1
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Fuwa M, Kajita K, Mori I, Asano M, Kajita T, Senda T, Inagaki T, Morita H. Mitochondrial fractions located in the cytoplasmic and peridroplet areas of white adipocytes have distinct roles. FEBS Lett 2024. [PMID: 38658180 DOI: 10.1002/1873-3468.14877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 04/26/2024]
Abstract
The role of mitochondria in white adipocytes (WAs) has not been fully explored. A recent study revealed that brown adipocytes contain functionally distinct mitochondrial fractions, cytoplasmic mitochondria, and peridroplet mitochondria. However, it is not known whether such a functional division of mitochondria exists in WA. Herein, we observed that mitochondria could be imaged and mitochondrial DNA and protein detected in pellets obtained from the cytoplasmic layer and oil layer of WAs after centrifugation. The mitochondria in each fraction were designated as cytoplasmic mitochondria (CMw) and peridroplet mitochondria (PDMw) in WAs, respectively. CMw had higher β-oxidation activity than PDMw, and PDMw was associated with diacylglycerol acyltransferase 2. Therefore, CMw may be involved in β-oxidation and PDMw in droplet expansion in WAs.
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Affiliation(s)
- Masayuki Fuwa
- Department of General Internal Medicine, Gifu University Graduate School of Medicine, Japan
| | - Kazuo Kajita
- Department of Health and Nutrition, Faculty of Home Economics, Gifu Women's University, Japan
| | - Ichiro Mori
- Department of General Internal Medicine, Gifu University Graduate School of Medicine, Japan
| | - Motochika Asano
- Department of General Internal Medicine, Gifu University Graduate School of Medicine, Japan
| | - Toshiko Kajita
- Department of General Internal Medicine, Gifu University Graduate School of Medicine, Japan
| | - Takao Senda
- Department of Anatomy, Gifu University Graduate School of Medicine, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunnma University, Maebashi-shi, Japan
| | - Hiroyuki Morita
- Department of General Internal Medicine, Gifu University Graduate School of Medicine, Japan
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2
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Kawashima A, Shimomura A, Inagaki T. Idiopathic Mesenteric Phlebosclerosis Secondary to Chinese Herbal Medicine Intake in an Older Adult. Am J Trop Med Hyg 2023; 109:715-716. [PMID: 37696511 PMCID: PMC10551086 DOI: 10.4269/ajtmh.22-0772] [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] [Received: 12/13/2022] [Accepted: 07/27/2023] [Indexed: 09/13/2023] Open
Affiliation(s)
- Akira Kawashima
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Akira Shimomura
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takeshi Inagaki
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
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3
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Suzuki T, Komatsu T, Shibata H, Tanioka A, Vargas D, Kawabata-Iwakawa R, Miura F, Masuda S, Hayashi M, Tanimura-Inagaki K, Morita S, Kohmaru J, Adachi K, Tobo M, Obinata H, Hirayama T, Kimura H, Sakai J, Nagasawa H, Itabashi H, Hatada I, Ito T, Inagaki T. Crucial role of iron in epigenetic rewriting during adipocyte differentiation mediated by JMJD1A and TET2 activity. Nucleic Acids Res 2023; 51:6120-6142. [PMID: 37158274 PMCID: PMC10325906 DOI: 10.1093/nar/gkad342] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 04/10/2023] [Accepted: 04/21/2023] [Indexed: 05/10/2023] Open
Abstract
Iron metabolism is closely associated with the pathogenesis of obesity. However, the mechanism of the iron-dependent regulation of adipocyte differentiation remains unclear. Here, we show that iron is essential for rewriting of epigenetic marks during adipocyte differentiation. Iron supply through lysosome-mediated ferritinophagy was found to be crucial during the early stage of adipocyte differentiation, and iron deficiency during this period suppressed subsequent terminal differentiation. This was associated with demethylation of both repressive histone marks and DNA in the genomic regions of adipocyte differentiation-associated genes, including Pparg, which encodes PPARγ, the master regulator of adipocyte differentiation. In addition, we identified several epigenetic demethylases to be responsible for iron-dependent adipocyte differentiation, with the histone demethylase jumonji domain-containing 1A and the DNA demethylase ten-eleven translocation 2 as the major enzymes. The interrelationship between repressive histone marks and DNA methylation was indicated by an integrated genome-wide association analysis, and was also supported by the findings that both histone and DNA demethylation were suppressed by either the inhibition of lysosomal ferritin flux or the knockdown of iron chaperone poly(rC)-binding protein 2. In summary, epigenetic regulations through iron-dependent control of epigenetic enzyme activities play an important role in the organized gene expression mechanisms of adipogenesis.
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Affiliation(s)
- Tomohiro Suzuki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Tetsuro Komatsu
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Hiroshi Shibata
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Akiko Tanioka
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Diana Vargas
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Reika Kawabata-Iwakawa
- Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research, Gunma University, Gunma371-8511, Japan
| | - Fumihito Miura
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan
| | - Shinnosuke Masuda
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Mayuko Hayashi
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Kyoko Tanimura-Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo 113-8602, Japan
| | - Sumiyo Morita
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
| | - Junki Kohmaru
- Institute for Molecular and Cellular Regulation Joint Usage/Research Support Center, Gunma University, Gunma371-8512, Japan
| | - Koji Adachi
- Kaihin Makuhari Laboratory, PerkinElmer Japan Co., Ltd., Chiba261-8501, Japan
| | - Masayuki Tobo
- Institute for Molecular and Cellular Regulation Joint Usage/Research Support Center, Gunma University, Gunma371-8512, Japan
| | - Hideru Obinata
- Education and Research Support Center, Gunma University Graduate School of Medicine, Gunma371-8511, Japan
| | - Tasuku Hirayama
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, Gifu501-1196, Japan
| | - Hiroshi Kimura
- Cell Biology Center, Tokyo Institute of Technology, Kanagawa226-8503, Japan
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo153-8904, Japan
- Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Hideko Nagasawa
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, Gifu501-1196, Japan
| | - Hideyuki Itabashi
- Graduate School of Science and Technology, Gunma University, Gunma376-8515, Japan
| | - Izuho Hatada
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
- Viral Vector Core, Gunma University Initiative for Advanced Research, Gunma371-8511, Japan
| | - Takashi Ito
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma371-8512, Japan
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4
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Kuroiwa R, Tateishi Y, Oshima T, Shibuya K, Inagaki T, Murata A, Kuwabara S. Cardiovascular autonomic dysfunction induced by mechanical insufflation-exsufflation in Guillain-Barré syndrome. Respirol Case Rep 2023; 11:e01135. [PMID: 37065169 PMCID: PMC10098674 DOI: 10.1002/rcr2.1135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 03/21/2023] [Indexed: 04/18/2023] Open
Abstract
Mechanical insufflation-exsufflation (MI-E) is an effective airway clearance device for impaired cough associated with respiratory muscle weakness caused by neuromuscular disease. Its complications on the respiratory system, such as pneumothorax, are well-recognized, but the association of the autonomic nervous system dysfunction with MI-E has never been reported. We herein describe two cases of Guillain-Barré syndrome with cardiovascular autonomic dysfunction during MI-E: a 22-year-old man who developed transient asystole and an 83-year-old man who presented with prominent fluctuation of blood pressure. These episodes occurred during the use of MI-E with abnormal cardiac autonomic testing, such as heart rate variability in both patients. While Guillain-Barré syndrome itself may cause cardiac autonomic dysfunction, MI-E possibly caused or enhanced the autonomic dysfunction by an alternation of thoracic cavity pressure. The possibility of MI-E-related cardiovascular complications should be recognized, and its appropriate monitoring and management are necessary, particularly when used for Guillain-Barré syndrome patients.
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Affiliation(s)
- Ryota Kuroiwa
- Division of Rehabilitation MedicineChiba University HospitalChibaJapan
- Department of Neurology, Graduate School of MedicineChiba UniversityChibaJapan
| | - Yoshihisa Tateishi
- Department of Emergency and Critical Care MedicineChiba Kaihin Municipal HospitalChibaJapan
| | - Taku Oshima
- Department of Emergency and Critical Care Medicine, Graduate School of MedicineChiba UniversityChibaJapan
| | - Kazumoto Shibuya
- Department of Neurology, Graduate School of MedicineChiba UniversityChibaJapan
| | - Takeshi Inagaki
- Division of Rehabilitation MedicineChiba University HospitalChibaJapan
| | - Astushi Murata
- Division of Rehabilitation MedicineChiba University HospitalChibaJapan
| | - Satoshi Kuwabara
- Department of Neurology, Graduate School of MedicineChiba UniversityChibaJapan
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5
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Akiyama Y, Inagaki T, Morioka S, Kusano E, Ohmagari N. Exacerbations of Idiopathic Systemic Capillary Leak Syndrome following BNT162b2 mRNA COVID-19 Vaccine (Pfizer-BioNTech). Intern Med 2023. [PMID: 37081683 PMCID: PMC10372265 DOI: 10.2169/internalmedicine.1682-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
A Japanese man experienced three episodes of hypovolemic shock and was diagnosed with systemic capillary leak syndrome (SCLS). He developed SCLS exacerbation 2 days after receiving a second dose of the Pfizer-BioNTech BNT162b2 mRNA COVID-19 vaccine, 1 year after the third episode. After fluid therapy and albumin administration, we initiated terbutaline and theophylline prophylaxis for SCLS. A literature review revealed that SCLS attacks often occur 1-2 days after the second COVID-19 vaccination. Patients with a history of SCLS should avoid COVID-19 vaccination and be carefully monitored for 1-2 days if they receive the vaccine.
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Affiliation(s)
- Yutaro Akiyama
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Japan
| | - Takeshi Inagaki
- Department of General Medicine, National Center for Global Health and Medicine, Japan
| | - Shinichiro Morioka
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Japan
| | - Eiji Kusano
- Department of Diabetes, Metabolism and Kidney Disease, Edogawa Hospital, Japan
| | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Japan
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Lin C, Ahn JK, Choi JM, Farrington MS, Gonzalez M, Grethen N, Hsiung YB, Inagaki T, Kamiji I, Kim EJ, Kim JL, Kim HM, Kawata K, Kitagawa A, Komatsubara TK, Kotera K, Lee SK, Lee JW, Lim GY, Luo Y, Matsumura T, Nakagiri K, Nanjo H, Nomura T, Ono K, Redeker JC, Sato T, Sasse V, Shibata T, Shimizu N, Shinkawa T, Shinohara S, Shiomi K, Shiraishi R, Suzuki S, Tajima Y, Tung YC, Wah YW, Watanabe H, Wu T, Yamanaka T, Yoshida HY. Search for the Pair Production of Dark Particles X with K_{L}^{0}→XX, X→γγ. Phys Rev Lett 2023; 130:111801. [PMID: 37001070 DOI: 10.1103/physrevlett.130.111801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 02/08/2023] [Indexed: 06/19/2023]
Abstract
We present the first search for the pair production of dark particles X via K_{L}^{0}→XX with X decaying into two photons using the data collected by the KOTO experiment. No signal was observed in the mass range of 40-110 MeV/c^{2} and 210-240 MeV/c^{2}. This sets upper limits on the branching fractions as B(K_{L}^{0}→XX)<(1-4)×10^{-7} and B(K_{L}^{0}→XX)<(1-2)×10^{-6} at the 90% confidence level for the two mass regions, respectively.
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Affiliation(s)
- C Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - J M Choi
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - M S Farrington
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - M Gonzalez
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Grethen
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - E J Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - H M Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - K Kawata
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - A Kitagawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S K Lee
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J W Lee
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Ono
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - J C Redeker
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - V Sasse
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Shibata
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - R Shiraishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - Y-C Tung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Wu
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
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7
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Imamura S, Inagaki T, Abe M, Terada J, Kawasaki T, Nagashima K, Tatsumi K, Suzuki T. Impaired Dynamic Response of Oxygen Saturation During the 6-min Walk Test Is Associated With Mortality in Chronic Fibrosing Interstitial Pneumonia. Respir Care 2023; 68:356-365. [PMID: 36828581 PMCID: PMC10027139 DOI: 10.4187/respcare.10231] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
BACKGROUND The 6-min walk test (6MWT) is a common assessment of exercise-induced hypoxemia and exercise capacity used in patients with chronic fibrosing interstitial pneumonia (CFIP). However, whether the dynamic changes in SpO2 and heart rate during the 6MWT are associated with mortality in patients with CFIP has been undefined. METHODS This retrospective study enrolled 63 subjects with mild to severe CFIP who underwent the 6MWT. Subjects with CFIP were divided into 2 groups according to disease severity: mild, diffusing capacity of the lungs for carbon monoxide percentage predicted (%DLCO) > 55% and %FVC > 75%; and severe, %DLCO ≤ 55% and/or %FVC ≤ 75%. This study aimed to evaluate dynamic changes in the 6MWT including 6-min walk distance, change in SpO2 (ΔSpO2 ), SpO2 reduction time, SpO2 recovery time, change in heart rate (Δ heart rate), heart rate acceleration time, slope of heart rate acceleration, heart rate recovery at 1 min of rest after the 6MWT (HR-recovery), and dyspnea on exertion that are reflected by static pulmonary function and are related to exacerbation of CFIP and mortality. RESULTS Compared with subjects with mild CFIP, subjects with severe CFIP had significantly larger ΔSpO2 and longer SpO 2 reduction time and recovery time. The slope of heart rate, heart rate immediately after the 6MWT, and HR-recovery were lower in subjects with severe CFIP than in those with mild CFIP. In multiple regression analysis, percent vital capacity was significantly associated with SpO2 reduction time, and %DLCO was significantly associated with ΔSpO2 and SpO2 recovery time. Subjects with ΔSpO2 of > 10% and SpO2 recovery time of > 79 s had a significantly higher risk for exacerbation and mortality. CONCLUSIONS Dynamic changes in SpO2 and heart rate during the 6MWT were associated with risk for exacerbation and mortality in subjects with CFIP. Impaired dynamic response of SpO2 could reflect likelihood of exacerbation and increased mortality in CFIP.
