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Takahashi Y, Yoda M, Tsuji O, Horiuchi K, Watanabe K, Nakamura M. IL-33-ST2 signaling in fibro-adipogenic progenitors alleviates immobilization-induced muscle atrophy in mice. Skelet Muscle 2024; 14:6. [PMID: 38561845 PMCID: PMC10983726 DOI: 10.1186/s13395-024-00338-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND The regenerative and adaptive capacity of skeletal muscles reduces with age, leading to severe disability and frailty in the elderly. Therefore, development of effective therapeutic interventions for muscle wasting is important both medically and socioeconomically. In the present study, we aimed to elucidate the potential contribution of fibro-adipogenic progenitors (FAPs), which are mesenchymal stem cells in skeletal muscles, to immobilization-induced muscle atrophy. METHODS Young (2-3 months), adult (12-14 months), and aged (20-22 months) mice were used for analysis. Muscle atrophy was induced by immobilizing the hind limbs with a steel wire. FAPs were isolated from the hind limbs on days 0, 3, and 14 after immobilization for transcriptome analysis. The expression of ST2 and IL-33 in FAPs was evaluated by flow cytometry and immunostaining, respectively. To examine the role of IL-33-ST2 signaling in vivo, we intraperitoneally administered recombinant IL-33 or soluble ST2 (sST2) twice a week throughout the 2-week immobilization period. After 2-week immobilization, the tibialis anterior muscles were harvested and the cross-sectional area of muscle fibers was evaluated. RESULTS The number of FAPs increased with the progression of muscle atrophy after immobilization in all age-groups. Transcriptome analysis of FAPs collected before and after immobilization revealed that Il33 and Il1rl1 transcripts, which encode the IL-33 receptor ST2, were transiently induced in young mice and, to a lesser extent, in aged mice. The number of FAPs positive for ST2 increased after immobilization in young mice. The number of ST2-positive FAPs also increased after immobilization in aged mice, but the difference from the baseline was not statistically significant. Immunostaining for IL-33 in the muscle sections revealed a significant increase in the number of FAPs expressing IL-33 after immobilization. Administration of recombinant IL-33 suppressed immobilization-induced muscle atrophy in aged mice but not in young mice. CONCLUSIONS Our data reveal a previously unknown protective role of IL-33-ST2 signaling against immobilization-induced muscle atrophy in FAPs and suggest that IL-33-ST2 signaling is a potential new therapeutic target for alleviating disuse muscle atrophy, particularly in older adults.
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Affiliation(s)
- Yoshiyuki Takahashi
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Masaki Yoda
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Osahiko Tsuji
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama, 359-8513, Japan
| | - Kota Watanabe
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan.
| | - Masaya Nakamura
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
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Miyadera H, Sugita T, Fujimaki T, Nakai Y, Noguchi K, Kusumawati Y, Yamamoto S, Ueno S, Kume N, Kurihara K, Yoda M, Morris CL, Guardincerri E, Durham JM, Poulson D. Designing a muon scattering scanner for nuclear debris measurement. Appl Opt 2024; 63:A52-A58. [PMID: 38437382 DOI: 10.1364/ao.509864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/30/2024] [Indexed: 03/06/2024]
Abstract
Removal of fuel debris is planned to start at Unit 2 of the Fukushima Daiichi Nuclear Power Plant. During the removal, it is desirable to distinguish fuel debris from radioactive wastes and to sort the fuel debris accordingly to the amounts of nuclear material contained. Muon scattering tomography invented at Los Alamos in the early 2000s is highly sensitivity to high-atomic-number materials such as uranium. A muon scanner to sort the debris is designed and currently in production. One of the challenges is to operate the muon scanner in the presence of high γ-ray radiations from the debris: muon-event-identification electronics and a muon-tracking algorithm in the presence of high γ-ray radiations were developed.
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Ishizaka T, Horiuchi K, Kondo S, Isaji M, Nakagawa T, Inoue M, Rikitake H, Taguchi E, Susa M, Yoda M, Ono T, Kozai Y, Chiba K. Eribulin mesylate induces bone mass loss by promoting osteoclastic bone resorption in mice. Bone Rep 2023; 18:101693. [PMID: 37305428 PMCID: PMC10248043 DOI: 10.1016/j.bonr.2023.101693] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 05/23/2023] [Accepted: 05/28/2023] [Indexed: 06/13/2023] Open
Abstract
Over the past few decades, the clinical outcomes of patients with cancer have significantly improved mostly owing to the development of effective chemotherapeutic treatments. However, chronic health conditions such as bone mass loss and risk of fragility fractures caused by chemotherapy have also emerged as crucial issues in patients treated for cancer. In this study, we aimed to understand the effect of eribulin mesylate (ERI), a microtubule-targeting agent currently used to treat metastatic breast cancer and certain subtypes of advanced sarcomas, on bone metabolism in mice. The administration of ERI reduced bone mass in mice, mainly by promoting osteoclast activity. Gene expression analysis of skeletal tissues revealed no change in the expression levels of the transcripts for RANK ligand, one of the master regulators of osteoclastogenesis; however, the transcript levels of osteoprotegerin, which neutralizes RANK ligand, were significantly reduced in ERI-treated mice compared with those in vehicle-treated controls, indicating a relative increase in RANK ligand availability after ERI treatment. In line with the increased bone resorption in ERI-treated mice, we found that zoledronate administration effectively suppressed bone loss in these mice. These results reveal a previously unrecognized effect of ERI on bone metabolism and suggest the application of bisphosphonates for patients with cancer undergoing treatment with ERI.
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Affiliation(s)
- Takahiro Ishizaka
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Shinya Kondo
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Masashi Isaji
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Takahiro Nakagawa
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Masahiro Inoue
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Hajime Rikitake
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Eiko Taguchi
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Michiro Susa
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Masaki Yoda
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Takeshi Ono
- Department of Global Infectious Diseases and Tropical Medicine, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
| | - Yusuke Kozai
- Department of Education Planning, Kanagawa Dental University, 82 Inaokacho, Yokosuka, Kanagawa 238-8580, Japan
| | - Kazuhiro Chiba
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama 359-8513, Japan
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4
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Takada Y, Matsumura N, Shirasawa H, Yoda M, Matsumoto M, Nakamura M, Horiuchi K. Aging Aggravates the Progression of Muscle Degeneration After Rotator Cuff Tears in Mice. Arthroscopy 2022; 38:752-760. [PMID: 34571183 DOI: 10.1016/j.arthro.2021.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to evaluate the impact of aging on muscle degeneration after rotator cuff tear (RCT) in mice. METHODS Young (12-week-old) and aged (50-to-60-week-old) female C57BL/6 mice were used (n = 29 for each group). The rotator cuff was transected, and the proximal humerus was removed to induce degeneration of the rotator cuff muscles. The mice were euthanized 4 and 12 weeks after the procedure (referred to as RCT-4wk mice and RCT-12wk mice, respectively) and compared with the sham-treated mice. The supraspinatus muscles were collected for histology, Western blot analysis, and gene expression analyses. RESULTS There was a significant increase in fat tissue in aged RCT-4wk mice (P = .001) and aged RCT-12wk mice (P < .001) compared with sham-treated aged mice, and aged RCT-12wk mice had a significantly increased fat area ratio compared with aged RCT-4wk mice (P < .001). The fat area was significantly larger in both the aged RCT-4wk (P = .002) and RCT-12wk mice (P < .001) than in the corresponding young mice. Muscular fibrosis was significantly increased in aged RCT-12wk mice compared with aged sham-treated mice (P = .005) and young RCT-12wk mice (P = .016). There were also significant increases in the expression of perilipin and transcripts of adipogenic and fibrogenic differentiation markers in aged RCT mice compared with young RCT mice. CONCLUSION The present results show that aging is critically involved in the pathology of muscular fatty infiltration and fibrosis after RCT, and muscular degeneration progresses over time in aged mice. CLINICAL RELEVANCE Aging promotes the progression of muscle degeneration in a mouse RCT model. Furthermore, this study shows that muscle degeneration occurs in aged mice even without denervation and that the model described in the present study is a useful tool for studying the pathology of muscle degeneration.
