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Moutachi D, Hyzewicz J, Roy P, Lemaitre M, Bachasson D, Amthor H, Ritvos O, Li Z, Furling D, Agbulut O, Ferry A. Treadmill running and mechanical overloading improved the strength of the plantaris muscle in the dystrophin-desmin double knockout (DKO) mouse. J Physiol 2024; 602:3641-3660. [PMID: 38980963 DOI: 10.1113/jp286425] [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: 02/14/2024] [Accepted: 06/24/2024] [Indexed: 07/11/2024] Open
Abstract
Limited knowledge exists regarding the chronic effect of muscular exercise on muscle function in a murine model of severe Duchenne muscular dystrophy (DMD). Here we determined the effects of 1 month of voluntary wheel running (WR), 1 month of enforced treadmill running (TR) and 1 month of mechanical overloading resulting from the removal of the synergic muscles (OVL) in mice lacking both dystrophin and desmin (DKO). Additionally, we examined the effect of activin receptor administration (AR). DKO mice, displaying severe muscle weakness, atrophy and greater susceptibility to contraction-induced functional loss, were exercised or treated with AR at 1 month of age and in situ force production of lower leg muscle was measured at the age of 2 months. We found that TR and OVL increased absolute maximal force and the rate of force development of the plantaris muscle in DKO mice. In contrast, those of the tibialis anterior (TA) muscle remained unaffected by TR and WR. Furthermore, the effects of TR and OVL on plantaris muscle function in DKO mice closely resembled those in mdx mice, a less severe murine DMD model. AR also improved absolute maximal force and the rate of force development of the TA muscle in DKO mice. In conclusion, exercise training improved plantaris muscle weakness in severely affected dystrophic mice. Consequently, these preclinical results may contribute to fostering further investigations aimed at assessing the potential benefits of exercise for DMD patients, particularly resistance training involving a low number of intense muscle contractions. KEY POINTS: Very little is known about the effects of exercise training in a murine model of severe Duchenne muscular dystrophy (DMD). One reason is that it is feared that chronic muscular exercise, particularly that involving intense muscle contractions, could exacerbate the disease. In DKO mice lacking both dystrophin and desmin, characterized by severe lower leg muscle weakness, atrophy and fragility in comparison to the less severe DMD mdx model, we found that enforced treadmill running improved absolute maximal force of the plantaris muscle, while that of tibialis anterior muscle remained unaffected by both enforced treadmill and voluntary wheel running. Furthermore, mechanical overloading, a non-physiological model of chronic resistance exercise, reversed plantaris muscle weakness. Consequently, our findings may have the potential to alleviate concerns and pave the way for exploring the prescription of endurance and resistance training as a viable therapeutic approach for the treatment of dystrophic patients. Additionally, such interventions may serve in mitigating the pathophysiological mechanisms induced by physical inactivity.
