1
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Wang D, Xu L, Liu Y, Wang C, Qi S, Li Z, Bai X, Liao Y, Wang Y. Role of mesenchymal stem cells in sepsis and their therapeutic potential in sepsis‑associated myopathy (Review). Int J Mol Med 2024; 54:92. [PMID: 39219272 PMCID: PMC11374154 DOI: 10.3892/ijmm.2024.5416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 08/01/2024] [Indexed: 09/04/2024] Open
Abstract
Sepsis‑induced myopathy (SIM) is one of the leading causes of death in critically ill patients. SIM mainly involves the respiratory and skeletal muscles of patients, resulting in an increased risk of lung infection, aggravated respiratory failure, and prolonged mechanical ventilation and hospital stay. SIM is also an independent risk factor associated with increased mortality in critically ill patients. At present, no effective treatment for SIM has yet been established. However, mesenchymal stem cells (MSCs) have emerged as a promising therapeutic approach and have been utilized in the treatment of various clinical conditions. A significant body of basic and clinical research supports the efficacy of MSCs in managing sepsis and muscle‑related diseases. This literature review aims to explore the relationship between MSCs and sepsis, as well as their impact on skeletal muscle‑associated diseases. Additionally, the present review discusses the potential mechanisms and therapeutic benefits of MSCs in the context of SIM.
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Affiliation(s)
- Dongfang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Ligang Xu
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yukun Liu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Chuntao Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Siyuan Qi
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Zhanfei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xiangjun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yiliu Liao
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yuchang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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2
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Du J, Wu Q, Bae EJ. Epigenetics of Skeletal Muscle Atrophy. Int J Mol Sci 2024; 25:8362. [PMID: 39125931 PMCID: PMC11312722 DOI: 10.3390/ijms25158362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/23/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
Skeletal muscle atrophy, characterized by diminished muscle strength and mass, arises from various causes, including malnutrition, aging, nerve damage, and disease-related secondary atrophy. Aging markedly escalates the prevalence of sarcopenia. Concurrently, the incidence of muscle atrophy significantly rises among patients with chronic ailments such as heart failure, diabetes, and chronic obstructive pulmonary disease (COPD). Epigenetics plays a pivotal role in skeletal muscle atrophy. Aging elevates methylation levels in the promoter regions of specific genes within muscle tissues. This aberrant methylation is similarly observed in conditions like diabetes, neurological disorders, and cardiovascular diseases. This study aims to explore the relationship between epigenetics and skeletal muscle atrophy, thereby enhancing the understanding of its pathogenesis and uncovering novel therapeutic strategies.
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Affiliation(s)
- Jiacheng Du
- Department of Biochemistry, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea
| | - Qian Wu
- Department of Biochemistry, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea
| | - Eun Ju Bae
- School of Pharmacy and Institute of New Drug Development, Jeonbuk National University, Jeonju 54896, Republic of Korea
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3
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Slavin MB, Khemraj P, Hood DA. Exercise, mitochondrial dysfunction and inflammasomes in skeletal muscle. Biomed J 2024; 47:100636. [PMID: 37499756 PMCID: PMC10828562 DOI: 10.1016/j.bj.2023.100636] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023] Open
Abstract
In the broad field of inflammation, skeletal muscle is a tissue that is understudied. Yet it represents about 40% of body mass in non-obese individuals and is therefore of fundamental importance for whole body metabolism and health. This article provides an overview of the unique features of skeletal muscle tissue, as well as its adaptability to exercise. This ability to adapt, particularly with respect to mitochondrial content and function, confers a level of metabolic "protection" against energy consuming events, and adds a measure of quality control that determines the phenotypic response to stress. Thus, we describe the particular role of mitochondria in promoting inflammasome activation in skeletal muscle, contributing to muscle wasting and dysfunction in aging, disuse and metabolic disease. We will then discuss how exercise training can be anti-inflammatory, mitigating the chronic inflammation that is observed in these conditions, potentially through improvements in mitochondrial quality and function.
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Affiliation(s)
- Mikhaela B Slavin
- School of Kinesiology and Health Science, Muscle Health Research Centre, York University, Toronto, ON, M3J 1P3, Canada
| | - Priyanka Khemraj
- School of Kinesiology and Health Science, Muscle Health Research Centre, York University, Toronto, ON, M3J 1P3, Canada
| | - David A Hood
- School of Kinesiology and Health Science, Muscle Health Research Centre, York University, Toronto, ON, M3J 1P3, Canada.
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4
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Sheng X, Lin L, Dalmo RA, Ye J. Editorial: Mucosal barrier in teleost fish: physical, biochemical, and immune nature. Front Immunol 2024; 15:1349071. [PMID: 38292870 PMCID: PMC10825589 DOI: 10.3389/fimmu.2024.1349071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/08/2024] [Indexed: 02/01/2024] Open
Affiliation(s)
- Xiuzhen Sheng
- Laboratory of Pathology and Immunology of Aquatic Animals, Key Laboratory of Mariculture, Ministry of Education (KLMME), Ocean University of China, Qingdao, China
| | - Li Lin
- College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Roy Ambli Dalmo
- Faculty of Biosciences, Fisheries and Economics, UiT Arctic University of Norway, Tromsø, Norway
| | - Jianmin Ye
- School of Life Sciences, South China Normal University, Guangzhou, China
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5
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Dombrecht D, Van Daele U, Van Asbroeck B, Schieffelers DR, Guns PJ, van Breda E. Skeletal muscle wasting after burn is regulated by a decrease in anabolic signaling in the early flow phase. Burns 2023; 49:1574-1584. [PMID: 37833149 DOI: 10.1016/j.burns.2023.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/14/2023] [Accepted: 08/10/2023] [Indexed: 10/15/2023]
Abstract
Following burns a sustained catabolic stress response is activated, resulting in skeletal muscle wasting. A better understanding of the underlying mechanisms of postburn skeletal muscle wasting is essential for the development of preventive and/or therapeutic strategies. Six weeks old female rats underwent a sham, 10% or 40% total body surface area scald burn. Ten days post-injury, severely burned animals gained significantly less weight compared to sham treated and minor burned animals, reflected in a significantly lower ratio of muscle to total body weight for Soleus (SOL) and Extensor Digitorum Longus (EDL) in the severely burned group. Postburn, total fiber number was significantly lower in EDL, while in SOL the amount of type1 fibers significantly increased and type2 fibers significantly decreased. No signs of mitochondrial dysfunction (COX/SDH) or apoptosis (caspase-3) were found. In SOL and EDL, eEF2 and pAKT expression was significantly lower after severe burn. MURF1,2,3 and Atrogin-1 was significantly higher in SOL, whilst in EDL MURF1,2,3 was significantly lower postburn. In both muscles, FOXO3A was significantly lower postburn. This study identified postburn changes in muscle anthropomorphology and proteins involved in pathways regulating protein synthesis and breakdown, with more pronounced catabolic effects in SOL.
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Affiliation(s)
- Dorien Dombrecht
- Department of Rehabilitation Sciences & Physiotherapy, Research Group MOVANT, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - Ulrike Van Daele
- Department of Rehabilitation Sciences & Physiotherapy, Research Group MOVANT, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium; Oscare, Organisation for Burns, Scar After-Care and Research, 2170 Antwerp, Belgium.
| | - Birgit Van Asbroeck
- Department of Rehabilitation Sciences & Physiotherapy, Research Group MOVANT, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - David R Schieffelers
- Department of Rehabilitation Sciences & Physiotherapy, Research Group MOVANT, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - Pieter-Jan Guns
- Laboratory of Physiopharmacology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - Eric van Breda
- Department of Rehabilitation Sciences & Physiotherapy, Research Group MOVANT, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium.
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6
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Huo X, Zhang Q, Chang J, Yang G, He S, Yang C, Liang X, Zhang Y, Su J. Nanopeptide C-I20 as a novel feed additive effectively alleviates detrimental impacts of soybean meal on mandarin fish by improving the intestinal mucosal barrier. Front Immunol 2023; 14:1197767. [PMID: 37435065 PMCID: PMC10331600 DOI: 10.3389/fimmu.2023.1197767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/13/2023] [Indexed: 07/13/2023] Open
Abstract
Antibacterial peptide has been widely developed in cultivation industry as feed additives. However, its functions in reducing the detrimental impacts of soybean meal (SM) remain unknown. In this study, we prepared nano antibacterial peptide CMCS-gcIFN-20H (C-I20) with excellent sustained-release and anti-enzymolysis, and fed mandarin fish (Siniperca chuatsi) with a SM diet supplemented with different levels of C-I20 (320, 160, 80, 40, 0 mg/Kg) for 10 weeks. 160 mg/Kg C-I20 treatment significantly improved the final body weight, weight gain rate and crude protein content of mandarin fish and reduced feed conversion ratio. 160 mg/Kg C-I20-fed fish maintained appropriate goblet cells number and mucin thickness, as well as improved villus length, intestinal cross-sectional area. Based on these advantageous physiological changes, 160 mg/Kg C-I20 treatment effectively reduced multi-type tissue (liver, trunk kidney, head kidney and spleen) injury. The addition of C-I20 did not change the muscle composition and muscle amino acids composition. Interestingly, dietary 160 mg/Kg C-I20 supplementation prevented the reduction in myofiber diameter and change in muscle texture, and effectively increased polyunsaturated fatty acids (especially DHA + EPA) in muscle. In conclusion, dietary C-I20 in a reasonable concentration supplementation effectively alleviates the negative effects of SM by improving the intestinal mucosal barrier. The application of nanopeptide C-I20 is a prospectively novel strategy for promoting aquaculture development.
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Affiliation(s)
- Xingchen Huo
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Qiwei Zhang
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Jiao Chang
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Gang Yang
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Shan He
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Chunrong Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xufang Liang
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Yongan Zhang
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Jianguo Su
- Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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7
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Vitale I, Pietrocola F, Guilbaud E, Aaronson SA, Abrams JM, Adam D, Agostini M, Agostinis P, Alnemri ES, Altucci L, Amelio I, Andrews DW, Aqeilan RI, Arama E, Baehrecke EH, Balachandran S, Bano D, Barlev NA, Bartek J, Bazan NG, Becker C, Bernassola F, Bertrand MJM, Bianchi ME, Blagosklonny MV, Blander JM, Blandino G, Blomgren K, Borner C, Bortner CD, Bove P, Boya P, Brenner C, Broz P, Brunner T, Damgaard RB, Calin GA, Campanella M, Candi E, Carbone M, Carmona-Gutierrez D, Cecconi F, Chan FKM, Chen GQ, Chen Q, Chen YH, Cheng EH, Chipuk JE, Cidlowski JA, Ciechanover A, Ciliberto G, Conrad M, Cubillos-Ruiz JR, Czabotar PE, D'Angiolella V, Daugaard M, Dawson TM, Dawson VL, De Maria R, De Strooper B, Debatin KM, Deberardinis RJ, Degterev A, Del Sal G, Deshmukh M, Di Virgilio F, Diederich M, Dixon SJ, Dynlacht BD, El-Deiry WS, Elrod JW, Engeland K, Fimia GM, Galassi C, Ganini C, Garcia-Saez AJ, Garg AD, Garrido C, Gavathiotis E, Gerlic M, Ghosh S, Green DR, Greene LA, Gronemeyer H, Häcker G, Hajnóczky G, Hardwick JM, Haupt Y, He S, Heery DM, Hengartner MO, Hetz C, Hildeman DA, Ichijo H, Inoue S, Jäättelä M, Janic A, Joseph B, Jost PJ, Kanneganti TD, Karin M, Kashkar H, Kaufmann T, Kelly GL, Kepp O, Kimchi A, Kitsis RN, Klionsky DJ, Kluck R, Krysko DV, Kulms D, Kumar S, Lavandero S, Lavrik IN, Lemasters JJ, Liccardi G, Linkermann A, Lipton SA, Lockshin RA, López-Otín C, Luedde T, MacFarlane M, Madeo F, Malorni W, Manic G, Mantovani R, Marchi S, Marine JC, Martin SJ, Martinou JC, Mastroberardino PG, Medema JP, Mehlen P, Meier P, Melino G, Melino S, Miao EA, Moll UM, Muñoz-Pinedo C, Murphy DJ, Niklison-Chirou MV, Novelli F, Núñez G, Oberst A, Ofengeim D, Opferman JT, Oren M, Pagano M, Panaretakis T, Pasparakis M, Penninger JM, Pentimalli F, Pereira DM, Pervaiz S, Peter ME, Pinton P, Porta G, Prehn JHM, Puthalakath H, Rabinovich GA, Rajalingam K, Ravichandran KS, Rehm M, Ricci JE, Rizzuto R, Robinson N, Rodrigues CMP, Rotblat B, Rothlin CV, Rubinsztein DC, Rudel T, Rufini A, Ryan KM, Sarosiek KA, Sawa A, Sayan E, Schroder K, Scorrano L, Sesti F, Shao F, Shi Y, Sica GS, Silke J, Simon HU, Sistigu A, Stephanou A, Stockwell BR, Strapazzon F, Strasser A, Sun L, Sun E, Sun Q, Szabadkai G, Tait SWG, Tang D, Tavernarakis N, Troy CM, Turk B, Urbano N, Vandenabeele P, Vanden Berghe T, Vander Heiden MG, Vanderluit JL, Verkhratsky A, Villunger A, von Karstedt S, Voss AK, Vousden KH, Vucic D, Vuri D, Wagner EF, Walczak H, Wallach D, Wang R, Wang Y, Weber A, Wood W, Yamazaki T, Yang HT, Zakeri Z, Zawacka-Pankau JE, Zhang L, Zhang H, Zhivotovsky B, Zhou W, Piacentini M, Kroemer G, Galluzzi L. Apoptotic cell death in disease-Current understanding of the NCCD 2023. Cell Death Differ 2023; 30:1097-1154. [PMID: 37100955 PMCID: PMC10130819 DOI: 10.1038/s41418-023-01153-w] [Citation(s) in RCA: 104] [Impact Index Per Article: 104.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 04/28/2023] Open
Abstract
Apoptosis is a form of regulated cell death (RCD) that involves proteases of the caspase family. Pharmacological and genetic strategies that experimentally inhibit or delay apoptosis in mammalian systems have elucidated the key contribution of this process not only to (post-)embryonic development and adult tissue homeostasis, but also to the etiology of multiple human disorders. Consistent with this notion, while defects in the molecular machinery for apoptotic cell death impair organismal development and promote oncogenesis, the unwarranted activation of apoptosis promotes cell loss and tissue damage in the context of various neurological, cardiovascular, renal, hepatic, infectious, neoplastic and inflammatory conditions. Here, the Nomenclature Committee on Cell Death (NCCD) gathered to critically summarize an abundant pre-clinical literature mechanistically linking the core apoptotic apparatus to organismal homeostasis in the context of disease.