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Affiliation(s)
- Yuhei Takada
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Noboru Matsumura
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.
| | - Hideyuki Shirasawa
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Masaki Yoda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, National Defense Medical College, Saitama, Japan
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5
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Musa SA, Lee DS, Abdel-Khalik SI, Yoda M. Experimental and Numerical Evaluation of the Thermal-Fluid Characteristics of the Helium-Cooled Modular Divertor with Multiple Jets Using a Reversed Heat Flux Approach. Fusion Science and Technology 2021. [DOI: 10.1080/15361055.2020.1867475] [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] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- S. A. Musa
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - D. S. Lee
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
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Okamori S, Ishii M, Asakura T, Suzuki S, Namkoong H, Kagawa S, Hegab AE, Yagi K, Kamata H, Kusumoto T, Ogawa T, Takahashi H, Yoda M, Horiuchi K, Hasegawa N, Fukunaga K. ADAM10 partially protects mice against influenza pneumonia by suppressing specific myeloid cell population. Am J Physiol Lung Cell Mol Physiol 2021; 321:L872-L884. [PMID: 34523355 DOI: 10.1152/ajplung.00619.2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The influenza virus infection poses a serious health threat worldwide. Myeloid cells play pivotal roles in regulating innate and adaptive immune defense. A disintegrin and metalloproteinase (ADAM) family of proteins contributes to various immune responses; however, the role of a disintegrin and metalloproteinase domain-containing protein 10 (ADAM10) in influenza virus infection remains largely unknown. Herein, we investigated its role, focusing on myeloid cells, during influenza virus infection in mice. ADAM10 gene (Adam10)flox/flox/Lyz2-Cre (Adam10ΔLyz2) and control Adam10flox/flox mice were intranasally infected with 200 plaque-forming units of influenza virus A/H1N1/PR8/34. Adam10ΔLyz2 mice exhibited a significantly higher mortality rate, stronger lung inflammation, and a higher virus titer in the lungs than control mice. Macrophages and inflammatory cytokines, such as TNF-α, IL-1β, and CCL2, were increased in bronchoalveolar lavage fluid from Adam10ΔLyz2 mice following infection. CD11b+Ly6G-F4/80+ myeloid cells, which had an inflammatory monocyte/macrophage-like phenotype, were significantly increased in the lungs of Adam10ΔLyz2 mice. Adoptive transfer experiments suggested that these cells likely contributed to the poorer prognosis in Adam10ΔLyz2 mice. Seven days after infection, CD11b+Ly6G-F4/80+ lung cells exhibited significantly higher arginase-1 expression levels in Adam10ΔLyz2 mice than in control mice, whereas an arginase-1 inhibitor improved the prognosis of Adam10ΔLyz2 mice. Enhanced granulocyte-macrophage colony-stimulating factor (GM-CSF)/GM-CSF receptor signaling likely contributed to this process. Collectively, these results indicate that myeloid ADAM10 protects against influenza virus pneumonia and may be a promising therapeutic target.
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Affiliation(s)
- Satoshi Okamori
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Japan Society of Promotion of Science, Tokyo, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shoji Suzuki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ho Namkoong
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shizuko Kagawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ahmed E Hegab
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Medical Education Center, School of Medicine, International University of Health and Welfare, Chiba, Japan
| | - Kazuma Yagi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tatsuya Kusumoto
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takunori Ogawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hayato Takahashi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Masaki Yoda
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Keisuke Horiuchi
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, National Defence Medical College, Saitama, Japan
| | - Naoki Hasegawa
- Center for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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Shirasawa H, Matsumura N, Yoda M, Okubo K, Shimoda M, Uezumi A, Matsumoto M, Nakamura M, Horiuchi K. Retinoic Acid Receptor Agonists Suppress Muscle Fatty Infiltration in Mice. Am J Sports Med 2021; 49:332-339. [PMID: 33428447 DOI: 10.1177/0363546520984122] [Citation(s) in RCA: 4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The infiltration of fat tissue into skeletal muscle, a condition referred to as muscle fatty infiltration or fatty degeneration, is regarded as an irreversible event that significantly compromises the motor function of skeletal muscle. PURPOSE To investigate the effect of retinoic acid receptor (RAR) agonists in suppressing the adipogenic differentiation of fibroadipogenic progenitors (FAPs) in vitro and fatty infiltration after rotator cuff tear in mice. STUDY DESIGN Controlled laboratory study. METHODS FAPs isolated from mouse skeletal muscle were cultured in adipogenic differentiation medium in the presence or absence of an RAR agonist. At the end of cell culture, adipogenic differentiation was evaluated by gene expression analysis and oil red O staining. A mouse model of fatty infiltration-which includes the resection of the rotator cuff, removal of the humeral head, and denervation the supraspinatus muscle-was used to induce fatty infiltration in the supraspinatus muscle. The mice were orally or intramuscularly administered with an RAR agonist after the surgery. Muscle fatty infiltration was evaluated by histology and gene expression analysis. RESULTS RAR agonists effectively inhibited the adipogenic differentiation of FAPs in vitro. Oral and intramuscular administration of RAR agonists suppressed the development of muscle fatty infiltration in the mice after rotator cuff tear. In accordance, we found a significant decrease in the number of intramuscular fat cells and suppressed expression in adipogenic markers. RAR agonists also increased the expression of the transcripts for collagens; however, an accumulation of collagenous tissues was not histologically evident in the present model. CONCLUSION Muscle fatty infiltration can be alleviated by RAR agonists through suppressing the adipogenic differentiation of FAPs. The results also suggest that RAR agonists are potential therapeutic agents for treating patients who are at risk of developing muscle fatty infiltration. The consequence of the increased expression of collagen transcripts by RAR agonists needs to be clarified. CLINICAL RELEVANCE RAR agonists can be used to prevent the development of muscle fatty infiltration after rotator cuff tear. Nevertheless, further studies are mandatory in a large animal model to examine the safety and efficacy of intramuscular injection of RAR agonists.
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Affiliation(s)
- Hideyuki Shirasawa
- Department of Orthopedic Surgery, School of Medicine, Keio University, Tokyo, Japan
| | - Noboru Matsumura
- Department of Orthopedic Surgery, School of Medicine, Keio University, Tokyo, Japan
| | - Masaki Yoda
- Laboratory of Cell and Tissue Biology, School of Medicine, Keio University, Tokyo, Japan
| | - Kazumasa Okubo
- Pharmacology, Pharmaceutical Research Department, Sato Pharmaceutical Co, Ltd, Tokyo, Japan
| | - Masayuki Shimoda
- Department of Pathology, School of Medicine, Keio University, Tokyo, Japan
| | - Akiyoshi Uezumi
- Department of Geriatric Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, School of Medicine, Keio University, Tokyo, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, School of Medicine, Keio University, Tokyo, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, School of Medicine, Keio University, Tokyo, Japan.,Department of Orthopedic Surgery, National Defense Medical College, Saitama, Japan
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Mizuno S, Yoda M, Kimura T, Shimoda M, Akiyama H, Chiba K, Nakamura M, Horiuchi K. ADAM10 is indispensable for longitudinal bone growth in mice. Bone 2020; 134:115273. [PMID: 32062003 DOI: 10.1016/j.bone.2020.115273] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/07/2020] [Accepted: 02/12/2020] [Indexed: 12/12/2022]
Abstract
Skeletal development is a highly sophisticated process in which the expression of a variety of growth factors, signaling molecules, and extracellular matrix proteins is spatially and temporally orchestrated. In the present study, we show that ADAM10, a transmembrane protease that is critically involved in the functional regulation of various membrane-bound molecules, plays an essential role in the longitudinal growth of long bones and in skeletal development. We found that mutant mice lacking ADAM10 in osteochondroprogenitors exhibited marked growth retardation and had shorter long bones than the control mice. Histomorphometric analysis revealed that the mutant mice had a shorter hypertrophic zone and that their hypertrophic chondrocytes were smaller in size than those of the control mice. Unexpectedly, we found that the mRNA expression of the chemokine CXCL12 and its receptor CXCR4 were significantly reduced in cartilage tissues lacking ADAM10. Further, exogenous supplementation of recombinant CXCL12 rescued the defect in the ADAM10-deficient growth plate in an ex vivo culture model. Taken together, our data show a previously unknown role for ADAM10 in skeletal development that involves its regulation of the CXCL12 and CXCR4 signaling pathway.
