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Guo A, Huang K, Lu Q, Tao B, Li K, Jiang D. TRIM16 facilitates SIRT-1-dependent regulation of antioxidant response to alleviate age-related sarcopenia. J Cachexia Sarcopenia Muscle 2024. [PMID: 39192479 DOI: 10.1002/jcsm.13553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 07/02/2024] [Accepted: 07/08/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND Age-related sarcopenia, characterized by reduced skeletal muscle mass and function, significantly affects the health of the elderly individuals. Oxidative stress plays a crucial role in the development of sarcopenia. Tripartite motif containing 16 (TRIM16) is implicated in orchestrating antioxidant responses to mitigate oxidative stress, yet its regulatory role in skeletal muscle remains unclear. This study aims to elucidate the impact of TRIM16 on enhancing antioxidant response through SIRT-1, consequently mitigating age-related oxidative stress, and ameliorating muscle atrophy. METHODS Aged mouse models were established utilizing male mice at 18 months with D-galactose (D-gal, 200 mg/kg) intervention and at 24 months with natural aging, while 3-month-old young mice served as controls. Muscle cell senescence was induced in C2C12 myoblasts using 30 g/L D-gal. TRIM16 was overexpressed in the skeletal muscle of aged mice and silenced/overexpressed in C2C12 myoblasts. The effects of TRIM16 on skeletal muscle mass, grip strength, morphological changes, myotube formation, myogenic differentiation, and muscle atrophy indicators were evaluated. Reactive oxygen species (ROS) levels and oxidative stress-related parameters were measured. The SIRT-1 inhibitor EX-527 was employed to elucidate the protective role of TRIM16 mediated through SIRT-1. RESULTS Aged mice displayed significant reductions in lean mass (-11.58%; -14.47% vs. young, P < 0.05), hindlimb lean mass (-17.38%; -15.95% vs. young, P < 0.05), and grip strength (-22.29%; -31.45% vs. young, P < 0.01). Skeletal muscle fibre cross-sectional area (CSA) decreased (-29.30%; -24.12% vs. young, P < 0.05). TRIM16 expression significantly decreased in aging skeletal muscle (-56.82%; -66.27% vs. young, P < 0.001) and senescent muscle cells (-46.53% vs. control, P < 0.001). ROS levels increased (+69.83% vs. control, P < 0.001), and myotube formation decreased in senescent muscle cells (-56.68% vs. control, P < 0.001). Expression of myogenic differentiation and antioxidant indicators decreased, while muscle atrophy markers increased in vivo and in vitro (all P < 0.05). Silencing TRIM16 in myoblasts induced oxidative stress and myotube atrophy, while TRIM16 overexpression partially mitigated aging effects on skeletal muscle. TRIM16 activation enhanced SIRT-1 expression (+75.38% vs. control, P < 0.001). SIRT-1 inhibitor EX-527 (100 μM) suppressed TRIM16's antioxidant response and mitigating muscle atrophy, offsetting the protective effect of TRIM16 on senescent muscle cells. CONCLUSIONS This study elucidates TRIM16's role in mitigating oxidative stress and ameliorating muscle atrophy through the activation of SIRT-1-dependent antioxidant effects. TRIM16 emerges as a potential therapeutic target for age-related sarcopenia.
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Affiliation(s)
- Ai Guo
- Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ke Huang
- Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Quanyi Lu
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bailong Tao
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kai Li
- Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dianming Jiang
- Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Tanaka K, Kawakami S, Mori S, Yamaguchi T, Saito E, Setoguchi Y, Matsui Y, Nishimura E, Ebihara S, Kawama T. Piceatannol Upregulates SIRT1 Expression in Skeletal Muscle Cells and in Human Whole Blood: In Vitro Assay and a Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Comparison Trial. Life (Basel) 2024; 14:589. [PMID: 38792610 PMCID: PMC11122325 DOI: 10.3390/life14050589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/19/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
Piceatannol (PIC), a polyphenol abundant in passion fruit seeds, is reported to promote fat metabolism. This study investigated whether PIC affects sirtuin 1 (SIRT1) expression and metabolic factors in C2C12 skeletal muscle cells. C2C12 myotubes were stimulated with PIC, and alterations in gene expression, protein levels, mitochondrial DNA content, and fatty acid levels were assessed using real-time PCR, Western blotting, and Nile red staining. Furthermore, we examined changes in SIRT1 expression following the consumption of a test food containing 100 mg PIC for 2 weeks among adults with varying age and body mass index ranges. Both PIC and passion fruit seed extract induced SIRT1 expression in C2C12 myotubes to a greater extent than resveratrol. PIC also increased the expression of genes associated with mitochondrial biogenesis and fatty acid utilization, increased mitochondrial DNA content, and suppressed oleic acid-induced fat accumulation. Moreover, participants who consumed PIC exhibited significantly higher SIRT1 mRNA expression in whole blood compared to those in the placebo group. These findings suggest that PIC induces SIRT1 expression both in vitro and in the human body, which may promote mitochondrial biosynthesis and fat metabolism.
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Affiliation(s)
- Kenta Tanaka
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Shinpei Kawakami
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Sadao Mori
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Takumi Yamaguchi
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Eriko Saito
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Yuko Setoguchi
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Yuko Matsui
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Eisaku Nishimura
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
| | - Shukuko Ebihara
- Chiyoda Paramedical Care Clinic, 3-3-10 Hongokucyo, Nihonbashi, Cyuo-ku, Tokyo 103-0021, Japan
| | - Toshihiro Kawama
- R&D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (K.T.); (S.K.); (S.M.); (T.Y.); (E.S.); (Y.S.); (Y.M.); (E.N.)