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Affiliation(s)
- Ilio Vitale
- IIGM - Italian Institute for Genomic Medicine, c/o IRCSS Candiolo, Torino, Italy.
- Candiolo Cancer Institute, FPO -IRCCS, Candiolo, Italy.
| | - Federico Pietrocola
- Department of Biosciences and Nutrition, Karolinska Institute, Huddinge, Sweden
| | - Emma Guilbaud
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Stuart A Aaronson
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | - John M Abrams
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Dieter Adam
- Institut für Immunologie, Kiel University, Kiel, Germany
| | - Massimiliano Agostini
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
| | - Patrizia Agostinis
- Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
- VIB Center for Cancer Biology, Leuven, Belgium
| | - Emad S Alnemri
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
- BIOGEM, Avellino, Italy
| | - Ivano Amelio
- Division of Systems Toxicology, Department of Biology, University of Konstanz, Konstanz, Germany
| | - David W Andrews
- Sunnybrook Research Institute, Toronto, ON, Canada
- Departments of Biochemistry and Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Rami I Aqeilan
- Hebrew University of Jerusalem, Lautenberg Center for Immunology & Cancer Research, Institute for Medical Research Israel-Canada (IMRIC), Faculty of Medicine, Jerusalem, Israel
| | - Eli Arama
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Eric H Baehrecke
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Siddharth Balachandran
- Blood Cell Development and Function Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Daniele Bano
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Nickolai A Barlev
- Department of Biomedicine, Nazarbayev University School of Medicine, Astana, Kazakhstan
| | - Jiri Bartek
- Department of Medical Biochemistry and Biophysics, Science for Life Laboratory, Karolinska Institute, Stockholm, Sweden
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Nicolas G Bazan
- Neuroscience Center of Excellence, School of Medicine, Louisiana State University Health New Orleans, New Orleans, LA, USA
| | - Christoph Becker
- Department of Medicine 1, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Francesca Bernassola
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
| | - Mathieu J M Bertrand
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Marco E Bianchi
- Università Vita-Salute San Raffaele, School of Medicine, Milan, Italy and Ospedale San Raffaele IRCSS, Milan, Italy
| | | | - J Magarian Blander
- Department of Medicine, Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY, USA
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
- Sandra and Edward Meyer Cancer Center, New York, NY, USA
| | | | - Klas Blomgren
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
- Pediatric Hematology and Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Christoph Borner
- Institute of Molecular Medicine and Cell Research, Medical Faculty, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Carl D Bortner
- Signal Transduction Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, Durham, NC, USA
| | - Pierluigi Bove
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
| | - Patricia Boya
- Centro de Investigaciones Biologicas Margarita Salas, CSIC, Madrid, Spain
| | - Catherine Brenner
- Université Paris-Saclay, CNRS, Institut Gustave Roussy, Aspects métaboliques et systémiques de l'oncogénèse pour de nouvelles approches thérapeutiques, Villejuif, France
| | - Petr Broz
- Department of Immunobiology, University of Lausanne, Epalinges, Vaud, Switzerland
| | - Thomas Brunner
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Rune Busk Damgaard
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - George A Calin
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michelangelo Campanella
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, London, UK
- UCL Consortium for Mitochondrial Research, London, UK
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Eleonora Candi
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
| | - Michele Carbone
- Thoracic Oncology, University of Hawaii Cancer Center, Honolulu, HI, USA
| | | | - Francesco Cecconi
- Cell Stress and Survival Unit, Center for Autophagy, Recycling and Disease (CARD), Danish Cancer Society Research Center, Copenhagen, Denmark
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francis K-M Chan
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
| | - Guo-Qiang Chen
- State Key Lab of Oncogene and its related gene, Ren-Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Quan Chen
- College of Life Sciences, Nankai University, Tianjin, China
| | - Youhai H Chen
- Shenzhen Institute of Advanced Technology (SIAT), Shenzhen, Guangdong, China
| | - Emily H Cheng
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jerry E Chipuk
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John A Cidlowski
- Signal Transduction Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, Durham, NC, USA
| | - Aaron Ciechanover
- The Technion-Integrated Cancer Center, The Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | | | - Marcus Conrad
- Helmholtz Munich, Institute of Metabolism and Cell Death, Neuherberg, Germany
| | - Juan R Cubillos-Ruiz
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
| | - Peter E Czabotar
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Mads Daugaard
- Department of Urologic Sciences, Vancouver Prostate Centre, Vancouver, BC, Canada
| | - Ted M Dawson
- Institute for Cell Engineering and the Departments of Neurology, Neuroscience and Pharmacology & Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Valina L Dawson
- Institute for Cell Engineering and the Departments of Neurology, Neuroscience and Pharmacology & Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ruggero De Maria
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Bart De Strooper
- VIB Centre for Brain & Disease Research, Leuven, Belgium
- Department of Neurosciences, Leuven Brain Institute, KU Leuven, Leuven, Belgium
- The Francis Crick Institute, London, UK
- UK Dementia Research Institute at UCL, University College London, London, UK
| | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Ralph J Deberardinis
- Howard Hughes Medical Institute and Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Alexei Degterev
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA, USA
| | - Giannino Del Sal
- Department of Life Sciences, University of Trieste, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, Trieste, Italy
- IFOM ETS, the AIRC Institute of Molecular Oncology, Milan, Italy
| | - Mohanish Deshmukh
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA
| | | | - Marc Diederich
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Scott J Dixon
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Brian D Dynlacht
- Department of Pathology, New York University Cancer Institute, New York University School of Medicine, New York, NY, USA
| | - Wafik S El-Deiry
- Division of Hematology/Oncology, Brown University and the Lifespan Cancer Institute, Providence, RI, USA
- Legorreta Cancer Center at Brown University, The Warren Alpert Medical School, Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, The Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - John W Elrod
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Kurt Engeland
- Molecular Oncology, University of Leipzig, Leipzig, Germany
| | - Gian Maria Fimia
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Claudia Galassi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Carlo Ganini
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
- Biochemistry Laboratory, Dermopatic Institute of Immaculate (IDI) IRCCS, Rome, Italy
| | - Ana J Garcia-Saez
- CECAD, Institute of Genetics, University of Cologne, Cologne, Germany
| | - Abhishek D Garg
- Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Carmen Garrido
- INSERM, UMR, 1231, Dijon, France
- Faculty of Medicine, Université de Bourgogne Franche-Comté, Dijon, France
- Anti-cancer Center Georges-François Leclerc, Dijon, France
| | - Evripidis Gavathiotis
- Department of Biochemistry, Albert Einstein College of Medicine, New York, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, New York, NY, USA
- Albert Einstein Cancer Center, Albert Einstein College of Medicine, New York, NY, USA
- Institute for Aging Research, Albert Einstein College of Medicine, New York, NY, USA
- Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, New York, NY, USA
| | - Motti Gerlic
- Department of Clinical Microbiology and Immunology, Sackler school of Medicine, Tel Aviv university, Tel Aviv, Israel
| | - Sourav Ghosh
- Department of Neurology and Department of Pharmacology, Yale School of Medicine, New Haven, CT, USA
| | - Douglas R Green
- Department of Immunology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Lloyd A Greene
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Hinrich Gronemeyer
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France
- Centre National de la Recherche Scientifique, UMR7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale, U1258, Illkirch, France
- Université de Strasbourg, Illkirch, France
| | - Georg Häcker
- Faculty of Medicine, Institute of Medical Microbiology and Hygiene, Medical Center, University of Freiburg, Freiburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
| | - György Hajnóczky
- MitoCare Center, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - J Marie Hardwick
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Departments of Molecular Microbiology and Immunology, Pharmacology, Oncology and Neurology, Johns Hopkins Bloomberg School of Public Health and School of Medicine, Baltimore, MD, USA
| | - Ygal Haupt
- VITTAIL Ltd, Melbourne, VIC, Australia
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Sudan He
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Suzhou Institute of Systems Medicine, Suzhou, Jiangsu, China
| | - David M Heery
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | | | - Claudio Hetz
- Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile
- Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
- Center for Molecular Studies of the Cell, Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, University of Chile, Santiago, Chile
- Buck Institute for Research on Aging, Novato, CA, USA
| | - David A Hildeman
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Hidenori Ichijo
- Laboratory of Cell Signaling, The University of Tokyo, Tokyo, Japan
| | - Satoshi Inoue
- National Cancer Center Research Institute, Tokyo, Japan
| | - Marja Jäättelä
- Cell Death and Metabolism, Center for Autophagy, Recycling and Disease, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ana Janic
- Department of Medicine and Life Sciences, Pompeu Fabra University, Barcelona, Spain
| | - Bertrand Joseph
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Philipp J Jost
- Clinical Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | | | - Michael Karin
- Departments of Pharmacology and Pathology, School of Medicine, University of California San Diego, San Diego, CA, USA
| | - Hamid Kashkar
- CECAD Research Center, Institute for Molecular Immunology, University of Cologne, Cologne, Germany
| | - Thomas Kaufmann
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Gemma L Kelly
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Oliver Kepp
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Center, Université Paris Saclay, Villejuif, France
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
| | - Adi Kimchi
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Richard N Kitsis
- Department of Biochemistry, Albert Einstein College of Medicine, New York, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, New York, NY, USA
- Albert Einstein Cancer Center, Albert Einstein College of Medicine, New York, NY, USA
- Institute for Aging Research, Albert Einstein College of Medicine, New York, NY, USA
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
- Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, New York, NY, USA
| | | | - Ruth Kluck
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Dmitri V Krysko
- Cell Death Investigation and Therapy Lab, Department of Human Structure and Repair, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Dagmar Kulms
- Department of Dermatology, Experimental Dermatology, TU-Dresden, Dresden, Germany
- National Center for Tumor Diseases Dresden, TU-Dresden, Dresden, Germany
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, Australia
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Sergio Lavandero
- Universidad de Chile, Facultad Ciencias Quimicas y Farmaceuticas & Facultad Medicina, Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
- Department of Internal Medicine, Cardiology Division, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Inna N Lavrik
- Translational Inflammation Research, Medical Faculty, Otto von Guericke University, Magdeburg, Germany
| | - John J Lemasters
- Departments of Drug Discovery & Biomedical Sciences and Biochemistry & Molecular Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Gianmaria Liccardi
- Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany
| | - Andreas Linkermann
- Division of Nephrology, Department of Internal Medicine 3, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Biotechnology Center, Technische Universität Dresden, Dresden, Germany
| | - Stuart A Lipton
- Neurodegeneration New Medicines Center and Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
- Department of Neurosciences, University of California, San Diego, School of Medicine, La Jolla, CA, USA
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA
| | - Richard A Lockshin
- Department of Biology, Queens College of the City University of New York, Flushing, NY, USA
- St. John's University, Jamaica, NY, USA
| | - Carlos López-Otín
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - Tom Luedde
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Duesseldorf, Heinrich Heine University, Duesseldorf, Germany
| | - Marion MacFarlane
- Medical Research Council Toxicology Unit, University of Cambridge, Cambridge, UK
| | - Frank Madeo
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
- Field of Excellence BioHealth - University of Graz, Graz, Austria
| | - Walter Malorni
- Center for Global Health, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gwenola Manic
- IIGM - Italian Institute for Genomic Medicine, c/o IRCSS Candiolo, Torino, Italy
- Candiolo Cancer Institute, FPO -IRCCS, Candiolo, Italy
| | - Roberto Mantovani
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
| | - Saverio Marchi
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy
| | - Jean-Christophe Marine
- VIB Center for Cancer Biology, Leuven, Belgium
- Department of Oncology, KU Leuven, Leuven, Belgium
| | | | - Jean-Claude Martinou
- Department of Cell Biology, Faculty of Sciences, University of Geneva, Geneva, Switzerland
| | - Pier G Mastroberardino
- Department of Molecular Genetics, Rotterdam, the Netherlands
- IFOM-ETS The AIRC Institute for Molecular Oncology, Milan, Italy
- Department of Life, Health, and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Jan Paul Medema
- Laboratory for Experimental Oncology and Radiobiology, Center for Experimental and Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Oncode Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Patrick Mehlen
- Apoptosis, Cancer, and Development Laboratory, Equipe labellisée 'La Ligue', LabEx DEVweCAN, Centre de Recherche en Cancérologie de Lyon, INSERM U1052-CNRS UMR5286, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon1, Lyon, France
| | - Pascal Meier
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Gerry Melino
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
| | - Sonia Melino
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome, Italy
| | - Edward A Miao
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
| | - Ute M Moll
- Department of Pathology and Stony Brook Cancer Center, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Cristina Muñoz-Pinedo
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Spain
| | - Daniel J Murphy
- School of Cancer Sciences, University of Glasgow, Glasgow, UK
- Cancer Research UK Beatson Institute, Glasgow, UK
| | | | - Flavia Novelli
- Thoracic Oncology, University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Gabriel Núñez
- Department of Pathology and Rogel Cancer Center, The University of Michigan, Ann Arbor, MI, USA
| | - Andrew Oberst
- Department of Immunology, University of Washington, Seattle, WA, USA
| | - Dimitry Ofengeim
- Rare and Neuroscience Therapeutic Area, Sanofi, Cambridge, MA, USA
| | - Joseph T Opferman
- Department of Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Moshe Oren
- Department of Molecular Cell Biology, The Weizmann Institute, Rehovot, Israel
| | - Michele Pagano
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine and Howard Hughes Medical Institute, New York, NY, USA
| | - Theocharis Panaretakis
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of GU Medical Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | | | - Josef M Penninger
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
- Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, Canada
| | | | - David M Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Shazib Pervaiz
- Department of Physiology, YLL School of Medicine, National University of Singapore, Singapore, Singapore
- NUS Centre for Cancer Research (N2CR), National University of Singapore, Singapore, Singapore
- National University Cancer Institute, NUHS, Singapore, Singapore
- ISEP, NUS Graduate School, National University of Singapore, Singapore, Singapore
| | - Marcus E Peter
- Department of Medicine, Division Hematology/Oncology, Northwestern University, Chicago, IL, USA
| | - Paolo Pinton
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Giovanni Porta
- Center of Genomic Medicine, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Jochen H M Prehn
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland (RCSI) University of Medicine and Health Sciences, Dublin 2, Ireland
| | - Hamsa Puthalakath
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Gabriel A Rabinovich
