01158. [PMID: 37180095 PMCID: PMC10173049 DOI: 10.1002/rcr2.1158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Mepolizumab, a humanized anti-IL-5 monoclonal antibody used for severe asthma, results in a reduced rate of asthma exacerbation, improved lung function, reduced oral corticosteroid use, and improved quality of life. A 62-year-old man using high-dose inhaled corticosteroid visited our hospital because of poorly-controlled asthma. He had eosinophilia in peripheral blood and sputum, and high levels of fraction of exhaled nitric oxide. Therefore, he was treated with mepolizumab for severe asthma. Mepolizumab treatment resulted in significantly improved pulmonary function and reduced frequencies of asthma exacerbations. Because of his good asthma control, mepolizumab treatment was discontinued after 3 years. Since discontinuing mepolizumab, his asthma control has remained without exacerbation. Previous studies suggest that mepolizumab should be continued to sustain clinical benefits. However, cases of long-term controlled asthma have not been reported after mepolizumab withdrawal, and our case may be instructive.
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Affiliation(s)
- Takahiro Matsuyama
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Yuya Tomioka
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Hiromi Matsuyama
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Yusuke Kamenohara
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Kengo Tanigawa
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Yoichi Dotake
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Yoko Hagihara
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Koichi Takagi
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Kentaro Machida
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
| | - Hiromasa Inoue
- Department of Respiratory MedicineKagoshima University Graduate School of Medical and Dental SciencesKagoshimaJapan
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3
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Matsuyama T, Machida K, Mizuno K, Matsuyama H, Dotake Y, Shinmura M, Takagi K, Inoue H. The Functional Role of Group 2 Innate Lymphoid Cells in Asthma. Biomolecules 2023; 13:893. [PMID: 37371472 DOI: 10.3390/biom13060893] [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] [Received: 04/30/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Asthma is a heterogeneous disease characterized by chronic airway inflammation. Group 2 innate lymphoid cells (ILC2) play an important role in the pathogenesis of asthma. ILC2s lack antigen-specific receptors and respond to epithelial-derived cytokines, leading to the induction of airway eosinophilic inflammation in an antigen-independent manner. Additionally, ILC2s might be involved in the mechanism of steroid resistance. Numerous studies in both mice and humans have shown that ILC2s induce airway inflammation through inflammatory signals, including cytokines and other mediators derived from immune or non-immune cells. ILC2s and T helper type 2 (Th2) cells collaborate through direct and indirect interactions to organize type 2 immune responses. Interestingly, the frequencies or numbers of ILC2 are increased in the blood and bronchoalveolar lavage fluid of asthma patients, and the numbers of ILC2s in the blood and sputum of severe asthmatics are significantly larger than those of mild asthmatics. These findings may contribute to the regulation of the immune response in asthma. This review article highlights our current understanding of the functional role of ILC2s in asthma.
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Affiliation(s)
- Takahiro Matsuyama
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Kentaro Machida
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Keiko Mizuno
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Hiromi Matsuyama
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Yoichi Dotake
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Masahiro Shinmura
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Koichi Takagi
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Hiromasa Inoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
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4
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Matsuyama T, Matsuyama H, Dotake Y, Takagi K, Machida K, Inoue H. The Therapeutic Potential for Targeting Group 2 Innate Lymphoid Cells in Asthma. Front Immunol 2022; 13:930862. [PMID: 35911708 PMCID: PMC9327784 DOI: 10.3389/fimmu.2022.930862] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/14/2022] [Indexed: 11/22/2022] Open
Abstract
T helper type 2 cells (Th2 cells) and group 2 innate lymphoid cells (ILC2s) play an important role in the pathophysiology of asthma, including airway eosinophilic inflammation. ILC2s are activated by epithelial-derived cytokines [interleukin-25 (IL-25), IL-33, and thymic stromal lymphopoietin (TSLP)] from airway epithelial cells, leading to the release of high amounts of type 2 cytokines, such as IL-5 and IL-13. ILC2s induce airway inflammation in an antigen-independent manner, and ILC2s are considered to be involved in the pathogenesis of asthma exacerbation. Furthermore, ILC2 activation might also confer steroid resistance. Many recent studies in humans and mice are increasingly demonstrating that the function of ILC2s is regulated not just by epithelial-derived cytokines but by a variety of cytokines and mediators derived from innate immune cells. Furthermore, the biologics targeting these cytokines and/or their receptors have been shown to reduce asthma exacerbations and improve lung function and quality of life in asthmatics. This article reviews the current treatment landscape for type 2 airway inflammation in asthma and discusses the therapeutic potential for targeting ILC2s.