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Taheripak G, Sabeti N, Najar N, Razavi Z, Saharkhiz S, Alipourfard I. SIRT1 activation attenuates palmitate induced apoptosis in C 2C 12 muscle cells. Mol Biol Rep 2024; 51:354. [PMID: 38400872 DOI: 10.1007/s11033-024-09250-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/12/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND Type 2 diabetes is characterized by insulin resistance, which manifests mainly in skeletal muscles. SIRT1 has been found to play a role in the insulin signaling pathway. However, the molecular underpinnings of SIRT1's function in palmitate fatty acid-induced apoptosis still need to be better understood. METHODS In this research, skeletal muscle cells are treated with palmitate to be insulin resistant. It is approached that SIRT1 is downregulated in C2C12 muscle cells during palmitate-induced apoptosis and that activating SIRT1 mitigates this effect. RESULTS Based on these findings, palmitate-induced apoptosis suppressed mitochondrial biogenesis by lowering PGC-1 expression, while SIRT1 overexpression boosted. The SIRT1 inhibitor sirtinol, on the other hand, decreased mitochondrial biogenesis under the same conditions. This research also shows that ROS levels rise in the conditions necessary for apoptosis induction by palmitate, and ROS inhibitors can mitigate this effect. This work demonstrated that lowering ROS levels by boosting SIRT1 expression inhibited apoptotic induction in skeletal muscle cells. CONCLUSION This study's findings suggested that SIRT1 can improve insulin resistance in type 2 diabetes by slowing the rate of lipo-apoptosis and boosting mitochondrial biogenesis, among other benefits.
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Affiliation(s)
- Gholamreza Taheripak
- Department of Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Niusha Sabeti
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Naba Najar
- Department of Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Zahrasadat Razavi
- Department of Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saber Saharkhiz
- Division of Neuroscience, Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Iraj Alipourfard
- Institute of Physical Chemistry, Polish Academy of Sciences, Marcina Kasprzaka 44/52, Warsaw, 01-224, Poland.
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Karolczak K, Watala C. Estradiol as the Trigger of Sirtuin-1-Dependent Cell Signaling with a Potential Utility in Anti-Aging Therapies. Int J Mol Sci 2023; 24:13753. [PMID: 37762053 PMCID: PMC10530977 DOI: 10.3390/ijms241813753] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/01/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
Aging entails the inevitable loss of the structural and functional integrity of cells and tissues during the lifetime. It is a highly hormone-dependent process; although, the exact mechanism of hormone involvement, including sex hormones, is unclear. The marked suppression of estradiol synthesis during menopause suggests that the hormone may be crucial in maintaining cell lifespan and viability in women. Recent studies also indicate that the same may be true for men. Similar anti-aging features are attributed to sirtuin 1 (SIRT1), which may possibly be linked at the molecular level with estradiol. This finding may be valuable for understanding the aging process, its regulation, and possible prevention against unhealthy aging. The following article summarizes the initial studies published in this field with a focus on age-associated diseases, like cancer, cardiovascular disease and atherogenic metabolic shift, osteoarthritis, osteoporosis, and muscle damage, as well as neurodegenerative and neuropsychiatric diseases.
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Affiliation(s)
- Kamil Karolczak
- Department of Haemostatic Disorders, Medical University of Lodz, ul. Mazowiecka 6/8, 92-215 Lodz, Poland;
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Tao W, Ouyang Z, Liao Z, Li L, Zhang Y, Gao J, Ma L, Yu S. Ursolic Acid Alleviates Cancer Cachexia and Prevents Muscle Wasting via Activating SIRT1. Cancers (Basel) 2023; 15:cancers15082378. [PMID: 37190306 DOI: 10.3390/cancers15082378] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/10/2023] [Accepted: 04/18/2023] [Indexed: 05/17/2023] Open
Abstract
Skeletal muscle wasting is the most remarkable phenotypic feature of cancer cachexia that increases the risk of morbidity and mortality. However, there are currently no effective drugs against cancer cachexia. Ursolic acid (UA) is a lipophilic pentacyclic triterpene that has been reported to alleviate muscle atrophy and reduce muscle decomposition in some disease models. This study aimed to explore the role and mechanisms of UA treatment in cancer cachexia. We found that UA attenuated Lewis lung carcinoma (LLC)-conditioned medium-induced C2C12 myotube atrophy and muscle wasting of LLC tumor-bearing mice. Moreover, UA dose-dependently activated SIRT1 and downregulated MuRF1 and Atrogin-1. Molecular docking results revealed a good binding effect on UA and SIRT1 protein. UA rescued vital features wasting without impacting tumor growth, suppressed the elevated spleen weight, and downregulated serum concentrations of inflammatory cytokines in vivo. The above phenomena can be attenuated by Ex-527, an inhibitor of SIRT1. Furthermore, UA remained protective against cancer cachexia in the advanced stage of tumor growth. The results revealed that UA exerts an anti-cachexia effect via activating SIRT1, thereby downregulating the phosphorylation levels of NF-κB and STAT3. UA might be a potential drug against cancer cachexia.