- Laboratorio de Glicomedicina. Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | | | - Kodi S Ravichandran
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Division of Immunobiology, Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
- Center for Cell Clearance, Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Markus Rehm
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
| | - Jean-Ehrland Ricci
- Université Côte d'Azur, INSERM, C3M, Equipe labellisée Ligue Contre le Cancer, Nice, France
| | - Rosario Rizzuto
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Nirmal Robinson
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, Australia
| | - Cecilia M P Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Barak Rotblat
- Department of Life sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
- The NIBN, Beer Sheva, Israel
| | - Carla V Rothlin
- Department of Immunobiology and Department of Pharmacology, Yale School of Medicine, New Haven, CT, USA
| | - David C Rubinsztein
- Department of Medical Genetics, Cambridge Institute for Medical Research, Cambridge, UK
- UK Dementia Research Institute, University of Cambridge, Cambridge Institute for Medical Research, Cambridge, UK
| | - Thomas Rudel
- Microbiology Biocentre, University of Würzburg, Würzburg, Germany
| | - Alessandro Rufini
- Dipartimento di Bioscienze, Università degli Studi di Milano, Milano, Italy
- University of Leicester, Leicester Cancer Research Centre, Leicester, UK
| | - Kevin M Ryan
- School of Cancer Sciences, University of Glasgow, Glasgow, UK
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Kristopher A Sarosiek
- John B. Little Center for Radiation Sciences, Harvard School of Public Health, Boston, MA, USA
- Department of Systems Biology, Lab of Systems Pharmacology, Harvard Program in Therapeutics Science, Harvard Medical School, Boston, MA, USA
- Department of Environmental Health, Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA, USA
| | - Akira Sawa
- Johns Hopkins Schizophrenia Center, Johns Hopkins University, Baltimore, MD, USA
| | - Emre Sayan
- Faculty of Medicine, Cancer Sciences Unit, University of Southampton, Southampton, UK
| | - Kate Schroder
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Luca Scorrano
- Department of Biology, University of Padua, Padua, Italy
- Veneto Institute of Molecular Medicine, Padua, Italy
| | - Federico Sesti
- Department of Neuroscience and Cell Biology, Robert Wood Johnson Medical School, Rutgers University, NJ, USA
| | - Feng Shao
- National Institute of Biological Sciences, Beijing, PR China
| | - Yufang Shi
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
- The Third Affiliated Hospital of Soochow University and State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, Suzhou, Jiangsu, China
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Giuseppe S Sica
- Department of Surgical Science, University Tor Vergata, Rome, Italy
| | - John Silke
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
| | - Antonella Sistigu
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Brent R Stockwell
- Department of Biological Sciences and Department of Chemistry, Columbia University, New York, NY, USA
| | - Flavie Strapazzon
- IRCCS Fondazione Santa Lucia, Rome, Italy
- Univ Lyon, Univ Lyon 1, Physiopathologie et Génétique du Neurone et du Muscle, UMR5261, U1315, Institut NeuroMyogène CNRS, INSERM, Lyon, France
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Liming Sun
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Erwei Sun
- Department of Rheumatology and Immunology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Qiang Sun
- Laboratory of Cell Engineering, Institute of Biotechnology, Beijing, China
- Research Unit of Cell Death Mechanism, 2021RU008, Chinese Academy of Medical Science, Beijing, China
| | - Gyorgy Szabadkai
- Department of Biomedical Sciences, University of Padua, Padua, Italy
- Department of Cell and Developmental Biology, Consortium for Mitochondrial Research, University College London, London, UK
| | - Stephen W G Tait
- School of Cancer Sciences, University of Glasgow, Glasgow, UK
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Daolin Tang
- Department of Surgery, The University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Nektarios Tavernarakis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
- Department of Basic Sciences, School of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Carol M Troy
- Departments of Pathology & Cell Biology and Neurology, Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, USA
| | - Boris Turk
- Department of Biochemistry and Molecular and Structural Biology, J. Stefan Institute, Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
| | - Nicoletta Urbano
- Department of Oncohaematology, University of Rome Tor Vergata, TOR, Rome, Italy
| | - Peter Vandenabeele
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Methusalem Program, Ghent University, Ghent, Belgium
| | - Tom Vanden Berghe
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Infla-Med Centre of Excellence, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Matthew G Vander Heiden
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
- Dana-Farber Cancer Institute, Boston, MA, USA
| | | | - Alexei Verkhratsky
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
- Achucarro Center for Neuroscience, IKERBASQUE, Bilbao, Spain
- School of Forensic Medicine, China Medical University, Shenyang, China
- State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Andreas Villunger
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
- The Research Center for Molecular Medicine (CeMM) of the Austrian Academy of Sciences (OeAW), Vienna, Austria
- The Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases (LBI-RUD), Vienna, Austria
| | - Silvia von Karstedt
- Department of Translational Genomics, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
- CECAD Cluster of Excellence, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Anne K Voss
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Domagoj Vucic
- Department of Early Discovery Biochemistry, Genentech, South San Francisco, CA, USA
| | - Daniela Vuri
- Department of Experimental Medicine, University of Rome Tor Vergata, TOR, Rome, Italy
| | - Erwin F Wagner
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Henning Walczak
- Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany
- CECAD Cluster of Excellence, University of Cologne, Cologne, Germany
- Centre for Cell Death, Cancer and Inflammation, UCL Cancer Institute, University College London, London, UK
| | - David Wallach
- Department of Biomolecular Sciences, The Weizmann Institute of Science, Rehovot, Israel
| | - Ruoning Wang
- Center for Childhood Cancer and Blood Diseases, Abigail Wexner Research Institute at Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
| | - Ying Wang
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Achim Weber
- University of Zurich and University Hospital Zurich, Department of Pathology and Molecular Pathology, Zurich, Switzerland
- University of Zurich, Institute of Molecular Cancer Research, Zurich, Switzerland
| | - Will Wood
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Takahiro Yamazaki
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Huang-Tian Yang
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Zahra Zakeri
- Queens College and Graduate Center, City University of New York, Flushing, NY, USA
| | - Joanna E Zawacka-Pankau
- Department of Medicine Huddinge, Karolinska Institute, Stockholm, Sweden
- Department of Biochemistry, Laboratory of Biophysics and p53 protein biology, Medical University of Warsaw, Warsaw, Poland
| | - Lin Zhang
- Department of Pharmacology & Chemical Biology, UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Haibing Zhang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Boris Zhivotovsky
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Wenzhao Zhou
- Laboratory of Cell Engineering, Institute of Biotechnology, Beijing, China
- Research Unit of Cell Death Mechanism, 2021RU008, Chinese Academy of Medical Science, Beijing, China
| | - Mauro Piacentini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
- National Institute for Infectious Diseases IRCCS "Lazzaro Spallanzani", Rome, Italy
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Center, Université Paris Saclay, Villejuif, France
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Institut du Cancer Paris CARPEM, Department of Biology, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.
- Sandra and Edward Meyer Cancer Center, New York, NY, USA.
- Caryl and Israel Englander Institute for Precision Medicine, New York, NY, USA.
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Martyn JAJ, Sparling JL, Bittner EA. Molecular mechanisms of muscular and non-muscular actions of neuromuscular blocking agents in critical illness: a narrative review. Br J Anaesth 2023; 130:39-50. [PMID: 36175185 DOI: 10.1016/j.bja.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 01/05/2023] Open
Abstract
Despite frequent use of neuromuscular blocking agents in critical illness, changes in neuromuscular transmission with critical illness are not well appreciated. Recent studies have provided greater insights into the molecular mechanisms for beneficial muscular effects and non-muscular anti-inflammatory properties of neuromuscular blocking agents. This narrative review summarises the normal structure and function of the neuromuscular junction and its transformation to a 'denervation-like' state in critical illness, the underlying cause of aberrant neuromuscular blocking agent pharmacology. We also address the important favourable and adverse consequences and molecular bases for these consequences during neuromuscular blocking agent use in critical illness. This review, therefore, provides an enhanced understanding of clinical therapeutic effects and novel pathways for the salutary and aberrant effects of neuromuscular blocking agents when used during acquired pathologic states of critical illness.
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Affiliation(s)
- J A Jeevendra Martyn
- Department of Anesthesiology, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA; Shriners Hospitals for Children, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Jamie L Sparling
- Department of Anesthesiology, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Edward A Bittner
- Department of Anesthesiology, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA; Shriners Hospitals for Children, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
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9
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Zhang ZY, Limbu SM, Zhao SH, Chen LQ, Luo Y, Zhang ML, Qiao F, Du ZY. Dietary l-carnitine supplementation recovers the increased pH and hardness in fillets caused by high-fat diet in Nile tilapia (Oreochromis niloticus). Food Chem 2022; 382:132367. [PMID: 35152027 DOI: 10.1016/j.foodchem.2022.132367] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 01/09/2022] [Accepted: 02/04/2022] [Indexed: 11/18/2022]
Abstract
The wide use of high-fat diet (HFD) causes negative effects on flesh quality in farmed fish. l-carnitine, a lipid-lowering additive, enhances mitochondrial fatty acid β-oxidation. However its roles in alleviating the effects of HFD on flesh quality in fish are unknown. We fed Nile tilapia with medium-fat diet (MFD, 6% dietary lipid), high-fat diet (HFD, 12% dietary lipid) and HFCD supplemented with l-carnitine (HFCD + 400 mg/kg l-carnitine) for 10 weeks. The HFD-fed fish had higher fat deposition, pH value, myofiber density and flesh hardness than those fed on MFD. However, feeding the fish with the HFCD improved lipid catabolism, which increased significantly lactic acid content and myofiber diameter in muscle, thus reduced pH and hardness values. HFCD also reduced endoplasmic reticulum stress and myofiber apoptosis caused by HFD in the fish. Our study suggests that dietary l-carnitine supplementation alleviates the negative effects of HFD on flesh quality of farmed fish.
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Affiliation(s)
- Zhi-Yong Zhang
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai 200241, PR China
| | - Samwel M Limbu
- Department of Aquaculture Technology, School of Aquatic Sciences and Fisheries Technology, University of Dar es Salaam, P. O. Box 60091, Dar es Salaam, Tanzania; ECNU-UDSM Joint Research Center for Aquaculture and Fish Biology (JRCAFB), Dar es Salaam, Tanzania
| | - Si-Han Zhao
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai 200241, PR China
| | - Li-Qiao Chen
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai 200241, PR China
| | - Yuan Luo
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai 200241, PR China
| | - Mei-Ling Zhang
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai 200241, PR China
| | - Fang Qiao
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai 200241, PR China
| | - Zhen-Yu Du
- Laboratory of Aquaculture Nutrition and Environmental Health (LANEH), School of Life Sciences, East China Normal University, Shanghai 200241, PR China; ECNU-UDSM Joint Research Center for Aquaculture and Fish Biology (JRCAFB), Shanghai, PR China.
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10
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Giannos P, Prokopidis K, Raleigh SM, Kelaiditi E, Hill M. Altered mitochondrial microenvironment at the spotlight of musculoskeletal aging and Alzheimer's disease. Sci Rep 2022; 12:11290. [PMID: 35788655 PMCID: PMC9253146 DOI: 10.1038/s41598-022-15578-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/27/2022] [Indexed: 11/23/2022] Open
Abstract
Emerging evidence has linked Alzheimer's disease (AD) onset with musculoskeletal aging via a muscle-brain crosstalk mediated by dysregulation of the mitochondrial microenvironment. This study investigated gene expression profiles from skeletal muscle tissues of older healthy adults to identify potential gene biomarkers whose dysregulated expression and protein interactome were involved in AD. Screening of the literature resulted in 12 relevant microarray datasets (GSE25941, GSE28392, GSE28422, GSE47881, GSE47969, GSE59880) in musculoskeletal aging and (GSE4757, GSE5281, GSE16759, GSE28146, GSE48350, GSE84422) in AD. Retrieved differentially expressed genes (DEGs) were used to construct two unique protein-protein interaction networks and clustering gene modules were identified. Overlapping module DEGs in the musculoskeletal aging and AD networks were ranked based on 11 topological algorithms and the five highest-ranked ones were considered as hub genes. The analysis revealed that the dysregulated expression of the mitochondrial microenvironment genes, NDUFAB1, UQCRC1, UQCRFS1, NDUFS3, and MRPL15, overlapped between both musculoskeletal aging and AD networks. Thus, these genes may have a potential role as markers of AD occurrence in musculoskeletal aging. Human studies are warranted to evaluate the functional role and prognostic value of these genes in aging populations with sarcopenia and AD.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK. .,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, South Kensington, London, SW7 2AZ, UK.
| | - Konstantinos Prokopidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Stuart M Raleigh
- Cardiovascular and Lifestyle Medicine Research Group, Centre for Sport, Exercise and Life Sciences, Coventry University, Coventry, UK
| | - Eirini Kelaiditi
- Faculty of Sport, Allied Health and Performance Science, St Mary's University Twickenham, Twickenham, UK
| | - Mathew Hill
- Centre for Sport, Exercise and Life Sciences, School of Life Sciences, Coventry University, Coventry, UK
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11
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Kim TY, Park KT, Choung SY. Codonopsis lanceolata and its active component Tangshenoside I ameliorate skeletal muscle atrophy via regulating the PI3K/Akt and SIRT1/PGC-1α pathways. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 100:154058. [PMID: 35349834 DOI: 10.1016/j.phymed.2022.154058] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/18/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Skeletal muscle atrophy is caused by aging, disuse, malnutrition, and several diseases. However, there are still no effective drugs or treatments for muscle atrophy. Codonopsis lanceolata (CL), a traditional medicinal plant and food, has been reported to have anti-oxidative, anti-inflammatory, anti-tumor, and anti-obesity effects. PURPOSE This study aimed to investigate the efficacy and active component of CL on muscle atrophy in vitro and to confirm the effect of CL and its active component on muscle atrophy and the underlying molecular mechanisms in vivo. STUDY design/Methods This study used the dexamethasone (Dex)-induced muscle atrophy C2C12 myotube model and immobilization (IM)-induced muscle atrophy C57BL/6 mice model. In vitro study, the myotube diameter was measured. In vivo study, the grip strength, muscle mass (quadriceps, gastrocnemius, and soleus) and muscle fiber cross-sectional area (CSA) was measured. Western blot analysis and qRT-PCR were performed to confirm the underlying molecular mechanisms Results:In vitro study, CL and its main component, Tangshenoside I (TSI), effectively restored C2C12 myotube diameters decreased by Dex. Surprisingly, TSI was identified as the active component responsible for the overall efficacy of CL on muscle atrophy. In vivo study, CL and TSI, dose-dependently increased grip strength, mass muscle, and muscle fiber CSA reduced by IM. In the molecular mechanism studies, CL and TSI increased muscle protein synthesis via activating the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin complex 1 (mTORC1) pathway and decreased muscle protein degradation via inhibiting the muscle ring finger-1 (MuRF1) and muscle atrophy F-box protein (Atrogin-1) expressions. It also upregulated mitochondrial biogenesis via the silent information regulator 1 (SIRT1)/ peroxisome proliferator-activated receptor gamma and coactivator-1 alpha (PGC-1α) pathway. CONCLUSION This study suggests that CL and its active component, TSI, can be potential drug candidates for the prevention and treatment of muscle atrophy.