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Affiliation(s)
- Dylan Moutachi
- Sorbonne Université, INSERM U974, Centre de Recherche en Myologie, Paris, France
| | - Janek Hyzewicz
- Integrare Research Unit UMRS951, Université Paris-Saclay, Univ Evry, Inserm, Genethon, Evry, France
| | - Pauline Roy
- Sorbonne Université, INSERM U974, Centre de Recherche en Myologie, Paris, France
| | - Mégane Lemaitre
- Sorbonne Université, INSERM U974, Centre de Recherche en Myologie, Paris, France
| | - Damien Bachasson
- Institute of Myology, Neuromuscular Investigation Center, Neuromuscular Physiology and Evaluation Laboratory, Paris, France
| | - Helge Amthor
- Université de Versailles Saint-Quentin-en-Yvelines, INSERM U1179, Montigny-le-Bretonneux, France
| | - Olli Ritvos
- Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Zhenlin Li
- Sorbonne Université, Institut de Biologie Paris-Seine, UMR CNRS 8256, Inserm ERL U1164, Biological Adaptation and Ageing, Paris, France
| | - Denis Furling
- Sorbonne Université, INSERM U974, Centre de Recherche en Myologie, Paris, France
| | - Onnik Agbulut
- Sorbonne Université, Institut de Biologie Paris-Seine, UMR CNRS 8256, Inserm ERL U1164, Biological Adaptation and Ageing, Paris, France
| | - Arnaud Ferry
- Sorbonne Université, INSERM U974, Centre de Recherche en Myologie, Paris, France
- Université Paris Cité, Paris, France
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Hwang SY, Sung B, Kim ND. Roles of folate in skeletal muscle cell development and functions. Arch Pharm Res 2019; 42:319-325. [DOI: 10.1007/s12272-018-1100-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 12/11/2018] [Indexed: 01/24/2023]
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Yoo M, Lee SJ, Kim YK, Seo DW, Baek NI, Ryu JH, Kang JS, Bae GU. Dehydrocorydaline promotes myogenic differentiation via p38 MAPK activation. Mol Med Rep 2016; 14:3029-36. [PMID: 27573543 PMCID: PMC5042734 DOI: 10.3892/mmr.2016.5653] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 08/05/2016] [Indexed: 01/07/2023] Open
Abstract
Muscle regeneration is a coordinated process that involves proliferation and differentiation of muscle progenitor cells. Activation of MyoD is a key event in myogenic differentiation, which is regulated by p38 mitogen‑activated protein kinases (MAPK). In a screen of natural compounds for the enhancement of MyoD activity, dehydrocorydaline (DHC) from the Corydalis tuber was identified. Treatment of C2C12 myoblasts with DHC increased the expression levels of muscle‑specific proteins, including MyoD, myogenin and myosin heavy chain. In addition, C2C12 myoblasts exhibited enhanced multinucleated myotube formation without any cytotoxicity. Treatment with DHC elevated p38 MAPK activation and the interaction of MyoD with an E protein, which is likely to result in activation of MyoD and promotion of myoblast differentiation. Furthermore, defects in differentiation‑induced p38 MAPK activation and myoblast differentiation induced by depletion of the promyogenic receptor protein Cdo in C2C12 myoblasts were restored by DHC treatment. In conclusion, these results indicated that DHC stimulates p38 MAPK activation, which can enhance heterodimerization of MyoD and E proteins, thus resulting in MyoD activation and myoblast differentiation. These findings suggested that DHC may be considered a potential therapeutic compound for the improvement of muscle stem cell regenerative capacity in injured muscle.
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Affiliation(s)
- Miran Yoo
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Sang-Jin Lee
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Yong Kee Kim
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Dong-Wan Seo
- Department of Biochemistry, College of Pharmacy, Dankook University, Cheonan, Chungcheongnam 330‑714, Republic of Korea
| | - Nam-In Baek
- Department of Oriental Medicine, The Graduate School of Biotechnology, Institute of Life Sciences & Resources, Kyung Hee University, Yongin, Gyeonggi 446‑701, Republic of Korea
| | - Jae-Ha Ryu
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Biomedical Research Institute, Suwon, Gyeonggi 440‑746, Republic of Korea
| | - Gyu-Un Bae
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea
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Gorski JP, Huffman NT, Vallejo J, Brotto L, Chittur SV, Breggia A, Stern A, Huang J, Mo C, Seidah NG, Bonewald L, Brotto M. Deletion of Mbtps1 (Pcsk8, S1p, Ski-1) Gene in Osteocytes Stimulates Soleus Muscle Regeneration and Increased Size and Contractile Force with Age. J Biol Chem 2015; 291:4308-22. [PMID: 26719336 DOI: 10.1074/jbc.m115.686626] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Indexed: 12/28/2022] Open
Abstract
Conditional deletion of Mbtps1 (cKO) protease in bone osteocytes leads to an age-related increase in mass (12%) and in contractile force (30%) in adult slow twitch soleus muscles (SOL) with no effect on fast twitch extensor digitorum longus muscles. Surprisingly, bone from 10-12-month-old cKO animals was indistinguishable from controls in size, density, and morphology except for a 25% increase in stiffness. cKO SOL exhibited increased expression of Pax7, Myog, Myod1, Notch, and Myh3 and 6-fold more centralized nuclei, characteristics of postnatal regenerating muscle, but only in type I myosin heavy chain-expressing cells. Increased expression of gene pathways mediating EGF receptor signaling, circadian exercise, striated muscle contraction, and lipid and carbohydrate oxidative metabolism were also observed in cKO SOL. This muscle phenotype was not observed in 3-month-old mice. Although Mbtps1 mRNA and protein expression was reduced in cKO bone osteocytes, no differences in Mbtps1 or cre recombinase expression were observed in cKO SOL, explaining this age-related phenotype. Understanding bone-muscle cross-talk may provide a fresh and novel approach to prevention and treatment of age-related muscle loss.