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Affiliation(s)
- Weili Tao
- Department of Oncology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ze Ouyang
- Department of Oncology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhiqi Liao
- Reproductive Medicine Center, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lu Li
- Department of Oncology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yujie Zhang
- Department of Oncology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiali Gao
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Li Ma
- Department of Oncology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shiying Yu
- Department of Oncology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
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Sherazi SAM, Abbasi A, Jamil A, Uzair M, Ikram A, Qamar S, Olamide AA, Arshad M, Fried PJ, Ljubisavljevic M, Wang R, Bashir S. Molecular hallmarks of long non-coding RNAs in aging and its significant effect on aging-associated diseases. Neural Regen Res 2022; 18:959-968. [PMID: 36254975 PMCID: PMC9827784 DOI: 10.4103/1673-5374.355751] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Aging is linked to the deterioration of many physical and cognitive abilities and is the leading risk factor for Alzheimer's disease. The growing aging population is a significant healthcare problem globally that researchers must investigate to better understand the underlying aging processes. Advances in microarrays and sequencing techniques have resulted in deeper analyses of diverse essential genomes (e.g., mouse, human, and rat) and their corresponding cell types, their organ-specific transcriptomes, and the tissue involved in aging. Traditional gene controllers such as DNA- and RNA-binding proteins significantly influence such programs, causing the need to sort out long non-coding RNAs, a new class of powerful gene regulatory elements. However, their functional significance in the aging process and senescence has yet to be investigated and identified. Several recent researchers have associated the initiation and development of senescence and aging in mammals with several well-reported and novel long non-coding RNAs. In this review article, we identified and analyzed the evolving functions of long non-coding RNAs in cellular processes, including cellular senescence, aging, and age-related pathogenesis, which are the major hallmarks of long non-coding RNAs in aging.
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Affiliation(s)
- Syed Aoun Mehmood Sherazi
- Department of Biological Sciences, Faculty of Basic & Applied Sciences, International Islamic University, Islamabad, Pakistan
| | - Asim Abbasi
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Abdullah Jamil
- Department of Pharmacology, Government College University, Faisalabad, Pakistan
| | - Mohammad Uzair
- Department of Biological Sciences, Faculty of Basic & Applied Sciences, International Islamic University, Islamabad, Pakistan
| | - Ayesha Ikram
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Shanzay Qamar
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Arshad
- Department of Biological Sciences, Faculty of Basic & Applied Sciences, International Islamic University, Islamabad, Pakistan
| | - Peter J. Fried
- Department of Neurology, Berenson-Allen Center for Noninvasive Brain Stimulation and Division of Cognitive Neurology, Beth Israel Deaconess Medical Center (KS 158), Harvard Medical School, Boston, MA, USA
| | - Milos Ljubisavljevic
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Ran Wang
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China,Mental Health Institute of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Shahid Bashir
- Neuroscience Center, King Fahad Specialist Hospital, Dammam, Saudi Arabia,Correspondence to: Shahid Bashir, .
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Bioactive Components in Whole Grains for the Regulation of Skeletal Muscle Function. Foods 2022; 11:foods11182752. [PMID: 36140879 PMCID: PMC9498156 DOI: 10.3390/foods11182752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 12/03/2022] Open
Abstract
Skeletal muscle plays a primary role in metabolic health and physical performance. Conversely, skeletal muscle dysfunctions such as muscular dystrophy, atrophy and aging-related sarcopenia could lead to frailty, decreased independence and increased risk of hospitalization. Dietary intervention has become an effective approach to improving muscle health and function. Evidence shows that whole grains possess multiple health benefits compared with refined grains. Importantly, there is growing evidence demonstrating that bioactive substances derived from whole grains such as polyphenols, γ-oryzanol, β-sitosterol, betaine, octacosanol, alkylresorcinols and β-glucan could contribute to enhancing myogenesis, muscle mass and metabolic function. In this review, we discuss the potential role of whole-grain-derived bioactive components in the regulation of muscle function, emphasizing the underlying mechanisms by which these compounds regulate muscle biology. This work will contribute toward increasing awareness of nutraceutical supplementation of whole grain functional ingredients for the prevention and treatment of muscle dysfunctions.
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López-Bellón S, Rodríguez-López S, González-Reyes JA, Burón MI, de Cabo R, Villalba JM. CYB5R3 overexpression preserves skeletal muscle mitochondria and autophagic signaling in aged transgenic mice. GeroScience 2022; 44:2223-2241. [PMID: 35527283 PMCID: PMC9616997 DOI: 10.1007/s11357-022-00574-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 04/15/2022] [Indexed: 01/18/2023] Open
Abstract
Cytochrome b5 reductase 3 (CYB5R3) overexpression activates respiratory metabolism and exerts prolongevity effects in transgenic mice, mimicking some of the salutary effects of calorie restriction. The aim of our study was to understand how CYB5R3 overexpression targets key pathways that modulate the rate of aging in skeletal muscle, a postmitotic tissue with a greater contribution to resting energy expenditure. Mitochondrial function, autophagy and mitophagy markers were evaluated in mouse hind limb skeletal muscles from young-adult (7 months old) and old (24 months old) males of wild-type and CYB5R3-overexpressing genotypes. Ultrastructure of subsarcolemmal and intermyofibrillar mitochondria was studied by electron microscopy in red gastrocnemius. CYB5R3, which was efficiently overexpressed and targeted to skeletal muscle mitochondria regardless of age, increased the abundance of complexes I, II, and IV in old mice and prevented the age-related decrease of complexes I, III, IV, and V and the mitofusin MFN-2. ATP was significantly decreased by aging, which was prevented by CYB5R3 overexpression. Coenzyme Q and the mitochondrial biogenesis markers TFAM and NRF-1 were also significantly diminished by aging, but CYB5R3 overexpression did not protect against these declines. Both aging and CYB5R3 overexpression upregulated SIRT3 and the mitochondrial fission markers FIS1 and DRP-1, although with different outcomes on mitochondrial ultrastructure: old wild-type mice exhibited mitochondrial fragmentation whereas CYB5R3 overexpression increased mitochondrial size in old transgenic mice concomitant with an improvement of autophagic recycling. Interventions aimed at stimulating CYB5R3 could represent a valuable strategy to counteract the deleterious effects of aging in skeletal muscle.
