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Kawamoto T, Saito T, Kosugi T, Nakamura N, Wada H, Tonari A, Ogawa H, Mitsuhashi N, Yamada K, Takahashi T, Ito K, Sekii S, Araki N, Nozaki M, Heianna J, Murotani K, Hirano Y, Satoh A, Onoe T, Shikama N. Temporal Profiles of Symptom Scores After Palliative Radiotherapy for Bleeding Gastric Cancer With Adjustment for the Palliative Prognostic Index: An Exploratory Analysis of a Multicentre Prospective Observational Study (JROSG 17-3). Clin Oncol (R Coll Radiol) 2022; 34:e505-e514. [PMID: 35654667 DOI: 10.1016/j.clon.2022.05.009] [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: 01/24/2022] [Revised: 04/12/2022] [Accepted: 05/12/2022] [Indexed: 01/31/2023]
Abstract
AIMS Although palliative radiotherapy for gastric cancer may improve some symptoms, it may also have a negative impact due to its toxicity. We investigated whether symptoms improved after radiotherapy with adjustment for the Palliative Prognostic Index (PPI) considering that patients with limited survival tend to experience deterioration of symptoms. MATERIALS AND METHODS This study was an exploratory analysis of the Japanese Radiation Oncology Study Group study (JROSG 17-3). We assessed six symptom scores (nausea, anorexia, fatigue, shortness of breath, pain at the irradiated area and distress) at registration and 2, 4 and 8 weeks thereafter. We tested whether symptoms linearly improved after adjusting for the baseline PPI. Shared parameter models were used to adjust for potential bias in missing data. RESULTS The present study analysed all 55 patients enrolled in JROSG 17-3. With time from registration as the only explanatory variable in the model, a significant linear decrease was observed in shortness of breath, pain and distress (slopes, -0.26, -0.22 and -0.19, respectively). Given that the interaction terms (i.e. PPI × time) were not significantly associated with symptom scores in any of the six symptoms, only PPI was included as the main effect in the final multivariable models. After adjusting for the PPI, shortness of breath, pain and distress significantly improved (slope, -0.25, -0.19 and -0.17; P < 0.001, 0.002 and 0.047, respectively). An improvement in fatigue and distress was observed only in patients treated with a biologically effective dose ≤14.4 Gy. CONCLUSION Shortness of breath, pain and distress improved after radiotherapy. Moreover, a higher PPI was significantly associated with higher symptom scores at all time points, including baseline. In contrast, PPI did not seem to influence the improvement of these symptoms. Regardless of the expected survival, patients receiving radiotherapy for gastric cancer can expect an improvement in shortness of breath, pain and distress over 8 weeks. Multiple-fraction radiotherapy might hamper the improvement in fatigue and distress by its toxicity or treatment burden.
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Affiliation(s)
- T Kawamoto
- Division of Radiation Oncology, Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan.
| | - T Saito
- Department of Radiation Oncology, Arao Municipal Hospital, Kumamoto, Japan
| | - T Kosugi
- Department of Radiation Oncology, Fujieda Municipal General Hospital, Shizuoka, Japan
| | - N Nakamura
- Department of Radiology, St. Marianna University School of Medicine, Kanagawa, Japan
| | - H Wada
- Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Fukushima, Japan
| | - A Tonari
- Department of Radiation Oncology, Kyorin University Hospital, Tokyo, Japan
| | - H Ogawa
- Division of Radiation Therapy, Shizuoka Cancer Center, Shizuoka, Japan
| | - N Mitsuhashi
- Radiation Therapy Center, Hitachi Ltd, Hitachinaka General Hospital, Ibaraki, Japan
| | - K Yamada
- Department of Radiation Oncology, Seirei Mikatahara General Hospital, Shizuoka, Japan
| | - T Takahashi
- Department of Radiation Oncology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - K Ito
- Division of Radiation Oncology, Department of Radiology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - S Sekii
- Department of Radiation Oncology, Kita-Harima Medical Center, Hyogo, Japan
| | - N Araki
- Department of Radiation Oncology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Nozaki
- Department of Radiology, Saitama Medical Center, Dokkyo Medical University, Saitama, Japan
| | - J Heianna
- Department of Radiology, Nanbu Tokushukai Hospital, Okinawa, Japan
| | - K Murotani
- Biostatistics Center, Kurume University, Fukuoka, Japan
| | - Y Hirano
- Department of Radiology, Saitama Medical Center, Dokkyo Medical University, Saitama, Japan
| | - A Satoh
- Department of Surgery, Southern Tohoku General Hospital, Fukushima, Japan
| | - T Onoe
- Division of Radiation Therapy, Shizuoka Cancer Center, Shizuoka, Japan
| | - N Shikama
- Division of Radiation Oncology, Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan
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Kawamoto T, Saito T, Kosugi T, Nakamura N, Wada H, Tonari A, Ogawa H, Mitsuhashi N, Yamada K, Takahashi T, Ito K, Sekii S, Araki N, Nozaki M, Heianna J, Murotani K, Hirano Y, Satoh A, Onoe T, Shikama N. Temporal Profiles of Symptom Scores after Palliative Radiotherapy for Bleeding Gastric Cancer with the Adjustment for the Palliative Prognostic Index: An Exploratory Analysis of a Multicenter Prospective Observational Study (JROSG 17-3). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1672] [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: 10/31/2022]
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3
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Li J, Inoue R, Togashi Y, Okuyama T, Satoh A, Kyohara M, Nishiyama K, Tsuno T, Miyashita D, Kin T, Shapiro AMJ, Chew RSE, Teo AKK, Oyadomari S, Terauchi Y, Shirakawa J. Imeglimin Ameliorates β-Cell Apoptosis by Modulating the Endoplasmic Reticulum Homeostasis Pathway. Diabetes 2022; 71:424-439. [PMID: 34588186 DOI: 10.2337/db21-0123] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [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: 02/10/2021] [Accepted: 09/20/2021] [Indexed: 02/05/2023]
Abstract
The effects of imeglimin, a novel antidiabetes agent, on β-cell function remain unclear. Here, we unveiled the impact of imeglimin on β-cell survival. Treatment with imeglimin augmented mitochondrial function, enhanced insulin secretion, promoted β-cell proliferation, and improved β-cell survival in mouse islets. Imeglimin upregulated the expression of endoplasmic reticulum (ER)-related molecules, including Chop (Ddit3), Gadd34 (Ppp1r15a), Atf3, and Sdf2l1, and decreased eIF2α phosphorylation after treatment with thapsigargin and restored global protein synthesis in β-cells under ER stress. Imeglimin failed to protect against ER stress-induced β-cell apoptosis in CHOP-deficient islets or in the presence of GADD34 inhibitor. Treatment with imeglimin showed a significant decrease in the number of apoptotic β-cells and increased β-cell mass in Akita mice. Imeglimin also protected against β-cell apoptosis in both human islets and human pluripotent stem cell-derived β-like cells. Taken together, imeglimin modulates the ER homeostasis pathway, which results in the prevention of β-cell apoptosis both in vitro and in vivo.
