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Baumert P, Mäntyselkä S, Schönfelder M, Heiber M, Jacobs MJ, Swaminathan A, Minderis P, Dirmontas M, Kleigrewe K, Meng C, Gigl M, Ahmetov II, Venckunas T, Degens H, Ratkevicius A, Hulmi JJ, Wackerhage H. Skeletal muscle hypertrophy rewires glucose metabolism: An experimental investigation and systematic review. J Cachexia Sarcopenia Muscle 2024; 15:989-1002. [PMID: 38742477 PMCID: PMC11154753 DOI: 10.1002/jcsm.13468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/06/2024] [Accepted: 03/15/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Proliferating cancer cells shift their metabolism towards glycolysis, even in the presence of oxygen, to especially generate glycolytic intermediates as substrates for anabolic reactions. We hypothesize that a similar metabolic remodelling occurs during skeletal muscle hypertrophy. METHODS We used mass spectrometry in hypertrophying C2C12 myotubes in vitro and plantaris mouse muscle in vivo and assessed metabolomic changes and the incorporation of the [U-13C6]glucose tracer. We performed enzyme inhibition of the key serine synthesis pathway enzyme phosphoglycerate dehydrogenase (Phgdh) for further mechanistic analysis and conducted a systematic review to align any changes in metabolomics during muscle growth with published findings. Finally, the UK Biobank was used to link the findings to population level. RESULTS The metabolomics analysis in myotubes revealed insulin-like growth factor-1 (IGF-1)-induced altered metabolite concentrations in anabolic pathways such as pentose phosphate (ribose-5-phosphate/ribulose-5-phosphate: +40%; P = 0.01) and serine synthesis pathway (serine: -36.8%; P = 0.009). Like the hypertrophy stimulation with IGF-1 in myotubes in vitro, the concentration of the dipeptide l-carnosine was decreased by 26.6% (P = 0.001) during skeletal muscle growth in vivo. However, phosphorylated sugar (glucose-6-phosphate, fructose-6-phosphate or glucose-1-phosphate) decreased by 32.2% (P = 0.004) in the overloaded muscle in vivo while increasing in the IGF-1-stimulated myotubes in vitro. The systematic review revealed that 10 metabolites linked to muscle hypertrophy were directly associated with glycolysis and its interconnected anabolic pathways. We demonstrated that labelled carbon from [U-13C6]glucose is increasingly incorporated by ~13% (P = 0.001) into the non-essential amino acids in hypertrophying myotubes, which is accompanied by an increased depletion of media serine (P = 0.006). The inhibition of Phgdh suppressed muscle protein synthesis in growing myotubes by 58.1% (P < 0.001), highlighting the importance of the serine synthesis pathway for maintaining muscle size. Utilizing data from the UK Biobank (n = 450 243), we then discerned genetic variations linked to the serine synthesis pathway (PHGDH and PSPH) and to its downstream enzyme (SHMT1), revealing their association with appendicular lean mass in humans (P < 5.0e-8). CONCLUSIONS Understanding the mechanisms that regulate skeletal muscle mass will help in developing effective treatments for muscle weakness. Our results provide evidence for the metabolic rewiring of glycolytic intermediates into anabolic pathways during muscle growth, such as in serine synthesis.
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Affiliation(s)
- Philipp Baumert
- School of Medicine and HealthTechnical University of MunichMunichGermany
- Research Institute for Sport and Exercise SciencesLiverpool John Moores UniversityLiverpoolUK
- Research Unit for Orthopaedic Sports Medicine and Injury Prevention (OSMI)UMIT TIROL ‐ Private University for Health Sciences and Health TechnologyInnsbruckAustria
| | - Sakari Mäntyselkä
- Faculty of Sport and Health Sciences, NeuroMuscular Research CenterUniversity of JyväskyläJyväskyläFinland
| | - Martin Schönfelder
- School of Medicine and HealthTechnical University of MunichMunichGermany
| | - Marie Heiber
- School of Medicine and HealthTechnical University of MunichMunichGermany
- Institute of Sport ScienceUniversity of the Bundeswehr MunichNeubibergGermany
| | - Mika Jos Jacobs
- School of Medicine and HealthTechnical University of MunichMunichGermany
| | - Anandini Swaminathan
- Institute of Sport Science and InnovationsLithuanian Sports UniversityKaunasLithuania
| | - Petras Minderis
- Institute of Sport Science and InnovationsLithuanian Sports UniversityKaunasLithuania
| | - Mantas Dirmontas
- Department of Health Promotion and RehabilitationLithuanian Sports UniversityKaunasLithuania
| | - Karin Kleigrewe
- Bavarian Center for Biomolecular Mass SpectrometryTechnical University of MunichMunichGermany
| | - Chen Meng
- Bavarian Center for Biomolecular Mass SpectrometryTechnical University of MunichMunichGermany
| | - Michael Gigl
- Bavarian Center for Biomolecular Mass SpectrometryTechnical University of MunichMunichGermany
| | - Ildus I. Ahmetov
- Research Institute for Sport and Exercise SciencesLiverpool John Moores UniversityLiverpoolUK
| | - Tomas Venckunas
- Institute of Sport Science and InnovationsLithuanian Sports UniversityKaunasLithuania
| | - Hans Degens
- Institute of Sport Science and InnovationsLithuanian Sports UniversityKaunasLithuania
- Department of Life SciencesManchester Metropolitan UniversityManchesterUK
| | - Aivaras Ratkevicius
- Institute of Sport Science and InnovationsLithuanian Sports UniversityKaunasLithuania
- Sports and Exercise Medicine CentreQueen Mary University of LondonLondonUK
| | - Juha J. Hulmi
- Faculty of Sport and Health Sciences, NeuroMuscular Research CenterUniversity of JyväskyläJyväskyläFinland
| | - Henning Wackerhage
- School of Medicine and HealthTechnical University of MunichMunichGermany
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Potes Y, Bermejo-Millo JC, Mendes C, Castelão-Baptista JP, Díaz-Luis A, Pérez-Martínez Z, Solano JJ, Sardão VA, Oliveira PJ, Caballero B, Coto-Montes A, Vega-Naredo I. p66Shc signaling and autophagy impact on C2C12 myoblast differentiation during senescence. Cell Death Dis 2024; 15:200. [PMID: 38459002 PMCID: PMC10923948 DOI: 10.1038/s41419-024-06582-0] [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: 08/02/2022] [Revised: 02/23/2024] [Accepted: 03/01/2024] [Indexed: 03/10/2024]
Abstract
During aging, muscle regenerative capacities decline, which is concomitant with the loss of satellite cells that enter in a state of irreversible senescence. However, what mechanisms are involved in myogenic senescence and differentiation are largely unknown. Here, we showed that early-passage or "young" C2C12 myoblasts activated the redox-sensitive p66Shc signaling pathway, exhibited a strong antioxidant protection and a bioenergetic profile relying predominantly on OXPHOS, responses that decrease progressively during differentiation. Furthermore, autophagy was increased in myotubes. Otherwise, late-passage or "senescent" myoblasts led to a highly metabolic profile, relying on both OXPHOS and glycolysis, that may be influenced by the loss of SQSTM1/p62 which tightly regulates the metabolic shift from aerobic glycolysis to OXPHOS. Furthermore, during differentiation of late-passage C2C12 cells, both p66Shc signaling and autophagy were impaired and this coincides with reduced myogenic capacity. Our findings recognized that the lack of p66Shc compromises the proliferation and the onset of the differentiation of C2C12 myoblasts. Moreover, the Atg7 silencing favored myoblasts growth, whereas interfered in the viability of differentiated myotubes. Then, our work demonstrates that the p66Shc signaling pathway, which highly influences cellular metabolic status and oxidative environment, is critical for the myogenic commitment and differentiation of C2C12 cells. Our findings also support that autophagy is essential for the metabolic switch observed during the differentiation of C2C12 myoblasts, confirming how its regulation determines cell fate. The regulatory roles of p66Shc and autophagy mechanisms on myogenesis require future attention as possible tools that could predict and measure the aging-related state of frailty and disability.
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Affiliation(s)
- Yaiza Potes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain.
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain.
| | - Juan C Bermejo-Millo
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain
| | - Catarina Mendes
- CNC-UC, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - José P Castelão-Baptista
- CNC-UC, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- PDBEB - Doctoral Program in Experimental Biology and Biomedicine, Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Andrea Díaz-Luis
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
| | - Zulema Pérez-Martínez
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Microbiology service, University Central Hospital of Asturias, Oviedo, Spain
| | - Juan J Solano
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Geriatric Service, Monte Naranco Hospital, Av. Doctores Fernández Vega, Oviedo, Spain
| | - Vilma A Sardão
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- MIA-Portugal - Multidisciplinary Institute of Ageing, University of Coimbra, Coimbra, Portugal
| | - Paulo J Oliveira
- CNC-UC, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Beatriz Caballero
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain
| | - Ana Coto-Montes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain
| | - Ignacio Vega-Naredo
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain.
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain.
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Jaquet M, Bengue M, Lambert K, Carnac G, Missé D, Bisbal C. Human muscle cells sensitivity to chikungunya virus infection relies on their glycolysis activity and differentiation stage. Biochimie 2024; 218:85-95. [PMID: 37716499 DOI: 10.1016/j.biochi.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 06/22/2023] [Accepted: 09/04/2023] [Indexed: 09/18/2023]
Abstract
Changes to our environment have led to the emergence of human pathogens such as chikungunya virus. Chikungunya virus infection is today a major public health concern. It is a debilitating chronic disease impeding patients' mobility, affecting millions of people. Disease development relies on skeletal muscle infection. The importance of skeletal muscle in chikungunya virus infection led to the hypothesis that it could serve as a viral reservoir and could participate to virus persistence. Here we questioned the interconnection between skeletal muscle cells metabolism, their differentiation stage and the infectivity of the chikungunya virus. We infected human skeletal muscle stem cells at different stages of differentiation with chikungunya virus to study the impact of their metabolism on virus production and inversely the impact of virus on cell metabolism. We observed that chikungunya virus infectivity is cell differentiation and metabolism-dependent. Chikungunya virus interferes with the cellular metabolism in quiescent undifferentiated and proliferative muscle cells. Moreover, activation of chikungunya infected quiescent muscle stem cells, induces their proliferation, increases glycolysis and amplifies virus production. Therefore, our results showed that Chikungunya virus infectivity and the antiviral response of skeletal muscle cells relies on their energetic metabolism and their differentiation stage. Then, muscle stem cells could serve as viral reservoir producing virus after their activation.
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Affiliation(s)
- M Jaquet
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France; MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394, Montpellier, France
| | - M Bengue
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394, Montpellier, France
| | - K Lambert
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France
| | - G Carnac
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France
| | - D Missé
- MIVEGEC, Univ. Montpellier, IRD, CNRS, 34394, Montpellier, France.
| | - C Bisbal
- PhyMedExp, Univ. Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier Cedex 5, France.
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Mäntyselkä S, Kolari K, Baumert P, Ylä-Outinen L, Kuikka L, Lahtonen S, Permi P, Wackerhage H, Kalenius E, Kivelä R, Hulmi JJ. Serine synthesis pathway enzyme PHGDH is critical for muscle cell biomass, anabolic metabolism, and mTORC1 signaling. Am J Physiol Endocrinol Metab 2024; 326:E73-E91. [PMID: 37991454 DOI: 10.1152/ajpendo.00151.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 11/23/2023]
Abstract
Cells use glycolytic intermediates for anabolism, e.g., via the serine synthesis and pentose phosphate pathways. However, we still understand poorly how these metabolic pathways contribute to skeletal muscle cell biomass generation. The first aim of this study was therefore to identify enzymes that limit protein synthesis, myotube size, and proliferation in skeletal muscle cells. We inhibited key enzymes of glycolysis, the pentose phosphate pathway, and the serine synthesis pathway to evaluate their importance in C2C12 myotube protein synthesis. Based on the results of this first screen, we then focused on the serine synthesis pathway enzyme phosphoglycerate dehydrogenase (PHGDH). We used two different PHGDH inhibitors and mouse C2C12 and human primary muscle cells to study the importance and function of PHGDH. Both myoblasts and myotubes incorporated glucose-derived carbon into proteins, RNA, and lipids, and we showed that PHGDH is essential in these processes. PHGDH inhibition decreased protein synthesis, myotube size, and myoblast proliferation without cytotoxic effects. The decreased protein synthesis in response to PHGDH inhibition appears to occur mainly mechanistic target of rapamycin complex 1 (mTORC1)-dependently, as was evident from experiments with insulin-like growth factor 1 and rapamycin. Further metabolomics analyses revealed that PHGDH inhibition accelerated glycolysis and altered amino acid, nucleotide, and lipid metabolism. Finally, we found that supplementing an antioxidant and redox modulator, N-acetylcysteine, partially rescued the decreased protein synthesis and mTORC1 signaling during PHGDH inhibition. The data suggest that PHGDH activity is critical for skeletal muscle cell biomass generation from glucose and that it regulates protein synthesis and mTORC1 signaling.NEW & NOTEWORTHY The use of glycolytic intermediates for anabolism was demonstrated in both myoblasts and myotubes, which incorporate glucose-derived carbon into proteins, RNA, and lipids. We identify phosphoglycerate dehydrogenase (PHGDH) as a critical enzyme in those processes and also for muscle cell hypertrophy, proliferation, protein synthesis, and mTORC1 signaling. Our results thus suggest that PHGDH in skeletal muscle is more than just a serine-synthesizing enzyme.
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Affiliation(s)
- Sakari Mäntyselkä
- Faculty of Sport and Health Sciences, NeuroMuscular Research Center, University of Jyväskylä, Jyväskylä, Finland
| | - Kalle Kolari
- Faculty of Sport and Health Sciences, NeuroMuscular Research Center, University of Jyväskylä, Jyväskylä, Finland
| | - Philipp Baumert
- Department for Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Laura Ylä-Outinen
- Faculty of Sport and Health Sciences, NeuroMuscular Research Center, University of Jyväskylä, Jyväskylä, Finland
| | - Lauri Kuikka
- Central Finland Health Care District Hospital District, Jyväskylä, Finland
| | - Suvi Lahtonen
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Perttu Permi
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
- Department of Chemistry, University of Jyväskylä, Jyväskylä, Finland
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Henning Wackerhage
- Department for Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Elina Kalenius
- Department of Chemistry, University of Jyväskylä, Jyväskylä, Finland
| | - Riikka Kivelä
- Faculty of Sport and Health Sciences, NeuroMuscular Research Center, University of Jyväskylä, Jyväskylä, Finland
- Stem Cells and Metabolism Research Program, Research Programs Unit, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Wihuri Research Institute, Helsinki, Finland
| | - Juha J Hulmi
- Faculty of Sport and Health Sciences, NeuroMuscular Research Center, University of Jyväskylä, Jyväskylä, Finland
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Wirth G, Juusola G, Tarvainen S, Laakkonen JP, Korpisalo P, Ylä-Herttuala S. Capillary Dynamics Regulate Post-Ischemic Muscle Damage and Regeneration in Experimental Hindlimb Ischemia. Cells 2023; 12:2060. [PMID: 37626870 PMCID: PMC10453415 DOI: 10.3390/cells12162060] [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: 06/28/2023] [Revised: 07/20/2023] [Accepted: 07/23/2023] [Indexed: 08/27/2023] Open
Abstract
This study aimed to show the significance of capillary function in post-ischemic recovery from the perspective of physiological parameters, such as blood flow, hemoglobin oxygenation and tissue regeneration. Muscle-level microvascular alterations of blood flow and hemoglobin oxygenation, and post-ischemic myofiber and capillary responses were analyzed in aged, healthy C57Bl/6J mice (n = 48) and aged, hyperlipidemic LDLR-/-ApoB100/100 mice (n = 69) after the induction of acute hindlimb ischemia using contrast ultrasound, photoacoustic imaging and histological analyses, respectively. The capillary responses that led to successful post-ischemic muscle repair in C57Bl/6J mice included an early capillary dilation phase, preceding the return of arterial driving pressure, followed by an increase in capillary density that further supported satellite cell-induced muscle regeneration. Initial capillary enlargement was absent in the LDLR-/-ApoB100/100 mice with lifelong moderate hypercholesterolemia and led to an inability to recover arterial driving pressure, with a resulting increase in distal necrosis, chronic tissue damage and a delay in the overall recovery after ischemia. To conclude, this manuscript highlights, beyond arterial collateralization, the importance of the proper function of the capillary endothelium in post-ischemic recovery and displays how post-ischemic capillary dynamics associate beyond tissue blood flow to both hemoglobin oxygenation and tissue regeneration.