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Affiliation(s)
- Sara López-Bellón
- Departamento de Biología Celular, Fisiología E Inmunología, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, 3ª planta, Campus de Excelencia Internacional Agroalimentario, ceiA3, 14014, Cordoba, Spain
| | - Sandra Rodríguez-López
- Departamento de Biología Celular, Fisiología E Inmunología, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, 3ª planta, Campus de Excelencia Internacional Agroalimentario, ceiA3, 14014, Cordoba, Spain
| | - José A González-Reyes
- Departamento de Biología Celular, Fisiología E Inmunología, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, 3ª planta, Campus de Excelencia Internacional Agroalimentario, ceiA3, 14014, Cordoba, Spain
| | - M Isabel Burón
- Departamento de Biología Celular, Fisiología E Inmunología, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, 3ª planta, Campus de Excelencia Internacional Agroalimentario, ceiA3, 14014, Cordoba, Spain
| | - Rafael de Cabo
- Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, Baltimore, MD, USA
| | - José M Villalba
- Departamento de Biología Celular, Fisiología E Inmunología, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, 3ª planta, Campus de Excelencia Internacional Agroalimentario, ceiA3, 14014, Cordoba, Spain.
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Huang S, Xiang C, Song Y. Identification of the shared gene signatures and pathways between sarcopenia and type 2 diabetes mellitus. PLoS One 2022; 17:e0265221. [PMID: 35271662 PMCID: PMC8912249 DOI: 10.1371/journal.pone.0265221] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/25/2022] [Indexed: 12/14/2022] Open
Abstract
Background Sarcopenia is characterized by the age-associated loss of skeletal muscle mass and strength that develops progressively and plays an important role in the disability of the elderly. It has received growing attention over the last decade and has been implicated as both a cause and consequence of type 2 diabetes mellitus (T2DM). The existence of T2DM could increase the risk of developing sarcopenia through multiple mechanisms including advanced glycation end-product accumulation. Meanwhile, sarcopenia would alter glucose disposal and may contribute to the development and progression of T2DM due to reduced muscle mass. Methods We implemented transcriptomic analysis of skeletal muscle biopsy specimens in sarcopenia patients and proliferating myoblasts or differentiated myotubes from individuals with T2DM. Related microarray data were selected from Gene Expression Omnibus (GEO) to screen the genes, which were differentially expressed for sarcopenia and T2DM. Multiple combinatorial statistical methods and bioinformatics tools were used to analyze the common DEGs. Meanwhile, functional enrichment analysis was also carried out. Furthermore, we constructed the protein-protein interaction (PPI), as well as transcription factor (TF)-gene interactions network and TF-miRNA coregulatory network. Finally, based on the common DEGs, drug compounds were speculated using the Drug Signatures database (DSigDB). Results A total of 1765 and 2155 DEGs of sarcopenia and T2DM were screened, respectively. 15 common genes (LXN, CIB2, PEA15, KANK2, FGD1, NMRK1, PLCB1, SEMA4G, ADARB1, UPF3A, CSTB, COL3A1, CD99, ETV3, FJX1) correlated with sarcopenia and T2DM simultaneously were then identified, and 3 genes (UPF3A, CSTB and PEA15) of them were regarded as hub genes. Functional enrichment analysis revealed several shared pathways between two diseases. In addition, according to the TF-gene interactions network and TF-miRNA coregulatory network, part of TF and miRNA may be identified as key regulator in sarcopenia and T2DM at the same time (e.g., CREM and miR-155). Notably, drug compounds for T2DM and sarcopenia were also suggested, such as coenzyme Q10. Conclusion This study revealed that sarcopenia and T2DM may share similar pathogenesis and provided new biological targets and ideas for early diagnosis and effective treatment of sarcopenia and T2DM.
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Affiliation(s)
- Shiyuan Huang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chunhua Xiang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Song
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- * E-mail:
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Somuncu S, Somuncu ÖS. A Comprehensive Review: Molecular and Genetic Background of Indirect Inguinal Hernias. Visc Med 2021; 37:349-357. [PMID: 34722718 DOI: 10.1159/000515275] [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: 05/08/2020] [Accepted: 02/15/2021] [Indexed: 11/19/2022] Open
Abstract
Background The occurrence of indirect inguinal hernias (IIH) is 5 times more prevalent than that of direct inguinal hernias (IH) and it is 7 times more common in males, owing to the attendance of the processus vaginalis (PV) throughout testicular descent. Summary In children, the immense mainstream of IH is indirect. The progress of IIH development in children is instigated with a patent PV, which is mostly treated by simple herniorrhaphy. Syndromes of the collagen, microfibril, elastin, and glycosaminoglycan constituents of the extracellular matrix may attend to the development of IH. Our recent research showed that the lack of epithelial-mesenchymal transition (EMT) in children contributes to the development of IIH, while the scenario is defined as the opposite in adults. However, there is still a lack of knowledge on all of the genetic and molecular causes of the disease. Key Messages Here we aimed to review the published genetic background of IH, the deficiencies of connective tissue causing the disease, recently defined molecular pathways involved including EMT, and possible recurrence reasons. This comprehensive study can deliver an analytic outline aiding to define patients with IH combined with fundamental genetic diseases.
