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Pabla P, Jones E, Piasecki M, Phillips B. Skeletal muscle dysfunction with advancing age. Clin Sci (Lond) 2024; 138:863-882. [PMID: 38994723 PMCID: PMC11250095 DOI: 10.1042/cs20231197] [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: 03/14/2024] [Revised: 06/15/2024] [Accepted: 06/20/2024] [Indexed: 07/13/2024]
Abstract
As a result of advances in medical treatments and associated policy over the last century, life expectancy has risen substantially and continues to increase globally. However, the disconnect between lifespan and 'health span' (the length of time spent in a healthy, disease-free state) has also increased, with skeletal muscle being a substantial contributor to this. Biological ageing is accompanied by declines in both skeletal muscle mass and function, termed sarcopenia. The mechanisms underpinning sarcopenia are multifactorial and are known to include marked alterations in muscle protein turnover and adaptations to the neural input to muscle. However, to date, the relative contribution of each factor remains largely unexplored. Specifically, muscle protein synthetic responses to key anabolic stimuli are blunted with advancing age, whilst alterations to neural components, spanning from the motor cortex and motoneuron excitability to the neuromuscular junction, may explain the greater magnitude of function losses when compared with mass. The consequences of these losses can be devastating for individuals, their support networks, and healthcare services; with clear detrimental impacts on both clinical (e.g., mortality, frailty, and post-treatment complications) and societal (e.g., independence maintenance) outcomes. Whether declines in muscle quantity and quality are an inevitable component of ageing remains to be completely understood. Nevertheless, strategies to mitigate these declines are of vital importance to improve the health span of older adults. This review aims to provide an overview of the declines in skeletal muscle mass and function with advancing age, describes the wide-ranging implications of these declines, and finally suggests strategies to mitigate them, including the merits of emerging pharmaceutical agents.
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Affiliation(s)
- Pardeep Pabla
- Centre of Metabolism, Ageing and Physiology (COMAP), School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, DE22 3DT, U.K
| | - Eleanor J. Jones
- Centre of Metabolism, Ageing and Physiology (COMAP), School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, DE22 3DT, U.K
| | - Mathew Piasecki
- Centre of Metabolism, Ageing and Physiology (COMAP), School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, DE22 3DT, U.K
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research (CMAR), U.K
- NIHR Nottingham Biomedical Research Centre (BRC), U.K
| | - Bethan E. Phillips
- Centre of Metabolism, Ageing and Physiology (COMAP), School of Medicine, University of Nottingham, Royal Derby Hospital, Derby, DE22 3DT, U.K
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research (CMAR), U.K
- NIHR Nottingham Biomedical Research Centre (BRC), U.K
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2
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Lee SB, Woo TW, Baek DC, Son CG. A standardized herbal combination of Astragalus membranaceus and Paeonia japonica promotes skeletal muscle hypertrophy in a treadmill exercise mouse model. Front Nutr 2024; 11:1362550. [PMID: 38966418 PMCID: PMC11223055 DOI: 10.3389/fnut.2024.1362550] [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: 12/28/2023] [Accepted: 05/29/2024] [Indexed: 07/06/2024] Open
Abstract
Background Maintaining a normal range of muscle mass and function is crucial not only for sustaining a healthy life but also for preventing various disorders. Numerous nutritional or natural resources are being explored for their potential muscle hypertrophic properties. Aim We aimed to evaluate the muscle hypertrophic effects of APX, a 1:1 mixture of Astragalus membranaceus and Paeonia japonica. In addition to the myotube differentiation cell assay, we utilized a weighted exercise-based animal model and evaluated changes in muscle hypertrophy using dual-energy X-ray absorptiometry (DXA) and histological analysis. Results The 8-week treadmill exercise led to notable decreases in body weight and fat mass but an increase in muscle mass compared to the control group. Administration of APX significantly accelerated muscle mass gain (p < 0.05) without altering body weight or fat mass compared to the exercise-only group. This muscle hypertrophic effect of APX was consistent with the histologic size of muscle fibers in the gastrocnemius (p > 0.05) and rectus femoris (p < 0.05), as well as the regulation of myogenic transcription factors (MyoD and myogenin), respectively. Furthermore, APX demonstrated a similar action to insulin-like growth factor 1, influencing the proliferation of C2C12 myoblast cells (p < 0.01) and their differentiation into myotubes (p < 0.05) compared to the control group. Conclusion The present study provides experimental evidence that APX has muscle hypertrophic effects, and its underlying mechanisms would involve the modulation of MyoD and myogenin.
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Affiliation(s)
| | | | | | - Chang-Gue Son
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon, Republic of Korea
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3
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Pani S, Senapati U, Pati B, Sahu B, Swalsingh G, Pani P, Rout S, Achary KG, Bal NC. Developmental dynamics of mitochondrial fission and fusion proteins in functionally divergent skeletal muscles of goat. Physiol Rep 2024; 12:e16002. [PMID: 38831632 PMCID: PMC11148127 DOI: 10.14814/phy2.16002] [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: 02/16/2024] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 06/05/2024] Open
Abstract
During skeletal muscle development, the intricate mitochondrial network formation relies on continuous fission and fusion. This process in larger mammals differs from rodents, the most used animal models. However, the expression pattern of proteins regulating mitochondrial dynamics in developing skeletal muscle remains unexplored in larger mammals. Therefore, we characterized the cellular expression and tissue-level distribution of these proteins during development taking goat as a model. We have performed histological and immunohistochemical analyses to study metabolic features in various muscles. Neonatal muscles display uniform distribution of mitochondrial activity. In contrast, adult muscles exhibit clear distinctions based on their function, whether dedicated for posture maintenance or facilitating locomotion. Mitochondrial fission proteins like DRP-1, MFF, and fusion proteins like MFN-1 and 2 are abundantly expressed in neonatal muscles. Fission proteins exhibit drastic downregulation with limited peripheral expression, whereas fusion proteins continue to express in a fiber-specific manner during adulthood. Locomotory muscles exhibit different fibers based on mitochondrial activity and peripheralization with high SDH activity. The proximity ligation assay between MFN1 and MFN2 demonstrates that their interaction is restricted to subsarcolemmal mitochondria in adult fibers while distributed evenly in neonatal fibers. These differences between postural and locomotory muscles suggest their physiological and metabolic properties are different.
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Grants
- ECR/ 2016/001247 DST | Science and Engineering Research Board (SERB)
- BT/RLF/Re-entry/41/2014 Department of Biotechnology, Ministry of Science and Technology, India (DBT)
- BT/PR28935/MED/30/2035/2018 Department of Biotechnology, Ministry of Science and Technology, India (DBT)
- 45/3/2019/PHY/BMS Indian Council of Medical Research (ICMR)
- 45/9/2020-PHY/BMS Indian Council of Medical Research (ICMR)
- 09/1035(0011)/2017-EMR-I CSIR | Human Resource Development Group (HRDG)
- DST/INSPIRE Fellowship/2018/IF180892 Department of Science and Technology, Ministry of Science and Technology, India (DST)
- DST | Science and Engineering Research Board (SERB)
- Department of Biotechnology, Ministry of Science and Technology, India (DBT)
- Indian Council of Medical Research (ICMR)
- CSIR | Human Resource Development Group (HRDG)
- Department of Science and Technology, Ministry of Science and Technology, India (DST)
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Affiliation(s)
- Sunil Pani
- School of BiotechnologyKIIT UniversityBhubaneswarOdishaIndia
| | - Unmod Senapati
- School of BiotechnologyKIIT UniversityBhubaneswarOdishaIndia
| | - Benudhara Pati
- School of BiotechnologyKIIT UniversityBhubaneswarOdishaIndia
| | | | | | - Punyadhara Pani
- School of BiotechnologyKIIT UniversityBhubaneswarOdishaIndia
| | - Subhasmita Rout
- School of BiotechnologyKIIT UniversityBhubaneswarOdishaIndia
| | | | - Naresh C. Bal
- School of BiotechnologyKIIT UniversityBhubaneswarOdishaIndia
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4
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Gao YH, Wen DT, Du ZR, Wang JF, Wang SJ. Muscle Psn gene combined with exercise contribute to healthy aging of skeletal muscle and lifespan by adaptively regulating Sirt1/PGC-1α and arm pathway. PLoS One 2024; 19:e0300787. [PMID: 38753634 PMCID: PMC11098322 DOI: 10.1371/journal.pone.0300787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/05/2024] [Indexed: 05/18/2024] Open
Abstract
The Presenilin (Psn) gene is closely related to aging, but it is still unclear the role of Psn genes in skeletal muscle. Here, the Psn-UAS/Mhc-GAL4 system in Drosophila was used to regulate muscle Psn overexpression(MPO) and muscle Psn knockdown(MPK). Drosophila were subjected to endurance exercise from 4 weeks to 5 weeks old. The results showed that MPO and exercise significantly increased climbing speed, climbing endurance, lifespan, muscle SOD activity, Psn expression, Sirt1 expression, PGC-1α expression, and armadillo (arm) expression in aged Drosophila, and they significantly decreased muscle malondialdehyde levels. Interestingly, when the Psn gene is knockdown by 0.78 times, the PGC-1α expression and arm expression were also down-regulated, but the exercise capacity and lifespan were increased. Furthermore, exercise combined with MPO further improved the exercise capacity and lifespan. MPK combined with exercise further improves the exercise capacity and lifespan. Thus, current results confirmed that the muscle Psn gene was a vital gene that contributed to the healthy aging of skeletal muscle since whether it was overexpressed or knocked down, the aging progress of skeletal muscle structure and function was slowed down by regulating the activity homeostasis of Sirt1/PGC-1α pathway and Psn/arm pathway. Exercise enhanced the function of the Psn gene to delay skeletal muscle aging by up regulating the activity of the Sirt1/PGC-1α pathway and Psn/arm pathway.
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Affiliation(s)
- Ying-hui Gao
- Ludong University, City Yantai, Shandong Province, China
| | - Deng-tai Wen
- Ludong University, City Yantai, Shandong Province, China
| | - Zhong-rui Du
- Ludong University, City Yantai, Shandong Province, China
| | - Jing-feng Wang
- Ludong University, City Yantai, Shandong Province, China
| | - Shi-jie Wang
- Ludong University, City Yantai, Shandong Province, China
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Higashihara T, Odawara M, Nishi H, Sugasawa T, Suzuki Y, Kametaka S, Inagi R, Nangaku M. Uremia Impedes Skeletal Myocyte Myomixer Expression and Fusogenic Activity: Implication for Uremic Sarcopenia. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:759-771. [PMID: 38637109 DOI: 10.1016/j.ajpath.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 12/10/2023] [Accepted: 01/10/2024] [Indexed: 04/20/2024]
Abstract
In patients with chronic kidney disease (CKD), skeletal muscle mass and function are known to occasionally decline. However, the muscle regeneration and differentiation process in uremia has not been extensively studied. In mice with CKD induced by adenine-containing diet, the tibialis anterior muscle injured using a barium chloride injection method recovered poorly as compared to control mice. In the cultured murine skeletal myocytes, stimulation with indoxyl sulfate (IS), a representative uremic toxin, morphologically jeopardized the differentiation, which was counteracted by L-ascorbic acid (L-AsA) treatment. Transcriptome analysis of cultured myocytes identified a set of genes whose expression was down-regulated by IS stimulation but up-regulated by L-AsA treatment. Gene silencing of myomixer, one of the genes in the set, impaired myocyte fusion during differentiation. By contrast, lentiviral overexpression of myomixer compensated for a hypomorphic phenotype caused by IS treatment. The split-luciferase technique demonstrated that IS stimulation negatively affected early myofusion activity that was rescued by L-AsA treatment. Lastly, in mice with CKD compared with control mice, myomixer expression in the muscle tissue in addition to the muscle weight after the injury was reduced, both of which were restored with L-AsA treatment. Collectively, data showed that the uremic milieu impairs the expression of myomixer and impedes the myofusion process. Considering frequent musculoskeletal injuries in uremic patients, defective myocyte fusion followed by delayed muscle damage recovery could underlie their muscle loss and weakness.
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Affiliation(s)
- Takaaki Higashihara
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Motoki Odawara
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hiroshi Nishi
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.
| | - Takehito Sugasawa
- Laboratory of Clinical Examination/Sports Medicine, Department of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan; Department of Sports Medicine Analysis, Open Facility Network Office, Research Facility Center for Science and Technology, University of Tsukuba, Ibaraki, Japan
| | - Yumika Suzuki
- Division of Biofunctional Sciences, Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - Satoshi Kametaka
- Division of Biofunctional Sciences, Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Aichi, Japan
| | - Reiko Inagi
- Division of CKD Pathophysiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
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Nie L, He K, Qiu C, Li Q, Xiong B, Gao C, Zhang X, Jing M, Wu W, Liu J, Zhang G, Zhang Z, Yang X, Sun Y, Wang Y. Tetramethylpyrazine Nitrone alleviates D-galactose-induced murine skeletal muscle aging and motor deficits by activating the AMPK signaling pathway. Biomed Pharmacother 2024; 173:116415. [PMID: 38479182 DOI: 10.1016/j.biopha.2024.116415] [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: 01/16/2024] [Revised: 02/29/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024] Open
Abstract
Tetramethylpyrazine nitrone (TBN), a novel derivative of tetramethylpyrazine (TMP) designed and synthesized by our group, possesses multi-functional mechanisms of action and displays broad protective effects in vitro and in animal models of age-related brain disorders such as stroke, Alzheimer's disease (AD), Amyotrophic Lateral Sclerosis (ALS) and Parkinson's disease (PD). In the present report, we investigated the effects of TBN on aging, specifically on muscle aging and the associated decline of motor functions. Using a D-galactose-induced aging mouse model, we found that TBN could reverse the levels of several senescence and aging markers including p16, p21, ceramides, and telomere length and increase the wet-weight ratio of gastrocnemius muscle tissue, demonstrating its efficacy in ameliorating muscle aging. Additionally, the pharmacological effects of TBN on motor deficits (gait analysis, pole-climbing test and grip strength test), muscle fibrosis (hematoxylin & eosin (HE), Masson staining, and αSMA staining), inflammatory response (IL-1β, IL-6, and TNF-α), and mitochondrial function (ATP, mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) were also confirmed in the D-galactose-induced aging models. Further experiments demonstrated that TBN alleviated muscle aging and improved the decline of age-related motor deficits through an AMPK-dependent mechanism. These findings highlight the significance of TBN as a potential anti-aging agent to combat the occurrence and development of aging and age-related diseases.
