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Wan J, Cheng C, Li X, Zhu Y, Su H, Gong Y, Ding K, Gao X, Dang C, Li G, Jiang W, Yao LH. Lactate ameliorates palmitate-induced impairment of differentiative capacity in C2C12 cells through the activation of voltage-gated calcium channels. J Physiol Biochem 2024; 80:349-362. [PMID: 38372933 DOI: 10.1007/s13105-024-01009-y] [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: 03/21/2023] [Accepted: 02/07/2024] [Indexed: 02/20/2024]
Abstract
Palmitic acid (PA), a saturated fatty acid enriched in high-fat diet, has been implicated in the development of skeletal muscle regeneration dysfunction. This study aimed to examine the effects and mechanisms of lactate (Lac) treatment on PA-induced impairment of C2C12 cell differentiation capacity. Furthermore, the involvement of voltage-gated calcium channels in this context was examined. In this study, Lac could improve the PA-induced impairment of differentiative capacity in C2C12 cells by affecting Myf5, MyoD and MyoG. In addition, Lac increases the inward flow of Ca2+, and promotes the depolarization of the cell membrane potential, thereby activating voltage-gated calcium channels during C2C12 cell differentiation. The enchancement of Lac on myoblast differentiative capacity was abolished after the addition of efonidipine (voltage-gated calcium channel inhibitors). Therefore, voltage-gated calcium channels play an important role in improving PA-induced skeletal muscle regeneration disorders by exercising blood Lac. Our study showed that Lac could rescue the PA-induced impairment of differentiative capacity in C2C12 cells by affecting Myf5, MyoD and MyoG through the activation of voltage-gated calcium channels.
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Affiliation(s)
- Juan Wan
- School of Sport Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Chunfang Cheng
- School of Sport Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Xiaonuo Li
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Yuanjie Zhu
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Hu Su
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Yanchun Gong
- School of Sport Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China.
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China.
| | - Kaizhi Ding
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Xiaofei Gao
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Caixia Dang
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Guoyin Li
- School of Sport Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Wei Jiang
- Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Li-Hua Yao
- School of Sport Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China.
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, Jiangxi, 330013, People's Republic of China.
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Chen Y, Wu J. Aging-Related Sarcopenia: Metabolic Characteristics and Therapeutic Strategies. Aging Dis 2024:AD.2024.0407. [PMID: 38739945 DOI: 10.14336/ad.2024.0407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 04/07/2024] [Indexed: 05/16/2024] Open
Abstract
The proportion of the elderly population is gradually increasing as a result of medical care advances, leading to a subsequent surge in geriatric diseases that significantly impact quality of life and pose a substantial healthcare burden. Sarcopenia, characterized by age-related decline in skeletal muscle mass and quality, affects a considerable portion of older adults, particularly the elderly, and can result in adverse outcomes such as frailty, fractures, bedridden, hospitalization, and even mortality. Skeletal muscle aging is accompanied by underlying metabolic changes. Therefore, elucidating these metabolic profiles and specific mechanisms holds promise for informing prevention and treatment strategies for sarcopenia. This review provides a comprehensive overview of the key metabolites identified in current clinical studies on sarcopenia and their potential pathophysiological alterations in metabolic activity. Besides, we examine potential therapeutic strategies for sarcopenia from a perspective focused on metabolic regulation.
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Pan D, Yang L, Yang X, Xu D, Wang S, Gao H, Liu H, Xia H, Yang C, Lu Y, Sun J, Wang Y, Sun G. Potential nutritional strategies to prevent and reverse sarcopenia in aging process: Role of fish oil-derived ω-3 polyunsaturated fatty acids, wheat oligopeptide and their combined intervention. J Adv Res 2024; 57:77-91. [PMID: 37061218 PMCID: PMC10918331 DOI: 10.1016/j.jare.2023.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/24/2023] [Accepted: 04/10/2023] [Indexed: 04/17/2023] Open
Abstract
INTRODUCTION Nutritional support is potentially considered an essential step to prevent muscle loss and enhance physical function in older adults. OBJECTIVES This study aimed to assess the role of potential nutritional strategies, i.e., fish oil-derived ω-3 polyunsaturated fatty acids (PUFAs), wheat oligopeptide and their combined intervention, in preventing and reversing sarcopenia in aging process. METHODS One hundred 25-month-old Sprague-Dawley rats were randomly divided into 10 groups, and 10 newly purchased 6-month-old rats were included in young control group (n = 10). Fish oil (200, 400 or 800 mg/kg body weight), wheat oligopeptide (100, 200 or 400 mg/kg body weight), fish oil + wheat oligopeptide (800 + 100, 400 + 200 or 200 + 400 mg/kg body weight) or the equal volume of solvent were administered daily by gavage for 10 weeks. The effects of these interventions on natural aging rats were evaluated. RESULTS All intervention groups had a significant increase in muscle mass and grip strength and reduction in perirenal fat weight when compared to the aged control group (P < 0.05). The results of biochemical parameters, magnetic resonance imaging, proteomics and western blot suggested that the combination of wheat oligopeptide and fish oil-derived ω-3 PUFA, especially group WFM 2 (400 + 200 mg/kg body weight fish oil + wheat oligopeptide), was found to be more effective against aging-associated muscle loss than single intervention. Additionally, the interventions ameliorated fatty infiltration, muscle atrophy, and congestion in the intercellular matrix, and inflammatory cell infiltration in muscle tissue. The interventions also improved oxidative stress, anabolism, hormone levels, and inflammatory levels of skeletal muscle. CONCLUSIONS The combination of fish oil-derived ω-3 PUFA and wheat oligopeptide was found to be a promising nutritional support to prevent and reverse sarcopenia. The potential mechanism involved the promotion of protein synthesis and muscle regeneration, as well as the enhancement of muscle strength.
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Affiliation(s)
- Da Pan
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Ligang Yang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Xian Yang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Dengfeng Xu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Shaokang Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China; School of Medicine, Xizang Minzu University, 712082 Xianyang, PR China
| | - Han Gao
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Hechun Liu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China; Department of Endocrinology and Metabolism, The First Affiliated Hospital of Nanjing Medical University, 210009 Nanjing, PR China
| | - Hui Xia
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Chao Yang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China; Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, PR China
| | - Yifei Lu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Jihan Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Yuanyuan Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China
| | - Guiju Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, 210009 Nanjing, PR China.
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Petry ÉR, Dresch DDF, Carvalho C, Medeiros PC, Rosa TG, de Oliveira CM, Martins LAM, Guma FCR, Marroni NP, Wannmacher CMD. Oral glutamine supplementation relieves muscle loss in immobilized rats, altering p38MAPK and FOXO3a signaling pathways. Nutrition 2024; 118:112273. [PMID: 38096603 DOI: 10.1016/j.nut.2023.112273] [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: 08/22/2023] [Revised: 10/05/2023] [Accepted: 10/22/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Skeletal muscle synthesizes, stores, and releases body L-glutamine (GLN). Muscle atrophy due to disabling diseases triggers the activation of proteolytic and pro-apoptotic cell signaling, thus impairing the body's capacity to manage GLN content. This situation has a poor therapeutic prognosis. OBJECTIVE Evaluating if oral GLN supplementation can attenuate muscle wasting mediated by elevated plasma cortisol and activation of caspase-3, p38MAPK, and FOXO3a signaling pathways in soleus and gastrocnemius muscles of rats submitted to 14-day bilateral hindlimbs immobilization. METHODS Animals were randomly distributed into six groups: non-immobilized rats (Control), control orally supplemented with GLN (1 g kg-1) in solution with L-alanine (ALA: 0.61 g kg-1; GLN+ALA), control orally supplemented with dipeptide L-alanyl-L-glutamine (DIP; 1.49 g kg-1), hindlimbs immobilized rats (IMOB), IMOB orally GLN+ALA supplemented (GLN+ALA-IMOB), and IMOB orally DIP supplemented (DIP-IMOB). Plasma and muscle GLN concentration, plasma cortisol level, muscle caspase-3 activity, muscle p38MAPK and FOXO3a protein content (total and phosphorylated forms), and muscle cross-sectional area (CSA) were measured. RESULTS Compared to controls, IMOB rats presented: a) increased plasma cortisol levels; b) decreased plasma and muscle GLN concentration; c) increased muscle caspase-3 activity; d) increased total and phosphorylated p38MAPK protein content; e) increased FOXO3a and decreased phosphorylated FOXO3a protein content; f) reduced muscle weight and CSA befitting to atrophy. Oral supplementation with GLN+ALA and DIP was able to significantly attenuate these effects. CONCLUSIONS These findings attest that oral GLN supplementation in GLN+ALA solution or DIP forms attenuates rats' skeletal muscle mass wasting caused by disuse-mediated muscle atrophy.
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Affiliation(s)
- Éder Ricardo Petry
- Department of Cellular and Molecular Physiology, College of Medicine, Penn State University, Hershey, Pennsylvania, USA; Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Department of Biochemistry, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.
| | - Diego de Freitas Dresch
- Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Clarice Carvalho
- Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Patricia Calçada Medeiros
- Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Tatiana Gomes Rosa
- Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Faculdades Integradas de Taquara (FACCAT), Taquara, Rio Grande do Sul, Brazil
| | - Cleverson Morais de Oliveira
- Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Department of Biochemistry, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Leo Anderson Meira Martins
- Laboratory of Endocrine and Tumor Molecular Biology, Department of Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul, Brazil; Post-Graduate Program in Biological Sciences: Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Fátima Costa Rodrigues Guma
- Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Department of Biochemistry, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Norma Possas Marroni
- Post-Graduate Program in Biological Sciences: Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Department of Physiology, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil; Post-Graduate Program in Medicine: Medical Sciences, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil; Laboratory of Pulmonological Sciences: Inflammation, Experimental Research Center, Clinical Hospital of Porto Alegre (HCPA), UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Clóvis Milton Duval Wannmacher
- Post-Graduate Program in Biological Sciences: Biochemistry, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Department of Biochemistry, ICBS, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
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Awad S, Skipper W, Vostrejs W, Ozorowski K, Min K, Pfuhler L, Mehta D, Cooke A. The YBX3 RNA-binding protein posttranscriptionally controls SLC1A5 mRNA in proliferating and differentiating skeletal muscle cells. J Biol Chem 2024; 300:105602. [PMID: 38159852 PMCID: PMC10837625 DOI: 10.1016/j.jbc.2023.105602] [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: 07/29/2023] [Revised: 11/22/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024] Open
Abstract
In humans, skeletal muscles comprise nearly 40% of total body mass, which is maintained throughout adulthood by a balance of muscle protein synthesis and breakdown. Cellular amino acid (AA) levels are critical for these processes, and mammalian cells contain transporter proteins that import AAs to maintain homeostasis. Until recently, the control of transporter regulation has largely been studied at the transcriptional and posttranslational levels. However, here, we report that the RNA-binding protein YBX3 is critical to sustain intracellular AAs in mouse skeletal muscle cells, which aligns with our recent findings in human cells. We find that YBX3 directly binds the solute carrier (SLC)1A5 AA transporter messenger (m)RNA to posttranscriptionally control SLC1A5 expression during skeletal muscle cell differentiation. YBX3 regulation of SLC1A5 requires the 3' UTR. Additionally, intracellular AAs transported by SLC1A5, either directly or indirectly through coupling to other transporters, are specifically reduced when YBX3 is depleted. Further, we find that reduction of the YBX3 protein reduces proliferation and impairs differentiation in skeletal muscle cells, and that YBX3 and SLC1A5 protein expression increase substantially during skeletal muscle differentiation, independently of their respective mRNA levels. Taken together, our findings suggest that YBX3 regulates AA transport in skeletal muscle cells, and that its expression is critical to maintain skeletal muscle cell proliferation and differentiation.