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Affiliation(s)
- Salih Somuncu
- Department of Pediatric Surgery, Bezmialem Vakıf University Faculty of Medicine, İstanbul, Turkey
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Srivastava S, Rathor R, Singh SN, Suryakumar G. Emerging role of MyomiRs as biomarkers and therapeutic targets in skeletal muscle diseases. Am J Physiol Cell Physiol 2021; 321:C859-C875. [PMID: 34586896 DOI: 10.1152/ajpcell.00057.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Several chronic diseases lead to skeletal muscle loss and a decline in physical performance. MicroRNAs (miRNAs) are small, noncoding RNAs, which have exhibited their role in the development and diseased state of the skeletal muscle. miRNA regulates gene expression by binding to the 3' untranslated region of its target mRNA. Due to the robust stability in biological fluids, miRNAs are ideal candidate as biomarker. These miRNAs provide a novel avenue in strengthening our awareness and knowledge about the factors governing skeletal muscle functions such as development, growth, metabolism, differentiation, and cell proliferation. It also helps in understanding the therapeutic strategies in improving or conserving skeletal muscle health. This review outlines the evidence regarding the present knowledge on the role miRNA as a potential biomarker in skeletal muscle diseases and their exploration might be a unique and potential therapeutic strategy for various skeletal muscle disorders.
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Affiliation(s)
| | - Richa Rathor
- Defence Institute of Physiology & Allied Sciences (DIPAS), Delhi, India
| | - Som Nath Singh
- Defence Institute of Physiology & Allied Sciences (DIPAS), Delhi, India
| | - Geetha Suryakumar
- Defence Institute of Physiology & Allied Sciences (DIPAS), Delhi, India
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12
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Zhou H, Su H, Chen W. Neddylation Regulates Class IIa and III Histone Deacetylases to Mediate Myoblast Differentiation. Int J Mol Sci 2021; 22:ijms22179509. [PMID: 34502418 PMCID: PMC8431717 DOI: 10.3390/ijms22179509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/26/2021] [Accepted: 08/28/2021] [Indexed: 11/16/2022] Open
Abstract
As the largest tissue in the body, skeletal muscle has multiple functions in movement and energy metabolism. Skeletal myogenesis is controlled by a transcriptional cascade including a set of muscle regulatory factors (MRFs) that includes Myogenic Differentiation 1 (MYOD1), Myocyte Enhancer Factor 2 (MEF2), and Myogenin (MYOG), which direct the fusion of myogenic myoblasts into multinucleated myotubes. Neddylation is a posttranslational modification that covalently conjugates ubiquitin-like NEDD8 (neural precursor cell expressed, developmentally downregulated 8) to protein targets. Inhibition of neddylation impairs muscle differentiation; however, the underlying molecular mechanisms remain less explored. Here, we report that neddylation is temporally regulated during myoblast differentiation. Inhibition of neddylation through pharmacological blockade using MLN4924 (Pevonedistat) or genetic deletion of NEDD8 Activating Enzyme E1 Subunit 1 (NAE1), a subunit of the E1 neddylation-activating enzyme, blocks terminal myoblast differentiation partially through repressing MYOG expression. Mechanistically, we found that neddylation deficiency enhances the mRNA and protein expressions of class IIa histone deacetylases 4 and 5 (HDAC4 and 5) and prevents the downregulation and nuclear export of class III HDAC (NAD-Dependent Protein Deacetylase Sirtuin-1, SIRT1), all of which have been shown to repress MYOD1-mediated MYOG transcriptional activation. Together, our findings for the first time identify the crucial role of neddylation in mediating class IIa and III HDAC co-repressors to control myogenic program and provide new insights into the mechanisms of muscle disease and regeneration.
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Affiliation(s)
- Hongyi Zhou
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA;
- Correspondence: ; Tel.: +1-706-721-8779
| | - Huabo Su
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA;
| | - Weiqin Chen
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA;
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13
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Ahn J, Kim MJ, Yoo A, Ahn J, Ha TY, Jung CH, Seo HD, Jang YJ. Identifying Codium fragile extract components and their effects on muscle weight and exercise endurance. Food Chem 2021; 353:129463. [PMID: 33743428 DOI: 10.1016/j.foodchem.2021.129463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 02/04/2021] [Accepted: 02/22/2021] [Indexed: 01/29/2023]
Abstract
Codium fragile (CF) is a type of green algae consumed as kimchi in Asia. UPLC-QTOF-MS/MS analysis showed that CF contain lysophosphatidyl choline, canthaxanthin, retinoic acid, α-tocopherol, and unsaturated fatty acids, which reportedly improve skeletal muscle health. However, the effect of CF on skeletal muscle mass and function remains to be elucidated. In mice fed with CF extracts, exercise endurance and muscle weight increased. CF extracts enhanced protein synthesis and myogenic differentiation through the mTORC1 pathway. CF extracts also promoted oxidative muscle fiber formation and mitochondrial biogenesis through the PGC-1α-related signaling pathway. Upregulation of PGC-1α by CF extracts was abolished by EX527 SIRT1 inhibitor treatment. Changed signaling molecules in the CF extracts were partially regulated by canthaxanthin, a new compound in CF extracts, suggesting that canthaxanthin contribute synergistically to the effect of CF extracts. Therefore, CF is a potential food source for sport nutrition or prevention of sarcopenia.
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Affiliation(s)
- Jisong Ahn
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; Department of Food Science and Technology, Chonbuk National University, Jeonju-si 54896, Republic of Korea
| | - Min Jung Kim
- Healthcare Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Ahyoung Yoo
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; Department of Food and Nutrition, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jiyun Ahn
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; Division of Food Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Tae Youl Ha
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; Division of Food Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Chang Hwa Jung
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; Division of Food Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Hyo Deok Seo
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Young Jin Jang
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; Major of Food Science & Technology, Seoul Women's University, Seoul 01797, Republic of Korea.