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Affiliation(s)
- Soh Imamura
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan; and Division of Rehabilitation, Tokyo Women's Medical University Yachiyo Medical Center, Chiba, Japan
| | - Takeshi Inagaki
- Division of Rehabilitation, Chiba University Hospital, Chiba, Japan.
| | - Mitsuhiro Abe
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Jiro Terada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takeshi Kawasaki
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kengo Nagashima
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, Tokyo, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takuji Suzuki
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
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8
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Sakuma M, Inagaki T, Arakawa R, Kato N, Okafuji T. Hereditary Hemorrhagic Telangiectasia Presenting with Asymptomatic Liver Lesions and a History of Early-onset Myocardial Infarction and Multiple Intracranial Aneurysms. Intern Med 2023; 62:553-557. [PMID: 35908967 PMCID: PMC10017236 DOI: 10.2169/internalmedicine.9259-22] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Hereditary hemorrhagic telangiectasia (HHT) is a genetic disorder of the vasculature, characterized by epistaxis, telangiectasia and arteriovenous malformations in multiple organs. We herein report a 49-year-old woman with a history of early-onset myocardial infarction and intracranial aneurysms, in whom we incidentally detected multiple hepatic vascular abnormalities. We subsequently diagnosed her with HHT after discovering gastrointestinal telangiectases and a pulmonary arteriovenous fistula along with a history of recurrent epistaxis. Whole-exome sequencing revealed a novel pathogenic variant in SMAD4, a relatively rare causative gene for HHT. This case highlights the fact that HHT patients may present with asymptomatic liver lesions.
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Affiliation(s)
- Maki Sakuma
- Department of General Medicine, Center Hospital of the National Center for Global Health and Medicine, Japan
| | - Takeshi Inagaki
- Department of General Medicine, Center Hospital of the National Center for Global Health and Medicine, Japan
| | - Reiko Arakawa
- Department of Genomic Medicine, Center Hospital of the National Center for Global Health and Medicine, Japan
- Medical Genomics Center, National Center for Global Health and Medicine, Japan
| | - Norihiro Kato
- Department of Genomic Medicine, Center Hospital of the National Center for Global Health and Medicine, Japan
- Medical Genomics Center, National Center for Global Health and Medicine, Japan
| | - Takashi Okafuji
- Department of Radiology, Center Hospital of the National Center for Global Health and Medicine, Japan
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9
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Oda R, Inagaki T, Ishikane M, Hotta M, Shimomura A, Sato M, Nakamoto T, Akiyama Y, Yamamoto K, Minamimoto R, Kaneko H, Ohmagari N. Case of adult large vessel vasculitis after SARS-CoV-2 infection. Ann Rheum Dis 2023; 82:e25. [PMID: 32788398 DOI: 10.1136/annrheumdis-2020-218440] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 06/27/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Ryohei Oda
- General Medicine, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Takeshi Inagaki
- General Medicine, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Masahiro Ishikane
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Masatoshi Hotta
- Radiology, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Akira Shimomura
- General Medicine, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Mitsuhiro Sato
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Takato Nakamoto
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Yutaro Akiyama
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Kei Yamamoto
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Ryogo Minamimoto
- Radiology, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Hiroshi Kaneko
- Department of Rheumatic Diseases, National Center for Global Health and Medicine, Shinjuku-ku, Japan
| | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Shinjuku-ku, Japan
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10
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Hara H, Masuishi T, Ando T, Kawakami T, Yamamoto Y, Sugimoto N, Shiraishi K, Esaki T, Negoro Y, Tsuzuki T, Sawai H, Nakamura M, Inagaki T, Shinohara Y, Kawakami H, Kawakami K, Katsuya H, Maeda O, Fujita Y, Yoshimura K, Nakajima T, Muro K. P-99 A multicenter phase II study of mFOLFOX6 in advanced gastric cancer patients with severe peritoneal metastases: WJOG10517G. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.189] [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: 11/01/2022] Open
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11
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Masubuchi Y, Ma J, Suzuki T, Kojima I, Inagaki T, Shibata H. T1R3 homomeric sweet taste receptor negatively regulates insulin-induced glucose transport through Gαs-mediated microtubules disassembly in 3T3-L1 adipocytes. Endocr J 2022; 69:487-493. [PMID: 34803124 DOI: 10.1507/endocrj.ej21-0661] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
T1R3 is a class C G protein-coupled receptor family member that forms heterodimeric umami and sweet taste receptors with T1R1 and T1R2, respectively, in the taste cells of taste buds. T1R3 is expressed in 3T3-L1 cells in homomeric form and negatively regulates adipogenesis in a Gαs-dependent but cAMP-independent manner. Although T1R3 expression is markedly upregulated during adipogenesis, its physiological role in mature adipocytes remains obscure. Here, we show that stimulation of T1R3 with sucralose or saccharin induces microtubule disassembly in differentiated 3T3-L1 adipocytes. The effect was reproduced by treatment with cholera toxin or isoproterenol but not with forskolin. Treatment with sucralose or saccharin for 3 h inhibited insulin-stimulated glucose uptake by 32% and 45% in differentiated adipocytes, respectively, similar to the inhibitory effect of nocodazole (by 33%). Isoproterenol treatment inhibited insulin-stimulated glucose transport by 26%, whereas sucralose did not affect the intrinsic activity of the glucose transporter, indicating that it inhibited insulin-induced GLUT4 translocation to the plasma membrane. Immunostaining analysis showed that insulin-stimulated GLUT4 accumulation on the plasma membrane was abrogated in sucralose-treated cells, in association with depolymerization of microtubules. Sucralose-mediated inhibition of GLUT4 translocation was reversed by the overexpression of dominant-negative Gαs (Gαs-G226A) or knockdown of Gαs. Additionally, membrane fractionation analysis showed that sucralose treatment reduced GLUT4 levels in the plasma membrane fraction from insulin-stimulated adipocytes. We have identified a novel non-gustatory role for homomeric T1R3 in adipocytes, and activation of the T1R3 receptor negatively regulates insulin action of glucose transport via Gαs-dependent microtubule disassembly.
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Affiliation(s)
- Yosuke Masubuchi
- Department of Molecular and Cellular Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
| | - Jinhui Ma
- Department of Molecular and Cellular Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
| | - Tomohiro Suzuki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
| | - Itaru Kojima
- Department of Molecular and Cellular Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
| | - Hiroshi Shibata
- Department of Molecular and Cellular Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi 371-8512, Japan
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12
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Katsumura S, Siddiqui N, Goldsmith MR, Cheah JH, Fujikawa T, Minegishi G, Yamagata A, Yabuki Y, Kobayashi K, Shirouzu M, Inagaki T, Huang THM, Musi N, Topisirovic I, Larsson O, Morita M. Deadenylase-dependent mRNA decay of GDF15 and FGF21 orchestrates food intake and energy expenditure. Cell Metab 2022; 34:564-580.e8. [PMID: 35385705 PMCID: PMC9386786 DOI: 10.1016/j.cmet.2022.03.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 10/26/2021] [Accepted: 03/14/2022] [Indexed: 12/11/2022]
Abstract
Hepatokines, secretory proteins from the liver, mediate inter-organ communication to maintain a metabolic balance between food intake and energy expenditure. However, molecular mechanisms by which hepatokine levels are rapidly adjusted following stimuli are largely unknown. Here, we unravel how CNOT6L deadenylase switches off hepatokine expression after responding to stimuli (e.g., exercise and food) to orchestrate energy intake and expenditure. Mechanistically, CNOT6L inhibition stabilizes hepatic Gdf15 and Fgf21 mRNAs, increasing corresponding serum protein levels. The resulting upregulation of GDF15 stimulates the hindbrain to suppress appetite, while increased FGF21 affects the liver and adipose tissues to induce energy expenditure and lipid consumption. Despite the potential of hepatokines to treat metabolic disorders, their administration therapies have been challenging. Using small-molecule screening, we identified a CNOT6L inhibitor enhancing GDF15 and FGF21 hepatokine levels, which dramatically improves diet-induced metabolic syndrome. Our discovery, therefore, lays the foundation for an unprecedented strategy to treat metabolic syndrome.
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Affiliation(s)
- Sakie Katsumura
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Nadeem Siddiqui
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada
| | | | - Jaime H Cheah
- High Throughput Sciences Facility, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Teppei Fujikawa
- Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Genki Minegishi
- Laboratory of DDS Design and Drug Disposition, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Atsushi Yamagata
- RIKEN Center for Biosystems Dynamics Research, Yokohama, Kanagawa 230-0045, Japan
| | - Yukako Yabuki
- RIKEN Center for Biosystems Dynamics Research, Yokohama, Kanagawa 230-0045, Japan
| | - Kaoru Kobayashi
- Department of Biopharmaceutics, Graduate School of Clinical Pharmacy, Meiji Pharmaceutical University, Kiyose-shi, Tokyo 204-8588, Japan
| | - Mikako Shirouzu
- RIKEN Center for Biosystems Dynamics Research, Yokohama, Kanagawa 230-0045, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi-shi, Gunma 371-8512, Japan
| | - Tim H-M Huang
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Nicolas Musi
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA; San Antonio Geriatric Research, Education, and Clinical Center, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
| | - Ivan Topisirovic
- Lady Davis Institute, Sir Mortimer B. Davis Jewish General Hospital, Montreal, QC H3A 1A3, Canada; Gerald Bronfman Department of Oncology, Division of Experimental Medicine and Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada
| | - Ola Larsson
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institute, 171 65 Stockholm, Sweden
| | - Masahiro Morita
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA; Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
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13
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Kawashima A, Kutsuna S, Shimomura A, Sato L, Ando H, Tanikawa T, Nagashima M, Miyoshi-Akiyama T, Inagaki T, Ohmagari N. Streptobacillus notomytis Bacteremia after Exposure to Rat Feces. Emerg Infect Dis 2022; 28:886-888. [PMID: 35318927 PMCID: PMC8962910 DOI: 10.3201/eid2804.204965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
To determine the source of Streptobacillus notomytis bacteremia in a woman in Japan with signs of rat-bite fever, we examined rat feces from her home. After culture and PCR failed to identify the causative organism in the feces, next-generation sequencing detected Streptobacillus spp., illustrating this procedure’s value for identifying causative environmental organisms.
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14
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Ide S, Kurozumi A, Takeshige A, Shimomura A, Watanabe R, Inagaki T. Fasciitis of the lower leg after COVID-19 vaccination. IDCases 2022; 28:e01475. [PMID: 35284230 PMCID: PMC8906020 DOI: 10.1016/j.idcr.2022.e01475] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 11/30/2022] Open
Abstract
The occurrence of fasciitis after COVID-19 vaccination is rare. The BNT162b2 COVID-19 vaccine can cause fasciitis distant to the injection site. The use of steroids is not essential for treatment of vaccine-associated fasciitis.
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Affiliation(s)
- Satoshi Ide
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Atsumasa Kurozumi
- Department of Cardiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Akiko Takeshige
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Akira Shimomura
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Riri Watanabe
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takeshi Inagaki
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
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15
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Fukami K, Inagaki T, Iwashita T, Nakanishi H, Nishimori N, Takano S, Takemura Y, Taniuchi T, Watanabe T, Yamaguchi H, Tanaka H. Iron lamination and interlaminar insulation for high-frequency pulsed magnets. Rev Sci Instrum 2022; 93:023301. [PMID: 35232164 DOI: 10.1063/5.0074226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
In high-frequency pulsed magnets, such as kickers in particle accelerators, it is essential to reduce eddy currents that could be induced in the magnet core during excitation not to distort and attenuate the magnetic field pulse. A novel iron lamination scheme with additional interlaminar insulation is proposed for the magnet core of such pulsed magnets. A laminated steel sheet core is formed by alternately stacking thin steel and insulation sheets. For application to matched kicker magnets for accelerators, test magnets with the new and conventional iron lamination were designed, assembled, and extensively evaluated. The pulsed magnetic field waveforms of two test magnets with the new lamination successfully matched to below 0.1% over the entire pulse duration, which was significantly better than those with the conventional lamination. Among the applications of the developed high-frequency pulsed magnets, beam injection kickers for the coming next generation light sources and future colliders, where suppression of the transient stored-beam oscillation during beam injection is crucial, are considered to be promising.