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Affiliation(s)
- Silina Awad
- Biology Department, Haverford College, Haverford, Pennsylvania, USA
| | - William Skipper
- Biology Department, Haverford College, Haverford, Pennsylvania, USA
| | - William Vostrejs
- Biology Department, Haverford College, Haverford, Pennsylvania, USA
| | | | - Kristen Min
- Biology Department, Haverford College, Haverford, Pennsylvania, USA
| | - Liva Pfuhler
- Biology Department, Haverford College, Haverford, Pennsylvania, USA
| | - Darshan Mehta
- Biology Department, Haverford College, Haverford, Pennsylvania, USA
| | - Amy Cooke
- Biology Department, Haverford College, Haverford, Pennsylvania, USA.
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Stella R, Bonadio RS, Cagnin S, Andreotti R, Massimino ML, Bertoli A, Peggion C. Secreted Metabolome of ALS-Related hSOD1(G93A) Primary Cultures of Myocytes and Implications for Myogenesis. Cells 2023; 12:2751. [PMID: 38067180 PMCID: PMC10706027 DOI: 10.3390/cells12232751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a motor neuron (MN) disease associated with progressive muscle atrophy, paralysis, and eventually death. Growing evidence demonstrates that the pathological process leading to ALS is the result of multiple altered mechanisms occurring not only in MNs but also in other cell types inside and outside the central nervous system. In this context, the involvement of skeletal muscle has been the subject of a few studies on patients and ALS animal models. In this work, by using primary myocytes derived from the ALS transgenic hSOD1(G93A) mouse model, we observed that the myogenic capability of such cells was defective compared to cells derived from control mice expressing the nonpathogenic hSOD1(WT) isoform. The correct in vitro myogenesis of hSOD1(G93A) primary skeletal muscle cells was rescued by the addition of a conditioned medium from healthy hSOD1(WT) myocytes, suggesting the existence of an in trans activity of secreted factors. To define a dataset of molecules participating in such safeguard action, we conducted comparative metabolomic profiling of a culture medium collected from hSOD1(G93A) and hSOD1(WT) primary myocytes and report here an altered secretion of amino acids and lipid-based signaling molecules. These findings support the urgency of better understanding the role of the skeletal muscle secretome in the regulation of the myogenic program and mechanisms of ALS pathogenesis and progression.
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Affiliation(s)
- Roberto Stella
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
| | | | - Stefano Cagnin
- Department of Biology, University of Padova, 35131 Padova, Italy (S.C.)
- CIR-Myo Myology Center, University of Padova, 35131 Padova, Italy
| | - Roberta Andreotti
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy (A.B.)
| | - Maria Lina Massimino
- Neuroscience Institute, Consiglio Nazionale delle Ricerche, 35131 Padova, Italy;
| | - Alessandro Bertoli
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy (A.B.)
- Neuroscience Institute, Consiglio Nazionale delle Ricerche, 35131 Padova, Italy;
- Padova Neuroscience Center, University of Padova, 35131 Padova, Italy
| | - Caterina Peggion
- Department of Biology, University of Padova, 35131 Padova, Italy (S.C.)
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Mohd Sahardi NFN, Jaafar F, Tan JK, Mad Nordin MF, Makpol S. Elucidating the Pharmacological Properties of Zingiber officinale Roscoe (Ginger) on Muscle Ageing by Untargeted Metabolomic Profiling of Human Myoblasts. Nutrients 2023; 15:4520. [PMID: 37960173 PMCID: PMC10648528 DOI: 10.3390/nu15214520] [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: 08/31/2023] [Revised: 09/29/2023] [Accepted: 10/06/2023] [Indexed: 11/15/2023] Open
Abstract
(1) Background: Muscle loss is associated with frailty and a reduction in physical strength and performance, which is caused by increased oxidative stress. Ginger (Zingiber officinale Roscoe) is a potential herb that can be used to reduce the level of oxidative stress. This study aimed to determine the effect of ginger on the expression of metabolites and their metabolic pathways in the myoblast cells to elucidate the mechanism involved and its pharmacological properties in promoting myoblast differentiation. (2) Methods: The myoblast cells were cultured into three stages (young, pre-senescent and senescent). At each stage, the myoblasts were treated with different concentrations of ginger extract. Then, metabolomic analysis was performed using liquid chromatography-tandem mass spectrometry (LCMS/MS). (3) Results: Nine metabolites were decreased in both the pre-senescent and senescent control groups as compared to the young control group. For the young ginger-treated group, 8-shogaol and valine were upregulated, whereas adipic acid and bis (4-ethyl benzylidene) sorbitol were decreased. In the pre-senescent ginger-treated group, the niacinamide was upregulated, while carnitine and creatine were downregulated. Ginger treatment in the senescent group caused a significant upregulation in 8-shogaol, octadecanamide and uracil. (4) Conclusions: Ginger extract has the potential as a pharmacological agent to reduce muscle loss in skeletal muscle by triggering changes in some metabolites and their pathways that could promote muscle regeneration in ageing.
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Affiliation(s)
- Nur Fatin Nabilah Mohd Sahardi
- Department of Biochemistry, Faculty of Medicine, Level 17, Preclinical Building, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia
| | - Faizul Jaafar
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia
| | - Jen Kit Tan
- Department of Biochemistry, Faculty of Medicine, Level 17, Preclinical Building, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia
| | | | - Suzana Makpol
- Department of Biochemistry, Faculty of Medicine, Level 17, Preclinical Building, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia
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8
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Ueno S, Seino Y, Hidaka S, Nakatani M, Hitachi K, Murao N, Maeda Y, Fujisawa H, Shibata M, Takayanagi T, Iizuka K, Yabe D, Sugimura Y, Tsuchida K, Hayashi Y, Suzuki A. Blockade of glucagon increases muscle mass and alters fiber type composition in mice deficient in proglucagon-derived peptides. J Diabetes Investig 2023; 14:1045-1055. [PMID: 37300240 PMCID: PMC10445200 DOI: 10.1111/jdi.14032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/02/2023] [Accepted: 05/12/2023] [Indexed: 06/12/2023] Open
Abstract
AIMS/INTRODUCTION Glucagon is secreted from pancreatic α-cells and plays an important role in amino acid metabolism in liver. Various animal models deficient in glucagon action show hyper-amino acidemia and α-cell hyperplasia, indicating that glucagon contributes to feedback regulation between the liver and the α-cells. In addition, both insulin and various amino acids, including branched-chain amino acids and alanine, participate in protein synthesis in skeletal muscle. However, the effect of hyperaminoacidemia on skeletal muscle has not been investigated. In the present study, we examined the effect of blockade of glucagon action on skeletal muscle using mice deficient in proglucagon-derived peptides (GCGKO mice). MATERIALS AND METHODS Muscles isolated from GCGKO and control mice were analyzed for their morphology, gene expression and metabolites. RESULTS GCGKO mice showed muscle fiber hypertrophy, and a decreased ratio of type IIA and an increased ratio of type IIB fibers in the tibialis anterior. The expression levels of myosin heavy chain (Myh) 7, 2, 1 and myoglobin messenger ribonucleic acid were significantly lower in GCGKO mice than those in control mice in the tibialis anterior. GCGKO mice showed a significantly higher concentration of arginine, asparagine, serine and threonine in the quadriceps femoris muscles, and also alanine, aspartic acid, cysteine, glutamine, glycine and lysine, as well as four amino acids in gastrocnemius muscles. CONCLUSIONS These results show that hyperaminoacidemia induced by blockade of glucagon action in mice increases skeletal muscle weight and stimulates slow-to-fast transition in type II fibers of skeletal muscle, mimicking the phenotype of a high-protein diet.
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Affiliation(s)
- Shinji Ueno
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
| | - Yusuke Seino
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
- Yutaka Seino Distinguished Center for Diabetes ResearchKansai Electric Power Medical Research InstituteKyotoKyotoJapan
| | - Shihomi Hidaka
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
| | - Masashi Nakatani
- Faculty of RehabilitationSeijoh UniversityTokaiAichiJapan
- Institute for Comprehensive Medical ScienceFujita Health UniversityToyoakeAichiJapan
| | - Keisuke Hitachi
- Institute for Comprehensive Medical ScienceFujita Health UniversityToyoakeAichiJapan
| | - Naoya Murao
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
- Yutaka Seino Distinguished Center for Diabetes ResearchKansai Electric Power Medical Research InstituteKyotoKyotoJapan
| | - Yasuhiro Maeda
- Open Facility CenterFujita Health UniversityToyoakeAichiJapan
| | - Haruki Fujisawa
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
| | - Megumi Shibata
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
| | - Takeshi Takayanagi
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
| | - Katsumi Iizuka
- Department of Clinical NutritionFujita Health UniversityToyoakeAichiJapan
| | - Daisuke Yabe
- Yutaka Seino Distinguished Center for Diabetes ResearchKansai Electric Power Medical Research InstituteKyotoKyotoJapan
- Department of Diabetes, Endocrinology and MetabolismGifu University Graduate School of MedicineGifuGifuJapan
- Department of Rheumatology and Clinical ImmunologyGifu University Graduate School of MedicineGifuGifuJapan
- Center for One Medicine Innovative Translational ResearchGifu University Graduate School of MedicineGifuGifuJapan
- Center for Healthcare Information TechnologyTokai National Higher Education and Research SystemNagoyaAichiJapan
- Division of Molecular and Metabolic MedicineKobe University Graduate School of MedicineKobeHyogoJapan
| | - Yoshihisa Sugimura
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
| | - Kunihiro Tsuchida
- Institute for Comprehensive Medical ScienceFujita Health UniversityToyoakeAichiJapan
| | - Yoshitaka Hayashi
- Department of Endocrinology, Research Institute of Environmental MedicineNagoya UniversityNagoyaAichiJapan
- Department of EndocrinologyNagoya University Graduate School of MedicineNagoyaAichiJapan
| | - Atsushi Suzuki
- Departments of Endocrinology, Diabetes and MetabolismFujita Health University School of MedicineToyoakeAichiJapan
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Guo L, Li Y, Xing Z, Zhang J, Zhang J. Role of VEGFB in electrical pulse stimulation inhibits apoptosis in C2C12 myotubes. Peptides 2022; 154:170823. [PMID: 35660637 DOI: 10.1016/j.peptides.2022.170823] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/28/2022] [Accepted: 05/30/2022] [Indexed: 12/30/2022]
Abstract
Skeletal muscle is the major effector organ for exercise. It has been proposed that VEGFB is significantly related to apoptosis in various cell types but not yet in skeletal muscle. We hypothesize that the decrease of VEGFB in skeletal muscle participates in the occurrence of skeletal muscle apoptosis and that exercise inhibits apoptosis by elevating the expression of VEGFB in skeletal muscle cells. Based on this hypothesis, we developed in vitro experiments to mimic the effect of exercise through electrical pulse stimulation (EPS) to observe the effect of EPS on apoptosis and the change in VEGFB expression in differentiated myotubes. In addition, we employed RNA interference to explore whether VEGFB is directly involved in the regulation of myotube apoptosis during EPS. Our results showed that exogenous VEGFB167 significantly inhibited C2C12 myotube apoptosis induced by TNF-α treatment and that endogenous VEGFB in differentiated C2C12 myotubes was significantly upregulated by EPS. In addition, EPS significantly changed the expression of the apoptotic indicators Bax and Bcl-2 at the mRNA level and downregulated the protein expression of cleaved caspase-3. The antiapoptotic effect of EPS weakened substantially as VEGFB in C2C12 myotubes was inhibited. Taken together, these results indicate that exercise-like EPS inhibits apoptosis by increasing the expression of C2C12 myotube-derived VEGFB.