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Affiliation(s)
- Jinghe Li
- Laboratory of Diabetes and Metabolic Disorders, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Ryota Inoue
- Laboratory of Diabetes and Metabolic Disorders, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Yu Togashi
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Tomoko Okuyama
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Aoi Satoh
- Laboratory of Diabetes and Metabolic Disorders, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Mayu Kyohara
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Kuniyuki Nishiyama
- Laboratory of Diabetes and Metabolic Disorders, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Takahiro Tsuno
- Laboratory of Diabetes and Metabolic Disorders, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Daisuke Miyashita
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Tatsuya Kin
- Clinical Islet Laboratory and Clinical Islet Transplant Program, University of Alberta, Edmonton, Alberta, Canada
| | - A M James Shapiro
- Clinical Islet Laboratory and Clinical Islet Transplant Program, University of Alberta, Edmonton, Alberta, Canada
| | - Resilind Su Ern Chew
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology, A*STAR, Proteos, Singapore
| | - Adrian Kee Keong Teo
- Stem Cells and Diabetes Laboratory, Institute of Molecular and Cell Biology, A*STAR, Proteos, Singapore
- Departments of Biochemistry and Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Seiichi Oyadomari
- Division of Molecular Biology, Institute of Advanced Medical Sciences, Tokushima University, Kuramoto, Tokushima, Japan
| | - Yasuo Terauchi
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Jun Shirakawa
- Laboratory of Diabetes and Metabolic Disorders, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
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Saito T, Kosugi T, Nakamura N, Wada H, Tonari A, Ogawa H, Mitsuhashi N, Yamada K, Takahashi T, Sekii S, Karasawa K, Araki N, Nozaki M, Heianna J, Murotani K, Hirano Y, Satoh A, Onoe T, Watakabe T, Shikama N. Assessment of Treatment Response and Re-Bleeding After Palliative Radiation Therapy for Bleeding Gastric Cancer: A Longitudinal Multicenter Prospective Observational Study. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.267] [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: 11/15/2022]
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5
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Yamada T, Yoshida Y, Satoh A, Aisu N, Matsuoka T, Koganemaru T, Kajitani R, Munechika T, Matsumoto Y, Nagano H, Komono A, Sakamoto R, Morimoto M, Arima H, Hasegawa S. The validity of evaluations for chemotherapy-induced peripheral neuropathy (CIPN). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz265.049] [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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6
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Nakamura M, Yagisawa M, Saiki T, Ishiguro A, Sawada K, Yuki S, Sasaki T, Ando T, Ohori H, Kotaka M, Muto O, Shindo Y, Nakashima K, Hosokawa A, Doi A, Izawa N, Sunakawa Y, Satoh A, Ono K, Komatsu Y. A feasibility study of edoxaban for the cancer-associated asymptomatic venous thromboembolism in Japanese gastrointestinal cancer patients receiving chemotherapy (ExCAVE study). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.032] [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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7
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Oikawa J, Fukaya H, Nabeta T, Arakawa Y, Horiguchi A, Nishinarita R, Nakamura H, Satoh A, Kishihara J, Ishii S, Noda C, Yamaoka-Tojo M, Niwano S, Ako J. P966Daily heart rate variability predicts heart failure events in patients with permanent atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J Oikawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - H Fukaya
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - T Nabeta
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - Y Arakawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - A Horiguchi
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - R Nishinarita
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - H Nakamura
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - A Satoh
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Kishihara
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - S Ishii
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - C Noda
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - S Niwano
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
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Fukaya H, Kishihara J, Oikawa J, Arakawa Y, Nishinarita R, Horiguchi A, Nakamura H, Satoh A, Niwano S, Ako J. P1934Fibrillation cycle length predicts recurrence after catheter ablation in patients with persistent atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H Fukaya
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Kishihara
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Oikawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - Y Arakawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - R Nishinarita
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - A Horiguchi
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - H Nakamura
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - A Satoh
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - S Niwano
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
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Ohno H, Matsuzaka T, Tang N, Sharma R, Motomura K, Shimura T, Satoh A, Han SI, Takeuchi Y, Aita Y, Iwasaki H, Yatoh S, Suzuki H, Sekiya M, Nakagawa Y, Sone H, Yahagi N, Yamada N, Higami Y, Shimano H. Transgenic Mice Overexpressing SREBP-1a in Male ob/ob Mice Exhibit Lipodystrophy and Exacerbate Insulin Resistance. Endocrinology 2018; 159:2308-2323. [PMID: 29668871 DOI: 10.1210/en.2017-03179] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 11/27/2017] [Accepted: 03/13/2018] [Indexed: 12/14/2022]
Abstract
Sterol regulatory element-binding protein (SREBP)-1a is a key transcription factor that activates the expression of genes involved in the synthesis of fatty acids, triglycerides (TGs), and cholesterol. Transgenic mice that overexpress the nuclear form of SREBP-1a under the control of the phosphoenolpyruvate carboxykinase promoter (Tg-1a) were previously shown to display a lipodystrophic phenotype characterized by enlarged and fatty livers, diminished peripheral white adipose tissue (WAT), and insulin resistance. In the current study, we crossed these Tg-1a mice with genetically obese (ob/ob) mice (Tg-1a;ob/ob) and examined change in fat distribution between liver and adipose tissues in severe obesity and mechanism underlying the lipodystrophic phenotype in mice with Tg-1a. Tg-1a;ob/ob mice developed more severe steatohepatitis but had reduced WAT mass and body weight compared with ob/ob mice. The reduction of WAT mass in Tg-1a and Tg-1a;ob/ob mice was accompanied by enhanced lipogenesis and lipid uptake in the liver, reduced plasma lipid levels, impaired adipocyte differentiation, reduced food intake, enhanced energy expenditure, and extended macrophage infiltration and fibrosis in WAT. Despite the improved glucose tolerance, Tg-1a;ob/ob mice showed severe peripheral insulin resistance. Adenoviral hepatic expression of SREBP-1a mimicked these phenotypes. The "fat steal"-like lipodystrophy phenotype of the Tg-1a;ob/ob model demonstrates that hepatic SREBP-1a activation has a strong impact on the partition of TG accumulation, resulting in adipose-tissue remodeling by inflammation and fibrosis and insulin resistance.
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Affiliation(s)
- Hiroshi Ohno
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takashi Matsuzaka
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Division of Energy Metabolism Research, Transborder Medical Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Nie Tang
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Rahul Sharma
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kaori Motomura
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takuya Shimura
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Aoi Satoh
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Song-Iee Han
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshinori Takeuchi
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuichi Aita
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hitoshi Iwasaki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Shigeru Yatoh
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hiroaki Suzuki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Motohiro Sekiya
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshimi Nakagawa
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hirohito Sone
- Department of Internal Medicine, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Naoya Yahagi
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Nobuhiro Yamada
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshikazu Higami
- Laboratory of Molecular Pathology and Metabolic Disease, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan
| | - Hitoshi Shimano
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki, Japan
- AMED-CREST, Japan Agency for Medical Research and Development, Chiyoda-ku, Tokyo, Japan
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Sato J, Kitagawa Y, Watanabe S, Asaka T, Ohga N, Hirata K, Shiga T, Satoh A, Tamaki N. Hypoxic volume evaluated by 18 F-fluoromisonidazole positron emission tomography (FMISO-PET) may be a prognostic factor in patients with oral squamous cell carcinoma: preliminary analyses. Int J Oral Maxillofac Surg 2018; 47:553-560. [DOI: 10.1016/j.ijom.2017.09.007] [Citation(s) in RCA: 8] [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] [Received: 04/02/2017] [Revised: 08/03/2017] [Accepted: 09/18/2017] [Indexed: 11/25/2022]
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Ishizue N, Niwano S, Fukaya H, Nakamura H, Oikawa J, Kishihara J, Satoh A, Ako J. 224Day-to-day Variation of J-wave Predicts Life-Threatening Arrhythmias in Patients with Brugada syndrome. Europace 2018. [DOI: 10.1093/europace/euy015.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N Ishizue
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - S Niwano
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - H Fukaya
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - H Nakamura
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - J Oikawa
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - J Kishihara
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - A Satoh
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - J Ako
- Kitasato University, Department of Cardiovascular Medicine, Sagamihara, Japan
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12
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Oikawa J, Niwano S, Fukaya H, Horiguchi A, Nishinarita R, Muramatsu Y, Nakamura H, Satoh A, Kishihara J, Mizutani T, Takeuchi I, Asari Y, Ako J. P2759A novel scoring system for neurological outcomes in patients receiving thrapeutic hypothermia cardiopulmonary arrest. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2759] [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: 11/14/2022] Open
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13
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Takei K, Han SI, Murayama Y, Satoh A, Oikawa F, Ohno H, Osaki Y, Matsuzaka T, Sekiya M, Iwasaki H, Yatoh S, Yahagi N, Suzuki H, Yamada N, Nakagawa Y, Shimano H. Selective peroxisome proliferator-activated receptor-α modulator K-877 efficiently activates the peroxisome proliferator-activated receptor-α pathway and improves lipid metabolism in mice. J Diabetes Investig 2017; 8:446-452. [PMID: 28084058 PMCID: PMC5497046 DOI: 10.1111/jdi.12621] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 12/21/2016] [Accepted: 01/10/2017] [Indexed: 12/21/2022] Open
Abstract
Aims/Introduction Peroxisome proliferator‐activated receptor‐α (PPARα) is a therapeutic target for hyperlipidemia. K‐877 is a new selective PPARα modulator (SPPARMα) that activates PPARα transcriptional activity. The aim of the present study was to assess the effects of K‐877 on lipid metabolism in vitro and in vivo compared with those of classical PPARα agonists. Materials and Methods To compare the effects of K‐877 on PPARα transcriptional activity with those of the classical PPARα agonists Wy14643 (Wy) and fenofibrate (Feno), the cell‐based PPARα transactivation luciferase assay was carried out. WT and Ppara−/− mice were fed with a moderate‐fat (MF) diet for 6 days, and methionine–choline‐deficient (MCD) diet for 4 weeks containing Feno or K‐877. Results In luciferase assays, K‐877 activated PPARα transcriptional activity more efficiently than the classical PPARα agonists Feno and Wy. After being fed MF diet containing 0.001% K‐877 or 0.2% Feno for 6 days, mice in the K‐877 group showed significant increases in the expression of Ppara and its target genes, leading to marked reductions in plasma triglyceride levels compared with those observed in Feno‐treated animals. These K‐877 effects were blunted in Ppara−/− mice, confirming that K‐877 activates PPARα. In further experiments, K‐877 (0.00025%) and Feno (0.1%) equally improved the pathology of MCD diet‐induced non‐alcoholic fatty liver disease, with increased expression of hepatic fatty acid oxidation genes. Conclusions The present data show that K‐877 is an attractive PPARα‐modulating drug and can efficiently reduce plasma triglyceride levels, thereby alleviating the dysregulation of lipid metabolism.