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Affiliation(s)
- Jeff P Gorski
- From the Department of Oral and Craniofacial Sciences, University of Missouri-Kansas City Center of Excellence in the Study of Dental and Musculoskeletal Tissues, School of Dentistry,
| | - Nichole T Huffman
- From the Department of Oral and Craniofacial Sciences, University of Missouri-Kansas City Center of Excellence in the Study of Dental and Musculoskeletal Tissues, School of Dentistry
| | - Julian Vallejo
- Muscle Biology Research Group, School of Nursing and Health Studies, and
| | - Leticia Brotto
- Muscle Biology Research Group, School of Nursing and Health Studies, and
| | - Sridar V Chittur
- Center for Functional Genomics, University at Albany, Rensselaer, New York 12144
| | | | - Amber Stern
- School of Computing and Engineering, University of Missouri-Kansas City, Kansas City, Missouri 64108, Engineering Systems, Inc., Charlotte, North Carolina 28277, and
| | - Jian Huang
- Muscle Biology Research Group, School of Nursing and Health Studies, and
| | - Chenglin Mo
- Muscle Biology Research Group, School of Nursing and Health Studies, and
| | - Nabil G Seidah
- Institut de Recherches Cliniques Montreal, Montreal, Quebec H2W IR7, Canada
| | - Lynda Bonewald
- From the Department of Oral and Craniofacial Sciences, University of Missouri-Kansas City Center of Excellence in the Study of Dental and Musculoskeletal Tissues, School of Dentistry
| | - Marco Brotto
- Muscle Biology Research Group, School of Nursing and Health Studies, and
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Hyzewicz J, Ruegg UT, Takeda S. Comparison of Experimental Protocols of Physical Exercise for mdx Mice and Duchenne Muscular Dystrophy Patients. J Neuromuscul Dis 2015; 2:325-342. [PMID: 27858750 PMCID: PMC5240598 DOI: 10.3233/jnd-150106] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Duchenne Muscular Dystrophy (DMD) is caused by mutations in the gene coding for dystrophin and leads to muscle degeneration, wheelchair dependence and death by cardiac or respiratory failure. Physical exercise has been proposed as a palliative therapy for DMD to maintain muscle strength and prevent contractures for as long as possible. However, its practice remains controversial because the benefits of training may be counteracted by muscle overuse and damage. The effects of physical exercise have been investigated in muscles of dystrophin-deficient mdx mice and in patients with DMD. However, a lack of uniformity among protocols limits comparability between studies and translatability of results from animals to humans. In the present review, we summarize and discuss published protocols used to investigate the effects of physical exercise on mdx mice and DMD patients, with the objectives of improving comparability between studies and identifying future research directions.