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5
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Shiraishi K, Matsuyama H. High inguinal microsurgical denervation of the spermatic cord for chronic scrotal content pain for pediatric patients. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.515] [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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6
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Yokoyama S, Kikuchi R, Matsuyama H, Ohashi K, Watarai R, Hayashi G, Numata Y, Hagiwara T, Kobayashi T, Ando Y, Matsushita T. M022 Performance evaluation of microslide and open channel on VITROS XT 7600 – Establish a clinical testing system for clinical chemistry in the event of a disaster-. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.313] [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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7
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Miyake M, Marugami N, Fujiwara Y, Komura K, Inamoto T, Azuma H, Matsumoto H, Matsuyama H, Nishimura N, Hori S, Owari T, Itami Y, Nakai Y, Fujimoto K. Down-grading of ipsilateral hydronephrosis by neoadjuvant chemotherapy is associated with better oncological outcomes after radical nephroureterectomy in patients with ureteral cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34094-5] [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: 10/23/2022] Open
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8
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Wang N, Fang L, Wang J, Zhang P, Wang W, Lin C, Xiao L, Chen C, Zhao B, Abdallah H, Matsuyama H, Zhu B. pH‐dependent property of carboxyl‐based ultrafiltration membranes fabricated from poly(vinyl chloride‐
r
‐acrylic acid). J Appl Polym Sci 2018. [DOI: 10.1002/app.47068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- N.‐C. Wang
- Department of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - L.‐F. Fang
- Department of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - J. Wang
- Department of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - P. Zhang
- Hainan Litree Purifying Technology Co., Ltd. Haikou 571126 China
| | - W.‐B. Wang
- Department of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - C.‐E. Lin
- Department of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
| | - L. Xiao
- Hainan Litree Purifying Technology Co., Ltd. Haikou 571126 China
| | - C. Chen
- Hainan Litree Purifying Technology Co., Ltd. Haikou 571126 China
| | - B. Zhao
- Hainan Litree Purifying Technology Co., Ltd. Haikou 571126 China
| | - H. Abdallah
- Chemical Engineering and Pilot Plant Department, Engineering Research DivisionNational Research Centre 33 El Bohouth Street (Former El Tahrir Street), Dokki, Giza 12622 Egypt
| | - H. Matsuyama
- Center for Membrane and Film Technology, Department of Chemical Science and EngineeringKobe University Rokkodaicho 1‐1, Nada, Kobe 657‐8501 Japan
| | - B.‐K. Zhu
- Department of Polymer Science and EngineeringZhejiang University Hangzhou 310027 China
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9
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Haga S, Miyaji M, Nakano M, Ishizaki H, Matsuyama H, Katoh K, Roh SG. Changes in the expression of α-tocopherol-related genes in liver and mammary gland biopsy specimens of peripartum dairy cows. J Dairy Sci 2018; 101:5277-5293. [PMID: 29605316 DOI: 10.3168/jds.2017-13630] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 02/17/2018] [Indexed: 11/19/2022]
Abstract
Blood α-tocopherol (α-Toc) concentrations decline gradually throughout the prepartum period, reaching the nadir after calving in dairy cows. The 6 α-Toc-related molecules [α-Toc transfer protein (TTPA); afamin; scavenger receptor class B, Type I; ATP-binding cassette transporter A1; tocopherol-associated protein (SEC14L2); and cytochrome P450 family 4, subfamily F, polypeptide 2 (CYP4F2)] are expressed in liver and other peripheral tissues. These molecules could regulate α-Toc transport, blood concentrations, and metabolism of α-Toc. Therefore, the aim of this study was to evaluate the changes in the expression of α-Toc-related genes in liver and mammary gland tissues of dairy cows around calving, which have remained elusive until now. In experiment (Exp.) 1, 28 multiparous Holstein cows were used (from -5 to 6 wk relative to parturition) to monitor the changes in dietary α-Toc intake, blood concentrations of α-Toc, and lipoproteins; in Exp. 2, 7 peripartum Holstein cows were used (from -4 to 4 wk relative to parturition) for liver tissue biopsy; and in Exp. 3, 10 peripartum Holstein cows were used (from -8 to 6 wk relative to parturition) to carry out the mammary gland tissue biopsy and milk sampling. In Exp. 1, the serum α-Toc concentrations declined gradually with decreasing amount of α-Toc intake and plasma high-density lipoprotein concentrations toward calving time. However, in the early lactation period after calving, serum α-Toc concentrations remained at a lower concentration despite the recovery of α-Toc intake and plasma high-density lipoprotein concentrations. In Exp. 2, just after calving, the TTPA, SEC14L2, afamin, and albumin mRNA expression levels in the liver were temporarily downregulated, and the hepatic mRNA levels of endoplasmic reticulum stress-induced unfolded protein response markers and acute-phase response marker increased at calving. In Exp. 3, the concentrations of α-Toc in colostrum were greater than those in precolostrum (samples were collected at wk -1 relative to parturition) and mature milk. The expression of TTPA, SEC14L2, and CYP4F2 mRNA in bovine mammary gland tissue was detected. However, TTPA and SEC14L2 mRNA expressions showed the opposite trends: the expression levels of TTPA mRNA peaked whereas SEC14L2 mRNA reached a nadir at calving. These results indicate that the expression of α-Toc-related genes involved in specific α-Toc transfer and metabolism in the liver and mammary gland are altered during calving. Moreover, these changes might be associated with the maintenance of lower serum α-Toc concentrations after calving.
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Affiliation(s)
- S Haga
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan.
| | - M Miyaji
- Animal Feeding and Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - M Nakano
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - H Ishizaki
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - H Matsuyama
- Animal Feeding and Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - K Katoh
- Lab of Animal Physiology, Graduate School of Agriculture Science, Tohoku University, 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan
| | - S G Roh
- Lab of Animal Physiology, Graduate School of Agriculture Science, Tohoku University, 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan
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10
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Shiraishi K, Shindo A, Harada A, Kurumizaka H, Kimura H, Ohkawa Y, Matsuyama H. Roles of histone H3.5 in human spermatogenesis and spermatogenic disorders. Andrology 2017; 6:158-165. [DOI: 10.1111/andr.12438] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/06/2017] [Accepted: 10/02/2017] [Indexed: 12/11/2022]
Affiliation(s)
- K. Shiraishi
- Department of Urology; Yamaguchi University School of Medicine; Ube Yamaguchi Japan
| | - A. Shindo
- Department of Urology; Yamaguchi University School of Medicine; Ube Yamaguchi Japan
| | - A. Harada
- Division of Transcriptomics; Medical Institute of Bioregulation; Kyushu University; Fukuoka Japan
| | - H. Kurumizaka
- Laboratory of Structural Biology; Graduate School of Advanced Science and Engineering; Waseda University; Tokyo Japan
| | - H. Kimura
- Cell Biology Unit; Institute of Innovative Research; Tokyo Institute of Technology; Tokyo Japan
| | - Y. Ohkawa
- Division of Transcriptomics; Medical Institute of Bioregulation; Kyushu University; Fukuoka Japan
| | - H. Matsuyama
- Department of Urology; Yamaguchi University School of Medicine; Ube Yamaguchi Japan
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11
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Narita Y, Fukuroku K, Matsuyama H, Ii Y, Tomimoto H, Maeda M. Two cases with long tinel sign on the median nerve due to a proximal tumor and the MR neurography. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2278] [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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12
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Nakagawa K, Yamashita H, Saeki D, Yoshioka T, Shintani T, Kamio E, Kreissl HT, Tsang SCE, Sugiyama S, Matsuyama H. Niobate nanosheet membranes with enhanced stability for nanofiltration. Chem Commun (Camb) 2017; 53:7929-7932. [DOI: 10.1039/c7cc03911e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Niobate nanosheets are assembled into thin membranes by a vacuum filtration.