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Affiliation(s)
- Sakiko Mizuno
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Department of Orthopedics, Tokyo Dental College Ichikawa General Hospital, 5-11-13 Sugano, Ichikawa City, Chiba 272-8513, Japan.
| | - Masaki Yoda
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Tokuhiro Kimura
- Department of Diagnostic Pathology, Saiseikai Yokohama Tobu Hospital, 3-6-1 Shimosueyoshi, Tsurumi Ward, Yokohama, Kanagawa 230-8765, Japan
| | - Masayuki Shimoda
- Department of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University School of Medicine, 1-1 Yanagido, Gifu, Gifu 501-1194, Japan
| | - Kazuhiro Chiba
- Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan.
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9
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Suzuki S, Ishii M, Asakura T, Namkoong H, Okamori S, Yagi K, Kamata H, Kusumoto T, Kagawa S, Hegab AE, Yoda M, Horiuchi K, Hasegawa N, Betsuyaku T. ADAM17 protects against elastase-induced emphysema by suppressing CD62L + leukocyte infiltration in mice. Am J Physiol Lung Cell Mol Physiol 2020; 318:L1172-L1182. [PMID: 32130031 DOI: 10.1152/ajplung.00214.2019] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Pulmonary emphysema is a major manifestation of chronic obstructive pulmonary disease and is associated with chronic pulmonary inflammation caused by cigarette smoking, with contributions from immune cells such as neutrophils, macrophages, and lymphocytes. Although matrix metalloproteinases are well known to contribute to emphysema progression, the role of a disintegrin and metalloproteinase (ADAM) family proteins, other major metalloproteinases, in disease pathogenesis is largely unknown. ADAM17 is a major sheddase that cleaves various cell surface proteins, including CD62L, an adhesion molecule that plays a critical role in promoting the migration of immune cells to the site of inflammation. In the present study, we aimed to investigate the potential role of ADAM17 and CD62L in the development of elastase-induced emphysema. Control and Adam17flox/flox/Mx1-Cre (Adam17ΔMx1) mice (8-10 wk old) were intratracheally injected with 5 units of porcine pancreas elastase and monitored for 35 days after injection. Lung alveolar destruction was evaluated by analyzing the mean linear intercepts of lung tissue specimens and by histopathological examination. Mean linear intercepts data indicated that the degree of elastase-induced emphysema was significantly more severe in Adam17ΔMx1 mice. Furthermore, flow cytometry showed that CD62L+ neutrophil, CD62L+ macrophage, and CD62L+ B lymphocyte numbers were significantly increased in Adam17ΔMx1 mice. Moreover, the pharmacological depletion of CD62L+ cells with a CD62L-neutralizing antibody ameliorated the extent of emphysema in Adam17ΔMx1 mice. Collectively, these results suggest that ADAM17 possibly suppresses the progression of emphysema by proteolytically processing CD62L in immune cells and that ADAM17 and CD62L could be novel therapeutic targets for treating pulmonary emphysema.
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Affiliation(s)
- Shoji Suzuki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Japan Society of Promotion of Science, Tokyo, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Japan Society of Promotion of Science, Tokyo, Japan
| | - Ho Namkoong
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Okamori
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.,Japan Society of Promotion of Science, Tokyo, Japan
| | - Kazuma Yagi
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tatsuya Kusumoto
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shizuko Kagawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ahmed E Hegab
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masaki Yoda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Laboratory of Cell and Tissue Biology, Keio University School of Medicine, Tokyo, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan.,Department of Orthopedic Surgery, National Defense Medical College, Saitama, Japan
| | - Naoki Hasegawa
- Center for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan
| | - Tomoko Betsuyaku
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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10
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Lee DS, Musa SA, Abdel-Khalik SI, Yoda M. Thermal Hydraulics of Helium-Cooled Finger-Type Divertors at Higher Incident Heat Fluxes. Fusion Science and Technology 2019. [DOI: 10.1080/15361055.2019.1593008] [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] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- D. S. Lee
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, 771 Ferst Drive NW, Atlanta, Georgia 30332-0405
| | - S. A. Musa
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, 771 Ferst Drive NW, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, 771 Ferst Drive NW, Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, 771 Ferst Drive NW, Atlanta, Georgia 30332-0405
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11
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Musa SA, Lee DS, Abdel-Khalik SI, Yoda M. An Experimental Reversed Heat Flux Investigation of the Helium-Cooled Modular Divertor with Multiple Jets. Fusion Science and Technology 2019. [DOI: 10.1080/15361055.2019.1643683] [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] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- S. A. Musa
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - D. S. Lee
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
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12
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Matsuo K, Ji S, Miya A, Yoda M, Hamada Y, Tanaka T, Takao-Kawabata R, Kawaai K, Kuroda Y, Shibata S. Innervation of the tibial epiphysis through the intercondylar foramen. Bone 2019; 120:297-304. [PMID: 30439572 DOI: 10.1016/j.bone.2018.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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] [Received: 05/16/2018] [Revised: 11/09/2018] [Accepted: 11/12/2018] [Indexed: 02/07/2023]
Abstract
The periosteum and mineralized bone are innervated by nerves that sense pain. These include both myelinated and unmyelinated neurons with either free nerve endings or bearing nociceptors. Parasympathetic and sympathetic autonomic nerves also innervate bone. However, little is known about the route sensory nerves take leaving the epiphyses of long bones at the adult knee joint. Here, we used transgenic mice that express fluorescent Venus protein in Schwann cells (Sox10-Venus mice) to visualize myelinated and unmyelinated nerves in the tibial epiphysis. Immunofluorescence to detect a pan-neuronal marker and the sensory neuron markers calcitonin gene-related peptide (CGRP) and tropomyosin receptor kinase A (TrkA) also revealed Schwann cell-associated sensory neurons. Foramina in the intercondylar area of the tibia were conserved between rodents and primates. Venus-labeled fibers were detected within bone marrow of the proximal epiphysis, exited through foramina along with blood vessels in the intercondylar area of the tibia, and joined Venus-labeled fibers of the synovial membrane and meniscus. These data suggest that innervation of the subchondral plate and trabecular bone within the tibial epiphysis carries pain signals from the knee joint to the brain through intercondylar foramina.