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Affiliation(s)
- K Fukami
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - T Inagaki
- RIKEN SPring-8 Center, Hyogo 679-5148, Japan
| | - T Iwashita
- National Institutes for Quantum and Radiological Science and Technology, Hyogo 679-5148, Japan
| | - H Nakanishi
- SPring-8 Service Co., Ltd., Hyogo 679-5165, Japan
| | - N Nishimori
- National Institutes for Quantum and Radiological Science and Technology, Hyogo 679-5148, Japan
| | - S Takano
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - Y Takemura
- SPring-8 Service Co., Ltd., Hyogo 679-5165, Japan
| | - T Taniuchi
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - T Watanabe
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - H Yamaguchi
- Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - H Tanaka
- RIKEN SPring-8 Center, Hyogo 679-5148, Japan
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16
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Suzuki T, Hayashi M, Komatsu T, Tanioka A, Nagasawa M, Tanimura-Inagaki K, Rahman MS, Masuda S, Yusa K, Sakai J, Shibata H, Inagaki T. Measurement of the nuclear concentration of α-ketoglutarate during adipocyte differentiation by using a fluorescence resonance energy transfer-based biosensor with nuclear localization signals. Endocr J 2021; 68:1429-1438. [PMID: 34261826 DOI: 10.1507/endocrj.ej21-0255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
α-Ketoglutarate (α-KG) also known as 2-oxoglutarate (2-OG) is an intermediate metabolite in the tricarboxylic acid (TCA) cycle and is also produced by the deamination of glutamate. It is an indispensable cofactor for a series of 2-oxoglutarate-dependent oxygenases including epigenetic modifiers such as ten-eleven translocation DNA demethylases (TETs) and JmjC domain-containing histone demethylases (JMJDs). Since these epigenetic enzymes target genomic DNA and histone in the nucleus, the nuclear concentration of α-KG would affect the levels of transcription by modulating the activity of the epigenetic enzymes. Thus, it is of great interest to measure the nuclear concentration of α-KG to elucidate the regulatory mechanism of these enzymes. Here, we report a novel fluorescence resonance energy transfer (FRET)-based biosensor with multiple nuclear localization signals (NLSs) to measure the nuclear concentration of α-KG. The probe contains the α-KG-binding GAF domain of NifA protein from Azotobacter vinelandii fused with EYFP and ECFP. Treatment of 3T3-L1 preadipocytes expressing this probe with either dimethyl-2-oxoglutarate (dimethyl-2-OG), a cell-permeable 2-OG derivative, or citrate elicited time- and dose-dependent changes in the FRET ratio, proving that this probe functions as an α-KG sensor. Measurement of the nuclear α-KG levels in the 3T3-L1 cells stably expressing the probe during adipocyte differentiation revealed that the nuclear concentration of α-KG increased in the early stage of differentiation and remained high thereafter. Thus, this nuclear-localized α-KG probe is a powerful tool for real-time monitoring of α-KG concentrations with subcellular resolution in living cells and is useful for elucidating the regulatory mechanisms of epigenetic enzymes.
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Affiliation(s)
- Tomohiro Suzuki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Mayuko Hayashi
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Tetsuro Komatsu
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Akiko Tanioka
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Masahiro Nagasawa
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Kyoko Tanimura-Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
- Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, Nippon Medical School, Tokyo 113-8602, Japan
| | - Mohammad Sharifur Rahman
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Shinnosuke Masuda
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Kosuke Yusa
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
- Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
| | - Hiroshi Shibata
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
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17
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Matsumura Y, Ito R, Yajima A, Yamaguchi R, Tanaka T, Kawamura T, Magoori K, Abe Y, Uchida A, Yoneshiro T, Hirakawa H, Zhang J, Arai M, Yang C, Yang G, Takahashi H, Fujihashi H, Nakaki R, Yamamoto S, Ota S, Tsutsumi S, Inoue SI, Kimura H, Wada Y, Kodama T, Inagaki T, Osborne TF, Aburatani H, Node K, Sakai J. Spatiotemporal dynamics of SETD5-containing NCoR-HDAC3 complex determines enhancer activation for adipogenesis. Nat Commun 2021; 12:7045. [PMID: 34857762 PMCID: PMC8639990 DOI: 10.1038/s41467-021-27321-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 11/09/2021] [Indexed: 01/03/2023] Open
Abstract
Enhancer activation is essential for cell-type specific gene expression during cellular differentiation, however, how enhancers transition from a hypoacetylated "primed" state to a hyperacetylated-active state is incompletely understood. Here, we show SET domain-containing 5 (SETD5) forms a complex with NCoR-HDAC3 co-repressor that prevents histone acetylation of enhancers for two master adipogenic regulatory genes Cebpa and Pparg early during adipogenesis. The loss of SETD5 from the complex is followed by enhancer hyperacetylation. SETD5 protein levels were transiently increased and rapidly degraded prior to enhancer activation providing a mechanism for the loss of SETD5 during the transition. We show that induction of the CDC20 co-activator of the ubiquitin ligase leads to APC/C mediated degradation of SETD5 during the transition and this operates as a molecular switch that facilitates adipogenesis.
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Affiliation(s)
- Yoshihiro Matsumura
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan.
| | - Ryo Ito
- grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ayumu Yajima
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan ,grid.412339.e0000 0001 1172 4459Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Rei Yamaguchi
- grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toshiya Tanaka
- grid.26999.3d0000 0001 2151 536XDepartment of Nuclear Receptor Medicine, Laboratories for Systems Biology and Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Takeshi Kawamura
- grid.26999.3d0000 0001 2151 536XIsotope Science Center, The University of Tokyo, Tokyo, Japan
| | - Kenta Magoori
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Yohei Abe
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Aoi Uchida
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Takeshi Yoneshiro
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Hirakawa
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan ,grid.265073.50000 0001 1014 9130Department of Physiology and Cell Biology, Tokyo Medical and Dental University (TMDU), Graduate School, Tokyo, Japan
| | - Ji Zhang
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan ,grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Makoto Arai
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan ,grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Chaoran Yang
- grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ge Yang
- grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroki Takahashi
- grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hitomi Fujihashi
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Ryo Nakaki
- grid.26999.3d0000 0001 2151 536XGenome Science Division, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan ,Rhelixa Inc, Tokyo, Japan
| | - Shogo Yamamoto
- grid.26999.3d0000 0001 2151 536XGenome Science Division, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Satoshi Ota
- grid.26999.3d0000 0001 2151 536XGenome Science Division, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Shuichi Tsutsumi
- grid.26999.3d0000 0001 2151 536XGenome Science Division, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Shin-ichi Inoue
- grid.69566.3a0000 0001 2248 6943Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Kimura
- grid.32197.3e0000 0001 2179 2105Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan
| | - Youichiro Wada
- grid.26999.3d0000 0001 2151 536XIsotope Science Center, The University of Tokyo, Tokyo, Japan
| | - Tatsuhiko Kodama
- grid.26999.3d0000 0001 2151 536XDepartment of Nuclear Receptor Medicine, Laboratories for Systems Biology and Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Takeshi Inagaki
- grid.26999.3d0000 0001 2151 536XDivision of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan ,grid.256642.10000 0000 9269 4097Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Timothy F. Osborne
- grid.21107.350000 0001 2171 9311Institute for Fundamental Biomedical Research, Johns Hopkins All Children’s Hospital, and Medicine in the Division of Endocrinology, Diabetes and Metabolism of the Johns Hopkins University School of Medicine, Petersburg, FL USA
| | - Hiroyuki Aburatani
- grid.26999.3d0000 0001 2151 536XGenome Science Division, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Koichi Node
- grid.412339.e0000 0001 1172 4459Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan. .,Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan.
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18
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Yoshida N, Yamashita T, Osone T, Hosooka T, Shinohara M, Kitahama S, Sasaki K, Sasaki D, Yoneshiro T, Suzuki T, Emoto T, Saito Y, Ozawa G, Hirota Y, Kitaura Y, Shimomura Y, Okamatsu-Ogura Y, Saito M, Kondo A, Kajimura S, Inagaki T, Ogawa W, Yamada T, Hirata KI. Bacteroides spp. promotes branched-chain amino acid catabolism in brown fat and inhibits obesity. iScience 2021; 24:103342. [PMID: 34805797 PMCID: PMC8586802 DOI: 10.1016/j.isci.2021.103342] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 09/17/2021] [Accepted: 10/21/2021] [Indexed: 12/05/2022] Open
Abstract
The gut microbiome has emerged as a key regulator of obesity; however, its role in brown adipose tissue (BAT) metabolism and association with obesity remain to be elucidated. We found that the levels of circulating branched-chain amino acids (BCAA) and their cognate α-ketoacids (BCKA) were significantly correlated with the body weight in humans and mice and that BCAA catabolic defects in BAT were associated with obesity in diet-induced obesity (DIO) mice. Pharmacological systemic enhancement of BCAA catabolic activity reduced plasma BCAA and BCKA levels and protected against obesity; these effects were reduced in BATectomized mice. DIO mice gavaged with Bacteroides dorei and Bacteroides vulgatus exhibited improved BAT BCAA catabolism and attenuated body weight gain, which were not observed in BATectomized DIO mice. Our data have highlighted a possible link between the gut microbiota and BAT BCAA catabolism and suggest that Bacteroides probiotics could be used for treating obesity. Gut microbiota regulated BAT BCAA catabolism Bacteroides promoted BAT BCAA catabolism and inhibited obesity Bacteroides suppressed BAT inflammation that contributed to BAT BCAA catabolic defect
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Affiliation(s)
- Naofumi Yoshida
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 6500017, Japan
| | - Tomoya Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 6500017, Japan.,AMED-PRIME, Japan Agency for Medical Research and Development, 1-8-1 Inohana, Chuo-ku, Tokyo 1008152, Japan
| | - Tatsunori Osone
- School and Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Tokyo 1528550, Japan
| | - Tetsuya Hosooka
- Laboratory of Nutritional Physiology, School of Food and Nutritional Sciences/Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka 4228526, Japan
| | - Masakazu Shinohara
- Division of Epidemiology, Kobe University Graduate School of Medicine, Kobe 6500017, Japan.,The Integrated Center for Mass Spectrometry, Graduate School of Medicine, Kobe University, Kobe 6500017, Japan
| | - Seiichi Kitahama
- Department of Metabolic and Bariatric Surgery, Center for Obesity, Diabetes and Endocrinology, Chibune General Hospital, Osaka 5550034, Japan
| | - Kengo Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe 6578501, Japan.,Bio Palette Co., Ltd., Kobe 6500047, Japan
| | - Daisuke Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe 6578501, Japan
| | - Takeshi Yoneshiro
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 1538904, Japan
| | - Tomohiro Suzuki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 3718512, Japan
| | - Takuo Emoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 6500017, Japan
| | - Yoshihiro Saito
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 6500017, Japan
| | - Genki Ozawa
- TechnoSuruga Laboratory Co., Ltd., Shizuoka 4240065, Japan
| | - Yushi Hirota
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 6500017, Japan
| | - Yasuyuki Kitaura
- Laboratory of Nutritional Biochemistry, Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 4648601, Japan
| | - Yoshiharu Shimomura
- Department of Food and Nutritional Sciences, College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi 4878501, Japan
| | | | - Masayuki Saito
- Faculty of Veterinary Medicine, Hokkaido University, Sapporo 0600818, Japan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe 6578501, Japan
| | - Shingo Kajimura
- Division of Endocrinology, Diabetes & Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 3718512, Japan
| | - Wataru Ogawa
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 6500017, Japan
| | - Takuji Yamada
- School and Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Tokyo 1528550, Japan
| | - Ken-Ichi Hirata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 6500017, Japan
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19
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Kawashima A, Kutsuna S, Shimomura A, Suzuki T, Nakamoto T, Ando H, Nagashima M, Inagaki T, Ohmagari N. Catheter-related bloodstream infection caused by Tsukamurella ocularis: A case report. J Infect Chemother 2021; 28:434-436. [PMID: 34802889 DOI: 10.1016/j.jiac.2021.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/18/2021] [Accepted: 11/01/2021] [Indexed: 10/19/2022]
Abstract
Tsukamurella spp. causes mainly bacteremia and central venous catheter-related bloodstream infections. To the best of our knowledge, there is no documented evidence that Tsukamurella ocularis causes catheter-related bloodstream infections like other species of Tsukamurella. We present a novel case of T. ocularis bacteremia in a 69-year-old woman with malignant cancer, wherein the patient was successfully treated with a peripherally inserted central venous catheter. We administered combination antimicrobial therapy to the patient, which was terminated only after confirming the absence of infection. We identified T. ocularis by sequencing three housekeeping genes that could not be identified using conventional mass spectrometry and 16S rRNA gene analysis.