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Affiliation(s)
- K. Nakagawa
- Center for Membrane and Film Technology
- Graduate School of Science, Technology and Innovation
- Kobe University
- Kobe 657-8501
- Japan
| | - H. Yamashita
- Department of Science and Technology
- Faculty of Science and Technology
- Tokushima University
- Tokushima 770-8506
- Japan
| | - D. Saeki
- Center for Membrane and Film Technology
- Department of Chemical Science and Engineering
- Kobe University
- Kobe 657-8501
- Japan
| | - T. Yoshioka
- Center for Membrane and Film Technology
- Graduate School of Science, Technology and Innovation
- Kobe University
- Kobe 657-8501
- Japan
| | - T. Shintani
- Center for Membrane and Film Technology
- Graduate School of Science, Technology and Innovation
- Kobe University
- Kobe 657-8501
- Japan
| | - E. Kamio
- Center for Membrane and Film Technology
- Department of Chemical Science and Engineering
- Kobe University
- Kobe 657-8501
- Japan
| | | | | | - S. Sugiyama
- Department of Science and Technology
- Faculty of Science and Technology
- Tokushima University
- Tokushima 770-8506
- Japan
| | - H. Matsuyama
- Center for Membrane and Film Technology
- Department of Chemical Science and Engineering
- Kobe University
- Kobe 657-8501
- Japan
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13
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Oka S, Shiraishi K, Matsuyama H. Effects of human chorionic gonadotropin on testicular interstitial tissues in men with non-obstructive azoospermia. Andrology 2016; 5:232-239. [DOI: 10.1111/andr.12292] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 08/18/2016] [Accepted: 09/12/2016] [Indexed: 12/16/2022]
Affiliation(s)
- S. Oka
- Department of Urology; Yamaguchi University School of Medicine; Yamaguchi Japan
| | - K. Shiraishi
- Department of Urology; Yamaguchi University School of Medicine; Yamaguchi Japan
| | - H. Matsuyama
- Department of Urology; Yamaguchi University School of Medicine; Yamaguchi Japan
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14
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Matsuyama H, Yamamoto Y, Kawai Y, Fujita Y, Hamamoto Y, Matsuyama K, Otori T, Haginaka J. Prediction of total clearance by UGT1A and ABC genes polymorphisms can predict tumor response and proteinuria in axitinib treatment for advanced renal cell carcinoma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw373.35] [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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15
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Sun Y, Rajabzadeh S, Ma W, Zhou Z, Kakihana Y, Ohmukai Y, Miki J, Matsuyama H. Preparation of PVDF/poly(tetrafluoroethylene-co-vinyl alcohol) blend membranes with antifouling propensities via nonsolvent induced phase separation method. J Appl Polym Sci 2016. [DOI: 10.1002/app.43780] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Y. Sun
- Center for Membrane and Film Technology; Department of Chemical Science & Engineering; Kobe University; 1-1 Rokkodai, Nada Kobe 657-8501 Japan
| | - S. Rajabzadeh
- Center for Membrane and Film Technology; Department of Chemical Science & Engineering; Kobe University; 1-1 Rokkodai, Nada Kobe 657-8501 Japan
| | - W. Ma
- Center for Membrane and Film Technology; Department of Chemical Science & Engineering; Kobe University; 1-1 Rokkodai, Nada Kobe 657-8501 Japan
| | - Z. Zhou
- Center for Membrane and Film Technology; Department of Chemical Science & Engineering; Kobe University; 1-1 Rokkodai, Nada Kobe 657-8501 Japan
| | - Y. Kakihana
- Center for Membrane and Film Technology; Department of Chemical Science & Engineering; Kobe University; 1-1 Rokkodai, Nada Kobe 657-8501 Japan
| | - Y. Ohmukai
- DAIKIN Industries, LTD, Chemical Research and Develompent Center; 1-1, Nishi-Hitotsuya Settsu Osaka 566-8585 Japan
| | - J. Miki
- DAIKIN Industries, LTD, Chemical Research and Develompent Center; 1-1, Nishi-Hitotsuya Settsu Osaka 566-8585 Japan
| | - H. Matsuyama
- Center for Membrane and Film Technology; Department of Chemical Science & Engineering; Kobe University; 1-1 Rokkodai, Nada Kobe 657-8501 Japan
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Inokuchi J, Kuroiwa K, Naito S, Kakehi Y, Sugimoto M, Tanikawa T, Fujimoto H, Gotoh M, Masumori N, Ogawa O, Etoh M, Ohyama C, Yamaguchi A, Matsuyama H, Ichikawa T, Asano T, Takenaka A, Fujimoto K, Yamaguchi R, Habuchi T, Hashine K, Arai Y, Nagaoka A, Nishiyama H, Shinohara N, Niwakawa M, Egawa S, Ozono S, Kawano Y, Ishizuka O, Nishimura K, Tochigi T, Sugimura Y, Mizusawa J, Eba J. 801 The impact of ureteral ligation on clinical outcome during radical nephroureterectomy for upper urinary tract urothelial carcinoma: Multi-institutional case series study JCOG1110A. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/s1569-9056(16)60803-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kawai Y, Osawa T, Kobayashi K, Inoue R, Yamamoto Y, Matsumoto H, Nagao K, Hara T, Sakano S, Nagamori S, Matsuyama H. Factors Prognostic for Survival in Japanese Patients Treated with Sunitinib as First-line Therapy for Metastatic Clear Cell Renal Cell Cancer. Asian Pac J Cancer Prev 2015; 16:5687-90. [DOI: 10.7314/apjcp.2015.16.14.5687] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Nishijima J, Hara T, Ikemoto K, Oga A, Kobayashi K, Kawai Y, Matsumoto H, Nagao K, Sasaki K, Gkoleizakis V, Fichtner J, Matsuyama H. Clinical significance of ERG rearrangement subtype and its association with increased p53 expression in Japanese and German prostate cancer. Neoplasma 2015; 62:278-87. [PMID: 25591593 DOI: 10.4149/neo_2015_033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED This study investigated differences in prevalence of the androgen-regulated transmembrane protease serine 2 (TMPRSS2) and ETS transcription factor family member, v-ets erythroblastosis virus E26 oncogene homolog (ERG) fusion gene (TMPRSS2-ERG fusions) in clinically localized prostate cancer Japanese and German patients. A total of 105 specimens, including 69 Japanese and 36 German patients, were collected. The status of TMPRSS2-ERG fusion was determined by fluorescence in situ hybridization, and correlations of the TMPRSS2-ERG fusion with clinicopathological characteristics and immunohistochemistry were studied. Gene fusions were identified in 20% (14/69) of Japanese and 53% (19/36) of German patients (P < 0.001). The difference in the type of gene fusion between the two ethnic groups was statistically significant (P=0.024). Overexpression of ERG protein was significantly associated with gene fusion. Biochemical recurrence was significantly higher in patients with ERG overexpression than in those without, and not related to TMPRSS2-ERG fusion status. Interestingly, two types of gene fusions (deletion and increase of copy number) were significantly associated with increased p53 expression (P = 0.005). Association of specific gene fusions harboring higher genomic alterations with p53 expression levels suggests that p53 mutation might drive more aggressive arrangements of TMPRSS2-ERG fusion in prostate cancer. KEYWORDS ERG, p53, prostate cancer, TMPRSS2-ERG fusion.