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Affiliation(s)
- Galina Wirth
- Heart Center, Kuopio University Hospital, FI-70200 Kuopio, Finland (P.K.)
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Greta Juusola
- Heart Center, Kuopio University Hospital, FI-70200 Kuopio, Finland (P.K.)
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Santeri Tarvainen
- Heart Center, Kuopio University Hospital, FI-70200 Kuopio, Finland (P.K.)
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Johanna P. Laakkonen
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Petra Korpisalo
- Heart Center, Kuopio University Hospital, FI-70200 Kuopio, Finland (P.K.)
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, FI-70211 Kuopio, Finland
| | - Seppo Ylä-Herttuala
- Heart Center, Kuopio University Hospital, FI-70200 Kuopio, Finland (P.K.)
- A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, FI-70211 Kuopio, Finland
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McMillan DW, Bigford GE, Farkas GJ. The Physiology of Neurogenic Obesity: Lessons from Spinal Cord Injury Research. Obes Facts 2023; 16:313-325. [PMID: 37231872 PMCID: PMC10427964 DOI: 10.1159/000530888] [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: 08/28/2022] [Accepted: 04/25/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND A spinal cord injury (SCI) from trauma or disease impairs sensorimotor pathways in somatic and autonomic divisions of the nervous system, affecting multiple body systems. Improved medical practices have increased survivability and life expectancy after SCI, allowing for the development of extensive metabolic comorbidities and profound changes in body composition that culminate in prevalent obesity. SUMMARY Obesity is the most common cardiometabolic component risk in people living with SCI, with a diagnostic body mass index cutoff of 22 kg/m2 to account for a phenotype of high adiposity and low lean mass. The metameric organization of specific divisions of the nervous system results in level-dependent pathology, with resulting sympathetic decentralization altering physiological functions such as lipolysis, hepatic lipoprotein metabolism, dietary fat absorption, and neuroendocrine signaling. In this manner, SCI provides a unique opportunity to study in vivo the "neurogenic" components of certain pathologies that otherwise are not readily observable in other populations. We discuss the unique physiology of neurogenic obesity after SCI, including the altered functions mentioned above as well as structural changes such as reduced skeletal muscle and bone mass and increased lipid deposition in the adipose tissue, skeletal muscle, bone marrow, and liver. KEY MESSAGE The study of neurogenic obesity after SCI gives us a unique neurological perspective on the physiology of obesity. The lessons learned from this field can guide future research and advancements to inform the study of obesity in persons with and without SCI.
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Affiliation(s)
- David W. McMillan
- Christine E. Lynn Rehabilitation Center for The Miami Project to Cure Paralysis at UHealth/Jackson Memorial, Miami, FL, USA
- Department of Neurological Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Gregory E. Bigford
- Christine E. Lynn Rehabilitation Center for The Miami Project to Cure Paralysis at UHealth/Jackson Memorial, Miami, FL, USA
- Department of Neurological Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Gary J. Farkas
- Christine E. Lynn Rehabilitation Center for The Miami Project to Cure Paralysis at UHealth/Jackson Memorial, Miami, FL, USA
- Department of Physical Medicine and Rehabilitation, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
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Le H, Rai V, Agrawal DK. Cholesterol: An Important Determinant of Muscle Atrophy in Astronauts. JOURNAL OF BIOTECHNOLOGY AND BIOMEDICINE 2023; 6:67-79. [PMID: 37006714 PMCID: PMC10062007 DOI: 10.26502/jbb.2642-91280072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Since cholesterol is not routinely measured in astronauts before and after their return from space, there is no data on the role of blood cholesterol level in muscle atrophy and microgravity. Since the first moon landing, aerospace medicine became outdated and has not pushed boundaries like its rocket engineering counterpart. Since the 2019 astronaut twin study, there has yet to be another scientific breakthrough for aerospace medicine. Microgravity-induced muscle atrophy is the most known consequence of spaceflight. Yet, so far, there is no therapeutic solution to prevent it or any real efforts in understanding it on a cellular or molecular level. The most obvious reason to this unprecedented level of research is due to the small cohort of astronauts. With the establishment of private space industries and exponential recruitment of astronauts, there is more reason to push forward spaceflight-related health guidelines and ensure the safety of the brave humans who risk their lives for the progression of mankind. Spaceflight is considered the most challenging job and the failure to prevent injury or harm should be considered reckless negligence by the institutions that actively prevented sophistication of aerospace medicine. In this critical review, role of cholesterol is analyzed across the NASA-established parameters of microgravity-induced muscle atrophy with a focus on potential therapeutic targets for research.
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Affiliation(s)
- Hoangvi Le
- Department of Translational Research, Western University of Health Sciences, Pomona, California 91766, USA
| | - Vikrant Rai
- Department of Translational Research, Western University of Health Sciences, Pomona, California 91766, USA
| | - Devendra K Agrawal
- Department of Translational Research, Western University of Health Sciences, Pomona, California 91766, USA
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Luo G, Wosinski P, Salazar-Noratto GE, Bensidhoum M, Bizios R, Marashi SA, Potier E, Sheng P, Petite H. Glucose Metabolism: Optimizing Regenerative Functionalities of Mesenchymal Stromal Cells Postimplantation. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:47-61. [PMID: 35754335 DOI: 10.1089/ten.teb.2022.0063] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Mesenchymal stromal cells (MSCs) are considered promising candidates for regenerative medicine applications. Their clinical performance postimplantation, however, has been disappointing. This lack of therapeutic efficacy is most likely due to suboptimal formulations of MSC-containing material constructs. Tissue engineers, therefore, have developed strategies addressing/incorporating optimized cell, microenvironmental, biochemical, and biophysical cues/stimuli to enhance MSC-containing construct performance. Such approaches have had limited success because they overlooked that maintenance of MSC viability after implantation for a sufficient time is necessary for MSCs to develop their regenerative functionalities fully. Following a brief overview of glucose metabolism and regulation in MSCs, the present literature review includes recent pertinent findings that challenge old paradigms and notions. We hereby report that glucose is the primary energy substrate for MSCs, provides precursors for biomass generation, and regulates MSC functions, including proliferation and immunosuppressive properties. More importantly, glucose metabolism is central in controlling in vitro MSC expansion, in vivo MSC viability, and MSC-mediated angiogenesis postimplantation when addressing MSC-based therapies. Meanwhile, in silico models are highlighted for predicting the glucose needs of MSCs in specific regenerative medicine settings, which will eventually enable tissue engineers to design viable and potent tissue constructs. This new knowledge should be incorporated into developing novel effective MSC-based therapies. Impact statement The clinical use of mesenchymal stromal cells (MSCs) has been unsatisfactory due to the inability of MSCs to survive and be functional after implantation for sufficient periods to mediate directly or indirectly a successful regenerative tissue response. The present review summarizes the endeavors in the past, but, most importantly, reports the latest findings that elucidate underlying mechanisms and identify glucose metabolism as the crucial parameter in MSC survival and the subsequent functions pertinent to new tissue formation of importance in tissue regeneration applications. These latest findings justify further basic research and the impetus for developing new strategies to improve the modalities and efficacy of MSC-based therapies.
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Affiliation(s)
- Guotian Luo
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Pauline Wosinski
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Giuliana E Salazar-Noratto
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Morad Bensidhoum
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Rena Bizios
- Department of Biomedical Engineering, The University of Texas at San Antonio, San Antonio, Texas, USA
| | - Sayed-Amir Marashi
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Esther Potier
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
| | - Puyi Sheng
- Department of Joint Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hervé Petite
- Université Paris Cité, CNRS, INSERM, B3OA, Paris, France.,École Nationale Vétérinaire d'Alfort, B3OA, Maisons-Alfort, France
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9
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Xing J, Qi X, Liu G, Li X, Gao X, Bou G, Bai D, Zhao Y, Du M, Dugarjaviin M, Zhang X. A Transcriptomic Regulatory Network among miRNAs, lncRNAs, circRNAs, and mRNAs Associated with L-leucine-induced Proliferation of Equine Satellite Cells. Animals (Basel) 2023; 13:ani13020208. [PMID: 36670748 PMCID: PMC9854542 DOI: 10.3390/ani13020208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023] Open
Abstract
In response to muscle injury, muscle stem cells are stimulated by environmental signals to integrate into damaged tissue to mediate regeneration. L-leucine (L-leu), a branched-chain amino acid (BCAA) that belongs to the essential amino acids (AAs) of the animal, has gained global interest on account of its muscle-building and regenerating effects. The present study was designed to investigate the impact of L-leu exposure to promote the proliferation of equine skeletal muscle satellite cells (SCs) on the regulation of RNA networks, including mRNA, long non-coding RNA (lncRNA), covalently closed circular RNA (circRNA), and microRNA (miRNA) in skeletal muscles. Equine SCs were used as a cell model and cultured in different concentrations of L-leu medium. The cell proliferation assay found that the optimal concentration of L-leu was 2 mM, so we selected cells cultured with L-leu concentrations of 0 mM and 2 mM for whole-transcriptiome sequencing, respectively. By high-throughput sequencing analysis, 2470 differentially expressed mRNAs (dif-mRNAs), 363 differentially expressed lncRNAs (dif-lncRNAs), 634 differentially expressed circRNAs (dif-circRNAs), and 49 differentially expressed miRNAs (dif-miRNAs) were significantly altered in equine SCs treated with L-leu. To identify the function of autoimmunity and anti-inflammatory responses after L-leu exposure, enrichment analysis was conducted on those differentially expressed genes (DEGs) related to lncRNA, circRNA, and miRNA. The hub genes were selected from PPI Network, including ACACB, HMGCR, IDI1, HAO1, SHMT2, PSPH, PSAT1, ASS1, PHGDH, MTHFD2, and DPYD, and were further identified as candidate biomarkers to regulate the L-leu-induced proliferation of equine SCs. The up-regulated novel 699_star, down-regulated novel 170_star, and novel 360_mature were significantly involved in the competing endogenous RNA (ceRNA) complex network. The hub genes involved in cell metabolism and dif-miRNAs may play fundamental roles in the L-leu-induced proliferation of equine SCs. Our findings suggested that the potential network regulation of miRNAs, circ-RNAs, lncRNAs, and mRNAs plays an important role in the proliferation of equine SCs, so as to build up new perspectives on improving equine performance and treatment strategies for the muscle injuries of horses.
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Affiliation(s)
- Jingya Xing
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Xingzhen Qi
- Liaocheng Research Institute of Donkey High-Breeding and Ecological Feeding, College of Agronomy, Liaocheng University, Liaocheng 252000, China
| | - Guiqin Liu
- Liaocheng Research Institute of Donkey High-Breeding and Ecological Feeding, College of Agronomy, Liaocheng University, Liaocheng 252000, China
| | - Xinyu Li
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Xing Gao
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Gerelchimeg Bou
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Dongyi Bai
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yiping Zhao
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Ming Du
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Manglai Dugarjaviin
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Xinzhuang Zhang
- Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction, Scientific Observing and Experimental Station of Equine Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Equine Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China
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10
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Washington TA, Haynie WS, Schrems ER, Perry RA, Brown LA, Williams BM, Rosa-Caldwell ME, Lee DE, Brown JL. Effects of PGC-1α overexpression on the myogenic response during skeletal muscle regeneration. SPORTS MEDICINE AND HEALTH SCIENCE 2022; 4:198-208. [PMID: 36090923 PMCID: PMC9453693 DOI: 10.1016/j.smhs.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 11/17/2022] Open
Abstract
The ability of skeletal muscle to regenerate from injury is crucial for locomotion, metabolic health, and quality of life. Peroxisome proliferator-activated receptor-γ coactivator-1α (PGC1A) is a transcriptional coactivator required for mitochondrial biogenesis. Increased mitochondrial biogenesis is associated with improved muscle cell differentiation, however PGC1A's role in skeletal muscle regeneration following damage requires further investigation. The purpose of this study was to investigate the role of skeletal muscle-specific PGC1A overexpression during regeneration following damage. 22 C57BL/6J (WT) and 26 PGC1A muscle transgenic (A1) mice were injected with either phosphate-buffered saline (PBS, uninjured control) or Bupivacaine (MAR, injured) into their tibialis anterior (TA) muscle to induce skeletal muscle damage. TA muscles were extracted 3- or 28-days post-injury and analyzed for markers of regenerative myogenesis and protein turnover. Pgc1a mRNA was ∼10–20 fold greater in A1 mice. Markers of protein synthesis, AKT and 4EBP1, displayed decreases in A1 mice compared to WT at both timepoints indicating a decreased protein synthetic response. Myod mRNA was ∼75% lower compared to WT 3 days post-injection. WT mice exhibited decreased cross-sectional area of the TA muscle at 28 days post-injection with bupivacaine compared to all other groups. PGC1A overexpression modifies the myogenic response during regeneration.