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Affiliation(s)
- Tae-Young Kim
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Keun-Tae Park
- Research and Development Center, Milae Bioresources Co., Ltd., 26, Beobwon-ro 9-gil, Songpa-gu, Seoul 05836, Republic of Korea
| | - Se-Young Choung
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea; Department of Preventive Pharmacy and Toxicology, College of Pharmacy, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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12
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Rahyussalim AJ, Zufar MLL, Kurniwati T. A holistic approach for severe flexion contracture of bilateral hip, knee, and ankle joints in a neglected patient with prolonged knee-chest positioning on extreme undernourishment: a case report and review of the literature. J Med Case Rep 2022; 16:225. [PMID: 35610728 PMCID: PMC9128234 DOI: 10.1186/s13256-022-03439-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 03/09/2022] [Indexed: 11/30/2022] Open
Abstract
Background Flexion contracture in the lower extremity is a common finding in the patient with neuromusculoskeletal disorders. However, severe cases due to prolonged immobilization in knee–chest position are rarely established and remain underreported. This condition is associated with high morbidity and reduced quality of life, especially when it comes to neglected cases with missed injury and late presentation for adequate primary care and rehabilitative program. It remains a difficult challenge to treat, with no established treatment protocol. In addition, other factors related to psychological and socioeconomic conditions may interfere and aggravate the health state of such patients. Case presentation A 19-year-old Javanese man presented with flexion contracture of bilateral hip, knee, and ankle joints due to prolonged immobilization in knee–chest position for almost 2 years following a traffic accident and falling in the bathroom. The condition had persisted for the last 3 years due to irrecoverable condition and lack of awareness. In addition, the patient also presented with paraplegia at level L2–S1, dermatitis neglecta, multiple pressure ulcers, community-acquired pneumonia, and severe malnutrition. Prolonged and sustained passive stretching with serial plastering were performed in the patient. By the time of discharge, patient was able to move and ambulate using wheelchair. Progressive improvement of range of motion and good sitting balance were observed by 3-month follow-up. Conclusion A combination of surgery and rehabilitative care is required in the setting of severe flexion contracture. Passive prolonged stretching showed a better outcome and efficacy in the management of flexion contracture, whether the patient undergoes surgery or not. However, evaluation of residual muscle strength, changes in bone density and characteristic, and the patient’s general and comorbid conditions must always be considered when determining the best treatment of choice for each patient to achieve good outcome and result. A holistic approach with comprehensive assessment is important when treating such patients.
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Affiliation(s)
- Ahmad Jabir Rahyussalim
- Department of Orthopaedic and Traumatology, Cipto Mangunkusumo National Central General Hospital and Faculty of Medicine, Universitas Indonesia, Jl. Pangeran Diponegoro No.71, RW.5, Kenari, Kec. Senen, Kota Jakarta Pusat, Daerah Khusus Ibukota, Jakarta, 10310, Indonesia.
| | - Muhammad Luqman Labib Zufar
- Department of Orthopaedic and Traumatology, Cipto Mangunkusumo National Central General Hospital and Faculty of Medicine, Universitas Indonesia, Jl. Pangeran Diponegoro No.71, RW.5, Kenari, Kec. Senen, Kota Jakarta Pusat, Daerah Khusus Ibukota, Jakarta, 10310, Indonesia
| | - Tri Kurniwati
- Stem Cell and Tissue Engineering, IMERI Universitas, Jakarta, Indonesia
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13
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Tanaka N, Honda Y, Kajiwara Y, Kataoka H, Origuchi T, Sakamoto J, Okita M. Myonuclear apoptosis via cleaved caspase-3 upregulation is related to macrophage accumulation underlying immobilization-induced muscle fibrosis. Muscle Nerve 2021; 65:341-349. [PMID: 34890049 DOI: 10.1002/mus.27473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 11/08/2021] [Accepted: 12/04/2021] [Indexed: 11/09/2022]
Abstract
INTRODUCTION/AIMS Although macrophage accumulation plays a key role in the development of immobilization-induced muscle fibrosis, the underlying mechanisms remain unclear. Therefore, we focused on the alterations of myonuclear apoptosis via cleaved caspase-3, and investigated whether these changes may be related to macrophage accumulation. METHODS Eight-week-old Wistar rats were divided into immobilization and control groups, and the soleus muscles were selected for analysis. RESULTS The mRNA and protein expression of collagen and the number of CD11b-positive cells were significantly higher in the immobilized rats than in the control rats at 1 and 2 weeks. TdT-mediated dUTP nick end-labeling (TUNEL)-positive myonuclei counts in 1- and 2-week control rats were 0.2 ± 0.1 and 0.2 ± 0.5, whereas they were 1.0 ± 0.6 and 1.1 ± 0.5 in 1- and 2-week immobilized rats. The cleaved caspase-3 protein expressions in 1- and 2-week control rats were 0.2 ± 0.1 and 0.2 ± 0.1, whereas they were 0.5 ± 0.1 and 0.4 ± 0.2 in 1- and 2-week immobilized rats. TUNEL-positive myonuclei counts and cleaved caspase-3 protein expression were significantly higher in immobilized rats than in control rats at 1 and 2 weeks. The numbers of myonuclei in 1- and 2-week control rats were 2.8 ± 0.1 and 2.6 ± 0.4, whereas they were 2.2 ± 0.4 and 2.2 ± 0.2 in 1- and 2-week immobilized rats. The numbers of myonuclei were significantly lower in immobilized than in control rats at both time-points. DISCUSSION Myonuclear apoptosis via the upregulation of cleaved caspase-3 might induce macrophage accumulation. These alterations are related to immobilization-induced muscle fibrosis.
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Affiliation(s)
- Natsumi Tanaka
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Physical Therapy, School of Rehabilitation Sciences, Seirei Christopher University, Shizuoka, Japan
| | - Yuichiro Honda
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Yasuhiro Kajiwara
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Nagasaki University Hospital, Nagasaki, Japan
| | - Hideki Kataoka
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Nagasaki Memorial Hospital, Nagasaki, Japan
| | - Tomoki Origuchi
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Minoru Okita
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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14
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Miao C, Zhang W, Feng L, Gu X, Shen Q, Lu S, Fan M, Li Y, Guo X, Ma Y, Liu X, Wang H, Zhang X. Cancer-derived exosome miRNAs induce skeletal muscle wasting by Bcl-2-mediated apoptosis in colon cancer cachexia. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 24:923-938. [PMID: 34094711 PMCID: PMC8141664 DOI: 10.1016/j.omtn.2021.04.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/20/2021] [Indexed: 12/22/2022]
Abstract
Cancer cachexia is a kind of whole-body metabolic disorder syndrome accompanied by severe wasting of muscle tissue in which cancer exosomes may be involved. Analysis of clinical samples showed that the serum exosome concentrations were correlated with the development of cancer cachexia. Exosomes secreted by C26 cells could decrease the diameter of C2C12 myotubes in vitro and decrease mouse muscle strength and tibialis anterior (TA) muscle weight in vivo. GW4869, an inhibitor of exosome excretion, ameliorated muscle wasting in C26 tumor-bearing mice. MicroRNA (miRNA) sequencing (miRNA-seq) analysis suggested that miR-195a-5p and miR-125b-1-3p were richer in C26 exosomes than in exosomes secreted from MC38 cells (non-cachexic). Both miR-195a-5p and miR-125b-1-3p mimics could induce atrophy of C2C12 myoblasts. Downregulation of Bcl-2 and activation of the apoptotic signaling pathway were observed in C2C12 myoblasts transfected with miR-195a-5p and miR-125b-1-3p mimics, in the gastrocnemius muscle of C26 tumor-bearing mice and in the TA muscle injected with C26 exosomes. Results of dual-luciferase assay confirmed the targeting of miR-195a-5p/miR-125b-1-3p to Bcl-2. Overexpression of Bcl-2 successfully reversed atrophy of C2C12 myoblasts induced by the two miRNA mimics. These results suggested that cancer exosome enriched miRNAs might induce muscle atrophy by targeting Bcl-2-mediated apoptosis.
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Affiliation(s)
- Chunxiao Miao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wanli Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Lixing Feng
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Xiaofan Gu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Qiang Shen
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.,Institute of Interdisciplinary Integrative Biomedical Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shanshan Lu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Meng Fan
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Yiwei Li
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Xianling Guo
- Department of Oncology, The Tenth People's Hospital, Tongji University, Shanghai, China
| | - Yushui Ma
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Xuan Liu
- Institute of Interdisciplinary Integrative Biomedical Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hui Wang
- Department of Oncology, The Tenth People's Hospital, Tongji University, Shanghai, China
| | - Xiongwen Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
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15
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Yadav A, Singh A, Phogat J, Dahuja A, Dabur R. Magnoflorine prevent the skeletal muscle atrophy via Akt/mTOR/FoxO signal pathway and increase slow-MyHC production in streptozotocin-induced diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113510. [PMID: 33141056 DOI: 10.1016/j.jep.2020.113510] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/24/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tinospora cordifolia (TC) is being used as a blood purifier in Ayurveda since ancient time. It is a very popular immunomodulator and holds anti-inflammatory and anti-oxidative potential, hence anti-aging properties. Therefore, it is also known as 'Amrita' in Ayurveda and is widely used to treat diabetes mellitus type II (T2DM) and its secondary complications; however, its underlying mechanism was not expedited to date. AIM-: To explore the in vivo therapeutic efficiency and mechanism of action of TC and its secondary constitute magnoflorine on the skeletal muscle atrophy in the rat model of T2DM. METHOD Animal model of T2DM was developed using streptozotocin (STZ) injection followed by intervention with TC, metformin, and magnoflorine for three weeks. Confirmation of T2DM and abrogation of atrophic markers and possible mechanisms on supplementation of TC and magnoflorine were explored using histology, bio-assays, Western blotting, and q-PCR. RESULT TC and Magnoflorine supplementations significantly (p ≤ 0.05) decreased the fasting blood glucose (FBG) levels in T2DM rats. Both treatments prevented the lean body, individual skeletal muscle mass, and myotubes diameter loss (p ≤ 0.05). Magnoflorine significantly reduced the degradation of the protein indicated by biochemical markers of atrophy i.e. decreased serum creatine kinase (CK) levels and increased myosin heavy chain-β (MyHC-β) levels in muscles. Q-PCR and western blotting supported the findings that magnoflorine significantly increased the mRNA and protein abundances (~3 fold) of MyHC-β.TC and magnoflorine efficiently decreased the expression of ubiquitin-proteasomal E3-ligases (Fn-14/TWEAK, MuRF1, and Atrogin 1), autophagy (Bcl-2/LC3B), and caspase related genes along with calpains activities in T2DM rats. Both TC and magnoflorine also increased the activity of superoxide dismutase, GSH-Px, decreased the activities of β-glucuronidase, LPO, and prevented any alteration in the catalase activity. In contrast, magnoflorine increased expression of TNF-α and IL-6 whereas TC and metformin efficiently decreased the levels of these pro-inflammatory cytokines (p ≤ 0.05). However, magnoflorine was found to increase phosphorylation of Akt more efficiently than TC and metformin. CONCLUSION TC, and magnoflorine are found to be effective to control fasting blood glucose levels significantly in T2DM rats. It also promoted the Akt phosphorylation, suppressed autophagy and proteolysis that might be related to blood glucose-lowering efficacy of magnoflorine and TC. However, increased muscle weight, specifically of the soleus muscle, expression of IL-6, and slow MyHC indicated the increased myogenesis in response to magnoflorine and independent from its hypoglycemic activity.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- Aporphines/pharmacology
- Autophagy/drug effects
- Blood Glucose/drug effects
- Blood Glucose/metabolism
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 2/chemically induced
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/metabolism
- Forkhead Transcription Factors/metabolism
- Hypoglycemic Agents/pharmacology
- Inflammation Mediators/metabolism
- Male
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/enzymology
- Muscle, Skeletal/pathology
- Muscular Atrophy/enzymology
- Muscular Atrophy/etiology
- Muscular Atrophy/pathology
- Muscular Atrophy/prevention & control
- Myosin Heavy Chains/genetics
- Myosin Heavy Chains/metabolism
- Oxidative Stress/drug effects
- Phosphorylation
- Proto-Oncogene Proteins c-akt/metabolism
- Rats, Wistar
- Signal Transduction
- Streptozocin
- TOR Serine-Threonine Kinases/metabolism
- Rats
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Affiliation(s)
- Aarti Yadav
- Clinical Research Laboratory, Department of Biochemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Ajay Singh
- Clinical Research Laboratory, Department of Biochemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Jatin Phogat
- Clinical Research Laboratory, Department of Biochemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Anil Dahuja
- Division of Biochemistry, Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Rajesh Dabur
- Clinical Research Laboratory, Department of Biochemistry, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
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16
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Oga S, Goto K, Sakamoto J, Honda Y, Sasaki R, Ishikawa K, Kataoka H, Nakano J, Origuchi T, Okita M. Mechanisms underlying immobilization-induced muscle pain in rats. Muscle Nerve 2020; 61:662-670. [PMID: 32083755 DOI: 10.1002/mus.26840] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 12/01/2019] [Accepted: 12/03/2019] [Indexed: 12/27/2022]
Abstract
INTRODUCTION We investigated the mechanisms underlying immobilization-induced muscle pain in rats. METHODS In rat skeletal muscle, pressure pain threshold (PPT) of the gastrocnemius muscle was measured, and nerve growth factor (NGF) level, peripheral nerve fiber density, macrophage number, and interleukin-1β (IL-1β) mRNA expression were examined. An NGF receptor inhibitor was injected intramuscularly to assess the relationship between PPT and NGF levels. RESULTS Immobilization resulted in a decrease in PPT and increases in NGF level, C-fiber density, M1 macrophage number, and IL-1β mRNA expression. Injection of NGF receptor inhibitor reversed the decrease in PPT. DISCUSSION NGF upregulation may be a major contributor to immobilization-induced muscle pain. The increases in C-fiber density, M1 macrophage number, and IL-1β mRNA expression may be related to immobilization-induced muscle pain.
