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Yu M, Feng Y, Yan J, Zhang X, Tian Z, Wang T, Wang J, Shen W. Transcriptomic regulatory analysis of skeletal muscle development in landrace pigs. Gene 2024; 915:148407. [PMID: 38531491 DOI: 10.1016/j.gene.2024.148407] [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: 10/17/2023] [Revised: 12/28/2023] [Accepted: 03/21/2024] [Indexed: 03/28/2024]
Abstract
The development of pig skeletal muscle is a complex dynamic regulation process, which mainly includes the formation of primary and secondary muscle fibers, the remodeling of muscle fibers, and the maturation of skeletal muscle; However, the regulatory mechanism of the entire developmental process remains unclear. This study analyzed the whole-transcriptome data of skeletal muscles at 27 developmental nodes (E33-D180) in Landrace pigs, and their key regulatory factors in the development process were identified using the bioinformatics method. Firstly, we constructed a transcriptome expression map of skeletal muscle development from embryo to adulthood in Landrace pig. Subsequently, due to drastic change in gene expression, the perinatal periods including E105, D0 and D9, were focused, and the genes related to the process of muscle fiber remodeling and volume expansion were revealed. Then, though conjoint analysis with miRNA and lncRNA transcripts, a ceRNA network were identified, which consist of 11 key regulatory genes (such as CHAC1, RTN4IP1 and SESN1), 7 miRNAs and 43 lncRNAs, and they potentially play an important role in the process of muscle fiber differentiation, muscle fiber remodeling and volume expansion, intramuscular fat deposition, and other skeletal muscle developmental events. In summary, we reveal candidate genes and underlying molecular regulatory networks associated with perinatal skeletal muscle fiber type remodeling and expansion. These data provide new insights into the molecular regulation of mammalian skeletal muscle development and diversity.
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Affiliation(s)
- Mubin Yu
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Yanqin Feng
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jiamao Yan
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiaoyuan Zhang
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Zhe Tian
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Tao Wang
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Junjie Wang
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China.
| | - Wei Shen
- Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China.
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Abi Akar E, Weill L, El Khoury M, Caradeuc C, Bertho G, Boutary S, Bezier C, Clerc Z, Sapaly D, Bendris S, Cheguillaume F, Giraud N, Eid AA, Charbonnier F, Biondi O. The analysis of the skeletal muscle metabolism is crucial for designing optimal exercise paradigms in type 2 diabetes mellitus. Mol Med 2024; 30:80. [PMID: 38858657 PMCID: PMC11165837 DOI: 10.1186/s10020-024-00850-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/29/2024] [Indexed: 06/12/2024] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease that commonly results from a high-calorie diet and sedentary lifestyle, leading to insulin resistance and glucose homeostasis perturbation. Physical activity is recommended as one first-line treatment in T2DM, but it leads to contrasted results. We hypothesized that, instead of applying standard exercise protocols, the prescription of personalized exercise programs specifically designed to reverse the potential metabolic alterations in skeletal muscle could result in better results. METHODS To test this hypothesis, we drew the metabolic signature of the fast-twitch quadriceps muscle, based on a combined unbiased NMR spectroscopy and RT-qPCR study, in several T2DM mouse models of different genetic background (129S1/SvImJ, C57Bl/6J), sex and aetiology (high-fat diet (HFD) or HFD/Streptozotocin (STZ) induction or transgenic MKR (FVB-Tg Ckm-IGF1R*K1003R)1Dlr/J) mice. Three selected mouse models with unique muscular metabolic signatures were submitted to three different swimming-based programs, designed to address each metabolic specificity. RESULTS We found that depending on the genetic background, the sex, and the mode of T2DM induction, specific muscular adaptations occurred, including depressed glycolysis associated with elevated PDK4 expression, shift to β-oxidation, or deregulation of amino-acid homeostasis. Interestingly, dedicated swimming-based exercises designed to restore specific metabolic alterations in muscle were found optimal in improving systemic T2DM hallmarks, including a significant reduction in insulin resistance, the improvement of glucose homeostasis, and a delay in sensorimotor function alterations. CONCLUSION The muscle metabolism constitutes an important clue for the design of precision exercises with potential clinical implications for T2DM patients.
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MESH Headings
- Animals
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/therapy
- Diabetes Mellitus, Type 2/genetics
- Muscle, Skeletal/metabolism
- Physical Conditioning, Animal
- Mice
- Male
- Female
- Disease Models, Animal
- Diet, High-Fat/adverse effects
- Mice, Inbred C57BL
- Insulin Resistance
- Metabolome
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/therapy
- Mice, Transgenic
- Metabolomics/methods
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Affiliation(s)
- Elias Abi Akar
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine and Medical Center, American University of Beirut, Bliss Street, 11-0236, Riad El-Solh, Beirut, 1107-2020, Lebanon
| | - Laure Weill
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Mirella El Khoury
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Cédric Caradeuc
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & UMR8601 CNRS, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Gildas Bertho
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & UMR8601 CNRS, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Suzan Boutary
- Inserm U1195, Bâtiment Gregory Pincus, 80 rue du Général Leclerc, 94276, Le Kremlin Bicêtre, France
| | - Cynthia Bezier
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Zoé Clerc
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Delphine Sapaly
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Sabrina Bendris
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Flore Cheguillaume
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Nicolas Giraud
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & UMR8601 CNRS, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
| | - Assaad A Eid
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine and Medical Center, American University of Beirut, Bliss Street, 11-0236, Riad El-Solh, Beirut, 1107-2020, Lebanon.
| | - Frédéric Charbonnier
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France.
| | - Olivier Biondi
- Faculty of Basic and Biomedical Sciences, Université Paris Cité & Inserm UMR_S1124, 45 rue des Saints-Pères, 75270, Paris Cedex 06, France
- Laboratoire de Biologie de l'Exercice Pour la Performance et la Santé (LBEPS), UMR, Université d'Evry, IRBA, Université de Paris Saclay, 91025, Evry-Courcouronnes, France
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3
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Flück M, Sanchez C, Jacquemond V, Berthier C, Giraud MN, Jacko D, Bersiner K, Gehlert S, Baan G, Jaspers RT. Enhanced capacity for CaMKII signaling mitigates calcium release related contractile fatigue with high intensity exercise. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119610. [PMID: 37913845 DOI: 10.1016/j.bbamcr.2023.119610] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/27/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND We tested whether enhancing the capacity for calcium/calmodulin-dependent protein kinase type II (CaMKII) signaling would delay fatigue of excitation-induced calcium release and improve contractile characteristics of skeletal muscle during fatiguing exercise. METHODS Fast and slow type muscle, gastrocnemius medialis (GM) and soleus (SOL), of rats and mouse interosseus (IO) muscle fibers, were transfected with pcDNA3-based plasmids for rat α and β CaMKII or empty controls. Levels of CaMKII, its T287-phosphorylation (pT287-CaMKII), and phosphorylation of components of calcium release and re-uptake, ryanodine receptor 1 (pS2843-RyR1) and phospholamban (pT17-PLN), were quantified biochemically. Sarcoplasmic calcium in transfected muscle fibers was monitored microscopically during trains of electrical excitation based on Fluo-4 FF fluorescence (n = 5-7). Effects of low- (n = 6) and high- (n = 8) intensity exercise on pT287-CaMKII and contractile characteristics were studied in situ. RESULTS Co-transfection with αCaMKII-pcDNA3/βCaMKII-pcDNA3 increased α and βCaMKII levels in SOL (+45.8 %, +250.5 %) and GM (+40.4 %, +89.9 %) muscle fibers compared to control transfection. High-intensity exercise increased pT287-βCaMKII and pS2843-RyR1 levels in SOL (+269 %, +151 %) and GM (+354 %, +119 %), but decreased pT287-αCaMKII and p17-PLN levels in GM compared to SOL (-76 % vs. +166 %; 0 % vs. +128 %). α/β CaMKII overexpression attenuated the decline of calcium release in muscle fibers with repeated excitation, and mitigated exercise-induced deterioration of rates in force production, and passive force, in a muscle-dependent manner, in correlation with pS2843-RyR1 and pT17-PLN levels (|r| > 0.7). CONCLUSION Enhanced capacity for α/β CaMKII signaling improves fatigue-resistance of active and passive contractile muscle properties in association with RyR1- and PLN-related improvements in sarcoplasmic calcium release.