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Affiliation(s)
- Kenta Takei
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Song-Iee Han
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuki Murayama
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Aoi Satoh
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Fusaka Oikawa
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hiroshi Ohno
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshinori Osaki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takashi Matsuzaka
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Motohiro Sekiya
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hitoshi Iwasaki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Shigeru Yatoh
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Naoya Yahagi
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hiroaki Suzuki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Nobuhiro Yamada
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshimi Nakagawa
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.,International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hitoshi Shimano
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.,International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan.,Life Science Center, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki, Japan
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Lee S, Hashimoto J, Suzuki T, Satoh A. The effects of exercise load during development on oxidative stress levels and antioxidant potential in adulthood. Free Radic Res 2017; 51:179-186. [PMID: 28166650 DOI: 10.1080/10715762.2017.1291939] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The objective of this study was to elucidate the impact of physical activity during the growth period as well as on oxidative stress and antioxidative potential in adulthood. The experimental animals used were four-week old male Wistar rats, which were randomly divided into three groups. The exercise loads were as follows: control (CON), treadmill exercise (TE), and jumping exercise (JE). The exercise was performed at the same time of day, at a frequency of five days per week, for eight weeks. Derivatives of reactive oxygen metabolites (d-ROSs) and biological antioxidant potential (BAP) were measured during periods of rest prior to commencement of the experiment and after the experiment. Analysis was conducted using a Wilcoxon signed-rank test and Schaffer's multiple comparison procedure and the significance level was set at p < 0.05. The percent increase in d-ROM levels in the JE group, which experienced short-duration intense exercise loads, was higher than that in the TE group, which experienced moderately intense exercise loads. However, BAP, which is an index of antioxidant potential, markedly decreased in adulthood in the CON group, as compared to that in the developmental period, whereas the exercise groups showed no notable changes in BAP levels. Oxidative stress levels and antioxidant potential are affected differently in adulthood, depending on the intensity of sustained exercise loads experienced during development. Results suggested that in order to increase antioxidant potential, while taking oxidative stress production into account, moderately intense exercise loads are more desirable than highly intense exercise loads.
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Affiliation(s)
- S Lee
- a Department of Physical Therapy , Aomori University of Health and Welfare , Aomori-shi , Japan
| | - J Hashimoto
- a Department of Physical Therapy , Aomori University of Health and Welfare , Aomori-shi , Japan
| | - T Suzuki
- a Department of Physical Therapy , Aomori University of Health and Welfare , Aomori-shi , Japan
| | - A Satoh
- b Department of Nursing , Hirosaki University of Health and Welfare , Hirosaki-shi , Japan
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Takei K, Nakagawa Y, Wang Y, Han SI, Satoh A, Sekiya M, Matsuzaka T, Shimano H. Effects of K-877, a novel selective PPARα modulator, on small intestine contribute to the amelioration of hyperlipidemia in low-density lipoprotein receptor knockout mice. J Pharmacol Sci 2017; 133:214-222. [PMID: 28366492 DOI: 10.1016/j.jphs.2017.02.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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: 11/29/2016] [Revised: 01/26/2017] [Accepted: 02/06/2017] [Indexed: 11/18/2022] Open
Abstract
Peroxisome proliferator-activated receptor α (PPARα) is a well-known therapeutic target for treating hyperlipidemia. K-877 is a novel selective PPARα modulator (SPPARMα) that enhances PPARα transcriptional activity with high selectivity and potency, resulting in reduced plasma lipid levels. This study aimed to evaluate the effects of K-877 on hyperlipidemia in low-density lipoprotein receptor knockout (Ldlr-/-) mice, a mouse model of atherosclerosis. We revealed that K-877 administration significantly decreased plasma triglyceride (TG) and total cholesterol (TC) levels and increased plasma high-density lipoprotein cholesterol (HDL-C) levels in Ldlr-/- mice. K-877 administration to Ldlr-/- mice efficiently increased the gene expression of PPARα and its target genes related to fatty acid oxidation in the liver and small intestine. The same treatment significantly increased ATP-binding cassette a1 gene expression in the liver and small intestine and reduced Niemann Pick C1-like 1 gene expression in the small intestine, suggesting that K-877 administration induced HDL-C production in the liver and small intestine and reduced cholesterol absorption in the small intestine. In conclusion, K-877 administration had pronounced effects on the liver and small intestine in Ldlr-/- mice. K-877 is an attractive PPARα-modulating drug for treating hyperlipidemia that works equally well in both the liver and small intestine.
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Affiliation(s)
- Kenta Takei
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yoshimi Nakagawa
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Yunong Wang
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Song-Iee Han
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Aoi Satoh
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Motohiro Sekiya
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Takashi Matsuzaka
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Hitoshi Shimano
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; Life Science Center, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.
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Mori T, Masukawa S, Kikkawa T, Fujimori A, Satoh A, Matsumoto K, Jikei M, Oishi Y, Shibasaki Y. Rapid synthesis and properties of segmented block copolymers based on monodisperse aromatic poly(N-methyl benzamide) and poly(propylene oxide). RSC Adv 2017. [DOI: 10.1039/c7ra05161a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monodisperse aromatic N-methyl benzamide-based molecules (Mw/Mn = 1.02–1.04) with terephthalic acid at both sides (MABx–x) were rapidly prepared by a step-wise reaction using the reported one-pot dendrimer synthetic method.