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Affiliation(s)
- Tyrone A. Washington
- Exercise Muscle Biology Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
- Corresponding author. University of Arkansas Department of Health, Human Performance, and Recreation, 155 Stadium Dr. HPER 309, Fayetteville, AR, 72701, USA.
| | - Wesley S. Haynie
- Exercise Muscle Biology Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Eleanor R. Schrems
- Exercise Muscle Biology Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Richard A. Perry
- Exercise Muscle Biology Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Lemuel A. Brown
- Exercise Muscle Biology Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Breanna M. Williams
- Exercise Muscle Biology Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Megan E. Rosa-Caldwell
- Cachexia Research Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
| | - David E. Lee
- Cachexia Research Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Jacob L. Brown
- Cachexia Research Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, 72701, USA
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11
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Lei Q, Hu X, Han H, Wang J, Liu W, Zhou Y, Cao D, Li F, Liu J. Integrative analysis of circRNA, miRNA, and mRNA profiles to reveal ceRNA regulation in chicken muscle development from the embryonic to post-hatching periods. BMC Genomics 2022; 23:342. [PMID: 35505302 PMCID: PMC9063329 DOI: 10.1186/s12864-022-08525-5] [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: 10/17/2021] [Accepted: 03/29/2022] [Indexed: 12/13/2022] Open
Abstract
Background The growth and development of skeletal muscle are regulated by protein-coding genes and non-coding RNA. Circular RNA (circRNA) is a type of non-coding RNA involved in a variety of biological processes, especially in post-transcriptional regulation. To better understand the regulatory mechanism of circRNAs during the development of muscle in chicken, we performed RNA-seq with linear RNA depletion for chicken breast muscle in 12 (E 12) and17 (E 17) day embryos, and 1 (D 1), 14 (D 14), 56 (D 56), and 98 (D 98) days post-hatch. Results We identified 5755 differentially expressed (DE)-circRNAs during muscle development. We profiled the expression of DE-circRNAs and mRNAs (identified in our previous study) at up to six time points during chicken muscle development and uncovered a significant profile (profile 16) for circRNA upregulation during aging in muscle tissues. To investigate competing endogenous RNA (ceRNA) regulation in muscle and identify muscle-related circRNAs, we constructed a circRNA-miRNA-mRNA regulatory network using the circRNAs and mRNAs from profile 16 and miRNAs identified in our previous study, which included 361 miRNAs, 68 circRNAs, 599 mRNAs, and 31,063 interacting pairs. Functional annotation showed that upregulated circRNAs might contribute to glycolysis/gluconeogenesis, biosynthesis of amino acids, pyruvate metabolism, carbon metabolism, glycogen and sucrose metabolism through the ceRNA network, and thus affected postnatal muscle development by regulating muscle protein deposition. Of them, circRNA225 and circRNA226 from the same host gene might be key circRNAs that could regulate muscle development by interacting with seven common miRNAs and 207 mRNAs. Our experiments also demonstrated that there were interactions among circRNA225, gga-miR-1306-5p, and heat shock protein alpha 8 (HSPA8). Conclusions Our results suggest that adequate supply of nutrients such as energy and protein after hatching may be a key factor in ensuring chicken yield, and provide several candidate circRNAs for future studies concerning ceRNA regulation during chicken muscle development. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08525-5.
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Affiliation(s)
- Qiuxia Lei
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China.,Poultry Breeding Engineering Technology Center of Shandong Province, Ji'nan, 250023, China
| | - Xin Hu
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China.,Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,Molecular and Cellular Biology, Gembloux Agro-Bio Tech, University of Liège, 5030, Gembloux, Belgium
| | - Haixia Han
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China
| | - Jie Wang
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China
| | - Wei Liu
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China
| | - Yan Zhou
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China
| | - Dingguo Cao
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China
| | - Fuwei Li
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China
| | - Jie Liu
- Poultry Institute, Shandong Academy of Agricultural Sciences, Ji'nan, 250023, China. .,Poultry Breeding Engineering Technology Center of Shandong Province, Ji'nan, 250023, China.
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12
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Zaręba-Kozioł M, Burdukiewicz M, Wysłouch-Cieszyńska A. Intracellular Protein S-Nitrosylation—A Cells Response to Extracellular S100B and RAGE Receptor. Biomolecules 2022; 12:biom12050613. [PMID: 35625541 PMCID: PMC9138530 DOI: 10.3390/biom12050613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 02/18/2022] [Accepted: 03/09/2022] [Indexed: 02/04/2023] Open
Abstract
Human S100B is a small, multifunctional protein. Its activity, inside and outside cells, contributes to the biology of the brain, muscle, skin, and adipocyte tissues. Overexpression of S100B occurs in Down Syndrome, Alzheimer’s disease, Creutzfeldt–Jakob disease, schizophrenia, multiple sclerosis, brain tumors, epilepsy, melanoma, myocardial infarction, muscle disorders, and sarcopenia. Modulating the activities of S100B, related to human diseases, without disturbing its physiological functions, is vital for drug and therapy design. This work focuses on the extracellular activity of S100B and one of its receptors, the Receptor for Advanced Glycation End products (RAGE). The functional outcome of extracellular S100B, partially, depends on the activation of intracellular signaling pathways. Here, we used Biotin Switch Technique enrichment and mass-spectrometry-based proteomics to show that the appearance of the S100B protein in the extracellular milieu of the mammalian Chinese Hamster Ovary (CHO) cells, and expression of the membrane-bound RAGE receptor, lead to changes in the intracellular S-nitrosylation of, at least, more than a hundred proteins. Treatment of the wild-type CHO cells with nanomolar or micromolar concentrations of extracellular S100B modulates the sets of S-nitrosylation targets inside cells. The cellular S-nitrosome is tuned differently, depending on the presence or absence of stable RAGE receptor expression. The presented results are a proof-of-concept study, suggesting that S-nitrosylation, like other post-translational modifications, should be considered in future research, and in developing tailored therapies for S100B and RAGE receptor-related diseases.
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Affiliation(s)
- Monika Zaręba-Kozioł
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland;
- Laboratory of Cell Biophysics, Nencki Institute of Experimental Biology, Polish Academy of Science, Pasteura 3, 02-093 Warsaw, Poland
| | - Michał Burdukiewicz
- Clinical Research Centre, Medical University of Białystok, Kilińskiego 1, 15-369 Białystok, Poland;
| | - Aleksandra Wysłouch-Cieszyńska
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, 02-106 Warsaw, Poland;
- Correspondence:
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13
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Kasai A, Jee E, Tamura Y, Kouzaki K, Kotani T, Nakazato K. Aldehyde dehydrogenase 2 deficiency promotes skeletal muscle atrophy in aged mice. Am J Physiol Regul Integr Comp Physiol 2022; 322:R511-R525. [PMID: 35318866 DOI: 10.1152/ajpregu.00304.2021] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Aldehyde dehydrogenase 2 (ALDH2) detoxifies acetaldehyde produced from ethanol. A missense single nucleotide polymorphism (SNP) rs671 in ALDH2 exhibits a dominant-negative form of the ALDH2 protein. Nearly 40% of people in East Asia carry an inactive ALDH2*2 mutation. Previous studies reported that ALDH2*2 is associated with increased risk of several diseases. In this study, we examined the effect of ALDH2 deficiency on age-related muscle atrophy and its underlying mechanisms. We found that ALDH2 deficiency promotes age-related loss of muscle fiber cross-sectional areas, especially in oxidative fibers. Furthermore, ALDH2 deficiency exacerbated age-related accumulation of 4-hydroxy-2-nonenal (4-HNE), a marker of oxidative stress in the gastrocnemius muscle. Similarly, mitochondrial reactive oxygen species (ROS) production increased in aged ALDH2-knockout mice, indicating that ALDH2 deficiency induced mitochondrial dysfunction. In summary, ALDH2 deficiency promotes age-related muscle loss, especially in oxidative fibers, which may be associated with an increased accumulation of oxidative stress via mitochondrial dysfunction.
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Affiliation(s)
- Akane Kasai
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Eunbin Jee
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Yuki Tamura
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.,Reaseach Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Karina Kouzaki
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.,Reaseach Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Takaya Kotani
- Reaseach Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Koichi Nakazato
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.,Reaseach Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
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14
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Pyroptosis and Sarcopenia: Frontier Perspective of Disease Mechanism. Cells 2022; 11:cells11071078. [PMID: 35406642 PMCID: PMC8998102 DOI: 10.3390/cells11071078] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/07/2022] [Accepted: 03/18/2022] [Indexed: 01/27/2023] Open
Abstract
With global ageing, sarcopenia, as an age-related disease, has brought a heavy burden to individuals and society. Increasing attention has been given to further exploring the morbidity mechanism and intervention measures for sarcopenia. Pyroptosis, also known as cellular inflammatory necrosis, is a kind of regulated cell death that plays a role in the ageing progress at the cellular level. It is closely related to age-related diseases such as cardiovascular diseases, Alzheimer’s disease, osteoarthritis, and sarcopenia. In the process of ageing, aggravated oxidative stress and poor skeletal muscle perfusion in ageing muscle tissues can activate the nod-like receptor (NLRP) family to trigger pyroptosis. Chronic inflammation is a representative characteristic of ageing. The levels of inflammatory factors such as TNF-α may activate the signaling pathways of pyroptosis by the NF-κB-GSDMD axis, which remains to be further studied. Autophagy is a protective mechanism in maintaining the integrity of intracellular organelles and the survival of cells in adverse conditions. The autophagy of skeletal muscle cells can inhibit the activation of the pyroptosis pathway to some extent. A profound understanding of the mechanism of pyroptosis in sarcopenia may help to identify new therapeutic targets in the future. This review article focuses on the role of pyroptosis in the development and progression of sarcopenia.
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15
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Dietary Alaska Pollack Protein Induces Acute and Sustainable Skeletal Muscle Hypertrophy in Rats. Nutrients 2022; 14:nu14030547. [PMID: 35276908 PMCID: PMC8837972 DOI: 10.3390/nu14030547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/07/2022] [Accepted: 01/14/2022] [Indexed: 11/21/2022] Open
Abstract
Our previous studies suggested that Alaska pollack protein (APP) intake increases skeletal muscle mass and that it may cause a slow-to-fast shift in muscle fiber type in rats fed a high-fat diet after 56 days of feeding. In this study, we explored whether dietary APP induces acute and sustainable skeletal muscle hypertrophy in rats fed a normal-fat diet. Male 5-week-old Sprague–Dawley rats were divided into four groups and fed a purified ingredient-based high-fat diet or a purified ingredient-based normal-fat diet with casein or APP, containing the same amount of crude protein. Dietary APP significantly increased gastrocnemius muscle mass (105~110%) after 2, 7 days of feeding, regardless of dietary fat content. Rats were separated into two groups and fed a normal-fat diet with casein or APP. Dietary APP significantly increased gastrocnemius muscle mass (110%) after 56 days of feeding. Dietary APP significantly increased the cross-sectional area of the gastrocnemius skeletal muscle and collagen-rich connective tissue after 7 days of feeding. It decreased the gene expression of Mstn /Myostatin, Trim63/MuRF1, and Fbxo32/atrogin-1, but not other gene expression, such as serum IGF-1 after 7 days of feeding. No differences were observed between casein and APP groups with respect to the percentage of Type I, Type IIA, and Type IIX or IIB fibers, as determined by myosin ATPase staining after 7 days of feeding. In the similar experiment, the puromycin-labeled peptides were not different between dietary casein and APP after 2 days of feeding. These results demonstrate that APP induces acute and sustainable skeletal muscle hypertrophy in rats, regardless of dietary fat content. Dietary APP, as a daily protein source, may be an approach for maintaining or increasing muscle mass.
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16
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Kitakaze T, Sugihira T, Kameyama H, Maruchi A, Kobayashi Y, Harada N, Yamaji R. Carotenoid transporter CD36 expression depends on hypoxia-inducible factor-1α in mouse soleus muscles. J Clin Biochem Nutr 2022; 71:112-121. [PMID: 36213788 PMCID: PMC9519423 DOI: 10.3164/jcbn.21-163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/22/2022] [Indexed: 11/22/2022] Open
Abstract
Dietary β-carotene induces muscle hypertrophy and prevents muscle atrophy in red slow-twitch soleus muscles, but not in white fast-twitch extensor digitorum longus (EDL) muscles and gastrocnemius muscles. However, it remains unclear why these beneficial effects of β-carotene are elicited in soleus muscles. To address this issue, we focused on carotenoid transporters in skeletal muscles. In mice, Cd36 mRNA levels were higher in red muscle than in white muscle. The siRNA-mediated knockdown of CD36 decreased β-carotene uptake in C2C12 myotubes. In soleus muscles, CD36 knockdown inhibited β-carotene-induced increase in muscle mass. Intravenous injection of the hypoxia marker pimonidazole produced more pimonidazole-bound proteins in soleus muscles than in EDL muscles, and the hypoxia-inducible factor-1 (HIF-1) α protein level was higher in soleus muscles than in EDL muscles. In C2C12 myotubes, hypoxia increased the expression of CD36 and HIF-1α at the protein and mRNA levels, and HIF-1α knockdown reduced hypoxia-induced increase in Cd36 mRNA level. In soleus muscles, HIF-1α knockdown reduced Cd36 mRNA level. These results indicate that CD36 is predominantly involved in β-carotene-induced increase in soleus muscle mass of mice. Furthermore, we demonstrate that CD36 expression depends on HIF-1α in the soleus muscles of mice, even under normal physiological conditions.
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Affiliation(s)
- Tomoya Kitakaze
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Takashi Sugihira
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Hiromichi Kameyama
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Asami Maruchi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Yasuyuki Kobayashi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Naoki Harada
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
| | - Ryoichi Yamaji
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University
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17
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Coto-Montes A, González-Blanco L, Antuña E, Menéndez-Valle I, Bermejo-Millo JC, Caballero B, Vega-Naredo I, Potes Y. The Interactome in the Evolution From Frailty to Sarcopenic Dependence. Front Cell Dev Biol 2021; 9:792825. [PMID: 34926470 PMCID: PMC8675940 DOI: 10.3389/fcell.2021.792825] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/11/2021] [Indexed: 12/01/2022] Open
Abstract
Biomarkers are essential tools for accurate diagnosis and effective prevention, but their validation is a pending challenge that limits their usefulness, even more so with constructs as complex as frailty. Sarcopenia shares multiple mechanisms with frailty which makes it a strong candidate to provide robust frailty biomarkers. Based on this premise, we studied the temporal evolution of cellular interactome in frailty, from independent patients to dependent ones. Overweight is a recognized cause of frailty in aging, so we studied the altered mechanisms in overweight independent elderly and evaluated their aggravation in dependent elderly. This evidence of the evolution of previously altered mechanisms would significantly support their role as real biomarkers of frailty. The results showed a preponderant role of autophagy in interactome control at both different functional points, modulating other essential mechanisms in the cell, such as mitochondrial capacity or oxidative stress. Thus, the overweight provoked in the muscle of the elderly an overload of autophagy that kept cell survival in apparently healthy individuals. This excessive and permanent autophagic effort did not seem to be able to be maintained over time. Indeed, in dependent elderly, the muscle showed a total autophagic inactivity, with devastating effects on the survival of the cell, which showed clear signs of apoptosis, and reduced functional capacity. The frail elderly are in a situation of weakness that is a precursor of dependence that can still be prevented if detection is early. Hence biomarkers are essential in this context.
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Affiliation(s)
- Ana Coto-Montes
- Department of Cell Biology and Morphology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain
| | - Laura González-Blanco
- Área de Sistemas de Producción Animal, Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Villaviciosa, Spain
| | - Eduardo Antuña
- Department of Cell Biology and Morphology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain
| | - Iván Menéndez-Valle
- Department of Cell Biology and Morphology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain
| | - Juan Carlos Bermejo-Millo
- Department of Cell Biology and Morphology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain
| | - Beatriz Caballero
- Department of Cell Biology and Morphology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain
| | - Ignacio Vega-Naredo
- Department of Cell Biology and Morphology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain
| | - Yaiza Potes
- Department of Cell Biology and Morphology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, Oviedo, Spain
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain
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18
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Arneson-Wissink PC, Doles JD. Disrupted NOS2 metabolism drives myoblast response to wasting-associated cytokines. Exp Cell Res 2021; 407:112779. [PMID: 34428455 PMCID: PMC8440454 DOI: 10.1016/j.yexcr.2021.112779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 12/14/2022]
Abstract
Skeletal muscle wasting drives negative clinical outcomes and is associated with a spectrum of pathologies including cancer. Cancer cachexia is a multi-factorial syndrome that encompasses skeletal muscle wasting and remains understudied, despite being a frequent and serious co-morbidity. Deviation from the homeostatic balance between breakdown and regeneration leads to muscle wasting disorders, such as cancer cachexia. Muscle stem cells (MuSCs) are the cellular compartment responsible for muscle regeneration, which makes MuSCs an intriguing target in the context of wasting muscle. Molecular studies investigating MuSCs and skeletal muscle wasting largely focus on transcriptional changes, but our group and others propose that metabolic changes are another layer of cellular regulation underlying MuSC dysfunction in cancer cachexia. In the present study, we combined gene expression and non-targeted metabolomic profiling of myoblasts exposed to wasting conditions (cancer cell conditioned media, CC-CM) to derive a more complete picture of the myoblast response to wasting factors. After mapping these features to annotated pathways, we found that more than half of the mapped pathways were amino acid-related, linking global amino acid metabolic disruption to conditioned media-induced myoblast defects. Notably, arginine metabolism was a highly enriched pathway in combined metabolomic and transcriptomic data. Arginine catabolism generates nitric oxide (NO), an important signaling molecule known to have negative effects on mature muscle. We hypothesize that tumor-derived disruptions in Nitric Oxide Synthase (NOS)2-regulated arginine catabolism impair differentiation of MuSCs. The work presented here further investigates the effect of NOS2 overactivity on myoblast proliferation and differentiation. We show that NOS2 inhibition is sufficient to rescue wasting phenotypes associated with inflammatory cytokines. Ultimately, this work provides new insights into MuSC biology and opens up potential therapeutic avenues for addressing disrupted MuSC dynamics in cancer cachexia.