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Affiliation(s)
- Koichi Matsuo
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
| | - Shuting Ji
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Ayako Miya
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Masaki Yoda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Yuzuru Hamada
- Morphology Section, Primate Research Institute, Kyoto University, 41 Kanrin, Inuyama 484-8506, Japan
| | - Tomoya Tanaka
- Pharmaceuticals Research Center, Asahi Kasei Pharma Corporation, 632-1 Mifuku, Izunokuni, Shizuoka 410-2321, Japan
| | - Ryoko Takao-Kawabata
- Pharmaceuticals Research Center, Asahi Kasei Pharma Corporation, 632-1 Mifuku, Izunokuni, Shizuoka 410-2321, Japan
| | - Katsuhiro Kawaai
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Yukiko Kuroda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Shinsuke Shibata
- Electron Microscope Laboratory, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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13
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Edamoto M, Kuroda Y, Yoda M, Kawaai K, Matsuo K. Trans-pairing between osteoclasts and osteoblasts shapes the cranial base during development. Sci Rep 2019; 9:1956. [PMID: 30760811 PMCID: PMC6374512 DOI: 10.1038/s41598-018-38471-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 12/27/2018] [Indexed: 12/13/2022] Open
Abstract
Bone growth is linked to expansion of nearby organs, as is the case for the cranial base and the brain. Here, we focused on development of the mouse clivus, a sloping surface of the basioccipital bone, to define mechanisms underlying morphological changes in bone in response to brain enlargement. Histological analysis indicated that both endocranial and ectocranial cortical bone layers in the basioccipital carry the osteoclast surface dorsally and the osteoblast surface ventrally. Finite element analysis of mechanical stress on the clivus revealed that compressive and tensile stresses appeared mainly on respective dorsal and ventral surfaces of the basioccipital bone. Osteoclastic bone resorption occurred primarily in the compression area, whereas areas of bone formation largely coincided with the tension area. These data collectively suggest that compressive and tensile stresses govern respective localization of osteoclasts and osteoblasts. Developmental analysis of the basioccipital bone revealed the clivus to be angled in early postnatal wild-type mice, whereas its slope was less prominent in Tnfsf11−/− mice, which lack osteoclasts. We propose that osteoclast-osteoblast “trans-pairing” across cortical bone is primarily induced by mechanical stress from growing organs and regulates shape and size of bones that encase the brain.
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Affiliation(s)
- Mio Edamoto
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Yukiko Kuroda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Masaki Yoda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Katsuhiro Kawaai
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Koichi Matsuo
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, Tokyo, 160-8582, Japan.
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14
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Ota S, Kurokouchi K, Takahashi S, Yoda M, Yamamoto R, Sakai T. Relationship between patellar mobility and patellofemoral joint cartilage degeneration after anterior cruciate ligament reconstruction. Nagoya J Med Sci 2018; 79:487-495. [PMID: 29238105 PMCID: PMC5719208 DOI: 10.18999/nagjms.79.4.487] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Patellofemoral cartilage degeneration is a potential complication of anterior cruciate ligament reconstruction (ACLR) surgery. Hypomobility of the patella in the coronal plane is often observed after ACLR. Few studies, however, have examined the relationship between cartilage degeneration in the patellofemoral joint and mobility after ACLR. The present study investigated 1) the coronal mobility of the patella after ACLR, 2) the relationship between patellar mobility and cartilage degeneration of the patellofemoral joint, and 3) the relationship between patellar mobility and knee joint function after ACLR. Forty patients who underwent medial hamstring-based ACLR participated in the study. Lateral and medial patellar displacements were assessed with a modified patellofemoral arthrometer, and the absolute values of the displacements were normalized to patient height. The International Cartilage Repair Society (ICRS) cartilage injury classification of the patellar and femoral (trochlear) surfaces, and the Lysholm Knee Scoring Scale were used to evaluate knee function. Lateral and medial patellar displacements were reduced compared with the non-operated knee at the second-look arthroscopy and bone staple extraction operation (second operation; 24.4 ± 7.9 months after ACLR, P<0.01). The ICRS grades of the patellofemoral joint (patella and trochlea) were significantly worse than those pre-ACLR. Neither lateral nor medial patellar mobility, however, were significantly correlated with the ICRS grade or the Lysholm score. Although patellar mobility at approximately 2 years after ACLR was decreased compared to the non-operated knee, small displacement of the patella was not related to cartilage degeneration or knee joint function at the time of the second operation.
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Affiliation(s)
- Susumu Ota
- Department of Rehabilitation and Care, Seijoh University, Tokai, Japan
| | | | - Shigeo Takahashi
- Orthopedics and Arthroscopy Center, Mitsubishi Nagoya Hospital, Nagoya, Japan
| | - Masaki Yoda
- Orthopedics and Arthroscopy Center, Mitsubishi Nagoya Hospital, Nagoya, Japan
| | - Ryuichiro Yamamoto
- Orthopedics and Arthroscopy Center, Mitsubishi Nagoya Hospital, Nagoya, Japan
| | - Tadahiro Sakai
- Department of Orthopedic Surgery, Nagoya University School of Medicine, Nagoya, Japan
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15
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Yuasa K, Okubo K, Yoda M, Otsu K, Ishii Y, Nakamura M, Itoh Y, Horiuchi K. Targeted ablation of p38α MAPK suppresses denervation-induced muscle atrophy. Sci Rep 2018; 8:9037. [PMID: 29899565 PMCID: PMC5998077 DOI: 10.1038/s41598-018-26632-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 05/16/2018] [Indexed: 12/20/2022] Open
Abstract
The loss of skeletal muscle mass is a major cause of falls and fractures in the elderly, leading to compromised independence and a decrease in the quality of life. However, only a few therapeutic interventions leading to marginal clinical benefits in patients with this condition are currently available. Therefore, the demand to further understand the pathology of muscle atrophy and establish a treatment modality for patients with muscle atrophy is significant. p38α mitogen-activated protein kinase (p38α MAPK) is a ubiquitous signaling molecule that is implicated in various cellular functions, including cell proliferation, differentiation, and senescence. In the present study, we generated a mutant line in which p38α MAPK is specifically abrogated in muscle tissues. Compared with the control mice, these mutant mice are significantly resistant to denervation-induced muscle atrophy, suggesting that p38α MAPK positively regulates muscle atrophy. We also identified CAMK2B as a potential downstream target of p38α MAPK and found that the pharmacological inhibition of CAMK2B activity suppresses denervation-induced muscle atrophy. Altogether, our findings identify p38α MAPK as a novel regulator of muscle atrophy and suggest that the suppression of intracellular signaling mediated by p38α MAPK serves as a potential target for the treatment of muscle atrophy.
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Affiliation(s)
- Kazuki Yuasa
- Pharmacological R&D Section, Pharmaceutical Research Department, Sato Pharmaceutical Co., Ltd., 6-8-5 Higashi-ohi, Shinagawa, Tokyo, 140-0011, Japan
| | - Kazumasa Okubo
- Pharmacological R&D Section, Pharmaceutical Research Department, Sato Pharmaceutical Co., Ltd., 6-8-5 Higashi-ohi, Shinagawa, Tokyo, 140-0011, Japan
| | - Masaki Yoda
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.,Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Kinya Otsu
- The School of Cardiovascular Medicine and Sciences, King's College London, Strand, London, WC2R 2LS, UK
| | - Yasuyuki Ishii
- Pharmacological R&D Section, Pharmaceutical Research Department, Sato Pharmaceutical Co., Ltd., 6-8-5 Higashi-ohi, Shinagawa, Tokyo, 140-0011, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Yoshiki Itoh
- Drug Discovery Research Department, Sato Pharmaceutical Co., Ltd., 6-8-5 Higashi-ohi, Shinagawa, Tokyo, 140-0011, Japan.
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan. .,Department of Orthopedic Surgery, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama, 359-8513, Japan.