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Affiliation(s)
- Martin Flück
- Department of Medicine, University of Fribourg, Switzerland; Manchester Metropolitan University, United Kingdom.
| | - Colline Sanchez
- University of Lyon, Université Claude Bernard Lyon 1, CNRS UMR-5261, INSERM U-1315, Institut NeuroMyoGène - Pathophysiology and Genetics of Neuron and Muscle, 69008 Lyon, France
| | - Vincent Jacquemond
- University of Lyon, Université Claude Bernard Lyon 1, CNRS UMR-5261, INSERM U-1315, Institut NeuroMyoGène - Pathophysiology and Genetics of Neuron and Muscle, 69008 Lyon, France
| | - Christine Berthier
- University of Lyon, Université Claude Bernard Lyon 1, CNRS UMR-5261, INSERM U-1315, Institut NeuroMyoGène - Pathophysiology and Genetics of Neuron and Muscle, 69008 Lyon, France
| | | | - Daniel Jacko
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Germany
| | - Käthe Bersiner
- Department of Biosciences of Sports, Institute for Sports Sciences, University of Hildesheim, Hildesheim, Germany
| | - Sebastian Gehlert
- Department of Biosciences of Sports, Institute for Sports Sciences, University of Hildesheim, Hildesheim, Germany
| | - Guus Baan
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 1081 HZ Amsterdam, the Netherlands
| | - Richard T Jaspers
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 1081 HZ Amsterdam, the Netherlands
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4
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Ma J, Wang PY, Zhuang J, Son AY, Karius AK, Syed AM, Nishi M, Wu Z, Mori MP, Kim YC, Hwang PM. CHCHD4-TRIAP1 regulation of innate immune signaling mediates skeletal muscle adaptation to exercise. Cell Rep 2024; 43:113626. [PMID: 38157298 PMCID: PMC10851177 DOI: 10.1016/j.celrep.2023.113626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 10/20/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024] Open
Abstract
Exercise training can stimulate the formation of fatty-acid-oxidizing slow-twitch skeletal muscle fibers, which are inversely correlated with obesity, but the molecular mechanism underlying this transformation requires further elucidation. Here, we report that the downregulation of the mitochondrial disulfide relay carrier CHCHD4 by exercise training decreases the import of TP53-regulated inhibitor of apoptosis 1 (TRIAP1) into mitochondria, which can reduce cardiolipin levels and promote VDAC oligomerization in skeletal muscle. VDAC oligomerization, known to facilitate mtDNA release, can activate cGAS-STING/NFKB innate immune signaling and downregulate MyoD in skeletal muscle, thereby promoting the formation of oxidative slow-twitch fibers. In mice, CHCHD4 haploinsufficiency is sufficient to activate this pathway, leading to increased oxidative muscle fibers and decreased fat accumulation with aging. The identification of a specific mediator regulating muscle fiber transformation provides an opportunity to understand further the molecular underpinnings of complex metabolic conditions such as obesity and could have therapeutic implications.
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Affiliation(s)
- Jin Ma
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Ping-Yuan Wang
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Jie Zhuang
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA; School of Medicine, Nankai University, Tianjin 300071, China
| | - Annie Y Son
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Alexander K Karius
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Abu Mohammad Syed
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Masahiro Nishi
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Zhichao Wu
- Laboratory of Pathology, National Cancer Institute (NCI), NIH, Bethesda, MD 20892, USA
| | - Mateus P Mori
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Young-Chae Kim
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA
| | - Paul M Hwang
- Cardiovascular Branch, National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD 20892, USA.
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5
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Just-Borràs L, Cilleros-Mañé V, Polishchuk A, Balanyà-Segura M, Tomàs M, Garcia N, Tomàs J, Lanuza MA. TrkB signaling is correlated with muscular fatigue resistance and less vulnerability to neurodegeneration. Front Mol Neurosci 2022; 15:1069940. [PMID: 36618825 PMCID: PMC9813967 DOI: 10.3389/fnmol.2022.1069940] [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: 10/14/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
At the neuromuscular junction (NMJ), motor neurons and myocytes maintain a bidirectional communication that guarantees adequate functionality. Thus, motor neurons' firing pattern, which is influenced by retrograde muscle-derived neurotrophic factors, modulates myocyte contractibility. Myocytes can be fast-twitch fibers and become easily fatigued or slow-twitch fibers and resistant to fatigue. Extraocular muscles (EOM) show mixed properties that guarantee fast contraction speed and resistance to fatigue and the degeneration caused by Amyotrophic lateral sclerosis (ALS) disease. The TrkB signaling is an activity-dependent pathway implicated in the NMJ well-functioning. Therefore, it could mediate the differences between fast and slow myocytes' resistance to fatigue. The present study elucidates a specific protein expression profile concerning the TrkB signaling that correlates with higher resistance to fatigue and better neuroprotective capacity through time. The results unveil that Extra-ocular muscles (EOM) express lower levels of NT-4 that extend TrkB signaling, differential PKC expression, and a higher abundance of phosphorylated synaptic proteins that correlate with continuous neurotransmission requirements. Furthermore, common molecular features between EOM and slow soleus muscles including higher neurotrophic consumption and classic and novel PKC isoforms balance correlate with better preservation of these two muscles in ALS. Altogether, higher resistance of Soleus and EOM to fatigue and ALS seems to be associated with specific protein levels concerning the TrkB neurotrophic signaling.