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Affiliation(s)
- Paige C Arneson-Wissink
- Department of Biochemistry and Molecular Biology, Mayo
Clinic, Rochester, Minnesota, 55905 USA
| | - Jason D Doles
- Department of Biochemistry and Molecular Biology, Mayo
Clinic, Rochester, Minnesota, 55905 USA.,Corresponding Author: Jason D Doles, Department of
Biochemistry and Molecular Biology, Mayo Clinic, 200 First St SW, Guggenheim
16-11A1, Rochester, MN 55905, Tel: (507) 284-9372, Fax: (507) 284-3383,
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19
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Lee K, Kim J, Park SD, Shim JJ, Lee JL. Lactobacillus plantarum HY7715 Ameliorates Sarcopenia by Improving Skeletal Muscle Mass and Function in Aged Balb/c Mice. Int J Mol Sci 2021; 22:ijms221810023. [PMID: 34576187 PMCID: PMC8466743 DOI: 10.3390/ijms221810023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/06/2021] [Accepted: 09/13/2021] [Indexed: 02/06/2023] Open
Abstract
Sarcopenia is a loss of muscle mass and function in elderly people and can lead to physical frailty and fall-related injuries. Sarcopenia is an inevitable event of the aging process that substantially impacts a person's quality of life. Recent studies to improve muscle function through the intake of various functional food materials are attracting attention. However, it is not yet known whether probiotics can improve muscle mass and muscle strength and affect physical performance. Lactobacillus plantarum HY7715 (HY7715) is a lactic acid bacteria isolated from kimchi. The present research shows that L. plantarum HY7715 increases physical performance and skeletal muscle mass in 80-week-old aged Balb/c male mice. HY7715 not only induces myoblast differentiation and mitochondrial biogenesis but also inhibits the sarcopenic process in skeletal muscle. In addition, HY7715 recovers the microbiome composition and beta-diversity shift. Therefore, HY7715 has promise as a functional probiotic supplement to improve the degeneration of muscle function that is associated with aging.
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20
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Yin H, Arpino JM, Lee JJ, Pickering JG. Regenerated Microvascular Networks in Ischemic Skeletal Muscle. Front Physiol 2021; 12:662073. [PMID: 34177614 PMCID: PMC8231913 DOI: 10.3389/fphys.2021.662073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/10/2021] [Indexed: 12/24/2022] Open
Abstract
Skeletal muscle is the largest organ in humans. The viability and performance of this metabolically demanding organ are exquisitely dependent on the integrity of its microcirculation. The architectural and functional attributes of the skeletal muscle microvasculature are acquired during embryonic and early postnatal development. However, peripheral vascular disease in the adult can damage the distal microvasculature, together with damaging the skeletal myofibers. Importantly, adult skeletal muscle has the capacity to regenerate. Understanding the extent to which the microvascular network also reforms, and acquires structural and functional competence, will thus be critical to regenerative medicine efforts for those with peripheral artery disease (PAD). Herein, we discuss recent advances in studying the regenerating microvasculature in the mouse hindlimb following severe ischemic injury. We highlight new insights arising from real-time imaging of the microcirculation. This includes identifying otherwise hidden flaws in both network microarchitecture and function, deficiencies that could underlie the progressive nature of PAD and its refractoriness to therapy. Recognizing and overcoming these vulnerabilities in regenerative angiogenesis will be important for advancing treatment options for PAD.
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Affiliation(s)
- Hao Yin
- Robarts Research Institute, Western University, London, ON, Canada
| | | | - Jason J Lee
- Robarts Research Institute, Western University, London, ON, Canada.,Department of Medicine, Western University, London, ON, Canada
| | - J Geoffrey Pickering
- Robarts Research Institute, Western University, London, ON, Canada.,Department of Medicine, Western University, London, ON, Canada.,Department of Medical Biophysics, Western University, London, ON, Canada.,Department of Biochemistry, Western University, London, ON, Canada
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21
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Ali A, Murani E, Hadlich F, Liu X, Wimmers K, Ponsuksili S. Prenatal Skeletal Muscle Transcriptome Analysis Reveals Novel MicroRNA-mRNA Networks Associated with Intrauterine Growth Restriction in Pigs. Cells 2021; 10:cells10051007. [PMID: 33923344 PMCID: PMC8145024 DOI: 10.3390/cells10051007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023] Open
Abstract
Intrauterine growth restriction (IUGR) occurs in 15–20% of pig neonates and poses huge economic losses to the pig industry. IUGR piglets have reduced skeletal muscle growth, which may persist after birth. Prenatal muscle growth is regulated by complex molecular pathways that are not well understood. MicroRNAs (miRNAs) have emerged as the main regulators of vital pathways and biological processes in the body. This study was designed to identify miRNA–mRNA networks regulating prenatal skeletal muscle development in pigs. We performed an integrative miRNA–mRNA transcriptomic analysis in longissimus dorsi muscle from IUGR fetuses and appropriate for gestational age (AGA) fetuses at 63 days post conception. Our data showed that 47 miRNAs and 3257 mRNAs were significantly upregulated, and six miRNAs and 477 mRNAs were significantly downregulated in IUGR compared to AGA fetuses. Moreover, 47 upregulated miRNAs were negatively correlated and can potentially target 326 downregulated genes, whereas six downregulated miRNAs were negatively correlated and can potentially target 1291 upregulated genes. These miRNA–mRNA networks showed enrichment in biological processes and pathways critical for fetal growth, development, and metabolism. The miRNA–mRNA networks identified in this study can potentially serve as indicators of prenatal fetal growth and development as well as postnatal carcass quality.
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Affiliation(s)
- Asghar Ali
- Leibniz Institute for Farm Animal Biology, Institute for Genome Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Eduard Murani
- Leibniz Institute for Farm Animal Biology, Institute for Genome Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Frieder Hadlich
- Leibniz Institute for Farm Animal Biology, Institute for Genome Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Xuan Liu
- Leibniz Institute for Farm Animal Biology, Institute for Genome Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Klaus Wimmers
- Leibniz Institute for Farm Animal Biology, Institute for Genome Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
- Faculty of Agricultural and Environmental Sciences, University Rostock, 18059 Rostock, Germany
| | - Siriluck Ponsuksili
- Leibniz Institute for Farm Animal Biology, Institute for Genome Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
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22
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Maissan P, Mooij EJ, Barberis M. Sirtuins-Mediated System-Level Regulation of Mammalian Tissues at the Interface between Metabolism and Cell Cycle: A Systematic Review. BIOLOGY 2021; 10:194. [PMID: 33806509 PMCID: PMC7999230 DOI: 10.3390/biology10030194] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023]
Abstract
Sirtuins are a family of highly conserved NAD+-dependent proteins and this dependency links Sirtuins directly to metabolism. Sirtuins' activity has been shown to extend the lifespan of several organisms and mainly through the post-translational modification of their many target proteins, with deacetylation being the most common modification. The seven mammalian Sirtuins, SIRT1 through SIRT7, have been implicated in regulating physiological responses to metabolism and stress by acting as nutrient sensors, linking environmental and nutrient signals to mammalian metabolic homeostasis. Furthermore, mammalian Sirtuins have been implicated in playing major roles in mammalian pathophysiological conditions such as inflammation, obesity and cancer. Mammalian Sirtuins are expressed heterogeneously among different organs and tissues, and the same holds true for their substrates. Thus, the function of mammalian Sirtuins together with their substrates is expected to vary among tissues. Any therapy depending on Sirtuins could therefore have different local as well as systemic effects. Here, an introduction to processes relevant for the actions of Sirtuins, such as metabolism and cell cycle, will be followed by reasoning on the system-level function of Sirtuins and their substrates in different mammalian tissues. Their involvement in the healthy metabolism and metabolic disorders will be reviewed and critically discussed.
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Affiliation(s)
- Parcival Maissan
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, 1098 XH Amsterdam, The Netherlands;
| | - Eva J. Mooij
- Systems Biology, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, Surrey, UK;
- Centre for Mathematical and Computational Biology, CMCB, University of Surrey, Guildford GU2 7XH, Surrey, UK
| | - Matteo Barberis
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, 1098 XH Amsterdam, The Netherlands;
- Systems Biology, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, Surrey, UK;
- Centre for Mathematical and Computational Biology, CMCB, University of Surrey, Guildford GU2 7XH, Surrey, UK
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23
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Ceco E, Celli D, Weinberg S, Shigemura M, Welch LC, Volpe L, Chandel NS, Bharat A, Lecuona E, Sznajder JI. Elevated CO 2 Levels Delay Skeletal Muscle Repair by Increasing Fatty Acid Oxidation. Front Physiol 2021; 11:630910. [PMID: 33551852 PMCID: PMC7859333 DOI: 10.3389/fphys.2020.630910] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 12/24/2020] [Indexed: 11/16/2022] Open
Abstract
Muscle dysfunction often occurs in patients with chronic obstructive pulmonary diseases (COPD) and affects ventilatory and non-ventilatory skeletal muscles. We have previously reported that hypercapnia (elevated CO2 levels) causes muscle atrophy through the activation of the AMPKα2-FoxO3a-MuRF1 pathway. In the present study, we investigated the effect of normoxic hypercapnia on skeletal muscle regeneration. We found that mouse C2C12 myoblasts exposed to elevated CO2 levels had decreased fusion index compared to myoblasts exposed to normal CO2. Metabolic analyses of C2C12 myoblasts exposed to high CO2 showed increased oxidative phosphorylation due to increased fatty acid oxidation. We utilized the cardiotoxin-induced muscle injury model in mice exposed to normoxia and 10% CO2 for 21 days and observed that muscle regeneration was delayed. High CO2-delayed differentiation in both mouse C2C12 myoblasts and skeletal muscle after injury and was restored to control levels when cells or mice were treated with a carnitine palmitoyltransfearse-1 (CPT1) inhibitor. Taken together, our data suggest that hypercapnia leads to changes in the metabolic activity of skeletal muscle cells, which results in impaired muscle regeneration and recovery after injury.
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Affiliation(s)
- Ermelinda Ceco
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Diego Celli
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Samuel Weinberg
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Masahiko Shigemura
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Lynn C Welch
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Lena Volpe
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Navdeep S Chandel
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Ankit Bharat
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States.,Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Emilia Lecuona
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Jacob I Sznajder
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
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24
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Verbrugge SAJ, Gehlert S, Stadhouders LEM, Jacko D, Aussieker T, M. J. de Wit G, Vogel ISP, Offringa C, Schönfelder M, Jaspers RT, Wackerhage H. PKM2 Determines Myofiber Hypertrophy In Vitro and Increases in Response to Resistance Exercise in Human Skeletal Muscle. Int J Mol Sci 2020; 21:E7062. [PMID: 32992783 PMCID: PMC7583908 DOI: 10.3390/ijms21197062] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 12/22/2022] Open
Abstract
Nearly 100 years ago, Otto Warburg investigated the metabolism of growing tissues and discovered that tumors reprogram their metabolism. It is poorly understood whether and how hypertrophying muscle, another growing tissue, reprograms its metabolism too. Here, we studied pyruvate kinase muscle (PKM), which can be spliced into two isoforms (PKM1, PKM2). This is of interest, because PKM2 redirects glycolytic flux towards biosynthetic pathways, which might contribute to muscle hypertrophy too. We first investigated whether resistance exercise changes PKM isoform expression in growing human skeletal muscle and found that PKM2 abundance increases after six weeks of resistance training, whereas PKM1 decreases. Second, we determined that Pkm2 expression is higher in fast compared to slow fiber types in rat skeletal muscle. Third, by inducing hypertrophy in differentiated C2C12 cells and by selectively silencing Pkm1 and/or Pkm2 with siRNA, we found that PKM2 limits myotube growth. We conclude that PKM2 contributes to hypertrophy in C2C12 myotubes and indicates a changed metabolic environment within hypertrophying human skeletal muscle fibers. PKM2 is preferentially expressed in fast muscle fibers and may partly contribute to the increased potential for hypertrophy in fast fibers.
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Affiliation(s)
- Sander A. J. Verbrugge
- Department for Sport and Health Sciences, Technical University of Munich, Georg-Brauchle-Ring 60/62, 80992 München/Munich, Germany; (S.A.J.V.); (M.S.)
| | - Sebastian Gehlert
- Department for the Biosciences of Sports, Institute of Sports Science, University of Hildesheim, Universitätsplatz 1, 31141 Hildesheim, Germany
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, 50933 Cologne, Germany; (D.J.); (T.A.)
| | - Lian E. M. Stadhouders
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (L.E.M.S.); (G.M.J.d.W.); (I.S.P.V.); (C.O.)
| | - Daniel Jacko
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, 50933 Cologne, Germany; (D.J.); (T.A.)
| | - Thorben Aussieker
- Department for Molecular and Cellular Sports Medicine, German Sport University Cologne, 50933 Cologne, Germany; (D.J.); (T.A.)
| | - Gerard M. J. de Wit
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (L.E.M.S.); (G.M.J.d.W.); (I.S.P.V.); (C.O.)
| | - Ilse S. P. Vogel
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (L.E.M.S.); (G.M.J.d.W.); (I.S.P.V.); (C.O.)
| | - Carla Offringa
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (L.E.M.S.); (G.M.J.d.W.); (I.S.P.V.); (C.O.)
| | - Martin Schönfelder
- Department for Sport and Health Sciences, Technical University of Munich, Georg-Brauchle-Ring 60/62, 80992 München/Munich, Germany; (S.A.J.V.); (M.S.)
| | - Richard T. Jaspers
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (L.E.M.S.); (G.M.J.d.W.); (I.S.P.V.); (C.O.)
| | - Henning Wackerhage
- Department for Sport and Health Sciences, Technical University of Munich, Georg-Brauchle-Ring 60/62, 80992 München/Munich, Germany; (S.A.J.V.); (M.S.)