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Affiliation(s)
- Akira Kawashima
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan; Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Satoshi Kutsuna
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan; Department of Infection Control, Graduate School of Medicine, Osaka University, Japan.
| | - Akira Shimomura
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tetsuya Suzuki
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takato Nakamoto
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Honami Ando
- Clinical Laboratory Department, National Center for Global Health and Medicine, Tokyo, Japan
| | - Maki Nagashima
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takeshi Inagaki
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
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20
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Zhang J, Matsumura Y, Kano Y, Yoshida A, Kawamura T, Hirakawa H, Inagaki T, Tanaka T, Kimura H, Yanagi S, Fukami K, Doi T, Osborne TF, Kodama T, Aburatani H, Sakai J. Ubiquitination-dependent and -independent repression of target genes by SETDB1 reveal a context-dependent role for its methyltransferase activity during adipogenesis. Genes Cells 2021; 26:513-529. [PMID: 33971063 DOI: 10.1111/gtc.12868] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/28/2021] [Accepted: 04/29/2021] [Indexed: 12/12/2022]
Abstract
The lysine methyltransferase SETDB1, an enzyme responsible for methylation of histone H3 at lysine 9, plays a key role in H3K9 tri-methylation-dependent silencing of endogenous retroviruses and developmental genes. Recent studies have shown that ubiquitination of human SETDB1 complements its catalytic activity and the silencing of endogenous retroviruses in human embryonic stem cells. However, it is not known whether SETDB1 ubiquitination is essential for its other major role in epigenetic silencing of developmental gene programs. We previously showed that SETDB1 contributes to the formation of H3K4/H3K9me3 bivalent chromatin domains that keep adipogenic Cebpa and Pparg genes in a poised state for activation and restricts the differentiation potential of pre-adipocytes. Here, we show that ubiquitin-resistant K885A mutant of SETDB1 represses adipogenic genes and inhibits pre-adipocyte differentiation similar to wild-type SETDB1. We show this was due to a compensation mechanism for H3K9me3 chromatin modifications on the Cebpa locus by other H3K9 methyltransferases Suv39H1 and Suv39H2. In contrast, the K885A mutant did not repress other SETDB1 target genes such as Tril and Gas6 suggesting SETDB1 represses its target genes by two mechanisms; one that requires its ubiquitination and another that still requires SETDB1 but not its enzyme activity.
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Affiliation(s)
- Ji Zhang
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan.,Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshihiro Matsumura
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Yuka Kano
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan.,Laboratory of Molecular Biochemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Ayano Yoshida
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan.,Laboratory of Genome and Biosignal, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Takeshi Kawamura
- Laboratory of Systems Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan.,Proteomics Laboratory, Isotope Science Center, University of Tokyo, Tokyo, Japan
| | - Hiroyuki Hirakawa
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan.,Department of Physiology and Cell Biology, Tokyo Medical and Dental University (TMDU), Graduate School, Tokyo, Japan
| | - Takeshi Inagaki
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Toshiya Tanaka
- Laboratory of Systems Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Hiroshi Kimura
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan
| | - Shigeru Yanagi
- Laboratory of Molecular Biochemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Kiyoko Fukami
- Laboratory of Genome and Biosignal, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Takefumi Doi
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Timothy F Osborne
- Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, and Medicine in the Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, St. Petersburg, FL, USA
| | - Tatsuhiko Kodama
- Laboratory of Systems Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Hiroyuki Aburatani
- Genome Science Division, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan.,Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
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21
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Ahn JK, Beckford B, Campbell M, Chen SH, Comfort J, Dona K, Farrington MS, Hanai K, Hara N, Haraguchi H, Hsiung YB, Hutcheson M, Inagaki T, Isoe M, Kamiji I, Kato T, Kim EJ, Kim JL, Kim HM, Komatsubara TK, Kotera K, Lee SK, Lee JW, Lim GY, Lin QS, Lin C, Luo Y, Mari T, Masuda T, Matsumura T, Mcfarland D, McNeal N, Miyazaki K, Murayama R, Nakagiri K, Nanjo H, Nishimiya H, Noichi Y, Nomura T, Nunes T, Ohsugi M, Okuno H, Redeker JC, Sanchez J, Sasaki M, Sasao N, Sato T, Sato K, Sato Y, Shimizu N, Shimogawa T, Shinkawa T, Shinohara S, Shiomi K, Shiraishi R, Su S, Sugiyama Y, Suzuki S, Tajima Y, Taylor M, Tecchio M, Togawa M, Toyoda T, Tung YC, Vuong QH, Wah YW, Watanabe H, Yamanaka T, Yoshida HY, Zaidenberg L. Study of the K_{L}→π^{0}νν[over ¯] Decay at the J-PARC KOTO Experiment. Phys Rev Lett 2021; 126:121801. [PMID: 33834796 DOI: 10.1103/physrevlett.126.121801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
The rare decay K_{L}→π^{0}νν[over ¯] was studied with the dataset taken at the J-PARC KOTO experiment in 2016, 2017, and 2018. With a single event sensitivity of (7.20±0.05_{stat}±0.66_{syst})×10^{-10}, three candidate events were observed in the signal region. After unveiling them, contaminations from K^{±} and scattered K_{L} decays were studied, and the total number of background events was estimated to be 1.22±0.26. We conclude that the number of observed events is statistically consistent with the background expectation. For this dataset, we set an upper limit of 4.9×10^{-9} on the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level.
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Affiliation(s)
- J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - B Beckford
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Campbell
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S H Chen
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - J Comfort
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - K Dona
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M S Farrington
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - K Hanai
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Hara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Haraguchi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - M Hutcheson
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Isoe
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Kato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - E J Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - H M Kim
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S K Lee
- Division of Science Education, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - J W Lee
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - Q S Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - C Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - T Mari
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Masuda
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - D Mcfarland
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - N McNeal
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Miyazaki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Murayama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nishimiya
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Noichi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Nunes
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Ohsugi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Okuno
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - J C Redeker
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J Sanchez
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Sasaki
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - N Sasao
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - K Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shimogawa
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - R Shiraishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Su
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Y Sugiyama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - M Taylor
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Tecchio
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Togawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Toyoda
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y-C Tung
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Q H Vuong
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - L Zaidenberg
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
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22
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Inagaki T, Fujiwara K, Shinohara Y, Azuma M, Yamazaki R, Mashima K, Sakamoto A, Yashiro T, Ohno N. Perivascular macrophages produce type I collagen around cerebral small vessels under prolonged hypertension in rats. Histochem Cell Biol 2021; 155:503-512. [PMID: 33398434 DOI: 10.1007/s00418-020-01948-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2020] [Indexed: 12/15/2022]
Abstract
Hypertension leads to structural remodeling of cerebral blood vessels, which has been implicated in the pathophysiology of cerebrovascular diseases. The remodeling and progression of arteriolosclerosis under hypertension involve fibrosis along with the production of type I collagen around cerebral arterioles. However, the source and regulatory mechanisms of this collagen production remain elusive. In this study, we examined if perivascular macrophages (PVMs) are involved in collagen production around cerebral small vessels in hypertensive SHRSP/Izm rats. Immunoreactivity for type I collagen around cerebral small vessels in 12-week-old hypertensive rats tended to higher than those in 4-week-old hypertensive and 12-week-old control rats. In ultrastructural analyses using transmission electron microscopy, the substantial deposition of collagen fibers could be observed in the intercellular spaces around PVMs near the arterioles of rats with prolonged hypertension. In situ hybridization analyses revealed that cells positive for mRNA of Col1a1, which comprises type I collagen, were observed near cerebral small vessels. The Col1a1-positive cells around cerebral small vessels were colocalized with immunoreactivity for CD206, a marker for PVMs, but not with those for glial fibrillary acidic protein or desmin, markers for other perivascular cells such as astrocytes and vascular smooth muscle cells. These results demonstrated that enhanced production of type I collagen is observed around cerebral small vessels in rats with prolonged hypertension and Col1a1 is expressed by PVMs, and support the concept that PVMs are involved in collagen production and vascular fibrosis under hypertensive conditions.
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Affiliation(s)
- Takeshi Inagaki
- Department of Anatomy, Division of Forensic Medicine, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
| | - Ken Fujiwara
- Department of Anatomy, Division of Histology and Cell Biology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.,Department of Biological Sciences, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsuka, Kanagawa, 259-1293, Japan
| | - Yoshiaki Shinohara
- Department of Anatomy, Division of Histology and Cell Biology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Morio Azuma
- Department of Pharmacology, Division of Molecular Pharmacology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Reiji Yamazaki
- Department of Anatomy, Division of Histology and Cell Biology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Kiyomi Mashima
- Department of Medicine, Division of Hematology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Atsushi Sakamoto
- Department of Anatomy, Division of Forensic Medicine, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Takashi Yashiro
- Department of Anatomy, Division of Histology and Cell Biology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan
| | - Nobuhiko Ohno
- Department of Anatomy, Division of Histology and Cell Biology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
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23
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Kuroiwa R, Tateishi Y, Oshima T, Inagaki T, Furukawa S, Takemura R, Kawasaki Y, Murata A. Mechanical Insufflation-exsufflation for the Prevention of Ventilator-associated Pneumonia in Intensive Care Units: A Retrospective Cohort Study. Indian J Crit Care Med 2021; 25:62-66. [PMID: 33603304 PMCID: PMC7874278 DOI: 10.5005/jp-journals-10071-23508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Aim Ventilator-associated pneumonia (VAP) is the most common intensive care unit (ICU)-acquired infection. The current study aimed to assess the efficacy of mechanical insufflation-exsufflation (MI-E) in preventing VAP in critically ill patients. Materials and methods This retrospective cohort study was conducted at the ICU of Chiba University Hospital between January 2014 and September 2017. The inclusion criteria were patients who required invasive mechanical ventilation ≥48 hours and those who underwent rehabilitation, including chest physical therapy (CPT). In 2015, the study institution started the use of MI-E in patients with impaired cough reflex. From January to December 2014, patients undergoing CPT were classified under the historical control group, and those who received treatment using MI-E from January 2015 to September 2017 were included in the intervention group. The patients received treatment using MI-E via the endotracheal or tracheostomy tube, with insufflation-exsufflation pressure of 15-40 cm H2O. The treatment frequency was one to three sessions daily, and a physical therapist who is experienced in using MI-E facilitated the treatment. Results From January 2015 to September 2017, 11 patients received treatment using MI-E. Of the 169 patients screened in 2014, 19 underwent CPT. The incidence of VAP was significantly different between the CPT and MI-E groups (84.2% [16/19] vs 26.4% [3/11], p = 0.011). After adjusting for covariates, a multivariate logistic regression analysis was performed, and results showed that the covariates were not associated with the incidence of VAP. Conclusion This retrospective cohort study suggests that the use of MI-E in critically ill patients is independently associated with a reduced incidence of VAP. Clinical significance Assessing the efficacy of MI-E to prevent VAP. How to cite this article Kuroiwa R, Tateishi Y, Oshima T, Inagaki T, Furukawa S, Takemura R, et al. Mechanical Insufflation-exsufflation for the Prevention of Ventilator-associated Pneumonia in Intensive Care Units: A Retrospective Cohort Study. Indian J Crit Care Med 2021;25(1):62-66.
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Affiliation(s)
- Ryota Kuroiwa
- Division of Rehabilitation Medicine, Chiba University Hospital, Chiba, Japan
| | - Yoshihisa Tateishi
- Department of Emergency and Critical Care Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Taku Oshima
- Department of Emergency and Critical Care Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takeshi Inagaki
- Division of Rehabilitation Medicine, Chiba University Hospital, Chiba, Japan
| | - Seiichiro Furukawa
- Division of Rehabilitation Medicine, Chiba University Hospital, Chiba, Japan
| | - Ryo Takemura
- Department of Biostatistics Unit, Keio University Hospital, Clinical and Translational Research Center, Tokyo, Japan
| | - Yohei Kawasaki
- Department of Biostatistics Section, Chiba University Hospital, Clinical Research Center, Chiba, Japan
| | - Astushi Murata
- Division of Rehabilitation Medicine, Chiba University Hospital, Chiba, Japan
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24
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Tsuzuki S, Ishikane M, Matsunaga N, Morioka S, Yu J, Inagaki T, Yamamoto M, Ohmagari N. Interim 2019/2020 Influenza Vaccine Effectiveness in Japan from October 2019 to January 2020. Jpn J Infect Dis 2020; 74:175-179. [PMID: 32999182 DOI: 10.7883/yoken.jjid.2020.177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Herein, we report the interim vaccine effectiveness (VE) of a quadrivalent inactivated influenza vaccine, during the 2019/2020 influenza season, in Japan. We conducted a retrospective observational cohort study of 381 patients aged ≥15 years, who were enrolled with influenza like illnesses and examined via the rapid influenza diagnostic test, at the Ambulatory Care unit of the National Center for Global Health and Medicine in Tokyo, Japan, from the beginning of October 2019 to the end of January 2020. VE was estimated using a test-negative design. VE was calculated as (1 - odds ratio) × 100%, comparing influenza A test positivity between vaccinated and unvaccinated patients. Of the 381 patients initially screened for inclusion, 314 were enrolled in the study. Of these, 105 were vaccinated, 98 were diagnosed with influenza A, and 5 were diagnosed with influenza B. Overall VE against influenza A was 27.6% (95% confidence interval [CI], ‒21.1 to +57.4), and in patients aged ≥65 years, it was 47.3% (95% CI, ‒76.0 to +86.0). This indicates that the influenza vaccination offered continued protection during the 2019/2020 influenza season, but a detailed analysis of more cases with a careful consideration of methodology is necessary to estimate VE more precisely.