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14
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Penedo-Vázquez A, Duran X, Mateu J, López-Postigo A, Barreiro E. Curcumin and Resveratrol Improve Muscle Function and Structure through Attenuation of Proteolytic Markers in Experimental Cancer-Induced Cachexia. Molecules 2021; 26:4904. [PMID: 34443492 PMCID: PMC8402048 DOI: 10.3390/molecules26164904] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 12/12/2022] Open
Abstract
Muscle wasting and cachexia are prominent comorbidities in cancer. Treatment with polyphenolic compounds may partly revert muscle wasting. We hypothesized that treatment with curcumin or resveratrol in cancer cachectic mice may improve muscle phenotype and total body weight through attenuation of several proteolytic and signaling mechanisms in limb muscles. In gastrocnemius and soleus muscles of cancer cachectic mice (LP07 adenocarcinoma cells, N = 10/group): (1) LC-induced cachexia, (2) LC-cachexia+curcumin, and (3) LC-cachexia + resveratrol, muscle structure and damage (including blood troponin I), sirtuin-1, proteolytic markers, and signaling pathways (NF-κB and FoxO3) were explored (immunohistochemistry and immunoblotting). Compared to nontreated cachectic mice, in LC-cachexia + curcumin and LC-cachexia + resveratrol groups, body and muscle weights (gastrocnemius), limb muscle strength, muscle damage, and myofiber cross-sectional area improved, and in both muscles, sirtuin-1 increased, while proteolysis (troponin I), proteolytic markers, and signaling pathways were attenuated. Curcumin and resveratrol elicited beneficial effects on fast- and slow-twitch limb muscle phenotypes in cachectic mice through sirtuin-1 activation, attenuation of atrophy signaling pathways, and proteolysis in cancer cachectic mice. These findings have future therapeutic implications as these natural compounds, separately or in combination, may be used in clinical settings of muscle mass loss and dysfunction including cancer cachexia.
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Affiliation(s)
- Antonio Penedo-Vázquez
- Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Parc de Salut Mar, Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra (UPF), Barcelona Biomedical Research Park (PRBB), 08003 Barcelona, Spain; (A.P.-V.); (A.L.-P.)
| | - Xavier Duran
- Scientific and Technical Department, Hospital del Mar-IMIM, 08003 Barcelona, Spain;
| | - Javier Mateu
- Department of Pharmacy, Hospital del Mar, Parc de Salut Mar, 08003 Barcelona, Spain;
| | - Adrián López-Postigo
- Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Parc de Salut Mar, Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra (UPF), Barcelona Biomedical Research Park (PRBB), 08003 Barcelona, Spain; (A.P.-V.); (A.L.-P.)
| | - Esther Barreiro
- Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Parc de Salut Mar, Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra (UPF), Barcelona Biomedical Research Park (PRBB), 08003 Barcelona, Spain; (A.P.-V.); (A.L.-P.)
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 08003 Barcelona, Spain
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15
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Skeletal Muscle Gene Expression Profile in Response to Caloric Restriction and Aging: A Role for SirT1. Genes (Basel) 2021; 12:genes12050691. [PMID: 34063079 PMCID: PMC8147962 DOI: 10.3390/genes12050691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/25/2021] [Accepted: 04/29/2021] [Indexed: 11/24/2022] Open
Abstract
SirT1 plays a crucial role in the regulation of some of the caloric restriction (CR) responsive biological pathways. Aging suppresses SirT1 gene expression in skeletal muscle, suggesting that aging may affect the role of CR in muscle. To determine the role of SirT1 in the regulation of CR regulated pathways in skeletal muscle, we performed high-throughput RNA sequencing using total RNA isolated from the skeletal muscles of young and aged wild-type (WT), SirT1 knockout (SirT1-KO), and SirT1 overexpression (SirT1-OE) mice fed to 20 wk ad libitum (AL) or 40% CR diet. Our data show that aging repressed the global gene expression profile, which was restored by CR via upregulating transcriptional and translational process-related pathways. CR inhibits pathways linked to the extracellular matrix and cytoskeletal proteins regardless of aging. Mitochondrial function and muscle contraction-related pathways are upregulated in aged SirT1 KO mice following CR. SirT1 OE did not affect whole-body energy expenditure or augment skeletal muscle insulin sensitivity associated pathways, regardless of aging or diet. Overall, our RNA-seq data showed that SirT1 and CR have different functions and activation of SirT1 by its activator or exercise may enhance SirT1 activity that, along with CR, likely have a better functional role in aging muscle.