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16
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Mizuno S, Yoda M, Shimoda M, Chiba K, Nakamura M, Horiuchi K. Inhibition of ADAM10 in satellite cells accelerates muscle regeneration following muscle injury. J Orthop Res 2018; 36:2259-2265. [PMID: 29464750 DOI: 10.1002/jor.23878] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 02/15/2018] [Indexed: 02/04/2023]
Abstract
Muscle injury is one of the most common orthopedic and sports disorders. For severe cases, surgical repair may be indicated; however, other than immobilization and the administration of anti-inflammatory drugs there is currently no effective conservative treatment for this condition. Satellite cells (SCs) are muscle-specific stem cells and are indispensable for muscle regeneration after muscle injury. SCs are activated upon muscle injury to proliferate and differentiate into myoblasts, which subsequently fuse into myofibers and regenerate the damaged muscle. We have previously shown that ADAM10, a membrane-anchored proteolytic enzyme, is essential for the maintenance of SC quiescence by activating the Notch signaling pathway in SCs. Because suppression of ADAM10 activity in SCs can activate SC differentiation, we asked whether inactivation of ADAM10 in SCs after muscle injury could enhance muscle regeneration. Using Adam10 conditional knockout mice, in which ADAM10 activity can specifically be suppressed in SCs, we found that partial inactivation of ADAM10 accelerates muscle regeneration after muscle injury. Nearly identical results were obtained by the administration of GI254023X, a selective ADAM10 inhibitor. The findings of the present study thus indicate that transient enhancement of SC differentiation after muscle injury expedites muscle regeneration and that ADAM10 can be a potential molecular target in treating muscle injuries. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res.
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Affiliation(s)
- Sakiko Mizuno
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Orthopedics, Tokyo Dental College Ichikawa General Hospital, 5-11-13 Sugano, Ichikawa City, Chiba, 272-8513, Japan
| | - Masaki Yoda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masayuki Shimoda
- Department of Pathology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazuhiro Chiba
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama, 359-8513, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
- Department of Orthopedic Surgery, National Defense Medical College, Namiki 3-2, Tokorozawa, Saitama, 359-8513, Japan
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17
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Zhao B, Musa SA, Abdel-Khalik SI, Yoda M. Optimization of Multiple Jet Arrays for Helium-Cooled Finger-Type Divertors. Fusion Science and Technology 2017. [DOI: 10.1080/15361055.2017.1333828] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- B. Zhao
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. A. Musa
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
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18
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Musa SA, Zhao B, Abdel-Khalik SI, Yoda M. Reversed Heat Flux Study of Impinging-Jet Water Cooling for Helium-Cooled Finger-Type Divertors. Fusion Science and Technology 2017. [DOI: 10.1080/15361055.2017.1333829] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- S. A. Musa
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - B. Zhao
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
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19
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Zhao B, Musa SA, Abdel-Khalik SI, Yoda M. An Experimental Investigation of the Effect of Jet-to-Surface Distance on the Thermal Hydraulics of the Helium-Cooled Modular Divertor with Multiple Jets. Fusion Science and Technology 2017. [DOI: 10.1080/15361055.2017.1333827] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- B. Zhao
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. A. Musa
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
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20
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Affiliation(s)
- M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
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21
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Durbin SG, Yoda M, Abdel-Khalik SI, Sadowski DL. Turbulent Liquid Sheets for Protecting IFE Reactor Chamber First Walls. Fusion Science and Technology 2017. [DOI: 10.13182/fst03-a352] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. G. Durbin
- G. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - M. Yoda
- G. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - S. I. Abdel-Khalik
- G. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - D. L. Sadowski
- G. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
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22
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Shin S, Abdelall F, Juric D, Abdel-Khalik SI, Yoda M, Sadowski D. Fluid Dynamic Aspects of the Porous Wetted Wall Protection Scheme for Inertial Fusion Energy Reactors. Fusion Science and Technology 2017. [DOI: 10.13182/fst03-a280] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Shin
- Georgia Institute of Technology, George W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - F. Abdelall
- Georgia Institute of Technology, George W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - D. Juric
- Georgia Institute of Technology, George W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, George W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, George W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - D. Sadowski
- Georgia Institute of Technology, George W. Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
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23
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Meier WR, Raffray AR, Abdel-Khalik SI, Kulcinski GL, Latowski JF, Najmabadi F, Olson CL, Peterson PF, Ying A, Yoda M. IFE Chamber Technology – Status and Future Challenges. Fusion Science and Technology 2017. [DOI: 10.13182/fst03-a306] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- W. R. Meier
- Lawrence Livermore National Laboratory, P.O. Box 808, L-641, Livermore, CA 94551 (925) 422-8536
| | | | | | | | - J. F. Latowski
- Lawrence Livermore National Laboratory, P.O. Box 808, L-641, Livermore, CA 94551 (925) 422-8536
| | | | | | | | - A. Ying
- University of California, Los Angeles, CA
| | - M. Yoda
- Georgia Institute of Technology, Atlanta, GA
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24
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Shin S, Abdel-Khalik* SI, Juric D, Yoda M. Effects of Surface Evaporation and Condensation on the Dynamics of Thin Liquid Films for the Porous Wetted Wall Protection Scheme in IFE Reactors. Fusion Science and Technology 2017. [DOI: 10.13182/fst03-a320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Seungwon Shin
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA, Phone: (404) 894-3719 FAX: (404) 894-8496
| | - S. I. Abdel-Khalik*
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA, Phone: (404) 894-3719 FAX: (404) 894-8496
| | - Damir Juric
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA, Phone: (404) 894-3719 FAX: (404) 894-8496
| | - M. Yoda
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA, Phone: (404) 894-3719 FAX: (404) 894-8496
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25
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Rader JD, Mills BH, Sadowski DL, Yoda M, Abdel-Khalik SI. Experimental and Numerical Investigation of Thermal Performance of Gas-Cooled Jet-Impingement Finger-Type Divertor Concept. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-306] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. D. Rader
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
| | - B. H. Mills
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
| | - D. L. Sadowski
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
| | - M. Yoda
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
| | - S. I. Abdel-Khalik
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
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Abdel-Khalik SI, Crosatti L, Sadowski DL, Shin S, Weathers JB, Yoda M. Thermal-Hydraulic Studies in Support of the ARIES-CS T-Tube Divertor Design. Fusion Science and Technology 2017. [DOI: 10.13182/fst08-a1907] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. I. Abdel-Khalik
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0405
| | - L. Crosatti
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0405
| | - D. L. Sadowski
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0405
| | - S. Shin
- Hongik University, Department of Mechanical and System Design Engineering, Seoul 121-791, Korea
| | - J. B. Weathers
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0405
| | - M. Yoda
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0405
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27
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Abdel-Khalik SI, Yoda M. An Overview of Georgia Tech Studies on the Fluid Dynamics Aspects of Liquid Protection Schemes for Fusion Reactors. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. I. Abdel-Khalik
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
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28
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Najmabadi F, Raffray AR, Abdel-Khalik SI, Bromberg L, Crosatti L, El-Guebaly L, Garabedian PR, Grossman AA, Henderson D, Ibrahim A, Ihli T, Kaiser TB, Kiedrowski B, Ku LP, Lyon JF, Maingi R, Malang S, Martin C, Mau TK, Merrill B, Moore RL, Peipert RJ, Petti DA, Sadowski DL, Sawan M, Schultz JH, Slaybaugh R, Slattery KT, Sviatoslavsky G, Turnbull A, Waganer LM, Wang XR, Weathers JB, Wilson P, Waldrop JC, Yoda M, Zarnstorffh M. The ARIES-CS Compact Stellarator Fusion Power Plant. Fusion Science and Technology 2017. [DOI: 10.13182/fst54-655] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- F. Najmabadi