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Affiliation(s)
- LanLan Guo
- School of P.E. and Sports Science, Beijing Normal University, Beijing 100875, China
| | - YanJun Li
- School of P.E. and Sports Science, Beijing Normal University, Beijing 100875, China
| | - Zheng Xing
- School of P.E. and Sports Science, Beijing Normal University, Beijing 100875, China
| | - JingBo Zhang
- School of P.E. and Sports Science, Beijing Normal University, Beijing 100875, China
| | - Jing Zhang
- School of P.E. and Sports Science, Beijing Normal University, Beijing 100875, China.
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10
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Murata K, Kaji K, Nishimura N, Enomoto M, Fujimoto Y, Takeda S, Tsuji Y, Fujinaga Y, Takaya H, Kawaratani H, Namisaki T, Akahane T, Yoshiji H. Rifaximin enhances the L‑carnitine‑mediated preventive effects on skeletal muscle atrophy in cirrhotic rats by modulating the gut‑liver‑muscle axis. Int J Mol Med 2022; 50:101. [PMID: 35686541 PMCID: PMC9242656 DOI: 10.3892/ijmm.2022.5157] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/24/2022] [Indexed: 11/05/2022] Open
Abstract
The gut‑liver‑muscle axis is associated with the development of sarcopenia in liver cirrhosis. The present study aimed to illustrate the combined effects of rifaximin and L‑carnitine on skeletal muscle atrophy in cirrhotic rats with steatohepatitis. For this purpose, a total of 344 Fischer rats were fed a choline‑deficient L‑amino acid‑defined (CDAA) diet with the daily oral administration of rifaximin (100 mg/kg) and/or L‑carnitine (200 mg/kg), and measurements of psoas muscle mass index and forelimb grip strength were performed. After feeding for 12 weeks, blood samples, and liver, ileum and gastrocnemius muscle tissues were harvested. The effects of L‑carnitine on rat myocytes were assessed using in vitro assays. Treatment with rifaximin attenuated hyperammonemia and liver fibrosis in the CDAA‑fed rats. Moreover, it improved intestinal permeability with the restoration of tight junction proteins and suppressed the lipopolysaccharide (LPS)‑mediated hepatic macrophage activation and pro‑inflammatory response. In addition, rifaximin prevented skeletal muscle mass atrophy and weakness by decreasing intramuscular myostatin and pro‑inflammatory cytokine levels. Moreover, rifaximin synergistically enhanced the L‑carnitine‑mediated improvement of skeletal muscle wasting by promoting the production of insulin‑like growth factor‑1 and mitochondrial biogenesis, resulting in the inhibition of the ubiquitin‑proteasome system (UPS). The in vitro assays revealed that L‑carnitine directly attenuated the impairment of mitochondrial biogenesis, thereby inhibiting the UPS in rat myocytes that were stimulated with LPS or tumor necrosis factor‑α. On the whole, the present study demonstrates that the combination of rifaximin with L‑carnitine may provide a clinical benefit for liver cirrhosis‑related sarcopenia.
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Affiliation(s)
- Koji Murata
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Kosuke Kaji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Masahide Enomoto
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Yuki Fujimoto
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Soichi Takeda
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Yuki Tsuji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Yukihisa Fujinaga
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Hiroaki Takaya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Takemi Akahane
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8521, Japan
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11
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Zhao K, Li X, Zhang M, Tong F, Chen H, Wang X, Xiu N, Liu Z, Wang Y. microRNA-181a Promotes Mitochondrial Dysfunction and Inflammatory Reaction in a Rat Model of Intensive Care Unit-Acquired Weakness by Inhibiting IGFBP5 Expression. J Neuropathol Exp Neurol 2022; 81:553-564. [PMID: 35472240 DOI: 10.1093/jnen/nlac024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study investigated mechanisms by which microRNA (miR)-181a orchestrates mitochondrial dysfunction and inflammation in a rat model of intensive care unit-acquired weakness (ICU-AW). Expression of miR-181a and insulin-like growth factor binding protein 5 (IGFBP5) was detected and then miR-181a was overexpressed or inhibited and IGFBP5 was overexpressed in the ICU-AW rats. The expression of UCP-3, metaphase chromosome protein 1 (MCP1), mitochondrial DNA (mtDNA), inflammatory factors, phosphorylation (p)-JAK1, p-STAT1, and p-STAT2 were measured in skeletal muscle tissues; binding of miR-181a to IGFBP5 was evaluated by a dual-luciferase reporter assay. The results demonstrated high expression of miR-181a and low expression of IGFBP5 in ICU-AW versus control rats; IGFBP5 was identified as a target gene of miR-181a. Further experiments demonstrated that ICU-AW rats suffered from marked loss of grip strength and decreased adenosine triphosphate production, mtDNA content, and UCP-3 mRNA expression in skeletal muscles; this was accompanied by elevated TNF-α, IL-6, IL-1β, MCP1, p-JAK1, p-STAT1, and p-STAT2 levels. Importantly, miR-181a suppression alleviated strength loss, inflammatory reaction, and mitochondrial dysfunction and diminished the phosphorylation levels of JAK1, STAT1, and STAT2 whereas IGFBP5 upregulation rescued the effect of miR-181a overexpression in ICU-AW rats. These results indicate that miR-181a promotes mitochondrial dysfunction and inflammation by activating the JAK/STAT pathway via IGFBP5 in ICU-AW model rats.
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Affiliation(s)
- Kun Zhao
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Xuan Li
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Manli Zhang
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Fei Tong
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Hui Chen
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Xia Wang
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Nan Xiu
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Zhikuan Liu
- Intensive Care Unit, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Yi Wang
- Department of Ultrasound, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China (YW)
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12
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Jiang QY, Lin ZL, Su ZW, Li S, Li J, Guan S, Ling Y, Zhang L. Peptide identification of hepatocyte growth-promoting factor and its function in cytoprotection and promotion of liver cell proliferation through the JAK2/STAT3/c-MYC pathway. Eur J Pharmacol 2022; 920:174832. [DOI: 10.1016/j.ejphar.2022.174832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 11/03/2022]
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Cai S, Duo T, Wang X, Tong X, Luo C, Chen Y, Li J, Mo D. A Comparative Analysis of Metabolic Profiles of Embryonic Skeletal Muscle from Lantang and Landrace Pigs. Animals (Basel) 2022; 12:ani12040420. [PMID: 35203128 PMCID: PMC8868109 DOI: 10.3390/ani12040420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/25/2022] [Accepted: 01/31/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary The pig is one of the most important domesticated meat animals. Some studies have revealed that pigs with low meat production show more intense myogenesis at the early stage of embryonic muscle development than pigs with high meat production. Here, by gas chromatography–mass spectrometry GC–MS based metabolomics, we concluded that the nucleotide metabolism and energy metabolism of the longissimuslumborum (LL) were increased in Lantang pigs compared with Landrace pigs, indicating rapid synthesis of nucleic acids and ATP to meet the material and energy requirements of rapid cell proliferation and differentiation in Lantang pigs. Abstract Elucidation of the complex regulation of porcine muscle development is key to increasing pork output and improving pork quality. However, the molecular mechanisms involved in early porcine embryonic muscle development in different pig breeds remain largely unknown. Here, GC–MS based metabolomics and metabolomic profiling was used to examine the longissimus lumborum (LL) of the Lantang (LT) and the Landrace (LR) pig at embryonic day 35 (E35). Metabolites showed clear separation between LT and LR, with 40 metabolites having higher abundances in LT and 14 metabolites having lower abundances in LT compared with LR. In addition, these metabolic changes were mainly associated with nucleotide metabolism and energy metabolism, such as purine metabolism, pyrimidine metabolism, the pentose phosphate pathway, and the TCA cycle. More interestingly, the contents of DNA, RNA, and ATP per unit mass of LL tissues were higher in LT, indicating rapid synthesis of nucleic acids and ATP, to meet both the material and energy requirements of rapid cell proliferation and differentiation. Furthermore, enzyme activity associated with the TCA cycle and pentose phosphate pathway, including α-ketoglutaric dehydrogenase (KGDH), malate dehydrogenase (MDH), pyruvate dehydrogenase (PDH), succinate dehydrogenase (SDH), and glucose-6-phosphate dehydrogenase (G6PDH), were higher in LT. Based on these results, we conclude that there are significant differences in nucleotide metabolism and energy metabolism of LL between LT and LR, and we speculate that the enhanced nucleic acid metabolism and energy metabolism in LT can meet the material and energy requirements of rapid cell proliferation and differentiation, making myogenesis more intense in LT compared to LR which might be the metabolic mechanism underlying the distinct skeletal muscle development in the two breeds.
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Affiliation(s)
- Shufang Cai
- State Key Laboratory of Livestock and Poultry Breeding & Guangdong Public Laboratory of Animal Breeding and Nutrition & Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China; (S.C.); (C.L.)
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (T.D.); (X.W.); (X.T.); (Y.C.)
| | - Tianqi Duo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (T.D.); (X.W.); (X.T.); (Y.C.)
| | - Xiaoyu Wang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (T.D.); (X.W.); (X.T.); (Y.C.)
| | - Xian Tong
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (T.D.); (X.W.); (X.T.); (Y.C.)
| | - Chenglong Luo
- State Key Laboratory of Livestock and Poultry Breeding & Guangdong Public Laboratory of Animal Breeding and Nutrition & Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China; (S.C.); (C.L.)
| | - Yaosheng Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (T.D.); (X.W.); (X.T.); (Y.C.)
| | - Jianhao Li
- State Key Laboratory of Livestock and Poultry Breeding & Guangdong Public Laboratory of Animal Breeding and Nutrition & Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China; (S.C.); (C.L.)
- Correspondence: (J.L.); (D.M.); Tel.: +86-020-38765361 (J.L.); +86-020-39332991 (D.M.)
| | - Delin Mo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (T.D.); (X.W.); (X.T.); (Y.C.)
- Correspondence: (J.L.); (D.M.); Tel.: +86-020-38765361 (J.L.); +86-020-39332991 (D.M.)
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14
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Interconnections between Inflammageing and Immunosenescence during Ageing. Cells 2022; 11:cells11030359. [PMID: 35159168 PMCID: PMC8834134 DOI: 10.3390/cells11030359] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/13/2022] [Accepted: 01/15/2022] [Indexed: 02/04/2023] Open
Abstract
Acute inflammation is a physiological response to injury or infection, with a cascade of steps that ultimately lead to the recruitment of immune cells to clear invading pathogens and heal wounds. However, chronic inflammation arising from the continued presence of the initial trigger, or the dysfunction of signalling and/or effector pathways, is harmful to health. While successful ageing in older adults, including centenarians, is associated with low levels of inflammation, elevated inflammation increases the risk of poor health and death. Hence inflammation has been described as one of seven pillars of ageing. Age-associated sterile, chronic, and low-grade inflammation is commonly termed inflammageing-it is not simply a consequence of increasing chronological age, but is also a marker of biological ageing, multimorbidity, and mortality risk. While inflammageing was initially thought to be caused by "continuous antigenic load and stress", reports from the last two decades describe a much more complex phenomenon also involving cellular senescence and the ageing of the immune system. In this review, we explore some of the main sources and consequences of inflammageing in the context of immunosenescence and highlight potential interventions. In particular, we assess the contribution of cellular senescence to age-associated inflammation, identify patterns of pro- and anti-inflammatory markers characteristic of inflammageing, describe alterations in the ageing immune system that lead to elevated inflammation, and finally assess the ways that diet, exercise, and pharmacological interventions can reduce inflammageing and thus, improve later life health.