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25
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Changes in Body Composition and Biochemical Parameters Following Laparoscopic One Anastomosis Gastric Bypass: 1-Year Follow-Up. Obes Surg 2020; 31:232-238. [PMID: 32892256 DOI: 10.1007/s11695-020-04901-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND/AIM Little data is available on body composition and biochemical parameter changes after one anastomosis gastric bypass (OAGB) surgery. This study was therefore conducted to assess body composition and biochemical parameter changes in patients who underwent OAGB. The relationship between the percentage of total weight loss (%TWL) with percentage changes in body composition and biochemical parameters was measured in the first year after surgery. MATERIALS AND METHODS This retrospective study was carried out on 363 patients (mean age 39.93 ± 9.98 years) who underwent OAGB between January 2011 and November 2018. Anthropometric, body composition and biochemical measurements were recorded before and 1 year after surgery. For paired data, a paired sample t test or Wilcoxon test was used. Spearman or Pearson correlation test was used to evaluate the relationship between % TWL and changes in body composition and biochemical parameters. RESULTS The average %TWL at 1 year following surgery was 35.72 ± 6.85. Fat and muscle tissue and also serum levels of glycemic parameters, low density lipoprotein, triglycerides (TG), total cholesterol, zinc, albumin, hemoglobin, hematocrit, and platelet had decreased a year after OAGB (P < 0.05). The postoperative levels of HDL-c, vitamins D, B12, and folic acid were dramatically higher than the preoperative values. Higher %TWL significantly correlated to greater decreases in body fat, muscle mass, and serum TG at 1 year post-surgery, compared to preoperative values. CONCLUSION OAGB may be effective over a follow-up period of 1 year in achieving weight, fat mass reduction, and improved serum levels of glycemic parameters and lipid profiles.
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26
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Le Bacquer O, Lanchais K, Combe K, Van Den Berghe L, Walrand S. Acute rimonabant treatment promotes protein synthesis in C2C12 myotubes through a CB1-independent mechanism. J Cell Physiol 2020; 236:2669-2683. [PMID: 32885412 DOI: 10.1002/jcp.30034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 08/06/2020] [Accepted: 08/19/2020] [Indexed: 12/15/2022]
Abstract
Sarcopenia is an age-related loss of muscle mass associated with changes in skeletal muscle protein homeostasis due to lipid accumulation and anabolic resistance; changes that are also commonly described in obesity. Activation of the endocannabinoid system is associated with the development of obesity and insulin resistance, and with the perturbed skeletal muscle development. Taken together this suggests that endocannabinoids could be regulators of skeletal muscle protein homeostasis. Here we report that rimonabant, an antagonist for the CB1 receptor, can prevent dexamethasone-induced C2C12 myotube atrophy without affecting the mRNA expression of atrogin-1/MAFbx (a marker of proteolysis), which suggests it is involved in the control of protein synthesis. Rimonabant alone stimulates protein synthesis in a time- and dose-dependent manner through mTOR- and intracellular calcium-dependent mechanisms. CB1 agonists are unable to modulate protein synthesis or prevent the effect of rimonabant. Using C2C12 cells stably expressing an shRNA directed against CB1, or HEK293 cells overexpressing HA-tagged CB1, we demonstrated that the effect of rimonabant is unaffected by CB1 expression level. In summary, rimonabant can stimulate protein synthesis in C2C12 myotubes through a CB1-independent mechanism. These results highlight the need to identify non-CB1 receptor(s) mediating the pro-anabolic effect of rimonabant as potential targets for the treatment of sarcopenia, and to design new side-effect-free molecules that consolidate the effect of rimonabant on skeletal muscle protein synthesis.
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Affiliation(s)
- Olivier Le Bacquer
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine (UNH), Clermont-Ferrand, France
| | - Kassandra Lanchais
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine (UNH), Clermont-Ferrand, France
| | - Kristell Combe
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine (UNH), Clermont-Ferrand, France
| | | | - Stéphane Walrand
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine (UNH), Clermont-Ferrand, France.,CHU Clermont-Ferrand, Service de Nutrition Clinique, Hôpital Gabriel Montpied, Clermont-Ferrand, France
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27
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Transcriptional Changes Involved in Atrophying Muscles during Prolonged Fasting in Rats. Int J Mol Sci 2020; 21:ijms21175984. [PMID: 32825252 PMCID: PMC7503389 DOI: 10.3390/ijms21175984] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022] Open
Abstract
Food deprivation resulting in muscle atrophy may be detrimental to health. To better understand how muscle mass is regulated during such a nutritional challenge, the current study deciphered muscle responses during phase 2 (P2, protein sparing) and phase 3 (P3, protein mobilization) of prolonged fasting in rats. This was done using transcriptomics analysis and a series of biochemistry measurements. The main findings highlight changes for plasma catabolic and anabolic stimuli, as well as for muscle transcriptome, energy metabolism, and oxidative stress. Changes were generally consistent with the intense use of lipids as fuels during P2. They also reflected increased muscle protein degradation and repressed synthesis, in a more marked manner during P3 than P2 compared to the fed state. Nevertheless, several unexpected changes appeared to be in favor of muscle protein synthesis during fasting, notably at the level of the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway, transcription and translation processes, and the response to oxidative stress. Such mechanisms might promote protein sparing during P2 and prepare the restoration of the protein compartment during P3 in anticipation of food intake for optimizing the effects of an upcoming refeeding, thereby promoting body maintenance and survival. Future studies should examine relevance of such targets for improving nitrogen balance during catabolic diseases.
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28
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Noguchi M, Kitakaze T, Kobayashi Y, Mukai K, Harada N, Yamaji R. β-Cryptoxanthin Improves p62 Accumulation and Muscle Atrophy in the Soleus Muscle of Senescence-Accelerated Mouse-Prone 1 Mice. Nutrients 2020; 12:nu12082180. [PMID: 32708051 PMCID: PMC7468743 DOI: 10.3390/nu12082180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/15/2020] [Accepted: 07/21/2020] [Indexed: 12/25/2022] Open
Abstract
We investigated the effects of β-cryptoxanthin on skeletal muscle atrophy in senescence-accelerated mouse-prone 1 (SAMP1) mice. For 15 weeks, SAMP1 mice were intragastrically administered vehicle or β-cryptoxanthin. At 35 weeks of age, the skeletal muscle mass in SAMP1 mice was reduced compared with that in control senescence-accelerated mouse-resistant 1 (SAMR1) mice. β-cryptoxanthin increased muscle mass with an increase in the size of muscle fibers in the soleus muscle of SAMP1 mice. The expressions of autophagy-related factors such as beclin-1, p62, LC3-I, and LC3-II were increased in the soleus muscle of SAMP1 mice; however, β-cryptoxanthin administration inhibited this increase. Unlike in SAMR1 mice, p62 was punctately distributed throughout the cytosol in the soleus muscle fibers of SAMP1 mice; however, β-cryptoxanthin inhibited this punctate distribution. The cross-sectional area of p62-positive fiber was smaller than that of p62-negative fiber, and the ratio of p62-positive fibers to p62-negative fibers was increased in SAMP1 mice. β-cryptoxanthin decreased this ratio in SAMP1 mice. Furthermore, β-cryptoxanthin decreased the autophagy-related factor expression in murine C2C12 myotube. The autophagy inhibitor bafilomycin A1, but not the proteasome inhibitor MG132, inhibited the β-cryptoxanthin-induced decrease in p62 and LC3-II expressions. These results indicate that β-cryptoxanthin inhibits the p62 accumulation in fibers and improves muscle atrophy in the soleus muscle of SAMP1 mice.
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Affiliation(s)
- Mari Noguchi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan; (M.N.); (T.K.); (Y.K.); (N.H.)
| | - Tomoya Kitakaze
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan; (M.N.); (T.K.); (Y.K.); (N.H.)
| | - Yasuyuki Kobayashi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan; (M.N.); (T.K.); (Y.K.); (N.H.)
| | - Katsuyuki Mukai
- Daicel Corporation, Konan, Minato-ku, Tokyo 108-0075, Japan;
| | - Naoki Harada
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan; (M.N.); (T.K.); (Y.K.); (N.H.)
| | - Ryoichi Yamaji
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan; (M.N.); (T.K.); (Y.K.); (N.H.)
- Correspondence: ; Tel.: +81-722-54-9453
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29
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Gupta P, Dutt V, Kaur N, Kalra P, Gupta S, Dua A, Dabur R, Saini V, Mittal A. S-allyl cysteine: A potential compound against skeletal muscle atrophy. Biochim Biophys Acta Gen Subj 2020; 1864:129676. [PMID: 32649980 DOI: 10.1016/j.bbagen.2020.129676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/03/2020] [Accepted: 06/25/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Oxidative stress is crucial player in skeletal muscle atrophy pathogenesis. S-allyl cysteine (SAC), an organosulfur compound of Allium sativum, possesses broad-spectrum properties including immuno- and redox-modulatory impact. Considering the role of SAC in regulating redox balance, we hypothesize that SAC may have a protective role in oxidative-stress induced atrophy. METHODS C2C12 myotubes were treated with H2O2 (100 μM) in the presence or absence of SAC (200 μM) to study morphology, redox status, inflammatory cytokines and proteolytic systems using fluorescence microscopy, biochemical analysis, real-time PCR and immunoblotting approaches. The anti-atrophic potential of SAC was confirmed in denervation-induced atrophy model. RESULTS SAC pre-incubation (4 h) could protect the myotube morphology (i.e. length/diameter/fusion index) from atrophic effects of H2O2. Lower levels of ROS, lipid peroxidation, oxidized glutathione and altered antioxidant enzymes were observed in H2O2-exposed cells upon pre-treatment with SAC. SAC supplementation also suppressed the rise in cytokines levels (TWEAK/IL6/myostatin) caused by H2O2. SAC treatment also moderated the degradation of muscle-specific proteins (MHCf) in the H2O2-treated myotubes supported by lower induction of diverse proteolytic systems (i.e. cathepsin, calpain, ubiquitin-proteasome E3-ligases, caspase-3, autophagy). Denervation-induced atrophy in mice illustrates that SAC administration alleviates the negative effects (i.e. mass loss, decreased cross-sectional area, up-regulation of proteolytic systems, and degradation of total/specific protein) of denervation on muscles. CONCLUSIONS SAC exerts significant anti-atrophic effects to protect myotubes from H2O2-induced protein loss and myofibers from denervation-induced muscle loss, due to the prevention of elevated proteolytic systems and inflammatory/oxidative molecules. GENERAL SIGNIFICANCE The results signify the potential of SAC against muscle atrophy.
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Affiliation(s)
- Prachi Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Vikas Dutt
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Nirmaljeet Kaur
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Priya Kalra
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Sanjeev Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Anita Dua
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Rajesh Dabur
- Biochemistry Department, MD University, Rohtak, Haryana 124001, India
| | - Vikram Saini
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Ashwani Mittal
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India.
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30
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Arneson-Wissink PC, Hogan KA, Ducharme AM, Samani A, Jatoi A, Doles JD. The wasting-associated metabolite succinate disrupts myogenesis and impairs skeletal muscle regeneration. JCSM RAPID COMMUNICATIONS 2020; 3:56-69. [PMID: 32905522 PMCID: PMC7470228 DOI: 10.1002/rco2.14] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
BACKGROUND Muscle wasting is a debilitating co-morbidity affecting most advanced cancer patients. Alongside enhanced muscle catabolism, defects in muscle repair/regeneration contribute to cancer-associated wasting. Among the factors implicated in suppression of muscle regeneration are cytokines that interfere with myogenic signal transduction pathways. Less understood is how other cancer/wasting-associated cues, such as metabolites, contribute to muscle dysfunction. This study investigates how the metabolite succinate affects myogenesis and muscle regeneration. METHODS We leveraged an established ectopic metabolite treatment (cell permeable dimethyl-succinate) strategy to evaluate the ability of intracellular succinate elevation to 1) affect myoblast homeostasis (proliferation, apoptosis), 2) disrupt protein dynamics and induce wasting-associated atrophy, and 3) modulate in vitro myogenesis. In vivo succinate supplementation experiments (2% succinate, 1% sucrose vehicle) were used to corroborate and extend in vitro observations. Metabolic profiling and functional metabolic studies were then performed to investigate the impact of succinate elevation on mitochondria function. RESULTS We found that in vitro succinate supplementation elevated intracellular succinate about 2-fold, and did not have an impact on proliferation or apoptosis of C2C12 myoblasts. Elevated succinate had minor effects on protein homeostasis (~25% decrease in protein synthesis assessed by OPP staining), and no significant effect on myotube atrophy. Succinate elevation interfered with in vitro myoblast differentiation, characterized by significant decreases in late markers of myogenesis and fewer nuclei per myosin heavy chain positive structure (assessed by immunofluorescence staining). While mice orally administered succinate did not exhibit changes in overall body composition or whole muscle weights, these mice displayed smaller muscle myofiber diameters (~6% decrease in the mean of non-linear regression curves fit to the histograms of minimum feret diameter distribution), which was exacerbated when muscle regeneration was induced with barium chloride injury. Significant decreases in the mean of non-linear regression curves fit to the histograms of minimum feret diameter distributions were observed 7 days and 28 days post injury. Elevated numbers of myogenin positive cells (3-fold increase) supportive of the differentiation defects observed in vitro were observed 28 days post injury. Metabolic profiling and functional metabolic assessment of myoblasts revealed that succinate elevation caused both widespread metabolic changes and significantly lowered maximal cellular respiration (~35% decrease). CONCLUSIONS This study broadens the repertoire of wasting-associated factors that can directly modulate muscle progenitor cell function and strengthens the hypothesis that metabolic derangements are significant contributors to impaired muscle regeneration, an important aspect of cancer-associated muscle wasting.