- Center for Energy Research University of California, San Diego, MC 0417, La Jolla, California 92093-0417
| | - A. R. Raffray
- Center for Energy Research University of California, San Diego, MC 0417, La Jolla, California 92093-0417
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29
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Mills BH, Rader JD, Sadowski DL, Abdel-Khalik SI, Yoda M. Experimental Investigation of Fin Enhancement for Gas-Cooled Divertor Concepts. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12350] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- B. H. Mills
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - J. D. Rader
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - D. L. Sadowski
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - S. I. Abdel-Khalik
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
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30
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Crosatti L, Sadowski DL, Abdel-Khalik SI, Yoda M. Thermal Performance of a Prototypical Gas-Cooled T-Tube Divertor Module with Single-Sided Heating. Fusion Science and Technology 2017. [DOI: 10.13182/fst09-a8883] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- L. Crosatti
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - D. L. Sadowski
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - S. I. Abdel-Khalik
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
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31
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Hageman MD, Sadowski DL, Yoda M, Abdel-Khalik SI. Experimental Studies of the Thermal Performance of Gas-Cooled Plate-Type Divertors. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-232] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. D. Hageman
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA USA 30332-0405
| | - D. L. Sadowski
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA USA 30332-0405
| | - M. Yoda
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA USA 30332-0405
| | - S. I. Abdel-Khalik
- G. W. Woodruff School of Mechanical Eng., Georgia Institute of Technology, Atlanta, GA USA 30332-0405
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32
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Gayton E, Crosatti L, Sadowski DL, Abdel-Khalik SI, Yoda M, Malang S. Experimental and Numerical Investigation of the Thermal Performance of the Gas-Cooled Divertor Plate Concept. Fusion Science and Technology 2017. [DOI: 10.13182/fst09-31] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- E. Gayton
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - L. Crosatti
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - D. L. Sadowski
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - S. I. Abdel-Khalik
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - S. Malang
- Fiederweg 3, Linkenheim-Hochstetten D-76351 Germany
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33
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Najmabadi F, Raffray AR, Abdel-Khalik SI, Bromberg L, El-Guebaly LA, Goodin D, Haynes D, Latkowski J, Meier W, Moore R, Neff S, Olson CL, Perkins J, Petti D, Petzoldt R, Rose DV, Sharp WM, Sharpe P, Tillack MS, Waganer L, Welch D, Yoda M, Yu SS, Zaghloul M. Operational Windows for Dry-Wall and Wetted-Wall IFE Chambers. Fusion Science and Technology 2017. [DOI: 10.13182/fst04-a580] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- F. Najmabadi
- University of California, San Diego, Department of Electrical and Computer Engineering and Center for Energy Research, La Jolla, California 92093
| | - A. R. Raffray
- University of California, San Diego, Mechanical and Aerospace Engineering Department and Center for Energy Research, La Jolla, California 92093
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - L. Bromberg
- Georgia Institute of Technology, Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - L. A. El-Guebaly
- Georgia Institute of Technology, Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - D. Goodin
- General Atomics, San Diego, California 92186
| | - D. Haynes
- Georgia Institute of Technology, Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - J. Latkowski
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - W. Meier
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - R. Moore
- Idaho National Engineering and Environmental Laboratory, Fusion Safety Program, EROB E-3 MS 3815, Idaho Falls, Idaho 83415-3815
| | - S. Neff
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - C. L. Olson
- Sandia National Laboratories, Albuquerque, New Mexico 87185
| | - J. Perkins
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - D. Petti
- Idaho National Engineering and Environmental Laboratory, Fusion Safety Program, EROB E-3 MS 3815, Idaho Falls, Idaho 83415-3815
| | - R. Petzoldt
- General Atomics, San Diego, California 92186
| | - D. V. Rose
- Mission Research Corporation, Albuquerque, New Mexico 87110
| | - W. M. Sharp
- Lawrence Livermore National Laboratory, Livermore, California 94550
| | - P. Sharpe
- Idaho National Engineering and Environmental Laboratory, Fusion Safety Program, EROB E-3 MS 3815, Idaho Falls, Idaho 83415-3815
| | - M. S. Tillack
- University of California, San Diego, Mechanical and Aerospace Engineering Department and Center for Energy Research, La Jolla, California 92093
| | - L. Waganer
- Boeing High Energy Systems, St. Louis, Missouri 63166
| | - D.R. Welch
- Mission Research Corporation, Albuquerque, New Mexico 87110
| | - M. Yoda
- Georgia Institute of Technology, Woodruff School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - S. S. Yu
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - M. Zaghloul
- University of California, San Diego, Mechanical and Aerospace Engineering Department and Center for Energy Research, La Jolla, California 92093
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34
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Durbin SG, Yoda M, Abdel-Khalik SI, Sadowski DL, Koehler TP. Assessment and Control of Primary Turbulent Breakup of Thick Liquid Sheets in IFE Reactor Cavities: The “Hydrodynamic Source Term”. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a595] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. G. Durbin
- Georgia Institute of Technology, G. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - D. L. Sadowski
- Georgia Institute of Technology, G. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - T. P. Koehler
- Georgia Institute of Technology, G. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
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35
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Raffray AR, Abdel-Khalik SI, Haynes D, Najmabadi F, Sharpe P, Yoda M, Zaghloul M. Thermo Fluid Dynamics and Chamber Aerosol Behavior for Thin Liquid Wall under IFE Cyclic Operation. Fusion Science and Technology 2017. [DOI: 10.13182/fst04-a582] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. R. Raffray
- University of California, San Diego, Mechanical and Aerospace Engineering Department and Center for Energy Research, EBU-II, Room 460, La Jolla, California 92093-0417
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - D. Haynes
- University of Wisconsin, Fusion Technology Institute, 1500 Engineering Drive, Madison, Wisconsin 53706-1687
| | - F. Najmabadi
- University of California, San Diego, Center for Energy Research, EBU-II, Room 460, La Jolla, California 92093-0417
| | - P. Sharpe
- Idaho National Engineering and Environmental Laboratory, Fusion Safety Program, EROB E-3 MS 3815, Idaho Falls, Idaho 83415-3815
| | - M. Yoda
- Georgia Institute of Technology, School of Mechanical Engineering, Atlanta, Georgia 30332-0405
| | - M. Zaghloul
- University of California, San Diego, Center for Energy Research, EBU-II, Room 460, La Jolla, California 92093-0417
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36
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Yoda M, Abdel-Khalik SI, Sadowski DL, Mills BH, Rader JD. Experimental Evaluation of the Thermal Hydraulics of Helium-Cooled Divertors. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-792] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - D. L. Sadowski
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - B. H. Mills
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - J. D. Rader
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
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37
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Kessel CE, Tillack MS, Najmabadi F, Poli FM, Ghantous K, Gorelenkov N, Wang XR, Navaei D, Toudeshki HH, Koehly C, EL-Guebaly L, Blanchard JP, Martin CJ, Mynsburge L, Humrickhouse P, Rensink ME, Rognlien TD, Yoda M, Abdel-Khalik SI, Hageman MD, MILLS BH, Rader JD, Sadowski DL, Snyder PB, John HST, Turnbull AD, Waganer LM, MALANG S, Rowcliffe AF. The ARIES Advanced and Conservative Tokamak Power Plant Study. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-794] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C. E. Kessel
- Princeton Plasma Physics Laboratory, Princeton, New Jersey
| | | | - F. Najmabadi
- Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - F. M. Poli
- Princeton Plasma Physics Laboratory, Princeton, New Jersey
| | - K. Ghantous
- Princeton Plasma Physics Laboratory, Princeton, New Jersey
| | - N. Gorelenkov
- Princeton Plasma Physics Laboratory, Princeton, New Jersey
| | - X. R. Wang
- University of California, San Diego, California
| | - D. Navaei
- University of California, San Diego, California
| | | | - C. Koehly
- Karlsruhe Institute of Technology, Karlsruhe, Germany