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Affiliation(s)
- Lulin Nie
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China; Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Kaiwu He
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), No. 1017, Dongmen North Road, Shenzhen, 518020, China; Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, China
| | - Chaoming Qiu
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China; Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Qing Li
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Bocheng Xiong
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Chuanyue Gao
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Xiufen Zhang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Mei Jing
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Wei Wu
- Department of Hematology, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Jianjun Liu
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Gaoxiao Zhang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Zaijun Zhang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Xifei Yang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
| | - Yewei Sun
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China.
| | - Yuqiang Wang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China.
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7
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Oroszi T, Felszeghy K, Luiten PG, Schoemaker RG, van der Zee EA, Nyakas C. Whole body vibration ameliorates anxiety-like behavior and memory functions in 30 months old senescent male rats. Heliyon 2024; 10:e26608. [PMID: 38404823 PMCID: PMC10884920 DOI: 10.1016/j.heliyon.2024.e26608] [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: 04/04/2023] [Revised: 01/22/2024] [Accepted: 02/15/2024] [Indexed: 02/27/2024] Open
Abstract
Whole body vibration (WBV) is a form of passive exercise that offers an alternative physical training to aged individuals with limitations in their physical and mental capabilities. The aim of the present study was to explore the therapeutic potential of five weeks of WBV on anxiety-like behaviors as well as learning and memory abilities in senescent thirty months old rats. Animals were exposed to 5 min vibration twice per day, five times per week during the five consecutive weeks. Pseudo WBV treated animals served as controls. After five weeks of WBV treatment, animals were tested for anxiety-like behavior by the open field test and for spatial and object memory functions by the novel and spatial object recognition tests, respectively. As a result, anxiety-like and exploratory behaviors were significantly improved in the WBV treated group compared to the pseudo WBV group. Furthermore, WBV treatment increased discrimination performance in both spatial and object memory function testing. These results indicate that WBV treatment in thirty months old rats seems to have comparable beneficial effects on age-related emotional and cognitive performance as what has been reported in younger age groups.
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Affiliation(s)
- Tamás Oroszi
- Department of Molecular Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, the Netherlands
- Research Center for Molecular Exercise Science, Hungarian University of Sports Science, Budapest, Hungary
| | - Klára Felszeghy
- Research Center for Molecular Exercise Science, Hungarian University of Sports Science, Budapest, Hungary
- Department of Morphology and Physiology, Health Science Faculty, Semmelweis University, Budapest, Hungary
| | - Paul G.M. Luiten
- Department of Molecular Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, the Netherlands
| | - Regien G. Schoemaker
- Department of Molecular Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, the Netherlands
| | - Eddy A. van der Zee
- Department of Molecular Neurobiology, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, the Netherlands
| | - Csaba Nyakas
- Research Center for Molecular Exercise Science, Hungarian University of Sports Science, Budapest, Hungary
- Department of Morphology and Physiology, Health Science Faculty, Semmelweis University, Budapest, Hungary
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Huang K, Li Z, Zhong D, Yang Y, Yan X, Feng T, Wang X, Zhang L, Shen X, Chen M, Luo X, Cui K, Huang J, Rehman SU, Jiang Y, Shi D, Pauciullo A, Tang X, Liu Q, Li H. A Circular RNA Generated from Nebulin (NEB) Gene Splicing Promotes Skeletal Muscle Myogenesis in Cattle as Detected by a Multi-Omics Approach. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2300702. [PMID: 38036415 PMCID: PMC10797441 DOI: 10.1002/advs.202300702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 10/16/2023] [Indexed: 12/02/2023]
Abstract
Cattle and the draught force provided by its skeletal muscle have been integral to agro-ecosystems of agricultural civilization for millennia. However, relatively little is known about the cattle muscle functional genomics (including protein coding genes, non-coding RNA, etc.). Circular RNAs (circRNAs), as a new class of non-coding RNAs, can be effectively translated into detectable peptides, which enlightened us on the importance of circRNAs in cattle muscle physiology function. Here, RNA-seq, Ribosome profiling (Ribo-seq), and peptidome data are integrated from cattle skeletal muscle, and detected five encoded peptides from circRNAs. It is further identified and functionally characterize a 907-amino acids muscle-specific peptide that is named circNEB-peptide because derived by the splicing of Nebulin (NEB) gene. This peptide localizes to the nucleus and cytoplasm and directly interacts with SKP1 and TPM1, key factors regulating physiological activities of myoblasts, via ubiquitination and myoblast fusion, respectively. The circNEB-peptide is found to promote myoblasts proliferation and differentiation in vitro, and induce muscle regeneration in vivo. These findings suggest circNEB-peptide is an important regulator of skeletal muscle regeneration and underscore the possibility that more encoding polypeptides derived by RNAs currently annotated as non-coding exist.
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Affiliation(s)
- Kongwei Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and EngineeringFoshan UniversityFoshan528225China
- School of Biology and Biological EngineeringSouth China University of TechnologyGuangzhou510641China
| | - Zhipeng Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Dandan Zhong
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Yufeng Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Xiuying Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Tong Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Xiaobo Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Liyin Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Xinyue Shen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Mengjie Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Xier Luo
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and EngineeringFoshan UniversityFoshan528225China
| | - Kuiqing Cui
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and EngineeringFoshan UniversityFoshan528225China
| | - Jieping Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Saif Ur Rehman
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Yu Jiang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and TechnologyNorthwest A&F UniversityYangling712100China
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
| | - Alfredo Pauciullo
- Department of Agricultural, Forest and Food SciencesUniversity of TorinoGrugliasco (TO)10095Italy
| | - Xiangfang Tang
- State Key Laboratory of Animal Nutrition and Feeding,Institute of Animal SciencesChinese Academy of Agricultural SciencesBeijing100193China
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and EngineeringFoshan UniversityFoshan528225China
| | - Hui Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and TechnologyGuangxi UniversityNanning530005China
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Xhuti D, Nilsson MI, Manta K, Tarnopolsky MA, Nederveen JP. Circulating exosome-like vesicle and skeletal muscle microRNAs are altered with age and resistance training. J Physiol 2023; 601:5051-5073. [PMID: 36722691 DOI: 10.1113/jp282663] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/25/2023] [Indexed: 02/02/2023] Open
Abstract
The age-related loss of skeletal muscle mass and functionality, known as sarcopenia, is a critical risk factor for morbidity and all-cause mortality. Resistance exercise training (RET) is the primary countermeasure to fight sarcopenia and ageing. Altered intercellular communication is a hallmark of ageing, which is not well elucidated. Circulating extracellular vesicles (EVs), including exosomes, contribute to intercellular communication by delivering microRNAs (miRNAs), which modulate post-translational modifications, and have been shown to be released following exercise. There is little evidence regarding how EVs or EV-miRNAs are altered with age or RET. Therefore, we sought to characterize circulating EVs in young and older individuals, prior to and following a 12-week resistance exercise programme. Plasma EVs were isolated using size exclusion chromatography and ultracentrifugation. We found that ageing reduced circulating expression markers of CD9, and CD81. Using late-passage human myotubes as a model for ageing in vitro, we show significantly lower secreted exosome-like vesicles (ELVs). Further, levels of circulating ELV-miRNAs associated with muscle health were lower in older individuals at baseline but increased following RET to levels comparable to young. Muscle biopsies show similar age-related reductions in miRNA expressions, with largely no effect of training. This is reflected in vitro, where aged myotubes show significantly reduced expression of endogenous and secreted muscle-specific miRNAs (myomiRs). Lastly, proteins associated with ELV and miRNA biogenesis were significantly higher in both older skeletal muscle tissues and aged human myotubes. Together we show that ageing significantly affects ELV and miRNA cargo biogenesis, and release. RET can partially normalize this altered intercellular communication. KEY POINTS: We show that ageing reduces circulating expression of exosome-like vesicle (ELV) markers, CD9 and CD81. Using late-passage human skeletal myotubes as a model of ageing, we show that secreted ELV markers are significantly reduced in vitro. We find circulating ELV miRNAs associated with skeletal muscle health are lower in older individuals but can increase following resistance exercise training (RET). In skeletal muscle, we find altered expression of miRNAs in older individuals, with no effect of RET. Late-passage myotubes also appear to have aberrant production of endogenous myomiRs with lower abundance than youthful counterparts In older skeletal muscle and late-passage myotubes, proteins involved with ELV- and miRNA biogenesis are upregulated.
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Affiliation(s)
- Donald Xhuti
- Department of Pediatrics, McMaster University Health Sciences Centre, Hamilton, Ontario, Canada
| | - Mats I Nilsson
- Exerkine Corporation, McMaster University Medical Centre (MUMC), Hamilton, Ontario, Canada
| | - Katherine Manta
- Department of Pediatrics, McMaster University Health Sciences Centre, Hamilton, Ontario, Canada
| | - Mark A Tarnopolsky
- Department of Pediatrics, McMaster University Health Sciences Centre, Hamilton, Ontario, Canada
- Exerkine Corporation, McMaster University Medical Centre (MUMC), Hamilton, Ontario, Canada
| | - Joshua P Nederveen
- Department of Pediatrics, McMaster University Health Sciences Centre, Hamilton, Ontario, Canada
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10
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Overkamp M, Houben LHP, Aussieker T, van Kranenburg JMX, Pinckaers PJM, Mikkelsen UR, Beelen M, Beijer S, van Loon LJC, Snijders T. Resistance Exercise Counteracts the Impact of Androgen Deprivation Therapy on Muscle Characteristics in Cancer Patients. J Clin Endocrinol Metab 2023; 108:e907-e915. [PMID: 37161470 PMCID: PMC10505531 DOI: 10.1210/clinem/dgad245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/05/2023] [Accepted: 05/09/2023] [Indexed: 05/11/2023]
Abstract
CONTEXT Androgen deprivation therapy (ADT) forms the cornerstone in prostate cancer (PCa) treatment. However, ADT also lowers skeletal muscle mass. OBJECTIVE To identify the impact of ADT with and without resistance exercise training on muscle fiber characteristics in PCa patients. METHODS Twenty-one PCa patients (72 ± 6 years) starting ADT were included. Tissue samples from the vastus lateralis muscle were assessed at baseline and after 20 weeks of usual care (n = 11) or resistance exercise training (n = 10). Type I and II muscle fiber distribution, fiber size, and myonuclear and capillary contents were determined by immunohistochemistry. RESULTS Significant decreases in type I (from 7401 ± 1183 to 6489 ± 1293 μm2, P < .05) and type II (from 6225 ± 1503 to 5014 ± 714 μm2, P < .05) muscle fiber size were observed in the usual care group. In addition, type I and type II individual capillary-to-fiber ratio (C/Fi) declined (-12% ± 12% and -20% ± 21%, respectively, P < .05). In contrast, significant increases in type I (from 6700 ± 1464 to 7772 ± 1319 μm2, P < .05) and type II (from 5248 ± 892 to 6302 ± 1385 μm2, P < .05) muscle fiber size were observed in the training group, accompanied by an increase in type I and type II muscle fiber myonuclear contents (+24% ± 33% and +21% ± 23%, respectively, P < .05) and type I C/Fi (+18% ± 14%, P < .05). CONCLUSION The onset of ADT is followed by a decline in both type I and type II muscle fiber size and capillarization in PCa patients. Resistance exercise training offsets the negative impact of ADT and increases type I and II muscle fiber size and type I muscle fiber capillarization in these patients.
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Affiliation(s)
- Maarten Overkamp
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
- Department of Research & Development, Netherlands Comprehensive Cancer Organisation, Utrecht, 3511 DT, the Netherlands
- Top Institute Food and Nutrition (TiFN), Wageningen, 6709 PA, the Netherlands
| | - Lisanne H P Houben
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
- Department of Research & Development, Netherlands Comprehensive Cancer Organisation, Utrecht, 3511 DT, the Netherlands
- Top Institute Food and Nutrition (TiFN), Wageningen, 6709 PA, the Netherlands
| | - Thorben Aussieker
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
| | - Janneau M X van Kranenburg
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
| | - Philippe J M Pinckaers
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
| | - Ulla R Mikkelsen
- Department of Nutrition & Health, Research & Development, Arla Foods Ingredients Group P/S, Viby J, 8260, Denmark
| | - Milou Beelen
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
- Top Institute Food and Nutrition (TiFN), Wageningen, 6709 PA, the Netherlands
| | - Sandra Beijer
- Department of Research & Development, Netherlands Comprehensive Cancer Organisation, Utrecht, 3511 DT, the Netherlands
- Top Institute Food and Nutrition (TiFN), Wageningen, 6709 PA, the Netherlands
| | - Luc J C van Loon
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
- Top Institute Food and Nutrition (TiFN), Wageningen, 6709 PA, the Netherlands
| | - Tim Snijders
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, 6200 MD, the Netherlands
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11
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Jafari A, Behjat E, Malektaj H, Mobini F. Alignment behavior of nerve, vascular, muscle, and intestine cells in two- and three-dimensional strategies. WIREs Mech Dis 2023; 15:e1620. [PMID: 37392045 DOI: 10.1002/wsbm.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 02/28/2023] [Accepted: 05/23/2023] [Indexed: 07/02/2023]
Abstract
By harnessing structural hierarchical insights, plausibly simulate better ones imagination to figure out the best choice of methods for reaching out the unprecedented developments of the tissue engineering products as a next level. Constructing a functional tissue that incorporates two-dimensional (2D) or higher dimensions requires overcoming technological or biological limitations in order to orchestrate the structural compilation of one-dimensional and 2D sheets (microstructures) simultaneously (in situ). This approach enables the creation of a layered structure that can be referred to as an ensemble of layers or, after several days of maturation, a direct or indirect joining of layers. Here, we have avoided providing a detailed methodological description of three-dimensional and 2D strategies, except for a few interesting examples that highlight the higher alignment of cells and emphasize rarely remembered facts associated with vascular, peripheral nerve, muscle, and intestine tissues. The effective directionality of cells in conjunction with geometric cues (in the range of micrometers) is well known to affect a variety of cell behaviors. The curvature of a cell's environment is one of the factors that influence the formation of patterns within tissues. The text will cover cell types containing some level of stemness, which will be followed by their consequences for tissue formation. Other important considerations pertain to cytoskeleton traction forces, cell organelle positioning, and cell migration. An overview of cell alignment along with several pivotal molecular and cellular level concepts, such as mechanotransduction, chirality, and curvature of structure effects on cell alignments will be presented. The mechanotransduction term will be used here in the context of the sensing capability that cells show as a result of force-induced changes either at the conformational or the organizational levels, a capability that allows us to modify cell fate by triggering downstream signaling pathways. A discussion of the cells' cytoskeleton and of the stress fibers involvement in altering the cell's circumferential constitution behavior (alignment) based on exposed scaffold radius will be provided. Curvatures with size similarities in the range of cell sizes cause the cell's behavior to act as if it was in an in vivo tissue environment. The revision of the literature, patents, and clinical trials performed for the present study shows that there is a clear need for translational research through the implementation of clinical trial platforms that address the tissue engineering possibilities raised in the current revision. This article is categorized under: Infectious Diseases > Biomedical Engineering Neurological Diseases > Biomedical Engineering Cardiovascular Diseases > Biomedical Engineering.