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Shiraishi K, Ishikawa T, Watanabe N, Iwamoto T, Matsuyama H. Salvage hormonal therapy after failed microdissection testiculr sperm extraction: a multi-institutional prospective study. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.640] [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: 10/24/2022]
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Kato Y, Shiraishi K, Matsuyama H. Expression of testicular androgen receptor in non-obstructive azoospermia and its change after hormonal therapy. Andrology 2014; 2:734-40. [DOI: 10.1111/j.2047-2927.2014.00240.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/03/2014] [Accepted: 05/12/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Y. Kato
- Department of Urology; Yamaguchi University School of Medicine; Ube Japan
| | - K. Shiraishi
- Department of Urology; Yamaguchi University School of Medicine; Ube Japan
| | - H. Matsuyama
- Department of Urology; Yamaguchi University School of Medicine; Ube Japan
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Miyaji M, Matsuyama H, Hosoda K. Effect of substituting brown rice for corn on lactation and digestion in dairy cows fed diets with a high proportion of grain. J Dairy Sci 2014; 97:952-60. [DOI: 10.3168/jds.2013-7046] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 11/02/2013] [Indexed: 11/19/2022]
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Kasahara S, Kamio E, Yoshizumi A, Matsuyama H. Polymeric ion-gels containing an amino acid ionic liquid for facilitated CO2transport media. Chem Commun (Camb) 2014; 50:2996-9. [DOI: 10.1039/c3cc48231f] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Shinjo E, Shiraishi K, Matsuyama H. The effect of human chorionic gonadotropin-based hormonal therapy on intratesticular testosterone levels and spermatogonial DNA synthesis in men with non-obstructive azoospermia. Andrology 2013; 1:929-35. [DOI: 10.1111/j.2047-2927.2013.00141.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 08/17/2013] [Accepted: 09/09/2013] [Indexed: 11/30/2022]
Affiliation(s)
- E. Shinjo
- Department of Urology; Yamaguchi University; School of Medicine; Ube Japan
| | - K. Shiraishi
- Department of Urology; Yamaguchi University; School of Medicine; Ube Japan
| | - H. Matsuyama
- Department of Urology; Yamaguchi University; School of Medicine; Ube Japan
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Tanahashi Y, Waki N, Unno T, Matsuyama H, Iino S, Kitazawa T, Yamada M, Komori S. Roles of M2 and M3 muscarinic receptors in the generation of rhythmic motor activity in mouse small intestine. Neurogastroenterol Motil 2013; 25:e687-97. [PMID: 23889852 DOI: 10.1111/nmo.12194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 06/26/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND The roles of M2 and M3 muscarinic receptor subtypes in the regulation of gut motor activity were investigated. METHODS We simultaneously recorded changes in the intraluminal pressure (IP) and longitudinal tension (LT) in small intestinal segments from M2 or M3 receptor knockout (KO) and wild-type (WT) mice. KEY RESULTS In the WT preparations, luminal distension induced a continuous rhythmic contractile activity that was characterized by synchronous rises in IP and LT, occurring periodically at a constant interval. Tetrodotoxin completely abolished the response, whereas atropine either abolished or attenuated it. In the majority of the M2 KO preparations, however, no rhythmic activity was observed in response to the luminal distention, even though networks of enteric neurons and interstitial cells of Cajal (ICC) seemed to be intact. Where rhythmic activity did occur in M2 KO preparations, it was atropine resistant. In the M3 KO preparations, the IP and LT were synchronously changed by the luminal distention, but the changes occurred at irregular intervals. The W/W(v) mutant preparations, which lack ICC in the myenteric plexus (ICC-MY), showed results similar to those of the M3 KO preparations. In some of the M2 /M3 double-KO preparations, rhythmic activity was not observed, but in the others, an atropine-resistant rhythmicity appeared. CONCLUSIONS & INFERENCES These results suggest that M2 and M3 muscarinic receptors differentially regulate the intestinal motor activity: M2 receptors play an essential role in the generation of rhythmic motor activity, and M3 receptors have a modulatory role in controlling the periodicity of the rhythmic activity together with the ICC-MY.