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Affiliation(s)
- Janek Hyzewicz
- Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | | | - Shin'ichi Takeda
- Department of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
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Aurora A, Garg K, Corona BT, Walters TJ. Physical rehabilitation improves muscle function following volumetric muscle loss injury. BMC Sports Sci Med Rehabil 2014; 6:41. [PMID: 25598983 PMCID: PMC4297368 DOI: 10.1186/2052-1847-6-41] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 12/04/2014] [Indexed: 11/10/2022]
Abstract
Background Given the clinical practice of prescribing physical rehabilitation for the treatment of VML injuries, the present study examined the functional and histomorphological adaptations in the volumetric muscle loss (VML) injured muscle to physical rehabilitation. Methods Tibialis anterior muscle VML injury was created in Lewis rats (n = 32), and were randomly assigned to either sedentary (SED) or physical rehabilitation (RUN) group. After 1 week, RUN rats were given unlimited access to voluntary running wheels either 1 or 7 weeks (2 or 8 weeks post-injury). At 2 weeks post-injury, TA muscles were harvested for molecular analyses. At 8 weeks post-injury, the rats underwent in vivo function testing. The explanted tissue was analyzed using histological and immunofluorescence procedures. Results The primary findings of the study are that physical rehabilitation in the form of voluntary wheel running promotes ~ 17% improvement in maximal isometric torque, and a ~ 13% increase in weight of the injured muscle, but it did so without significant morphological adaptations (e.g., no hypertrophy and hyperplasia). Wheel running up-regulated metabolic genes (SIRT-1, PGC-1α) only in the uninjured muscles, and a greater deposition of fibrous tissue in the defect area of the injured muscle preceded by an up-regulation of pro-fibrotic genes (Collagen I, TGF-β1). Therefore, it is plausible that the wheel running related functional improvements were due to improved force transmission and not muscle regeneration. Conclusions This is the first study to demonstrate improvement in functional performance of non-repaired VML injured muscle with physical rehabilitation in the form of voluntary wheel running. This study provides information for the first time on the basic changes in the VML injured muscle with physical rehabilitation, which may aid in the development of appropriate physical rehabilitation regimen(s).
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Affiliation(s)
- Amit Aurora
- Department of the Army, Extremity Trauma and Regenerative Medicine, Institute of Surgical Research, 3650 Chambers Pass, JBSA Ft Sam, Houston, TX 78234-7767 USA
| | - Koyal Garg
- Department of the Army, Extremity Trauma and Regenerative Medicine, Institute of Surgical Research, 3650 Chambers Pass, JBSA Ft Sam, Houston, TX 78234-7767 USA
| | - Benjamin T Corona
- Department of the Army, Extremity Trauma and Regenerative Medicine, Institute of Surgical Research, 3650 Chambers Pass, JBSA Ft Sam, Houston, TX 78234-7767 USA
| | - Thomas J Walters
- Department of the Army, Extremity Trauma and Regenerative Medicine, Institute of Surgical Research, 3650 Chambers Pass, JBSA Ft Sam, Houston, TX 78234-7767 USA
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Hollinger K, Yang CX, Montz RE, Nonneman D, Ross JW, Selsby JT. Dystrophin insufficiency causes selective muscle histopathology and loss of dystrophin-glycoprotein complex assembly in pig skeletal muscle. FASEB J 2013; 28:1600-9. [PMID: 24347611 DOI: 10.1096/fj.13-241141] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The purpose of this investigation was to determine the extent to which dystrophin insufficiency caused histomorphological changes in a novel pig model of Becker muscular dystrophy. In our procedures, we used a combination of biochemical approaches, including quantitative PCR and Western blots, along with a histological analysis using standard and immunohistological measures. We found that 8-wk-old male affected pigs had a 70% reduction in dystrophin protein abundance in the diaphragm, psoas major, and longissimus lumborum and a 5-fold increase in serum creatine kinase activity compared with healthy male littermates. Dystrophin insufficiency in the diaphragm and the longissimus resulted in muscle histopathology with disorganized fibrosis that often colocalized with fatty infiltration but not the psoas. Affected animals also had an 80-85% reduction in α-sarcoglycan localization in these muscles, indicating compromised assembly of the dystrophin glycoprotein complex. Controls used in this study were 4 healthy male littermates, as they are most closely related to the affected animals. We concluded that pigs with insufficient dystrophin protein expression have a phenotype consistent with human dystrophinopathy patients. Given that and their similarity in body size and physiology to humans, we further conclude that this pig line is an appropriate translational model for dystrophinopathies.