| | | | | | | | | | | | - M. E. Rensink
- Lawrence Livermore National Laboratory, Livermore, California
| | - T. D. Rognlien
- Lawrence Livermore National Laboratory, Livermore, California
| | - M. Yoda
- Georgia Institute of Technology, Atlanta, Georgia
| | | | | | - B. H. MILLS
- Georgia Institute of Technology, Atlanta, Georgia
| | - J. D. Rader
- Georgia Institute of Technology, Atlanta, Georgia
| | | | | | | | | | | | - S. MALANG
- jFusion Nuclear Technology Consulting, Fliederweg 3, D 76351 Linkenheim-Hochstetten, Germany
| | - A. F. Rowcliffe
- kRetired, Oak Ridge National Laboratory, Oak Ridge, Tennessee
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38
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Mills BH, Rader JD, Sadowski DL, Yoda M, Abdel-Khalik SI. Dynamically Similar Studies of the Thermal Performance of Helium-Cooled Finger-Type Divertors with and Without Fins. Fusion Science and Technology 2017. [DOI: 10.13182/fst12-485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- B. H. Mills
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - J. D. Rader
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - D. L. Sadowski
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - M. Yoda
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
| | - S. I. Abdel-Khalik
- Georgia Institute of Technology, G. W. Woodruff School of Mechanical Engineering Atlanta, Georgia 30332-0405
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39
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Rader JD, Mills BH, Sadowski DL, Yoda M, Abdel-Khalik SI. Verification of Thermal Performance Predictions of Prototypical Multi-Jet Impingement Helium-Cooled Divertor Module. Fusion Science and Technology 2017. [DOI: 10.13182/fst12-544] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. D. Rader
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - B. H. Mills
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - D. L. Sadowski
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - S. I. Abdel-Khalik
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
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40
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Rader JD, Mills BH, Sadowski DL, Yoda M, Abdel-Khalik SI. Optimization of Pin-Fin Arrays for Helium-Cooled Finger-Type Divertor. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a18096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. D. Rader
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - B. H. Mills
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - D. L. Sadowski
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
| | - S. I. Abdel-Khalik
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA
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41
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Shirasawa H, Matsumura N, Shimoda M, Oki S, Yoda M, Tohmonda T, Kanai Y, Matsumoto M, Nakamura M, Horiuchi K. Inhibition of PDGFR signaling prevents muscular fatty infiltration after rotator cuff tear in mice. Sci Rep 2017; 7:41552. [PMID: 28139720 PMCID: PMC5282512 DOI: 10.1038/srep41552] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 09/01/2016] [Accepted: 12/21/2016] [Indexed: 12/15/2022] Open
Abstract
Fatty infiltration in muscle is often observed in patients with sizable rotator cuff tear (RCT) and is thought to be an irreversible event that significantly compromises muscle plasticity and contraction strength. These changes in the mechanical properties of the affected muscle render surgical repair of RCT highly formidable. Therefore, it is important to learn more about the pathology of fatty infiltration to prevent this undesired condition. In the present study, we aimed to generate a mouse model that can reliably recapitulate some of the important characteristics of muscular fatty infiltration after RCT in humans. We found that fatty infiltration can be efficiently induced by a combination of the following procedures: denervation of the suprascapular nerve, transection of the rotator cuff tendon, and resection of the humeral head. Using this model, we found that platelet-derived growth factor receptor-α (PDGFRα)-positive mesenchymal stem cells are induced after this intervention and that inhibition of PDGFR signaling by imatinib treatment can significantly suppress fatty infiltration. Taken together, the present study presents a reliable fatty infiltration mouse model and suggests a key role for PDGFRα-positive mesenchymal stem cells in the process of fatty infiltration after RCT in humans.
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Affiliation(s)
- Hideyuki Shirasawa
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Noboru Matsumura
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masayuki Shimoda
- Department of Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Satoshi Oki
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masaki Yoda
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Takahide Tohmonda
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yae Kanai
- Department of Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, and Keio University School of Medicine, Tokyo 160-8582, Japan
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42
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Takahashi S, Kurokouchi K, Yoda M, Yamamoto R, Nakashima M. Safe needle insertion points of FAST-FIX 360. Asia Pac J Sports Med Arthrosc Rehabil Technol 2016. [DOI: 10.1016/j.asmart.2016.07.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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43
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Hirozane T, Tohmonda T, Yoda M, Shimoda M, Kanai Y, Matsumoto M, Morioka H, Nakamura M, Horiuchi K. Conditional abrogation of Atm in osteoclasts extends osteoclast lifespan and results in reduced bone mass. Sci Rep 2016; 6:34426. [PMID: 27677594 PMCID: PMC5039636 DOI: 10.1038/srep34426] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 09/13/2016] [Indexed: 01/06/2023] Open
Abstract
Ataxia-telangiectasia mutated (ATM) kinase is a central component involved in the signal transduction of the DNA damage response (DDR) and thus plays a critical role in the maintenance of genomic integrity. Although the primary functions of ATM are associated with the DDR, emerging data suggest that ATM has many additional roles that are not directly related to the DDR, including the regulation of oxidative stress signaling, insulin sensitivity, mitochondrial homeostasis, and lymphocyte development. Patients and mice lacking ATM exhibit growth retardation and lower bone mass; however, the mechanisms underlying the skeletal defects are not fully understood. In the present study, we generated mutant mice in which ATM is specifically inactivated in osteoclasts. The mutant mice did not exhibit apparent developmental defects but showed reduced bone mass due to increased osteoclastic bone resorption. Osteoclasts lacking ATM were more resistant to apoptosis and showed a prolonged lifespan compared to the controls. Notably, the inactivation of ATM in osteoclasts resulted in enhanced NF-κB signaling and an increase in the expression of NF-κB-targeted genes. The present study reveals a novel function for ATM in regulating bone metabolism by suppressing the lifespan of osteoclasts and osteoclast-mediated bone resorption.
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Affiliation(s)
- Toru Hirozane
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan.,Japan Society for the Promotion of Science, Tokyo 102-8472, Japan
| | - Takahide Tohmonda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan.,Department of Anti-Aging Orthopedic Research, Keio University School of Medicine, Tokyo, Japan
| | - Masaki Yoda
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan.,Department of Anti-Aging Orthopedic Research, Keio University School of Medicine, Tokyo, Japan
| | - Masayuki Shimoda
- Department of Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yae Kanai
- Department of Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hideo Morioka
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan.,Department of Anti-Aging Orthopedic Research, Keio University School of Medicine, Tokyo, Japan
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44
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Oki S, Shirasawa H, Yoda M, Matsumura N, Tohmonda T, Yuasa K, Nakamura M, Matsumoto M, Horiuchi K. Generation and characterization of a novel shoulder contracture mouse model. J Orthop Res 2015; 33:1732-8. [PMID: 26014262 DOI: 10.1002/jor.22943] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 11/07/2014] [Accepted: 05/08/2015] [Indexed: 02/04/2023]
Abstract
Frozen shoulder is a relatively common disorder that leads to severe pain and stiffness in the shoulder joint. Although this disorder is self-limiting in nature, the symptoms often persist for years, resulting in severe disability. Recent studies using human specimens and animal models have shown distinct changes in the gene expression patterns in frozen shoulder tissue, indicating that novel therapeutic intervention could be achieved by controlling the genes that are potentially involved in the development of frozen shoulder. To achieve this goal, it is imperative to develop a reliable animal joint contracture model in which gene expression can be manipulated by gene targeting and transgenic technologies. Here, we describe a novel shoulder contracture mouse model. We found that this model mimics the clinical presentation of human frozen shoulder and recapitulates the changes in the gene expression pattern and the histology of frozen shoulder and joint contracture in humans and other larger animal models. The model is highly reproducible, without any major complications. Therefore, the present model may serve as a useful tool for investigating frozen shoulder etiology and for identifying its potential target genes.