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Affiliation(s)
- Y Tanahashi
- Department of Animal Medical Sciences, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, Japan
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Suzuki HI, Matsuyama H, Noguchi M, Yao T, Komatsu N, Mano H, Sugimoto K, Miyazono K. Computational dissection of distinct microRNA activity signatures associated with peripheral T cell lymphoma subtypes. Leukemia 2013; 27:2107-11. [PMID: 23594704 DOI: 10.1038/leu.2013.121] [Citation(s) in RCA: 14] [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] [Indexed: 12/19/2022]
Affiliation(s)
- H I Suzuki
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
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Shiraishi K, Matsuyama H. Human chorionic gonadotropin-based hormonal therapy in men after failed microdissection testicular sperm extraction. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.874] [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: 10/17/2022]
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Matsuyama H, Sakano S. UP-01.062 Validation of EAU Guideline Risk Classification for Japanese Non-Muscle Invasive Bladder Cancer. Urology 2011. [DOI: 10.1016/j.urology.2011.07.614] [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: 10/16/2022]
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28
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Sakano S, Hinoda Y, Okayama N, Kawai Y, Nishijima J, Miyachika Y, Matsumoto H, Nagao K, Hara T, Matsuyama H. UP-01.174 Methylenetetrahydrofolate Reductase Genotype and Haplotype May Be Associated with the Aggressiveness and Prognosis of Clear Cell Renal Cell Carcinoma. Urology 2011. [DOI: 10.1016/j.urology.2011.07.725] [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: 11/17/2022]
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Nagao K, Matsuyama H, Nishijima J, Miyachika Y, Ito H, Hara T, Uchiyama K, Sakano S. MP-06.16 Preoperative eGFR May Be the Sole Predictive Factor for Stage 3 Chronic Kidney Disease After Nephrectomy in Japanese Patients. Urology 2011. [DOI: 10.1016/j.urology.2011.07.140] [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: 11/26/2022]
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Hara T, Nishijima J, Miyachika Y, Yamamoto Y, Sakano S, Matsuyama H. Primary cT2 Bladder Cancer: A Good Candidate for Radiotherapy Combined with Cisplatin for Bladder Preservation. Jpn J Clin Oncol 2011; 41:902-7. [DOI: 10.1093/jjco/hyr064] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Nagao K, Yamamoto Y, Hara T, Komatsu H, Inoue R, Matsuda K, Matsumoto H, Hara T, Sakano S, Baba Y, Matsuyama H. Ki67 and BUBR1 May Discriminate Clinically Insignificant Prostate Cancer in the PSA Range <4 ng/ml. Jpn J Clin Oncol 2011; 41:555-64. [DOI: 10.1093/jjco/hyq233] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [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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Matsuyama H, Tomimatsu T, Tatsumura M, Sugino N, Naito K. Surgical repair of pelvic-floor prolapse: lessons learned from longitudinal follow-up of quality-of-life survey. Aktuelle Urol 2010; 41 Suppl 1:S30-3. [PMID: 20094949 DOI: 10.1055/s-0029-1224658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Scant evidence has been reported on the evaluation of quality-of-life (QOL) in patients who had undergone surgical treatment due to pelvic floor prolapse including cystocele. The aim of this study is to evaluate the impact of surgical intervention on patients' QOL before and after surgery. METHODS Between 1997 and 2007, 135 patients (median age: 66.6 years) with pelvic floor prolapse including cystocele underwent bladder neck suspension with anterior/posterior colporrhaphy. The follow-up period was 39.6 months. Seventy-two patients (53 %) had urinary incontinence. The cystocele was graded as mild (grade 2), moderate (grade 3), and severe (grade 4) in 35, 60, and 40, respectively, according to the Baden-Walker classification. A urodynamic study was performed in 69 patients (51 %) who had obstructive symptoms with 100 ml or more of postvoid residual urine. Postoperative QOL was longitudinally assessed in 114 patients by scoring three disease-specific items (sensation of vaginal bulging, obstructive symptoms, urinary incontinence), and one overall health-related QOL (HR-QOL), and compared with corresponding baseline scores. RESULTS A longitudinal study demonstrated that a significant improvement in these symptoms was sustained at a median follow-up of 62.2 months. HR-QOL was significantly associated with vitality assessed by SF 36 (p = 0.036). Multivariate analysis revealed that update urinary incontinence, pre-operative HR-QOL was independent prognostic factors for predicting postoperative patient's satisfaction. CONCLUSIONS Although surgical repair of pelvic floor prolapse can achieve acceptable results with intermediate-term durability as well as improving the QOL, preoperative patients' HR-QOL may be considered in the decision making process for treatment.
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Kawai Y, Sakano S, Suehiro Y, Okada T, Korenaga Y, Hara T, Naito K, Matsuyama H, Hinoda Y. Methylation level of the RASSF1A promoter is an independent prognostic factor for clear-cell renal cell carcinoma. Ann Oncol 2009; 21:1612-1617. [PMID: 20038516 DOI: 10.1093/annonc/mdp577] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Ras association domain family 1A (RASSF1A) is a tumor suppressor that regulates the cell cycle, apoptosis, and microtubule stability. The association between the methylation levels of RASSF1A and the prognosis of clear-cell renal cell carcinoma (CCRCC) remains unclear. Therefore, we investigated this relationship to determine the prognostic value of RASSF1A methylation levels for CCRCC. PATIENTS AND METHODS The study comprised 179 Japanese patients who underwent radical or partial nephrectomy for CCRCC. The methylation level of 5' CpG islands in the RASSF1A was evaluated using combined bisulfite restriction analysis and bisulfite sequencing. RESULTS High levels of methylation in the RASSF1A promoter were significantly more frequent in grade 3 compared with grade 1 or 2 tumors (P = 0.028) and in patients with stage III or IV compared with patients with stage I or II (P = 0.043). Patients with high methylation levels had a significantly less favorable prognosis compared with those with low methylation levels (P = 0.040). Higher methylation levels were independently associated with a poor prognosis following multivariate analysis (P = 0.0053). CONCLUSION These results indicate that quantitative promoter methylation levels of the RASSF1A gene may be a useful marker to predict the prognosis of CCRCC.
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Affiliation(s)
| | | | - Y Suehiro
- Department of Oncology and Laboratory Medicine, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - T Okada
- Department of Oncology and Laboratory Medicine, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | | | | | | | | | - Y Hinoda
- Department of Oncology and Laboratory Medicine, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
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Unno T, Yamamoto M, Hayashi T, Koide K, Tanahashi Y, Matsuyama H, Yamada M, Wess J, Komori S. P3.14 Functional roles of M2 and M3 muscarinic receptors in cholinergic nerve-induced contractions in mouse bladder studied with receptor knockout mice. Auton Neurosci 2009. [DOI: 10.1016/j.autneu.2009.05.162] [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: 10/20/2022]
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Matsuyama H, Nguyen T, Hunne B, Thacker M, Needham K, McHugh D, Furness J. Evidence that TASK1 channels contribute to the background current in AH/type II neurons of the guinea-pig intestine. Neuroscience 2008; 155:738-50. [DOI: 10.1016/j.neuroscience.2008.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Revised: 05/16/2008] [Accepted: 06/03/2008] [Indexed: 12/27/2022]