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15
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Ueno M, Maeshige N, Hirayama Y, Yamaguchi A, Ma X, Uemura M, Kondo H, Fujino H. Pulsed ultrasound prevents lipopolysaccharide-induced muscle atrophy through inhibiting p38 MAPK phosphorylation in C2C12 myotubes. Biochem Biophys Res Commun 2021; 570:184-190. [PMID: 34293592 DOI: 10.1016/j.bbrc.2021.07.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/01/2021] [Accepted: 07/09/2021] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Inflammation contributes to skeletal muscle atrophy via protein degradation induced by p38 mitogen-activated protein kinase (MAPK) phosphorylation. Meanwhile, pulsed ultrasound irradiation provides the mechanical stimulation to the target tissue, and has been reported to show anti-inflammatory effects. This study investigated the preventive effects of pulsed ultrasound irradiation on muscle atrophy induced by lipopolysaccharide (LPS) in C2C12 myotubes. METHODS C2C12 myotubes were used in this research. The pulsed ultrasound (a frequency of 3 MHz, duty cycle of 20%, intensity of 0.5 W/cm2) was irradiated to myotube before LPS administration. RESULTS The LPS increased phosphorylation of p38 MAPK and decreased the myofibril and myosin heavy chain protein (P < 0.05), followed by atrophy in C2C12 myotubes. The pulsed ultrasound irradiation attenuated p38 MAPK phosphorylation and myotube atrophy induced by LPS (P < 0.05). CONCLUSIONS Pulsed ultrasound irradiation has the preventive effects on inflammation-induced muscle atrophy through inhibiting phosphorylation of p38 MAPK.
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Affiliation(s)
- Mizuki Ueno
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Noriaki Maeshige
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Yusuke Hirayama
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Atomu Yamaguchi
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Xiaoqi Ma
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Mikiko Uemura
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Hiroyo Kondo
- Department of Food Science and Nutrition, Nagoya Women's University, Japan
| | - Hidemi Fujino
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan.
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16
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Nutraceuticals in the Prevention and Treatment of the Muscle Atrophy. Nutrients 2021; 13:nu13061914. [PMID: 34199575 PMCID: PMC8227811 DOI: 10.3390/nu13061914] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 12/15/2022] Open
Abstract
Imbalance of protein homeostasis, with excessive protein degradation compared with protein synthesis, leads to the development of muscle atrophy resulting in a decrease in muscle mass and consequent muscle weakness and disability. Potential triggers of muscle atrophy include inflammation, malnutrition, aging, cancer, and an unhealthy lifestyle such as sedentariness and high fat diet. Nutraceuticals with preventive and therapeutic effects against muscle atrophy have recently received increasing attention since they are potentially more suitable for long-term use. The implementation of nutraceutical intervention might aid in the development and design of precision medicine strategies to reduce the burden of muscle atrophy. In this review, we will summarize the current knowledge on the importance of nutraceuticals in the prevention of skeletal muscle mass loss and recovery of muscle function. We also highlight the cellular and molecular mechanisms of these nutraceuticals and their possible pharmacological use, which is of great importance for the prevention and treatment of muscle atrophy.
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17
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Koyama S, Yamashita A, Matsuura Y, Saito Y, Maekawa K, Gi T, Kitamura K, Asada Y. Intracellular glutamine level determines vascular smooth muscle cell-derived thrombogenicity. Atherosclerosis 2021; 328:62-73. [PMID: 34102425 DOI: 10.1016/j.atherosclerosis.2021.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 04/28/2021] [Accepted: 05/19/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS The everolimus-eluting stent (EES), one of the effective stents for in-stent restenosis (ISR), has a lower incidence of stent thrombosis; however, the underlying mechanism remains unknown. This study aimed to identify the effects of everolimus on vascular metabolism and thrombogenicity and examine their mechanistic link. METHODS EESs and bare-metal stents were implanted in rabbit iliac arteries with smooth muscle cell (SMC)-rich neointima induced by endothelial denudation. Four weeks after stent implantation, the stented arteries were examined for histological analysis and metabolomics. Additionally, everolimus effects in coronary artery SMCs metabolism, tissue factor (TF) expression, and procoagulant activity were assessed in vitro. RESULTS EES-implanted arteries showed decreased neointima formation, less SMCs infiltration, and reduced TF expression. Concomitantly, they were metabolically characterized by increased levels of metabolites in amino acids, such as glutamine. Similarly, everolimus increased intracellular glutamine levels, decreased TF expression, and reduced procoagulant activity in SMCs in vitro. On the contrary, exogenous glutamine administration also increased intracellular glutamine level, decreased TF expression, and reduced procoagulant activity despite enhanced mammalian target of rapamycin (mTOR) activity. CONCLUSIONS Intracellular glutamine level is likely to determine vascular SMC-related thrombogenicity regardless of mTOR pathway activity. Therefore, increased intracellular glutamine level might contribute partially to the beneficial effect of EES use on stent thrombosis.
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Affiliation(s)
- Shohei Koyama
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Japan; Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Japan
| | - Atsushi Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Japan
| | - Yunosuke Matsuura
- Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Japan
| | - Yusuke Saito
- Department of Pediatrics, Faculty of Medicine, University of Miyazaki, Japan
| | - Kazunari Maekawa
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Japan
| | - Toshihiro Gi
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Japan
| | - Kazuo Kitamura
- Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Japan
| | - Yujiro Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Japan.
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18
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Implication of the NLRP3 Inflammasome in Bovine Age-Related Sarcopenia. Int J Mol Sci 2021; 22:ijms22073609. [PMID: 33808510 PMCID: PMC8036417 DOI: 10.3390/ijms22073609] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/18/2021] [Accepted: 03/29/2021] [Indexed: 12/20/2022] Open
Abstract
Sarcopenia is defined as the age-related loss of skeletal muscle mass, quality, and strength. The pathophysiological mechanisms underlying sarcopenia are still not completely understood. The aim of this work was to evaluate, for the first time, the expression of NLRP3 inflammasome in bovine skeletal muscle in order to investigate the hypothesis that inflammasome activation may trigger and sustain a pro-inflammatory environment leading to sarcopenia. Samples of skeletal muscle were collected from 60 cattle belonging to three age-based groups. Morphologic, immunohistochemical and molecular analysis were performed to assess the presence of age-related pathologic changes and chronic inflammation, the expression of NLRP3 inflammasome and to determine the levels of interleukin-1β, interleukin-18 and tumor necrosis factor alpha in muscle tissue. Our results revealed the presence of morphologic sarcopenia hallmark, chronic lymphocytic inflammation and a type II fibers-selective NLRP3 expression associated to a significant decreased number of immunolabeled-fibers in aged animals. Moreover, we found a statistically significant age-related increase of pro-inflammatory cytokines such as interleukin-1β and interleukin-18 suggesting the activation of NLRP3 inflammasome. Taken together, our data suggest that NLRP3 inflammasome components may be normally expressed in skeletal muscle, but its priming and activation during aging may contribute to enhance a pro-inflammatory environment altering normal muscular anabolism and metabolism.
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19
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Yang W, Huang J, Wu H, Wang Y, Du Z, Ling Y, Wang W, Wu Q, Gao W. Molecular mechanisms of cancer cachexia‑induced muscle atrophy (Review). Mol Med Rep 2020; 22:4967-4980. [PMID: 33174001 PMCID: PMC7646947 DOI: 10.3892/mmr.2020.11608] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 09/09/2020] [Indexed: 12/20/2022] Open
Abstract
Muscle atrophy is a severe clinical problem involving the loss of muscle mass and strength that frequently accompanies the development of numerous types of cancer, including pancreatic, lung and gastric cancers. Cancer cachexia is a multifactorial syndrome characterized by a continuous decline in skeletal muscle mass that cannot be reversed by conventional nutritional therapy. The pathophysiological characteristic of cancer cachexia is a negative protein and energy balance caused by a combination of factors, including reduced food intake and metabolic abnormalities. Numerous necessary cellular processes are disrupted by the presence of abnormal metabolites, which mediate several intracellular signaling pathways and result in the net loss of cytoplasm and organelles in atrophic skeletal muscle during various states of cancer cachexia. Currently, the clinical morbidity and mortality rates of patients with cancer cachexia are high. Once a patient enters the cachexia phase, the consequences are difficult to reverse and the treatment methods for cancer cachexia are very limited. The present review aimed to summarize the recent discoveries regarding the pathogenesis of cancer cachexia-induced muscle atrophy and provided novel ideas for the comprehensive treatment to improve the prognosis of affected patients.
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Affiliation(s)
- Wei Yang
- Department of Oncology, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518000, P.R. China
| | - Jianhui Huang
- Department of Oncology, Lishui Municipal Central Hospital, Lishui, Zhejiang 323000, P.R. China
| | - Hui Wu
- Department of Clinical Medicine, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China
| | - Yuqing Wang
- Department of Clinical Medicine, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China
| | - Zhiyin Du
- Department of Clinical Medicine, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China
| | - Yuanbo Ling
- Department of Clinical Medicine, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China
| | - Weizhuo Wang
- Department of Clinical Medicine, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China
| | - Qian Wu
- Department of Oncology, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518000, P.R. China
| | - Wenbin Gao
- Department of Oncology, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518000, P.R. China
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20
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Zielińska-Górska M, Hotowy A, Wierzbicki M, Bałaban J, Sosnowska M, Jaworski S, Strojny B, Chwalibog A, Sawosz E. Graphene oxide nanofilm and the addition of L-glutamine can promote development of embryonic muscle cells. J Nanobiotechnology 2020; 18:76. [PMID: 32414365 PMCID: PMC7229609 DOI: 10.1186/s12951-020-00636-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/12/2020] [Indexed: 12/19/2022] Open
Abstract
Background Formation of muscular pseudo-tissue depends on muscle precursor cells, the extracellular matrix (ECM)-mimicking structure and factors stimulating cell differentiation. These three things cooperate and can create a tissue-like structure, however, their interrelationships are relatively unknown. The objective was to study the interaction between surface properties, culture medium composition and heterogeneous cell culture. We would like to demonstrate that changing the surface properties by coating with graphene oxide nanofilm (nGO) can affect cell behaviour and especially their need for the key amino acid l-glutamine (L-Glu). Results Chicken embryo muscle cells and their precursors, cultured in vitro, were used as the experimental model. The mesenchymal stem cell, collected from the hind limb of the chicken embryo at day 8 were divided into 4 groups; the control group and groups treated with nGO, L-Glu and nGO supplied with L-Glu (nGOxL-Glu). The roughness of the surface of the plastic plate covered with nGO was much lower than a standard plate. The test of nGO biocompatibility demonstrated that the cells were willing to settle on the nGO without any toxic effects. Moreover, nGO by increasing hydrophilicity and reducing roughness and presumably through chemical bonds available on the GO surface stimulated the colonisation of primary stromal cells that promote embryonic satellite cells. The viability significantly increased in cells cultured on nGOxL-Glu. Observations of cell morphology showed that the most mature state of myogenesis was characteristic for the group nGOxL-Glu. This result was confirmed by increasing the expression of MYF5 genes at mRNA and protein levels. nGO also increased the expression of MYF5 and also very strongly the expression of PAX7 at mRNA and protein levels. However, when analysing the expression of PAX7, a positive link was observed between the nGO surface and the addition of L-Glu. Conclusions The use of nGO and L-Glu supplement may improve myogenesis and also the myogenic potential of myocytes and their precursors by promoting the formation of satellite cells. Studies have, for the first time, demonstrated positive cooperation between surface properties nGO and L-Glu supplementation to the culture medium regarding the myogenic potential of cells involved in muscle formation.![]()
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Affiliation(s)
- Marlena Zielińska-Górska
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Anna Hotowy
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Mateusz Wierzbicki
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Jaśmina Bałaban
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Malwina Sosnowska
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Sławomir Jaworski
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - Barbara Strojny
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
| | - André Chwalibog
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1870, Frederiksberg, Denmark.