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Affiliation(s)
- Amir Jafari
- Laboratório de Neurofisiologia, Instituto de Biologia Roberto Alcantara Gomes, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Erfan Behjat
- Department of Biomaterials, School of Metallurgy & Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Haniyeh Malektaj
- Department of Materials and Production, Aalborg University, Aalborg, Denmark
| | - Faezeh Mobini
- Molecular Simulation Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
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12
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Richards NJ, Alqallaf A, Mitchell RD, Parnell A, Haidar HB, Almeida JR, Williams J, Vijayakumar P, Balogun A, Matsakas A, Trim SA, Patel K, Vaiyapuri S. Indian Ornamental Tarantula ( Poecilotheria regalis) Venom Affects Myoblast Function and Causes Skeletal Muscle Damage. Cells 2023; 12:2074. [PMID: 37626884 PMCID: PMC10453882 DOI: 10.3390/cells12162074] [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: 06/12/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Envenomation by the Indian ornamental tarantula (Poecilotheria regalis) is medically relevant to humans, both in its native India and worldwide, where they are kept as pets. Muscle-related symptoms such as cramps and pain are commonly reported in humans following envenomation by this species. There is no specific treatment, including antivenom, for its envenomation. Moreover, the scientific knowledge of the impact of this venom on skeletal muscle function is highly limited. Therefore, we carried out this study to better understand the myotoxic properties of Poecilotheria regalis venom by determining its effects in cultured myoblasts and in the tibialis anterior muscle in mice. While there was no effect found on undifferentiated myoblasts, the venom affected differentiated multinucleated myotubes resulting in the reduction of fusion and atrophy of myotubes. Similarly, intramuscular administration of this venom in the tibialis anterior muscle in mice resulted in extensive muscle damage on day 5. However, by day 10, the regeneration was evident, and the regeneration process continued until day 20. Nevertheless, some tissue abnormalities including reduced dystrophin expression and microthrombi presence were observed on day 20. Overall, this study demonstrates the ability of this venom to induce significant muscle damage and affect its regeneration in the early stages. These data provide novel mechanistic insights into this venom-induced muscle damage and guide future studies to isolate and characterise individual toxic component(s) that induce muscle damage and their significance in developing better therapeutics.
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Affiliation(s)
- Nicholas J. Richards
- School of Biological Sciences, University of Reading, Reading RG6 6UB, UK; (N.J.R.); (A.A.); (A.P.); (H.B.H.)
| | - Ali Alqallaf
- School of Biological Sciences, University of Reading, Reading RG6 6UB, UK; (N.J.R.); (A.A.); (A.P.); (H.B.H.)
- Medical Services Authority, Ministry of Defence, Kuwait City 13012, Kuwait
| | | | - Andrew Parnell
- School of Biological Sciences, University of Reading, Reading RG6 6UB, UK; (N.J.R.); (A.A.); (A.P.); (H.B.H.)
- Micregen Ltd., Thames Valley Science Park, Reading RG2 9LH, UK;
| | - Husain Bin Haidar
- School of Biological Sciences, University of Reading, Reading RG6 6UB, UK; (N.J.R.); (A.A.); (A.P.); (H.B.H.)
| | - José R. Almeida
- School of Pharmacy, University of Reading, Reading RG6 6UB, UK; (J.R.A.); (J.W.); (P.V.)
| | - Jarred Williams
- School of Pharmacy, University of Reading, Reading RG6 6UB, UK; (J.R.A.); (J.W.); (P.V.)
| | - Pradeep Vijayakumar
- School of Pharmacy, University of Reading, Reading RG6 6UB, UK; (J.R.A.); (J.W.); (P.V.)
| | - Adedoyin Balogun
- Molecular Physiology Laboratory, Centre for Biomedicine, Hull York Medical School, Hull HU6 7RX, UK
| | - Antonios Matsakas
- Molecular Physiology Laboratory, Centre for Biomedicine, Hull York Medical School, Hull HU6 7RX, UK
| | | | - Ketan Patel
- School of Biological Sciences, University of Reading, Reading RG6 6UB, UK; (N.J.R.); (A.A.); (A.P.); (H.B.H.)
| | - Sakthivel Vaiyapuri
- School of Pharmacy, University of Reading, Reading RG6 6UB, UK; (J.R.A.); (J.W.); (P.V.)
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Park JYC, King A, Björk V, English BW, Fedintsev A, Ewald CY. Strategic outline of interventions targeting extracellular matrix for promoting healthy longevity. Am J Physiol Cell Physiol 2023; 325:C90-C128. [PMID: 37154490 DOI: 10.1152/ajpcell.00060.2023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/28/2023] [Accepted: 04/28/2023] [Indexed: 05/10/2023]
Abstract
The extracellular matrix (ECM), composed of interlinked proteins outside of cells, is an important component of the human body that helps maintain tissue architecture and cellular homeostasis. As people age, the ECM undergoes changes that can lead to age-related morbidity and mortality. Despite its importance, ECM aging remains understudied in the field of geroscience. In this review, we discuss the core concepts of ECM integrity, outline the age-related challenges and subsequent pathologies and diseases, summarize diagnostic methods detecting a faulty ECM, and provide strategies targeting ECM homeostasis. To conceptualize this, we built a technology research tree to hierarchically visualize possible research sequences for studying ECM aging. This strategic framework will hopefully facilitate the development of future research on interventions to restore ECM integrity, which could potentially lead to the development of new drugs or therapeutic interventions promoting health during aging.
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Affiliation(s)
- Ji Young Cecilia Park
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
| | - Aaron King
- Foresight Institute, San Francisco, California, United States
| | | | - Bradley W English
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | | | - Collin Y Ewald
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
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Kumar P, Liu C, Suliburk J, Hsu JW, Muthupillai R, Jahoor F, Minard CG, Taffet GE, Sekhar RV. Supplementing Glycine and N-Acetylcysteine (GlyNAC) in Older Adults Improves Glutathione Deficiency, Oxidative Stress, Mitochondrial Dysfunction, Inflammation, Physical Function, and Aging Hallmarks: A Randomized Clinical Trial. J Gerontol A Biol Sci Med Sci 2023; 78:75-89. [PMID: 35975308 PMCID: PMC9879756 DOI: 10.1093/gerona/glac135] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Elevated oxidative stress (OxS), mitochondrial dysfunction, and hallmarks of aging are identified as key contributors to aging, but improving/reversing these defects in older adults (OA) is challenging. In prior studies, we identified that deficiency of the intracellular antioxidant glutathione (GSH) could play a role and reported that supplementing GlyNAC (combination of glycine and N-acetylcysteine [NAC]) in aged mice improved GSH deficiency, OxS, mitochondrial fatty-acid oxidation (MFO), and insulin resistance (IR). To test whether GlyNAC supplementation in OA could improve GSH deficiency, OxS, mitochondrial dysfunction, IR, physical function, and aging hallmarks, we conducted a placebo-controlled randomized clinical trial. METHODS Twenty-four OA and 12 young adults (YA) were studied. OA was randomized to receive either GlyNAC (N = 12) or isonitrogenous alanine placebo (N = 12) for 16-weeks; YA (N = 12) received GlyNAC for 2-weeks. Participants were studied before, after 2-weeks, and after 16-weeks of supplementation to assess GSH concentrations, OxS, MFO, molecular regulators of energy metabolism, inflammation, endothelial function, IR, aging hallmarks, gait speed, muscle strength, 6-minute walk test, body composition, and blood pressure. RESULTS Compared to YA, OA had GSH deficiency, OxS, mitochondrial dysfunction (with defective molecular regulation), inflammation, endothelial dysfunction, IR, multiple aging hallmarks, impaired physical function, increased waist circumference, and systolic blood pressure. GlyNAC (and not placebo) supplementation in OA improved/corrected these defects. CONCLUSION GlyNAC supplementation in OA for 16-weeks was safe and well-tolerated. By combining the benefits of glycine, NAC and GSH, GlyNAC is an effective nutritional supplement that improves and reverses multiple age-associated abnormalities to promote health in aging humans. Clinical Trials Registration Number: NCT01870193.
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Affiliation(s)
- Premranjan Kumar
- Translational Metabolism Unit, Section of Endocrinology, Diabetes and Metabolism, Department of Medicine
- Baylor College of Medicine, Houston, TX, USA
| | - Chun Liu
- Translational Metabolism Unit, Section of Endocrinology, Diabetes and Metabolism, Department of Medicine
- Baylor College of Medicine, Houston, TX, USA
| | - James Suliburk
- Department of Surgery
- Baylor College of Medicine, Houston, TX, USA
| | - Jean W Hsu
- Baylor College of Medicine, Houston, TX, USA
- Baylor-St. Luke’s Medical Center
| | - Raja Muthupillai
- Baylor-St. Luke’s Medical Center
- Baylor College of Medicine, Houston, TX, USA
| | - Farook Jahoor
- USDA/ARS Children’s Nutrition Research Center
- Baylor College of Medicine, Houston, TX, USA
| | - Charles G Minard
- Institute of Clinical and Translational Research
- Baylor College of Medicine, Houston, TX, USA
| | - George E Taffet
- Section of Geriatrics, Department of Medicine
- Baylor College of Medicine, Houston, TX, USA
| | - Rajagopal V Sekhar
- Translational Metabolism Unit, Section of Endocrinology, Diabetes and Metabolism, Department of Medicine
- Baylor College of Medicine, Houston, TX, USA
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15
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Dowling P, Gargan S, Swandulla D, Ohlendieck K. Fiber-Type Shifting in Sarcopenia of Old Age: Proteomic Profiling of the Contractile Apparatus of Skeletal Muscles. Int J Mol Sci 2023; 24:ijms24032415. [PMID: 36768735 PMCID: PMC9916839 DOI: 10.3390/ijms24032415] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
The progressive loss of skeletal muscle mass and concomitant reduction in contractile strength plays a central role in frailty syndrome. Age-related neuronal impairments are closely associated with sarcopenia in the elderly, which is characterized by severe muscular atrophy that can considerably lessen the overall quality of life at old age. Mass-spectrometry-based proteomic surveys of senescent human skeletal muscles, as well as animal models of sarcopenia, have decisively improved our understanding of the molecular and cellular consequences of muscular atrophy and associated fiber-type shifting during aging. This review outlines the mass spectrometric identification of proteome-wide changes in atrophying skeletal muscles, with a focus on contractile proteins as potential markers of changes in fiber-type distribution patterns. The observed trend of fast-to-slow transitions in individual human skeletal muscles during the aging process is most likely linked to a preferential susceptibility of fast-twitching muscle fibers to muscular atrophy. Studies with senescent animal models, including mostly aged rodent skeletal muscles, have confirmed fiber-type shifting. The proteomic analysis of fast versus slow isoforms of key contractile proteins, such as myosin heavy chains, myosin light chains, actins, troponins and tropomyosins, suggests them as suitable bioanalytical tools of fiber-type transitions during aging.
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Affiliation(s)
- Paul Dowling
- Department of Biology, Maynooth University, National University of Ireland, W23 F2H6 Maynooth, Co. Kildare, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland
| | - Stephen Gargan
- Department of Biology, Maynooth University, National University of Ireland, W23 F2H6 Maynooth, Co. Kildare, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland
| | - Dieter Swandulla
- Institute of Physiology, University of Bonn, D53115 Bonn, Germany
| | - Kay Ohlendieck
- Department of Biology, Maynooth University, National University of Ireland, W23 F2H6 Maynooth, Co. Kildare, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland
- Correspondence: ; Tel.: +353-1-7083842
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Ischemic Stroke Induces Skeletal Muscle Damage and Alters Transcriptome Profile in Rats. J Clin Med 2023; 12:jcm12020547. [PMID: 36675476 PMCID: PMC9865444 DOI: 10.3390/jcm12020547] [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: 12/20/2022] [Revised: 01/04/2023] [Accepted: 01/07/2023] [Indexed: 01/12/2023] Open
Abstract
To establish pathological features of skeletal muscle post-stroke and to provide a background for promising interventions. Adult male SD rats were selected and randomly divided into a control group, a sham group, and a middle cerebral artery occlusion (MCAO) group. The tolerance and capability of exercise were separately collected on days 1, 3, 5, and 7 after the MCAO operation. The neurological deficits, brain infarct volume, soleus histopathology, mRNA-seq analysis, flow cytometry, immunofluorescence, and protein expression analysis were performed on the seventh day. Rats in the MCAO group showed that soleus tissue weight, pulling force, exercise capacity, endurance, and muscle structure were significantly decreased. Moreover, the RNA sequencing array revealed that mitochondrial-mediated autophagy was the critical pathological process, and the result of transcriptomic findings was confirmed at the translational level. The mitochondrial membrane potential and the mfn2 and p62 protein expression were decreased, and the Beclin-1, ATG5, Parkin, PINK1, LC3B, and Drp1 expression were upregulated; these results were consistent with immunohistochemistry. This is the first report on the pathological features of limbic symptoms on day 7 after MCAO surgery in rats. In addition, we further confirmed that autophagy is one of the main causative mechanisms of reduced muscle function after stroke.