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Matsuyama H, Katoh H, Ohkushi T, Satoh A, Kawahara K, Yumoto I. Sphingobacterium kitahiroshimense sp. nov., isolated from soil. Int J Syst Evol Microbiol 2008; 58:1576-9. [DOI: 10.1099/ijs.0.65791-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Naito K, Tei Y, Kurisu H, Yamamoto M, Shimabukuro T, Matsuyama H. Cytotoxic Effect of BCG on Tumor Cells Viewed in Cytokine Activities Induced in Vitro. Aktuelle Urol 2008. [DOI: 10.1055/s-2008-1055650] [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: 10/21/2022]
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38
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Nagao K, Misumi T, Sasaki M, Kawai Y, Eguchi S, Hara T, Ohmi C, Sakano S, Matsuyama H, Naito K. MP-08.09: Docetaxel, etoposide, and estramustine phosphate in the treatment of hormone-refractory prostate cancer. Urology 2007. [DOI: 10.1016/j.urology.2007.06.313] [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: 11/29/2022]
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Eguchi S, Yamamoto Y, Chochi Y, Furuya T, Oga A, Kawauchi S, Sakano S, Matsuyama H, Sasaki K, Naito N. POS-02.12: Analysis of genome-wide copy number changes in bladder cancers using array-based comparative genomic hybridization. Urology 2007. [DOI: 10.1016/j.urology.2007.06.752] [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: 11/24/2022]
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Yegani R, Hirozawa H, Teramoto M, Himei H, Okada O, Takigawa T, Ohmura N, Matsumiya N, Matsuyama H. Selective separation of CO2 by using novel facilitated transport membrane at elevated temperatures and pressures. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.01.011] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Unno T, Matsuyama H, Izumi Y, Yamada M, Wess J, Komori S. Roles of M2 and M3 muscarinic receptors in cholinergic nerve-induced contractions in mouse ileum studied with receptor knockout mice. Br J Pharmacol 2006; 149:1022-30. [PMID: 17099717 PMCID: PMC2014632 DOI: 10.1038/sj.bjp.0706955] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND AND PURPOSE The functional roles of M(2) and M(3) muscarinic receptors in neurogenic cholinergic contractions in gastrointestinal tracts remain to be elucidated. To address this issue, we studied cholinergic nerve-induced contractions in the ileum using mutant mice lacking M(2) or M(3) receptor subtypes. EXPERIMENTAL APPROACH Contractile responses to transmural electrical (TE) stimulation were isometrically recorded in ileal segments from M(2)-knockout (KO), M(3)-KO, M(2)/M(3)-double KO, and wild-type mice. KEY RESULTS TE stimulation at 2-50 Hz frequency-dependently evoked a fast, brief contraction followed by a slower, longer one in wild-type, M(2)-KO or M(3)-KO mouse preparations. Tetrodotoxin blocked both the initial and later contractions, while atropine only inhibited the initial contractions. The initial cholinergic contractions were significantly greater in wild-type than M(2)-KO or M(3)-KO mice; the respective mean amplitudes at 50 Hz were 91, 74 and 68 % of 70mM K(+)-induced contraction. Pretreatment with pertussis toxin blocked the cholinergic contractions in M(3)-KO but not in M(2)-KO mice. Cholinergic contractions also remained in wild-type preparations, but their sizes were reduced by 20-30 % at 10-50 Hz. In M(2)/M(3)-double KO mice, TE stimulation evoked only slow, noncholinergic contractions, which were significantly greater in sizes than in any of the other three mouse strains. CONCLUSION AND IMPLICATIONS These results demonstrate that M(2) and M(3) receptors participate in mediating cholinergic contractions in mouse ileum with the latter receptors assuming a greater role. Our data also suggest that the lack of both M(2) and M(3) receptors causes upregulation of noncholinergic excitatory innervation of the gut smooth muscle.
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MESH Headings
- Anesthetics, Local/pharmacology
- Animals
- Atropine/pharmacology
- Capsaicin/pharmacology
- Electric Stimulation
- Female
- Ileum/drug effects
- Isometric Contraction/drug effects
- Male
- Mice
- Mice, Knockout
- Muscarinic Antagonists/pharmacology
- Muscle Contraction/drug effects
- Muscle Contraction/physiology
- Muscle, Smooth/drug effects
- Muscle, Smooth/physiology
- Parasympathetic Nervous System/drug effects
- Parasympathetic Nervous System/physiology
- Pertussis Toxin/pharmacology
- Receptor, Muscarinic M2/drug effects
- Receptor, Muscarinic M2/genetics
- Receptor, Muscarinic M2/physiology
- Receptor, Muscarinic M3/drug effects
- Receptor, Muscarinic M3/genetics
- Receptor, Muscarinic M3/physiology
- Tetrodotoxin/pharmacology
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Affiliation(s)
- T Unno
- Laboratory of Pharmacology, Department of Veterinary Medicine, Faculty of Applied Biological Science, Gifu University Gifu, Japan
| | - H Matsuyama
- Laboratory of Pharmacology, Department of Veterinary Medicine, Faculty of Applied Biological Science, Gifu University Gifu, Japan
| | - Y Izumi
- Laboratory of Pharmacology, Department of Veterinary Medicine, Faculty of Applied Biological Science, Gifu University Gifu, Japan
| | - M Yamada
- Laboratory for Neurogenetics, Brain Science Institute RIKEN, Saitama, Japan
| | - J Wess
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases Bethesda, MD, USA
| | - S Komori
- Laboratory of Pharmacology, Department of Veterinary Medicine, Faculty of Applied Biological Science, Gifu University Gifu, Japan
- Author for correspondence:
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Eguchi S, Kawai Y, Akao J, Hara T, Nagao K, Ohmi C, Sakano S, Matsuyama H, Naito K. MP-13.14. Urology 2006. [DOI: 10.1016/j.urology.2006.08.440] [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: 11/28/2022]
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Nagao K, Baba Y, Yamamoto Y, Matsuda K, Fujikawa K, Hiragino T, Matsuyama H, Naito K. MP-10.09. Urology 2006. [DOI: 10.1016/j.urology.2006.08.367] [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: 10/24/2022]
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44
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Nishida T, Eruden B, Hosoda K, Matsuyama H, Nakagawa K, Miyazawa T, Shioya S. Effects of Green Tea (Camellia sinensis) Waste Silage and Polyethylene Glycol on Ruminal Fermentation and Blood Components in Cattle. Asian Australas J Anim Sci 2006. [DOI: 10.5713/ajas.2006.1728] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Sakano S, Wada T, Matsumoto H, Sugiyama S, Inoue R, Eguchi S, Ito H, Ohmi C, Matsuyama H, Naito K. Single nucleotide polymorphisms in DNA repair genes might be prognostic factors in muscle-invasive bladder cancer patients treated with chemoradiotherapy. Br J Cancer 2006; 95:561-70. [PMID: 16880786 PMCID: PMC2360681 DOI: 10.1038/sj.bjc.6603290] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
DNA repair enzymes repair DNA damaged by platinum agents and ionising radiation. Single nucleotide polymorphisms (SNPs) in DNA repair genes modulate the repair capacity and might affect response and prognosis following platinum-based chemoradiotherapy (CRT). We investigated associations between the functional SNPs in DNA repair genes and response and survival in muscle-invasive bladder cancer patients treated with CRT to determine the predictive value of the SNPs in patient selection for bladder conservation therapy. The study group comprised 78 patients who underwent CRT for transitional cell carcinoma of the bladder. Single nucleotide polymorphisms in xeroderma pigmentosum complementation groups C (Lys939Gln, A/C), D (XPD; Lys751Gln, A/C), and G (Asp1104His, G/C), and X-ray repair cross-complementing groups 1 (XRCC1; Arg399Gln, G/A) and 3 (Thr241Met, T/C) genes were genotyped. Combined genotypes with at least one variant allele in XPD or XRCC1 were significantly associated with improved cancer-specific survival compared with remaining groups (P=0.009). In multivariate analysis, only the combined XPD and XRCC1 genotypes were independently associated with cancer-specific survival (P=0.04). The association was stronger in stage T3/T4 patients (P=0.0008). These results suggest that combined XPD and XRCC1 genotypes might be prognostic factors in muscle-invasive bladder cancer patients treated with CRT.