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6
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Liu ZT, Ma YT, Pan ST, Xie K, Shen W, Lin SY, Gao JY, Li WY, Li GY, Wang QW, Li LP. Effects of involuntary treadmill running in combination with swimming on adult neurogenesis in an Alzheimer's mouse model. Neurochem Int 2022; 155:105309. [PMID: 35276288 DOI: 10.1016/j.neuint.2022.105309] [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: 10/28/2021] [Revised: 01/24/2022] [Accepted: 02/15/2022] [Indexed: 10/18/2022]
Abstract
Physical exercise plays a role on the prevention and treatment of Alzheimer's disease (AD), but the exercise mode and the mechanism for these positive effects is still ambiguous. Here, we investigated the effect of an aerobic interval exercise, running in combination with swimming, on behavioral dysfunction and associated adult neurogenesis in a mouse model of AD. We demonstrate that 4 weeks of the exercise could ameliorate Aβ42 oligomer-induced cognitive impairment in mice utilizing Morris water maze tests. Additionally, the exercised Aβ42 oligomer-induced mice exhibited a significant reduction of anxiety- and depression-like behaviors compared to the sedentary Aβ42 oligomer-induced mice utilizing an Elevated zero maze and a Tail suspension test. Moreover, by utilizing 5'-bromodeoxyuridine (BrdU) as an exogenous cell tracer, we found that the exercised Aβ42 oligomer-induced mice displayed a significant increase in newborn cells (BrdU+ cells), which differentiated into a majority of neurons (BrdU+ DCX+ cells or BrdU+NeuN+ cells) and a few of astrocytes (BrdU+GFAP+ cells). Likewise, the exercised Aβ42 oligomer-induced mice also displayed the higher levels of NeuN, PSD95, synaptophysin, Bcl-2 and lower level of GFAP protein. Furthermore, alteration of serum metabolites in transgenic AD mice between the exercised and sedentary group were significantly associated with lipid metabolism, amino acid metabolism, and neurotransmitters. These findings suggest that combined aerobic interval exercise-mediated metabolites and proteins contributed to improving adult neurogenesis and behavioral performance after AD pathology, which might provide a promising therapeutic strategy for AD.
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Affiliation(s)
- Zhi-Tao Liu
- Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China; Rehabilitative Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, 315211, PR China; Faculty of Sports Science, Ningbo University, Ningbo, 315211, China
| | - Yu-Tao Ma
- Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China
| | - Shao-Tao Pan
- Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China
| | - Kai Xie
- Rehabilitative Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, 315211, PR China
| | - Wei Shen
- Rehabilitative Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, 315211, PR China
| | - Su-Yang Lin
- Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China
| | - Jun-Yan Gao
- Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China
| | - Wan-Yi Li
- Faculty of Sports Science, Ningbo University, Ningbo, 315211, China
| | - Guang-Yu Li
- Faculty of Sports Science, Ningbo University, Ningbo, 315211, China
| | - Qin-Wen Wang
- Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China.
| | - Li-Ping Li
- Department of Physiology and Pharmacology, Ningbo University School of Medicine, Ningbo, Zhejiang, 315211, PR China; Rehabilitative Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, 315211, PR China; Key Laboratory of Addiction Research of Zhejiang Province, Ningbo, Zhejiang, 315010, PR China.
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James G, Millecamps M, Stone LS, Hodges PW. Multifidus Muscle Fiber Type Distribution is Changed in Mouse Models of Chronic Intervertebral Disc Degeneration, but is not Attenuated by Whole Body Physical Activity. Spine (Phila Pa 1976) 2021; 46:1612-1620. [PMID: 33973565 DOI: 10.1097/brs.0000000000004105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Case-controlled animal study. OBJECTIVE The aim of this study was to investigate whether multifidus muscle fiber type distribution changes in models of interverbal disc (IVD) degeneration and whether this is resolved by physical activity (PA). SUMMARY OF BACKGROUND DATA The loss of slow type I muscle fibers in the multifidus muscle in people with low back pain is contentious. Data from animal models of IVD degeneration suggest some discrepancies in human studies might be explained by the dependence of slow muscle fiber changes and their underlying mechanisms, on the time since injury and progression of IVD degeneration. It is not yet resolved what changes are apparent once the chronic phase is established. It is also not known whether muscle fiber changes can be resolved by whole body PA. This study aimed to examine slow fiber distribution in the multifidus muscle in models of IVD injury or spontaneous degeneration in animals with or without exposure to PA. METHODS Two models of IVD degeneration were used. The first model used a genetically modified mouse (SPARC-null) that spontaneously develops IVD degeneration. The second model involved a surgically induced IVD lesion to induce degeneration. Mice in each study were allocated to housing with or without a running wheel for PA. At 12 months of age, the multifidus muscle was harvested. Slow muscle fiber distribution and the mRNA expression of genes associated with muscle fiber type transformation were examined. RESULTS The proportion and cross-sectional area of slow muscle fibers were reduced in both models of IVD degeneration compared to controls, without evidence of ongoing fiber transformation. Whole-body PA did not attenuate these alterations. CONCLUSION Results confirmed slow muscle fiber loss in the multifidus in the chronic phase of IVD degeneration induced spontaneously and by injury. Whole-body PA did not attenuate changes to muscle fiber distribution. More specific approaches to muscle activation might be required to achieve more complete reversal of muscle fiber changes, with potential implications for therapy in humans.Level of Evidence: N/A.
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Affiliation(s)
- Gregory James
- The University of Queensland, NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, Brisbane, Australia
| | - Magali Millecamps
- Alan Edwards Centre for Research on Pain, Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - Laura S Stone
- Alan Edwards Centre for Research on Pain, Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
- Department of Anesthesiology, Faculty of Medicine, University of Minnesota, Minneapolis, MN
| | - Paul W Hodges
- The University of Queensland, NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, Brisbane, Australia
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Swim Training Ameliorates Hyperlocomotion of ALS Mice and Increases Glutathione Peroxidase Activity in the Spinal Cord. Int J Mol Sci 2021; 22:ijms222111614. [PMID: 34769048 PMCID: PMC8583724 DOI: 10.3390/ijms222111614] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/18/2022] Open
Abstract
(1) Background: Amyotrophic lateral sclerosis (ALS) is an incurable, neurodegenerative disease. In some cases, ALS causes behavioral disturbances and cognitive dysfunction. Swimming has revealed a neuroprotective influence on the motor neurons in ALS. (2) Methods: In the present study, a SOD1-G93A mice model of ALS were used, with wild-type B6SJL mice as controls. ALS mice were analyzed before ALS onset (10th week of life), at ALS 1 onset (first symptoms of the disease, ALS 1 onset, and ALS 1 onset SWIM), and at terminal ALS (last stage of the disease, ALS TER, and ALS TER SWIM), and compared with wild-type mice. Swim training was applied 5 times per week for 30 min. All mice underwent behavioral tests. The spinal cord was analyzed for the enzyme activities and oxidative stress markers. (3) Results: Pre-symptomatic ALS mice showed increased locomotor activity versus control mice; the swim training reduced these symptoms. The metabolic changes in the spinal cord were present at the pre-symptomatic stage of the disease with a shift towards glycolytic processes at the terminal stage of ALS. Swim training caused an adaptation, resulting in higher glutathione peroxidase (GPx) and protection against oxidative stress. (4) Conclusion: Therapeutic aquatic activity might slow down the progression of ALS.