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Affiliation(s)
- T. Mori
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - S. Masukawa
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - T. Kikkawa
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - A. Fujimori
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - A. Satoh
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - K. Matsumoto
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - M. Jikei
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - Y. Oishi
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - Y. Shibasaki
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
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Kikuchi T, Orihara K, Oikawa F, Han SI, Kuba M, Okuda K, Satoh A, Osaki Y, Takeuchi Y, Aita Y, Matsuzaka T, Iwasaki H, Yatoh S, Sekiya M, Yahagi N, Suzuki H, Sone H, Nakagawa Y, Yamada N, Shimano H. Intestinal CREBH overexpression prevents high-cholesterol diet-induced hypercholesterolemia by reducing Npc1l1 expression. Mol Metab 2016; 5:1092-1102. [PMID: 27818935 PMCID: PMC5081412 DOI: 10.1016/j.molmet.2016.09.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 09/06/2016] [Accepted: 09/10/2016] [Indexed: 12/12/2022] Open
Abstract
Objective The transcription factor cyclic AMP-responsive element-binding protein H (CREBH, encoded by Creb3l3) is highly expressed in the liver and small intestine. Hepatic CREBH contributes to glucose and triglyceride metabolism by regulating fibroblast growth factor 21 (Fgf21) expression. However, the intestinal CREBH function remains unknown. Methods To investigate the influence of intestinal CREBH on cholesterol metabolism, we compared plasma, bile, fecal, and tissue cholesterol levels between wild-type (WT) mice and mice overexpressing active human CREBH mainly in the small intestine (CREBH Tg mice) under different dietary conditions. Results Plasma cholesterol, hepatic lipid, and cholesterol crystal formation in the gallbladder were lower in CREBH Tg mice fed a lithogenic diet (LD) than in LD-fed WTs, while fecal cholesterol output was higher in the former. These results suggest that intestinal CREBH overexpression suppresses cholesterol absorption, leading to reduced plasma cholesterol, limited hepatic supply, and greater excretion. The expression of Niemann–Pick C1-like 1 (Npc1l1), a rate-limiting transporter mediating intestinal cholesterol absorption, was reduced in the small intestine of CREBH Tg mice. Adenosine triphosphate-binding cassette transporter A1 (Abca1), Abcg5/8, and scavenger receptor class B, member 1 (Srb1) expression levels were also reduced in CREBH Tg mice. Promoter assays revealed that CREBH directly regulates Npc1l1 expression. Conversely, CREBH null mice exhibited higher intestinal Npc1l1 expression, elevated plasma and hepatic cholesterol, and lower fecal output. Conclusion Intestinal CREBH regulates dietary cholesterol flow from the small intestine by controlling the expression of multiple intestinal transporters. We propose that intestinal CREBH could be a therapeutic target for hypercholesterolemia. Plasma cholesterol, hepatic lipid, and gallstones were lower in CREBH Tg mice. Expression of intestinal Npc1l1 was reduced in CREBH Tg mice. CREBH directly down-regulates mouse Npc1l1 promoter activity. Intestinal CREBH regulates dietary cholesterol flow from the small intestine.
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Key Words
- ABCG5/8, adenosine triphosphate-binding cassette transporter G5/G8
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- Abca1, ATP-binding cassette, sub-family A1
- Apoa4, apolipoprotein A-IV
- CREBH
- CREBH, cyclic AMP-responsive element-binding protein H
- Cholesterol
- Cpt1a, carnitine palmitoyltransferase 1a, liver
- Cyp7a1, cytochrome P450, family 7, subfamily a, polypeptide 1
- ER, endoplasmic reticulum
- FGF21, fibroblast growth factor 21
- FXR, Farnesoid X receptor
- Intestine
- LD, lithogenic diet
- LPL, lipoprotein lipase
- LXR, liver X receptor
- NEFA, non-esterified fatty acids
- NPC1L1, Nieman Pick C1-like 1
- Npc1l1
- PPARα, proliferator activated receptor alpha
- RCT, reverse cholesterol transport
- SREBP, sterol regulatory element-binding protein
- Shp, small heterodimer partner
- Srb1, scavenger receptor class B, member 1
- Srebf, sterol regulatory element-binding factor
- TG, triglyceride
- WT, wild type
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Affiliation(s)
- Takuya Kikuchi
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Kana Orihara
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Fusaka Oikawa
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Song-Iee Han
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Motoko Kuba
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Kanako Okuda
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Aoi Satoh
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yoshinori Osaki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yoshinori Takeuchi
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yuichi Aita
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Takashi Matsuzaka
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hitoshi Iwasaki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Shigeru Yatoh
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Motohiro Sekiya
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Naoya Yahagi
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hiroaki Suzuki
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hirohito Sone
- Department of Hematology, Endocrinology and Metabolism, Niigata University Faculty of Medicine, Niigata, Niigata 951-8510, Japan
| | - Yoshimi Nakagawa
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
| | - Nobuhiro Yamada
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hitoshi Shimano
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Life Science Center, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba 305-8577, Japan.
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Lee S, Izawa H, Satoh A, Fujita C, Suzuki T. Bone metabolism against mechanical stress shows differing responses in growth periods and adulthood. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3208] [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]
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Nakagawa Y, Satoh A, Yabe S, Furusawa M, Tokushige N, Tezuka H, Mikami M, Iwata W, Shingyouchi A, Matsuzaka T, Kiwata S, Fujimoto Y, Shimizu H, Danno H, Yamamoto T, Ishii K, Karasawa T, Takeuchi Y, Iwasaki H, Shimada M, Kawakami Y, Urayama O, Sone H, Takekoshi K, Kobayashi K, Yatoh S, Takahashi A, Yahagi N, Suzuki H, Yamada N, Shimano H. Hepatic CREB3L3 controls whole-body energy homeostasis and improves obesity and diabetes. Endocrinology 2014; 155:4706-19. [PMID: 25233440 DOI: 10.1210/en.2014-1113] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [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] [Indexed: 01/04/2023]
Abstract
Transcriptional regulation of metabolic genes in the liver is the key to maintaining systemic energy homeostasis during starvation. The membrane-bound transcription factor cAMP-responsive element-binding protein 3-like 3 (CREB3L3) has been reported to be activated during fasting and to regulate triglyceride metabolism. Here, we show that CREB3L3 confers a wide spectrum of metabolic responses to starvation in vivo. Adenoviral and transgenic overexpression of nuclear CREB3L3 induced systemic lipolysis, hepatic ketogenesis, and insulin sensitivity with increased energy expenditure, leading to marked reduction in body weight, plasma lipid levels, and glucose levels. CREB3L3 overexpression activated gene expression levels and plasma levels of antidiabetic hormones, including fibroblast growth factor 21 and IGF-binding protein 2. Amelioration of diabetes by hepatic activation of CREB3L3 was also observed in several types of diabetic obese mice. Nuclear CREB3L3 mutually activates the peroxisome proliferator-activated receptor (PPAR) α promoter in an autoloop fashion and is crucial for the ligand transactivation of PPARα by interacting with its transcriptional regulator, peroxisome proliferator-activated receptor gamma coactivator-1α. CREB3L3 directly and indirectly controls fibroblast growth factor 21 expression and its plasma level, which contributes at least partially to the catabolic effects of CREB3L3 on systemic energy homeostasis in the entire body. Therefore, CREB3L3 is a therapeutic target for obesity and diabetes.