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Affiliation(s)
- Satoshi Oga
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Japanese Red Cross Nagasaki Genbaku Hospital, Nagasaki, Japan
| | - Kyo Goto
- Department of Rehabilitation, Nagasaki Memorial Hospital, Nagasaki, Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuichiro Honda
- Department of Rehabilitation, Nagasaki University Hospital, Nagasaki, Japan
| | - Ryo Sasaki
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Rehabilitation, Juzenkai Hospital, Nagasaki, Japan
| | - Kumiko Ishikawa
- Department of Rehabilitation, Nagasaki University Hospital, Nagasaki, Japan
| | - Hideki Kataoka
- Department of Rehabilitation, Nagasaki Memorial Hospital, Nagasaki, Japan
| | - Jiro Nakano
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomoki Origuchi
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Minoru Okita
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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17
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Qaisar R, Karim A, Elmoselhi AB. Muscle unloading: A comparison between spaceflight and ground-based models. Acta Physiol (Oxf) 2020; 228:e13431. [PMID: 31840423 DOI: 10.1111/apha.13431] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 12/12/2022]
Abstract
Prolonged unloading of skeletal muscle, a common outcome of events such as spaceflight, bed rest and hindlimb unloading, can result in extensive metabolic, structural and functional changes in muscle fibres. With advancement in investigations of cellular and molecular mechanisms, understanding of disuse muscle atrophy has significantly increased. However, substantial gaps exist in our understanding of the processes dictating muscle plasticity during unloading, which prevent us from developing effective interventions to combat muscle loss. This review aims to update the status of knowledge and underlying mechanisms leading to cellular and molecular changes in skeletal muscle during unloading. We have also discussed advances in the understanding of contractile dysfunction during spaceflights and in ground-based models of muscle unloading. Additionally, we have elaborated on potential therapeutic interventions that show promising results in boosting muscle mass and strength during mechanical unloading. Finally, we have identified key gaps in our knowledge as well as possible research direction for the future.
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Affiliation(s)
- Rizwan Qaisar
- Department of Basic Medical Sciences College of Medicine University of Sharjah Sharjah UAE
| | - Asima Karim
- Department of Basic Medical Sciences College of Medicine University of Sharjah Sharjah UAE
| | - Adel B. Elmoselhi
- Department of Basic Medical Sciences College of Medicine University of Sharjah Sharjah UAE
- Department of Physiology Michigan State University East Lansing MI USA
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18
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Yang Y, Ma S, Ye Z, Zhou X. MCM7 silencing promotes cutaneous melanoma cell autophagy and apoptosis by inactivating the AKT1/mTOR signaling pathway. J Cell Biochem 2020; 121:1283-1294. [PMID: 31535400 DOI: 10.1002/jcb.29361] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 08/20/2019] [Indexed: 01/17/2023]
Abstract
Cutaneous melanoma (CM) has become a major public health concern. Studies illustrate that minichromosome maintenance protein 7 (MCM7) participate in various diseases including skin disease. Our study aimed to study the effects of MCM7 silencing on CM cell autophagy and apoptosis by modulating the AKT threonine kinase 1 (AKT1)/mechanistic target of rapamycin kinase (mTOR) signaling pathway. Initially, microarray analysis was used to screen the CM-related gene expression data as well as differentially expressed genes. Subsequently, MCM7 expression vector and lentivirus RNA used for MCM7 silencing (LV-shRNA-MCM7) were constructed, and these vectors, dimethyl sulfoxide (DMSO) and AKT activator SC79 were then introduced into CM cell line SK-MEL-2 to validate the role of MCM7 in cell autophagy, viability, apoptosis, cell cycle, migration, and invasion. To further investigate the regulatory mechanisms of MCM7 in CM progress, the expression of MCM7, AKT1, mTOR, cyclin D1, as well as autophagy and apoptosis relative factors, such as LC3B, SOD2, DJ-1, p62, Bcl-2, Bax, and caspase-3 in melanoma cells was determined. MCM7 might mediate the AKT1/mTOR signaling pathway to influence the progress of melanoma. MCM7 silencing contributed to the increased expression of Bax, capase-3, and autophagy-related genes (LC3B, SOD2, and DJ-1), but decreased the expression of Bcl-2, which suggested that MCM7 silencing promoted autophagy and cell apoptosis. At the same time, MCM7 silencing also attenuated cell viability, invasion, and migration, and reduced the cyclin D1 expression and protein levels of p-AKT1 and p-mTOR. Taken together, MCM7 silencing inhibited CM via inactivation of the AKT1/mTOR signaling pathway.
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Affiliation(s)
- Yemei Yang
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Shengfang Ma
- Department of Dermatology, Baoshihua Hospital of Gansu Province, Lanzhou, China
| | - Zi Ye
- College of Information and Sciences, The Pennsylvania State University, Pennsylvania
| | - Xianyi Zhou
- Department of Dermatology and Venerology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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19
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Wang F, Zhang QB, Zhou Y, Chen S, Huang PP, Liu Y, Xu YH. The mechanisms and treatments of muscular pathological changes in immobilization-induced joint contracture: A literature review. Chin J Traumatol 2019; 22:93-98. [PMID: 30928194 PMCID: PMC6488749 DOI: 10.1016/j.cjtee.2019.02.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 10/15/2018] [Accepted: 01/26/2019] [Indexed: 02/04/2023] Open
Abstract
The clinical treatment of joint contracture due to immobilization remains difficult. The pathological changes of muscle tissue caused by immobilization-induced joint contracture include disuse skeletal muscle atrophy and skeletal muscle tissue fibrosis. The proteolytic pathways involved in disuse muscle atrophy include the ubiquitin-proteasome-dependent pathway, caspase system pathway, matrix metalloproteinase pathway, Ca2+-dependent pathway and autophagy-lysosomal pathway. The important biological processes involved in skeletal muscle fibrosis include intermuscular connective tissue thickening caused by transforming growth factor-β1 and an anaerobic environment within the skeletal muscle leading to the induction of hypoxia-inducible factor-1α. This article reviews the progress made in understanding the pathological processes involved in immobilization-induced muscle contracture and the currently available treatments. Understanding the mechanisms involved in immobilization-induced contracture of muscle tissue should facilitate the development of more effective treatment measures for the different mechanisms in the future.
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Affiliation(s)
- Feng Wang
- Department of Rehabilitation Medicine, The Second Hospital of Anhui Medical University, Hefei, 230601, China
| | - Quan-Bing Zhang
- Department of Rehabilitation Medicine, The Second Hospital of Anhui Medical University, Hefei, 230601, China
| | - Yun Zhou
- Department of Rehabilitation Medicine, The Second Hospital of Anhui Medical University, Hefei, 230601, China,Corresponding author.
| | - Shuang Chen
- Department of Rehabilitation Medicine, The Second Hospital of Anhui Medical University, Hefei, 230601, China
| | - Peng-Peng Huang
- Department of Rehabilitation Medicine, The Second Hospital of Anhui Medical University, Hefei, 230601, China
| | - Yi Liu
- Department of Rehabilitation Medicine, The Second Hospital of Anhui Medical University, Hefei, 230601, China
| | - Yuan-Hong Xu
- Department of Clinical Laboratory, The First Hospital of Anhui Medical University, Hefei, 230601, China
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20
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Nakagawa T, Hiraga SI, Mizumura K, Hori K, Ozaki N, Koeda T. Topical thermal therapy with hot packs suppresses physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF. J Physiol Sci 2018; 68:629-637. [PMID: 29027134 PMCID: PMC10717048 DOI: 10.1007/s12576-017-0574-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/02/2017] [Indexed: 10/18/2022]
Abstract
We focused on the analgesic effect of hot packs for mechanical hyperalgesia in physically inactive rats. Male Wistar rats were randomly divided into four groups: control, physical inactivity (PI), PI + sham treatment (PI + sham), and PI + hot pack treatment (PI + hot pack) groups. Physical inactivity rats wore casts on both hind limbs in full plantar flexed position for 4 weeks. Hot pack treatment was performed for 20 min a day, 5 days a week. Although mechanical hyperalgesia and the up-regulation of NGF in the plantar skin and gastrocnemius muscle were observed in the PI and the PI + sham groups, these changes were significantly suppressed in the PI + hot pack group. The present results clearly demonstrated that hot pack treatment was effective in reducing physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF in plantar skin and gastrocnemius muscle.
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Affiliation(s)
- Tatsuki Nakagawa
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan
| | - Shin-Ichiro Hiraga
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan
| | - Kazue Mizumura
- Department of Physical Therapy, College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai, Japan
| | - Kiyomi Hori
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Noriyuki Ozaki
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8640, Japan
| | - Tomoko Koeda
- Faculty of Rehabilitation Sciences, Department of Physical Therapy, Nagoya Gakuin University, 1350 Kamishinano-cho, Seto, 480-1298, Japan.
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21
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Prevention of Burn-Induced Inflammatory Responses and Muscle Wasting by GTS-21, a Specific Agonist for α7 Nicotinic Acetylcholine Receptors. Shock 2018; 47:61-69. [PMID: 27529131 DOI: 10.1097/shk.0000000000000729] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Muscle wasting (MW) in catabolic conditions (e.g., burn injury [BI]) is a major risk factor affecting prognosis. Activation of interleukin-1β (IL-1β)/nuclear factor-kappa B (NF-κB), interleukin-6 (IL-6)/signal transducer and activator of transcription 3 (STAT3), and/or forkhead box O transcriptional factor (FOXO)-mediated gene transcription pathways is the pivotal trigger of inflammatory response-induced protein catabolic processes in muscle. The α7 acetylcholine receptors (α7AChRs) are upregulated in macrophages and peripheral tissues including skeletal muscle during MW conditions. Stimulation of α7AChRs mitigates inflammatory responses. Hypothesis tested is that attenuation of inflammation by α7AChR stimulation with specific α7AChR agonist, GTS-21, will reverse BI-induced body mass and MW by modulating inflammatory and proteolytic signals. METHODS Body surface area (30%) BI or sham BI mice were treated with GTS-21 or saline. Tibialis anterior (TA) muscle was harvested at 6 h, day 1 or 3 to examine inflammatory and proteolytic signals. RESULTS GTS-21 significantly ameliorated the BI-induced increased expression of inflammatory cytokines IL-6, IL-1β, C-X-C motif chemokine ligand 2 (6 h), phosphorylated STAT3, and NF-κB (day 1) in TA muscle. GTS-21 also significantly inhibited BI-induced increase of MuRF1 and FOXO1 (day 1). Consistent with the cytokine and inflammatory mediator changes, BI-induced body weight and TA muscle mass loss at day 3 were mitigated by GTS-21 treatment. The beneficial effect of GTS-21 on BI changes was absent in methyllycaconitine (α7AChR antagonist)-treated wild-type and α7AChR knockout mice. CONCLUSION GTS-21 stimulation of α7AChRs, by modulating multiple molecular signals related to inflammation and proteolysis, attenuates protein wasting, evidenced by maintenance of body weight and attenuation of distant muscle mass loss after BI. GTS-21 can be a novel, potent therapeutic option for reversal of BI-induced MW.
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22
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Kawanishi N, Nozaki R, Naito H, Machida S. TLR4-defective (C3H/HeJ) mice are not protected from cast immobilization-induced muscle atrophy. Physiol Rep 2018; 5:5/8/e13255. [PMID: 28432254 PMCID: PMC5408285 DOI: 10.14814/phy2.13255] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/17/2017] [Accepted: 03/20/2017] [Indexed: 12/25/2022] Open
Abstract
Recent studies have shown that activation of Toll‐like receptor (TLR)4 signaling may be an important factor in muscle atrophy and excessive inflammatory response associated with immobilization. To examine the role of TLR4 signaling on cast immobilization‐induced skeletal muscle atrophy, we tested the hypothesis that muscle atrophy and inflammation after cast immobilization is reduced in TLR4‐defective mice. TLR4‐defective (C3H/HeJ) and wild type (C3H/HeN) mice were divided into control and cast‐immobilization groups. Cast immobilization was imposed for 14 days. Cast immobilization increased TLR4 mRNA expression in the gastrocnemius and decreased muscle mass and cross‐sectional area (CSA) of the gastrocnemius fibers. However, there was no difference in the gastrocnemius muscle mass and CSA between TLR4‐defective and wild type mice. Cast immobilization‐induced increase in ubiquitin E3 ligases (MAFbx/Atrogin‐1 and MuRF1), inflammatory cytokines, and macrophage/monocyte marker mRNAs were unaffected by defective TLR4. Our findings in C3H/HeJ mice suggested that TLR4 signaling might not play an essential role in immobilization‐induced muscle atrophy.