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16
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Kang JH, Park JE, Dagoon J, Masson SWC, Merry TL, Bremner SN, Dent JR, Schenk S. Sirtuin 1 is not required for contraction-stimulated glucose uptake in mouse skeletal muscle. J Appl Physiol (1985) 2021; 130:1893-1902. [PMID: 33886385 DOI: 10.1152/japplphysiol.00065.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
While it has long been known that contraction robustly stimulates skeletal muscle glucose uptake, the molecular steps regulating this increase remain incompletely defined. The mammalian ortholog of Sir2, sirtuin 1 (SIRT1), is an NAD+-dependent protein deacetylase that is thought to link perturbations in energy flux associated with exercise to subsequent cellular adaptations. Nevertheless, its role in contraction-stimulated glucose uptake has not been described. The objective of this study was to determine the importance of SIRT1 to contraction-stimulated glucose uptake in mouse skeletal muscle. Using a radioactive 2-deoxyglucose uptake (2DOGU) approach, we measured ex vivo glucose uptake in unstimulated (rested) and electrically stimulated (100 Hz contraction every 15 s for 10 min; contracted) extensor digitorum longus (EDL) and soleus from ∼15-wk-old male and female mice with muscle-specific knockout of SIRT1 deacetylase activity and their wild-type littermates. Skeletal muscle force decreased over the contraction protocol, although there were no differences in the rate of fatigue between genotypes. In EDL and soleus, loss of SIRT1 deacetylase activity did not affect contraction-induced increase in glucose uptake in either sex. Interestingly, the absolute rate of contraction-stimulated 2DOGU was ∼1.4-fold higher in female compared with male mice, regardless of muscle type. Taken together, our findings demonstrate that SIRT1 is not required for contraction-stimulated glucose uptake in mouse skeletal muscle. Moreover, to our knowledge, this is the first demonstration of sex-based differences in contraction-stimulated glucose uptake in mouse skeletal muscle.NEW & NOTEWORTHY Here, we demonstrate that glucose uptake in response to ex vivo contractions is not affected by the loss of sirtuin 1 (SIRT1) deacetylase function in muscle, regardless of sex or muscle type. Interestingly, however, similar to studies on insulin-stimulated glucose uptake, we demonstrate that contraction-stimulated glucose uptake is robustly higher in female compared with the male skeletal muscle. To our knowledge, this is the first demonstration of sex-based differences in contraction-stimulated glucose uptake in skeletal muscle.
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Affiliation(s)
- Ji H Kang
- Department of Orthopaedic Surgery, University of California, San Diego, La Jolla, California
| | - Ji E Park
- Department of Orthopaedic Surgery, University of California, San Diego, La Jolla, California
| | - Jason Dagoon
- Department of Orthopaedic Surgery, University of California, San Diego, La Jolla, California
| | - Stewart W C Masson
- Discipline of Nutrition, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Troy L Merry
- Discipline of Nutrition, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Shannon N Bremner
- Department of Orthopaedic Surgery, University of California, San Diego, La Jolla, California
| | - Jessica R Dent
- Department of Orthopaedic Surgery, University of California, San Diego, La Jolla, California.,Department of Surgery, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Simon Schenk
- Department of Orthopaedic Surgery, University of California, San Diego, La Jolla, California.,Biomedical Sciences Graduate Program, University of California, San Diego, La Jolla, California
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17
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Zhiyin L, Jinliang C, Qiunan C, Yunfei Y, Qian X. Fucoxanthin rescues dexamethasone induced C2C12 myotubes atrophy. Biomed Pharmacother 2021; 139:111590. [PMID: 33865017 DOI: 10.1016/j.biopha.2021.111590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 02/06/2023] Open
Abstract
Muscle atrophy and weakness are the adverse effects of long-term or high dose usage of glucocorticoids. In the present study, we explored the effects of fucoxanthin (10 μM) on dexamethasone (10 μM)-induced atrophy in C2C12 myotubes and investigated its underlying mechanisms. The diameter of myotubes was observed under a light microscope, and the expression of myosin heavy chain (MyHC), proteolysis-related, autophagy-related, apoptosis-related, and mitochondria-related proteins was analyzed by western blots or immunoprecipitation. Fucoxanthin alleviates dexamethasone-induced muscle atrophy in C2C12 myotubes, indicated by increased myotubes diameter and expression of MyHC, decreased expression of muscle atrophy F-box (Atrogin-1) and muscle ring finger 1 (MuRF1). Through activating SIRT1, fucoxanthin inhibits forkhead box O (FoxO) transcriptional activity to reduce protein degradation, induces autophagy to enhance degraded protein clearance, promotes mitochondrial function and diminishes apoptosis. In conclusion, we identified fucoxanthin ameliorates dexamethasone induced C2C12 myotubes atrophy through SIRT1 activation.
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Affiliation(s)
- Liao Zhiyin
- Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, China.
| | - Chen Jinliang
- Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, China.
| | - Chen Qiunan
- Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, China.
| | - Yang Yunfei
- Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, China.
| | - Xiao Qian
- Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, China.
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18
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Guo A, Li K, Tian HC, Fan Z, Chen QN, Yang YF, Yu J, Wu YX, Xiao Q. FGF19 protects skeletal muscle against obesity-induced muscle atrophy, metabolic derangement and abnormal irisin levels via the AMPK/SIRT-1/PGC-α pathway. J Cell Mol Med 2021; 25:3585-3600. [PMID: 33751819 PMCID: PMC8034456 DOI: 10.1111/jcmm.16448] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 12/15/2022] Open
Abstract
Obesity is associated with biological dysfunction in skeletal muscle. As a condition of obesity accompanied by muscle mass loss and physical dysfunction, sarcopenic obesity (SO) has become a novel public health problem. Human fibroblast growth factor 19 (FGF19) plays a therapeutic role in metabolic diseases. However, the protective effects of FGF19 on skeletal muscle in obesity and SO are still not completely understood. Our results showed that FGF19 administration improved muscle loss and grip strength in young and aged mice fed a high‐fat diet (HFD). Increases in muscle atrophy markers (FOXO‐3, Atrogin‐1, MuRF‐1) were abrogated by FGF19 in palmitic acid (PA)‐treated C2C12 myotubes and in the skeletal muscle of HFD‐fed mice. FGF19 not only reduced HFD‐induced body weight gain, excessive lipid accumulation and hyperlipidaemia but also promoted energy expenditure (PGC‐1α, UCP‐1, PPAR‐γ) in brown adipose tissue (BAT). FGF19 treatment restored PA‐ and HFD‐induced hyperglycaemia, impaired glucose tolerance and insulin resistance (IRS‐1, GLUT‐4) and mitigated the PA‐ and HFD‐induced decrease in FNDC‐5/irisin expression. However, these beneficial effects of FGF19 on skeletal muscle were abolished by inhibiting AMPK, SIRT‐1 and PGC‐1α expression. Taken together, this study suggests that FGF19 protects skeletal muscle against obesity‐induced muscle atrophy, metabolic derangement and abnormal irisin secretion partially through the AMPK/SIRT‐1/PGC‐α signalling pathway, which might be a potential therapeutic target for obesity and SO.