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Affiliation(s)
- Paige C Arneson-Wissink
- Department of Biochemistry and Molecular Biology, Mayo
Clinic, Rochester, Minnesota, 55905 USA
| | - Kelly A Hogan
- Department of Biochemistry and Molecular Biology, Mayo
Clinic, Rochester, Minnesota, 55905 USA
| | - Alexandra M Ducharme
- Department of Biochemistry and Molecular Biology, Mayo
Clinic, Rochester, Minnesota, 55905 USA
| | - Adrienne Samani
- Department of Biochemistry and Molecular Biology, Mayo
Clinic, Rochester, Minnesota, 55905 USA
| | - Aminah Jatoi
- Department of Oncology, Mayo Clinic, Rochester,
Minnesota
| | - Jason D Doles
- Department of Biochemistry and Molecular Biology, Mayo
Clinic, Rochester, Minnesota, 55905 USA
- Corresponding Author: Jason D Doles, Department of
Biochemistry and Molecular Biology, Mayo Clinic, 200 First St SW, Guggenheim
16-11A1, Rochester, MN 55905, Tel: (507) 284-9372, Fax: (507) 284-3383,
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31
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Bagchi D, Mason BD, Baldino K, Li B, Lee EJ, Zhang Y, Chu LK, El Raheb S, Sinha I, Neppl RL. Adult-Onset Myopathy with Constitutive Activation of Akt following the Loss of hnRNP-U. iScience 2020; 23:101319. [PMID: 32659719 PMCID: PMC7358745 DOI: 10.1016/j.isci.2020.101319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/30/2020] [Accepted: 06/24/2020] [Indexed: 01/03/2023] Open
Abstract
Skeletal muscle has the remarkable ability to modulate its mass in response to changes in nutritional input, functional utilization, systemic disease, and age. This is achieved by the coordination of transcriptional and post-transcriptional networks and the signaling cascades balancing anabolic and catabolic processes with energy and nutrient availability. The extent to which alternative splicing regulates these signaling networks is uncertain. Here we investigate the role of the RNA-binding protein hnRNP-U on the expression and splicing of genes and the signaling processes regulating skeletal muscle hypertrophic growth. Muscle-specific Hnrnpu knockout (mKO) mice develop an adult-onset myopathy characterized by the selective atrophy of glycolytic muscle, the constitutive activation of Akt, increases in cellular and metabolic stress gene expression, and changes in the expression and splicing of metabolic and signal transduction genes. These findings link Hnrnpu with the balance between anabolic signaling, cellular and metabolic stress, and physiological growth. Hnrnpu mKO mice develop adult-onset myopathy with selective glycolytic muscle atrophy Akt is constitutively active in the atrophied muscles of Hnrnpu mKO mice Hnrnpu mutants show altered gene expression and alternative splicing patterns Induction of genes associated with cellular and metabolic stress
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Affiliation(s)
- Debalina Bagchi
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Benjamin D Mason
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Kodilichi Baldino
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Bin Li
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Eun-Joo Lee
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Yuteng Zhang
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Linh Khanh Chu
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Sherif El Raheb
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Indranil Sinha
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Ronald L Neppl
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
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32
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Pérez-Rial S, Barreiro E, Fernández-Aceñero MJ, Fernández-Valle ME, González-Mangado N, Peces-Barba G. Early detection of skeletal muscle bioenergetic deficit by magnetic resonance spectroscopy in cigarette smoke-exposed mice. PLoS One 2020; 15:e0234606. [PMID: 32569331 PMCID: PMC7307759 DOI: 10.1371/journal.pone.0234606] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 05/29/2020] [Indexed: 12/28/2022] Open
Abstract
Skeletal muscle dysfunction is a common complication and an important prognostic factor in patients with chronic obstructive pulmonary disease (COPD). It is associated with intrinsic muscular abnormalities of the lower extremities, but it is not known whether there is an easy way to predict its presence. Using a mouse model of chronic cigarette smoke exposure, we tested the hypothesis that magnetic resonance spectroscopy allows us to detect muscle bioenergetic deficit in early stages of lung disease. We employed this technique to evaluate the synthesis rate of adenosine triphosphate (ATP) and characterize concomitant mitochondrial dynamics patterns in the gastrocnemius muscle of emphysematous mice. The fibers type composition and citrate synthase (CtS) and cytochrome c oxidase subunit IV (COX4) enzymatic activities were evaluated. We found that the rate of ATP synthesis was reduced in the distal skeletal muscle of mice exposed to cigarette smoke. Emphysematous mice showed a significant reduction in body weight gain, in the cross-sectional area of the total fiber and in the COX4 to CtS activity ratio, due to a significant increase in CtS activity of the gastrocnemius muscle. Taken together, these data support the hypothesis that in the early stage of lung disease, we can detect a decrease in ATP synthesis in skeletal muscle, partly caused by high oxidative mitochondrial enzyme activity. These findings may be relevant to predict the presence of skeletal bioenergetic deficit in the early stage of lung disease besides placing the mitochondria as a potential therapeutic target for the treatment of COPD comorbidities.
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Affiliation(s)
- Sandra Pérez-Rial
- Respiratory Research Unit, Biomedical Research Institute—Fundación Jiménez Díaz, Madrid, Spain
- Consorcio Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, M.P (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Esther Barreiro
- Consorcio Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, M.P (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Respiratory Medicine Department—Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, Institute of Medical Research of Hospital del Mar, Barcelona Biomedical Research Park, Barcelona, Spain
| | | | | | - Nicolás González-Mangado
- Respiratory Research Unit, Biomedical Research Institute—Fundación Jiménez Díaz, Madrid, Spain
- Consorcio Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, M.P (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Germán Peces-Barba
- Respiratory Research Unit, Biomedical Research Institute—Fundación Jiménez Díaz, Madrid, Spain
- Consorcio Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, M.P (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
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33
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Ly CH, Lynch GS, Ryall JG. A Metabolic Roadmap for Somatic Stem Cell Fate. Cell Metab 2020; 31:1052-1067. [PMID: 32433923 DOI: 10.1016/j.cmet.2020.04.022] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 02/13/2020] [Accepted: 04/29/2020] [Indexed: 01/14/2023]
Abstract
While metabolism was initially thought to play a passive role in cell biology by generating ATP to meet bioenergetic demands, recent studies have identified critical roles for metabolism in the generation of new biomass and provision of obligate substrates for the epigenetic modification of histones and DNA. This review details how metabolites generated through glycolysis and the tricarboxylic acid cycle are utilized by somatic stem cells to support cell proliferation and lineage commitment. Importantly, we also discuss the evolving hypothesis that histones can act as an energy reservoir during times of energy stress. Finally, we discuss how cells integrate both extrinsic metabolic cues and intrinsic metabolic machinery to regulate cell fate.
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Affiliation(s)
- C Hai Ly
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - James G Ryall
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Melbourne, VIC 3010, Australia.
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34
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Xi H, Langerman J, Sabri S, Chien P, Young CS, Younesi S, Hicks M, Gonzalez K, Fujiwara W, Marzi J, Liebscher S, Spencer M, Van Handel B, Evseenko D, Schenke-Layland K, Plath K, Pyle AD. A Human Skeletal Muscle Atlas Identifies the Trajectories of Stem and Progenitor Cells across Development and from Human Pluripotent Stem Cells. Cell Stem Cell 2020; 27:158-176.e10. [PMID: 32396864 PMCID: PMC7367475 DOI: 10.1016/j.stem.2020.04.017] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 03/12/2020] [Accepted: 04/23/2020] [Indexed: 12/17/2022]
Abstract
The developmental trajectory of human skeletal myogenesis and the transition between progenitor and stem cell states are unclear. We used single-cell RNA sequencing to profile human skeletal muscle tissues from embryonic, fetal, and postnatal stages. In silico, we identified myogenic as well as other cell types and constructed a "roadmap" of human skeletal muscle ontogeny across development. In a similar fashion, we also profiled the heterogeneous cell cultures generated from multiple human pluripotent stem cell (hPSC) myogenic differentiation protocols and mapped hPSC-derived myogenic progenitors to an embryonic-to-fetal transition period. We found differentially enriched biological processes and discovered co-regulated gene networks and transcription factors present at distinct myogenic stages. This work serves as a resource for advancing our knowledge of human myogenesis. It also provides a tool for a better understanding of hPSC-derived myogenic progenitors for translational applications in skeletal muscle-based regenerative medicine.
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Affiliation(s)
- Haibin Xi
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA
| | - Justin Langerman
- Deparment of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Shan Sabri
- Deparment of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Peggie Chien
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Courtney S Young
- Department of Neurology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Shahab Younesi
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA
| | - Michael Hicks
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA
| | - Karen Gonzalez
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Wakana Fujiwara
- Department of Biochemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - Julia Marzi
- Department of Women's Health, Research Institute for Women's Health, Eberhard Karls University Tübingen, Tübingen, Germany; The Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany
| | - Simone Liebscher
- Department of Women's Health, Research Institute for Women's Health, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Melissa Spencer
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA; Department of Neurology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ben Van Handel
- Department of Orthopaedic Surgery, Keck School of Medicine, Stem Cell Research and Regenerative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Denis Evseenko
- Department of Orthopaedic Surgery, Keck School of Medicine, Stem Cell Research and Regenerative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Katja Schenke-Layland
- Department of Women's Health, Research Institute for Women's Health, Eberhard Karls University Tübingen, Tübingen, Germany; The Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany; Department of Medicine/Cardiology, Cardiovascular Research Laboratories, University of California, Los Angeles, Los Angeles, CA, USA
| | - Kathrin Plath
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA; Deparment of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA, USA.
| | - April D Pyle
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA, USA.
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35
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Lin C, Han G, Ning H, Song J, Ran N, Yi X, Seow Y, Yin H. Glycine Enhances Satellite Cell Proliferation, Cell Transplantation, and Oligonucleotide Efficacy in Dystrophic Muscle. Mol Ther 2020; 28:1339-1358. [PMID: 32209436 DOI: 10.1016/j.ymthe.2020.03.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/10/2020] [Accepted: 03/05/2020] [Indexed: 12/25/2022] Open
Abstract
The need to distribute therapy evenly systemically throughout the large muscle volume within the body makes Duchenne muscular dystrophy (DMD) therapy a challenge. Cell and exon-skipping therapies are promising but have limited effects, and thus enhancing their therapeutic potency is of paramount importance to increase the accessibility of these therapies to DMD patients. In this study, we demonstrate that co-administered glycine improves phosphorodiamidate morpholino oligomer (PMO) potency in mdx mice with marked functional improvement and an up to 50-fold increase of dystrophin in abdominal muscles compared to PMO in saline. Glycine boosts satellite cell proliferation and muscle regeneration by increasing activation of mammalian target of rapamycin complex 1 (mTORC1) and replenishing the one-carbon unit pool. The expanded regenerating myofiber population then results in increased PMO uptake. Glycine also augments the transplantation efficiency of exogenous satellite cells and primary myoblasts in mdx mice. Our data provide evidence that glycine enhances satellite cell proliferation, cell transplantation, and oligonucleotide efficacy in mdx mice, and thus it has therapeutic utility for cell therapy and drug delivery in muscle-wasting diseases.
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Affiliation(s)
- Caorui Lin
- Tianjin Key Laboratory of Cellular Homeostasis and Human Diseases, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road, Heping District, Tianjin 300070, China
| | - Gang Han
- School of Medical Laboratory, Tianjin Medical University, Guangdong Road, Tianjin 300203, China
| | - Hanhan Ning
- Tianjin Key Laboratory of Cellular Homeostasis and Human Diseases, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road, Heping District, Tianjin 300070, China
| | - Jun Song
- Tianjin Key Laboratory of Cellular Homeostasis and Human Diseases, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road, Heping District, Tianjin 300070, China
| | - Ning Ran
- Tianjin Key Laboratory of Cellular Homeostasis and Human Diseases, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road, Heping District, Tianjin 300070, China
| | - Xianfu Yi
- School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Yiqi Seow
- Molecular Engineering Laboratory, Biomedical Sciences Institutes, Agency for Science Technology and Research, 61 Biopolis Way, Singapore 138668, Singapore
| | - HaiFang Yin
- Tianjin Key Laboratory of Cellular Homeostasis and Human Diseases, Department of Cell Biology, Tianjin Medical University, Qixiangtai Road, Heping District, Tianjin 300070, China.
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36
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Kitakaze T, Yoshikawa M, Kobayashi Y, Kimura N, Goshima N, Ishikawa T, Ogata Y, Yamashita Y, Ashida H, Harada N, Yamaji R. Extracellular transglutaminase 2 induces myotube hypertrophy through G protein-coupled receptor 56. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2020; 1867:118563. [PMID: 31666191 DOI: 10.1016/j.bbamcr.2019.118563] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 12/15/2022]
Abstract
Skeletal muscle secretes biologically active proteins that contribute to muscle hypertrophy in response to either exercise or dietary intake. The identification of skeletal muscle-secreted proteins that induces hypertrophy can provide critical information regarding skeletal muscle health. Dietary provitamin A, β-carotene, induces hypertrophy of the soleus muscle in mice. Here, we hypothesized that skeletal muscle produces hypertrophy-inducible secretory proteins via dietary β-carotene. Knockdown of retinoic acid receptor (RAR) γ inhibited the β-carotene-induced increase soleus muscle mass in mice. Using RNA sequencing, bioinformatic analyses, and literature searching, we predicted transglutaminase 2 (TG2) to be an all-trans retinoic acid (ATRA)-induced secretory protein in cultured C2C12 myotubes. Tg2 mRNA expression increased in ATRA- or β-carotene-stimulated myotubes and in the soleus muscle of β-carotene-treated mice. Knockdown of RARγ inhibited β-carotene-increased mRNA expression of Tg2 in the soleus muscle. ATRA increased endogenous TG2 levels in conditioned medium from myotubes. Extracellular TG2 promoted the phosphorylation of Akt, mechanistic target of rapamycin (mTOR), and ribosomal p70 S6 kinase (p70S6K), and inhibitors of mTOR, phosphatidylinositol 3-kinase, and Src (rapamycin, LY294002, and Src I1, respectively) inhibited TG2-increased phosphorylation of mTOR and p70S6K. Furthermore, extracellular TG2 promoted protein synthesis and hypertrophy in myotubes. TG2 mutant lacking transglutaminase activity exerted the same effects as wild-type TG2. Knockdown of G protein-coupled receptor 56 (GPR56) inhibited the effects of TG2 on mTOR signaling, protein synthesis, and hypertrophy. These results indicated that TG2 expression was upregulated through ATRA-mediated RARγ and that extracellular TG2 induced myotube hypertrophy by activating mTOR signaling-mediated protein synthesis through GPR56, independent of transglutaminase activity.
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MESH Headings
- Animals
- Cell Enlargement/drug effects
- Cell Line
- GTP-Binding Proteins/genetics
- GTP-Binding Proteins/metabolism
- Insulin-Like Growth Factor I/genetics
- Insulin-Like Growth Factor I/metabolism
- Mice
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Myoblasts/cytology
- Myoblasts/metabolism
- Phosphorylation/drug effects
- Protein Glutamine gamma Glutamyltransferase 2
- Proto-Oncogene Proteins c-akt/metabolism
- RNA Interference
- RNA, Small Interfering/metabolism
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/metabolism
- Receptors, Retinoic Acid/antagonists & inhibitors
- Receptors, Retinoic Acid/genetics
- Receptors, Retinoic Acid/metabolism
- Retinoic Acid Receptor alpha/antagonists & inhibitors
- Retinoic Acid Receptor alpha/genetics
- Retinoic Acid Receptor alpha/metabolism
- Ribosomal Protein S6 Kinases, 70-kDa/metabolism
- Signal Transduction/drug effects
- TOR Serine-Threonine Kinases/metabolism
- Transglutaminases/genetics
- Transglutaminases/metabolism
- Tretinoin/pharmacology
- beta Carotene/administration & dosage
- beta Carotene/pharmacology
- Retinoic Acid Receptor gamma
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Affiliation(s)
- Tomoya Kitakaze
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan; Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Miki Yoshikawa
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Yasuyuki Kobayashi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Naohiro Kimura
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Naoki Goshima
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Takahiro Ishikawa
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, Shimane, Japan
| | - Yoshiyuki Ogata
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Yoko Yamashita
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Hitoshi Ashida
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Naoki Harada
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Ryoichi Yamaji
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan.
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37
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Mukund K, Subramaniam S. Skeletal muscle: A review of molecular structure and function, in health and disease. WILEY INTERDISCIPLINARY REVIEWS. SYSTEMS BIOLOGY AND MEDICINE 2020; 12:e1462. [PMID: 31407867 PMCID: PMC6916202 DOI: 10.1002/wsbm.1462] [Citation(s) in RCA: 216] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/03/2019] [Accepted: 07/03/2019] [Indexed: 12/11/2022]
Abstract
Decades of research in skeletal muscle physiology have provided multiscale insights into the structural and functional complexity of this important anatomical tissue, designed to accomplish the task of generating contraction, force and movement. Skeletal muscle can be viewed as a biomechanical device with various interacting components including the autonomic nerves for impulse transmission, vasculature for efficient oxygenation, and embedded regulatory and metabolic machinery for maintaining cellular homeostasis. The "omics" revolution has propelled a new era in muscle research, allowing us to discern minute details of molecular cross-talk required for effective coordination between the myriad interacting components for efficient muscle function. The objective of this review is to provide a systems-level, comprehensive mapping the molecular mechanisms underlying skeletal muscle structure and function, in health and disease. We begin this review with a focus on molecular mechanisms underlying muscle tissue development (myogenesis), with an emphasis on satellite cells and muscle regeneration. We next review the molecular structure and mechanisms underlying the many structural components of the muscle: neuromuscular junction, sarcomere, cytoskeleton, extracellular matrix, and vasculature surrounding muscle. We highlight aberrant molecular mechanisms and their possible clinical or pathophysiological relevance. We particularly emphasize the impact of environmental stressors (inflammation and oxidative stress) in contributing to muscle pathophysiology including atrophy, hypertrophy, and fibrosis. This article is categorized under: Physiology > Mammalian Physiology in Health and Disease Developmental Biology > Developmental Processes in Health and Disease Models of Systems Properties and Processes > Cellular Models.