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Affiliation(s)
- Yoshimi Nakagawa
- Department of Internal Medicine (Endocrinology and Metabolism) (Y.N., A.Sa., S.Yab., M.F., N.T., H.T., M.M., W.I., A.Sh., T.M., S.K., Y.F., H.Shimi., H.D., T.Y., K.I., T.K., Y.T., H.I., M.S., Y.K., O.U., H.So., K.T., K.K., S.Yat., A.T., N.Yah., H.Su., N.Yam., H.Shima.), Division of Clinical Medicine, Faculty of Medicine, and 2International Institute for Integrative Sleep Medicine (WPI-IIIS) (Y.N., H.Shima.), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
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Asaka T, Kitagawa Y, Hata H, Sato J, Satoh A, Miyakoshi M. The usefulness of FDG-PET for monitoring hyperbaric oxygen therapy in treatment of bisphosphonate-related osteonecrosis of jaws (BRONJ). J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.160] [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: 10/24/2022]
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Satoh A, Hata H, Miyakoshi M, Yoshikawa K, Sato J, Kitagawa Y. Clinicopathological investigation of selective neck dissection( Level I ∼ IV ). J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.304] [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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22
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Kawase K, Yamada M, Satoh H, Satoh A, Tsujihata M. Alice in Wonderland syndrome: A case report. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.738] [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: 10/26/2022]
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Yuasa T, Mutsukura K, Nakao Y, Ichinose K, Tomita I, Satoh H, Satoh A, Seto M, Ochi M, Tsujihata M. The volume DWI method increases/INS; detectability of small ischemic lesions in patients with transient global amnesia. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.972] [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: 10/26/2022]
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Fujimoto Y, Nakagawa Y, Satoh A, Okuda K, Shingyouchi A, Naka A, Matsuzaka T, Iwasaki H, Kobayashi K, Yahagi N, Shimada M, Yatoh S, Suzuki H, Yogosawa S, Izumi T, Sone H, Urayama O, Yamada N, Shimano H. TFE3 controls lipid metabolism in adipose tissue of male mice by suppressing lipolysis and thermogenesis. Endocrinology 2013; 154:3577-88. [PMID: 23885019 DOI: 10.1210/en.2013-1203] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [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] [Indexed: 11/19/2022]
Abstract
Transcription factor E3 (TFE3) is a transcription factor that binds to E-box motifs and promotes energy metabolism-related genes. We previously reported that TFE3 directly binds to the insulin receptor substrate-2 promoter in the liver, resulting in increased insulin response. However, the role of TFE3 in other tissues remains unclear. In this study, we generated adipose-specific TFE3 transgenic (aP2-TFE3 Tg) mice. These mice had a higher weight of white adipose tissue (WAT) and brown adipose tissue than wild-type (WT) mice under fasting conditions. Lipase activity in the WAT in these mice was lower than that in the WT mice. The mRNA level of adipose triglyceride lipase (ATGL), the rate-limiting enzyme for adipocyte lipolysis, was significantly decreased in aP2-TFE3 Tg mice. The expression of Foxo1, which directly activates ATGL expression, was also suppressed in transgenic mice. Promoter analysis confirmed that TFE3 suppressed promoter activities of the ATGL gene. In contrast, G0S2 and Perilipin1, which attenuate ATGL activity, were higher in transgenic mice than in WT mice. These results indicated that the decrease in lipase activity in adipose tissues was due to a decrease in ATGL expression and suppression of ATGL activity. We also showed that thermogenesis was suppressed in aP2-TFE3 Tg mice. The decrease in lipolysis in WAT of aP2-TFE3 Tg mice inhibited the supply of fatty acids to brown adipose tissue, resulting in the inhibition of the expression of thermogenesis-related genes such as UCP1. Our data provide new evidence that TFE3 regulates lipid metabolism by controlling the gene expression related to lipolysis and thermogenesis in adipose tissue.
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Affiliation(s)
- Yuri Fujimoto
- PhD, or Hitoshi Shimano, MD, PhD, Department of Internal Medicine (Metabolism and Endocrinology), Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Japan 305-8575. ; or
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Oikawa J, Niwano S, Ishizue N, Yoshizawa T, Satoh A, Kurokawa S, Hatakeyama Y, Fukaya H, Niwano H. Use of statins suppress the shorting of the fibrillation cycle length in patients with new-onset atrial fibrillation -Possible anti-remodeling effect of statin for atrial structural remodeling. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4964] [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: 11/14/2022] Open
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Naka A, Iida KT, Nakagawa Y, Iwasaki H, Takeuchi Y, Satoh A, Matsuzaka T, Ishii KA, Kobayashi K, Yatoh S, Shimada M, Yahagi N, Suzuki H, Sone H, Yamada N, Shimano H. TFE3 inhibits myoblast differentiation in C2C12 cells via down-regulating gene expression of myogenin. Biochem Biophys Res Commun 2012; 430:664-9. [PMID: 23211595 DOI: 10.1016/j.bbrc.2012.11.094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Accepted: 11/20/2012] [Indexed: 11/16/2022]
Abstract
Transcription factor E3 (TFE3) belongs to a basic helix-loop-helix family, and is involved in the biology of osteoclasts, melanocytes and their malignancies. We previously reported the metabolic effects of TFE3 on insulin in the liver and skeletal muscles in animal models. In the present study, we explored a novel role for TFE3 in a skeletal muscle cell line. When TFE3 was overexpressed in C2C12 myoblasts by adenovirus before induction of differentiation, myogenic differentiation of C2C12 cells was significantly inhibited. Adenovirus-mediated TFE3 overexpression also suppressed the gene expression of muscle regulatory factors (MRFs), such as MyoD and myogenin, during C2C12 differentiation. In contrast, knockdown of TFE3 using adenovirus encoding short-hairpin RNAi specific for TFE3 dramatically promoted myoblast differentiation associated with significantly increased expression of MRFs. Consistent with these findings, promoter analyses via luciferase reporter assay and electrophoretic mobility shift assay suggested that TFE3 negatively regulated myogenin promoter activity by direct binding to an E-box, E2, in the myogenin promoter. These findings indicated that TFE3 has a regulatory role in myoblast differentiation, and that transcriptional suppression of myogenin expression may be part of the mechanism of action.
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Affiliation(s)
- Ayano Naka
- Doctoral Program of Sports Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
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Lee S, Kumagai T, Hashimoto J, Satoh A, Suzuki T, Yamai K, Ohta S. A change of osteocalcin (OC) and tartrate resistant acid phosphatase 5b (TRACP-5b) with the menstrual cycle. Horm Metab Res 2012; 44:699-703. [PMID: 22517558 DOI: 10.1055/s-0032-1311606] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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] [Indexed: 10/28/2022]
Abstract
Bone metabolism markers associated with 4 menstrual cycle phases were evaluated in 14 healthy young females without menstrual disorder. Menstrual cycle phases were confirmed with basal body temperature for 3 months, luteinizing hormone kits, and sexual hormone concentrations of serum. The bone metabolism markers used were osteocalcin (OC), which was measured by immunoradiometric assay (IRMA), and tartrate resistant acid phosphatase 5b (TRACP-5b), which was measured by enzyme immunometric assay (EIA). The highest values of OC and TRACP-5b were observed in the ovulation phase, and TRACP-5b increased significantly when compared with levels in the menstrual phase (p<0.05). Furthermore, the changes in sex-hormone secretion involved in OC and TRACP-5b showed specific patterns during the menstrual cycle. In other words, TRACP-5b levels are influenced by sex hormones produced during the menstrual period and are based on the bone-formation status. Therefore, it is presumed that the TRACP-5b levels during ovulation play a central role in bone formation and bone metabolism.
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Affiliation(s)
- S Lee
- Department of Physical Therapy, Aomori University of Health and Welfare, Aomori-shi, Aomori, Japan.
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Fujimoto Y, Nakagawa Y, Shingyouchi A, Tokushige N, Nakanishi N, Satoh A, Matsuzaka T, Ishii KA, Iwasaki H, Kobayashi K, Yatoh S, Suzuki H, Yahagi N, Urayama O, Yamada N, Shimano H. Dicer has a crucial role in the early stage of adipocyte differentiation, but not in lipid synthesis, in 3T3-L1 cells. Biochem Biophys Res Commun 2012; 420:931-6. [DOI: 10.1016/j.bbrc.2012.03.110] [Citation(s) in RCA: 15] [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] [Received: 03/20/2012] [Accepted: 03/21/2012] [Indexed: 11/30/2022]
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Abstract
Questionnaires returned from 202 patients who had undergone acoustic neuroma resection were analyzed with special reference to the effect on tinnitus of surgery that attempted to preserve hearing versus surgery that did not. We also examined the relationship between postoperative hearing and tinnitus following surgery to preserve hearing (103 patients, HP group). The incidence of preoperative tinnitus in the HP group was 78.6%; postoperatively it increased to 89.3% (p = 0.0367). The remaining 99 patients (non-HP) underwent labyrinthectomy during tumor resection. In this group tinnitus occurred in 72.7% preoperatively and in 67.3% postoperatively (p = 0.4097). Our findings show that when tinnitus was absent preoperatively, 85% of the HP group developed it postoperatively compared to 31% of patients in the non-HP group. The outcome of surgery to preserve hearing had no bearing on the loudness or annoyance of postoperative tinnitus. Although postoperative tinnitus is tolerable to most patients, they must be informed prior to surgery about its possible occurrence or worsening, especially if the goal is to preserve hearing.