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Affiliation(s)
- Noriaki Kawanishi
- Institute of Health & Sports Science and Medicine, Juntendo University, Chiba, Japan.,Research Fellow of the Japan Society for the Promotion of Sciences, Tokyo, Japan
| | - Risa Nozaki
- Guraduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Hisashi Naito
- Institute of Health & Sports Science and Medicine, Juntendo University, Chiba, Japan.,Guraduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Shuichi Machida
- Institute of Health & Sports Science and Medicine, Juntendo University, Chiba, Japan .,Guraduate School of Health and Sports Science, Juntendo University, Chiba, Japan
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23
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Shen L, Meng X, Zhang Z, Wang T. Physical Exercise for Muscle Atrophy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1088:529-545. [PMID: 30390268 DOI: 10.1007/978-981-13-1435-3_24] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The most direct characteristic of muscle atrophy is reduction in muscle mass, which is due to increased protein degradation or reduced protein synthesis in skeletal muscle. The loss of muscle mass can directly affect the quality of daily life, prolong the recovery period, and become the main risk factor for chronic diseases. However, there is currently no effective way to prevent and treat this disease, and therefore it is imperative to explore effective therapeutic approaches for muscle atrophy. It is well known that physical exercise is important for maintaining good health and long-term adherence to exercise can reduce the risk of cardiovascular diseases, obesity, and diabetes. It is also well established that exercise training can promote the synthesis of muscle protein and activate signaling pathways that regulate the metabolism and function of muscle fibers. Therefore, exercise can be used as a method to treat muscle atrophy in many of these conditions. Mitochondria play an important role in skeletal muscle homeostasis and bioenergy metabolism. Mitochondria are sensitive to contractile signals, and hence exercise can improve mitochondrial function and promote biosynthesis, which ultimately maintains the healthy state of cells and the whole body. On the other hand, frequent unaccustomed exercise will change the structure and function of skeletal muscle fibers, which is called exercise-induced muscle damage. When the exercise-induced muscle damage happens, it can cause temporary muscle damage and soreness, giving a negative effect on the muscle function.
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Affiliation(s)
- Liang Shen
- Physical Education College of Shanghai University, Shanghai, China
| | - Xiangmin Meng
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, China
| | - Zhongrong Zhang
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, China
| | - Tianhui Wang
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, China.
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China.
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24
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Honda Y, Tanaka M, Tanaka N, Sasabe R, Goto K, Kataoka H, Sakamoto J, Nakano J, Okita M. Relationship between extensibility and collagen expression in immobilized rat skeletal muscle. Muscle Nerve 2017; 57:672-678. [PMID: 29130528 DOI: 10.1002/mus.26011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 10/24/2017] [Accepted: 11/07/2017] [Indexed: 12/20/2022]
Abstract
INTRODUCTION This study investigated longitudinal changes in muscle extension and collagen expression in an immobilized rat soleus muscle, and assessed the relationship between both elements. METHODS Soleus muscles of the control and immobilization groups (1, 2, 4, 8, and 12 weeks) were used for analysis of muscle extensibility and collagen expression. RESULTS The slope value/physiological cross-sectional area (PCSA; a parameter for muscle extensibility) and hydroxyproline (a parameter for collagen expression) were significantly higher in the immobilization group than in the control group for all experimental time points. In the immobilization group, both factors were significantly higher at 4, 8, and 12 weeks than at 1 and 2 weeks after immobilization. A significant positive correlation was observed between the slope value/PCSA and hydroxyproline expression. DISCUSSION The present study indicated that a decrease in muscle extensibility depended on collagen overexpression in immobilized rat soleus muscles. Muscle Nerve 57: 672-678, 2018.
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Affiliation(s)
- Yuichiro Honda
- Department of Rehabilitation, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.,Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Miho Tanaka
- Department of Rehabilitation, Iizuka Hospital, Iizuka, Fukuoka, Japan
| | - Natsumi Tanaka
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ryo Sasabe
- Department of Rehabilitation, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.,Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kyo Goto
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hideki Kataoka
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Jiro Nakano
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Minoru Okita
- Department of Locomotive Rehabilitation Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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25
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Goto K, Sakamoto J, Nakano J, Kataoka H, Honda Y, Sasabe R, Origuchi T, Okita M. Development and progression of immobilization-induced skin fibrosis through overexpression of transforming growth factor-ß1 and hypoxic conditions in a rat knee joint contracture model. Connect Tissue Res 2017; 58:586-596. [PMID: 28121187 DOI: 10.1080/03008207.2017.1284823] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE The purpose of this study was to investigate the pathology and mechanism of immobilization-induced skin fibrosis in a rat joint contracture model. METHODS Rats were randomly divided into control and immobilization groups. In the immobilization groups, knee joints of the rats were immobilized for 1, 2, and 4 weeks. After each immobilization, skin was dissected. To assess fibrosis in the skin, the thickness and area of adipocytes and connective tissue fibers were measured. Myofibroblasts were analyzed by immunohistochemistry by using anti-α-SMA as a marker. Gene expression levels of type I and III collagen, TGF-ß1, and HIF-1α were measured by using RT-PCR. RESULTS One week after immobilization, there was a marked increase in the area of connective tissue fibers in the immobilization group. Type I and type III collagen were significantly increased with prolonged immobilization. Higher numbers of α-SMA-positive cells were noted in the immobilized group at 2 and 4 weeks after immobilization. The expression level of TGF-β1 mRNA in the immobilization group increased after one week of immobilization. In contrast, the expression level of HIF1-α mRNA increased after 2 weeks of immobilization, and a greater increase was seen at 4 weeks after immobilization. CONCLUSIONS These results suggest that immobilization induces skin fibrosis with accumulation of types I and III collagen. These fibrotic changes may be evoked by upregulation of TGF-β1 after one week of immobilization. Additionally, upregulation of HIF-1α may relate to skin fibrosis by accelerating the differentiation of fibroblasts to myofibroblasts starting at 2 weeks after immobilization.
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Affiliation(s)
- Kyo Goto
- a Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan.,b Department of Rehabilitation , Nagasaki Memorial Hospital , Nagasaki , Japan
| | - Junya Sakamoto
- c Department of Physical Therapy Science, Unit of Physical and Occupational Therapy Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan
| | - Jiro Nakano
- c Department of Physical Therapy Science, Unit of Physical and Occupational Therapy Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan
| | - Hideki Kataoka
- a Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan.,b Department of Rehabilitation , Nagasaki Memorial Hospital , Nagasaki , Japan
| | - Yuichiro Honda
- a Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan.,d Department of Rehabilitation , Nagasaki University Hospital , Nagasaki , Japan
| | - Ryo Sasabe
- a Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan.,d Department of Rehabilitation , Nagasaki University Hospital , Nagasaki , Japan
| | - Tomoki Origuchi
- a Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan
| | - Minoru Okita
- a Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences , Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan
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26
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Vorobej K, Mitchell AS, Smith IC, Donath S, Russell Tupling A, Quadrilatero J. The effect of ARC ablation on skeletal muscle morphology, function, and apoptotic signaling during aging. Exp Gerontol 2017; 101:69-79. [PMID: 29056555 DOI: 10.1016/j.exger.2017.10.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/11/2017] [Accepted: 10/18/2017] [Indexed: 12/24/2022]
Abstract
Augmented apoptotic signaling can result in degradation of skeletal muscle proteins and loss of myonuclei, ultimately contributing to muscle atrophy and contractile dysfunction. Apoptosis repressor with caspase recruitment domain (ARC) is an anti-apoptotic protein highly expressed in skeletal muscle. Here we examined the role of ARC on age-related skeletal muscle apoptosis and wasting by utilizing an ARC-deficient mouse model. Aged mice displayed a number of morphological, phenotypic, and contractile alterations in both soleus and plantaris muscle with aging. Although no differences were found in proteolytic enzyme activity, ARC protein decreased while several anti-apoptotic proteins (e.g., BCL2, BCLXL, HSP70, and XIAP) and the release of mitochondrial housed protein (i.e., SMAC, AIF) increased in aged muscle. Importantly, ARC KO mice had low muscle weights and fewer fibers in soleus, with 2-year-old ARC KO mice displaying lower mitochondrial BCL2 protein along with augmented release of CYTC and SMAC in red/oxidative muscle. Overall, these results indicate that aged skeletal muscle undergoes atrophy as well as contractile and fiber type composition alterations despite an increase in anti-apoptotic protein expression. Although some mitochondrial-specific apoptotic alterations occurred in skeletal muscle due to ARC ablation over the lifespan, our data suggest that ARC may not have a large influence during skeletal muscle aging.
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Affiliation(s)
- Kira Vorobej
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Andrew S Mitchell
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Ian C Smith
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Stefan Donath
- Max-Delbrück Center for Molecular Medicine, Berlin, Germany; Center for Stroke Research Berlin, Charite-University Medicine, Berlin, Germany; Department of Cardiology and Nephrology, HELIOS Clinics GmbH, Berlin, Germany
| | - A Russell Tupling
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Joe Quadrilatero
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada.
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27
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Yang J, Min S, Xie F, Chen J, Hao X, Ren L. Electroacupuncture alleviates neuromuscular dysfunction in an experimental rat model of immobilization. Oncotarget 2017; 8:85537-85548. [PMID: 29156739 PMCID: PMC5689629 DOI: 10.18632/oncotarget.20246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 07/25/2017] [Indexed: 02/06/2023] Open
Abstract
Immobilization-related skeletal muscle atrophy is a major concern to patients in Intensive Care Units and it has a profound effect on the quality of life. However, the underlying molecular events for the therapeutic effect of electroacupuncture to treat muscle atrophy have not been fully elucidated. Here we developed an immobilization mouse model and tested the hypothesis that skeletal muscle weakness may be caused by the increased expression of γ and α7 nicotinic acetylcholine receptors (nAChRs) on muscle cell membranes, while electroacupuncture could decrease the expression of γ and α7 nicotinic acetylcholine receptors. Compared with the rats in control, those treated with immobilization for 14 days showed a significant reduction of tibialis anterior muscle weight, muscle atrophy and dysfunction, which was associated with a significant decrease expression of neuregulin-1 and increased expression of γ- and α7-nAChR in tibialis anterior muscle. Electroacupuncture significantly enhanced the expression of neuregulin-1 and alleviated the muscle loss, while diminished the expression of γ- and α7-nAChR. Taken together, the beneficial effect of electroacupuncture may be attributed to suppressing γ- and α7-nAChR production, enhancing neuromuscular function and neuregulin-1 protein synthesis. These results suggest that electroacupuncture is a potential therapy for preventing muscle atrophy during immobilization.
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Affiliation(s)
- Jun Yang
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Su Min
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Fei Xie
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jingyuan Chen
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xuechao Hao
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Li Ren
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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28
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Nakazawa H, Chang K, Shinozaki S, Yasukawa T, Ishimaru K, Yasuhara S, Yu YM, Martyn JAJ, Tompkins RG, Shimokado K, Kaneki M. iNOS as a Driver of Inflammation and Apoptosis in Mouse Skeletal Muscle after Burn Injury: Possible Involvement of Sirt1 S-Nitrosylation-Mediated Acetylation of p65 NF-κB and p53. PLoS One 2017; 12:e0170391. [PMID: 28099528 PMCID: PMC5242494 DOI: 10.1371/journal.pone.0170391] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 01/04/2017] [Indexed: 01/28/2023] Open
Abstract
Inflammation and apoptosis develop in skeletal muscle after major trauma, including burn injury, and play a pivotal role in insulin resistance and muscle wasting. We and others have shown that inducible nitric oxide synthase (iNOS), a major mediator of inflammation, plays an important role in stress (e.g., burn)-induced insulin resistance. However, it remains to be determined how iNOS induces insulin resistance. Moreover, the interrelation between inflammatory response and apoptosis is poorly understood, although they often develop simultaneously. Nuclear factor (NF)-κB and p53 are key regulators of inflammation and apoptosis, respectively. Sirt1 inhibits p65 NF-κB and p53 by deacetylating these transcription factors. Recently, we have shown that iNOS induces S-nitrosylation of Sirt1, which inactivates Sirt1 and thereby increases acetylation and activity of p65 NF-κB and p53 in various cell types, including skeletal muscle cells. Here, we show that iNOS enhances burn-induced inflammatory response and apoptotic change in mouse skeletal muscle along with S-nitrosylation of Sirt1. Burn injury induced robust expression of iNOS in skeletal muscle and gene disruption of iNOS significantly inhibited burn-induced increases in inflammatory gene expression and apoptotic change. In parallel, burn increased Sirt1 S-nitrosylation and acetylation and DNA-binding capacity of p65 NF-κB and p53, all of which were reversed or ameliorated by iNOS deficiency. These results indicate that iNOS functions not only as a downstream effector but also as an upstream enhancer of burn-induced inflammatory response, at least in part, by Sirt1 S-nitrosylation-dependent activation (acetylation) of p65 NF-κB. Our data suggest that Sirt1 S-nitrosylation may play a role in iNOS-mediated enhanced inflammatory response and apoptotic change, which, in turn, contribute to muscle wasting and supposedly to insulin resistance after burn injury.
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Affiliation(s)
- Harumasa Nakazawa
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
| | - Kyungho Chang
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
| | - Shohei Shinozaki
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- Department of Geriatrics and Vascular Medicine, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
| | - Takashi Yasukawa
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
| | - Kazuhiro Ishimaru
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
| | - Shingo Yasuhara
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
| | - Yong-Ming Yu
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - J. A. Jeevendra Martyn
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
| | - Ronald. G. Tompkins
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Kentaro Shimokado
- Department of Geriatrics and Vascular Medicine, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
| | - Masao Kaneki
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, United States of America
- Shriners Hospitals for Children, Boston, Massachusetts, United States of America
- * E-mail:
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29
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Kang C, Yeo D, Ji LL. Muscle immobilization activates mitophagy and disrupts mitochondrial dynamics in mice. Acta Physiol (Oxf) 2016; 218:188-197. [PMID: 27083499 DOI: 10.1111/apha.12690] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 03/28/2016] [Accepted: 04/08/2016] [Indexed: 12/23/2022]
Abstract
AIM Skeletal muscle atrophy following prolonged immobilization (IM) is a catabolic state characterized by increased proteolysis and functional deterioration. Previous research indicates that discord of mitochondrial homoeostasis plays a critical role in muscle atrophy. We hypothesized that muscle IM would activate the ubiquitin-proteolysis, autophagy-lysosome (mitophagy) pathway, mitochondrial dynamics remodelling and apoptosis partially controlled by the FoxO signalling pathway. METHODS Female FVB/N mice were randomly divided into five groups (n = 8 each): control (CON), IM with banding of one of the hindlimbs for 1, 2 and 3 weeks (1w-, 2w- and 3w-IM) and 2w-IM followed by 1 week of remobilization (RM). RESULTS Mitochondrial density and DNA copies in tibialis anterior (TA) muscle were reduced by approx. 80% (P < 0.05 for 2w-IM; P < 0.01 for 3w-IM), along with activation of FoxO3a, atrogin-1 and MuRF1 following 2w- and 3w-IM (P < 0.01). Protein markers of autophagy/mitophagy, such as beclin 1 (approx. 2.7-fold; P < 0.01), LC3, ubiquitin-binding adaptor (approx. 1.47-fold; P < 0.01), Rheb (approx. 1.9-fold; P < 0.05) and parkin (approx. 70%; P < 0.05), were all increased by IM and remained activated after RM, whereas BNIP3 and PINK1 levels were decreased by IM (P < 0.05), but elevated upon RM (P < 0.01). IM decreased Mfn2 expression (approx. 50%; P < 0.01) and increased Fis-1 expression (approx. 2.4-fold; P < 0.05). Muscle apoptosis indicator Bax/Bcl2 ratio was elevated at 2w- to 3w-IM (approx. 3.7-fold; P < 0.01), whereas caspase-3 activity was five- to sixfold higher (P < 0.01) and remained threefold higher above CON (P < 0.05). CONCLUSION Our data indicate that IM-induced mitochondrial deterioration is associated with altered protein expressions in the autophagic/mitophagic pathway, more fragmented mitochondrial network and activation of apoptosis partly under the influence of FoxO3 activation.