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Skeletal Muscle Metabolism: Origin or Prognostic Factor for Amyotrophic Lateral Sclerosis (ALS) Development? Cells 2021; 10:cells10061449. [PMID: 34207859 PMCID: PMC8226541 DOI: 10.3390/cells10061449] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/03/2021] [Accepted: 06/07/2021] [Indexed: 12/26/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by progressive and selective loss of motor neurons, amyotrophy and skeletal muscle paralysis usually leading to death due to respiratory failure. While generally considered an intrinsic motor neuron disease, data obtained in recent years, including our own, suggest that motor neuron protection is not sufficient to counter the disease. The dismantling of the neuromuscular junction is closely linked to chronic energy deficit found throughout the body. Metabolic (hypermetabolism and dyslipidemia) and mitochondrial alterations described in patients and murine models of ALS are associated with the development and progression of disease pathology and they appear long before motor neurons die. It is clear that these metabolic changes participate in the pathology of the disease. In this review, we summarize these changes seen throughout the course of the disease, and the subsequent impact of glucose–fatty acid oxidation imbalance on disease progression. We also highlight studies that show that correcting this loss of metabolic flexibility should now be considered a major goal for the treatment of ALS.
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10
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Just-Borràs L, Cilleros-Mañé V, Hurtado E, Biondi O, Charbonnier F, Tomàs M, Garcia N, Tomàs J, Lanuza MA. Running and Swimming Differently Adapt the BDNF/TrkB Pathway to a Slow Molecular Pattern at the NMJ. Int J Mol Sci 2021; 22:4577. [PMID: 33925507 PMCID: PMC8123836 DOI: 10.3390/ijms22094577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/29/2022] Open
Abstract
Physical exercise improves motor control and related cognitive abilities and reinforces neuroprotective mechanisms in the nervous system. As peripheral nerves interact with skeletal muscles at the neuromuscular junction, modifications of this bidirectional communication by physical activity are positive to preserve this synapse as it increases quantal content and resistance to fatigue, acetylcholine receptors expansion, and myocytes' fast-to-slow functional transition. Here, we provide the intermediate step between physical activity and functional and morphological changes by analyzing the molecular adaptations in the skeletal muscle of the full BDNF/TrkB downstream signaling pathway, directly involved in acetylcholine release and synapse maintenance. After 45 days of training at different intensities, the BDNF/TrkB molecular phenotype of trained muscles from male B6SJLF1/J mice undergo a fast-to-slow transition without affecting motor neuron size. We provide further knowledge to understand how exercise induces muscle molecular adaptations towards a slower phenotype, resistant to prolonged trains of stimulation or activity that can be useful as therapeutic tools.
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Affiliation(s)
- Laia Just-Borràs
- Unitat d’Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.J.-B.); (V.C.-M.); (E.H.); (M.T.); (N.G.)
| | - Víctor Cilleros-Mañé
- Unitat d’Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.J.-B.); (V.C.-M.); (E.H.); (M.T.); (N.G.)
| | - Erica Hurtado
- Unitat d’Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.J.-B.); (V.C.-M.); (E.H.); (M.T.); (N.G.)
| | - Olivier Biondi
- INSERM UMRS 1124, Université de Paris, CEDEX 06, F-75270 Paris, France; (O.B.); (F.C.)
| | - Frédéric Charbonnier
- INSERM UMRS 1124, Université de Paris, CEDEX 06, F-75270 Paris, France; (O.B.); (F.C.)
| | - Marta Tomàs
- Unitat d’Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.J.-B.); (V.C.-M.); (E.H.); (M.T.); (N.G.)
| | - Neus Garcia
- Unitat d’Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.J.-B.); (V.C.-M.); (E.H.); (M.T.); (N.G.)
| | - Josep Tomàs
- Unitat d’Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.J.-B.); (V.C.-M.); (E.H.); (M.T.); (N.G.)
| | - Maria A. Lanuza
- Unitat d’Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.J.-B.); (V.C.-M.); (E.H.); (M.T.); (N.G.)
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11
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Just-Borràs L, Hurtado E, Cilleros-Mañé V, Biondi O, Charbonnier F, Tomàs M, Garcia N, Tomàs J, Lanuza MA. Running and swimming prevent the deregulation of the BDNF/TrkB neurotrophic signalling at the neuromuscular junction in mice with amyotrophic lateral sclerosis. Cell Mol Life Sci 2020; 77:3027-3040. [PMID: 31646358 PMCID: PMC11104938 DOI: 10.1007/s00018-019-03337-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/30/2019] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
Nerve-induced muscle contraction regulates the BDNF/TrkB neurotrophic signalling to retrogradely modulate neurotransmission and protect the neuromuscular junctions and motoneurons. In muscles with amyotrophic lateral sclerosis, this pathway is strongly misbalanced and neuromuscular junctions are destabilized, which may directly cause the motoneuron degeneration and muscular atrophy observed in this disease. Here, we sought to demonstrate (1) that physical exercise, whose recommendation has been controversial in amyotrophic lateral sclerosis, would be a good option for its therapy, because it normalizes and improves the altered neurotrophin pathway and (2) a plausible molecular mechanism underlying its positive effect. SOD1-G93A mice were trained following either running or swimming-based protocols since the beginning of the symptomatic phase (day 70 of age) until day 115. Next, the full BDNF pathway, including receptors, downstream kinases and proteins related with neurotransmission, was characterized and motoneuron survival was analysed. The results establish that amyotrophic lateral sclerosis-induced damaging molecular changes in the BDNF/TrkB pathway are reduced, prevented or even overcompensated by precisely defined exercise protocols that modulate TrkB isoforms and neurotransmission regulatory proteins and reduce motoneuron death. Altogether, the maintenance of the BDNF/TrkB signalling and the downstream pathway, particularly after the swimming protocol, adds new molecular evidence of the benefits of physical exercise to reduce the impact of amyotrophic lateral sclerosis. These results are encouraging since they reveal an improvement even starting the therapy after the onset of the disease.
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Affiliation(s)
- Laia Just-Borràs
- Unitat d'Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili. Sant Llorenç 21, 43201, Reus, Spain
| | - Erica Hurtado
- Unitat d'Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili. Sant Llorenç 21, 43201, Reus, Spain
| | - Víctor Cilleros-Mañé
- Unitat d'Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili. Sant Llorenç 21, 43201, Reus, Spain
| | - Olivier Biondi
- UMR-S1124, INSERM, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, 45 Rue des Saints-Pères, 75006, Paris, France
| | - Frédéric Charbonnier
- UMR-S1124, INSERM, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, 45 Rue des Saints-Pères, 75006, Paris, France
| | - Marta Tomàs
- Unitat d'Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili. Sant Llorenç 21, 43201, Reus, Spain
| | - Neus Garcia
- Unitat d'Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili. Sant Llorenç 21, 43201, Reus, Spain
| | - Josep Tomàs
- Unitat d'Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili. Sant Llorenç 21, 43201, Reus, Spain.
| | - Maria A Lanuza
- Unitat d'Histologia i Neurobiologia (UHNEUROB), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili. Sant Llorenç 21, 43201, Reus, Spain.