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Affiliation(s)
- Kavitha Mukund
- Department of BioengineeringUniversity of CaliforniaSan DiegoCalifornia
| | - Shankar Subramaniam
- Department of Bioengineering, Bioinformatics & Systems BiologyUniversity of CaliforniaSan DiegoCalifornia
- Department of Computer Science and EngineeringUniversity of CaliforniaSan DiegoCalifornia
- Department of Cellular and Molecular Medicine and NanoengineeringUniversity of CaliforniaSan DiegoCalifornia
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38
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Purohit G, Dhawan J. Adult Muscle Stem Cells: Exploring the Links Between Systemic and Cellular Metabolism. Front Cell Dev Biol 2019; 7:312. [PMID: 31921837 PMCID: PMC6915107 DOI: 10.3389/fcell.2019.00312] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 11/15/2019] [Indexed: 12/13/2022] Open
Abstract
Emerging evidence suggests that metabolites are important regulators of skeletal muscle stem cell (MuSC) function and fate. While highly proliferative in early life, MuSCs reside in adult skeletal muscle tissue in a quiescent and metabolically depressed state, but are critical for the homeostatic maintenance and regenerative response of the tissue to damage. It is well established that metabolic activity in MuSC changes with their functional activation, but the spatiotemporal links between physiological metabolism and stem cell metabolism require explicit delineation. The quiescent MuSC is defined by a specific metabolic state, which is controlled by intrinsic and extrinsic factors during physiological and pathological tissue dynamics. However, the extent of tissue and organismal level changes driven by alteration in metabolic state of quiescent MuSC is currently not well defined. In addition to their role as biosynthetic precursors and signaling molecules, metabolites are key regulators of epigenetic mechanisms. Emerging evidence points to metabolic control of epigenetic mechanisms in MuSC and their impact on muscle regenerative capacity. In this review, we explore the links between cell-intrinsic, tissue level, and systemic metabolic state in the context of MuSC metabolic state, quiescence, and tissue homeostasis to highlight unanswered questions.
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Affiliation(s)
- Gunjan Purohit
- Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Jyotsna Dhawan
- Centre for Cellular and Molecular Biology, Hyderabad, India
- Institute for Stem Cell Science and Regenerative Medicine, Bengaluru, India
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39
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Nguyen JH, Chung JD, Lynch GS, Ryall JG. The Microenvironment Is a Critical Regulator of Muscle Stem Cell Activation and Proliferation. Front Cell Dev Biol 2019; 7:254. [PMID: 31737625 PMCID: PMC6828616 DOI: 10.3389/fcell.2019.00254] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 10/14/2019] [Indexed: 12/21/2022] Open
Abstract
Skeletal muscle has a remarkable capacity to regenerate following injury, a property conferred by a resident population of muscle stem cells (MuSCs). In response to injury, MuSCs must double their cellular content to divide, a process requiring significant new biomass in the form of nucleotides, phospholipids, and amino acids. This new biomass is derived from a series of intracellular metabolic cycles and alternative routing of carbon. In this review, we examine the link between metabolism and skeletal muscle regeneration with particular emphasis on the role of the cellular microenvironment in supporting the production of new biomass and MuSC proliferation.
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Affiliation(s)
- John H Nguyen
- Department of Physiology, Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, Australia
| | - Jin D Chung
- Department of Physiology, Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, Australia
| | - Gordon S Lynch
- Department of Physiology, Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, Australia
| | - James G Ryall
- Department of Physiology, Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, Australia
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40
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Davis HM, Essex AL, Valdez S, Deosthale PJ, Aref MW, Allen MR, Bonetto A, Plotkin LI. Short-term pharmacologic RAGE inhibition differentially affects bone and skeletal muscle in middle-aged mice. Bone 2019; 124:89-102. [PMID: 31028960 PMCID: PMC6543548 DOI: 10.1016/j.bone.2019.04.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/17/2019] [Accepted: 04/22/2019] [Indexed: 12/27/2022]
Abstract
Loss of bone and muscle mass are two major clinical complications among the growing list of chronic diseases that primarily affect elderly individuals. Persistent low-grade inflammation, one of the major drivers of aging, is also associated with both bone and muscle dysfunction in aging. Particularly, chronic activation of the receptor for advanced glycation end products (RAGE) and elevated levels of its ligands high mobility group box 1 (HMGB1), AGEs, S100 proteins and Aβ fibrils have been linked to bone and muscle loss in various pathologies. Further, genetic or pharmacologic RAGE inhibition has been shown to preserve both bone and muscle mass. However, whether short-term pharmacologic RAGE inhibition can prevent early bone and muscle loss in aging is unknown. To address this question, we treated young (4-mo) and middle-aged (15-mo) C57BL/6 female mice with vehicle or Azeliragon, a small-molecule RAGE inhibitor initially developed to treat Alzheimer's disease. Azeliragon did not prevent the aging-induced alterations in bone geometry or mechanics, likely due to its differential effects [direct vs. indirect] on bone cell viability/function. On the other hand, Azeliragon attenuated the aging-related body composition changes [fat and lean mass] and reversed the skeletal muscle alterations induced with aging. Interestingly, while Azeliragon induced similar metabolic changes in bone and skeletal muscle, aging differentially altered the expression of genes associated with glucose uptake/metabolism in these two tissues, highlighting a potential explanation for the differential effects of Azeliragon on bone and skeletal muscle in middle-aged mice. Overall, our findings suggest that while short-term pharmacologic RAGE inhibition did not protect against early aging-induced bone alterations, it prevented against the early effects of aging in skeletal muscle.
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Affiliation(s)
- Hannah M Davis
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Alyson L Essex
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Sinai Valdez
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America.
| | - Padmini J Deosthale
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Mohammad W Aref
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America.
| | - Matthew R Allen
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America; Roudebush Veterans Administration Medical Center, Indianapolis, IN, United States of America.
| | - Andrea Bonetto
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America; Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, United States of America.
| | - Lilian I Plotkin
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, United States of America; Indiana Center for Musculoskeletal Health, Indianapolis, IN, United States of America; Roudebush Veterans Administration Medical Center, Indianapolis, IN, United States of America.
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41
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Potes Y, Pérez-Martinez Z, Bermejo-Millo JC, Rubio-Gonzalez A, Fernandez-Fernández M, Bermudez M, Arche JM, Solano JJ, Boga JA, Oliván M, Caballero B, Vega-Naredo I, Coto-Montes A. Overweight in the Elderly Induces a Switch in Energy Metabolism that Undermines Muscle Integrity. Aging Dis 2019; 10:217-230. [PMID: 31011474 PMCID: PMC6457058 DOI: 10.14336/ad.2018.0430] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 04/30/2018] [Indexed: 12/19/2022] Open
Abstract
Aging is characterized by a progressive loss of skeletal muscle mass and function (sarcopenia). Obesity exacerbates age-related decline and lead to frailty. Skeletal muscle fat infiltration increases with aging and seems to be crucial for the progression of sarcopenia. Additionally, skeletal muscle plasticity modulates metabolic adaptation to different pathophysiological situations. Thus, cellular bioenergetics and mitochondrial profile were studied in the skeletal muscle of overweight aged people without reaching obesity to prevent this extreme situation. Overweight aged muscle lacked ATP production, as indicated by defects in the phosphagen system, glycolysis and especially mostly by oxidative phosphorylation metabolic pathway. Overweight subjects exhibited an inhibition of mitophagy that was linked to an increase in mitochondrial biogenesis that underlies the accumulation of dysfunctional mitochondria and encourages the onset of sarcopenia. As a strategy to maintain cellular homeostasis, overweight subjects experienced a metabolic switch from oxidative to lactic acid fermentation metabolism, which allows continued ATP production under mitochondrial dysfunction, but without reaching physiological aged basal levels. This ATP depletion induced early signs of impaired contractile function and a decline in skeletal muscle structural integrity, evidenced by lower levels of filamin C. Our findings reveal the main effector pathways at an early stage of obesity and highlight the importance of mitochondrial metabolism in overweight and obese individuals. Exploiting mitochondrial profiles for therapeutic purposes in humans is an ambitious strategy for treating muscle impairment diseases.
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Affiliation(s)
- Yaiza Potes
- 1Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Asturias, Spain.,2Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Spain
| | | | - Juan C Bermejo-Millo
- 1Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Asturias, Spain.,2Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Spain
| | - Adrian Rubio-Gonzalez
- 1Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Asturias, Spain
| | | | | | - Jose M Arche
- 4Geriatric Service, Monte Naranco Hospital, Asturias, Spain
| | - Juan J Solano
- 2Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Spain.,4Geriatric Service, Monte Naranco Hospital, Asturias, Spain
| | - Jose A Boga
- 3Microbiology Service, Central University Hospital of Asturias, Asturias, Spain
| | - Mamen Oliván
- 2Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Spain.,5Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Asturias, Spain
| | - Beatriz Caballero
- 1Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Asturias, Spain.,2Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Spain
| | - Ignacio Vega-Naredo
- 1Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Asturias, Spain.,2Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Spain
| | - Ana Coto-Montes
- 1Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Asturias, Spain.,2Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Spain
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Ono S, Yoshida N, Maekawa D, Kitakaze T, Kobayashi Y, Kitano T, Fujita T, Okuwa‐Hayashi H, Harada N, Nakano Y, Yamaji R. 5-Hydroxy-7-methoxyflavone derivatives from Kaempferia parviflora induce skeletal muscle hypertrophy. Food Sci Nutr 2019; 7:312-321. [PMID: 30680186 PMCID: PMC6341173 DOI: 10.1002/fsn3.891] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/29/2018] [Accepted: 11/03/2018] [Indexed: 12/24/2022] Open
Abstract
Skeletal muscle plays a critical role in locomotion and energy metabolism. Maintenance or enhancement of skeletal muscle mass contributes to the improvement of mobility and prevents the development of metabolic diseases. The extracts from Kaempferia parviflora rhizomes contain at least ten methoxyflavone derivatives that exhibit enhancing effects on ATP production and glucose uptake in skeletal muscle cells. In the present study, we investigated the effects of ten K. parviflora-derived methoxyflavone derivatives (six 5,7-dimethoxyflavone (DMF) derivatives and four 5-hydroxy-7-methoxyflavone (HMF) derivatives) on skeletal muscle hypertrophy. Murine C2C12 myotubes and senescence-accelerated mouse-prone 1 (SAMP1) mice treated with methoxyflavones were used as experimental models to determine the effects of HMF derivatives on myotube diameter and size and muscle mass. The four HMF derivatives, but not the six DMF derivatives, increased myotube diameter. The 5-hydroxyflavone, 7-methoxyflavone, and 5,7-dihydroxyflavone had no influence on myotube size, a result that differed from HMF. Dietary administration of the mixture composed of the four HMF derivatives resulted in increase in the soleus muscle size and mass in SAMP1 mice. HMF derivatives also promoted protein synthesis in myotubes, and treatment with the intracellular Ca2+ chelator BAPTA-AM, which depletes intracellular Ca2+ levels, inhibited this promotion. Furthermore, BAPTA-AM inhibited HMF-promoted protein synthesis even when myotubes were incubated in Ca2+-free medium. These results indicate that HMF derivatives induce myotube hypertrophy and that both the 5-hydroxyl group and the 7-methoxy group in the flavones are necessary for myotube hypertrophy. Furthermore, these results suggest that HMF-induced protein synthesis requires intracellular Ca2+, but not extracellular Ca2+.
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Affiliation(s)
- Shintaro Ono
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Naoki Yoshida
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Daisuke Maekawa
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Tomoya Kitakaze
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Yasuyuki Kobayashi
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Takehiro Kitano
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | | | - Hirotaka Okuwa‐Hayashi
- Japan Tablet CorporationUjiKyotoJapan
- Center for Research and Development of BioresourcesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Naoki Harada
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Yoshihisa Nakano
- Center for Research and Development of BioresourcesOsaka Prefecture UniversitySakaiOsakaJapan
| | - Ryoichi Yamaji
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture UniversitySakaiOsakaJapan
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43
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Ryan TE, Yamaguchi DJ, Schmidt CA, Zeczycki TN, Shaikh SR, Brophy P, Green TD, Tarpey MD, Karnekar R, Goldberg EJ, Sparagna GC, Torres MJ, Annex BH, Neufer PD, Spangenburg EE, McClung JM. Extensive skeletal muscle cell mitochondriopathy distinguishes critical limb ischemia patients from claudicants. JCI Insight 2018; 3:123235. [PMID: 30385731 DOI: 10.1172/jci.insight.123235] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 10/02/2018] [Indexed: 12/31/2022] Open
Abstract
The most severe manifestation of peripheral arterial disease (PAD) is critical limb ischemia (CLI). CLI patients suffer high rates of amputation and mortality; accordingly, there remains a clear need both to better understand CLI and to develop more effective treatments. Gastrocnemius muscle was obtained from 32 older (51-84 years) non-PAD controls, 27 claudicating PAD patients (ankle-brachial index [ABI] 0.65 ± 0.21 SD), and 19 CLI patients (ABI 0.35 ± 0.30 SD) for whole transcriptome sequencing and comprehensive mitochondrial phenotyping. Comparable permeabilized myofiber mitochondrial function was paralleled by both similar mitochondrial content and related mRNA expression profiles in non-PAD control and claudicating patient tissues. Tissues from CLI patients, despite being histologically intact and harboring equivalent mitochondrial content, presented a unique bioenergetic signature. This signature was defined by deficits in permeabilized myofiber mitochondrial function and a unique pattern of both nuclear and mitochondrial encoded gene suppression. Moreover, isolated muscle progenitor cells retained both mitochondrial functional deficits and gene suppression observed in the tissue. These findings indicate that muscle tissues from claudicating patients and non-PAD controls were similar in both their bioenergetics profile and mitochondrial phenotypes. In contrast, CLI patient limb skeletal muscles harbor a unique skeletal muscle mitochondriopathy that represents a potentially novel therapeutic site for intervention.