| | - Ewa Sawosz
- Department of Nanobiotechnology and Experimental Ecology, Institute of Biology, Warsaw University of Life Sciences, 02-787, Warsaw, Poland
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21
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Rezuş E, Burlui A, Cardoneanu A, Rezuş C, Codreanu C, Pârvu M, Rusu Zota G, Tamba BI. Inactivity and Skeletal Muscle Metabolism: A Vicious Cycle in Old Age. Int J Mol Sci 2020; 21:ijms21020592. [PMID: 31963330 PMCID: PMC7014434 DOI: 10.3390/ijms21020592] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/19/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Aging is an inevitable and gradually progressive process affecting all organs and systems. The musculoskeletal system makes no exception, elderly exhibit an increased risk of sarcopenia (low muscle mass),dynapenia (declining muscle strength), and subsequent disability. Whereas in recent years the subject of skeletal muscle metabolic decline in the elderly has been gathering interest amongst researchers, as well as medical professionals, there are many challenges yet to be solved in order to counteract the effects of aging on muscle function efficiently. Noteworthy, it has been shown that aging individuals exhibit a decline in skeletal muscle metabolism, a phenomenon which may be linked to a number of predisposing (risk) factors such as telomere attrition, epigenetic changes, mitochondrial dysfunction, sedentary behavior (leading to body composition alterations), age-related low-grade systemic inflammation (inflammaging), hormonal imbalance, as well as a hypoproteic diet (unable to counterbalance the repercussions of the age-related increase in skeletal muscle catabolism). The present review aims to discuss the relationship between old age and muscle wasting in an effort to highlight the modifications in skeletal muscle metabolism associated with aging and physical activity.
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Affiliation(s)
- Elena Rezuş
- Department of Rheumatology and Physiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaşi, Romania; (E.R.); (A.C.)
| | - Alexandra Burlui
- Department of Rheumatology and Physiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaşi, Romania; (E.R.); (A.C.)
- Correspondence:
| | - Anca Cardoneanu
- Department of Rheumatology and Physiotherapy, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaşi, Romania; (E.R.); (A.C.)
| | - Ciprian Rezuş
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaşi, Romania;
| | - Cătălin Codreanu
- Center for Rheumatic Diseases, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
| | - Mirela Pârvu
- Department of Rheumatology and Physiotherapy,“George Emil Palade” University of Medicine, Pharmacy, Science and Technology, 540139 Târgu Mureş, Romania;
| | - Gabriela Rusu Zota
- Department of Pharmacology, Clinical Pharmacology and Algesiology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iaşi, Romania;
| | - Bogdan Ionel Tamba
- Advanced Center for Research and Development in Experimental Medicine (CEMEX), “Grigore T. Popa” University of Medicine and Pharmacy, 700454 Iaşi, Romania;
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22
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Ma W, Zhang R, Huang Z, Zhang Q, Xie X, Yang X, Zhang Q, Liu H, Ding F, Zhu J, Sun H. PQQ ameliorates skeletal muscle atrophy, mitophagy and fiber type transition induced by denervation via inhibition of the inflammatory signaling pathways. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:440. [PMID: 31700876 DOI: 10.21037/atm.2019.08.101] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background Skeletal muscle atrophy involves and requires widespread changes in skeletal muscle gene expression and signaling pathway, resulting in excessive loss of muscle mass and strength, which is associated with poor prognosis and the decline of life quality in several diseases. However, the treatment of skeletal muscle atrophy remains an unresolved challenge to this day. The aim of the present study was to investigate the influence of pyrroloquinoline quinone (PQQ), a redox-active o-quinone found in various foods and mammalian tissues, on skeletal muscle atrophy, and to explore the underlying molecular mechanism. Methods After denervation, mice were injected intraperitoneally with saline plus PQQ (5 mg/kg/d) or saline only for 14 days. The level of inflammatory cytokines in tibialis anterior (TA) muscles was determined by quantitative real-time polymerase chain reaction (qRT-PCR) and enzyme-linked immunosorbent assay (ELISA), and the level of signaling proteins of Janus kinase 2/signal transduction and activator of transcription 3 (Jak2/STAT3), TGF-β1/Smad3, JNK/p38 MAPK, and nuclear factor κB (NF-κB) signaling pathway were detected by Western blot. The skeletal muscle atrophy was evaluated by muscle wet weight ratio and cross-sectional areas (CSAs) of myofibers. The mitophagy was observed through transmission electron microscopy (TEM) analysis, and muscle fiber type transition was analyzed through fast myosin skeletal heavy chain antibody staining. Results The proinflammatory cytokines IL-6, IL-1β and TNF-α were largely induced in TA muscles after sciatic nerve transection. PQQ can significantly reverse this phenomenon, as evidenced by the decreased levels of proinflammatory cytokines IL-6, IL-1β and TNF-α. Moreover, PQQ could significantly attenuate the signal activation of Jak2/STAT3, TGF-β1/Smad3, JNK/p38 MAPK, and NF-κB in skeletal muscles after sciatic nerve transection. Furthermore, PQQ alleviated skeletal muscle atrophy, mitigated mitophagy and inhibited slow-to-fast muscle fiber type transition. Conclusions These results suggested that PQQ could attenuate denervation-induced skeletal muscle atrophy, mitophagy and fiber type transition through suppressing the Jak2/STAT3, TGF-β1/Smad3, JNK/p38 MAPK, and NF-κB signaling pathways.
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Affiliation(s)
- Wenjing Ma
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Ru Zhang
- Department of Imaging, The Second Affiliated Hospital of Nantong University, Nantong University, Nantong 226001, China
| | - Ziwei Huang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Qiuyu Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Xiaoying Xie
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Xiaoming Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Qi Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Hua Liu
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, Haian 226600, China
| | - Fei Ding
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Jianwei Zhu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
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23
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de Vasconcelos DAA, Giesbertz P, de Souza DR, Vitzel KF, Abreu P, Marzuca-Nassr GN, Fortes MAS, Murata GM, Hirabara SM, Curi R, Daniel H, Pithon-Curi TC. Oral L-glutamine pretreatment attenuates skeletal muscle atrophy induced by 24-h fasting in mice. J Nutr Biochem 2019; 70:202-214. [DOI: 10.1016/j.jnutbio.2019.05.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/23/2019] [Accepted: 05/14/2019] [Indexed: 02/06/2023]
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24
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Seaborne RA, Hughes DC, Turner DC, Owens DJ, Baehr LM, Gorski P, Semenova EA, Borisov OV, Larin AK, Popov DV, Generozov EV, Sutherland H, Ahmetov II, Jarvis JC, Bodine SC, Sharples AP. UBR5 is a novel E3 ubiquitin ligase involved in skeletal muscle hypertrophy and recovery from atrophy. J Physiol 2019; 597:3727-3749. [PMID: 31093990 DOI: 10.1113/jp278073] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/10/2019] [Indexed: 01/03/2023] Open
Abstract
KEY POINTS We have recently identified that a HECT domain E3 ubiquitin ligase, named UBR5, is altered epigenetically (via DNA methylation) after human skeletal muscle hypertrophy, where its gene expression is positively correlated with increasing lean leg mass after training and retraining. In the present study we extensively investigate this novel and uncharacterised E3 ubiquitin ligase (UBR5) in skeletal muscle atrophy, recovery from atrophy and injury, anabolism and hypertrophy. We demonstrated that UBR5 was epigenetically altered via DNA methylation during recovery from atrophy. We also determined that UBR5 was alternatively regulated versus well characterised E3 ligases, MuRF1/MAFbx, at the gene expression level during atrophy, recovery from atrophy and hypertrophy. UBR5 also increased at the protein level during recovery from atrophy and injury, hypertrophy and during human muscle cell differentiation. Finally, in humans, genetic variations of the UBR5 gene were strongly associated with larger fast-twitch muscle fibres and strength/power performance versus endurance/untrained phenotypes. ABSTRACT We aimed to investigate a novel and uncharacterized E3 ubiquitin ligase in skeletal muscle atrophy, recovery from atrophy/injury, anabolism and hypertrophy. We demonstrated an alternate gene expression profile for UBR5 vs. well characterized E3-ligases, MuRF1/MAFbx, where, after atrophy evoked by continuous-low-frequency electrical-stimulation in rats, MuRF1/MAFbx were both elevated, yet UBR5 was unchanged. Furthermore, after recovery of muscle mass post TTX-induced atrophy in rats, UBR5 was hypomethylated and increased at the gene expression level, whereas a suppression of MuRF1/MAFbx was observed. At the protein level, we also demonstrated a significant increase in UBR5 after recovery of muscle mass from hindlimb unloading in both adult and aged rats, as well as after recovery from atrophy evoked by nerve crush injury in mice. During anabolism and hypertrophy, UBR5 gene expression increased following acute loading in three-dimensional bioengineered mouse muscle in vitro, and after chronic electrical stimulation-induced hypertrophy in rats in vivo, without increases in MuRF1/MAFbx. Additionally, UBR5 protein abundance increased following functional overload-induced hypertrophy of the plantaris muscle in mice and during differentiation of primary human muscle cells. Finally, in humans, genetic association studies (>700,000 single nucleotide polymorphisms) demonstrated that the A alleles of rs10505025 and rs4734621 single nucleotide polymorphisms in the UBR5 gene were strongly associated with larger cross-sectional area of fast-twitch muscle fibres and favoured strength/power vs. endurance/untrained phenotypes. Overall, we suggest that: (i) UBR5 comprises a novel E3 ubiquitin ligase that is inversely regulated to MuRF1/MAFbx; (ii) UBR5 is epigenetically regulated; and (iii) UBR5 is elevated at both the gene expression and protein level during recovery from skeletal muscle atrophy and hypertrophy.