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Affiliation(s)
- Shinya Tsuzuki
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Japan.,Faculty of Medicine and Health Sciences, University of Antwerp, Belgium
| | - Masahiro Ishikane
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Japan.,Disease Control and Prevention Center, National Center for Global Health and Medicine, Japan
| | - Nobuaki Matsunaga
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Japan
| | - Shinichiro Morioka
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Japan
| | - Jiefu Yu
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Japan.,Disease Control and Prevention Center, National Center for Global Health and Medicine, Japan
| | - Takeshi Inagaki
- General Internal Medicine, National Center for Global Health and Medicine, Japan.,Department of Emergency Medicine and Critical Care, National Center for Global Health and Medicine, Japan
| | - Makiko Yamamoto
- Department of Emergency Medicine and Critical Care, National Center for Global Health and Medicine, Japan
| | - Norio Ohmagari
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Japan.,Disease Control and Prevention Center, National Center for Global Health and Medicine, Japan
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25
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Takeuchi Y, Fujio K, Inagaki T, Fukata R, Kuroiwa R, Murata A. Age-related changes in standing ability on a foam surface based on the center-of-mass acceleration of each body segment. J Phys Ther Sci 2020; 32:566-569. [PMID: 32982051 PMCID: PMC7509158 DOI: 10.1589/jpts.32.566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/03/2020] [Indexed: 11/24/2022] Open
Abstract
[Purpose] The purpose of this study was to elucidate the age-related changes in the
stability of the quiet standing posture based on the acceleration of the center of mass of
each body segment under deteriorated somatosensory conditions. [Participants and Methods]
The participants in this study were 18 healthy elderly persons and 11 healthy young
adults. A foam surface was placed on the force plate for load-bearing onto the
somatosensory system. The participants maintained a quiet position on the force plate
under two conditions: a firm surface and a foam surface. The accelerations of the head,
thorax, pelvis, and whole body center of mass when quiet standing in two conditions were
measured by a motion capture system. In the statistical analysis, regarding the center of
mass of each body segment, the interactions were examined by performing a two-way analysis
of variance using age and surface condition as factors. [Results] A two-way analysis of
variance detected an interaction between age and surface factors for anteroposterior
acceleration at the center of mass of the head. For other body segments, interactions
between the two factors were not detected. [Conclusion] The results of anteroposterior
acceleration at the center of mass of the head suggest that under conditions of
deteriorated somatosensory function in the lower limbs, minute anteroposterior position
adjustment of the head is an essential characteristic of the standing posture control
mechanism in the elderly.
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Affiliation(s)
- Yahiko Takeuchi
- Department of Rehabilitation, Chiba University Hospital: 1-8-1 Inohana, Chuoku, Chiba 260-8677, Japan
| | - Kimiya Fujio
- Department of Rehabilitation for the Movement Functions, Research Institute of the National Rehabilitation, Center for Persons with Disabilities, Japan
| | - Takeshi Inagaki
- Department of Rehabilitation, Chiba University Hospital: 1-8-1 Inohana, Chuoku, Chiba 260-8677, Japan
| | - Ryo Fukata
- Department of Rehabilitation, Chiba University Hospital: 1-8-1 Inohana, Chuoku, Chiba 260-8677, Japan
| | - Ryota Kuroiwa
- Department of Rehabilitation, Chiba University Hospital: 1-8-1 Inohana, Chuoku, Chiba 260-8677, Japan
| | - Atsushi Murata
- Department of Rehabilitation, Chiba University Hospital: 1-8-1 Inohana, Chuoku, Chiba 260-8677, Japan
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26
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Minamimoto R, Hotta M, Ishikane M, Inagaki T. FDG-PET/CT images of COVID-19: a comprehensive review. Glob Health Med 2020; 2:221-226. [PMID: 33330811 PMCID: PMC7731428 DOI: 10.35772/ghm.2020.01056] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 12/28/2022]
Abstract
Following a lot of reports of coronavirus disease 2019 (COVID-19) CT images, the feature of FDG-PET/ CT imaging of COVID-19 was reported in several articles. Since FDG accumulates in activated inflammatory cells, FDG-PET/CT has huge potential for diagnosing and monitoring of inflammatory disease. However, FDG-PET/CT cannot be routinely used in an emergency setting and is not generally recommended as a first choice for diagnosis of infectious diseases. In this review, we demonstrate FDG-PET/CT imaging features of COVID-19, including our experience and current knowledge, and discuss the value of FDG-PET/CT in terms of estimating the pathologic mechanism.
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Affiliation(s)
- Ryogo Minamimoto
- Division of Nuclear Medicine, Department of Radiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Masatoshi Hotta
- Division of Nuclear Medicine, Department of Radiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Masahiro Ishikane
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takeshi Inagaki
- Department of General Internal Medicine, National Center for Global Health and Medicine, Tokyo, Japan
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27
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Imamura S, Inagaki T, Terada J, Nagashima K, Katsura H, Tatsumi K. Long-term efficacy of pulmonary rehabilitation with home-based or low frequent maintenance programs in patients with chronic obstructive pulmonary disease: a meta-analysis. Ann Palliat Med 2020; 9:2606-2615. [PMID: 32819118 DOI: 10.21037/apm-19-581] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 06/30/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND The short-term efficacy of pulmonary rehabilitation (PR) in patients with chronic obstructive pulmonary disease (COPD) has been established. Although continuous follow-up and sustained exercise training is important to maintain the effects, the long-term efficacy of PR without frequent supervised training remains unclear. The aim of this meta-analysis was to investigate the long-term efficacy of PR with home-based or low frequent maintenance program on exercise capacity and health related quality of life (HRQOL) in patients with COPD. METHODS We identified randomized controlled trials (RCTs) comparing long-term efficacy of PR with home-based or low frequent maintenance and no maintenance program from PubMed and the Cochrane Library. Primary outcomes were exercise capacity [6-minute walking distance (6MWD), incremental shuttle walking test (ISWT)] and HRQOL [St. George's Respiratory Questionnaire (SGRQ)]. Outcomes were combined using a random-effects model. This study is registered with PROSPERO, number CRD42019109718. RESULTS Seven RCTs with a total of 492 patients with COPD met the inclusion criteria. PR with maintenance significantly improved 6MWD [mean difference (MD) 27.00; 95% CI: 1.04-52.96; P=0.01] and ISWT (MD 44.48; 95% CI: 30.70-58.25; P<0.01), however no statistical evidence of improvement in HRQOL (MD -1.32; 95% CI: -7.71 to 5.08, P=0.69) was observed. CONCLUSIONS PR with maintenance programs appears to be more effective than without maintenance for preserving exercise capacity in the long-term in patients with COPD. No long-term efficacy on HRQOL were noted. To maintain the efficacy of PR on exercise capacity and HRQOL over a long duration, it might be necessary to reexamine the contents and frequency of maintenance programs.
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Affiliation(s)
- Soh Imamura
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan; Division of Rehabilitation, Tokyo Women's Medical University Yachiyo Medical Center, Chiba, Japan
| | - Takeshi Inagaki
- Division of Rehabilitation, Chiba University Hospital, Chiba, Japan
| | - Jiro Terada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Kengo Nagashima
- Research Center for Medical and Health Data Science, The Institute of Statistical Mathematics, Tokyo, Japan
| | - Hideki Katsura
- Division of Respiratory Medicine, Tokyo Women's Medical University Yachiyo Medical Center, Chiba, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
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28
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Shiono A, Sasaki H, Sekine R, Abe Y, Matsumura Y, Inagaki T, Tanaka T, Kodama T, Aburatani H, Sakai J, Takagi H. PPARα activation directly upregulates thrombomodulin in the diabetic retina. Sci Rep 2020; 10:10837. [PMID: 32616724 PMCID: PMC7331602 DOI: 10.1038/s41598-020-67579-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 06/08/2020] [Indexed: 12/19/2022] Open
Abstract
Two large clinical studies showed that fenofibrate, a commonly used peroxisome proliferator-activated receptor α (PPARα) agonist, has protective effects against diabetic retinopathy. However, the underlying mechanism has not been clarified. We performed genome-wide analyses of gene expression and PPARα binding sites in vascular endothelial cells treated with the selective PPARα modulator pemafibrate and identified 221 target genes of PPARα including THBD, which encodes thrombomodulin (TM). ChIP-qPCR and luciferase reporter analyses showed that PPARα directly regulated THBD expression via binding to the promoter. In the rat diabetic retina, treatment with pemafibrate inhibited the expression of inflammatory molecules such as VCAM-1 and MCP1, and these effects were attenuated by intravitreal injection of small interfering RNA targeted to THBD. Furthermore, pemafibrate treatment inhibited diabetes-induced vascular leukostasis and leakage through the upregulation of THBD. Our results indicate that PPARα activation inhibits inflammatory and vasopermeable responses in the diabetic retina through the upregulation of TM.
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Affiliation(s)
- Akira Shiono
- Department of Ophthalmology, St. Marianna University of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, Japan
| | - Hiroki Sasaki
- Department of Ophthalmology, St. Marianna University of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, Japan
| | - Reio Sekine
- Department of Ophthalmology, St. Marianna University of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, Japan
| | - Yohei Abe
- Division of Metabolic Medicine, The University of Tokyo, RCAST, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Yoshihiro Matsumura
- Division of Metabolic Medicine, The University of Tokyo, RCAST, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, IMCR, Gunma University, 3-39-15 Showa-cho, Maebashi, Gunma, Japan
| | - Toshiya Tanaka
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Tatsuhiko Kodama
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Hiroyuki Aburatani
- Genome Science Division, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Juro Sakai
- Division of Metabolic Medicine, The University of Tokyo, RCAST, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan.,Molecular Physiology and Metabolism Division, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba, Sendai, Miyagi, Japan
| | - Hitoshi Takagi
- Department of Ophthalmology, St. Marianna University of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, Japan.
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29
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Mashima K, Azuma M, Fujiwara K, Inagaki T, Oh I, Ikeda T, Umino K, Nakano H, Morita K, Sato K, Minakata D, Yamasaki R, Ashizawa M, Yamamoto C, Fujiwara SI, Hatano K, Ohmine K, Muroi K, Ohno N, Kanda Y. Differential Localization and Invasion of Tumor Cells in Mouse Models of Human and Murine Leukemias. Acta Histochem Cytochem 2020; 53:43-53. [PMID: 32624629 PMCID: PMC7322163 DOI: 10.1267/ahc.19035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 04/13/2020] [Indexed: 12/19/2022] Open
Abstract
Leukemias are refractory hematopoietic malignancies, for which the development of new therapeutic agents requires in vivo studies using tumor-bearing mouse models. Although several organs are commonly examined in such studies to evaluate the disease course, the effectiveness of interventions and the localization of tumor cells in the affected organs are still unclear. In this study, we histologically examined the distribution of leukemia cells in several organs using two leukemic mouse models produced by the administration of two cell lines (THP-1, a human myelomonocytic leukemia, and A20, a mouse B cell leukemia/lymphoma) to severe immunodeficient mice. Survival of the mice depended on the tumor burden. Although A20 and THP-1 tumor cells massively infiltrated the parenchyma of the liver and spleen at 21 days after transplantation, A20 cells were hardly found in connective tissues in Glisson’s capsule in the liver as compared with THP-1 cells. In the bone marrow, there was more severe infiltration of A20 cells than THP-1 cells. THP-1 and A20 cells were widely spread in the lungs, but were rarely observed in the small intestine. These findings suggest that each leukemia model has a unique localization of tumor cells in several affected organs, which could critically affect the disease course and the efficacy of therapeutic agents, including cellular immunotherapies.