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Affiliation(s)
- Terence E Ryan
- Department of Physiology.,East Carolina Diabetes and Obesity Institute
| | | | - Cameron A Schmidt
- Department of Physiology.,East Carolina Diabetes and Obesity Institute
| | - Tonya N Zeczycki
- East Carolina Diabetes and Obesity Institute.,Department of Biochemistry and Molecular Biology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Thomas D Green
- Department of Physiology.,East Carolina Diabetes and Obesity Institute
| | - Michael D Tarpey
- Department of Physiology.,East Carolina Diabetes and Obesity Institute
| | - Reema Karnekar
- Department of Physiology.,East Carolina Diabetes and Obesity Institute
| | - Emma J Goldberg
- Department of Physiology.,East Carolina Diabetes and Obesity Institute
| | | | | | - Brian H Annex
- Division of Cardiovascular Medicine, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - P Darrell Neufer
- Department of Physiology.,East Carolina Diabetes and Obesity Institute
| | | | - Joseph M McClung
- Department of Physiology.,East Carolina Diabetes and Obesity Institute.,Department of Cardiovascular Sciences
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44
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Wackerhage H, Schoenfeld BJ, Hamilton DL, Lehti M, Hulmi JJ. Stimuli and sensors that initiate skeletal muscle hypertrophy following resistance exercise. J Appl Physiol (1985) 2018; 126:30-43. [PMID: 30335577 DOI: 10.1152/japplphysiol.00685.2018] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
One of the most striking adaptations to exercise is the skeletal muscle hypertrophy that occurs in response to resistance exercise. A large body of work shows that a mammalian target of rapamycin complex 1 (mTORC1)-mediated increase of muscle protein synthesis is the key, but not sole, mechanism by which resistance exercise causes muscle hypertrophy. While much of the hypertrophy signaling cascade has been identified, the initiating, resistance exercise-induced and hypertrophy-stimulating stimuli have remained elusive. For the purpose of this review, we define an initiating, resistance exercise-induced and hypertrophy-stimulating signal as "hypertrophy stimulus," and the sensor of such a signal as "hypertrophy sensor." In this review we discuss our current knowledge of specific mechanical stimuli, damage/injury-associated and metabolic stress-associated triggers, as potential hypertrophy stimuli. Mechanical signals are the prime hypertrophy stimuli candidates, and a filamin-C-BAG3-dependent regulation of mTORC1, Hippo, and autophagy signaling is a plausible albeit still incompletely characterized hypertrophy sensor. Other candidate mechanosensing mechanisms are nuclear deformation-initiated signaling or several mechanisms related to costameres, which are the functional equivalents of focal adhesions in other cells. While exercise-induced muscle damage is probably not essential for hypertrophy, it is still unclear whether and how such muscle damage could augment a hypertrophic response. Interventions that combine blood flow restriction and especially low load resistance exercise suggest that resistance exercise-regulated metabolites could be hypertrophy stimuli, but this is based on indirect evidence and metabolite candidates are poorly characterized.
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Affiliation(s)
- Henning Wackerhage
- Department of Sport and Exercise Sciences, Technical University of Munich , Munich , Germany
| | | | - D Lee Hamilton
- Faculty of Health, School of Exercise and Nutrition Sciences, Deakin University , Victoria , Australia
| | - Maarit Lehti
- LIKES Research Centre for Physical Activity and Health , Jyväskylä , Finland
| | - Juha J Hulmi
- Neuromuscular Research Center, Biology of Physical Activity, Faculty of Sport and Health Sciences, University of Jyväskylä , Jyväskylä , Finland
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45
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Theeuwes W, Gosker H, Langen R, Pansters N, Schols A, Remels A. Inactivation of glycogen synthase kinase 3β (GSK-3β) enhances mitochondrial biogenesis during myogenesis. Biochim Biophys Acta Mol Basis Dis 2018; 1864:2913-2926. [DOI: 10.1016/j.bbadis.2018.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/18/2018] [Accepted: 06/04/2018] [Indexed: 12/31/2022]
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46
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Bigford GE, Darr AJ, Bracchi-Ricard VC, Gao H, Nash MS, Bethea JR. Effects of ursolic acid on sub-lesional muscle pathology in a contusion model of spinal cord injury. PLoS One 2018; 13:e0203042. [PMID: 30157245 PMCID: PMC6114926 DOI: 10.1371/journal.pone.0203042] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 08/14/2018] [Indexed: 12/25/2022] Open
Abstract
Spinal Cord Injury (SCI) results in severe sub-lesional muscle atrophy and fiber type transformation from slow oxidative to fast glycolytic, both contributing to functional deficits and maladaptive metabolic profiles. Therapeutic countermeasures have had limited success and muscle-related pathology remains a clinical priority. mTOR signaling is known to play a critical role in skeletal muscle growth and metabolism, and signal integration of anabolic and catabolic pathways. Recent studies show that the natural compound ursolic acid (UA) enhances mTOR signaling intermediates, independently inhibiting atrophy and inducing hypertrophy. Here, we examine the effects of UA treatment on sub-lesional muscle mTOR signaling, catabolic genes, and functional deficits following severe SCI in mice. We observe that UA treatment significantly attenuates SCI induced decreases in activated forms of mTOR, and signaling intermediates PI3K, AKT, and S6K, and the upregulation of catabolic genes including FOXO1, MAFbx, MURF-1, and PSMD11. In addition, UA treatment improves SCI induced deficits in body and sub-lesional muscle mass, as well as functional outcomes related to muscle function, motor coordination, and strength. These findings provide evidence that UA treatment may be a potential therapeutic strategy to improve muscle-specific pathological consequences of SCI.
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Affiliation(s)
- Gregory E. Bigford
- The Miami Project to Cure Paralysis, Miami, Florida, United States of America
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Andrew J. Darr
- Department of Health Sciences Education, University of Illinois College of Medicine at Peoria, Peoria, Illinois, United States of America
| | | | - Han Gao
- The Miami Project to Cure Paralysis, Miami, Florida, United States of America
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - Mark S. Nash
- The Miami Project to Cure Paralysis, Miami, Florida, United States of America
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, United States of America
- Department of Rehabilitation Medicine, University of Miami Miller School of Medicine, Miami, Florida, United States of America
| | - John R. Bethea
- Department of Biology, Drexel University, Philadelphia, Pennsylvania, United States of America
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47
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Kneppers A, Leermakers P, Pansters N, Backx E, Gosker H, van Loon L, Schols A, Langen R, Verdijk L. Coordinated regulation of skeletal muscle mass and metabolic plasticity during recovery from disuse. FASEB J 2018; 33:1288-1298. [PMID: 30133324 DOI: 10.1096/fj.201701403rrr] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Skeletal muscle regeneration after disuse is essential for muscle maintenance and involves the regulation of both mass- and metabolic plasticity-related processes. However, the relation between these processes during recovery from disuse remains unclear. In this study, we explored the potential interrelationship between the molecular regulation of muscle mass and oxidative metabolism during recovery from disuse. Molecular profiles were measured in biopsies from the vastus lateralis of healthy men after 1-leg cast immobilization and after 1 wk reloading, and in mouse gastrocnemius obtained before and after hindlimb suspension and during reloading (RL-1, -2, -3, -5, and -8 d). Cluster analysis of the human recovery response revealed correlations between myogenesis and autophagy markers in 2 clusters, which were distinguished by the presence of markers of early myogenesis, autophagosome formation, and mitochondrial turnover vs. markers of late myogenesis, autophagy initiation, and mitochondrial mass. In line with these findings, an early transient increase in B-cell lymphoma-2 interacting protein-3 and sequestosome-1 protein, and GABA type A receptor-associated protein like-1 protein and mRNA and a late increase in myomaker and myosin heavy chain-8 mRNA, microtubule-associated protein 1 light chain 3-II:I ratio, and FUN14 domain-containing-1 mRNA and protein were observed in mice. In summary, the regulatory profiles of protein, mitochondrial, and myonuclear turnover are correlated and temporally associated, suggesting a coordinated regulation of muscle mass- and oxidative metabolism-related processes during recovery from disuse.-Kneppers, A., Leermakers, P., Pansters, N., Backx, E., Gosker, H., van Loon, L., Schols, A., Langen, R., Verdijk, L. Coordinated regulation of skeletal muscle mass and metabolic plasticity during recovery from disuse.
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Affiliation(s)
- Anita Kneppers
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands; and
| | - Pieter Leermakers
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands; and
| | - Nicholas Pansters
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands; and
| | - Evelien Backx
- Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Harry Gosker
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands; and
| | - Luc van Loon
- Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Annemie Schols
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands; and
| | - Ramon Langen
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands; and
| | - Lex Verdijk
- Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands
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48
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Intermittent living; the use of ancient challenges as a vaccine against the deleterious effects of modern life - A hypothesis. Med Hypotheses 2018; 120:28-42. [PMID: 30220336 DOI: 10.1016/j.mehy.2018.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/25/2018] [Accepted: 08/04/2018] [Indexed: 12/19/2022]
Abstract
Chronic non-communicable diseases (CNCD) are the leading cause of mortality in developed countries. They ensue from the sum of modern anthropogenic risk factors, including high calorie nutrition, malnutrition, sedentary lifestyle, social stress, environmental toxins, politics and economic factors. Many of these factors are beyond the span of control of individuals, suggesting that CNCD are inevitable. However, various studies, ours included, show that the use of intermittent challenges with hormetic effects improve subjective and objective wellbeing of individuals with CNCD, while having favourable effects on immunological, metabolic and behavioural indices. Intermittent cold, heat, fasting and hypoxia, together with phytochemicals in multiple food products, have widespread influence on many pathways related with overall health. Until recently, most of the employed challenges with hormetic effects belonged to the usual transient live experiences of our ancestors. Our hypothesis; we conclude that, whereas the total inflammatory load of multi-metabolic and psychological risk factors causes low grade inflammation and aging, the use of intermittent challenges, united in a 7-10 days lasting hormetic intervention, might serve as a vaccine against the deleterious effects of chronic low grade inflammation and it's metabolic and (premature) aging consequences.
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49
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Pala F, Di Girolamo D, Mella S, Yennek S, Chatre L, Ricchetti M, Tajbakhsh S. Distinct metabolic states govern skeletal muscle stem cell fates during prenatal and postnatal myogenesis. J Cell Sci 2018; 131:131/14/jcs212977. [PMID: 30054310 PMCID: PMC6080609 DOI: 10.1242/jcs.212977] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 04/18/2018] [Indexed: 12/19/2022] Open
Abstract
During growth, homeostasis and regeneration, stem cells are exposed to different energy demands. Here, we characterise the metabolic pathways that mediate the commitment and differentiation of mouse skeletal muscle stem cells, and how their modulation can influence the cell state. We show that quiescent satellite stem cells have low energetic demands and perturbed oxidative phosphorylation during ageing, which is also the case for cells from post-mortem tissues. We show also that myogenic fetal cells have distinct metabolic requirements compared to those proliferating during regeneration, with the former displaying a low respiration demand relying mostly on glycolysis. Furthermore, we show distinct requirements for peroxisomal and mitochondrial fatty acid oxidation (FAO) in myogenic cells. Compromising peroxisomal but not mitochondrial FAO promotes early differentiation of myogenic cells. Acute muscle injury and pharmacological block of peroxisomal and mitochondrial FAO expose differential requirements for these organelles during muscle regeneration. Taken together, these observations indicate that changes in myogenic cell state lead to significant alterations in metabolic requirements. In addition, perturbing specific metabolic pathways impacts on myogenic cell fates and the regeneration process. Summary: Distinct energy metabolism pathways act during mouse skeletal muscle stem cell commitment and differentiation in different physiological states.
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Affiliation(s)
- Francesca Pala
- Stem Cells and Development, Department of Developmental & Stem Cell Biology, Institut Pasteur, Paris 75015, France.,CNRS UMR 3738, Institut Pasteur, Paris 75015, France
| | - Daniela Di Girolamo
- Stem Cells and Development, Department of Developmental & Stem Cell Biology, Institut Pasteur, Paris 75015, France.,CNRS UMR 3738, Institut Pasteur, Paris 75015, France.,Dipartimento di Medicina Clinica e Chirurgia, Università degli Studi di Napoli "Federico II", Via S. Pansini 5, 80131 Napoli, Italy
| | - Sébastien Mella
- Stem Cells and Development, Department of Developmental & Stem Cell Biology, Institut Pasteur, Paris 75015, France.,CNRS UMR 3738, Institut Pasteur, Paris 75015, France
| | - Siham Yennek
- Stem Cells and Development, Department of Developmental & Stem Cell Biology, Institut Pasteur, Paris 75015, France.,CNRS UMR 3738, Institut Pasteur, Paris 75015, France
| | - Laurent Chatre
- CNRS UMR 3738, Institut Pasteur, Paris 75015, France.,Stem Cells and Development, Team Stability of Nuclear and Mitochondrial DNA, Department of Developmental & Stem Cell Biology, Institut Pasteur, Paris 75015, France
| | - Miria Ricchetti
- CNRS UMR 3738, Institut Pasteur, Paris 75015, France.,Stem Cells and Development, Team Stability of Nuclear and Mitochondrial DNA, Department of Developmental & Stem Cell Biology, Institut Pasteur, Paris 75015, France
| | - Shahragim Tajbakhsh
- Stem Cells and Development, Department of Developmental & Stem Cell Biology, Institut Pasteur, Paris 75015, France .,CNRS UMR 3738, Institut Pasteur, Paris 75015, France
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50
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Jang HJ, Lee JD, Jeon HS, Kim AR, Kim S, Lee HS, Kim KB. Metabolic Profiling of Eccentric Exercise-Induced Muscle Damage in Human Urine. Toxicol Res 2018; 34:199-210. [PMID: 30057694 PMCID: PMC6057290 DOI: 10.5487/tr.2018.34.3.199] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/29/2018] [Accepted: 05/14/2018] [Indexed: 12/12/2022] Open
Abstract
Skeletal muscle can be ultrastructurally damaged by eccentric exercise, and the damage causes metabolic disruption in muscle. This study aimed to determine changes in the metabolomic patterns in urine and metabolomic markers in muscle damage after eccentric exercise. Five men and 6 women aged 19~23 years performed 30 min of the bench step exercise at 70 steps per min at a determined step height of 110% of the lower leg length, and stepping frequency at 15 cycles per min. 1H NMR spectral analysis was performed in urine collected from all participants before and after eccentric exercise-induced muscle damage conventionally determined using a visual analogue scale (VAS) and maximal voluntary contraction (MVC). Urinary metabolic profiles were built by multivariate analysis of principal component analysis (PCA) and orthogonal partial least square-discriminant analysis (OPLS-DA) using SIMCA-P. From the OPLS-DA, men and women were separated 2 hr after the eccentric exercise and the separated patterns were maintained or clarified until 96 hr after the eccentric exercise. Subsequently, urinary metabolic profiles showed distinct trajectory patterns between men and women. Finally, we found increased urinary metabolites (men: alanine, asparagine, citrate, creatine phosphate, ethanol, formate, glucose, glycine, histidine, and lactate; women: adenine) after the eccentric exercise. These results could contribute to understanding metabolic responses following eccentric exercise-induced muscle damage in humans.
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Affiliation(s)
- Hyun-Jun Jang
- College of Pharmacy, Dankook University, Cheonan, Korea.,Department of Animal Biotechnology, Chonbuk National University, Jeonju, Korea
| | - Jung Dae Lee
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon, Korea
| | - Hyun-Sik Jeon
- Department of Kinesiologic Medical Science, Graduate School, Dankook University, Cheonan, Korea
| | - Ah-Ram Kim
- Department of Kinesiologic Medical Science, Graduate School, Dankook University, Cheonan, Korea.,Department of Physical Therapy, Namseoul University, Cheonan, Korea
| | - Suhkmann Kim
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan, Korea
| | - Ho-Seong Lee
- Department of Kinesiologic Medical Science, Graduate School, Dankook University, Cheonan, Korea
| | - Kyu-Bong Kim
- College of Pharmacy, Dankook University, Cheonan, Korea
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