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17
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Liu S, Liu H, Liu Y, Zhang J, Liu Z, Zheng Z, Luo E. Adiponectin receptors activation performs dual effects on regulating myogenesis and adipogenesis of young and aged muscle satellite cells. Cell Prolif 2022; 56:e13370. [PMID: 36484401 PMCID: PMC9977665 DOI: 10.1111/cpr.13370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Skeletal muscle mass and function deteriorate with ageing. Adiponectin receptors (APNrs), mainly activated by adiponectin, participate in various physiological activities and have varying signalling pathways at different ages. This study aimed to explore whether discrepant performance exists in APNr activation regulating young and aged muscle satellite cells (MUSCs) and whether age-related muscle dysfunction could be alleviated upon APNr activation. METHODS The gastrocnemius muscle phenotype was observed in male mice aged 2 and 18 months. An APNr agonist (AdipoRon) was used in vitro and in vivo to investigate the changes in cell biological behaviours and whether muscle dysfunction could be retarded after APNr activation. RESULTS Aged mice exhibited decreased muscle mass and increased fat infiltration. APNr activation inhibited C2C12 cells and young MUSCs (YMUSCs) proliferation but showed no obvious effect on aged MUSCs (AMUSCs). Moreover, APNr activation inhibited the migration of both YMUSCs and AMUSCs. Interestingly, APNr activation hampered the myogenic differentiation but advanced the adipogenic differentiation of YMUSCs, yet exact opposite results were presented in AMUSCs. It was demonstrated that Wnt and PI3K signalling pathways may mediate the phenotypic differences. Furthermore, in vivo experiments verified that APNr activation ameliorated age-related muscle atrophy and excessive fat infiltration. CONCLUSIONS APNr activation exerted dual effects on the regulation of myogenesis and adipogenesis of YMUSCs and AMUSCs and rescued age-related skeletal muscle dysfunction.
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Affiliation(s)
- Shibo Liu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral DiseasesWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Department of Oral Maxillofacial SurgeryWest China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Hanghang Liu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral DiseasesWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Emergency DepartmentWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Maine Medical Center Research InstituteScarboroughMaineUSA
| | - Yao Liu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral DiseasesWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Department of Oral Maxillofacial SurgeryWest China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Ju Zhang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral DiseasesWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Department of Oral Maxillofacial SurgeryWest China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Zhikai Liu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral DiseasesWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Department of Oral Maxillofacial SurgeryWest China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - Zizhuo Zheng
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral DiseasesWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Department of Oral Maxillofacial SurgeryWest China Hospital of Stomatology, Sichuan UniversityChengduChina
| | - En Luo
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral DiseasesWest China Hospital of Stomatology, Sichuan UniversityChengduChina,Department of Oral Maxillofacial SurgeryWest China Hospital of Stomatology, Sichuan UniversityChengduChina
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Zha W, Sun Y, Gong W, Li L, Kim W, Li H. Ginseng and ginsenosides: Therapeutic potential for sarcopenia. Biomed Pharmacother 2022; 156:113876. [DOI: 10.1016/j.biopha.2022.113876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/05/2022] [Accepted: 10/13/2022] [Indexed: 11/02/2022] Open
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Gaulton N, Wakelin G, Young LV, Wotherspoon S, Kamal M, Parise G, Nederveen JP, Holwerda A, Verdijk LB, van Loon LJC, Snijders T, Johnston AP. Twist2-expressing cells reside in human skeletal muscle and are responsive to aging and resistance exercise training. FASEB J 2022; 36:e22642. [PMID: 36374263 DOI: 10.1096/fj.202201349rr] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022]
Abstract
Skeletal muscle is maintained and repaired by sub-laminar, Pax7-expressing satellite cells. However, recent mouse investigations have described a second myogenic progenitor population that resides within the myofiber interstitium and expresses the transcription factor Twist2. Twist2-expressing cells exclusively repair and maintain type IIx/b muscle fibers. Currently, it is unknown if Twist2-expressing cells are present in human skeletal muscle and if they function as myogenic progenitors. Here, we perform a combination of single-cell RNA sequencing analysis and immunofluorescence staining to demonstrate the identity and localization of Twist2-expressing cells in human skeletal muscle. Twist2-expressing cells were identified to be anatomically and transcriptionally comparable to fibro-adipogenic progenitors (FAPs) and lack expression of typical satellite cell markers such as Pax7. Comparative analysis revealed that human and mouse Twist2-expressing cells were highly transcriptionally analogous and resided within the same anatomical structures in vivo. Examination of young and aged skeletal muscle biopsy samples revealed that Twist2-positive cells are more prevalent in aged muscle and increase following 12-weeks of resistance exercise training (RET) in humans. However, the quantity of Twist2-positive cells was not correlated with indices of muscle mass or muscle fiber cross-sectional area (CSA) in young or older muscle, and their abundance was surprisingly, negatively correlated with CSA and myonuclear domain size following RET. Taken together, we have identified cells expressing Twist2 in human skeletal muscle which are responsive to aging and exercise. Further examination of their myogenic potential is warranted.
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Affiliation(s)
- Nick Gaulton
- Department of Applied Human Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Griffen Wakelin
- Department of Applied Human Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada.,Department of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Laura V Young
- Department of Applied Human Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Scott Wotherspoon
- Queen Elizabeth Hospital, Charlottetown, Prince Edward Island, Canada
| | - Michael Kamal
- Department of Kinesiology, Faculty of Science, McMaster University, Ontario, Hamilton, Canada
| | - Gianni Parise
- Department of Kinesiology, Faculty of Science, McMaster University, Ontario, Hamilton, Canada
| | - Joshua P Nederveen
- Department of Pediatrics, McMaster University Children's Hospital, Hamilton, Ontario, Canada
| | - Andy Holwerda
- Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Lex B Verdijk
- Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Luc J C van Loon
- Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Tim Snijders
- Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Adam P Johnston
- Department of Applied Human Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada.,Department of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada
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20
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Dong W, Chen W, Zou H, Shen Z, Yu D, Chen W, Jiang H, Yan X, Yu Z. Ginsenoside Rb1 Prevents Oxidative Stress-Induced Apoptosis and Mitochondrial Dysfunction in Muscle Stem Cells via NF- κB Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9159101. [PMID: 36466088 PMCID: PMC9715322 DOI: 10.1155/2022/9159101] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 07/22/2023]
Abstract
Sarcopenia, featured by the progressive loss of skeletal muscle function and mass, is associated with the impaired function of muscle stem cells (MuSCs) caused by increasing oxidative stress in senescent skeletal muscle tissue during aging. Intact function of MuSCs maintains the regenerative potential as well as the homeostasis of skeletal muscle tissues during aging. Ginsenoside Rb1, a natural compound from ginseng, exhibited the effects of antioxidation and against apoptosis. However, its effects of restoring MuSC function during aging and improving age-related sarcopenia remained unknown. In this study, we investigated the role of Rb1 in improving MuSC function and inhibiting apoptosis by reducing oxidative stress levels. We found that Rb1 inhibited the accumulation of reactive oxygen species (ROS) and protected the cells from oxidative stress to attenuate the H2O2-induced cytotoxicity. Rb1 also blocked oxidative stress-induced apoptosis by inhibiting the activation of caspase-3/9, which antagonized the decrease in mitochondrial content and the increase in mitochondrial abnormalities caused by oxidative stress via promoting the protein expression of genes involved in mitochondrial biogenesis. Mechanistically, it was proven that Rb1 exerted its antioxidant effects and avoided the apoptosis of myoblasts by targeting the core regulator of the nuclear factor-kappa B (NF-κB) signal pathway. Therefore, these findings suggest that Rb1 may have a beneficial role in the prevention and treatment of MuSC exhaustion-related diseases like sarcopenia.
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Affiliation(s)
- Wenxi Dong
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wenhao Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hongbo Zou
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Gastrointestinal Surgery, People's Hospital of Deyang City, Deyang, Sichuan, China
| | - Zile Shen
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Dingye Yu
- Department of General Surgery, Huadong Hospital, Fudan University, Shanghai, China
| | - Weizhe Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Haojie Jiang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xialin Yan
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
- Department of Colorectal Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhen Yu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
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21
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Bouredji Z, Argaw A, Frenette J. The inflammatory response, a mixed blessing for muscle homeostasis and plasticity. Front Physiol 2022; 13:1032450. [PMID: 36505042 PMCID: PMC9726740 DOI: 10.3389/fphys.2022.1032450] [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: 08/30/2022] [Accepted: 11/10/2022] [Indexed: 11/24/2022] Open
Abstract
Skeletal muscle makes up almost half the body weight of heathy individuals and is involved in several vital functions, including breathing, thermogenesis, metabolism, and locomotion. Skeletal muscle exhibits enormous plasticity with its capacity to adapt to stimuli such as changes in mechanical loading, nutritional interventions, or environmental factors (oxidative stress, inflammation, and endocrine changes). Satellite cells and timely recruited inflammatory cells are key actors in muscle homeostasis, injury, and repair processes. Conversely, uncontrolled recruitment of inflammatory cells or chronic inflammatory processes leads to muscle atrophy, fibrosis and, ultimately, impairment of muscle function. Muscle atrophy and loss of function are reported to occur either in physiological situations such as aging, cast immobilization, and prolonged bed rest, as well as in many pathological situations, including cancers, muscular dystrophies, and several other chronic illnesses. In this review, we highlight recent discoveries with respect to the molecular mechanisms leading to muscle atrophy caused by modified mechanical loading, aging, and diseases. We also summarize current perspectives suggesting that the inflammatory process in muscle homeostasis and repair is a double-edged sword. Lastly, we review recent therapeutic approaches for treating muscle wasting disorders, with a focus on the RANK/RANKL/OPG pathway and its involvement in muscle inflammation, protection and regeneration processes.
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Affiliation(s)
- Zineb Bouredji
- Centre Hospitalier Universitaire de Québec, Centre de Recherche du Centre Hospitalier de l’Université Laval (CRCHUQ-CHUL), Axe Neurosciences, Université Laval, Quebec City, QC, Canada
| | - Anteneh Argaw
- Centre Hospitalier Universitaire de Québec, Centre de Recherche du Centre Hospitalier de l’Université Laval (CRCHUQ-CHUL), Axe Neurosciences, Université Laval, Quebec City, QC, Canada
| | - Jérôme Frenette
- Centre Hospitalier Universitaire de Québec, Centre de Recherche du Centre Hospitalier de l’Université Laval (CRCHUQ-CHUL), Axe Neurosciences, Université Laval, Quebec City, QC, Canada,Département de Réadaptation, Faculté de Médecine, Université Laval, Quebec City, QC, Canada,*Correspondence: Jérôme Frenette,
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22
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Huang Y, Gong Y, Liu Y, Lu J. Global trends and hot topics in electrical stimulation of skeletal muscle research over the past decade: A bibliometric analysis. Front Neurol 2022; 13:991099. [PMID: 36277916 PMCID: PMC9581161 DOI: 10.3389/fneur.2022.991099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/13/2022] [Indexed: 11/25/2022] Open
Abstract
Background Over the past decade, numerous advances have been made in the research on electrical stimulation of skeletal muscle. However, the developing status and future direction of this field remain unclear. This study aims to visualize the evolution and summarize global research hot topics and trends based on quantitative and qualitative evidence from bibliometrics. Methods Literature search was based on the Web of Science Core Collection (WoSCC) database from 2011 to 2021. CiteSpace and VOSviewer, typical bibliometric tools, were used to perform analysis and visualization. Results A total of 3,059 documents were identified. The number of literature is on the rise in general. Worldwide, researchers come primarily from North America and Europe, represented by the USA, France, Switzerland, and Canada. The Udice French Research Universities is the most published affiliation. Millet GY and Maffiuletti NA are the most prolific and the most co-cited authors, respectively. Plos One is the most popular journal, and the Journal of Applied Physiology is the top co-cited journal. The main keywords are muscle fatigue, neuromuscular electrical stimulation, spinal cord injury, tissue engineering, and atrophy. Moreover, this study systematically described the hotspots in this field. Conclusion As the first bibliometric analysis of electrical stimulation of skeletal muscle research over the past decade, this study can help scholars recognize hot topics and trends and provide a reference for further exploration in this field.
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23
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Den Hartog L, Asakura A. Implications of notch signaling in duchenne muscular dystrophy. Front Physiol 2022; 13:984373. [PMID: 36237531 PMCID: PMC9553129 DOI: 10.3389/fphys.2022.984373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
This review focuses upon the implications of the Notch signaling pathway in muscular dystrophies, particularly Duchenne muscular dystrophy (DMD): a pervasive and catastrophic condition concerned with skeletal muscle degeneration. Prior work has defined the pathogenesis of DMD, and several therapeutic approaches have been undertaken in order to regenerate skeletal muscle tissue and ameliorate the phenotype. There is presently no cure for DMD, but a promising avenue for novel therapies is inducing muscle regeneration via satellite cells (muscle stem cells). One specific target using this approach is the Notch signaling pathway. The canonical Notch signaling pathway has been well-characterized and it ultimately governs cell fate decision, cell proliferation, and induction of differentiation. Additionally, inhibition of the Notch signaling pathway has been directly implicated in the deficits seen with muscular dystrophies. Here, we explore the connection between the Notch signaling pathway and DMD, as well as how Notch signaling may be targeted to improve the muscle degeneration seen in muscular dystrophies.
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24
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Age-Associated Loss in Renal Nestin-Positive Progenitor Cells. Int J Mol Sci 2022; 23:ijms231911015. [PMID: 36232326 PMCID: PMC9569966 DOI: 10.3390/ijms231911015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/13/2022] [Accepted: 09/17/2022] [Indexed: 12/03/2022] Open
Abstract
The decrease in the number of resident progenitor cells with age was shown for several organs. Such a loss is associated with a decline in regenerative capacity and a greater vulnerability of organs to injury. However, experiments evaluating the number of progenitor cells in the kidney during aging have not been performed until recently. Our study tried to address the change in the number of renal progenitor cells with age. Experiments were carried out on young and old transgenic nestin-green fluorescent protein (GFP) reporter mice, since nestin is suggested to be one of the markers of progenitor cells. We found that nestin+ cells in kidney tissue were located in the putative niches of resident renal progenitor cells. Evaluation of the amount of nestin+ cells in the kidneys of different ages revealed a multifold decrease in the levels of nestin+ cells in old mice. In vitro experiments on primary cultures of renal tubular cells showed that all cells including nestin+ cells from old mice had a lower proliferation rate. Moreover, the resistance to damaging factors was reduced in cells obtained from old mice. Our data indicate the loss of resident progenitor cells in kidneys and a decrease in renal cells proliferative capacity with aging.