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Affiliation(s)
- Katrin Hollinger
- 1Iowa State University, Department of Animal Science, 2356 Kildee Hall, Ames, IA 50011, USA.
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Selsby JT, Acosta P, Sleeper MM, Barton ER, Sweeney HL. Long-term wheel running compromises diaphragm function but improves cardiac and plantarflexor function in the mdx mouse. J Appl Physiol (1985) 2013; 115:660-6. [PMID: 23823150 DOI: 10.1152/japplphysiol.00252.2013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Dystrophin-deficient muscles suffer from free radical injury, mitochondrial dysfunction, apoptosis, and inflammation, among other pathologies that contribute to muscle fiber injury and loss, leading to wheelchair confinement and death in the patient. For some time, it has been appreciated that endurance training has the potential to counter many of these contributing factors. Correspondingly, numerous investigations have shown improvements in limb muscle function following endurance training in mdx mice. However, the effect of long-term volitional wheel running on diaphragm and cardiac function is largely unknown. Our purpose was to determine the extent to which long-term endurance exercise affected dystrophic limb, diaphragm, and cardiac function. Diaphragm specific tension was reduced by 60% (P < 0.05) in mice that performed 1 yr of volitional wheel running compared with sedentary mdx mice. Dorsiflexor mass (extensor digitorum longus and tibialis anterior) and function (extensor digitorum longus) were not altered by endurance training. In mice that performed 1 yr of volitional wheel running, plantarflexor mass (soleus and gastrocnemius) was increased and soleus tetanic force was increased 36%, while specific tension was similar in wheel-running and sedentary groups. Cardiac mass was increased 15%, left ventricle chamber size was increased 20% (diastole) and 18% (systole), and stroke volume was increased twofold in wheel-running compared with sedentary mdx mice. These data suggest that the dystrophic heart may undergo positive exercise-induced remodeling and that limb muscle function is largely unaffected. Most importantly, however, as the diaphragm most closely recapitulates the human disease, these data raise the possibility of exercise-mediated injury in dystrophic skeletal muscle.
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Affiliation(s)
- Joshua T Selsby
- Department of Animal Science, College of Agriculture and Life Sciences, Iowa State University, Ames, Iowa
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Kackstein K, Teren A, Matsumoto Y, Mangner N, Möbius-Winkler S, Linke A, Schuler G, Punkt K, Adams V. Impact of angiotensin II on skeletal muscle metabolism and function in mice: contribution of IGF-1, Sirtuin-1 and PGC-1α. Acta Histochem 2013; 115:363-70. [PMID: 23092805 DOI: 10.1016/j.acthis.2012.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Revised: 09/11/2012] [Accepted: 09/12/2012] [Indexed: 01/03/2023]
Abstract
Activation of the renin-angiotensin-aldosterone system and increased levels of angiotensin II (Ang-II) occurs in numerous cardiovascular diseases such as chronic heart failure (CHF). Another hallmark in CHF is a reduced exercise tolerance with impaired skeletal muscle function. The aim of this study was to investigate in an animal model the impact of Ang-II on skeletal muscle function and concomitant molecular alterations. Mice were infused with Ang-II for 4 weeks. Subsequently, skeletal muscle function of the soleus muscle was assessed. Expression of selected proteins was quantified by qRT-PCR and Western blot. Infusion of Ang-II resulted in a 33% reduction of contractile force, despite a lack of changes in muscle weight. At the molecular level an increased expression of NAD(P)H oxidase and a reduced expression of Sirt1, PGC-1α and IGF-1 were noticed. No change was evident for the ubiquitin E3-ligases MuRF1 and MafBx and α-sarcomeric actin expression. Cytophotometrical analysis of the soleus muscle revealed a metabolic shift toward a glycolytic profile. This study provides direct evidence of Ang-II-mediated, metabolic deterioration of skeletal muscle function despite preserved muscle mass. One may speculate that the Ang-II-mediated loss of muscle force is due to an activation of NAD(P)H oxidase expression and a subsequent ROS-induced down regulation of IGF-1, PGC-1α and Sirt1.
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