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Hiramatsu A, Miwa H, Shikami M, Ikai T, Tajima E, Yamamoto H, Imai N, Hattori A, Kyo T, Watarai M, Miura K, Satoh A, Itoh M, Imamura A, Mihara H, Katoh Y, Nitta M. Disease-specific expression of VEGF and its receptors in AML cells: possible autocrine pathway of VEGF/type1 receptor of VEGF in t(15;17) AML and VEGF/type2 receptor of VEGF in t(8;21) AML. Leuk Lymphoma 2009; 47:89-95. [PMID: 16465716 DOI: 10.1080/10428190500270386] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [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: 10/25/2022]
Abstract
Various angiogenic factors, such as vascular endothelial growth factor (VEGF) and an associated molecule, placenta growth factor (PlGF), are thought to be important for normal and malignant hematopoiesis. This study examined mRNA expression of VEGF, PlGF and receptors for these molecules in AML cells and identified the disease-specific patterns of expression. AML M3 having t(15;17) abnormality showed highest expression of VEGF and VEGF receptor type 1 (VEGFR1), suggesting the autocrine pathway of VEGF-VEGFR1. Then, t(8;21) AML demonstrated augmented expression of VEGF and VEGF receptor type 2 (VEGFR2), suggesting VEGF-VEGFR2 autocrine pathway. Then, addition of VEGFR2 kinase inhibitor in Kasumi-1, a t(8;21) AML cell line, resulted in marked inhibition of cell growth, although growth inhibitory effect of R2 kinase inhibitor to HL-60 was marginal. In addition, cell cycle analysis study showed S-phase cell population reduction by R2 kinase inhibitor in Kasumi-1, but not in HL-60. This observation is thought to be the rationale for novel molecular target therapy directed to angiogenic molecules.
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MESH Headings
- Adult
- Aged
- Autocrine Communication/genetics
- Cell Cycle/drug effects
- Cell Cycle/physiology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Chromosome Aberrations
- Chromosomes, Human, Pair 15/genetics
- Chromosomes, Human, Pair 17/genetics
- Chromosomes, Human, Pair 21/genetics
- Chromosomes, Human, Pair 8/genetics
- Disease
- Enzyme Inhibitors/pharmacology
- Gene Expression Regulation, Leukemic/genetics
- HL-60 Cells
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Middle Aged
- Placenta Growth Factor
- Pregnancy Proteins/biosynthesis
- Pregnancy Proteins/genetics
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Translocation, Genetic/genetics
- Tumor Cells, Cultured
- Vascular Endothelial Growth Factor A/biosynthesis
- Vascular Endothelial Growth Factor A/genetics
- Vascular Endothelial Growth Factor Receptor-1/biosynthesis
- Vascular Endothelial Growth Factor Receptor-1/genetics
- Vascular Endothelial Growth Factor Receptor-2/antagonists & inhibitors
- Vascular Endothelial Growth Factor Receptor-2/biosynthesis
- Vascular Endothelial Growth Factor Receptor-2/genetics
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Affiliation(s)
- A Hiramatsu
- Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Japan
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Kume K, Masamune A, Takagi Y, Kikuta K, Watanabe T, Satoh K, Satoh A, Hirota M, Hamada S, Shimosegawa T. A loss-of-function p.G191R variant in the anionic trypsinogen (PRSS2) gene in Japanese patients with pancreatic disorders. Gut 2009; 58:820-4. [PMID: 19052022 DOI: 10.1136/gut.2008.151688] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [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: 12/08/2022]
Abstract
OBJECTIVE There is a concept that pancreatitis results from an imbalance of proteases and their inhibitors within the pancreatic parenchyma. It has been recently shown that a loss-of-function variant, c.571G>A (p.G191R), in the anionic trypsinogen (PRSS2) gene protects against chronic pancreatitis in European populations. Here we examined the association of the p.G191R variant with pancreatic disorders in Japan. METHODS Genomic DNA was prepared from 378 healthy controls and 604 patients with pancreatic disorders (241 patients with chronic pancreatitis, 174 with acute pancreatitis, and 189 with pancreatic neoplasm). Mutational analysis of the PRSS2 gene was performed by polymerase chain reaction-restriction fragment length polymorphism and direct sequencing. RESULTS The heterozygous p.G191R variant was found in three of 241 (1.2%) patients with chronic pancreatitis, in seven of 174 (4.0%) patients with acute pancreatitis, and in 12 of 189 (6.3%) patients with pancreatic neoplasm. The p.G191R variant was found in 25 (two were homozygous and 23 were heterozygous) of 378 (6.6%) healthy controls. The p.G191R frequency in patients with chronic pancreatitis was lower than that in healthy controls (p = 0.001; odds ratio (OR) 0.178; 95% confidence interval (CI) = 0.057 to 0.561). The p.G191R frequency was lower in patients with alcoholic (0.9%; p = 0.015; OR, 0.132; 95% CI, 0.022 to 0.779) and idiopathic (1.0%; p = 0.025; OR, 0.144; 95% CI, 0.025 to 0.851) chronic pancreatitis than that in healthy controls. There were no statistical differences in the p.G191R frequency between healthy controls and patients with acute pancreatitis or with pancreatic neoplasm. Patients with alcoholic acute pancreatitis (n = 59) had no variant carrier, and the p.G191R frequency was lower than that in healthy controls (p = 0.035). CONCLUSION The p.G191R variant protected against alcoholic and idiopathic chronic pancreatitis as well as alcoholic acute pancreatitis in Japan.
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Affiliation(s)
- K Kume
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574 Japan.
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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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Kobayashi S, Karasudani H, Koguchi Y, Tsuru K, Wada M, Miyata A, Nakamura H, Satoh A, Watanabe Y, Yagishita T. Endovascular Treatment for Ruptured VA Dissecting Aneurysm Involving the Origin of PICA. Interv Neuroradiol 2008; 10 Suppl 1:173-9. [PMID: 20587296 DOI: 10.1177/15910199040100s130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2004] [Accepted: 01/20/2004] [Indexed: 11/15/2022] Open
Abstract
SUMMARY Ruptured vertebral artery dissecting aneurysms (VADA) re-bleed frequently especially during first 24 hours, which makes the prognosis of the patients with this disease poor. Recently endovascular trapping with detachable platinum coils at an acute stage has been done for preventing re-bleeding. However, for the cases with dissecting aneurysm involving the origin of the posterior inferior cerebellar artery (PICA), these methods are hardly indicated because of the risk of ischemic complication in the PICA territory. We proposed a simple and effective therapeutic method for these cases. We occluded the affected vertebral artery (VA) near its root intending to introduce collateral blood flow from the deep cervical artery into the VA trunk. The controlled antegrade VA flow and retrograde flow from the contralateral VA make a watershed at the dissecting aneurysm, which promotes thrombosis of pseudolumen with preserving the antegrade blood flow of PICA.We treated two cases with ruptured VADA involving PICA, and in both cases thrombosis of aneurysm was obtained without any ischemic complication. This method would be considered as a treatment of choice to the cases with VADA involving PICA.