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25
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Leuchtmann AB, Furrer R, Steurer SA, Schneider-Heieck K, Karrer-Cardel B, Sagot Y, Handschin C. Interleukin-6 potentiates endurance training adaptation and improves functional capacity in old mice. J Cachexia Sarcopenia Muscle 2022; 13:1164-1176. [PMID: 35191221 PMCID: PMC8978011 DOI: 10.1002/jcsm.12949] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/18/2022] [Accepted: 01/23/2022] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Interventions to preserve functional capacities at advanced age are becoming increasingly important. So far, exercise provides the only means to counteract age-related decrements in physical performance and muscle function. Unfortunately, the effectiveness of exercise interventions in elderly populations is hampered by reduced acceptance and compliance as well as disuse complications. We therefore studied whether application of interleukin-6 (IL-6), a pleiotropic myokine that is induced by skeletal muscle activity and exerts broad systemic effects in response to exercise, affects physical performance and muscle function alone or in combination with training in aged mice. METHODS Sedentary old male mice (Sed+Saline, n = 15) were compared with animals that received recombinant IL-6 (rIL-6) in an exercise-mimicking pulsatile manner (Sed+IL-6, n = 16), were trained with a moderate-intensity, low-volume endurance exercise regimen (Ex+Saline, n = 13), or were exposed to a combination of these two interventions (Ex+IL-6, n = 16) for 12 weeks. Before and at the end of the intervention, mice underwent a battery of tests to quantify endurance performance, muscle contractility in situ, motor coordination, and gait and metabolic parameters. RESULTS Mice exposed to enhanced levels of IL-6 during endurance exercise bouts showed superior improvements in endurance performance (33% more work and 12% greater peak power compared with baseline), fatigue resistance in situ (P = 0.0014 vs. Sed+Saline; P = 0.0199 vs. Sed+IL-6; and P = 0.0342 vs. Ex+Saline), motor coordination (rotarod performance, P = 0.0428), and gait (gait speed, P = 0.0053) following training. Pulsatile rIL-6 treatment in sedentary mice had only marginal effects on glucose tolerance and some gait parameters. No increase in adverse events or mortality related to rIL-6 treatment was observed. CONCLUSIONS Administration of rIL-6 paired with treadmill running bouts potentiates the adaptive response to a moderate-intensity low-volume endurance exercise regimen in old mice, while being safe and well tolerated.
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Affiliation(s)
| | | | | | | | | | - Yves Sagot
- Sonnet Biotherapeutics CH SA, Geneva, Switzerland
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26
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Chen K, Rao Z, Dong S, Chen Y, Wang X, Luo Y, Gong F, Li X. Roles of the fibroblast growth factor signal transduction system in tissue injury repair. BURNS & TRAUMA 2022; 10:tkac005. [PMID: 35350443 PMCID: PMC8946634 DOI: 10.1093/burnst/tkac005] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 12/13/2021] [Indexed: 12/13/2022]
Abstract
Following injury, tissue autonomously initiates a complex repair process, resulting in either partial recovery or regeneration of tissue architecture and function in most organisms. Both the repair and regeneration processes are highly coordinated by a hierarchy of interplay among signal transduction pathways initiated by different growth factors, cytokines and other signaling molecules under normal conditions. However, under chronic traumatic or pathological conditions, the reparative or regenerative process of most tissues in different organs can lose control to different extents, leading to random, incomplete or even flawed cell and tissue reconstitution and thus often partial restoration of the original structure and function, accompanied by the development of fibrosis, scarring or even pathogenesis that could cause organ failure and death of the organism. Ample evidence suggests that the various combinatorial fibroblast growth factor (FGF) and receptor signal transduction systems play prominent roles in injury repair and the remodeling of adult tissues in addition to embryonic development and regulation of metabolic homeostasis. In this review, we attempt to provide a brief update on our current understanding of the roles, the underlying mechanisms and clinical application of FGFs in tissue injury repair.
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Affiliation(s)
| | | | - Siyang Dong
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
- Department of breast surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yajing Chen
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Xulan Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yongde Luo
- Correspondence. Xiaokun Li, ; Fanghua Gong, ; Yongde Luo,
| | - Fanghua Gong
- Correspondence. Xiaokun Li, ; Fanghua Gong, ; Yongde Luo,
| | - Xiaokun Li
- Correspondence. Xiaokun Li, ; Fanghua Gong, ; Yongde Luo,
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27
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Pyroptosis and Sarcopenia: Frontier Perspective of Disease Mechanism. Cells 2022; 11:cells11071078. [PMID: 35406642 PMCID: PMC8998102 DOI: 10.3390/cells11071078] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/07/2022] [Accepted: 03/18/2022] [Indexed: 01/27/2023] Open
Abstract
With global ageing, sarcopenia, as an age-related disease, has brought a heavy burden to individuals and society. Increasing attention has been given to further exploring the morbidity mechanism and intervention measures for sarcopenia. Pyroptosis, also known as cellular inflammatory necrosis, is a kind of regulated cell death that plays a role in the ageing progress at the cellular level. It is closely related to age-related diseases such as cardiovascular diseases, Alzheimer’s disease, osteoarthritis, and sarcopenia. In the process of ageing, aggravated oxidative stress and poor skeletal muscle perfusion in ageing muscle tissues can activate the nod-like receptor (NLRP) family to trigger pyroptosis. Chronic inflammation is a representative characteristic of ageing. The levels of inflammatory factors such as TNF-α may activate the signaling pathways of pyroptosis by the NF-κB-GSDMD axis, which remains to be further studied. Autophagy is a protective mechanism in maintaining the integrity of intracellular organelles and the survival of cells in adverse conditions. The autophagy of skeletal muscle cells can inhibit the activation of the pyroptosis pathway to some extent. A profound understanding of the mechanism of pyroptosis in sarcopenia may help to identify new therapeutic targets in the future. This review article focuses on the role of pyroptosis in the development and progression of sarcopenia.
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28
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Lavin KM, Coen PM, Baptista LC, Bell MB, Drummer D, Harper SA, Lixandrão ME, McAdam JS, O’Bryan SM, Ramos S, Roberts LM, Vega RB, Goodpaster BH, Bamman MM, Buford TW. State of Knowledge on Molecular Adaptations to Exercise in Humans: Historical Perspectives and Future Directions. Compr Physiol 2022; 12:3193-3279. [PMID: 35578962 PMCID: PMC9186317 DOI: 10.1002/cphy.c200033] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
For centuries, regular exercise has been acknowledged as a potent stimulus to promote, maintain, and restore healthy functioning of nearly every physiological system of the human body. With advancing understanding of the complexity of human physiology, continually evolving methodological possibilities, and an increasingly dire public health situation, the study of exercise as a preventative or therapeutic treatment has never been more interdisciplinary, or more impactful. During the early stages of the NIH Common Fund Molecular Transducers of Physical Activity Consortium (MoTrPAC) Initiative, the field is well-positioned to build substantially upon the existing understanding of the mechanisms underlying benefits associated with exercise. Thus, we present a comprehensive body of the knowledge detailing the current literature basis surrounding the molecular adaptations to exercise in humans to provide a view of the state of the field at this critical juncture, as well as a resource for scientists bringing external expertise to the field of exercise physiology. In reviewing current literature related to molecular and cellular processes underlying exercise-induced benefits and adaptations, we also draw attention to existing knowledge gaps warranting continued research effort. © 2021 American Physiological Society. Compr Physiol 12:3193-3279, 2022.
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Affiliation(s)
- Kaleen M. Lavin
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Center for Human Health, Resilience, and Performance, Institute for Human and Machine Cognition, Pensacola, Florida, USA
| | - Paul M. Coen
- Translational Research Institute for Metabolism and Diabetes, Advent Health, Orlando, Florida, USA
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Liliana C. Baptista
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Margaret B. Bell
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Devin Drummer
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Sara A. Harper
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Manoel E. Lixandrão
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jeremy S. McAdam
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Samia M. O’Bryan
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Sofhia Ramos
- Translational Research Institute for Metabolism and Diabetes, Advent Health, Orlando, Florida, USA
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Lisa M. Roberts
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Rick B. Vega
- Translational Research Institute for Metabolism and Diabetes, Advent Health, Orlando, Florida, USA
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Bret H. Goodpaster
- Translational Research Institute for Metabolism and Diabetes, Advent Health, Orlando, Florida, USA
- Sanford Burnham Prebys Medical Discovery Institute, Orlando, Florida, USA
| | - Marcas M. Bamman
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Center for Human Health, Resilience, and Performance, Institute for Human and Machine Cognition, Pensacola, Florida, USA
| | - Thomas W. Buford
- Center for Exercise Medicine, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA
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Anderson JE. Key concepts in muscle regeneration: muscle "cellular ecology" integrates a gestalt of cellular cross-talk, motility, and activity to remodel structure and restore function. Eur J Appl Physiol 2022; 122:273-300. [PMID: 34928395 PMCID: PMC8685813 DOI: 10.1007/s00421-021-04865-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/10/2021] [Indexed: 12/21/2022]
Abstract
This review identifies some key concepts of muscle regeneration, viewed from perspectives of classical and modern research. Early insights noted the pattern and sequence of regeneration across species was similar, regardless of the type of injury, and differed from epimorphic limb regeneration. While potential benefits of exercise for tissue repair was debated, regeneration was not presumed to deliver functional restoration, especially after ischemia-reperfusion injury; muscle could develop fibrosis and ectopic bone and fat. Standard protocols and tools were identified as necessary for tracking injury and outcomes. Current concepts vastly extend early insights. Myogenic regeneration occurs within the environment of muscle tissue. Intercellular cross-talk generates an interactive system of cellular networks that with the extracellular matrix and local, regional, and systemic influences, forms the larger gestalt of the satellite cell niche. Regenerative potential and adaptive plasticity are overlain by epigenetically regionalized responsiveness and contributions by myogenic, endothelial, and fibroadipogenic progenitors and inflammatory and metabolic processes. Muscle architecture is a living portrait of functional regulatory hierarchies, while cellular dynamics, physical activity, and muscle-tendon-bone biomechanics arbitrate regeneration. The scope of ongoing research-from molecules and exosomes to morphology and physiology-reveals compelling new concepts in muscle regeneration that will guide future discoveries for use in application to fitness, rehabilitation, and disease prevention and treatment.
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Affiliation(s)
- Judy E Anderson
- Department of Biological Sciences, Faculty of Science, University of Manitoba, 50 Sifton Road, Winnipeg, MB, R3T 2N2, Canada.
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30
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Biogenesis and Function of Extracellular Vesicles in Pathophysiological Processes Skeletal Muscle Atrophy. Biochem Pharmacol 2022; 198:114954. [DOI: 10.1016/j.bcp.2022.114954] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/08/2022] [Accepted: 02/08/2022] [Indexed: 12/13/2022]
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31
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Moreira-Pais A, Ferreira R, Oliveira PA, Duarte JA. A neuromuscular perspective of sarcopenia pathogenesis: deciphering the signaling pathways involved. GeroScience 2022; 44:1199-1213. [PMID: 34981273 DOI: 10.1007/s11357-021-00510-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/26/2021] [Indexed: 12/18/2022] Open
Abstract
The escalation of life expectancy is accompanied by an increase in the prevalence of age-related conditions, such as sarcopenia. Sarcopenia, a muscle condition defined by low muscle strength, muscle quality or quantity, and physical performance, has a high prevalence among the elderly and is associated to increased mortality. The neuromuscular system has been emerging as a key contributor to sarcopenia pathogenesis. Indeed, the age-related degeneration of the neuromuscular junction (NMJ) function and structure may contribute to the loss of muscle strength and ultimately to the loss of muscle mass that characterize sarcopenia. The present mini-review discusses important signaling pathways involved in the function and maintenance of the NMJ, giving emphasis to the ones that might contribute to sarcopenia pathogenesis. Some conceivable biomarkers, such as C-terminal agrin fragment (CAF) and brain-derived neurotrophic factor (BDNF), and therapeutic targets, namely acetylcholine and calcitonin gene-related peptide (CGRP), can be retrieved, making way to future studies to validate their clinical use.
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Affiliation(s)
- Alexandra Moreira-Pais
- CIAFEL, Faculty of Sport, University of Porto, Dr. Plácido da Costa 91, 4200-450, Porto, Portugal. .,LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal. .,Centre for Research and Technology of Agro Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-Os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal.
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Paula A Oliveira
- Centre for Research and Technology of Agro Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-Os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal
| | - José A Duarte
- CIAFEL, Faculty of Sport, University of Porto, Dr. Plácido da Costa 91, 4200-450, Porto, Portugal.,TOXRUN - Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, Gandra, Portugal
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32
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McMillin SL, Minchew EC, Lowe DA, Spangenburg EE. Skeletal muscle wasting: the estrogen side of sexual dimorphism. Am J Physiol Cell Physiol 2022; 322:C24-C37. [PMID: 34788147 PMCID: PMC8721895 DOI: 10.1152/ajpcell.00333.2021] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The importance of defining sex differences across various biological and physiological mechanisms is more pervasive now than it has been over the past 15-20 years. As the muscle biology field pushes to identify small molecules and interventions to prevent, attenuate, or even reverse muscle wasting, we must consider the effect of sex as a biological variable. It should not be assumed that a therapeutic will affect males and females with equal efficacy or equivalent target affinities under conditions where muscle wasting is observed. With that said, it is not surprising to find that we have an unclear or even a poor understanding of the effects of sex or sex hormones on muscle wasting conditions. Although recent investigations are beginning to establish experimental approaches that will allow investigators to assess the impact of sex-specific hormones on muscle wasting, the field still needs rigorous scientific tools that will allow the community to address critical hypotheses centered around sex hormones. The focus of this review is on female sex hormones, specifically estrogens, and the roles that these hormones and their receptors play in skeletal muscle wasting conditions. With the overall review goal of assembling the current knowledge in the area of sexual dimorphism driven by estrogens with an effort to provide insights to interested physiologists on necessary considerations when trying to assess models for potential sex differences in cellular and molecular mechanisms of muscle wasting.