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Affiliation(s)
- S Sakano
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - T Wada
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - H Matsumoto
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - S Sugiyama
- Department of Public Health, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - R Inoue
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - S Eguchi
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - H Ito
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - C Ohmi
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - H Matsuyama
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - K Naito
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
- E-mail:
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Unno T, Matsuyama H, Okamoto H, Sakamoto T, Yamamoto M, Tanahashi Y, Yan HD, Komori S. Muscarinic cationic current in gastrointestinal smooth muscles: signal transduction and role in contraction. ACTA ACUST UNITED AC 2006; 26:203-17. [PMID: 16879487 DOI: 10.1111/j.1474-8673.2006.00366.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
1 The muscarinic receptor plays a key role in the parasympathetic nervous control of various peripheral tissues including gastrointestinal tract. The neurotransmitter acetylcholine, via activating muscarinic receptors that exist in smooth muscle, produces its contraction. 2 There is the opening of cationic channels as an underlying mechanism. The opening of cationic channels results in influxes of Ca2+ via the channels into the cell and also via voltage-dependent Ca2+ channels which secondarily opened in response to the depolarization, providing an amount of Ca2+ for activation of the contractile proteins. 3 Electrophysiological and pharmacological studies have shown that the cationic channels as well as muscarinic receptors exist in many visceral smooth muscle cells. However, the activation mechanisms of the cationic channels are still unclear. 4 In this article, we summarize the current knowledge of the muscarinic receptor-operated cationic channels, focusing on the receptor subtype, G protein and other signalling molecules that are involved in activation of these channels and on the molecular characteristics of the channel. This will improve strategies aimed at developing new selective pharmacological agents and understanding the activation mechanism and functions of these channels in physiological systems.
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Affiliation(s)
- T Unno
- Laboratory of Pharmacology, Department of Veterinary Medicine, Faculty of Applied Biological Science, Gifu University, Gifu 501-1193, Japan
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Shinohara N, Harabayashi T, Suzuki S, Nagao K, Nagamori S, Matsuyama H, Naito K, Nonomura K. Salvage chemotherapy with paclitaxel, ifosfamide, and nedaplatin in patients with urothelial cancer who had received prior cisplatin-based therapy. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.4579] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4579 Background: The combination chemotherapy of paclitaxel, ifosfamide, and nedaplatin (PIN regimen) has been shown to be effective in patients with advanced urothelial cancer. The aim of this presentation is to evaluate long-term followup outcomes in patients who had treated with standard cisplatin-based chemotherapy. Methods: The PIN regimen consisted of paclitaxel 175 mg/m2 on day 1, ifosfamide 4.5 g/m2 divided over days 1, 2 and 3, and nedaplatin 70 mg/m2 on day 1; PIN was given every 28 days. The doses of nedaplatin and ifosfamide were reduced according to the impairment of renal function (24h CCr) just before starting each cycle of PIN therapy Results: Thirty two patients who had previously undergone cisplatin-based chemotherapy were entered onto the study (median age, 66 years; median performance status, 1, median 24h CCr, 62ml/min [29–119ml/min] ). Metastatic sites at study entry included the lymph nodes (24), lung (6), bone (5), primary (5), soft tissue (3), and liver (2). Among the 32 assessable patients, there were 5 CRs (16%) and 19 PRs (59%) for an overall RR of 75 % (95% confidence interval [CI], 59–91 %). The median time to progression was 8 months (range, 0–50+ months) and the median survival was 22 months (range, 4–52+ months). Twelve patients received the full dose of PIN combination (median 5 cycles) and 20 patients required dose reduction (median 3 cycles). Nine of 12 (75%) patients who were treated with the full-dose PIN combination obtained a CR or PR, as did 15 of 20 (75%) patients who required dose reduction. Grades 3 and 4 neutropenia occurred in all patients. Febrile neutropenia occurred in 8 (25%) patients. Grades 3 and 4 thrombocytopenia occurred in 8 (25%) patients. Grades 3 and 4 anemia was observed in 6 (19%) patients. Grade 3 neuropathy occurred in 1 (3%) patient, who could not continue to receive additional cycles of PIN combination after 3 cycles. No patient experienced renal failure. There were no treatment-related deaths. Conclusions: The PIN combination was highly active and tolerable in patients who had previously treated with cisplatin-based chemotherapy, and might be suitable for those with mild to moderate renal insufficiency. No significant financial relationships to disclose.