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Affiliation(s)
- Satoshi Oki
- Department of Orthopedic Surgery, Keio University School of Medicine, city, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hideyuki Shirasawa
- Department of Orthopedic Surgery, Keio University School of Medicine, city, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masaki Yoda
- Department of Anti-Aging Orthopedic Research, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Noboru Matsumura
- Department of Orthopedic Surgery, Keio University School of Medicine, city, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takahide Tohmonda
- Department of Anti-Aging Orthopedic Research, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Kazuki Yuasa
- Sato Pharmaceutical Corporation, Tokyo, 107-0051, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, city, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, city, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, Keio University School of Medicine, city, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Anti-Aging Orthopedic Research, Keio University School of Medicine, Tokyo, 160-8582, Japan
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Mizuno S, Yoda M, Shimoda M, Tohmonda T, Okada Y, Toyama Y, Takeda S, Nakamura M, Matsumoto M, Horiuchi K. A Disintegrin and Metalloprotease 10 (ADAM10) Is Indispensable for Maintenance of the Muscle Satellite Cell Pool. J Biol Chem 2015; 290:28456-28464. [PMID: 26453297 DOI: 10.1074/jbc.m115.653477] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Indexed: 12/20/2022] Open
Abstract
Satellite cells (SCs) are muscle-specific stem cells that are essential for the regeneration of damaged muscles. Although SCs have a robust capacity to regenerate myofibers, the number of SCs decreases with aging, leading to insufficient recovery after muscle injury. We herein show that ADAM10 (a disintegrin and metalloprotease 10), a membrane-bound proteolytic enzyme with a critical role in Notch processing (S2 cleavage), is essential for the maintenance of SC quiescence. We generated mutant mice in which ADAM10 in SCs can be conditionally abrogated by tamoxifen injection. Tamoxifen-treated mutant mice did not show any apparent defects and grew normally under unchallenged conditions. However, these mice showed a nearly complete loss of muscle regeneration after chemically induced muscle injury. In situ hybridization and flow cytometric analyses revealed that the mutant mice had significantly less SCs compared with wild type controls. Of note, we found that inactivation of ADAM10 in SCs severely compromised Notch signaling and led to dysregulated myogenic differentiation, ultimately resulting in deprivation of the SC pool in vivo. Taken together, the present findings underscore the role of ADAM10 as an indispensable component of Notch signaling in SCs and for maintaining the SC pool.
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Affiliation(s)
- Sakiko Mizuno
- Departments of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masaki Yoda
- Anti-aging Orthopedic Research, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masayuki Shimoda
- Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Takahide Tohmonda
- Anti-aging Orthopedic Research, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yasunori Okada
- Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yoshiaki Toyama
- Departments of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Shin'ichi Takeda
- Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8502, Japan
| | - Masaya Nakamura
- Departments of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Morio Matsumoto
- Departments of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Keisuke Horiuchi
- Departments of Orthopedic Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan; Anti-aging Orthopedic Research, Keio University School of Medicine, Tokyo 160-8582, Japan.
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Zhao B, Mills BH, Abdel-Khali SI, Yoda M. A Numerical Investigation of the Thermal-Hydraulics of the Helium-Cooled Modular Divertor with Multiple Jets. Fusion Science and Technology 2015. [DOI: 10.13182/fst15-122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- B. Zhao
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - B. H. Mills
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - S. I. Abdel-Khali
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
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Mills BH, Zhao B, Abdel-Khali SI, Yoda M. An Experimental Study of the Helium-Cooled Modular Divertor with Multiple Jets at Nearly Prototypical Conditions. Fusion Science and Technology 2015. [DOI: 10.13182/fst15-116] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- B. H. Mills
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - B. Zhao
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - S. I. Abdel-Khali
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
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Charry CH, Abdel-Khali SI, Yoda M, Sabau AS, Snead LL. Evaluation of Cooling Conditions for a High Heat Flux Testing Facility Based on Plasma-Arc Lamps. Fusion Science and Technology 2015. [DOI: 10.13182/fst15-121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C. H. Charry
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - S. I. Abdel-Khali
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - M. Yoda
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0405 USA
| | - A. S. Sabau
- Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA
| | - L. L. Snead
- Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA
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Tohmonda T, Yoda M, Iwawaki T, Matsumoto M, Nakamura M, Mikoshiba K, Toyama Y, Horiuchi K. IRE1α/XBP1-mediated branch of the unfolded protein response regulates osteoclastogenesis. J Clin Invest 2015; 125:3269-79. [PMID: 26193638 DOI: 10.1172/jci76765] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 06/09/2015] [Indexed: 01/16/2023] Open
Abstract
The unfolded protein response (UPR) is a cellular adaptive mechanism that is activated in response to the accumulation of unfolded proteins in the endoplasmic reticulum. The inositol-requiring protein-1α/X-box-binding protein-mediated (IRE1α/XBP1-mediated) branch of the UPR is highly conserved and has also been shown to regulate various cell-fate decisions. Herein, we have demonstrated a crucial role for the IREα/XBP1-mediated arm of the UPR in osteoclast differentiation. Using murine models, we found that the conditional abrogation of IRE1α in bone marrow cells increases bone mass as the result of defective osteoclastic bone resorption. In osteoclast precursors, IRE1α was transiently activated during osteoclastogenesis, and suppression of the IRE1α/XBP1 pathway in these cells substantially inhibited the formation of multinucleated osteoclasts in vitro. We determined that XBP1 directly binds the promoter and induces transcription of the gene encoding the master regulator of osteoclastogenesis nuclear factor of activated T cells cytoplasmic 1 (NFATc1). Moreover, activation of IRE1α was partially dependent on Ca2+ oscillation mediated by inositol 1,4,5-trisphosphate receptors 2 and 3 (ITPR2 and ITPR3) in the endoplasmic reticulum, as pharmacological inhibition or deletion of these receptors markedly decreased Xbp1 mRNA processing. The present study thus reveals an intracellular pathway that integrates the UPR and osteoclast differentiation through activation of the IRE1α/XBP1 pathway.
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Kouassi-Ndjeundo J, Buraima F, Ngattia V, Badou KE, Vroh B, Yoda M. [Epidemiology and treatment of sinus mucoceles: 25 cases in Abidjan (Côte d'Ivoire)]. Mali Med 2015; 30:1-6. [PMID: 29927159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To determine the epidemiological, clinical and therapeutic characteristics of sinus mucoceles in Ivory Coast. MATERIALS AND METHODS A multicenter study conducted in the three services ENT (ear, nose & throat) hospital and university centers and clinics in Abidjan from 1996 to 2012 (16 years). It involved patients who have been diagnosed clinically and radiologically with a sinus mucocele who benefited from surgical treatment. RESULTS During the study period, 25 patients were recruited - a hospital incidence of 1.5 cases per year. A female predominance was noted with 60% of women and 40% men with a sex ratio of 0.67. Patients consulted for headache (68%), facial swelling (68%), proptosis (28%). Allergic rhinitis is the antecedent rhinologic found most commonly (32%) followed by sinusitis (12%) and nasal sinus surgery (12%). The naso-sinus CT was performed in all patients diagnosed with mucocele. Surgical excision was made by several surgical approach, the most used were the way of JACQUES and paralateronasal rhinotomy of MOURE. Pathological examination of the surgical specimen confirmed the diagnosis of sinus mucocele. The development was beset by complications such as eyelid swelling (1 case), blurred vision (1 case), unsightly surgical scar (1 case). CONCLUSION The nasal sinus mucoceles are relatively rare benign lesions with pseudo-cystic insidious evolution. Diagnosis suspected by the clinic is confirmed by radiology. Their treatment is mainly surgical.
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