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Affiliation(s)
- Shawna L. McMillin
- 1Division of Rehabilitation Science, Department of Rehabilitation Medicine, Medical School, University of Minnesota, Minneapolis, Minnesota,2Division of Physical Therapy, Department of Rehabilitation Medicine, Medical School, University of Minnesota, Minneapolis, Minnesota
| | - Everett C. Minchew
- 3Department of Physiology, Brody School of Medicine, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
| | - Dawn A. Lowe
- 1Division of Rehabilitation Science, Department of Rehabilitation Medicine, Medical School, University of Minnesota, Minneapolis, Minnesota,2Division of Physical Therapy, Department of Rehabilitation Medicine, Medical School, University of Minnesota, Minneapolis, Minnesota
| | - Espen E. Spangenburg
- 3Department of Physiology, Brody School of Medicine, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, North Carolina
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Pang H, Zhou Y, Wang J, Wu H, Liu X, Gao F, Xiao Z. Berberine Influences the Survival of Fat Grafting by Inhibiting Autophagy and Apoptosis of Human Adipose Derived Mesenchymal Stem Cells. Drug Des Devel Ther 2021; 15:4795-4809. [PMID: 34876804 PMCID: PMC8643163 DOI: 10.2147/dddt.s337215] [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: 09/08/2021] [Accepted: 11/06/2021] [Indexed: 12/14/2022] Open
Abstract
Objective Human adipose-derived mesenchymal stem cells (ADSCs) have the potential to be applied to solid organ treatments. However, tissue regeneration is limited by the death of transplanted cells. Ischemia is the main cause of the poor outcome. This study aimed to investigate the effect of berberine (BBR) on ADSCs after fat grafting. Methods The antioxidant BBR on apoptosis and autophagy of ADSCs in vitro ischemia model was induced by hypoxia and serum deprivation (HY/SD). The autophagy promoter rapamycin and autophagy inhibitor 3-MA were incubated separately to investigate the crosstalk between autophagy and apoptosis. Pathway inhibitors further verified whether the autophagy and apoptosis were regulated by AMPK/mTor signaling pathway. Fat survival, fibrosis, level of inflammatory cell infiltration, and the effect of angiogenesis after BBR treatment were observed in vivo. Results BBR could reduce ROS production and reverse the decreasing cell survival rate. HY/SD would induce apoptosis and autophagy in ADSCs, and BBR could alleviate these processes. After interfering with the level of autophagy, we also proved that apoptosis was regulated by autophagy and changed accordingly. The results also indicated that BBR could protect against autophagy and apoptosis of ADSCs through AMPK/mTor pathway. The treated human-derived adipose tissue was transplanted into BALB/c nude mice, and with the intervention of BBR, the fat grafting had a higher survival rate, lower inflammatory cell infiltration and fibrosis level. Conclusion Our present study revealed that BBR was a promising anti-autophagy and apoptosis agent for improving the survival rate of ADSCs during cell transplantation.
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Affiliation(s)
- Hao Pang
- Department of Plastic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, People's Republic of China
| | - Yongting Zhou
- Department of Plastic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, People's Republic of China
| | - Jie Wang
- Department of Plastic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, People's Republic of China
| | - Hao Wu
- Department of Plastic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, People's Republic of China
| | - Xueyi Liu
- Department of Plastic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, People's Republic of China
| | - Feng Gao
- Department of Plastic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, People's Republic of China
| | - Zhibo Xiao
- Department of Plastic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, People's Republic of China
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Gil S, Kirwan JP, Murai IH, Dantas WS, Merege-Filho CAA, Ghosh S, Shinjo SK, Pereira RMR, Teodoro WR, Felau SM, Benatti FB, de Sá-Pinto AL, Lima F, de Cleva R, Santo MA, Gualano B, Roschel H. A randomized clinical trial on the effects of exercise on muscle remodelling following bariatric surgery. J Cachexia Sarcopenia Muscle 2021; 12:1440-1455. [PMID: 34666419 PMCID: PMC8718087 DOI: 10.1002/jcsm.12815] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/27/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Muscle atrophy and strength loss are common adverse outcomes following bariatric surgery. This randomized, controlled trial investigated the effects of exercise training on bariatric surgery-induced loss of muscle mass and function. Additionally, we investigated the effects of the intervention on molecular and histological mediators of muscle remodelling. METHODS Eighty women with obesity were randomly assigned to a Roux-en-Y gastric bypass (RYGB: n = 40, age = 42 ± 8 years) or RYGB plus exercise training group (RYGB + ET: n = 40, age = 38 ± 7 years). Clinical and laboratory parameters were assessed at baseline, and 3 (POST3) and 9 months (POST9) after surgery. The 6 month, three-times-a-week, exercise intervention (resistance plus aerobic exercise) was initiated 3 months post-surgery (for RYGB + ET). A healthy, lean, age-matched control group was recruited to provide reference values for selected variables. RESULTS Surgery resulted in a similar (P = 0.66) reduction in lower-limb muscle strength in RYGB and RYGB+ET (-26% vs. -31%), which was rescued to baseline values in RYGB + ET (P = 0.21 vs. baseline) but not in RYGB (P < 0.01 vs. baseline). Patients in RYGB+ET had greater absolute (214 vs. 120 kg, P < 0.01) and relative (2.4 vs. 1.4 kg/body mass, P < 0.01) muscle strength compared with RYGB alone at POST9. Exercise resulted in better performance in timed-up-and-go (6.3 vs. 7.1 s, P = 0.05) and timed-stand-test (18 vs. 14 repetitions, P < 0.01) compared with RYGB. Fat-free mass was lower (POST9-PRE) after RYBG than RYGB + ET (total: -7.9 vs. -4.9 kg, P < 0.01; lower-limb: -3.8 vs. -2.7 kg, P = 0.02). Surgery reduced Types I (~ - 21%; P = 0.99 between-group comparison) and II fibre cross-sectional areas (~ - 27%; P = 0.88 between-group comparison), which were rescued to baseline values in RYGB+ET (P > 0.05 vs. baseline) but not RYGB (P > 0.01 vs. baseline). RYGB + ET showed greater Type I (5187 vs. 3898 μm2 , P < 0.01) and Type II (5165 vs. 3565 μm2 , P < 0.01) fCSA than RYGB at POST9. RYGB + ET also resulted in increased capillarization (P < 0.01) and satellite cell content (P < 0.01) than RYGB at POST9. Gene-set normalized enrichment scores for the muscle transcriptome revealed that the ubiquitin-mediated proteolysis pathway was suppressed in RYGB + ET at POST9 vs. PRE (NES: -1.7; P < 0.01), but not in RYGB. Atrogin-1 gene expression was lower in RYGB + ET vs. RYGB at POST9 (0.18 vs. 0.71-fold change, P < 0.01). From both genotypic and phenotypic perspectives, the muscle of exercised patients resembled that of healthy lean individuals. CONCLUSIONS This study provides compelling evidence-from gene to function-that strongly supports the incorporation of exercise into the recovery algorithm for bariatric patients so as to counteract the post-surgical loss of muscle mass and function.
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Affiliation(s)
- Saulo Gil
- Applied Physiology & Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, Brazil.,Laboratory of Assessment and Conditioning in Rheumatology, Universidade de São Paulo, São Paulo, SP, Brazil.,Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - John P Kirwan
- Integrated Physiology and Molecular Medicine Laboratory, Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
| | - Igor H Murai
- Applied Physiology & Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, Brazil.,Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Wagner S Dantas
- Integrated Physiology and Molecular Medicine Laboratory, Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
| | - Carlos Alberto Abujabra Merege-Filho
- Applied Physiology & Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, Brazil.,Laboratory of Assessment and Conditioning in Rheumatology, Universidade de São Paulo, São Paulo, SP, Brazil.,Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Sujoy Ghosh
- Laboratory of Computational Biology, Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA.,Centre for Computational Biology, Duke-NUS Medical School, Singapore
| | - Samuel K Shinjo
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Rosa M R Pereira
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Walcy R Teodoro
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Sheylla M Felau
- Applied Physiology & Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Fabiana B Benatti
- Applied Physiology & Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, Brazil.,School of Applied Sciences, Universidade Estadual de Campinas, São Paulo, Brazil
| | - Ana L de Sá-Pinto
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Fernanda Lima
- Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Roberto de Cleva
- Gastroenterology Department, Digestive Surgery Division Department of Digestive Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Marco Aurélio Santo
- Gastroenterology Department, Digestive Surgery Division Department of Digestive Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Bruno Gualano
- Applied Physiology & Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, Brazil.,Laboratory of Assessment and Conditioning in Rheumatology, Universidade de São Paulo, São Paulo, SP, Brazil.,Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Hamilton Roschel
- Applied Physiology & Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, Brazil.,Laboratory of Assessment and Conditioning in Rheumatology, Universidade de São Paulo, São Paulo, SP, Brazil.,Rheumatology Division, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
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Liu X, Zu E, Chang X, Ma X, Wang Z, Song X, Li X, Yu Q, Kamei KI, Hayashi T, Mizuno K, Hattori S, Fujisaki H, Ikejima T, Wang DO. Bi-phasic effect of gelatin in myogenesis and skeletal muscle regeneration. Dis Model Mech 2021; 14:273524. [PMID: 34821368 PMCID: PMC8713995 DOI: 10.1242/dmm.049290] [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: 09/07/2021] [Accepted: 10/25/2021] [Indexed: 11/20/2022] Open
Abstract
Skeletal muscle regeneration requires extracellular matrix (ECM) remodeling, including an acute and transient breakdown of collagen that produces gelatin. Although the physiological function of this process is unclear, it has inspired the application of gelatin to injured skeletal muscle for a potential pro-regenerative effect. Here, we investigated a bi-phasic effect of gelatin in skeletal muscle regeneration, mediated by the hormetic effects of reactive oxygen species (ROS). Low-dose gelatin stimulated ROS production from NADPH oxidase 2 (NOX2) and simultaneously upregulated the antioxidant system for cellular defense, reminiscent of the adaptive compensatory process during mild stress. This response triggered the release of the myokine IL-6, which stimulates myogenesis and facilitates muscle regeneration. By contrast, high-dose gelatin stimulated ROS overproduction from NOX2 and the mitochondrial chain complex, and ROS accumulation by suppressing the antioxidant system, triggering the release of TNFα, which inhibits myogenesis and regeneration. Our results have revealed a bi-phasic role of gelatin in regulating skeletal muscle repair mediated by intracellular ROS, the antioxidant system and cytokine (IL-6 and TNFα) signaling. Summary: Application of high- and low-dose gelatin to skeletal muscle revealed a bi-phasic role of gelatin in regulating skeletal muscle repair, which has translational implications for regenerative medicine.
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Affiliation(s)
- Xiaoling Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Er Zu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xinyu Chang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xiaowei Ma
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Ziqi Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xintong Song
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xiangru Li
- School of Life Science and Biopharmaceutic, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qing Yu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ken-Ichiro Kamei
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China.,Institute for Integrated Cell-Material Science (iCeMS), Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-850, Japan
| | - Toshihiko Hayashi
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China.,Department of Chemistry and Life Science, School of Advance Engineering, Kogakuin University, 2665-1, Nakanomachi, Hachioji, Tokyo 192-0015, Japan.,Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Kazunori Mizuno
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Hitomi Fujisaki
- Nippi Research Institute of Biomatrix, Toride, Ibaraki 302-0017, Japan
| | - Takashi Ikejima
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China.,Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research and Development, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, China
| | - Dan Ohtan Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, China.,Center for Biosystems Dynamics Research (BDR), RIKEN, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
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Lokeshwar SD, Press BH, Nie J, Klaassen Z, Kenney PA, Leapman MS. Cachexia and bladder cancer: clinical impact and management. Curr Opin Support Palliat Care 2021; 15:260-265. [PMID: 34698663 DOI: 10.1097/spc.0000000000000580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE OF REVIEW The purpose of this review is to describe the causes, management, and clinical outcomes associated with cachexia and related components including sarcopenia, among patients with bladder cancer (BCa). RECENT FINDINGS Cachexia in patients with BCa is associated with poorer outcomes after radical cystectomy (RC), radiation, and chemotherapy. Nutritional supplements and novel pharmaceutical agents including magnolol, flucoidan and Anamorelin are currently undergoing investigation for their potential use in BCa patients with cachexia. SUMMARY Cachexia is a hypercatabolic state thought to be caused by an immune-regulated release of cytokines and disruptions of molecular pathways within the tumor microenvironment and systemically. Nutritional deficiencies in patients with BCa also contribute to cachexia and sarcopenia. Patients with BCa -related cachexia and sarcopenia experience worse survival and therapeutic outcomes after RC, chemotherapy, and radiation therapy. Patients with cachexia also experience more postoperative complications after RC. The management of cachexia in patients with BCa remains challenging and requires timely identification, and multidisciplinary management including nutritional supplementation, physical therapy, palliative care, and pharmacological agents. Clinical trials and human studies are still required to determine which pharmacological agents are optimal for BCa cachexia.