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12
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Tsitkanou S, Della Gatta P, Foletta V, Russell A. The Role of Exercise as a Non-pharmacological Therapeutic Approach for Amyotrophic Lateral Sclerosis: Beneficial or Detrimental? Front Neurol 2019; 10:783. [PMID: 31379732 PMCID: PMC6652799 DOI: 10.3389/fneur.2019.00783] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/04/2019] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disease, involves the rapid deterioration of motor neurons resulting in severe muscle atrophy and respiratory insufficiency. It is considered a "multisystemic" disease with many potential mechanisms responsible for its pathology. Currently, there is no cure for ALS. Exercise training is suggested as a potential approach to reduce ALS pathology, but its beneficial role remains controversial. This review provides an overview of the effects of exercise training in ALS-affected mice and patients. It will compare the intensity, duration, and type of exercise on the health of SOD1G93A mice, a mouse model of familial ALS, and review clinical studies involving ALS patients undergoing both endurance and resistance training. In summary, mild-to-moderate swimming-based endurance training appears the most advantageous mode of exercise in SOD1G93A mice, improving animal survival, and delaying the onset and progression of disease. Furthermore, clinical studies show that both endurance and resistance training have an advantageous impact on the quality of life of ALS patients without extending life expectancy. However, small sample sizes, non-representative control populations, heterogeneous disease stage of patients, and the presence of confounders often exist in the exercise studies conducted with ALS patients. This raises concerns about the interpretation of these findings and, therefore, these results should be considered with caution. While promising, more pre-clinical and clinical studies with improved experimental design and fewer limitations are still necessary to confirm the impact of exercise training on the health of ALS patients.
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Affiliation(s)
- Stavroula Tsitkanou
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Geelong, VIC, Australia
| | - Paul Della Gatta
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Geelong, VIC, Australia
| | - Victoria Foletta
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Geelong, VIC, Australia
| | - Aaron Russell
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Geelong, VIC, Australia
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13
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Swim Training Modulates Mouse Skeletal Muscle Energy Metabolism and Ameliorates Reduction in Grip Strength in a Mouse Model of Amyotrophic Lateral Sclerosis. Int J Mol Sci 2019; 20:ijms20020233. [PMID: 30634386 PMCID: PMC6359093 DOI: 10.3390/ijms20020233] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 12/27/2018] [Accepted: 01/01/2019] [Indexed: 12/11/2022] Open
Abstract
Metabolic reprogramming in skeletal muscles in the human and animal models of amyotrophic lateral sclerosis (ALS) may be an important factor in the diseases progression. We hypothesized that swim training, a modulator of cellular metabolism via changes in muscle bioenergetics and oxidative stress, ameliorates the reduction in muscle strength in ALS mice. In this study, we used transgenic male mice with the G93A human SOD1 mutation B6SJL-Tg (SOD1G93A) 1Gur/J and wild type B6SJL (WT) mice. Mice were subjected to a grip strength test and isolated skeletal muscle mitochondria were used to perform high-resolution respirometry. Moreover, the activities of enzymes involved in the oxidative energy metabolism and total sulfhydryl groups (as an oxidative stress marker) were evaluated in skeletal muscle. ALS reduces muscle strength (-70% between 11 and 15 weeks, p < 0.05), modulates muscle metabolism through lowering citrate synthase (CS) (-30% vs. WT, p = 0.0007) and increasing cytochrome c oxidase and malate dehydrogenase activities, and elevates oxidative stress markers in skeletal muscle. Swim training slows the reduction in muscle strength (-5% between 11 and 15 weeks) and increases CS activity (+26% vs. ALS I, p = 0.0048). Our findings indicate that swim training is a modulator of skeletal muscle energy metabolism with concomitant improvement of skeletal muscle function in ALS mice.
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14
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Merico A, Cavinato M, Gregorio C, Lacatena A, Gioia E, Piccione F, Angelini C. Effects of combined endurance and resistance training in Amyotrophic Lateral Sclerosis: A pilot, randomized, controlled study. Eur J Transl Myol 2018; 28:7278. [PMID: 29686818 PMCID: PMC5895987 DOI: 10.4081/ejtm.2018.7278] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 02/14/2018] [Accepted: 02/14/2018] [Indexed: 12/11/2022] Open
Abstract
Based on available evidence, muscle strengthening and cardiovascular exercises can help maintain function and not adversely affect the progression of disease in patients with ALS. However, this evidence is not sufficiently detailed to recommend a specific exercise prescription. The purpose of this project was to assess clinical outcomes of a combined exercise programme to increase knowledge of rehabilitation in ALS patients. 38 ALS patients were assigned randomly to two groups: one group underwent a specific exercise programme (ALS-EP) based on a moderate aerobic workout and isometric contractions, and the second group followed a standard neuromotor rehabilitation treatment. Objective evaluation consisted of cardiovascular measures, muscle strength and fatigue. Some positive effects of physical activity on ALS patients were found. Among the benefits, an overall improvement of functional independence in all patients, independently of the type of exercise conducted was seen. In addition, improvements in muscle power, oxygen consumption and fatigue were specifically observed in the ALS-EP group, all hallmarks of a training effect for the specific exercises. In conclusion, moderate intensity exercise is beneficial in ALS, helping in avoiding deconditioning and muscle atrophy resulting from progressive inactivity.
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Affiliation(s)
- Antonio Merico
- Neurorehabilitation Department, San Camillo Hospital Foundation, Institute of Care and Research, Venice. Italy
| | - Marianna Cavinato
- Neurorehabilitation Department, San Camillo Hospital Foundation, Institute of Care and Research, Venice. Italy
| | - Caterina Gregorio
- Department of Economic, mathematical and statistical sciences, University of Trieste, Italy
| | | | - Elisabetta Gioia
- Rehabilitation Department, Unità Locale Socio-Sanitaria Serenissima, Venice, Italy
| | - Francesco Piccione
- Neurorehabilitation Department, San Camillo Hospital Foundation, Institute of Care and Research, Venice. Italy
| | - Corrado Angelini
- Neurorehabilitation Department, San Camillo Hospital Foundation, Institute of Care and Research, Venice. Italy
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15
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Desseille C, Deforges S, Biondi O, Houdebine L, D'amico D, Lamazière A, Caradeuc C, Bertho G, Bruneteau G, Weill L, Bastin J, Djouadi F, Salachas F, Lopes P, Chanoine C, Massaad C, Charbonnier F. Specific Physical Exercise Improves Energetic Metabolism in the Skeletal Muscle of Amyotrophic-Lateral- Sclerosis Mice. Front Mol Neurosci 2017; 10:332. [PMID: 29104532 PMCID: PMC5655117 DOI: 10.3389/fnmol.2017.00332] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/02/2017] [Indexed: 01/22/2023] Open
Abstract
Amyotrophic Lateral Sclerosis is an adult-onset neurodegenerative disease characterized by the specific loss of motor neurons, leading to muscle paralysis and death. Although the cellular mechanisms underlying amyotrophic lateral sclerosis (ALS)-induced toxicity for motor neurons remain poorly understood, growing evidence suggest a defective energetic metabolism in skeletal muscles participating in ALS-induced motor neuron death ultimately destabilizing neuromuscular junctions. In the present study, we report that a specific exercise paradigm, based on a high intensity and amplitude swimming exercise, significantly improves glucose metabolism in ALS mice. Using physiological tests and a biophysics approach based on nuclear magnetic resonance (NMR), we unexpectedly found that SOD1(G93A) ALS mice suffered from severe glucose intolerance, which was counteracted by high intensity swimming but not moderate intensity running exercise. Furthermore, swimming exercise restored the highly ALS-sensitive tibialis muscle through an autophagy-linked mechanism involving the expression of key glucose transporters and metabolic enzymes, including GLUT4 and glyceraldehyde-3-phosphate dehydrogenase (GAPDH). Importantly, GLUT4 and GAPDH expression defects were also found in muscles from ALS patients. Moreover, we report that swimming exercise induced a triglyceride accumulation in ALS tibialis, likely resulting from an increase in the expression levels of lipid transporters and biosynthesis enzymes, notably DGAT1 and related proteins. All these data provide the first molecular basis for the differential effects of specific exercise type and intensity in ALS, calling for the use of physical exercise as an appropriate intervention to alleviate symptoms in this debilitating disease.