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Affiliation(s)
- Robert A Seaborne
- Stem Cells, Ageing and Molecular Physiology Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.,Institute for Science and Technology in Medicine (ISTM), School of Medicine, Keele University, Keele, UK.,Centre for Genomics and Child Health, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - David C Hughes
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Daniel C Turner
- Stem Cells, Ageing and Molecular Physiology Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.,Institute for Science and Technology in Medicine (ISTM), School of Medicine, Keele University, Keele, UK
| | - Daniel J Owens
- Stem Cells, Ageing and Molecular Physiology Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Leslie M Baehr
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Piotr Gorski
- Stem Cells, Ageing and Molecular Physiology Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.,Institute for Science and Technology in Medicine (ISTM), School of Medicine, Keele University, Keele, UK
| | - Ekaterina A Semenova
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Oleg V Borisov
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia.,Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn, Bonn, Germany
| | - Andrey K Larin
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Daniil V Popov
- Laboratory of Exercise Physiology, Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
| | - Edward V Generozov
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
| | - Hazel Sutherland
- Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Ildus I Ahmetov
- Department of Molecular Biology and Genetics, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia.,Laboratory of Molecular Genetics, Kazan State Medical University, Kazan, Russia.,Department of Physical Education, Plekhanov Russian University of Economics, Moscow, Russia.,Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Jonathan C Jarvis
- Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Sue C Bodine
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Adam P Sharples
- Stem Cells, Ageing and Molecular Physiology Unit, Exercise Metabolism and Adaptation Research Group, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.,Institute for Science and Technology in Medicine (ISTM), School of Medicine, Keele University, Keele, UK
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25
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Teixeira FJ, Matias CN, Monteiro CP, Valamatos MJ, Reis JF, Morton RW, Alves F, Sardinha LB, Phillips SM. Leucine metabolites do not attenuate training-induced inflammation in young resistance trained men. J Sports Sci 2019; 37:2037-2044. [PMID: 31079555 DOI: 10.1080/02640414.2019.1617503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Leucine metabolites may reduce training-induced inflammation; however, there is scant evidence for this assertion. We conducted a double-blind randomized controlled pragmatic trial where 40 male participants were allocated into 4 groups: α-hydroxyisocaproic acid group ([α-HICA], n = 10, Fat-free mass [FFM] = 62.0 ± 7.1 kg), β-hydroxy-β-methylbutyrate free acid group ([HMB-FA], n = 11, FFM = 62.7 ± 10.5 kg), calcium β-hydroxy-β-methylbutyrate group ([HMB-Ca], n = 9, FFM = 65.6 ± 10.1 kg) or placebo group ([PLA]; n = 10, FFM = 64.2 ± 5.7 kg). An 8-week whole-body resistance training routine (3 training sessions per week) was employed to induce gains in skeletal-muscle thickness. Skeletal muscle thickness (MT), one repetition maximum (1RM), interleukin-6 (IL-6), high-sensitivity C-reactive protein (hsCRP) and tumour necrosis factor alpha (TNF-α) were assessed at baseline and at the end of weeks 4 and 8. Time-dependent increases were detected from baseline to week 8 for MT (vastus lateralis: p = 0.009; rectus femoris: p = 0.018), 1RM (back squat: α-HICA, 18.5% ± 18.9%; HMB-FA, 23.2% ± 16%; HMB-Ca, 10.5% ± 13.8%; PLA, 19.7% ± 9% and bench press: α-HICA, 13.8% ± 19.1%; HMB-FA, 15.5% ± 9.3%; HMB-Ca, 10% ± 10.4%; PLA, 14.4 ± 11.3%, both p < 0.001), IL-6, hsCRP (both p < 0.001) and TNF-α (p = 0.045). No differences were found between groups at any time point. No leucine metabolite attenuated inflammation during training. Additionally, backwards elimination regressions showed that no circulating inflammatory marker consistently shared variance with the change in any outcome. Using leucine metabolites to modulate inflammation cannot be recommended from the results obtained herein. Furthermore, increases in inflammatory markers, from training, do not correlate with any outcome variable and are likely the result of training adaptations.
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Affiliation(s)
- Filipe J Teixeira
- a Laboratory of Physiology and Biochemistry of Exercise, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal
| | - Catarina N Matias
- a Laboratory of Physiology and Biochemistry of Exercise, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,b Laboratory of Exercise and Health, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,c Center for the Study of Human Performance, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal
| | - Cristina P Monteiro
- a Laboratory of Physiology and Biochemistry of Exercise, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,c Center for the Study of Human Performance, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal
| | - Maria J Valamatos
- c Center for the Study of Human Performance, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,d Neuromuscular research Lab, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal
| | - Joana F Reis
- a Laboratory of Physiology and Biochemistry of Exercise, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,c Center for the Study of Human Performance, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,e Universidade Europeia , Lisboa , Portugal
| | - Robert W Morton
- f Department of Kinesiology , McMaster University , Hamilton , ON , Canada
| | - Francisco Alves
- a Laboratory of Physiology and Biochemistry of Exercise, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,c Center for the Study of Human Performance, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal
| | - Luís B Sardinha
- b Laboratory of Exercise and Health, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal.,c Center for the Study of Human Performance, Faculty of Human Kinetics , Universidade de Lisboa , Cruz Quebrada , Portugal
| | - Stuart M Phillips
- f Department of Kinesiology , McMaster University , Hamilton , ON , Canada
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Kong L, Smith W, Hao D. Overview of RAW264.7 for osteoclastogensis study: Phenotype and stimuli. J Cell Mol Med 2019; 23:3077-3087. [PMID: 30892789 PMCID: PMC6484317 DOI: 10.1111/jcmm.14277] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/13/2019] [Accepted: 02/16/2019] [Indexed: 12/25/2022] Open
Abstract
Bone homeostasis is preserved by the balance of maintaining between the activity of osteogenesis and osteoclastogenesis. However, investigations for the osteoclastogenesis were hampered by considerable difficulties associated with isolating and culturing osteoclast in vivo. As the alternative, stimuli‐induced osteoclasts formation from RAW264.7 cells (RAW‐OCs) have gain its importance for extensively osteoclastogenic study of bone diseases, such as rheumatoid arthritis, osteoporosis, osteolysis and periodontitis. However, considering the RAW‐OCs have not yet been well‐characterized and RAW264.7 cells are polymorphic because of a diverse phenotype of the individual cells comprising this cell linage, and different fate associated with various stimuli contributions. Thus, in present study, we provide an overview for current knowledge of the phenotype of RAW264.7 cells, as well as the current understanding of the complicated interactions between various stimuli and RAW‐OCs in the light of the recent progress.
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Affiliation(s)
- Lingbo Kong
- Department of Spine, School of Medicine, Honghui-hospital, Xi'an Jiaotong University, Xi'an, China
| | - Wanli Smith
- Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland
| | - Dingjun Hao
- Department of Spine, School of Medicine, Honghui-hospital, Xi'an Jiaotong University, Xi'an, China
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27
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Cui P, Shao W, Huang C, Wu CJ, Jiang B, Lin D. Metabolic derangements of skeletal muscle from a murine model of glioma cachexia. Skelet Muscle 2019; 9:3. [PMID: 30635036 PMCID: PMC6330447 DOI: 10.1186/s13395-018-0188-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 12/25/2018] [Indexed: 12/25/2022] Open
Abstract
Background Cachexia is a complex metabolic disorder and muscle atrophy syndrome, impacting 80% patients with advanced cancers. Malignant glioma is considered to be one of the deadliest human cancers, accounting for about 60% of all primary brain tumors. However, cachexia symptoms induced by glioma have received little attention. This work aims to explore skeletal muscle atrophy in orthotopic glioma murine models. Methods BALB/c nude mice were orthotopicly implanted with normal glial (HEB) and glioma (WHO II CHG5 and WHO IV U87) cells. Cachexia symptoms of mice were depicted by phenotypic, histopathologic, physiological, and biochemical analyses. Muscle atrophy-related proteins were examined by western blot, and the involved signaling pathways were analyzed. NMR-based metabolomic analysis was applied to profile metabolic derangements in the skeletal muscle, including multivariate statistical analysis, characteristic metabolite identification, and metabolic pathway analysis. Results Compared with controls, mice implanted with glioma cells exhibit typical cachexia symptoms, indicating a high correlation with the malignant grades of glioma. U87 mice develop cachexia much earlier and more severe than CHG5 mice. The glioma-bearing mice showed significantly decreased skeletal muscle mass and strength, which were associated with suppressed AKT, activated AMPK, FOXO, Atrogin1, and LC3. Interestingly, expressions of MuRF1, MyoD1, and eIF3f were not significantly changed. Consistently, metabolomic analyses elucidate pronounced metabolic derangements in cachectic gastrocnemius relative to controls. Glucose, glycerol, and 3-hydroxybutyrate were remarkably downregulated, whereas glutamate, arginine, leucine, and isoleucine were upregulated in cachectic gastrocnemius. Furthermore, U87 mice showed more characteristic metabolites and more disturbed metabolic pathways including glucose and lipid metabolism, protein catabolism, anabolism, and citric acid cycle anaplerotic. Conclusions This study demonstrates for the first time that the orthotopic glioma murine model developed here exhibits high fidelity of cachexia manifestations in two malignant grades of glioma. Signaling pathway analysis in combination with metabolomic analysis provides significant insights into the complex pathophysiology of glioma cachexia and expands understanding of the molecular mechanisms underlying muscle atrophy. Electronic supplementary material The online version of this article (10.1186/s13395-018-0188-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pengfei Cui
- Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen, 361005, China
| | - Wei Shao
- Department of Pathology, Affiliated Chenggong Hospital of Xiamen University, Xiamen, China
| | - Caihua Huang
- Department of Physical Education, Xiamen University of Technology, 600 Ligong Road, Jimei District, Xiamen, 361024, China.
| | - Chang-Jer Wu
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan
| | - Bin Jiang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Donghai Lin
- Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen, 361005, China.
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28
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Giordano FM, Burattini S, Buontempo F, Canonico B, Martelli AM, Papa S, Sampaolesi M, Falcieri E, Salucci S. Diet Modulation Restores Autophagic Flux in Damaged Skeletal Muscle Cells. J Nutr Health Aging 2019; 23:739-745. [PMID: 31560032 DOI: 10.1007/s12603-019-1245-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Autophagy is a physiological and highly regulated mechanism, crucial for cell homeostasis maintenance. Its impairment seems to be involved in the onset of several diseases, including muscular dystrophies, myopathies and sarcopenia. According to few papers, chemotherapeutic drug treatment is able to trigger side effects on skeletal muscle tissue and, among these, a defective autophagic activation, which leads to the persistence of abnormal organelles within cells and, finally, to myofiber degeneration. The aim of this work is to find a strategy, based on diet modulation, to prevent etoposide-induced damage, in a model of in vitro skeletal muscle cells. METHODS Glutamine supplementation and nutrient deprivation have been chosen as pre-treatments to counteract etoposide effect, a chemotherapeutic drug known to induce oxidative stress and cell death. Cell response has been evaluated by means of morpho-functional, cytofluorimetric and molecular analyses. RESULTS Etoposide treated cells, if compared to control, showed dysfunctional mitochondria presence, ER stress and lysosomal compartment damage, confirmed by molecular investigations. CONCLUSIONS Interestingly, both dietary approaches were able to rescue myofiber from etoposide-induced damage. Glutamine supplementation, in particular, seemed to be a good strategy to preserve cell ultrastructure and functionality, by preventing the autophagic impairment and partially restoring the normal lysosomal activity, thus maintaining skeletal muscle homeostasis.