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Affiliation(s)
- Soum D Lokeshwar
- Department of Urology, Yale University School of Medicine, New Haven, Connecticut
| | - Benjamin H Press
- Department of Urology, Yale University School of Medicine, New Haven, Connecticut
| | - James Nie
- Department of Urology, Yale University School of Medicine, New Haven, Connecticut
| | - Zachary Klaassen
- Department of Urology, Medical College of Georgia, Augusta, Georgia, USA
| | - Patrick A Kenney
- Department of Urology, Yale University School of Medicine, New Haven, Connecticut
| | - Michael S Leapman
- Department of Urology, Yale University School of Medicine, New Haven, Connecticut
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Wehrstein M, Schöffel A, Weiberg N, Gwechenberger T, Betz T, Rittweg M, Parstorfer M, Pilz M, Friedmann-Bette B. Eccentric Overload during Resistance Exercise: A Stimulus for Enhanced Satellite Cell Activation. Med Sci Sports Exerc 2021; 54:388-398. [PMID: 34690286 DOI: 10.1249/mss.0000000000002818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Satellite cells (SC) are of importance for muscular adaptation to various forms of exercise. A single bout of high-force eccentric exercise has been shown to induce SC activation and, for electrically stimulated exercise, SC differentiation. PURPOSE This study aimed to assess if one bout of concentric/eccentric exercise with damaging eccentric overload (CON/ECC+) provides a sufficient stimulus to induce SC activation, proliferation and differentiation. METHODS Biopsies from the vastus lateralis muscle of recreationally active males were obtained in the rested condition and again from the contralateral leg seven days after exhaustive concentric/eccentric (CON/ECC, n = 15) or CON/ECC+ (n = 15) leg extension exercise and in a non-exercising control group (CG, n = 10). Total SC number (Pax7+), activated (Pax7+/MyoD+), and differentiating (myogenin+) SCs, fiber type distribution, and myofibers expressing neonatal myosin heavy chain (MHCneo) were determined immunohistochemically. Creatine kinase (CK) and myoglobin were measured in venous blood. Isokinetic strength tests were repeatedly conducted. RESULTS Significant increases in CK and myoglobin (p = 0.001) indicated myofiber damage while maximal strength was not impaired. Only after CON/ECC+, SC content (p = 0.019) and SC related to type II fibers (p = 0.011) were significantly increased. A significant increase in the proportion of activated SCs occurred after CON/ECC+ only (p = 0.003), the increase being significantly (p < 0.05) different from the changes after CON/ECC and in CG. The number of differentiating SC and MHCneo remained unchanged. CONCLUSION Eccentric overload during leg extension exercise induced significant SC activation, increases in SC content and in SC number related to type II myofibers. However, there were no signs of increased SC differentiation or formation of new myofibers.
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Affiliation(s)
- Michaela Wehrstein
- Department of Sports Medicine, Medical Clinic, University Hospital Heidelberg, Germany Department of Cardiology, Angiology and Pneumonology, Medical Clinic, University Hospital Heidelberg, Germany Olympic Training Center Heidelberg, Germany Institute of Medical Biometry and Informatics, University of Heidelberg, Germany
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Nederveen JP, Betz MW, Snijders T, Parise G. The Importance of Muscle Capillarization for Optimizing Satellite Cell Plasticity. Exerc Sport Sci Rev 2021; 49:284-290. [PMID: 34547761 DOI: 10.1249/jes.0000000000000270] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Satellite cells are essential for skeletal muscle regeneration, repair, and adaptation. The activity of satellite cells is influenced by their interactions with muscle-resident endothelial cells. We postulate that the microvascular network between muscle fibers plays a critical role in satellite cell function. Exercise-induced angiogenesis can mitigate the decline in satellite cell function with age.
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Affiliation(s)
- Joshua P Nederveen
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Centre, Hamilton, ON, Canada
| | - Milan W Betz
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Tim Snijders
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Gianni Parise
- Department of Kinesiology, Faculty of Sciences, McMaster University, Hamilton, ON, Canada
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Cherry C, Maestas DR, Han J, Andorko JI, Cahan P, Fertig EJ, Garmire LX, Elisseeff JH. Computational reconstruction of the signalling networks surrounding implanted biomaterials from single-cell transcriptomics. Nat Biomed Eng 2021; 5:1228-1238. [PMID: 34341534 PMCID: PMC9894531 DOI: 10.1038/s41551-021-00770-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 06/23/2021] [Indexed: 02/07/2023]
Abstract
The understanding of the foreign-body responses to implanted biomaterials would benefit from the reconstruction of intracellular and intercellular signalling networks in the microenvironment surrounding the implant. Here, by leveraging single-cell RNA-sequencing data from 42,156 cells collected from the site of implantation of either polycaprolactone or an extracellular-matrix-derived scaffold in a mouse model of volumetric muscle loss, we report a computational analysis of intercellular signalling networks reconstructed from predictions of transcription-factor activation. We found that intercellular signalling networks can be clustered into modules associated with specific cell subsets, and that biomaterial-specific responses can be characterized by interactions between signalling modules for immune, fibroblast and tissue-specific cells. In a Il17ra-/- mouse model, we validated that predicted interleukin-17-linked transcriptional targets led to concomitant changes in gene expression. Moreover, we identified cell subsets that had not been implicated in the responses to implanted biomaterials. Single-cell atlases of the cellular responses to implanted biomaterials will facilitate the design of implantable biomaterials and the understanding of the ensuing cellular responses.
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Affiliation(s)
- Christopher Cherry
- Translational Tissue Engineering Center, Wilmer Eye Institute and the Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD
| | - David R Maestas
- Translational Tissue Engineering Center, Wilmer Eye Institute and the Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jin Han
- Translational Tissue Engineering Center, Wilmer Eye Institute and the Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD
| | - James I Andorko
- Translational Tissue Engineering Center, Wilmer Eye Institute and the Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Patrick Cahan
- Department of Biomedical Engineering and Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elana J Fertig
- Department of Biomedical Engineering and Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Applied Mathematics and Statistics, Johns Hopkins University, Baltimore, MD, USA
| | - Lana X Garmire
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor. MI 48105
| | - Jennifer H Elisseeff
- Translational Tissue Engineering Center, Wilmer Eye Institute and the Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD,Bloomberg~Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD,To whom correspondence should be addressed:
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Moore DR. Protein Requirements for Master Athletes: Just Older Versions of Their Younger Selves. Sports Med 2021; 51:13-30. [PMID: 34515969 PMCID: PMC8566396 DOI: 10.1007/s40279-021-01510-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2021] [Indexed: 12/24/2022]
Abstract
It is established that protein requirements are elevated in athletes to support their training and post-exercise recovery and adaptation, especially within skeletal muscle. However, research on the requirements for this macronutrient has been performed almost exclusively in younger athletes, which may complicate their translation to the growing population of Master athletes (i.e. > 35 years old). In contrast to older (> 65 years) untrained adults who typically demonstrate anabolic resistance to dietary protein as a primary mediator of the ‘normal’ age-related loss of muscle mass and strength, Master athletes are generally considered successful models of aging as evidenced by possessing similar body composition, muscle mass, and aerobic fitness as untrained adults more than half their age. The primary physiology changes considered to underpin the anabolic resistance of aging are precipitated or exacerbated by physical inactivity, which has led to higher protein recommendations to stimulate muscle protein synthesis in older untrained compared to younger untrained adults. This review puts forth the argument that Master athletes have similar muscle characteristics, physiological responses to exercise, and protein metabolism as young athletes and, therefore, are unlikely to have protein requirements that are different from their young contemporaries. Recommendations for protein amount, type, and pattern will be discussed for Master athletes to enhance their recovery from and adaptation to resistance and endurance training.
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Affiliation(s)
- Daniel R Moore
- Faculty of Kinesiology and Physical Education, University of Toronto, 100 Devonshire Place, Toronto, ON, M5S 2C9, Canada.
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Whitely ME, Collins PB, Iwamoto M, Wenke JC. Administration of a selective retinoic acid receptor-γ agonist improves neuromuscular strength in a rodent model of volumetric muscle loss. J Exp Orthop 2021; 8:58. [PMID: 34383202 PMCID: PMC8360252 DOI: 10.1186/s40634-021-00378-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/30/2021] [Indexed: 12/24/2022] Open
Abstract
PURPOSE Volumetric muscle loss is a uniquely challenging pathology that results in irrecoverable functional deficits. Furthermore, a breakthrough drug or bioactive factor has yet to be established that adequately improves repair of these severe skeletal muscle injuries. This study sought to assess the ability of an orally administered selective retinoic acid receptor-γ agonist, palovarotene, to improve recovery of neuromuscular strength in a rat model of volumetric muscle loss. METHODS An irrecoverable, full thickness defect was created in the tibialis anterior muscle of Lewis rats and animals were survived for 4 weeks. Functional recovery of the tibialis anterior muscle was assessed in vivo via neural stimulation and determination of peak isometric torque. Histological staining was performed to qualitatively assess fibrous scarring of the defect site. RESULTS Treatment with the selective retinoic acid receptor-γ agonist, palovarotene, resulted in a 38% improvement of peak isometric torque in volumetric muscle loss affected limbs after 4 weeks of healing compared to untreated controls. Additionally, preliminary histological assessment suggests that oral administration of palovarotene reduced fibrous scarring at the defect site. CONCLUSIONS These results highlight the potential role of selective retinoic acid receptor-γ agonists in the design of regenerative medicine platforms to maximize skeletal muscle healing. Additional studies are needed to further elucidate cellular responses, optimize therapeutic delivery, and characterize synergistic potential with adjunct therapies.
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Affiliation(s)
- Michael E. Whitely
- Orthopaedic Trauma Department, United States Army Institute of Surgical Research, 3698 Chambers Pass, Building 3611, JBSA Fort Sam Houston, San Antonio, TX 78234 USA
| | - Patrick B. Collins
- Orthopaedic Trauma Department, United States Army Institute of Surgical Research, 3698 Chambers Pass, Building 3611, JBSA Fort Sam Houston, San Antonio, TX 78234 USA
| | - Masahiro Iwamoto
- Department of Orthopaedics, University of Maryland School of Medicine, 655 W Baltimore St, Baltimore, MD 21201 USA
| | - Joseph C. Wenke
- Orthopaedic Trauma Department, United States Army Institute of Surgical Research, 3698 Chambers Pass, Building 3611, JBSA Fort Sam Houston, San Antonio, TX 78234 USA
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Moreira-Pais A, Ferreira R, Oliveira PA, Duarte JA. Sarcopenia versus cancer cachexia: the muscle wasting continuum in healthy and diseased aging. Biogerontology 2021; 22:459-477. [PMID: 34324116 DOI: 10.1007/s10522-021-09932-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 07/21/2021] [Indexed: 12/15/2022]
Abstract
Muscle wasting is one of the major health problems in older adults and is traditionally associated to sarcopenia. Nonetheless, muscle loss may also occur in older adults in the presence of cancer, and in this case, it is associated to cancer cachexia. The clinical management of these conditions is a challenge due to, at least in part, the difficulties in their differential diagnosis. Thus, efforts have been made to better comprehend the pathogenesis of sarcopenia and cancer cachexia, envisioning the improvement of their clinical discrimination and treatment. To add insights on this topic, this review discusses the current knowledge on key molecular players underlying sarcopenia and cancer cachexia in a comparative perspective. Data retrieved from this analysis highlight that while sarcopenia is characterized by the atrophy of fast-twitch muscle fibers, in cancer cachexia an increase in the proportion of fast-twitch fibers appears to happen. The molecular drivers for these specificmuscle remodeling patterns are still unknown; however, among the predominant contributors to sarcopenia is the age-induced neuromuscular denervation, and in cancer cachexia, the muscle disuse experienced by cancer patients seems to play an important role. Moreover, inflammation appears to be more severe in cancer cachexia. Impairment of nutrition-related mediators may also contribute to sarcopenia and cancer cachexia, being distinctly modulated in each condition.
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Affiliation(s)
- Alexandra Moreira-Pais
- CIAFEL, Faculty of Sport, University of Porto, Dr. Plácido da Costa 91, 4200-450, Porto, Portugal. .,LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal. .,Centre for Research and Technology of Agro Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal. .,Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Paula A Oliveira
- Centre for Research and Technology of Agro Environmental and Biological Sciences (CITAB), Inov4Agro, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal
| | - José A Duarte
- CIAFEL, Faculty of Sport, University of Porto, Dr. Plácido da Costa 91, 4200-450, Porto, Portugal. .,Faculdade de Desporto, Universidade do Porto, Rua Dr. Plácido da Costa 91, 4200-450, Porto, Portugal. .,TOXRUN - Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, Gandra, Portugal.
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Gualano B, Kirwan JP, Roschel H. Exercise Is Key to Sustaining Metabolic Gains After Bariatric Surgery. Exerc Sport Sci Rev 2021; 49:197-204. [PMID: 34112745 PMCID: PMC8588125 DOI: 10.1249/jes.0000000000000253] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The extent to which the benefits of bariatric surgery may be maintained by lifestyle changes after surgery is unclear. Our hypothesis is that exercise may sustain some metabolic benefits and counteract some of the adverse effects of surgery. In this review, we present findings supporting the proposition that exercise is key to improving overall health in patients after bariatric surgery.
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Affiliation(s)
- Bruno Gualano
- Applied Physiology and Nutrition Research Group, School of Physical Education and Sport; Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, BR, University of Sao Paulo, SP, BR
| | - John P. Kirwan
- Integrated Physiology and Molecular Medicine Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA
| | - Hamilton Roschel
- Applied Physiology and Nutrition Research Group, School of Physical Education and Sport; Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, SP, BR, University of Sao Paulo, SP, BR
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44
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McKendry J, Stokes T, Mcleod JC, Phillips SM. Resistance Exercise, Aging, Disuse, and Muscle Protein Metabolism. Compr Physiol 2021; 11:2249-2278. [PMID: 34190341 DOI: 10.1002/cphy.c200029] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Skeletal muscle is the organ of locomotion, its optimal function is critical for athletic performance, and is also important for health due to its contribution to resting metabolic rate and as a site for glucose uptake and storage. Numerous endogenous and exogenous factors influence muscle mass. Much of what is currently known regarding muscle protein turnover is owed to the development and use of stable isotope tracers. Skeletal muscle mass is determined by the meal- and contraction-induced alterations of muscle protein synthesis and muscle protein breakdown. Increased loading as resistance training is the most potent nonpharmacological strategy by which skeletal muscle mass can be increased. Conversely, aging (sarcopenia) and muscle disuse lead to the development of anabolic resistance and contribute to the loss of skeletal muscle mass. Nascent omics-based technologies have significantly improved our understanding surrounding the regulation of skeletal muscle mass at the gene, transcript, and protein levels. Despite significant advances surrounding the mechanistic intricacies that underpin changes in skeletal muscle mass, these processes are complex, and more work is certainly needed. In this article, we provide an overview of the importance of skeletal muscle, describe the influence that resistance training, aging, and disuse exert on muscle protein turnover and the molecular regulatory processes that contribute to changes in muscle protein abundance. © 2021 American Physiological Society. Compr Physiol 11:2249-2278, 2021.