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Affiliation(s)
- C. Kang
- Laboratory of Physiological Hygiene and Exercise Science; School of Kinesiology; University of Minnesota at Twin Cities; Minneapolis MN USA
| | - D. Yeo
- Laboratory of Physiological Hygiene and Exercise Science; School of Kinesiology; University of Minnesota at Twin Cities; Minneapolis MN USA
| | - L. L. Ji
- Laboratory of Physiological Hygiene and Exercise Science; School of Kinesiology; University of Minnesota at Twin Cities; Minneapolis MN USA
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Gundersen K. Muscle memory and a new cellular model for muscle atrophy and hypertrophy. ACTA ACUST UNITED AC 2016; 219:235-42. [PMID: 26792335 DOI: 10.1242/jeb.124495] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Memory is a process in which information is encoded, stored, and retrieved. For vertebrates, the modern view has been that it occurs only in the brain. This review describes a cellular memory in skeletal muscle in which hypertrophy is 'remembered' such that a fibre that has previously been large, but subsequently lost its mass, can regain mass faster than naive fibres. A new cell biological model based on the literature, with the most reliable methods for identifying myonuclei, can explain this phenomenon. According to this model, previously untrained fibres recruit myonuclei from activated satellite cells before hypertrophic growth. Even if subsequently subjected to grave atrophy, the higher number of myonuclei is retained, and the myonuclei seem to be protected against the elevated apoptotic activity observed in atrophying muscle tissue. Fibres that have acquired a higher number of myonuclei grow faster when subjected to overload exercise, thus the nuclei represent a functionally important 'memory' of previous strength. This memory might be very long lasting in humans, as myonuclei are stable for at least 15 years and might even be permanent. However, myonuclei are harder to recruit in the elderly, and if the long-lasting muscle memory also exists in humans, one should consider early strength training as a public health advice. In addition, myonuclei are recruited during steroid use and encode a muscle memory, at least in rodents. Thus, extending the exclusion time for doping offenders should be considered.
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Affiliation(s)
- Kristian Gundersen
- Department of Biosciences, University of Oslo, Blindernveien 31, Oslo N0316, Norway
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31
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Reilly BD, Franklin CE. Prevention of muscle wasting and osteoporosis: the value of examining novel animal models. J Exp Biol 2016; 219:2582-95. [DOI: 10.1242/jeb.128348] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
ABSTRACT
Bone mass and skeletal muscle mass are controlled by factors such as genetics, diet and nutrition, growth factors and mechanical stimuli. Whereas increased mechanical loading of the musculoskeletal system stimulates an increase in the mass and strength of skeletal muscle and bone, reduced mechanical loading and disuse rapidly promote a decrease in musculoskeletal mass, strength and ultimately performance (i.e. muscle atrophy and osteoporosis). In stark contrast to artificially immobilised laboratory mammals, animals that experience natural, prolonged bouts of disuse and reduced mechanical loading, such as hibernating mammals and aestivating frogs, consistently exhibit limited or no change in musculoskeletal performance. What factors modulate skeletal muscle and bone mass, and what physiological and molecular mechanisms protect against losses of muscle and bone during dormancy and following arousal? Understanding the events that occur in different organisms that undergo natural periods of prolonged disuse and suffer negligible musculoskeletal deterioration could not only reveal novel regulatory factors but also might lead to new therapeutic options. Here, we review recent work from a diverse array of species that has revealed novel information regarding physiological and molecular mechanisms that dormant animals may use to conserve musculoskeletal mass despite prolonged inactivity. By highlighting some of the differences and similarities in musculoskeletal biology between vertebrates that experience disparate modes of dormancy, it is hoped that this Review will stimulate new insights and ideas for future studies regarding the regulation of atrophy and osteoporosis in both natural and clinical models of muscle and bone disuse.
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Affiliation(s)
- Beau D. Reilly
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Craig E. Franklin
- School of Biological Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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Kang S, Kim K, Noh JY, Jung Y, Bae ON, Lim KM, Chung JH. Simvastatin induces the apoptosis of normal vascular smooth muscle through the disruption of actin integrity via the impairment of RhoA/Rac-1 activity. Thromb Haemost 2016; 116:496-505. [PMID: 27306926 DOI: 10.1160/th15-11-0858] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 05/14/2016] [Indexed: 02/02/2023]
Abstract
Statins, lipid-lowering agents for the prevention of atherosclerosis and fatal coronary heart diseases, have pleiotropic modalities on the function and physiology of vascular smooth muscle that include anti-contractile and pro-apoptotic effects. These effects were suggested to stem from the inhibition of small GTPase Rho A, but they are largely regarded as distinct and unrelated. Recently, we discovered that simvastatin causes both contractile dysfunction and apoptosis of vascular smooth muscle cells (VSMCs), reflecting that they may be closely related, yet their connecting link remains unexplained. Here, we elaborated the mechanism underlying simvastatin-induced apoptosis of normal VSMCs in connection with contractile dysfunction. Repeated oral administration of simvastatin to rats in vivo resulted in contractile dysfunction and apoptosis of vascular smooth muscle, of which pattern was well reproduced in rat VSMCs in vitro. Of note, contractile dysfunction and apoptosis occurred in concerted manners both in vivo and in vitro in the aspects of time course and dose of exposure. In rat VSMCs, simvastatin impaired the activation of small GTPases, RhoA along with Rac-1, which resulted in the disruption of actin integrity, a pivotal factor both for the generation of contractile force and survival of VSMCs. In line with the disruption of actin integrity, Bmf, a pro-apoptotic factor bound to intact actin, dissociated and translocated into mitochondria, which corresponded well with the dissipation of mitochondrial membrane potential, caspase-3 activation and ultimately apoptosis. These events were all rescued by an actin stabilisation agent, jasplakinolide as well as geranylgeraniol, indicating that damages of the actin integrity from disrupted activation of RhoA/Rac-1 lies at the center of simvastatin-induced contractile dysfunction and apoptosis in vascular smooth muscle.
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Affiliation(s)
| | | | | | | | | | - Kyung-Min Lim
- Kyung-Min Lim, Ewha Womans University, Seoul, Korea, E-mail:
| | - Jin-Ho Chung
- Jin-Ho Chung, Seoul National University, Seoul, Korea, E-mail:
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Shiota C, Abe T, Kawai N, Ohno A, Teshima-Kondo S, Mori H, Terao J, Tanaka E, Nikawa T. Flavones Inhibit LPS-Induced Atrogin-1/MAFbx Expression in Mouse C2C12 Skeletal Myotubes. J Nutr Sci Vitaminol (Tokyo) 2016; 61:188-94. [PMID: 26052151 DOI: 10.3177/jnsv.61.188] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Muscle atrophy is a complex process that occurs as a consequence of various stress events. Muscle atrophy-associated genes (atrogenes) such as atrogin-1/MAFbx and MuRF-1 are induced early in the atrophy process, and the increase in their expression precedes the loss of muscle weight. Although antioxidative nutrients suppress atrogene expression in skeletal muscle cells, the inhibitory effects of flavonoids on inflammation-induced atrogin-1/MAFbx expression have not been clarified. Here, we investigated the inhibitory effects of flavonoids on lipopolysaccharide (LPS)-induced atrogin-1/MAFbx expression. We examined whether nine flavonoids belonging to six flavonoid categories inhibited atrogin-1/MAFbx expression in mouse C2C12 myotubes. Two major flavones, apigenin and luteolin, displayed potent inhibitory effects on atrogin-1/MAFbx expression. The pretreatment with apigenin and luteolin significantly prevented the decrease in C2C12 myotube diameter caused by LPS stimulation. Importantly, the pretreatment of LPS-stimulated myoblasts with these flavones significantly inhibited LPS-induced JNK phosphorylation in C2C12 myotubes, resulting in the significant suppression of atrogin-1/MAFbx promoter activity. These results suggest that apigenin and luteolin, prevent LPS-mediated atrogin-1/MAFbx expression through the inhibition of the JNK signaling pathway in C2C12 myotubes. Thus, these flavones, apigenin and luteolin, may be promising agents to prevent LPS-induced muscle atrophy.
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Affiliation(s)
- Chieko Shiota
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School
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Dong Y, Zhao H, Yang L, Zhao Y, Ma C, Zhang C. Effects of Neurotrophin-3 Plasmids on Myocyte Apoptosis and Ca2+-ATPase Content in the Muscle After Nerve Injury in Rats. NEUROPHYSIOLOGY+ 2016. [DOI: 10.1007/s11062-016-9553-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nagano K. Alteration of cathepsin-D expression in atrophied muscles and apoptotic myofibers by hindlimb unloading in a low-temperature environment. J Phys Ther Sci 2015; 27:3585-91. [PMID: 26696743 PMCID: PMC4681950 DOI: 10.1589/jpts.27.3585] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 08/24/2015] [Indexed: 01/20/2023] Open
Abstract
[Purpose] The purpose of this study was to elucidate the cathepsin-D involvement in
signaling pathways for the survival and apoptosis of myofibers in rats with
hindlimb-unloading in a low-temperature environment. [Subjects and Methods] Wistar rats
were divided into two groups: a control group and a group that underwent hindlimb
unloading in a low-temperature environment to induce muscle apoptosis. Cathepsin-D
localization in the soleus and extensor digitorum longus muscles, along with the
expression of cathepsin-D in apoptotic myofibers, was examined. Expression of the active
and inactive forms of cathepsin-D was also analyzed. [Results] Cathepsin-D was mainly
expressed in type I myofibers and was observed to have punctate patterns in the control
group. In the hindlimb unloading in a low-temperature environment group, the type I
myofiber composition ratio decreased, and caspase-3 activation and TUNEL-positive
apoptotic myofibers were observed. In caspase-3-activated myofibers, cathepsin-D
overexpression and leakage of it into the cytoplasm were observed. In the hindlimb
unloading in a low-temperature environment group, the amount of inactive cathepsin-D
decreased, whereas that of the active form increased. [Conclusion] Cathepsin-D was deduced
to be indicative of a myofiber-type classification and a factor related to myofiber type
maintenance. In addition, cathepsin-D leakage into the cytoplasm was appeared to be
involved in caspase-3 activation in the hindlimb unloading in a low-temperature
environment group.
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Affiliation(s)
- Katsuhito Nagano
- Department of Physical Therapy, Faculty of Rehabilitation, Fukui College of Health Sciences, Japan
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36
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Dong YZ, Yang L, Lu T, Zhao HX, Ma C, Zhao YL. Effects of exogenous neurotrophin-3 on myocyte apoptosis and Ca(2+)-ATP enzyme levels following nerve injury in rats. Int J Clin Exp Med 2015; 8:19635-19641. [PMID: 26770627 PMCID: PMC4694527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/30/2015] [Indexed: 06/05/2023]
Abstract
This study aims to determine the influence of neurotrophin-3 (NT-3) plasmids on neuronal apoptosis and Ca(2+)-ATP enzyme levels in injured muscles. We also investigated the mechanism underlying the role of NT-3 in delaying muscle atrophy following a peripheral nerve injury. Sixty adult Wistar rats were used to generate the peripheral nerve injury models. The rats were randomly assigned to the saline and NT-3 groups. Related indicators, such as caspase-3 protein expression, skeletal muscle cell apoptosis, and Ca(2+)-ATP enzyme expression were quantified. The expression levels of caspase-3 and the histone-muscle cell apoptosis rate in the NT-3 group decreased at different post-operative times following peripheral nerve injury, whereas NT-3 expression and the sarcoplasmic reticulum Ca(2+)-ATP enzyme levels increased. Statistically significant differences were observed in the NT-3 group as compared to the saline group (P < 0.05). NT-3 mitigated muscle atrophy following peripheral nerve damage by inhibiting caspase-3 gene expression and increasing Ca(2+)-ATP enzymatic activity, ultimately reducing muscle apoptosis.