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Affiliation(s)
- S Kobayashi
- Department of Neurosurgery, Chiba Emergency Medical Center, Chiba; Japan
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Kumagae S, Adachi H, Enomoto M, Fukami A, Satoh A, Otsuka M, Nanjo Y, Furuki K, Imaizumi T. PLASMA ENDOTHELIN-1 LEVEL IS NOT A PREDICTOR FOR THE DEVELOPMENT OF HYPERTENSION; THE 7-YEAR FOLLOW-UP STUDY IN JAPANESE GENERAL POPULATION. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70339-8] [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: 10/22/2022]
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Enomoto M, Adachi H, Satoh A, Fukami A, Otsuka M, Kumagae S, Furuki K, Nanjo Y, Imaizumi T. INFLAMMATORY MARKERS AND ALL-CAUSE DEATH IN A GENERAL POPULATION. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70459-8] [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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Fukami A, Adachi H, Nanjo Y, Furuki K, Kumagae S, Otsuka M, Satoh A, Enomoto M, Imaizumi T. MCP-1 MAY BE A KEY FACTOR FOR CARDIO-RENAL SYNDROME. CROSS SECTIONAL STUDY IN A GENERAL COHORT. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70475-6] [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: 11/25/2022]
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Sato J, Goto J, Yamazaki Y, Satoh A, Tei K, Kitagawa Y. A clinical study on the prevention of complications in inpatients with oral carcinoma by systematic oral care. Int J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.ijom.2007.08.046] [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: 10/22/2022]
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Enomoto M, Adachi H, Furuki K, Kumagae S, Otsuka M, Sigetoh Y, Fukami A, Satoh A, Imaizumi T. PO16-457 IMPACT OF HIGHER BLOOD PRESSURE ON THE RISK OF DEATH IN 27-YEAR FOLLOW-UP STUDY. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71467-8] [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]
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Satoh A, Ochiai T, Okazumi S, Shutoh K, Mochizuki R, Hayano K, Aoyagi T, Narushima K, Saitoh S. 133 POSTER Role of perfusion CT in assessing tumor blood flow and malignancy level of gastric cancer, a pilot study. Eur J Surg Oncol 2006. [DOI: 10.1016/s0748-7983(06)70568-6] [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] Open
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Satoh A, Adachi H, Hirai Y, Hiratsuka A, Enomoto M, Furuki K, Hino A, Takeuchi T, Imaizumi T. Th-P15:120 High plasma level of remnant-like particle cholesterol in the metabolic syndrome. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)82080-5] [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]
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Hirai Y, Adachi H, Enomoto M, Satoh A, Furuki K, Hino A, Imaizumi T. Mo-P1:65 Plasma endothelin-1(ET-1) is a useful marker for renal dysfunction. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80200-x] [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]
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Furuki K, Adachi H, Enomoto M, Satoh A, Hino A, Hirai Y, Matsuoka H, Imaizumi T. Mo-P1:66 Plasma levels of asymmetric dimethylarginine (ADMA) are related to intima-media thickness of the carotid artery in a general population. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80201-1] [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: 11/25/2022]
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Murai M, Toyota M, Satoh A, Suzuki H, Akino K, Mita H, Sasaki Y, Ishida T, Shen L, Garcia-Manero G, Issa JPJ, Hinoda Y, Tokino T, Imai K. Aberrant DNA methylation associated with silencing BNIP3 gene expression in haematopoietic tumours. Br J Cancer 2005; 92:1165-72. [PMID: 15756280 PMCID: PMC2361956 DOI: 10.1038/sj.bjc.6602422] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.1] [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: 12/31/2022] Open
Abstract
Hypoxia is a key factor contributing to the progression of human neoplasias and to the development of resistance to chemotherapy. BNIP3 is a proapoptotic member of the Bcl-2 protein family involved in hypoxia-induced cell death. We evaluated the expression and methylation status of BNIP3 gene to better understand the role of epigenetic alteration of its expression in haematopoietic tumours. Methylation of the region around the BNIP3 transcription start site was detected in four acute lymphocytic leukaemia, one multiple myeloma and one Burkitt lymphoma cell lines, and was closely associated with silencing the gene. That expression of BNIP3 was restored by treatment with 5-aza2′-deoxycytidine (5-aza-dC), a methyltransferase inhibitor, which confirmed the gene to be epigenetically inactivated by methylation. Notably, re-expression of BNIP3 using 5-aza2-dC also restored hypoxia-mediated cell death in methylated cell lines. Acetylation of histone H3 in the 5′ region of the gene, which was assessed using chromatin immunoprecipitation assays, correlated directly with gene expression and inversely with DNA methylation. Among primary tumours, methylation of BNIP3 was detected in five of 34 (15%) acute lymphocytic leukaemias, six of 35 (17%) acute myelogenous leukaemias and three of 14 (21%) multiple myelomas. These results suggest that aberrant DNA methylation of the 5′ CpG island and histone deacetylation play key roles in silencing BNIP3 expression in haematopoietic tumours.
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Affiliation(s)
- M Murai
- First Department of Internal Medicine, Sapporo Medical University, Sapporo 060-8556, Japan
| | - M Toyota
- First Department of Internal Medicine, Sapporo Medical University, Sapporo 060-8556, Japan
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, Sapporo 060-8556, Japan
- PRESTO, JST, Kawaguchi, 332-0012, Japan
- First Department of Internal Medicine, Sapporo Medical University, South 1,West 16, Chuo-ku, Sapporo 060-8543, Japan. E-mail:
| | - A Satoh
- First Department of Internal Medicine, Sapporo Medical University, Sapporo 060-8556, Japan
| | - H Suzuki
- First Department of Internal Medicine, Sapporo Medical University, Sapporo 060-8556, Japan
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, Sapporo 060-8556, Japan
| | - K Akino
- First Department of Internal Medicine, Sapporo Medical University, Sapporo 060-8556, Japan
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, Sapporo 060-8556, Japan
| | - H Mita
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, Sapporo 060-8556, Japan
| | - Y Sasaki
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, Sapporo 060-8556, Japan
| | - T Ishida
- First Department of Internal Medicine, Sapporo Medical University, Sapporo 060-8556, Japan
| | - L Shen
- Department of Leukemia, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - G Garcia-Manero
- Department of Leukemia, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - J-P J Issa
- Department of Leukemia, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Y Hinoda
- Division of Clinical Laboratory, Yamaguchi University School of Medicine, Ube 755-8505, Japan
| | - T Tokino
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, Sapporo 060-8556, Japan
| | - K Imai
- First Department of Internal Medicine, Sapporo Medical University, Sapporo 060-8556, Japan
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Koizumi W, Kurihara M, Satoh A, Takiuchi H, Tanabe S, Shimada K, Iwasaki R, Saigenji K. Phase 1/11 study of bi-weekly irinotecan plus cisplatin in the treatment of advanced gastric cancer. Anticancer Res 2005; 25:1257-62. [PMID: 15865075] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
OBJECTIVES To conduct a phase I/II study of irinotecan with cisplatin to establish a recommended dose, and assess the safety, efficacy and feasibility of this regimen in unresectable advanced or recurrent gastric cancer. PATIENTS AND METHODS In the phase I portion of the study, patients received a fixed dose of cisplatin (30 mg/m2) with escalating doses of irinotecan, ranging from 30 mg/m2 to 70 mg/m2, on days 1 and 15. In the phase II portion of the study, 40 patients were evaluated for response and safety at the recommended dose. RESULTS Eighteen patients were enrolled in the phase I study. Dose-limiting toxicity (diarrhea and neutropenia) appeared at the irinotecan dose of 70 mg/m2. Therefore, the recommended irinotecan dose was 60 mg/m2. In the phase II study, 40 patients received cisplatin (30 mg/m2) plus irinotecan (60 mg/m2). Twenty-five out of 40 patients had received prior chemotherapy. The median number of cycles was 3.5. The response rate was 32.5% (13/40) overall, and 53.3% (8/15) in patients without prior chemotherapy. The median time to tumor progression (TTP) was 162 days. The median survival time was 288 days. Four patients (10%) developed grade 4 neutropenia and 3 patients (7.5%) developed grade 4 anemia. The only observed non-hematological toxicity at grade 3 or higher was diarrhea, seen in 2.5% (1/40) of the patients. CONCLUSION Bi-weekly administration of irinotecan and cisplatin is safe and active for the management of unresectable advanced or recurrent gastric cancer.
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Affiliation(s)
- W Koizumi
- Department of Gastroenterology/Medical Oncology, Kitasato University East Hospital, 2-1-1 Asamizodai, Sagamihara, Kanagawa 228-8520, Japan.