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Affiliation(s)
- F M Giordano
- Sara Salucci, Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy,
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29
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Obese subcutaneous adipose tissue impairs human myogenesis, particularly in old skeletal muscle, via resistin-mediated activation of NFκB. Sci Rep 2018; 8:15360. [PMID: 30337633 PMCID: PMC6193975 DOI: 10.1038/s41598-018-33840-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/05/2018] [Indexed: 02/02/2023] Open
Abstract
Adiposity and adipokines are implicated in the loss of skeletal muscle mass with age and in several chronic disease states. The aim of this study was to determine the effects of human obese and lean subcutaneous adipose tissue secretome on myogenesis and metabolism in skeletal muscle cells derived from both young (18-30 yr) and elderly (>65 yr) individuals. Obese subcutaneous adipose tissue secretome impaired the myogenesis of old myoblasts but not young myoblasts. Resistin was prolifically secreted by obese subcutaneous adipose tissue and impaired myotube thickness and nuclear fusion by activation of the classical NFκB pathway. Depletion of resistin from obese adipose tissue secretome restored myogenesis. Inhibition of the classical NFκB pathway protected myoblasts from the detrimental effect of resistin on myogenesis. Resistin also promoted intramyocellular lipid accumulation in myotubes and altered myotube metabolism by enhancing fatty acid oxidation and increasing myotube respiration and ATP production. In conclusion, resistin derived from human obese subcutaneous adipose tissue impairs myogenesis of human skeletal muscle, particularly older muscle, and alters muscle metabolism in developing myotubes. These findings may have important implications for the maintenance of muscle mass in older people with chronic inflammatory conditions, or older people who are obese or overweight.
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30
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Asghari Hanjani N, Farsi F, Sepidarkish M, Omidi A, Ardehali SH, Akbari‐Fakhrabadi M, Heshmati J. Effect of supplementation with a combination of
l
‐arginine,
l
‐glutamine, and hydroxy methyl butyrate on cachexia: A systematic review. J Food Biochem 2018. [DOI: 10.1111/jfbc.12636] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Nazanin Asghari Hanjani
- Nutrition Department, School of Public Health Iran University of Medical Sciences Tehran Iran
| | - Farnaz Farsi
- Nutrition Department, School of Public Health Iran University of Medical Sciences Tehran Iran
- Colorectal Research Center Iran University of Medical Sciences Tehran Iran
| | - Mahdi Sepidarkish
- Department of Epidemiology and Reproductive Health Royan Institute for Reproductive Biomedicine, ACECR Tehran Iran
| | | | | | | | - Javad Heshmati
- Songhor Healthcare Center Kermanshah University of Medical Science Kermanshah Iran
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31
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Baker LA, Martin NRW, Kimber MC, Pritchard GJ, Lindley MR, Lewis MP. Resolvin E1 (R
v
E
1
) attenuates LPS induced inflammation and subsequent atrophy in C2C12 myotubes. J Cell Biochem 2018; 119:6094-6103. [DOI: 10.1002/jcb.26807] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/23/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Luke A. Baker
- Translational Chemical Biology Research GroupSchool of Sport Exercise and Health SciencesLoughborough UniversityLoughboroughUnited Kingdom
| | - Neil R. W. Martin
- Translational Chemical Biology Research GroupSchool of Sport Exercise and Health SciencesLoughborough UniversityLoughboroughUnited Kingdom
| | - Marc C. Kimber
- Translational Chemical Biology Research GroupDepartment of Chemistry, School of ScienceLoughborough UniversityLoughboroughUnited Kingdom
| | - Gareth J. Pritchard
- Translational Chemical Biology Research GroupDepartment of Chemistry, School of ScienceLoughborough UniversityLoughboroughUnited Kingdom
| | - Martin R. Lindley
- Translational Chemical Biology Research GroupSchool of Sport Exercise and Health SciencesLoughborough UniversityLoughboroughUnited Kingdom
| | - Mark P. Lewis
- Translational Chemical Biology Research GroupSchool of Sport Exercise and Health SciencesLoughborough UniversityLoughboroughUnited Kingdom
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32
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Sawicka AK, Hartmane D, Lipinska P, Wojtowicz E, Lysiak-Szydlowska W, Olek RA. l-Carnitine Supplementation in Older Women. A Pilot Study on Aging Skeletal Muscle Mass and Function. Nutrients 2018; 10:nu10020255. [PMID: 29473908 PMCID: PMC5852831 DOI: 10.3390/nu10020255] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 02/02/2018] [Accepted: 02/17/2018] [Indexed: 12/21/2022] Open
Abstract
Skeletal muscle wasting, associated with aging, may be regulated by the inflammatory cytokines as well as by insulin-like growth factor 1 (IGF-1). l-carnitine possesses anti-inflammatory properties and increases plasma IGF-1 concentration, leading to the regulation of the genes responsible for protein catabolism and anabolism. The purpose of the present study was to evaluate the effect of a 24-week l-carnitine supplementation on serum inflammatory markers, IGF-1, body composition and skeletal muscle strength in healthy human subjects over 65 years of age. Women between 65 and 70 years of age were supplemented for 24 weeks with either 1500 mg l-carnitine-l-tartrate or an isonitrogenous placebo per day in a double-blind fashion. Before and after the supplementation protocol, body mass and composition, as well as knee extensor and flexor muscle strength were determined. In the blood samples, free carnitine, interleukin-6, tumor necrosis factor-α, C-reactive protein and IGF-1 were determined. A marked increase in free plasma carnitine concentration was observed due to l-carnitine supplementation. No substantial changes in other parameters were noted. In the current study, supplementation for 24 weeks affected neither the skeletal muscle strength nor circulating markers in healthy women over 65 years of age. Positive and negative aspects of l-carnitine supplementation need to be clarified.
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Affiliation(s)
- Angelika K Sawicka
- Department of Bioenergetics and Nutrition, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland.
| | - Dace Hartmane
- Latvian Institute of Organic Synthesis, LV-1006 Riga, Latvia.
| | - Patrycja Lipinska
- Institute of Physical Culture, Kazimierz Wielki University, 85-091 Bydgoszcz, Poland.
| | - Ewa Wojtowicz
- Department of Anatomy and Anthropology, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland.
| | | | - Robert A Olek
- Department of Bioenergetics and Nutrition, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland.
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33
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Seaborne RA, Strauss J, Cocks M, Shepherd S, O'Brien TD, van Someren KA, Bell PG, Murgatroyd C, Morton JP, Stewart CE, Sharples AP. Human Skeletal Muscle Possesses an Epigenetic Memory of Hypertrophy. Sci Rep 2018; 8:1898. [PMID: 29382913 PMCID: PMC5789890 DOI: 10.1038/s41598-018-20287-3] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/16/2018] [Indexed: 12/25/2022] Open
Abstract
It is unknown if adult human skeletal muscle has an epigenetic memory of earlier encounters with growth. We report, for the first time in humans, genome-wide DNA methylation (850,000 CpGs) and gene expression analysis after muscle hypertrophy (loading), return of muscle mass to baseline (unloading), followed by later hypertrophy (reloading). We discovered increased frequency of hypomethylation across the genome after reloading (18,816 CpGs) versus earlier loading (9,153 CpG sites). We also identified AXIN1, GRIK2, CAMK4, TRAF1 as hypomethylated genes with enhanced expression after loading that maintained their hypomethylated status even during unloading where muscle mass returned to control levels, indicating a memory of these genes methylation signatures following earlier hypertrophy. Further, UBR5, RPL35a, HEG1, PLA2G16, SETD3 displayed hypomethylation and enhanced gene expression following loading, and demonstrated the largest increases in hypomethylation, gene expression and muscle mass after later reloading, indicating an epigenetic memory in these genes. Finally, genes; GRIK2, TRAF1, BICC1, STAG1 were epigenetically sensitive to acute exercise demonstrating hypomethylation after a single bout of resistance exercise that was maintained 22 weeks later with the largest increase in gene expression and muscle mass after reloading. Overall, we identify an important epigenetic role for a number of largely unstudied genes in muscle hypertrophy/memory.
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Affiliation(s)
- Robert A Seaborne
- Institute for Science and Technology in Medicine (ISTM), School of Medicine, Keele University, Staffordshire, United Kingdom.,Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Juliette Strauss
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Matthew Cocks
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Sam Shepherd
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Thomas D O'Brien
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Ken A van Someren
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Phillip G Bell
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Christopher Murgatroyd
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - James P Morton
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Claire E Stewart
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Adam P Sharples
- Institute for Science and Technology in Medicine (ISTM), School of Medicine, Keele University, Staffordshire, United Kingdom. .,Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom.
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34
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Dugdale HF, Hughes DC, Allan R, Deane CS, Coxon CR, Morton JP, Stewart CE, Sharples AP. The role of resveratrol on skeletal muscle cell differentiation and myotube hypertrophy during glucose restriction. Mol Cell Biochem 2017; 444:109-123. [PMID: 29189984 PMCID: PMC6002440 DOI: 10.1007/s11010-017-3236-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/24/2017] [Indexed: 12/01/2022]
Abstract
Glucose restriction (GR) impairs muscle cell differentiation and evokes myotube atrophy. Resveratrol treatment in skeletal muscle cells improves inflammatory-induced reductions in skeletal muscle cell differentiation. We therefore hypothesised that resveratrol treatment would improve muscle cell differentiation and myotube hypertrophy in differentiating C2C12 myoblasts and mature myotubes during GR. Glucose restriction at 0.6 g/L (3.3 mM) blocked differentiation and myotube hypertrophy versus high-glucose (4.5 g/L or 25 mM) differentiation media (DM) conditions universally used for myoblast culture. Resveratrol (10 µM) treatment increased SIRT1 phosphorylation in DM conditions, yet did not improve differentiation when administered to differentiating myoblasts in GR conditions. Resveratrol did evoke increases in hypertrophy of mature myotubes under DM conditions with corresponding elevated Igf-I and Myhc7 gene expression, coding for the ‘slow’ type I MYHC protein isoform. Inhibition of SIRT1 via EX-527 administration (100 nM) also reduced myotube diameter and area in DM conditions and resulted in lower gene expression of Myhc 1, 2 and 4 coding for ‘intermediate’ and ‘faster’ IIx, IIa and IIb protein isoforms, respectively. Resveratrol treatment did not appear to modulate phosphorylation of energy-sensing protein AMPK or protein translation initiator P70S6K. Importantly, in mature myotubes, resveratrol treatment was able to ameliorate reduced myotube growth in GR conditions over an acute 24-h period, but not over 48–72 h. Overall, resveratrol evoked myotube hypertrophy in DM conditions while favouring ‘slower’ Myhc gene expression and acutely ameliorated impaired myotube growth observed during glucose restriction.
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Affiliation(s)
- Hannah F Dugdale
- Stem Cells, Ageing and Molecular Physiology Research (SCAMP) Unit, Exercise Metabolism and Adaptation Research Group (EMARG), Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, UK
| | - David C Hughes
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Carver College of Medicine, University of Iowa, Iowa City, IA, 52246, USA
| | - Robert Allan
- Centre for Applied Sport and Exercise Sciences, University of Central Lancashire, Preston, UK
| | - Colleen S Deane
- Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Christopher R Coxon
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - James P Morton
- Stem Cells, Ageing and Molecular Physiology Research (SCAMP) Unit, Exercise Metabolism and Adaptation Research Group (EMARG), Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, UK
| | - Claire E Stewart
- Stem Cells, Ageing and Molecular Physiology Research (SCAMP) Unit, Exercise Metabolism and Adaptation Research Group (EMARG), Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, UK
| | - Adam P Sharples
- Institute for Science and Technology in Medicine (ISTM), School of Medicine, Keele University, The Guy Hilton Research Centre, Thornburrow Drive, Hartshill, Staffordshire, ST4 7QB, UK. .,Stem Cells, Ageing and Molecular Physiology Research (SCAMP) Unit, Exercise Metabolism and Adaptation Research Group (EMARG), Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, UK.