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Affiliation(s)
- James McKendry
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Tanner Stokes
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Jonathan C Mcleod
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Stuart M Phillips
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
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Zhang CY, Yang CQ, Chen Q, Liu J, Zhang G, Dong C, Liu XL, Farooq HMU, Zhao SQ, Luo LH, Jiang SF, Niu YB, Yin DC. miR-194-Loaded Gelatin Nanospheres Target MEF2C to Suppress Muscle Atrophy in a Mechanical Unloading Model. Mol Pharm 2021; 18:2959-2973. [PMID: 34189919 DOI: 10.1021/acs.molpharmaceut.1c00121] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Muscle atrophy usually occurs under mechanical unloading, which increases the risk of injury to reduce the functionality of the moving system, while there is still no effective therapy until now. It was found that miR-194 was significantly downregulated in a muscle atrophy model, and its target protein was the myocyte enhancer factor 2C (MEF2C). miR-194 could promote muscle differentiation and also inhibit ubiquitin ligases, thus miR-194 could be used as a nucleic acid drug to treat muscle atrophy, whereas miRNA was unstable in vivo, limiting its application as a therapeutic drug. A gelatin nanosphere (GN) delivery system was applied for the first time to load exogenous miRNA here. Exogenous miR-194 was loaded in GNs and injected into the muscle atrophy model. It demonstrated that the muscle fiber cross-sectional area, in situ muscle contractile properties, and myogenic markers were increased significantly after treatment. It proposed miR-194 loaded in GNs as an effective treatment for muscle atrophy by promoting muscle differentiation and inhibiting ubiquitin ligase activity. Moreover, the developed miRNA delivery system, taking advantage of its tunable composition, degradation rate, and capacity to load various drug molecules with high dosage, is considered a promising platform to achieve precise treatment of muscle atrophy-related diseases.
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Affiliation(s)
- Chen-Yan Zhang
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Chang-Qing Yang
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Qiang Chen
- State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Jie Liu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Ge Zhang
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Chen Dong
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Xin-Li Liu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Hafiz Muhammad Umer Farooq
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Shi-Qi Zhao
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Li-Heng Luo
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Shan-Feng Jiang
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Yin-Bo Niu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
| | - Da-Chuan Yin
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, P. R. China
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Tan LJ, Li XH, Li GG, Hu Y, Chen XD, Deng HW. Identification of novel pleiotropic gene for bone mineral density and lean mass using the cFDR method. Ann Hum Genet 2021; 85:201-212. [PMID: 34115876 DOI: 10.1111/ahg.12438] [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: 03/01/2021] [Revised: 05/26/2021] [Accepted: 06/01/2021] [Indexed: 11/27/2022]
Abstract
Bone mineral density (BMD) and whole-body lean mass (WBLM) are two important phenotypes of osteoporosis and sarcopenia. Previous studies have shown that BMD and lean mass were phenotypically and genetically correlated. To identify the novel common genetic factors shared between BMD and WBLM, we performed the conditional false discovery rate (cFDR) analysis using summary data of the genome-wide association study of femoral neck BMD (n = 53,236) and WBLM (n = 38,292) from the Genetic Factors for Osteoporosis Consortium (GEFOS). We identified eight pleiotropic Single Nucleotide Polymorphism (SNPs) (PLCL1 rs11684176 and rs2880389, JAZF1 rs198, ADAMTSL3 rs10906982, RFTN2/MARS2 rs7340470, SH3GL3 rs1896797, ST7L rs10776755, ANKRD44/SF3B1 rs11888760) significantly associated with femoral neck BMD and WBLM (ccFDR < 0.05). Bayesian fine-mapping analysis showed that rs11888760, rs198, and rs1896797 were the possible functional variants in the ANKRD44/SF3B1, JAZF1i, and SH3GL3 loci, respectively. Functional annotation suggested that rs11888760 was likely to comprise a DNA regulatory element and linked to the expression of RFTN2 and PLCL1. PLCL1 showed differential expression in laryngeal posterior cricoarytenoid muscle between rats of 6 months and 30 months of age. Our findings, together with PLCL1's potential functional relevance to bone and skeletal muscle function, suggested that rs11888760 was the possible pleiotropic functional variants appearing to coregulate both bone and muscle metabolism through regulating the expression of PLCL1. The findings enhanced our knowledge of genetic associations between BMD and lean mass and provide a rationale for subsequent functional studies of the implicated genes in the pathophysiology of diseases, such as osteoporosis and sarcopenia.
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Affiliation(s)
- Li-Jun Tan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Xiao-Hua Li
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Gai-Gai Li
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Yuan Hu
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Xiang-Ding Chen
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China
| | - Hong-Wen Deng
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China.,Center of Bioinformatics and Genomics, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, USA
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47
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Zhou L, Lu R, Huang C, Lin D. Taurine Protects C2C12 Myoblasts From Impaired Cell Proliferation and Myotube Differentiation Under Cisplatin-Induced ROS Exposure. Front Mol Biosci 2021; 8:685362. [PMID: 34124164 PMCID: PMC8189557 DOI: 10.3389/fmolb.2021.685362] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 04/29/2021] [Indexed: 12/21/2022] Open
Abstract
In cancer patients, chemotherapeutic medication induces aberrant ROS (reactive oxygen species) accumulation in skeletal muscles, resulting in myofiber degradation, muscle weakness, and even cachexia, which further leads to poor therapeutic outcomes. Acting as an antioxidant, taurine is extensively used to accelerate postexercise muscle recovery in athletes. The antioxidant effects of taurine have been shown in mature myotubes and myofibers but not yet in myoblasts, the myotube precursor. The proliferation and differentiation ability of myoblasts play a very important role in myofiber repair and regeneration, which is usually impaired during chemotherapeutics in cancer patients as well. Here, we explored the effects of taurine supplementation on C2C12 myoblasts exposed to cisplatin-induced ROS. We found that cisplatin treatment led to dramatically decreased cell viability; accumulated ROS level; down-regulated expressions of MyoD1 (myoblast determination protein 1), myogenin, and MHC (myosin heavy chain); and impaired myotube differentiation in myoblasts. Significantly, taurine supplementation protected myoblasts against cisplatin-induced cell viability decrease, promoted cellular ROS clearance, and, most importantly, preserved the expressions of MyoD1, myogenin, and MHC as well as myotube differentiation ability. We further conducted NMR-based metabolomic analysis to clarify the underlying molecular mechanisms. We identified 14 characteristic metabolites primarily responsible for the discrimination of metabolic profiles between cisplatin-treated cells and normal counterparts, including increased levels of BCAAs (branched-chain amino acids: leucine and isoleucine), alanine, glycine, threonine, glucose, ADP (adenosine diphosphate), phenylalanine, and PC (O-phosphocholine), and decreased levels of lysine, β-alanine, choline, GPC (sn-glycero-3-phosphocholine), and myo-inositol. Evidently, taurine supplementation partially reversed the changing trends of several metabolites (isoleucine, threonine, glycine, PC, β-alanine, lysine, and myo-inositol). Furthermore, taurine supplementation promoted the proliferation and myotube differentiation of myoblasts by alleviating cellular catabolism, facilitating GSH (reduced glutathione) biosynthesis, improving glucose utilization and TCA (tricarboxylic acid) cycle anaplerosis, and stabilizing cellular membranes. Our results demonstrated the protective effects of taurine on cisplatin-impaired myoblasts and elucidated the mechanistic rationale for the use of taurine to ameliorate muscle toxicity in clinical chemotherapy cancer patients.
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Affiliation(s)
- Lin Zhou
- Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Ruohan Lu
- Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Caihua Huang
- Research and Communication Center of Exercise and Health, Xiamen University of Technology, Xiamen, China
| | - Donghai Lin
- Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
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Mahmassani ZS, McKenzie AI, Petrocelli JJ, de Hart NM, Reidy PT, Fix DK, Ferrara PJ, Funai K, Drummond MJ. Short-term metformin ingestion by healthy older adults improves myoblast function. Am J Physiol Cell Physiol 2021; 320:C566-C576. [PMID: 33406027 DOI: 10.1152/ajpcell.00469.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Muscle progenitor cells (MPCs) in aged muscle exhibit impaired activation into proliferating myoblasts, thereby impairing fusion and changes in secreted factors. The antihyperglycemic drug metformin, currently studied as a candidate antiaging therapy, may have potential to promote function of aged MPCs. We evaluated the impact of 2 wk of metformin ingestion on primary myoblast function measured in vitro after being extracted from muscle biopsies of older adult participants. MPCs were isolated from muscle biopsies of community-dwelling older (4 male/4 female, ∼69 yr) adult participants before (pre) and after (post) the metformin ingestion period and studied in vitro. Cells were extracted from Young participants (4 male/4 female, ∼27 yr) to serve as a "youthful" comparator. MPCs from Old subjects had lower fusion index and myoblast-endothelial cell homing compared with Young, while Old MPCs, extracted after short-term metformin ingestion, performed better at both tasks. Transcriptomic analyses of Old MPCs (vs. Young) revealed decreased histone expression and increased myogenic pathway activity, yet this phenotype was partially restored by metformin. However, metformin ingestion exacerbated pathways related to inflammation signaling. Together, this study demonstrated that 2 wk of metformin ingestion induced persistent effects on Old MPCs that improved function in vitro and altered their transcriptional signature including histone and chromatin remodeling.
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Affiliation(s)
- Ziad S Mahmassani
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah
| | - Alec I McKenzie
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah
| | - Jonathan J Petrocelli
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah
| | - Naomi M de Hart
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah
| | - Paul T Reidy
- Department of Kinesiology and Health, University of Miami Ohio, Oxford, Ohio
| | - Dennis K Fix
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah
| | - Patrick J Ferrara
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah
| | - Katsuhiko Funai
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah.,Molecular Medicine Program, University of Utah, Salt Lake City, Utah
| | - Micah J Drummond
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah.,Molecular Medicine Program, University of Utah, Salt Lake City, Utah
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Papanikolaou K, Veskoukis AS, Draganidis D, Baloyiannis I, Deli CK, Poulios A, Jamurtas AZ, Fatouros IG. Redox-dependent regulation of satellite cells following aseptic muscle trauma: Implications for sports performance and nutrition. Free Radic Biol Med 2020; 161:125-138. [PMID: 33039652 DOI: 10.1016/j.freeradbiomed.2020.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/26/2020] [Accepted: 10/01/2020] [Indexed: 12/21/2022]
Abstract
Skeletal muscle satellite cells (SCs) are indispensable for tissue regeneration, remodeling and growth. Following myotrauma, SCs are activated, and assist in tissue repair. Exercise-induced muscle damage (EIMD) is characterized by a pronounced inflammatory response and the production of reactive oxygen species (ROS). Experimental evidence suggests that SCs kinetics (the propagation from a quiescent to an activated/proliferative state) following EIMD is redox-dependent and interconnected with changes in the SCs microenvironment (niche). Animal studies have shown that following aseptic myotrauma, antioxidant and/or anti-inflammatory supplementation leads to an improved recovery and skeletal muscle regeneration through enhanced SCs kinetics, suggesting a redox-dependent molecular mechanism. Although evidence suggests that antioxidant/anti-inflammatory compounds may prevent performance deterioration and enhance recovery, there is lack of information regarding the redox-dependent regulation of SCs responses following EIMD in humans. In this review, SCs kinetics following aseptic myotrauma, as well as the intrinsic redox-sensitive molecular mechanisms responsible for SCs responses are discussed. The role of redox status on SCs function should be further investigated in the future with human clinical trials in an attempt to elucidate the molecular pathways responsible for muscle recovery and provide information for potential nutritional strategies aiming at performance recovery.
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Affiliation(s)
- Konstantinos Papanikolaou
- Department of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, 42132, Greece
| | - Aristidis S Veskoukis
- Department of Nutrition and Dietetics, University of Thessaly, Argonafton 1, 42132, Trikala, Greece; Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Dimitrios Draganidis
- Department of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, 42132, Greece
| | - Ioannis Baloyiannis
- Department of Surgery, University Hospital of Larissa, Mezourlo, 41110, Larissa, Greece
| | - Chariklia K Deli
- Department of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, 42132, Greece
| | - Athanasios Poulios
- Department of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, 42132, Greece
| | - Athanasios Z Jamurtas
- Department of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, 42132, Greece
| | - Ioannis G Fatouros
- Department of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, 42132, Greece.
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50
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Betz MW, Aussieker T, Kruger CQ, Gorissen SHM, van Loon LJC, Snijders T. Muscle fiber capillarization is associated with various indices of skeletal muscle mass in healthy, older men. Exp Gerontol 2020; 143:111161. [PMID: 33227401 DOI: 10.1016/j.exger.2020.111161] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/06/2020] [Accepted: 11/18/2020] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Muscle fiber capillarization plays a fundamental role in the regulation of skeletal muscle mass maintenance. However, it remains unclear to what extent capillarization is related to various other skeletal muscle characteristics. In this study we determined whether muscle fiber capillarization is independently associated with measures of skeletal muscle mass, both on a whole-body and cellular level, and post-absorptive muscle protein synthesis rates in healthy older men. METHODS Forty-six healthy older (70 ± 4 y) men participated in a trial during which basal muscle protein synthesis rates were assessed using stable isotope tracer methodology. Blood and muscle biopsy samples were collected to assess post-absorptive muscle protein synthesis rates over a 3-hour period. Immunohistochemistry was performed to determine various indices of muscle fiber capillarization, size, type distribution, and myonuclear content/domain size. Dual energy x-ray absorptiometry scans were performed to determine whole-body and appendicular lean tissue mass. RESULTS Capillary-to-fiber ratio (C/Fi) and perimeter exchange (CFPE) index correlated with whole-body lean tissue mass (r = 0.43, P < 0.01 and r = 0.25, P < 0.10, respectively), appendicular lean tissue mass (r = 0.52, P < 0.001 and r = 0.37, P < 0.05, respectively) as well as appendicular lean tissue mass divided by body mass index (r = 0.65, P < 0.001 and r = 0.62, P < 0.001, respectively). Muscle fiber size correlated with C/Fi (r = 0.45, P < 0.01), but not with CFPE index. No associations were observed between different indices of muscle fiber capillarization and post-absorptive muscle protein synthesis rates in healthy, older men. CONCLUSION The present study provides further evidence that muscle fiber capillarization may be a critical factor in the regulation of skeletal muscle maintenance in healthy older men.
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Affiliation(s)
- M W Betz
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - T Aussieker
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - C Q Kruger
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - S H M Gorissen
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - L J C van Loon
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - T Snijders
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands.
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