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Affiliation(s)
- N. Shinohara
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
| | - T. Harabayashi
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
| | - S. Suzuki
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
| | - K. Nagao
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
| | - S. Nagamori
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
| | - H. Matsuyama
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
| | - K. Naito
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
| | - K. Nonomura
- Hokkaido University Graduate School of Medicine, Sapporo, Japan; Yamaguchi University School of Medicine, Ube, Japan; Sapporo Cancer Center Hospital, Sapporo, Japan
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El-Mahmoudy A, Shimizu Y, Shiina T, Matsuyama H, Nikami H, Takewaki T. Macrophage-derived cytokine and nitric oxide profiles in type I and type II diabetes mellitus: effect of thymoquinone. Acta Diabetol 2005; 42:23-30. [PMID: 15868110 DOI: 10.1007/s00592-005-0170-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2003] [Accepted: 05/19/2004] [Indexed: 11/26/2022]
Abstract
Comparing macrophage-derived cytokine and nitric oxide (NO) profiles in type I and type II diabetes mellitus (DM); and determining whether thymoquinone (TQ) has any modulatory effect were the main objectives of the present study. Peritoneal macrophages have been collected from Otsuka Long-Evans Tokushima Fatty (OLETF) as a model for type II DM and its control Long-Evans Tokushima Otsuka (LETO) rats, as well as from streptozotocin (STZ)-injected LETO ones as a model for type I DM. The cells were cultured and incubated with or without TQ (10 microM) in the absence or presence of lipopolysaccharide (LPS; 1 microg/ml). The same parameters have been also assessed in sera of the used animals with or without TQ treatment (3 mg/kg) under both LPS-stimulated (10 mg/kg) and unstimulated conditions. Nitrite, IL-1beta and TNF-alpha were significantly higher in macrophage supernatants and sera of the acutely affected STZ-LETO rats either with or without LPS stimulation compared to corresponding controls. On the other hand, chronically diabetic OLETF rats' macrophage supernatants showed significant decreases of IL-1beta and TNF-alpha levels upon LPS stimulation or even without stimulation (IL-1beta); and insignificant increase in nitrite concentration, which turned significant upon LPS stimulation. Sera of these animals, however, showed significant increase in TNF-alpha level. TQ normalised the elevated nitrite and cytokine profiles both in vitro and in vivo, yet had no significant effect on the already decreased parameters in chronically affected OLETF rats. These data suggest that there is a tendency for macrophage inflammatory products to increase in acute type I and to decrease in chronic type II DM; and that TQ has the potential to normalise the elevated levels of these macrophage-derived inflammatory mediators.
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MESH Headings
- Animals
- Benzoquinones/pharmacology
- Blood Glucose/metabolism
- Cytokines/metabolism
- Diabetes Mellitus, Type 1/drug therapy
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/immunology
- Diabetes Mellitus, Type 2/metabolism
- Immunologic Factors/pharmacology
- Interleukin-1/blood
- Interleukin-1/metabolism
- Macrophages, Peritoneal/drug effects
- Macrophages, Peritoneal/immunology
- Macrophages, Peritoneal/metabolism
- Male
- Nitric Oxide/metabolism
- Nitrites/blood
- Rats
- Rats, Inbred OLETF
- Tumor Necrosis Factor-alpha/metabolism
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Affiliation(s)
- A El-Mahmoudy
- Department of Basic Veterinary Science, United Graduate School, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
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Matsumoto H, Matsuyama H, Fukunaga K, Yoshihiro S, Wada T, Naito K. Allelic imbalance at 1p36 may predict prognosis of chemoradiation therapy for bladder preservation in patients with invasive bladder cancer. Br J Cancer 2004; 91:1025-31. [PMID: 15292937 PMCID: PMC2747707 DOI: 10.1038/sj.bjc.6602073] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Invasive bladder cancers have been treated by irradiation combined with cis- platinum (CDDP) as a bladder preservative option. The aim of this study was to find a marker for predicting patient outcome as well as clinical response after chemoradiation therapy (CRT) by investigating allelic loss of apoptosis-related genes. A total of 67 transitional cell carcinomas of the bladder treated by CRT (median dose: 32.4 Gy of radiation and 232 mg of CDDP) were studied. We investigated allelic imbalances at 14 loci on chromosomes 17p13 and 1p36 including the p53 and p73 gene regions by fluorescent multiplex PCR based on DNA from paraffin-embedded tumour specimens and peripheral blood. The response to CRT was clinical response (CR) in 21 patients (31%), partial response (PR) in 31 (46%), and no change(NC) in 15 (22%). There was no statistical correlation between treatment response and clinical parameters, such as tumour grade, stage, radiation dose, or CDDP dose. The frequencies of allelic imbalance for TP53 and TP73 were 21 and 56%, respectively; neither was correlated with clinical treatment response and tumour stage or grade. There was no statistical correlation between treatment response and allelic imbalance at the other 12 loci. We found a significant correlation between cancer-specific survival and an imbalance of D1S243 (P=0.0482) or TP73 (P=0.0013) using a Log-rank test, although other loci including TP53 did not correlate with survival (P=0.4529 Multivariate analysis showed performance status (P=0.0047), recurrence (P=0.0017), and radiation doses (P=0.0468) were independent predictive factors for cancer-specific survival. However, an allelic imbalance of TP73 was the most remarkable independent predictive factor of poor patient survival (P=0.0002, risk ratio: 3382). Our results suggest that the allelic loss of the p73 gene predicts a clinical outcome of locally advanced bladder cancer when treated by CRT.
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Affiliation(s)
- H Matsumoto
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1, Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - H Matsuyama
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1, Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - K Fukunaga
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1, Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - S Yoshihiro
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1, Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - T Wada
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1, Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
| | - K Naito
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1, Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
- Department of Urology, Yamaguchi University School of Medicine, 1-1-1, Minamikogushi, Ube, Yamaguchi, 755-8505, Japan. E-mail:
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50
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Abstract
Seven Holstein cows (BW = 639.4 +/- 28.8 kg, age = 62.6 +/- 6.9 mo, parity = 3.1 +/- 0.4 yr) (mean +/- SE) were used to measure uterine blood flow using a transit time ultrasonic flow meter. Ultrasonic flow probes were implanted (d 218 +/- 4 of gestation) around both uterine arteries (n = 3) or the gravid uterine artery (n = 4) to measure variations in uterine blood flow through this vessel in response to postural change (standing and lying). Implantation of the ultrasonic blood flow probe was successful in all 7 cows. Uterine blood flow was measured for 22.9, 23.1, and 21.4 h/d on d 226, 248, and 269 of gestation, respectively. Cows exhibited normal durations of gestation (272.8 +/- 1.6 d), gave birth to normal healthy calves (birth weight = 41.5 +/- 3.0 kg), and did not retain their placenta. Uterine blood flow to the gravid horn during lying was greater than during standing on d 226 (standing vs. lying, 8.04 vs. 8.79 L/min, respectively), d 248 (9.87 vs. 11.06 L/min), and d 269 (8.15 vs. 9.74 L/min) of gestation. Cows spent nearly 50% of their time lying during our observations at all gestational ages. Greater blood supply to the gravid uterus was observed during lying than during standing in this study.
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Affiliation(s)
- T Nishida
- Department of Animal Feeding and Management, National Institute of Livestock and Grassland Science, Nishinasuno, Tochigi 329-2793 Japan.
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