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Affiliation(s)
- Céline Desseille
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Séverine Deforges
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Olivier Biondi
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Léo Houdebine
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Domenico D'amico
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Antonin Lamazière
- Laboratoire de lipidomique, Faculté de Médecine Pierre et Marie Curie - Hôpital Saint-Antoine, Université Paris 6, Paris, France
| | - Cédric Caradeuc
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,UMR 8601 CNRS, Université Paris Descartes, Paris, France
| | - Gildas Bertho
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,UMR 8601 CNRS, Université Paris Descartes, Paris, France
| | - Gaëlle Bruneteau
- Laboratoire de lipidomique, Faculté de Médecine Pierre et Marie Curie - Hôpital Saint-Antoine, Université Paris 6, Paris, France.,UMR 8601 CNRS, Université Paris Descartes, Paris, France
| | - Laure Weill
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Jean Bastin
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Fatima Djouadi
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - François Salachas
- Laboratoire de lipidomique, Faculté de Médecine Pierre et Marie Curie - Hôpital Saint-Antoine, Université Paris 6, Paris, France.,Hôpital de la Salpêtrière, Département des Maladies du Système Nerveux, Equipe Neurogénétique et Physiologie, Institut du Cerveau et de la Moelle, Paris, France
| | - Philippe Lopes
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France.,UFR Sciences Fondamentales Appliquées, Département STAPS, Université d'Evry-Val-d'Essonne, Evry, France
| | - Christophe Chanoine
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Charbel Massaad
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
| | - Frédéric Charbonnier
- Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, Université Paris Descartes, Paris, France.,INSERM, UMR-S 1124, Paris, France
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16
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Lemaire KK, Thomasson R, Noirez P, Jaspers RT, van Soest AJ. Commentary: Validation of a Ramp Running Protocol for Determination of the True VO 2max in Mice. Front Physiol 2017; 8:330. [PMID: 28596737 PMCID: PMC5443204 DOI: 10.3389/fphys.2017.00330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/08/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Koen K Lemaire
- Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit AmsterdamAmsterdam, Netherlands
| | - Rémi Thomasson
- Groupe Physiologie Expérimentale, Institut de Recherche bio-Médicale et d'Epidémiologie du Sport, Université Paris DescartesParis, France
| | - Philippe Noirez
- Groupe Physiologie Expérimentale, Institut de Recherche bio-Médicale et d'Epidémiologie du Sport, Université Paris DescartesParis, France
| | - Richard T Jaspers
- Laboratory for Myology, Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit AmsterdamAmsterdam, Netherlands
| | - A J van Soest
- Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences, Vrije Universiteit AmsterdamAmsterdam, Netherlands
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17
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Houdebine L, Gallelli CA, Rastelli M, Sampathkumar NK, Grenier J. Effect of physical exercise on brain and lipid metabolism in mouse models of multiple sclerosis. Chem Phys Lipids 2017; 207:127-134. [PMID: 28606714 DOI: 10.1016/j.chemphyslip.2017.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 06/06/2017] [Accepted: 06/07/2017] [Indexed: 12/11/2022]
Abstract
Multiple sclerosis (MS) is a central nervous demyelinating disease characterized by cyclic loss and repair of myelin sheaths associated with chronic inflammation and neuronal loss. This degenerative pathology is accompanied by modified levels of oxysterols (oxidative derivatives of cholesterol, implicated in cholesterol metabolism), highlighted in the brain, blood and cerebrospinal fluid of MS patients. The pathological accumulation of such derivatives is thought to participate in the onset and progression of the disease through their implication in inflammation, oxidative stress, demyelination and neurodegeneration. In this context, physical exercise is envisaged as a complementary resource to ameliorate therapeutic strategies. Indeed, physical activity exerts beneficial effects on neuronal plasticity, decreases inflammation and oxidative stress and improves blood-brain integrity in extents that could be beneficial for brain health. The present review attempts to summarize the available data on the positive effect of physical exercise to highlight possible links between physical activity and modulation of cholesterol/oxysterol homeostasis in MS.
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Affiliation(s)
- Léo Houdebine
- Paris Descartes University, INSERM UMRS 1124, France
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18
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Chali F, Desseille C, Houdebine L, Benoit E, Rouquet T, Bariohay B, Lopes P, Branchu J, Della Gaspera B, Pariset C, Chanoine C, Charbonnier F, Biondi O. Long-term exercise-specific neuroprotection in spinal muscular atrophy-like mice. J Physiol 2016; 594:1931-52. [PMID: 26915343 DOI: 10.1113/jp271361] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 12/22/2015] [Indexed: 01/15/2023] Open
Abstract
KEY POINTS The real impact of physical exercise parameters, i.e. intensity, type of contraction and solicited energetic metabolism, on neuroprotection in the specific context of neurodegeneration remains poorly explored. In this study behavioural, biochemical and cellular analyses were conducted to compare the effects of two different long-term exercise protocols, high intensity swimming and low intensity running, on motor units of a type 3 spinal muscular atrophy (SMA)-like mouse model. Our data revealed a preferential SMA-induced death of intermediate and fast motor neurons which was limited by the swimming protocol only, suggesting a close relationship between neuron-specific protection and their activation levels by specific exercise. The exercise-induced neuroprotection was independent of SMN protein expression and associated with specific metabolic and behavioural adaptations with notably a swimming-induced reduction of muscle fatigability. Our results provide new insight into the motor units' adaptations to different physical exercise parameters and will contribute to the design of new active physiotherapy protocols for patient care. ABSTRACT Spinal muscular atrophy (SMA) is a group of autosomal recessive neurodegenerative diseases differing in their clinical outcome, characterized by the specific loss of spinal motor neurons, caused by insufficient level of expression of the protein survival of motor neuron (SMN). No cure is at present available for SMA. While physical exercise might represent a promising approach for alleviating SMA symptoms, the lack of data dealing with the effects of different exercise types on diseased motor units still precludes the use of active physiotherapy in SMA patients. In the present study, we have evaluated the efficiency of two long-term physical exercise paradigms, based on either high intensity swimming or low intensity running, in alleviating SMA symptoms in a mild type 3 SMA-like mouse model. We found that 10 months' physical training induced significant benefits in terms of resistance to muscle damage, energetic metabolism, muscle fatigue and motor behaviour. Both exercise types significantly enhanced motor neuron survival, independently of SMN expression, leading to the maintenance of neuromuscular junctions and skeletal muscle phenotypes, particularly in the soleus, plantaris and tibialis of trained mice. Most importantly, both exercises significantly improved neuromuscular excitability properties. Further, all these training-induced benefits were quantitatively and qualitatively related to the specific characteristics of each exercise, suggesting that the related neuroprotection is strongly dependent on the specific activation of some motor neuron subpopulations. Taken together, the present data show significant long-term exercise benefits in type 3 SMA-like mice providing important clues for designing rehabilitation programmes in patients.