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Masuoka H, Fujimori K, Sekiguchi S, Watanabe M, Wang H, Aiso T, Yamaya H, Satoh A, Satomi S. Beneficial effect of FR183998, a Na+/H+ exchanger inhibitor, on porcine pancreas allotransplantation retrieved from non–heart-beating donors. Transplant Proc 2005; 37:223-5. [PMID: 15808601 DOI: 10.1016/j.transproceed.2004.12.227] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [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: 11/20/2022]
Abstract
Activation of Na(+)/H(+) exchanger (NHE) may have an important role in the ischemia/reperfusion injury by producing intracellular calcium overload. Recent studies have shown a beneficial effect of an NHE inhibitor on the ischemia/reperfusion injury in the heart. In this study, we examined the effect of FR183998, a potent NHE inhibitor, in porcine pancreas allotransplantation from non-heart-beating Landrace pig donors (NHBDs). The four experimental groups included: untreated with no preservation (group 1; n = 3), treated with no preservation (group 2; n = 5), untreated with preservation (group 3; n = 6), and treated with preservation (group 4; n = 4). The preservation was made in ice-cold University of Wisconsin (UW) solution for 24 hours. The groups treated received 1 mg/kg FR183998 before donor cardiac arrest and 10 mg in the UW solution flush in situ. Serum blood glucose, insulin, and amylase were measured daily. An intravenous glucose tolerance test (IVGTT) was performed on the postoperative day (POD) 7 when pigs were sacrificed for histological examination. Graft survival rates on that day in groups 1,2,3, and 4 were 3 of 3; 5 of 5; 3 of 6; and 4 of 4, respectively. The mean K values of IVGTT in groups 3 and 4 were 0.78 +/- 0.10 and 1.27 +/- 0.16, respectively, which were significantly different (P < .05). Upon histological examination, pancreatic tissue in group 3 showed more severe edema and necrosis than other groups. FR183998 may be considered beneficial for ischemia/reperfusion injury to pancreatic grafts from NHBDs.
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Affiliation(s)
- H Masuoka
- Division of Advanced Surgical Science and Technology, Graduate School of Medicine, Tohoku University, Sendai, Japan.
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Satoh A, Nakamura H, Kobayashi S, Miyata A, Matsutani M. Management of severe subarachnoid hemorrhage; significance of assessment of both neurological and systemic insults at acute stage. Acta Neurochir Suppl 2005; 94:59-63. [PMID: 16060242 DOI: 10.1007/3-211-27911-3_10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In order to elucidate mutual interrelationship between neurological and systemic dysfunctions in patients with subarachnoid hemorrhage (SAH) at acute stage, neurological condition, systemic complications and plasma catecholamine (CA) level were studied in 1431 consecutive cases admitted within 72 hours after the onset. Five hundred and twenty-four cases with Glasgow Coma Scale (GCS) score 8 or less were assigned to the group of severely ill cases (G-ill), 907 cases with GCS score 9 or more to that of the less ill group (G-well). Plasma CA level was extremely high at super-acute stage within an hour after bleeding and lowered fairly quickly within 24 hours to the normal range. Assuming the value obtained from a formula of [blood sugar level (mg/dl)/serum potassium concentration (mEq/L)] as stress index (SI), SI correlates well (r = 0.4-0.6) with serum catecholamine level at acute stage. Thus, sympathetic hyperactivity after SAH can be grossly estimated with SI. SI over 40 means that patients might have considerable neurological insults as well as systemic ones. For patients in G-well, SI over 50 means that there may be risks for systemic complications even in cases with good neurological condition.
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Affiliation(s)
- A Satoh
- Department of Neurosurgery, Saitama Medical School, Saitama, Japan.
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Satoh A, Sota T, Ueda T, Enokido Y, Paik JC, Hori M. Evolutionary history of coastal tiger beetles in Japan based on a comparative phylogeography of four species. Mol Ecol 2004; 13:3057-69. [PMID: 15367120 DOI: 10.1111/j.1365-294x.2004.02274.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [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: 11/28/2022]
Abstract
To reveal the phylogeographical patterns of four species of coastal tiger beetles in Japan (Lophyridia angulata, Abroscelis anchoralis, Cicindela lewisii and Chaetodera laetescripta), we conducted phylogenetic and nested clade analysis (NCA) using the mitochondrial DNA sequences of two loci (COI and 16S rRNA), with specimens sampled from Japan and neighbouring countries. Abroscelis anchoralis and L. angulata have similar disjunct distributions in Japan. The NCA indicated past fragmentation involving three isolated areas of A. anchoralis. In contrast, local populations of L. angulata in Japan shared the same haplotype, indicating recent vicariance. Co-occurrence of haplotypes from several divergent clades in Japanese populations of Ch. laetescripta suggested ancient vicariance and subsequent intermixing of local populations. The tree topology of C. lewisii, with shallow branches and little geographical segregation of haplotypes between Japan and Korea or within Japan, suggested that the Japanese population was segregated from the Korean population only recently. Restricted gene flow, with isolation by distance, was inferred for various geographical associations of haplotypes for coastal tiger beetles in the NCA. Based on these phylogeographical patterns, coupled with a molecular clock approach, the evolutionary history of four species of coastal tiger beetles was deduced, with the additional consideration of the competitive relationships among those species. We also discuss the conservation of highly localized A. anchoralis populations in Japan, using the concept of evolutionarily significant units.
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Affiliation(s)
- A Satoh
- Department of Zoology, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
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Morimoto Y, Toyota M, Satoh A, Murai M, Mita H, Suzuki H, Takamura Y, Ikeda H, Ishida T, Sato N, Tokino T, Imai K. Inactivation of class II transactivator by DNA methylation and histone deacetylation associated with absence of HLA-DR induction by interferon-gamma in haematopoietic tumour cells. Br J Cancer 2004; 90:844-52. [PMID: 14970863 PMCID: PMC2410180 DOI: 10.1038/sj.bjc.6601602] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [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: 12/31/2022] Open
Abstract
By presenting immunogenic peptides at the cell surface, major histocompatibility complex (MHC) class II molecules play a key role in the control of adaptive immune responses. Whether expressed constitutively or induced by interferon-γ, expression of MHC class II molecules is regulated via coactivator class II transactivator (CIITA); moreover, suppression of their expression is one mechanism by which cancer cells escape host immunity. In this study, we surveyed the relationship between the expression of one MHC class II antigen, HLA–DR, and its coactivators in a group of haematopoietic cell lines, and explored the role of the aberrant DNA methylation in silencing HLA-DR expression. Among 26 cell lines studied, HLA-DR expression was lost from eight T-cell and two myeloid leukaemia cell lines, and this loss was closely associated with suppression of CIITA-PIV expression. Notably, nine of the 10 cell lines that lost CIITA-PIV expression showed methylation of the gene's 5′ CpG island. Thus, DNA methylation is believed to inhibit the expression of MHC class II molecules in haematopoietic tumour cells by silencing its coactivator, CIITA-PIV. Furthermore, methylation of CIITA-PIV was detected in seven of 32 primary acute myeloid leukaemia specimens, indicating that epigenetic alteration is not a cell line-specific phenomenon. Collectively, these data suggest that, by suppressing expression of MHC class II molecules, epigenetic inactivation of CIITA provides a survival advantage to a subset of haematopoietic tumours.
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Affiliation(s)
- Y Morimoto
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - M Toyota
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan. E-mail:
| | - A Satoh
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - M Murai
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - H Mita
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - H Suzuki
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - Y Takamura
- Department of Pathology, Sapporo Medical University, South 1,West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - H Ikeda
- Department of Pathology, Sapporo Medical University, South 1,West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - T Ishida
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - N Sato
- Department of Pathology, Sapporo Medical University, South 1,West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - T Tokino
- Department of Molecular Biology, Cancer Research Institute, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
| | - K Imai
- First Department of Internal Medicine, Sapporo Medical University, South 1, West 17, Chuo-ku, Sapporo 060-8543, Japan
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Yokoyama Y, Aonuma K, Yamauchi Y, Kumagai K, Sekiguchi Y, Kurihara K, Tanaka Y, Satoh A, Takahashi A. P-180 Ventricular fibrillationinduction methods without conscious sedation in patients with implantable cardioverter defibrillator. Europace 2003. [DOI: 10.1016/eupace/4.supplement_2.b109-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Y. Yokoyama
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - K. Aonuma
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - Y. Yamauchi
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - K. Kumagai
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - Y. Sekiguchi
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - K. Kurihara
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - Y. Tanaka
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - A. Satoh
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
| | - A. Takahashi
- Yokosuka Kyosai General Hospital
,
Kanagawa, Japan
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