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35
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Franz A, Queitsch FP, Behringer M, Mayer C, Krauspe R, Zilkens C. Blood flow restriction training as a prehabilitation concept in total knee arthroplasty: A narrative review about current preoperative interventions and the potential impact of BFR. Med Hypotheses 2017; 110:53-59. [PMID: 29317069 DOI: 10.1016/j.mehy.2017.10.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 10/28/2017] [Indexed: 01/09/2023]
Abstract
Osteoarthritis of the knee is one of the most commonly diagnosed joint ailments and responsible for increased rates of total knee arthroplasty surgeries worldwide. Whereas the surgical approach is able to diminish the perceived knee pain of concerned patients', the postoperative recovery is often accompanied by persistent skeletal muscle dysfunctions and atrophy, which is responsible for functional deficits for up to several years. Recent findings indicate that surgery induced adverse effects on skeletal muscles are largely associated with the use of pneumatic tourniquets, wherefore several studies try to reduce tourniquet use in orthopedic surgery. However, due to comparable incidence of muscle impairment and increased surgical challenge, the most frequently applied surgical technique in TKA is still associated with the use of tourniquets. When attenuating TKA induced adverse effects, the preoperative preparation of patients by specific exercises (called prehabilitation) was able to enhance preoperative overall fitness through associated accelerated recovery. Based on patients' limited functional activity, prehabilitation techniques have to be particularly designed to allow regular adherence. The present paper is based on a narrative review of current literature, and provides a novel hypothesis by which blood flow restriction exercises (BFR) are able to improve patients' compliance to prehabilitation. BFR training is characterized by the application of low-resistance exercise with similar intensities as daily living tasks in association with a suppression of venous blood flow in an extremity, achieving significant morphological and neuromuscular adaptations in skeletal muscles. In addition, preoperative enhancements in muscle health with corresponding benefits in overall fitness, BFR induced molecular alterations could also be able to interfere with TKA induced pathological signaling. Therefore, based on the known major impact of BFR on skeletal muscle physiology, the present paper aims to illustrate the potential beneficial impact of BFR training as a prehabilitation concept to promote patients regular adherence to preoperative exercises and thus achieve an accelerated recovery and increases in patients' satisfaction.
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Affiliation(s)
- Alexander Franz
- Department of Orthopedics, University Hospital Duesseldorf, Duesseldorf, Germany.
| | | | - Michael Behringer
- Faculty of Sport Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Constantin Mayer
- Department of Orthopedics, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Rüdiger Krauspe
- Department of Orthopedics, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Christoph Zilkens
- Department of Orthopedics, University Hospital Duesseldorf, Duesseldorf, Germany
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36
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Wang J, Leung KS, Chow SKH, Cheung WH. Inflammation and age-associated skeletal muscle deterioration (sarcopaenia). J Orthop Translat 2017; 10:94-101. [PMID: 29662761 PMCID: PMC5822997 DOI: 10.1016/j.jot.2017.05.006] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/08/2017] [Accepted: 05/09/2017] [Indexed: 12/31/2022] Open
Abstract
Ageing is accompanied by chronic inflammatory responses due to elevated circulatory inflammatory cytokine production. Several inflammatory cytokines have been shown to be responsible for a decrease in muscle mass. However, little is known about the possible relationship between inflammation and sarcopaenia. This review aims to summarise the existing evidence about inflammation and sarcopaenia. Sarcopaenia is defined as an age-related decrease of muscle mass and/or muscle strength; it is caused by multiple factors, such as skeletal muscle atrophy, neuromuscular junction degeneration, hormone imbalance, cytokine imbalance, protein synthesis and proteolysis. Several inflammatory cytokines have been considered to promote muscle loss; C-reactive protein levels are significantly upregulated in sarcopaenia and sarcopenic obesity, and high levels of interleukin-6 are associated with reduced muscle mass and muscle strength (the administration of interleukin-6 could lead to a reduction in muscle mass). Up-regulation of tumour necrosis factor-α expression is also related to the development of sarcopaenia. Signalling pathways, such as protein kinase B/mammalian target of rapamycin, Janus kinase/signal transducer and activator of transcription-5 and signal transducer and activator of transcription 3 signalling, involved in muscle metabolism are regulated by insulin-like growth factor-1, tumour necrosis factor-α and interleukin-6 respectively. In conclusion, the inflammatory cytokines produced during chronic inflammation due to ageing, may influence their respective related pathways, thus leading to age-related muscle deterioration. The translational potential of this article This review can provide more information for sarcopaenia medicine research in terms of anti-inflammation therapy.
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Affiliation(s)
- Jinyu Wang
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Kwok-Sui Leung
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Simon Kwoon-Ho Chow
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, PR China
| | - Wing-Hoi Cheung
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, PR China
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37
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Miki A, Hashimoto Y, Matsumoto S, Ushigome E, Fukuda T, Sennmaru T, Tanaka M, Yamazaki M, Fukui M. Protein Intake, Especially Vegetable Protein Intake, Is Associated with Higher Skeletal Muscle Mass in Elderly Patients with Type 2 Diabetes. J Diabetes Res 2017; 2017:7985728. [PMID: 29209633 PMCID: PMC5676451 DOI: 10.1155/2017/7985728] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/20/2017] [Accepted: 10/04/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND/AIMS Protein intake is important for maintaining muscle mass in general population. However, it remains to be elucidated the association between dietary protein intake and skeletal muscle mass in elderly patients with type 2 diabetes. METHODS In this cross-sectional study of 168 elderly patients with type 2 diabetes, we investigated the relationship between skeletal muscle index (SMI) and protein intake. Bioimpedance analysis was used for measurement for skeletal muscle mass (kg) and SMI (%), which was defined as skeletal muscle mass (kg)/total body weight (kg) × 100. Habitual food and nutrient intake were estimated by a questionnaire. RESULTS Protein intake was independently correlated with SMI after adjusting for age, hemoglobin A1c, C-peptide index, exercise, smoking, insulin treatment, total energy intake, and C-reactive protein (standardized regression coefficient = 0.664, P < 0.001 in men and standardized regression coefficient = 0.516, P = 0.005 in women). Additionally, the animal protein to vegetable protein ratio was negatively correlated with SMI after adjusting for covariates in men (standardized regression coefficient = -0.339, P = 0.005). CONCLUSIONS We found that total protein intake, especially vegetable protein intake, was positively associated with skeletal muscle mass in elderly patients with type 2 diabetes.
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Affiliation(s)
- Akane Miki
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Yoshitaka Hashimoto
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Shinobu Matsumoto
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Emi Ushigome
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Takuya Fukuda
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Takafumi Sennmaru
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Muhei Tanaka
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Masahiro Yamazaki
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
| | - Michiaki Fukui
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine Graduate School of Medical Science, Kyoto, Japan
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38
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Le Plénier S, Goron A, Sotiropoulos A, Archambault E, Guihenneuc C, Walrand S, Salles J, Jourdan M, Neveux N, Cynober L, Moinard C. Citrulline directly modulates muscle protein synthesis via the PI3K/MAPK/4E-BP1 pathway in a malnourished state: evidence from in vivo, ex vivo, and in vitro studies. Am J Physiol Endocrinol Metab 2017; 312:E27-E36. [PMID: 27827806 DOI: 10.1152/ajpendo.00203.2016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/13/2016] [Accepted: 10/18/2016] [Indexed: 12/16/2022]
Abstract
Citrulline (CIT) is an endogenous amino acid produced by the intestine. Recent literature has consistently shown CIT to be an activator of muscle protein synthesis (MPS). However, the underlying mechanism is still unknown. Our working hypothesis was that CIT might regulate muscle homeostasis directly through the mTORC1/PI3K/MAPK pathways. Because CIT undergoes both interorgan and intraorgan trafficking and metabolism, we combined three approaches: in vivo, ex vivo, and in vitro. Using a model of malnourished aged rats, CIT supplementation activated the phosphorylation of S6K1 and 4E-BP1 in muscle. Interestingly, the increase in S6K1 phosphorylation was positively correlated (P < 0.05) with plasma CIT concentration. In a model of isolated incubated skeletal muscle from malnourished rats, CIT enhanced MPS (from 30 to 80% CIT vs. Ctrl, P < 0.05), and the CIT effect was abolished in the presence of wortmannin, rapamycin, and PD-98059. In vitro, on myotubes in culture, CIT led to a 2.5-fold increase in S6K1 phosphorylation and a 1.5-fold increase in 4E-BP1 phosphorylation. Both rapamycin and PD-98059 inhibited the CIT effect on S6K1, whereas only LY-294002 inhibited the CIT effect on both S6K1 and 4E-BP1. These findings show that CIT is a signaling agent for muscle homeostasis, suggesting a new role of the intestine in muscle mass control.
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Affiliation(s)
- Servane Le Plénier
- Laboratoire de Biologie de la Nutrition, EA4466, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France;
| | - Arthur Goron
- Laboratoire de Biologie de la Nutrition, EA4466, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
| | - Athanassia Sotiropoulos
- Centre National de la Recherche Scientifique UMR 8104, Institut Cochin, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
| | - Eliane Archambault
- Laboratoire de Biologie de la Nutrition, EA4466, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
| | - Chantal Guihenneuc
- Laboratoire d'épidémiologie environnementale, EA 4064, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
| | - Stéphane Walrand
- Unité de Nutrition humaine, UMR 1019, Institut National de la Recherche Agronomique/Université d'Auvergne, Centre de Recherche en Nutrition Humaine, Auvergne, Clermont-Ferrand, France; and
| | - Jérome Salles
- Unité de Nutrition humaine, UMR 1019, Institut National de la Recherche Agronomique/Université d'Auvergne, Centre de Recherche en Nutrition Humaine, Auvergne, Clermont-Ferrand, France; and
| | - Marion Jourdan
- Laboratoire de Biologie de la Nutrition, EA4466, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
| | - Nathalie Neveux
- Laboratoire de Biologie de la Nutrition, EA4466, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
| | - Luc Cynober
- Laboratoire de Biologie de la Nutrition, EA4466, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
- Service de Biochimie interhospitalier Cochin et Hôtel-Dieu, GH Hôpitaux universitaire Paris Centre, AP-HP, Paris, France
| | - Christophe Moinard
- Laboratoire de Biologie de la Nutrition, EA4466, Faculté de Pharmacie, Université Paris Descartes, Sorbonne-Paris-Cité, Paris, France
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39
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MicroRNA-Regulated Proinflammatory Cytokines in Sarcopenia. Mediators Inflamm 2016; 2016:1438686. [PMID: 27382188 PMCID: PMC4921629 DOI: 10.1155/2016/1438686] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/18/2016] [Indexed: 01/06/2023] Open
Abstract
Sarcopenia has been defined as the aging-related disease with the declined mass, strength, and function of skeletal muscle, which is the major cause of frailty and falls in elders. The activation of inflammatory signal pathways due to diseases and aging is suggested to reveal the critical impact on sarcopenia. Several proinflammatory cytokines, especially interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α), play crucial roles in modulation of inflammatory signaling pathway during the aging-related loss of skeletal muscle. MicroRNAs (miRNAs) have emerged as the important regulators for the mass and functional maintenance of skeletal muscle through regulating gene expression of proinflammatory cytokines. In this paper, we have systematically discussed regulatory mechanisms of miRNAs for the expression and secretion of inflammatory cytokines during sarcopenia, which will provide some novel targets and therapeutic strategies for controlling aging-related atrophy of skeletal muscle and corresponding chronic inflammatory diseases.
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