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Affiliation(s)
- Farah Chali
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Céline Desseille
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Léo Houdebine
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Evelyne Benoit
- Institut des Neurosciences Paris-Saclay UMR 9197, CNRS, Bât 32-33, and Service d'Ingénierie Moléculaire des Protéines (DSV/iBiTec-S/SIMOPRO), CEA de Saclay, Bât. 152, 91190, Gif-sur-Yvette, France
| | - Thaïs Rouquet
- BIOMEOSTASIS, Nutritional behavior and metabolic disorders, FST St Jérôme, Service B52, Avenue Escadrille Normandie-Niemen, 13397, Marseille, France
| | - Bruno Bariohay
- BIOMEOSTASIS, Nutritional behavior and metabolic disorders, FST St Jérôme, Service B52, Avenue Escadrille Normandie-Niemen, 13397, Marseille, France
| | - Philippe Lopes
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France.,Université d'Evry-val-d'Essonne, Bd F. Mitterrand, 91000, Evry, France
| | - Julien Branchu
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Bruno Della Gaspera
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Claude Pariset
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Christophe Chanoine
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Frédéric Charbonnier
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
| | - Olivier Biondi
- Université Paris Descartes and INSERM UMRS 1124, 45 rue des Saints-Pères, F-75270, Paris Cedex 06, France
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Aerobic exercise training prevents heart failure-induced skeletal muscle atrophy by anti-catabolic, but not anabolic actions. PLoS One 2014; 9:e110020. [PMID: 25330387 PMCID: PMC4201522 DOI: 10.1371/journal.pone.0110020] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 09/14/2014] [Indexed: 01/05/2023] Open
Abstract
Background Heart failure (HF) is associated with cachexia and consequent exercise intolerance. Given the beneficial effects of aerobic exercise training (ET) in HF, the aim of this study was to determine if the ET performed during the transition from cardiac dysfunction to HF would alter the expression of anabolic and catabolic factors, thus preventing skeletal muscle wasting. Methods and Results We employed ascending aortic stenosis (AS) inducing HF in Wistar male rats. Controls were sham-operated animals. At 18 weeks after surgery, rats with cardiac dysfunction were randomized to 10 weeks of aerobic ET (AS-ET) or to an untrained group (AS-UN). At 28 weeks, the AS-UN group presented HF signs in conjunction with high TNF-α serum levels; soleus and plantaris muscle atrophy; and an increase in the expression of TNF-α, NFκB (p65), MAFbx, MuRF1, FoxO1, and myostatin catabolic factors. However, in the AS-ET group, the deterioration of cardiac function was prevented, as well as muscle wasting, and the atrophy promoters were decreased. Interestingly, changes in anabolic factor expression (IGF-I, AKT, and mTOR) were not observed. Nevertheless, in the plantaris muscle, ET maintained high PGC1α levels. Conclusions Thus, the ET capability to attenuate cardiac function during the transition from cardiac dysfunction to HF was accompanied by a prevention of skeletal muscle atrophy that did not occur via an increase in anabolic factors, but through anti-catabolic activity, presumably caused by PGC1α action. These findings indicate the therapeutic potential of aerobic ET to block HF-induced muscle atrophy by counteracting the increased catabolic state.
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Dual effects of exercise in dysferlinopathy. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 182:2298-309. [PMID: 23624156 DOI: 10.1016/j.ajpath.2013.02.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 02/09/2013] [Accepted: 02/12/2013] [Indexed: 02/05/2023]
Abstract
Dysferlinopathy refers to a group of autosomal recessive muscular dystrophies due to mutations in the dysferlin gene causing deficiency of a membrane-bound protein crucially involved in plasma membrane repair. The condition is characterized by marked clinical heterogeneity, the different phenotypes/modes of presentation being unrelated to the genotype. For unknown reasons, patients are often remarkably active before the onset of symptoms. Dysferlin deficiency-related persistence of mechanically induced sarcolemma disruptions causes myofiber damage and necrosis. We postulate that limited myodamage may initially remain hidden with well-preserved resistance to physical strains. By subjecting dysferlin-deficient B6.A/J-Dysf(prmd) mice to long-term swimming exercise, we observed that concentric/isometric strain improved muscle strength and alleviated muscular dystrophy by limiting the accumulation of membrane lesions. By contrast, eccentric strain induced by long-term running in a wheel worsened the dystrophic process. Myofiber damage induced by eccentric strain increased with age, reflecting the accumulation of non-necrotic membrane lesions up to a critical threshold. This phenomenon was modulated by daily spontaneous activity. Transposed to humans, our results may suggest that the past activity profile shapes the clinical phenotype of the myopathy and that patients with dysferlinopathy should likely benefit from concentric exercise-based physiotherapy.
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Rowlands DS, Thomson JS, Timmons BW, Raymond F, Fuerholz A, Mansourian R, Zwahlen MC, Métairon S, Glover E, Stellingwerff T, Kussmann M, Tarnopolsky MA. Transcriptome and translational signaling following endurance exercise in trained skeletal muscle: impact of dietary protein. Physiol Genomics 2011; 43:1004-20. [PMID: 21730029 DOI: 10.1152/physiolgenomics.00073.2011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Postexercise protein feeding regulates the skeletal muscle adaptive response to endurance exercise, but the transcriptome guiding these adaptations in well-trained human skeletal muscle is uncharacterized. In a crossover design, eight cyclists ingested beverages containing protein, carbohydrate and fat (PTN: 0.4, 1.2, 0.2 g/kg, respectively) or isocaloric carbohydrate and fat (CON: 1.6, 0.2 g/kg) at 0 and 1 h following 100 min of cycling. Biopsies of the vastus lateralis were collected at 3 and 48 h following to determine the early and late transcriptome and regulatory signaling responses via microarray and immunoblot. The top gene ontology enriched by PTN were: muscle contraction, extracellular matrix--signaling and structure, and nucleoside, nucleotide, and nucleic acid metabolism (3 and 48 h); developmental processes, immunity, and defense (3 h); glycolysis, lipid and fatty acid metabolism (48 h). The transcriptome was also enriched within axonal guidance, actin cytoskeletal, Ca2+, cAMP, MAPK, and PPAR canonical pathways linking protein nutrition to exercise-stimulated signaling regulating extracellular matrix, slow-myofibril, and metabolic gene expression. At 3 h, PTN attenuated AMPKα1Thr172 phosphorylation but increased mTORC1Ser2448, rps6Ser240/244, and 4E-BP1-γ phosphorylation, suggesting increased translation initiation, while at 48 h AMPKα1Thr172 phosphorylation and PPARG and PPARGC1A expression increased, supporting the late metabolic transcriptome, relative to CON. To conclude, protein feeding following endurance exercise affects signaling associated with cell energy status and translation initiation and the transcriptome involved in skeletal muscle development, slow-myofibril remodeling, immunity and defense, and energy metabolism. Further research should determine the time course and posttranscriptional regulation of this transcriptome and the phenotype responding to chronic postexercise protein feeding.