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Affiliation(s)
- Kiyomi Mashima
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Morio Azuma
- Division of Molecular Pharmacology, Department of Pharmacology, Jichi Medical University
| | - Ken Fujiwara
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University
| | - Takeshi Inagaki
- Division of Forensic Medicine, Department of Anatomy, Jichi Medical University
| | - Iekuni Oh
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Takashi Ikeda
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Kento Umino
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Hirofumi Nakano
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Kaoru Morita
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Kazuya Sato
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Daisuke Minakata
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Ryoko Yamasaki
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Masahiro Ashizawa
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Chihiro Yamamoto
- Division of Hematology, Department of Medicine, Jichi Medical University
| | | | - Kaoru Hatano
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Ken Ohmine
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Kazuo Muroi
- Division of Hematology, Department of Medicine, Jichi Medical University
| | - Nobuhiko Ohno
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University
| | - Yoshinobu Kanda
- Division of Hematology, Department of Medicine, Jichi Medical University
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30
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Wake R, Miyaoka T, Kawakami K, Tsuchie K, Inagaki T, Horiguchi J, Yamamoto Y, Hayashi T, Kitagaki H. Characteristic brain hypoperfusion by 99mTc-ECD single photon emission computed tomography (SPECT) in patients with the first-episode schizophrenia. Eur Psychiatry 2020; 25:361-5. [DOI: 10.1016/j.eurpsy.2009.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 12/14/2009] [Accepted: 12/14/2009] [Indexed: 11/29/2022] Open
Abstract
AbstractObjectiveIn this study, we evaluated brain perfusion in patients with first-episode medicated schizophrenia using the new analytical method, statistical parametric mapping (SPM) applied to single photon emission computed tomography (SPECT).MethodWe performed SPECT with 99-Tc-ethyl cysteinate dimer (99mTc-ECD) of the brain and magnetic resonance imaging (MRI) in patients with schizophrenia (n = 30) and control subjects matched for age and gender (n = 37). A voxel-by-voxel group analysis was performed using SPM2 (Z > 3.0, P < 0.001, uncorrected for multiple comparisons).ResultIn comparison with control subjects, the volumes of the bilateral frontal areas were found to be decreased on MRI. Blood flow was found to be reduced in the bilateral temporal areas in the patients with schizophrenia on SPECT.ConclusionIn this study, patients with first-episode schizophrenia appeared to have significant bilateral temporal hypoperfusion, although temporal volumes were not significantly decreased in comparison with control subjects. Abnormality of temporal lobe blood flow in schizophrenia may show that functional changes occur earlier than structural changes, and may assist in the diagnosis of schizophrenia.
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31
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Omi T, Nakiri S, Nakanishi S, Ishii N, Uno T, Konno F, Inagaki T, Sakamoto A, Shito M, Udagawa C, Tada N, Ochiai K, Kato T, Kawamoto Y, Tsuchida S, Hayama SI. Concentrations of 137Cs radiocaesium in the organs and tissues of low-dose-exposed wild Japanese monkeys. BMC Res Notes 2020; 13:121. [PMID: 32122403 PMCID: PMC7053083 DOI: 10.1186/s13104-020-04972-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 02/24/2020] [Indexed: 01/12/2023] Open
Abstract
Objectives Following the massive earthquake that struck eastern Japan on March 11, 2011, a large amount of radioactive material was released into the environment from the damaged reactor of the Fukushima Daiichi Nuclear Power Plant (FDNPP). After the FDNPP accident, radiocaesium was first detected in muscle samples from wild Japanese monkeys exposed to radioactive materials, and haematologic effects, changes in head size, and delayed body weight gain were also reported, but little is known about the distribution of 137Cs in the organs and tissues of wild Japanese monkeys. Results We detected the 137Cs in various organ and tissue samples of 10 wild Japanese monkeys inhabiting the forested areas of Fukushima City that were captured between July and August 2012. Among muscle, brain, heart, kidney, liver, lung, and spleen, muscle exhibited the highest and the brain the lowest 137Cs concentration. The concentration (mean ± SD) of 137Cs in muscle, brain, heart, kidney, liver, lung, and spleen was 77 ± 66, 26 ± 22, 41 ± 35, 49 ± 41, 41 ± 38, 53 ± 41, and 53 ± 51 Bq/kg, respectively. These results can help us understand the biological effects of long-term internal radiation exposure in non-human primates.
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Affiliation(s)
- Toshinori Omi
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan.
| | - Sachie Nakiri
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Setsuko Nakanishi
- Conservation and Animal Welfare, 1-9-4 Kunitachi City, Tokyo, 186-0004, Japan
| | - Naomi Ishii
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Taiki Uno
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Fumiharu Konno
- Fukushima-Mirai Agricultural Cooperative, 19-2 Kubota, Kamata, Fukushima, Fukushima, 960-0102, Japan
| | - Takeshi Inagaki
- Jichi Medical University, School of Medicine, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Atsushi Sakamoto
- Jichi Medical University, School of Medicine, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan
| | - Masayuki Shito
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Chihiro Udagawa
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Naomi Tada
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Kazuhiko Ochiai
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Takuya Kato
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Yoshi Kawamoto
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Shuichi Tsuchida
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
| | - Shin-Ichi Hayama
- Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino City, Tokyo, 180-8602, Japan
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32
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Abstract
Adipose tissue harbors plasticity to adapt to environmental thermal changes. While brown adipocyte is a thermogenic cell which produces heat acutely in response to cold stimuli, beige (or brite) adipocyte is an inducible form of thermogenic adipocytes which emerges in the white adipose depots in response to chronic cold exposure. Such adaptability of adipocytes is regulated by epigenetic mechanisms. Among them, histone methylation is chemically stable and thus is an appropriate epigenetic mark for mediating cellular memory to induce and maintain the beige adipocyte characteristics. The enzymes that catalyze the methylation or demethylation of H3K27 and H3K9 regulate brown adipocyte biogenesis through their catalytic activity-dependent and -independent mechanisms. Resolving the bivalency of H3K4me3 and H3K27me3 as well as "opening" the chromatin structure by demethylation of H3K9 both mediate beige adipogenesis. In addition, it is recently reported that maintenance of beige adipocyte, beige-to-white transition, and cellular memory of prior cold exposure in beige adipocyte are also regulated by histone methylation. A further understanding of the epigenetic mechanism of beige adipocyte biogenesis would unravel the mechanism of the cellular memory of environmental stimuli and provide a novel therapeutics for the metabolic disorders such as obesity and diabetes that are influenced by environmental factors.
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Affiliation(s)
- Kyoko Tanimura
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
- Department of Diabetes, Endocrinology, and Metabolism, Nippon Medical School, Tokyo 113-8603, Japan
| | - Tomohiro Suzuki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Diana Vargas
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Hiroshi Shibata
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan
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33
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Ahn JK, Beckford B, Beechert J, Bryant K, Campbell M, Chen SH, Comfort J, Dona K, Hara N, Haraguchi H, Hsiung YB, Hutcheson M, Inagaki T, Kamiji I, Kawasaki N, Kim EJ, Kim JL, Kim YJ, Ko JW, Komatsubara TK, Kotera K, Kurilin AS, Lee JW, Lim GY, Lin C, Lin Q, Luo Y, Ma J, Maeda Y, Mari T, Masuda T, Matsumura T, Mcfarland D, McNeal N, Micallef J, Miyazaki K, Murayama R, Naito D, Nakagiri K, Nanjo H, Nishimiya H, Nomura T, Ohsugi M, Okuno H, Sasaki M, Sasao N, Sato K, Sato T, Sato Y, Schamis H, Seki S, Shimizu N, Shimogawa T, Shinkawa T, Shinohara S, Shiomi K, Su S, Sugiyama Y, Suzuki S, Tajima Y, Taylor M, Tecchio M, Togawa M, Tung YC, Wah YW, Watanabe H, Woo JK, Yamanaka T, Yoshida HY. Search for K_{L}→π^{0}νν[over ¯] and K_{L}→π^{0}X^{0} Decays at the J-PARC KOTO Experiment. Phys Rev Lett 2019; 122:021802. [PMID: 30720307 DOI: 10.1103/physrevlett.122.021802] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/14/2018] [Indexed: 06/09/2023]
Abstract
A search for the rare decay K_{L}→π^{0}νν[over ¯] was performed. With the data collected in 2015, corresponding to 2.2×10^{19} protons on target, a single event sensitivity of (1.30±0.01_{stat}±0.14_{syst})×10^{-9} was achieved and no candidate events were observed. We set an upper limit of 3.0×10^{-9} for the branching fraction of K_{L}→π^{0}νν[over ¯] at the 90% confidence level (C.L.), which improved the previous limit by almost an order of magnitude. An upper limit for K_{L}→π^{0}X^{0} was also set as 2.4×10^{-9} at the 90% C.L., where X^{0} is an invisible boson with a mass of 135 MeV/c^{2}.
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Affiliation(s)
- J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - B Beckford
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Beechert
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Bryant
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Campbell
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S H Chen
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - J Comfort
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - K Dona
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - N Hara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Haraguchi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - M Hutcheson
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - T Inagaki
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - I Kamiji
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Kawasaki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - E J Kim
- Division of Science Education, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - J L Kim
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - Y J Kim
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - J W Ko
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - T K Komatsubara
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - K Kotera
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - A S Kurilin
- Laboratory of Nuclear Problems, Joint Institute for Nuclear Researches, Dubna, Moscow region 141980, Russia
| | - J W Lee
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - G Y Lim
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - C Lin
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617, Republic of China
| | - Q Lin
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y Luo
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - J Ma
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y Maeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Mari
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Masuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Matsumura
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - D Mcfarland
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - N McNeal
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J Micallef
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - K Miyazaki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - R Murayama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - D Naito
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Nakagiri
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nanjo
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Nishimiya
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Nomura
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - M Ohsugi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Okuno
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Sasaki
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - N Sasao
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - K Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y Sato
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Schamis
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - S Seki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Shimizu
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Shimogawa
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - T Shinkawa
- Department of Applied Physics, National Defense Academy, Kanagawa 239-8686, Japan
| | - S Shinohara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Shiomi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - S Su
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Y Sugiyama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Suzuki
- Department of Physics, Saga University, Saga 840-8502, Japan
| | - Y Tajima
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
| | - M Taylor
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Tecchio
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - M Togawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y C Tung
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - Y W Wah
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - H Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- J-PARC Center, Tokai, Ibaraki 319-1195, Japan
| | - J K Woo
- Department of Physics, Jeju National University, Jeju 63243, Republic of Korea
| | - T Yamanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Y Yoshida
- Department of Physics, Yamagata University, Yamagata 990-8560, Japan
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Azuma M, Tsukada T, Inagaki T, Casmad F, Jindatip D, Tofrizal A, Maliza R, Batchuluun K, Syaidah R, Ohno N, Fujiwara K, Kikuchi M, Yashiro T. Immunohistochemical Study of the Laminin α5 Chain and Its Specific Receptor, Basal Cell Adhesion Molecule (BCAM), in both Fetal and Adult Rat Pituitary Glands. Acta Histochem Cytochem 2018; 51:145-152. [PMID: 30510328 PMCID: PMC6261841 DOI: 10.1267/ahc.18014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 08/10/2018] [Indexed: 01/01/2023] Open
Abstract
Laminin, a major basement membrane protein, comprises three subunit chains: α, β, and γ chains. Among these chains, only the laminin α chain is capable of signaling via laminin receptors. Although laminin isoforms containing the α5 chain were reported to be the first laminin produced during rat anterior pituitary gland development, the functions of these isoforms are unknown. We used immunohistochemical techniques to localize the laminin α5 chain and its specific receptor, basal cell adhesion molecule (BCAM), in fetal and adult pituitary gland. Laminin α5 chain immunoreactivity was observed in the basement membrane of the primordial adenohypophysis at embryonic days 12.5 to 19.5. Double immunostaining showed that BCAM was present and co-localized with the laminin α5 chain in the tissue. Quantitative analysis showed that the laminin α5 chain and BCAM were expressed in the anterior pituitary gland during postnatal development and in adulthood (postnatal day 60). In the adult gland, co-localization of the laminin α5 chain and BCAM was observed, and BCAM was detected in both the folliculo-stellate cells and endothelial cells. These results suggest that laminin α5 chain signaling via BCAM occurs in both the fetal adenohypophysis and adult anterior pituitary gland.
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Affiliation(s)
- Morio Azuma
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Takehiro Tsukada
- Department of Biomolecular Science, Faculty of Science, Toho University
| | - Takeshi Inagaki
- Division of Forensic Medicine, Department of Anatomy, Jichi Medical University School of Medicine
| | - Fujianti Casmad
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Depicha Jindatip
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University
| | - Alimuddin Tofrizal
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Rita Maliza
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Khongorzul Batchuluun
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Rahimi Syaidah
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Nobuhiko Ohno
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Ken Fujiwara
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Motoshi Kikuchi
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
- Laboratory of Natural History, Jichi Medical University School of Medicine
| | - Takashi Yashiro
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
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Inagaki T, Kimura A, Makishi G, Tanaka S, Tanaka N. Development of a new clinical decision rule for cervical CT to detect cervical spine injury in patients with head or neck trauma. Emerg Med J 2018; 35:614-618. [PMID: 30032123 PMCID: PMC6173816 DOI: 10.1136/emermed-2017-206930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 06/10/2018] [Accepted: 06/21/2018] [Indexed: 11/05/2022]
Abstract
Objective Previous cervical spine imaging decision rules have been based on positive findings on plain X-ray and are limited by lack of specificity, age restrictions and complicated algorithms. We previously derived and validated a clinical decision rule (Rule 1) for detecting cervical spine injury (CSI) on CT in a single-centre study. This recommended CT for patients with (1) GCS score <14, (2) GCS 14–15 and posterior cervical tenderness or neurological deficit, (3) age ≥60 years and fall down stairs, or (4) age <60 and injured in a motorcycle collision or fallen from height. This study assessed the accuracy and reliability of this rule and refined the rule. Methods We conducted a prospective, dual-centre study at two Japanese EDs between August 2012 and March 2014. Patients with head or neck injury ≥16 years of age were included. Clinical data were collected from medical records. Imaging was at the discretion of the treating physician. CSI was diagnosed as a fracture or dislocation seen on CT; patients who were not imaged were followed for 14 days. We analysed the sensitivity and specificity of Rule 1 and refined it post hoc using recursive partitioning. Results 1192 patients were enrolled. 927 completed follow-up. Of these, 584 (63.0%) underwent CT imaging and 38 had CSI. Sensitivity and specificity of Rule 1 were 92.1% (95% CI 79.2% to 97.3%) and 58.6% (95% CI 55.4% to 61.9%). A second rule (Rule 2) was derived recommending CT for those with any of the following: GCS <14, cervical tenderness, neurological deficit or mechanism of injury (fall down stairs, motorcycle collision or fall from height) without age limits. Sensitivity and specificity were 100% (95% CI 90.8% to 100%) and 51.9% (95% CI 48.6% to 55.2%), respectively. Conclusions Our initial CT decision rule had lower sensitivity than in our initial validation study. A refined decision rule based on GCS, neck tenderness, neurological deficit and mechanism of injury showed excellent sensitivity with a small loss of specificity. Rule 2 will now need validation in an independent cohort.