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Affiliation(s)
- Yu-Zhen Dong
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University Weihui 453100, China
| | - Lin Yang
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University Weihui 453100, China
| | - Tan Lu
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University Weihui 453100, China
| | - Hong-Xing Zhao
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University Weihui 453100, China
| | - Chao Ma
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University Weihui 453100, China
| | - Yi-Lei Zhao
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University Weihui 453100, China
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Honda Y, Sakamoto J, Nakano J, Kataoka H, Sasabe R, Goto K, Tanaka M, Origuchi T, Yoshimura T, Okita M. Upregulation of interleukin-1β/transforming growth factor-β1 and hypoxia relate to molecular mechanisms underlying immobilization-induced muscle contracture. Muscle Nerve 2015; 52:419-27. [DOI: 10.1002/mus.24558] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2014] [Indexed: 12/20/2022]
Affiliation(s)
- Yuichiro Honda
- Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Sakamoto 1-7-1 Nagasaki 852-8520 Japan
- Department of Rehabilitation; Nagasaki University Hospital; Nagasaki Japan
| | - Junya Sakamoto
- Department of Physical Therapy Science, Unit of Physical and Occupational Therapy Sciences; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Jiro Nakano
- Department of Physical Therapy Science, Unit of Physical and Occupational Therapy Sciences; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Hideki Kataoka
- Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Sakamoto 1-7-1 Nagasaki 852-8520 Japan
| | - Ryo Sasabe
- Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Sakamoto 1-7-1 Nagasaki 852-8520 Japan
- Department of Rehabilitation; Nagasaki University Hospital; Nagasaki Japan
| | - Kyo Goto
- Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Sakamoto 1-7-1 Nagasaki 852-8520 Japan
| | - Miho Tanaka
- Department of Physical Therapy Science, Unit of Physical and Occupational Therapy Sciences; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
| | - Tomoki Origuchi
- Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Sakamoto 1-7-1 Nagasaki 852-8520 Japan
| | - Toshiro Yoshimura
- Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Sakamoto 1-7-1 Nagasaki 852-8520 Japan
| | - Minoru Okita
- Department of Locomotive Rehabilitation Science, Unit of Rehabilitation Sciences; Nagasaki University Graduate School of Biomedical Sciences; Sakamoto 1-7-1 Nagasaki 852-8520 Japan
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Wiggs MP. Can endurance exercise preconditioning prevention disuse muscle atrophy? Front Physiol 2015; 6:63. [PMID: 25814955 PMCID: PMC4356230 DOI: 10.3389/fphys.2015.00063] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/17/2015] [Indexed: 12/18/2022] Open
Abstract
Emerging evidence suggests that exercise training can provide a level of protection against disuse muscle atrophy. Endurance exercise training imposes oxidative, metabolic, and heat stress on skeletal muscle which activates a variety of cellular signaling pathways that ultimately leads to the increased expression of proteins that have been demonstrated to protect muscle from inactivity -induced atrophy. This review will highlight the effect of exercise-induced oxidative stress on endogenous enzymatic antioxidant capacity (i.e., superoxide dismutase, glutathione peroxidase, and catalase), the role of oxidative and metabolic stress on PGC1-α, and finally highlight the effect heat stress and HSP70 induction. Finally, this review will discuss the supporting scientific evidence that these proteins can attenuate muscle atrophy through exercise preconditioning.
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Affiliation(s)
- Michael P Wiggs
- Department of Applied Physiology and Kinesiology, Center for Exercise Science, University of Florida Gainesville, FL, USA
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Zhang RP, Liu HH, Li QQ, Wang Y, Liu JY, Hu JW, Yan XP, Gou H, Li L, Wang JW. Gene expression patterns, and protein metabolic and histological analyses for muscle development in Peking duck. Poult Sci 2014; 93:3104-11. [PMID: 25306455 DOI: 10.3382/ps.2014-04145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In this study, we aimed to use duck breast muscle and leg muscle, the 2 main productive muscle organs, as a model to elucidate the molecular mechanism controlling how the 2 muscles have different deposition capabilities, and to analyze the mechanisms facilitating duck muscle development posthatching. Peking duck breast muscle and leg muscle were collected 3, 7, and 16 wk posthatching. The morphology of the myofibers was observed by paraffin sectioning the muscles. The expression of genes involved in protein metabolism [mammalian target of rapamycin (mTOR), RPS6-p70-protein kinase (S6K), forkhead box O1 (FoxO1), muscle RING finger 1 (MuRF1), and atrogin-1 (MAFbx)] was detected using real-time quantitative PCR and Western blot assays, and the results indicated that breast muscle had a stronger capacity for both protein synthesis and protein degradation compared with leg muscle. Satellite cell frequency declined during muscle development in both tissues, and the expression of Pax3/7, satellite cell marker genes, was not significantly different between breast muscle and leg muscle. No notable apoptosis was observed in either tissue. The results of this study suggest that protein metabolism signaling is the main reason promoting duck skeletal muscle mass gain.
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Affiliation(s)
- Rong-Ping Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - He-He Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Qing-Qing Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Jun-Ying Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Ji-Wei Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Xi-Ping Yan
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Hua Gou
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Liang Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
| | - Ji-Wen Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China
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Vitamin E in sarcopenia: current evidences on its role in prevention and treatment. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:914853. [PMID: 25097722 PMCID: PMC4109111 DOI: 10.1155/2014/914853] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 06/06/2014] [Indexed: 01/01/2023]
Abstract
Sarcopenia is a geriatric syndrome that is characterized by gradual loss of muscle mass and strength with increasing age. Although the underlying mechanism is still unknown, the contribution of increased oxidative stress in advanced age has been recognized as one of the risk factors of sarcopenia. Thus, eliminating reactive oxygen species (ROS) can be a strategy to combat sarcopenia. In this review, we discuss the potential role of vitamin E in the prevention and treatment of sarcopenia. Vitamin E is a lipid soluble vitamin, with potent antioxidant properties and current evidence suggesting a role in the modulation of signaling pathways. Previous studies have shown its possible beneficial effects on aging and age-related diseases. Although there are evidences suggesting an association between vitamin E and muscle health, they are still inconclusive compared to other more extensively studied chronic diseases such as neurodegenerative diseases and cardiovascular diseases. Therefore, we reviewed the role of vitamin E and its potential protective mechanisms on muscle health based on previous and current in vitro and in vivo studies.
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Immobilization with atrophy induces de novo expression of neuronal nicotinic α7 acetylcholine receptors in muscle contributing to neurotransmission. Anesthesiology 2014; 120:76-85. [PMID: 24126263 DOI: 10.1097/aln.0000000000000025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Mature acetylcholine receptor (AChR) isoform normally mediates muscle contraction. The hypothesis that α7AChRs up-regulate during immobilization and contribute to neurotransmission was tested pharmacologically using specific blockers to mature (waglerin-1), immature (αA-OIVA), and α7AChRs (methyllycaconitine), and nonspecific muscle AChR antagonist, α-bungarotoxin. METHODS Mice were immobilized; contralateral limbs were controls. Fourteen days later, anesthetized mice were mechanically ventilated. Nerve-stimulated tibialis muscle contractions on both sides were recorded, and blockers enumerated above sequentially administered via jugular vein. Data are mean ± standard error. RESULTS Immobilization (N = 7) induced tibialis muscle atrophy (40.6 ± 2.8 vs. 52.1 ± 2.0 mg; P < 0.01) and decrease of twitch tension (34.8 ± 1.1 vs. 42.9 ± 1.5 g; P < 0.01). Waglerin-1 (0.3 ± 0.05 μg/g) significantly (P = 0.001; N = 9) depressed twitch tension on contralateral (≥97%) versus immobilized side (approximately 45%). Additional waglerin-1 (total dose 1.06 ± 0.12 μg/g or approximately 15.0 × ED50 in normals) could not depress twitch of 80% or greater on immobilized side. Immature AChR blocker, αA-OIVA (17.0 ± 0.25 μg/g) did not change tension bilaterally. Administration of α-bungarotoxin (N = 4) or methyllycaconitine (N = 3) caused 96% or greater suppression of the remaining twitch tension on immobilized side. Methyllycaconitine, administered first (N = 3), caused equipotent inhibition by waglerin-1 on both sides. Protein expression of α7AChRs was significantly (N = 3; P < 0.01) increased on the immobilized side. CONCLUSIONS Ineffectiveness of waglerin-1 suggests that the twitch tension during immobilization is maintained by receptors other than mature AChRs. Because αA-OIVA caused no neuromuscular changes, it can be concluded that immature AChRs contribute minimally to neurotransmission. During immobilization approximately 20% of twitch tension is maintained by up-regulation of α-bungarotoxin- and methyllycaconitine-sensitive α7AChRs.
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Alway SE, Bennett BT, Wilson JC, Edens NK, Pereira SL. Epigallocatechin-3-gallate improves plantaris muscle recovery after disuse in aged rats. Exp Gerontol 2013; 50:82-94. [PMID: 24316035 DOI: 10.1016/j.exger.2013.11.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 11/20/2013] [Accepted: 11/22/2013] [Indexed: 12/21/2022]
Abstract
Aging exacerbates muscle loss and slows the recovery of muscle mass and function after disuse. In this study we investigated the potential that epigallocatechin-3-gallate (EGCg), an abundant catechin in green tea, would reduce signaling for apoptosis and promote skeletal muscle recovery in the fast plantaris muscle and the slow soleus muscle after hindlimb suspension (HLS) in senescent animals. Fischer 344 × Brown Norway inbred rats (age 34 months) received either EGCg (50 mg/kg body weight), or water daily by gavage. One group of animals received HLS for 14 days and a second group of rats received 14 days of HLS, then the HLS was removed and they recovered from this forced disuse for 2 weeks. Animals that received EGCg over the HLS followed by 14 days of recovery, had a 14% greater plantaris muscle weight (p<0.05) as compared to the animals treated with the vehicle over this same period. Plantaris fiber area was greater after recovery in EGCg (2715.2±113.8 μm(2)) vs. vehicle treated animals (1953.0±41.9 μm(2)). In addition, activation of myogenic progenitor cells was improved with EGCg over vehicle treatment (7.5% vs. 6.2%) in the recovery animals. Compared to vehicle treatment, the apoptotic index was lower (0.24% vs. 0.52%), and the abundance of pro-apoptotic proteins Bax (-22%), and FADD (-77%) was lower in EGCg treated plantaris muscles after recovery. While EGCg did not prevent unloading-induced atrophy, it improved muscle recovery after the atrophic stimulus in fast plantaris muscles. However, this effect was muscle specific because EGCg had no major impact in reversing HLS-induced atrophy in the slow soleus muscle of old rats.
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Affiliation(s)
- Stephen E Alway
- Laboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV 26506-9227, United States; West Virginia Center for Clinical and Translational Science Institute, West Virginia University School of Medicine, Morgantown, WV 26506-9227, United States; Center for Cardiovascular and Respiratory Sciences, West Virginia University School of Medicine, Morgantown, WV 26506-9227, United States.
| | - Brian T Bennett
- Laboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV 26506-9227, United States; Center for Cardiovascular and Respiratory Sciences, West Virginia University School of Medicine, Morgantown, WV 26506-9227, United States
| | - Joseph C Wilson
- Laboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV 26506-9227, United States; Center for Cardiovascular and Respiratory Sciences, West Virginia University School of Medicine, Morgantown, WV 26506-9227, United States
| | - Neile K Edens
- Discovery R&D, Abbott Nutrition, Columbus, OH, United States
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Valladares D, Almarza G, Contreras A, Pavez M, Buvinic S, Jaimovich E, Casas M. Electrical stimuli are anti-apoptotic in skeletal muscle via extracellular ATP. Alteration of this signal in Mdx mice is a likely cause of dystrophy. PLoS One 2013; 8:e75340. [PMID: 24282497 PMCID: PMC3839923 DOI: 10.1371/journal.pone.0075340] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 08/11/2013] [Indexed: 12/20/2022] Open
Abstract
ATP signaling has been shown to regulate gene expression in skeletal muscle and to be altered in models of muscular dystrophy. We have previously shown that in normal muscle fibers, ATP released through Pannexin1 (Panx1) channels after electrical stimulation plays a role in activating some signaling pathways related to gene expression. We searched for a possible role of ATP signaling in the dystrophy phenotype. We used muscle fibers from flexor digitorum brevis isolated from normal and mdx mice. We demonstrated that low frequency electrical stimulation has an anti-apoptotic effect in normal muscle fibers repressing the expression of Bax, Bim and PUMA. Addition of exogenous ATP to the medium has a similar effect. In dystrophic fibers, the basal levels of extracellular ATP were higher compared to normal fibers, but unlike control fibers, they do not present any ATP release after low frequency electrical stimulation, suggesting an uncoupling between electrical stimulation and ATP release in this condition. Elevated levels of Panx1 and decreased levels of Cav1.1 (dihydropyridine receptors) were found in triads fractions prepared from mdx muscles. Moreover, decreased immunoprecipitation of Cav1.1 and Panx1, suggest uncoupling of the signaling machinery. Importantly, in dystrophic fibers, exogenous ATP was pro-apoptotic, inducing the transcription of Bax, Bim and PUMA and increasing the levels of activated Bax and cytosolic cytochrome c. These evidence points to an involvement of the ATP pathway in the activation of mechanisms related with cell death in muscular dystrophy, opening new perspectives towards possible targets for pharmacological therapies.
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Affiliation(s)
- Denisse Valladares
- Centro de Estudios Moleculares de la Célula, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Gonzalo Almarza
- Centro de Estudios Moleculares de la Célula, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Ariel Contreras
- Centro de Estudios Moleculares de la Célula, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mario Pavez
- Centro de Estudios Moleculares de la Célula, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Sonja Buvinic
- Centro de Estudios Moleculares de la Célula, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Departamento de Ciencias Básicas y Comunitarias, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Enrique Jaimovich
- Centro de Estudios Moleculares de la Célula, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Mariana Casas
- Centro de Estudios Moleculares de la Célula, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- * E-mail:
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Khan MAS, Sahani N, Neville KA, Nagashima M, Lee S, Sasakawa T, Kaneki M, Martyn JAJ. Nonsurgically induced disuse muscle atrophy and neuromuscular dysfunction upregulates alpha7 acetylcholine receptors. Can J Physiol Pharmacol 2013; 92:1-8. [PMID: 24383867 DOI: 10.1139/cjpp-2013-0063] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Previous models of muscle disuse have invariably used surgical methods that require the repetitive application of plaster casts. A method of disuse atrophy that does not require such repetitive applications is described herein. Modified plastic pipette tubing was applied to a single hindlimb (mouse), from thigh to foot, resulting in immobilization of the knee in the extension position, and the ankle in the plantar flexion position. This method resulted in the loss of soleus muscle to 11%, 22%, 39%, and 45% of its original mass at 3, 7, 14, and 21 days, respectively, in association with a significant decrease of tibialis twitch (25%) and tetanic tensions (26%) at 21 days, compared with the contralateral side and (or) sham-immobilized controls. Immunohistochemical analysis of the soleus using fluorescent α-bungarotoxin revealed a significant increase in the number of synapses per unit area (818 + 31 compared with 433 + 16/mm(2)) and an increase in muscle fibers per unit area (117 compared with 83/mm(2)), most likely related to the atrophy of muscle fibers bringing synapses closer. A 3-fold increase in alpha7 acetylcholine receptor (α7AChR) protein expression, along with increased expression of α1AChR subunit in the immobilized side compared with the contralateral side was observed. The physiology and pharmacology of the novel finding of upregulation of α7AChRs with disuse requires further study.
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Affiliation(s)
- Mohammed A S Khan
- Department of Anesthesia, Critical Care and Pain Medicine, Shriners Hospitals for Children®, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
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