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Affiliation(s)
- David S Rowlands
- School of Sport and Exercise and Institute of Food Nutrition and Human Health, Massey University, Wellington, New Zealand.
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Elbasiouny SM, Schuster JE. The Effect of Training on Motoneuron Survival in Amyotrophic Lateral Sclerosis: Which Motoneuron Type is Saved? Front Physiol 2011; 2:18. [PMID: 21541255 PMCID: PMC3083714 DOI: 10.3389/fphys.2011.00018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Accepted: 04/12/2011] [Indexed: 12/04/2022] Open
Affiliation(s)
- Sherif M Elbasiouny
- Heckman Lab, Department of Physiology, Feinberg School of Medicine, Northwestern University Chicago, IL, USA
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Pandorf CE, Jiang WH, Qin AX, Bodell PW, Baldwin KM, Haddad F. Calcineurin plays a modulatory role in loading-induced regulation of type I myosin heavy chain gene expression in slow skeletal muscle. Am J Physiol Regul Integr Comp Physiol 2009; 297:R1037-48. [PMID: 19657098 DOI: 10.1152/ajpregu.00349.2009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The role of calcineurin (Cn) in skeletal muscle fiber-type expression has been a subject of great interest because of reports indicating that it controls the slow muscle phenotype. To delineate the role of Cn in phenotype remodeling, particularly its role in driving expression of the type I myosin heavy chain (MHC) gene, we used a novel strategy whereby a profound transition from fast to slow fiber type is induced and examined in the absence and presence of cyclosporin A (CsA), a Cn inhibitor. To induce the fast-to-slow transition, we first subjected rats to 7 days of hindlimb suspension (HS) + thyroid hormone [triiodothyronine (T(3))] to suppress nearly all expression of type I MHC mRNA in the soleus muscle. HS + T(3) was then withdrawn, and rats resumed normal ambulation and thyroid state, during which vehicle or CsA (30 mg x kg(-1) x day(-1)) was administered for 7 or 14 days. The findings demonstrate that, despite significant inhibition of Cn, pre-mRNA, mRNA, and protein abundance of type I MHC increased markedly during reloading relative to HS + T(3) (P < 0.05). Type I MHC expression was, however, attenuated by CsA compared with vehicle treatment. In addition, type IIa and IIx MHC pre-mRNA, mRNA, and relative protein levels were increased in Cn-treated compared with vehicle-treated rats. These findings indicate that Cn has a modulatory role in MHC transcription, rather than a role as a primary regulator of slow MHC gene expression.
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Affiliation(s)
- Clay E Pandorf
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, California 92697, USA
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Exercise ameliorates chronic kidney disease-induced defects in muscle protein metabolism and progenitor cell function. Kidney Int 2009; 76:751-9. [PMID: 19641484 DOI: 10.1038/ki.2009.260] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Chronic kidney disease (CKD) impairs muscle protein metabolism leading to muscle atrophy, and exercise can counteract this muscle wasting. Here we evaluated how resistance exercise (muscle overload) and endurance training (treadmill running) affect CKD-induced abnormalities in muscle protein metabolism and progenitor cell function using mouse plantaris muscle. Both exercise models blunted the increase in disease-induced muscle proteolysis and improved phosphorylation of Akt and the forkhead transcription factor FoxO1. Muscle overloading, but not treadmill running, corrected protein synthesis and levels of mediators of protein synthesis such as phosphorylated mTOR and p70S6K in the muscles of mice with CKD. In these mice, muscle overload, but not treadmill, running, increased muscle progenitor cell number and activity as measured by the amounts of MyoD, myogenin, and eMyHC mRNAs. Muscle overload not only increased plantaris weight and reduced muscle proteolysis but also corrected intracellular signals regulating protein and progenitor cell function in mice with CKD. Treadmill running corrects muscle proteolysis but not protein synthesis or progenitor cell function. Our results provide a basis for evaluating different types of exercise on muscle atrophy in patients with chronic kidney disease.
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Deforges S, Branchu J, Biondi O, Grondard C, Pariset C, Lécolle S, Lopes P, Vidal PP, Chanoine C, Charbonnier F. Motoneuron survival is promoted by specific exercise in a mouse model of amyotrophic lateral sclerosis. J Physiol 2009; 587:3561-72. [PMID: 19491245 DOI: 10.1113/jphysiol.2009.169748] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Several studies using transgenic mouse models of familial amyotrophic lateral sclerosis (ALS) have reported a life span increase in exercised animals, as long as animals are submitted to a moderate-intensity training protocol. However, the neuroprotective potential of exercise is still questionable. To gain further insight into the cellular basis of the exercise-induced effects in neuroprotection, we compared the efficiency of a swimming-based training, a high-frequency and -amplitude exercise that preferentially recruits the fast motor units, and of a moderate running-based training, that preferentially triggers the slow motor units, in an ALS mouse model. Surprisingly, we found that the swimming-induced benefits sustained the motor function and increased the ALS mouse life span by about 25 days. The magnitude of this beneficial effect is one of the highest among those induced by any therapeutic strategy in this disease. We have shown that, unlike running, swimming significantly delays spinal motoneuron death and, more specifically, the motoneurons of large soma area. Analysis of the muscular phenotype revealed a swimming-induced relative maintenance of the fast phenotype in fast-twitch muscles. Furthermore, the swimming programme preserved astrocyte and oligodendrocyte populations in ALS spinal cord. As a whole, these data are highly suggestive of a causal relationship not only linking motoneuron activation and protection, but also motoneuron protection and the maintenance of the motoneuron surrounding environment. Basically, exercise-induced neuroprotective mechanisms provide an example of the molecular adaptation of activated motoneurons.
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Affiliation(s)
- Séverine Deforges
- University Paris Descartes, UMR 7060 CNRS, 45 rue des Saints-Pères, Paris 75006, France
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Lamas L, Aoki MS, Ugrinowitsch C, Campos GER, Regazzini M, Moriscot AS, Tricoli V. Expression of genes related to muscle plasticity after strength and power training regimens. Scand J Med Sci Sports 2009; 20:216-25. [DOI: 10.1111/j.1600-0838.2009.00905.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Moore LM, Fisher AG, Coulson JM, Salmons S, Jarvis JC. Real-time polymerase chain reaction to follow the response of muscle to training. Artif Organs 2008; 32:630-3. [PMID: 18782134 DOI: 10.1111/j.1525-1594.2008.00613.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The adaptive response of muscle to changes in activity or loading can take many weeks. Changes in the levels of RNA within a muscle fiber can give an early indication of the nature of the response of that fiber to changes in activity or loading. We have designed a new primer set for quantitative polymerase chain reaction (PCR) that will allow us to follow these early transcriptional changes in rat muscle, and have shown that analysis can be performed by standard techniques on as little as 5 mg of muscle, an amount that can be obtained by needle biopsy.
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Affiliation(s)
- Lauren M Moore
- Department of Human Anatomy and Cell Biology, School of Biomedical Sciences, the University of Liverpool, Liverpool, UK
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