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Affiliation(s)
- Takeshi Inagaki
- Department of Emergency Medicine and Critical Care, Center Hospital of the National Center for Global Health and Medicine, Tokyo, Japan
| | - Akio Kimura
- Department of Emergency Medicine and Critical Care, Center Hospital of the National Center for Global Health and Medicine, Tokyo, Japan
| | - Go Makishi
- Department of Emergency and Critical Care Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - Shigeru Tanaka
- Department of Emergency and Critical Care Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan
| | - Noriko Tanaka
- Biostatistics Section, Department of Clinical Research and Informatics, Clinical Science Center, National Center for Global Health and Medicine, Tokyo, Japan
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36
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Inagaki T, Terada J, Yahaba M, Kawata N, Jujo T, Nagashima K, Sakao S, Tanabe N, Tatsumi K. Heart Rate and Oxygen Saturation Change Patterns During 6-min Walk Test in Subjects With Chronic Thromboembolic Pulmonary Hypertension. Respir Care 2017; 63:573-583. [PMID: 29279364 DOI: 10.4187/respcare.05788] [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: 11/05/2022]
Abstract
BACKGROUND The 6-min walk test (6MWT) is commonly performed to assess functional status in patients with chronic thromboembolic pulmonary hypertension. However, changes in heart rate and oxygen saturation (SpO2 ) patterns during 6MWT in patients with chronic thromboembolic pulmonary hypertension remain unclear. METHODS Thirty-one subjects with chronic thromboembolic pulmonary hypertension were retrospectively evaluated to examine the relationships between the change in heart rate (Δheart rate), heart rate acceleration time, slope of heart rate acceleration, heart rate recovery during the first minute after 6MWT (HRR1), change in SpO2 (ΔSpO2 ), SpO2 reduction time, and SpO2 recovery time during 6MWT, and the severity of pulmonary hemodynamics assessed by right heart catheterization and echocardiography. RESULTS Subjects with severe chronic thromboembolic pulmonary hypertension had significantly longer heart rate acceleration time (144.9 ± 63.9 s vs 96.0 ± 42.5 s, P = .033), lower Δheart rate (47.4 ± 16.9 vs 61.8 ± 13.6 beats, P = .02), and lower HRR1 (13.3 ± 9.0 beats vs 27.1 ± 9.2 beats, P < .001) compared to subjects with mild chronic thromboembolic pulmonary hypertension. Subjects with severe chronic thromboembolic pulmonary hypertension also had significantly longer SpO2 reduction time (178.3 ± 70.3 s vs 134.3 ± 58.4 s, P = .03) and SpO2 recovery time (107.6 ± 35.3 s vs 69.8 ± 32.7 s, P = .004) than did subjects with mild chronic thromboembolic pulmonary hypertension. Multivariate linear regression analysis showed only mean pulmonary arterial pressure independently was associated with heart rate acceleration time and slope of heart rate acceleration. CONCLUSIONS Heart rate and SpO2 change patterns during 6MWT are predominantly associated with pulmonary hemodynamics in subjects with chronic thromboembolic pulmonary hypertension. Evaluating heart rate and SpO2 change patterns during 6MWT may serve as a safe and convenient way to follow the change in pulmonary hemodynamics.
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Affiliation(s)
- Takeshi Inagaki
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Division of Rehabilitation, Chiba University Hospital, Chiba, Japan
| | - Jiro Terada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Misuzu Yahaba
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Naoko Kawata
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takayuki Jujo
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kengo Nagashima
- Department of Global Clinical Research, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
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Inagaki T, Hashizume A, Yasuhiro H, Shinichiro Y, Daisuke I, Masahisa K. Development of a quantitative composite functional measure for spinal and bulbar muscular atrophy (SBMA). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hashizume A, Katsuno M, Suzuki K, Hirakawa A, Hijikata Y, Yamada S, Inagaki T, Banno H, Sobue G. Long-term treatment with leuprorelin for spinal and bulbar muscular atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Okuda S, Takano S, Shirakawa M, Tanaka M, Inagaki T, Kajita M, Imoto M, Ikkaku T, Ueno M, Kanda F, Toda T. Executive function correlates with improvement of gait speed by rehabilitation in Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1677] [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: 12/01/2022]
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40
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Yamada S, Hashizume A, Hijikata Y, Inagaki T, Ito D, Nakamura T, Katsuno M. The impact of cold exposure in spinal and bulbar muscular atrophy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3058] [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: 11/27/2022]
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41
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Affiliation(s)
- Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan.
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42
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Fukunaka A, Fukada T, Bhin J, Suzuki L, Tsuzuki T, Takamine Y, Bin BH, Yoshihara T, Ichinoseki-Sekine N, Naito H, Miyatsuka T, Takamiya S, Sasaki T, Inagaki T, Kitamura T, Kajimura S, Watada H, Fujitani Y. Zinc transporter ZIP13 suppresses beige adipocyte biogenesis and energy expenditure by regulating C/EBP-β expression. PLoS Genet 2017; 13:e1006950. [PMID: 28854265 PMCID: PMC5576661 DOI: 10.1371/journal.pgen.1006950] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 07/31/2017] [Indexed: 11/19/2022] Open
Abstract
Given the relevance of beige adipocytes in adult humans, a better understanding of the molecular circuits involved in beige adipocyte biogenesis has provided new insight into human brown adipocyte biology. Genetic mutations in SLC39A13/ZIP13, a member of zinc transporter family, are known to reduce adipose tissue mass in humans; however, the underlying mechanisms remains unknown. Here, we demonstrate that the Zip13-deficient mouse shows enhanced beige adipocyte biogenesis and energy expenditure, and shows ameliorated diet-induced obesity and insulin resistance. Both gain- and loss-of-function studies showed that an accumulation of the CCAAT/enhancer binding protein-β (C/EBP-β) protein, which cooperates with dominant transcriptional co-regulator PR domain containing 16 (PRDM16) to determine brown/beige adipocyte lineage, is essential for the enhanced adipocyte browning caused by the loss of ZIP13. Furthermore, ZIP13-mediated zinc transport is a prerequisite for degrading the C/EBP-β protein to inhibit adipocyte browning. Thus, our data reveal an unexpected association between zinc homeostasis and beige adipocyte biogenesis, which may contribute significantly to the development of new therapies for obesity and metabolic syndrome. Inducible brown fat-like cells, named beige adipocytes have recently been a topic of great interest, mainly because they are induced in response to external cues, and are closely associated with adult human brown adipocyte. Therefore, the identification of selective molecular circuits involved in beige adipocyte biogenesis and thermogenesis will enable the selective induction of white adipocyte browning as a therapy for obesity. Here, we show that zinc homeostasis, which is controlled by ZIP13, a protein associated with human disease, is essential for the accurate regulation of beige adipocyte differentiation. Inhibition of ZIP13 function enhances beige adipocyte biogenesis and thermogenesis, highlighting the potential of ZIP13 as a therapeutic target for obesity and metabolic syndrome.
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Affiliation(s)
- Ayako Fukunaka
- Department of Metabolism & Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Laboratory of Developmental Biology & Metabolism, Institute for Molecular & Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
- AMED-JST-CREST Program, Tokyo, Japan
| | - Toshiyuki Fukada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Jinhyuk Bhin
- Department of Molecular Carcinogenesis, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Luka Suzuki
- Department of Metabolism & Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takamasa Tsuzuki
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba, Japan
| | - Yuri Takamine
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba, Japan
| | - Bum-Ho Bin
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Toshinori Yoshihara
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba, Japan
| | | | - Hisashi Naito
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba, Japan
| | - Takeshi Miyatsuka
- Department of Metabolism & Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shinzaburo Takamiya
- Department of Tropical Medicine and Parasitology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Tsutomu Sasaki
- Laboratory of Metabolic Signaling, Institute for Molecular & Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Takeshi Inagaki
- Laboratory of Epigenetics and Metabolism, Institute for Molecular & Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Tadahiro Kitamura
- Laboratory of Metabolic Signaling, Institute for Molecular & Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
| | - Shingo Kajimura
- UCSF Diabetes Center and Department of Cell and Tissue Biology, University of California–San Francisco, San Francisco, United States of America
- PRESTO-JST, Tokyo, Japan
| | - Hirotaka Watada
- Department of Metabolism & Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Center for Identification of Diabetic Therapeutic Targets, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Sportology Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Center for Therapeutic Innovations in Diabetes, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoshio Fujitani
- Department of Metabolism & Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Laboratory of Developmental Biology & Metabolism, Institute for Molecular & Cellular Regulation, Gunma University, Maebashi, Gunma, Japan
- AMED-JST-CREST Program, Tokyo, Japan
- Center for Therapeutic Innovations in Diabetes, Juntendo University Graduate School of Medicine, Tokyo, Japan
- * E-mail:
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Tsuchimochi H, Thambyah H, Edgley A, Inagaki T, Waddingham M, Chen Y, Du C, Zhan D, Sukumaran V, Sonobe T, Umetani K, Shirai M, Pearson J. P3478Beta-blockade prevents coronary microvascular endothelial dysfunction in non-obese salt-sensitive insulin resistant rats on a high salt diet. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3478] [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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Inagaki T, Sakai J, Kajimura S. Transcriptional and epigenetic control of brown and beige adipose cell fate and function. Nat Rev Mol Cell Biol 2017; 18:527. [PMID: 28698600 DOI: 10.1038/nrm.2017.72] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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45
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Omi T, Nakazawa S, Udagawa C, Tada N, Ochiai K, Chong YH, Kato Y, Mitsui H, Gin A, Oda H, Azakami D, Tamura K, Sako T, Inagaki T, Sakamoto A, Tsutsui T, Bonkobara M, Tsuchida S, Ikemoto S. Molecular Characterization of the Cytidine Monophosphate-N-Acetylneuraminic Acid Hydroxylase (CMAH) Gene Associated with the Feline AB Blood Group System. PLoS One 2016; 11:e0165000. [PMID: 27755584 PMCID: PMC5068781 DOI: 10.1371/journal.pone.0165000] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/04/2016] [Indexed: 11/30/2022] Open
Abstract
Cat’s AB blood group system (blood types A, B, and AB) is of major importance in feline transfusion medicine. Type A and type B antigens are Neu5Gc and Neu5Ac, respectively, and the enzyme CMAH participating in the synthesis of Neu5Gc from Neu5Ac is associated with this cat blood group system. Rare type AB erythrocytes express both Neu5Gc and Neu5Ac. Cat serum contains naturally occurring antibodies against antigens occurring in the other blood types. To understand the molecular genetic basis of this blood group system, we investigated the distribution of AB blood group antigens, CMAH gene structure, mutation, diplotypes, and haplotypes of the cat CMAH genes. Blood-typing revealed that 734 of the cats analyzed type A (95.1%), 38 cats were type B (4.9%), and none were type AB. A family of three Ragdoll cats including two type AB cats and one type A was also used in this study. CMAH sequence analyses showed that the CMAH protein was generated from two mRNA isoforms differing in exon 1. Analyses of the nucleotide sequences of the 16 exons including the coding region of CMAH examined in the 34 type B cats and in the family of type AB cats carried the CMAH variants, and revealed multiple novel diplotypes comprising several polymorphisms. Haplotype inference, which was focused on non-synonymous SNPs revealed that eight haplotypes carried one to four mutations in CMAH, and all cats with type B (n = 34) and AB (n = 2) blood carried two alleles derived from the mutated CMAH gene. These results suggested that double haploids selected from multiple recessive alleles in the cat CMAH loci were highly associated with the expression of the Neu5Ac on erythrocyte membrane in types B and AB of the feline AB blood group system.
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Affiliation(s)
- Toshinori Omi
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
- * E-mail:
| | - Shota Nakazawa
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Chihiro Udagawa
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Naomi Tada
- International Institute of Small Animal Medicine (Bio Plus), AHB Inc., Tokyo, Japan
| | - Kazuhiko Ochiai
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yong Hwa Chong
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yuiko Kato
- Department of Basic Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hiroko Mitsui
- International Institute of Small Animal Medicine (Bio Plus), AHB Inc., Tokyo, Japan
| | - Azusa Gin
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Hitomi Oda
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Kyoichi Tamura
- Department of Veterinary Clinical Pathology, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Toshinori Sako
- Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Takeshi Inagaki
- Department of Legal Medicine, Jichi Medical University, Tochigi, Japan
| | - Atsushi Sakamoto
- Department of Legal Medicine, Jichi Medical University, Tochigi, Japan
| | - Toshihiko Tsutsui
- International Institute of Small Animal Medicine (Bio Plus), AHB Inc., Tokyo, Japan
| | - Makoto Bonkobara
- Department of Veterinary Clinical Pathology, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Shuichi Tsuchida
- Laboratory of Comparative Cellular Biology, School of Veterinary Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Shigenori Ikemoto
- School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Tokyo, Japan
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Inagaki T, Smith NL, Sherva KM, Ramakrishnan S. Cross-generational effects of parental low dose BPA exposure on the Gonadotropin-Releasing Hormone3 system and larval behavior in medaka (Oryzias latipes). Neurotoxicology 2016; 57:163-173. [PMID: 27713093 DOI: 10.1016/j.neuro.2016.09.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 09/02/2016] [Accepted: 09/29/2016] [Indexed: 11/18/2022]
Abstract
Growing evidence indicates that chronic exposure to Bisphenol A (BPA) may disrupt normal brain function and behavior mediated by gonadotropin-releasing hormone (GnRH) pathways. Previous studies have shown that low dose BPA (200ng/ml) exposure during embryogenesis altered development of extra-hypothalamic GnRH3 systems and non-reproductive locomotor behavior in medaka. Effects of parental low-dose BPA exposure on the development of GnRH3 systems and locomotor behavior of offspring are not well known. This study examines whether the neurophysiological and behavioral effects of BPA in parents (F0 generation) are carried over to their offspring (F1 generation) using stable transgenic medaka embryos/larvae with GnRH3 neurons tagged with green fluorescent protein (GFP). Parental fish were exposed to BPA (200ng/ml) for either life-long or different developmental time windows. Fertilized F1 eggs were collected and raised in egg/fish water with no environmental exposure to BPA. All experiments were performed on F1 embryos/larvae, which were grouped based on the following parental (F0) BPA exposure conditions - (i) Group 1 (G1): through life; (ii) G2: during embryogenesis and early larval development [1-14days post fertilization (dpf)]; (iii) G3: during neurogenesis (1-5dpf); and (iv) G4: during sex differentiation (5-14dpf). Embryos from unexposed vehicle treated parents served as controls (G0). G1 embryos showed significantly reduced survival rates and delayed hatching time compared to other groups, while G4 embryos hatched significantly earlier than all other groups. At 3 dpf, the GnRH3-GFP intensity was increased by 47% in G3 embryos and decreased in G4 embryos by 59% compared to controls. At 4dpf, G1 fish showed 42% increased intensity, while GFP intensity was reduced by 44% in G3 subjects. In addition, the mean brain size of G1, G3 and G4 embryos were smaller than that of control at 4dpf. At 20dpf, all larvae from BPA-treated parents showed significantly decreased total movement (distance covered) compared with controls, with G2 and G3 fish showing reduced velocity of movement. While at 20 dpf no group differences were seen in the soma diameter of GnRH3-GFP neurons, a 34% decrease in SV2 expression, a marker for synaptic transmission, in G1 larvae was observed. These data suggest that parental BPA exposure during critical windows of embryonic development or chronic treatment affects next-generation offspring both in embryonic and larval brain development as well as larval behavior.
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Affiliation(s)
- T Inagaki
- Department of Biology, University of Puget Sound, Tacoma, WA, USA; Neuroscience Program, University of Puget Sound, Tacoma, WA, USA
| | - N L Smith
- Department of Chemistry/Biochemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - K M Sherva
- Department of Chemistry/Biochemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - S Ramakrishnan
- Department of Biology, University of Puget Sound, Tacoma, WA, USA; Neuroscience Program, University of Puget Sound, Tacoma, WA, USA.
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Abstract
White adipocytes store excess energy in the form of triglycerides, whereas brown and beige adipocytes dissipate energy in the form of heat. This thermogenic function relies on the activation of brown and beige adipocyte-specific gene programmes that are coordinately regulated by adipose-selective chromatin architectures and by a set of unique transcriptional and epigenetic regulators. A number of transcriptional and epigenetic regulators are also required for promoting beige adipocyte biogenesis in response to various environmental stimuli. A better understanding of the molecular mechanisms governing the generation and function of brown and beige adipocytes is necessary to allow us to control adipose cell fate and stimulate thermogenesis. This may provide a therapeutic approach for the treatment of obesity and obesity-associated diseases, such as type 2 diabetes.
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Affiliation(s)
- Takeshi Inagaki
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan 153-8904.,The Translational Systems Biology and Medicine Initiative (TSBMI), Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan 113-8655
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan 153-8904.,The Translational Systems Biology and Medicine Initiative (TSBMI), Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan 113-8655
| | - Shingo Kajimura
- UCSF Diabetes Center and Department of Cell and Tissue Biology, University of California, San Francisco, California 94143-0669, USA
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48
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Matsumura Y, Nakaki R, Inagaki T, Yoshida A, Kano Y, Kimura H, Tanaka T, Tsutsumi S, Nakao M, Doi T, Fukami K, Osborne TF, Kodama T, Aburatani H, Sakai J. H3K4/H3K9me3 Bivalent Chromatin Domains Targeted by Lineage-Specific DNA Methylation Pauses Adipocyte Differentiation. Mol Cell 2016; 60:584-96. [PMID: 26590716 DOI: 10.1016/j.molcel.2015.10.025] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 08/11/2015] [Accepted: 10/12/2015] [Indexed: 12/29/2022]
Abstract
Bivalent H3K4me3 and H3K27me3 chromatin domains in embryonic stem cells keep active developmental regulatory genes expressed at very low levels and poised for activation. Here, we show an alternative and previously unknown bivalent modified histone signature in lineage-committed mesenchymal stem cells and preadipocytes that pairs H3K4me3 with H3K9me3 to maintain adipogenic master regulatory genes (Cebpa and Pparg) expressed at low levels yet poised for activation when differentiation is required. We show lineage-specific gene-body DNA methylation recruits H3K9 methyltransferase SETDB1, which methylates H3K9 immediately downstream of transcription start sites marked with H3K4me3 to establish the bivalent domain. At the Cebpa locus, this prevents transcription factor C/EBPβ binding, histone acetylation, and further H3K4me3 deposition and is associated with pausing of RNA polymerase II, which limits Cebpa gene expression and adipogenesis.
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Affiliation(s)
- Yoshihiro Matsumura
- Division of Metabolic Medicine, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan; The Translational Systems Biology and Medicine Initiative (TSBMI), Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
| | - Ryo Nakaki
- Genome Science Division, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Takeshi Inagaki
- Division of Metabolic Medicine, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan; The Translational Systems Biology and Medicine Initiative (TSBMI), Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Ayano Yoshida
- Division of Metabolic Medicine, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan; Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Science, Tokyo 192-0392, Japan
| | - Yuka Kano
- Division of Metabolic Medicine, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Hiroshi Kimura
- Department of Biological Sciences, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Toshiya Tanaka
- Division of Metabolic Medicine, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan; Laboratory for Systems Biology and Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan; The Translational Systems Biology and Medicine Initiative (TSBMI), Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Shuichi Tsutsumi
- Genome Science Division, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Mitsuyoshi Nakao
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 860-0811, Japan
| | - Takefumi Doi
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kiyoko Fukami
- Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Science, Tokyo 192-0392, Japan
| | - Timothy F Osborne
- Metabolic Disease Program, Sanford-Burnham Medical Research Institute, Orlando, FL 32827, USA
| | - Tatsuhiko Kodama
- Laboratory for Systems Biology and Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Hiroyuki Aburatani
- Genome Science Division, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan; The Translational Systems Biology and Medicine Initiative (TSBMI), Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Juro Sakai
- Division of Metabolic Medicine, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan; The Translational Systems Biology and Medicine Initiative (TSBMI), Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
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49
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Diong C, Jones PP, Tsuchimochi H, Gray EA, Hughes G, Inagaki T, Bussey CT, Fujii Y, Umetani K, Shirai M, Schwenke DO. Sympathetic hyper-excitation in obesity and pulmonary hypertension: physiological relevance to the 'obesity paradox'. Int J Obes (Lond) 2016; 40:938-46. [PMID: 27001546 DOI: 10.1038/ijo.2016.33] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 01/10/2016] [Accepted: 01/28/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Within the lung, sympathetic nerve activity (SNA) has an important role in facilitating pulmonary vasodilation. As SNA is elevated in obesity, we aimed to assess the impact of sympathetic hyper-excitation on pulmonary vascular homeostasis in obesity, and its potential role in ameliorating the severity of pulmonary hypertension (PH); the well-documented 'obesity paradox' phenomenon. METHODS Zucker obese and lean rats were exposed to normoxia or chronic hypoxia (CH-10% O2) for 2 weeks. Subsequently, pulmonary SNA (pSNA) was recorded (electrophysiology), or the pulmonary microcirculation was visualized using Synchrotron microangiography. Acute hypoxic pulmonary vasoconstriction (HPV) was assessed before and after blockade of β1-adrenergic receptors (ARs) (atenolol, 3 mg kg(-1)) and β1+β2-adrenergic (propranolol, 2 mg kg(-1)). RESULTS pSNA of normoxic obese rats was higher than lean counterparts (2.4 and 0.5 μV s, respectively). SNA was enhanced following the development of PH in lean rats, but more so in obese rats (1.7 and 6.8 μV s, respectively). The magnitude of HPV was similar for all groups (for example, ~20% constriction of the 200-300 μm vessels). Although β-blockade did not modify HPV in lean rats, it significantly augmented the HPV in normoxic obese rats (β1 and β2 blockade), and more so in obese rats with PH (β2-blockade alone). Western blots showed, while the expression of pulmonary β1-ARs was similar for all rats, the expression of β2-ARs was downregulated in obesity and PH. CONCLUSIONS This study suggests that sympathetic hyper-excitation in obesity may have an important role in constraining the severity of PH and, thus, contribute in part to the 'obesity paradox' in PH.
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Affiliation(s)
- C Diong
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - P P Jones
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - H Tsuchimochi
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - E A Gray
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - G Hughes
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - T Inagaki
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - C T Bussey
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - Y Fujii
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - K Umetani
- Japan Synchrotron Radiation Research Institute, Hyogo, Japan
| | - M Shirai
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - D O Schwenke
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
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50
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Inagaki T, Smith N, Lee EK, Ramakrishnan S. Low dose exposure to Bisphenol A alters development of gonadotropin-releasing hormone 3 neurons and larval locomotor behavior in Japanese Medaka. Neurotoxicology 2015; 52:188-97. [PMID: 26687398 DOI: 10.1016/j.neuro.2015.12.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/24/2015] [Accepted: 12/04/2015] [Indexed: 11/30/2022]
Abstract
Accumulating evidence indicates that chronic low dose exposure to Bisphenol A (BPA), an endocrine disruptor, may disrupt normal brain development and behavior mediated by the gonadotropin-releasing hormone (GnRH) pathways. While it is known that GnRH neurons in the hypothalamus regulate reproductive physiology and behavior, functional roles of extra-hypothalamic GnRH neurons remain unclear. Furthermore, little is known whether BPA interacts with extra-hypothalamic GnRH3 neural systems in vulnerable developing brains. Here we examined the impact of low dose BPA exposure on the developing GnRH3 neural system, eye and brain growth, and locomotor activity in transgenic medaka embryos and larvae with GnRH3 neurons tagged with GFP. Fertilized eggs were collected daily and embryos/larvae were chronically exposed to 200ng/ml of BPA, starting at 1 day post fertilization (dpf). BPA significantly increased fluorescence intensity of the GnRH3-GFP neural population in the terminal nerve (TN) of the forebrain at 3dpf, but decreased the intensity at 5dpf, compared with controls. BPA advanced eye pigmentation without affecting eye and brain size development, and accelerated times to hatch. Following chronic BPA exposure, 20dpf larvae showed suppression of locomotion, both in distance covered and speed of movement (47% and 43% reduction, respectively). BPA-induced hypoactivity was accompanied by decreased cell body sizes of individual TN-GnRH3 neurons (14% smaller than those of controls), but not of non-GnRH3 neurons. These novel data demonstrate complex neurobehavioral effects of BPA on the development of extra-hypothalamic GnRH3 neurons in teleost fish.
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Affiliation(s)
- T Inagaki
- Department of Biology, Neuroscience program, University of Puget Sound, Tacoma, WA 98416, USA
| | - N Smith
- Department of Chemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - E K Lee
- Department of Chemistry, University of Puget Sound, Tacoma, WA 98416, USA
| | - S Ramakrishnan
- Department of Biology, Neuroscience program, University of Puget Sound, Tacoma, WA 98416, USA.
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