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Affiliation(s)
- Ai Guo
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kai Li
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hong-Chuan Tian
- Department of Orthopedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhen Fan
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qiu-Nan Chen
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yun-Fei Yang
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Yu
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yong-Xin Wu
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Xiao
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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19
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Dasgupta A, Shukla SK, Vernucci E, King RJ, Abrego J, Mulder SE, Mullen NJ, Graves G, Buettner K, Thakur R, Murthy D, Attri KS, Wang D, Chaika NV, Pacheco CG, Rai I, Engle DD, Grandgenett PM, Punsoni M, Reames BN, Teoh-Fitzgerald M, Oberley-Deegan R, Yu F, Klute KA, Hollingsworth MA, Zimmerman MC, Mehla K, Sadoshima J, Tuveson DA, Singh PK. SIRT1-NOX4 signaling axis regulates cancer cachexia. J Exp Med 2021; 217:151806. [PMID: 32441762 PMCID: PMC7336299 DOI: 10.1084/jem.20190745] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 01/31/2020] [Accepted: 04/08/2020] [Indexed: 12/21/2022] Open
Abstract
Approximately one third of cancer patients die due to complexities related to cachexia. However, the mechanisms of cachexia and the potential therapeutic interventions remain poorly studied. We observed a significant positive correlation between SIRT1 expression and muscle fiber cross-sectional area in pancreatic cancer patients. Rescuing Sirt1 expression by exogenous expression or pharmacological agents reverted cancer cell–induced myotube wasting in culture conditions and mouse models. RNA-seq and follow-up analyses showed cancer cell–mediated SIRT1 loss induced NF-κB signaling in cachectic muscles that enhanced the expression of FOXO transcription factors and NADPH oxidase 4 (Nox4), a key regulator of reactive oxygen species production. Additionally, we observed a negative correlation between NOX4 expression and skeletal muscle fiber cross-sectional area in pancreatic cancer patients. Knocking out Nox4 in skeletal muscles or pharmacological blockade of Nox4 activity abrogated tumor-induced cachexia in mice. Thus, we conclude that targeting the Sirt1–Nox4 axis in muscles is an effective therapeutic intervention for mitigating pancreatic cancer–induced cachexia.
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Affiliation(s)
- Aneesha Dasgupta
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Surendra K Shukla
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Enza Vernucci
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Ryan J King
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Jaime Abrego
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Scott E Mulder
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Nicholas J Mullen
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Gavin Graves
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Kyla Buettner
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Ravi Thakur
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Divya Murthy
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Kuldeep S Attri
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Dezhen Wang
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Nina V Chaika
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Camila G Pacheco
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Ibha Rai
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Dannielle D Engle
- Cancer Center at Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
| | - Paul M Grandgenett
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Michael Punsoni
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE
| | - Bradley N Reames
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE
| | - Melissa Teoh-Fitzgerald
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Rebecca Oberley-Deegan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Fang Yu
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, NE
| | - Kelsey A Klute
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Michael A Hollingsworth
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Matthew C Zimmerman
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE
| | - Kamiya Mehla
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Rutgers University, Newark, NJ
| | - David A Tuveson
- Cancer Center at Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
| | - Pankaj K Singh
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE.,The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE.,Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE
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20
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García-Giménez JL, Mena-Molla S, Tarazona-Santabalbina FJ, Viña J, Gomez-Cabrera MC, Pallardó FV. Implementing Precision Medicine in Human Frailty through Epigenetic Biomarkers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1883. [PMID: 33672064 PMCID: PMC7919465 DOI: 10.3390/ijerph18041883] [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] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 12/15/2022]
Abstract
The main epigenetic features in aging are: reduced bulk levels of core histones, altered pattern of histone post-translational modifications, changes in the pattern of DNA methylation, replacement of canonical histones with histone variants, and altered expression of non-coding RNA. The identification of epigenetic mechanisms may contribute to the early detection of age-associated subclinical changes or deficits at the molecular and/or cellular level, to predict the development of frailty, or even more interestingly, to improve health trajectories in older adults. Frailty reflects a state of increased vulnerability to stressors as a result of decreased physiologic reserves, and even dysregulation of multiple physiologic systems leading to adverse health outcomes for individuals of the same chronological age. A key approach to overcome the challenges of frailty is the development of biomarkers to improve early diagnostic accuracy and to predict trajectories in older individuals. The identification of epigenetic biomarkers of frailty could provide important support for the clinical diagnosis of frailty, or more specifically, to the evaluation of its associated risks. Interventional studies aimed at delaying the onset of frailty and the functional alterations associated with it, would also undoubtedly benefit from the identification of frailty biomarkers. Specific to the article yet reasonably common within the subject discipline.
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Affiliation(s)
- José Luis García-Giménez
- U733, Centre for Biomedical Network Research on Rare Diseases (CIBERER-ISCIII), 28029 Madrid, Spain; (J.L.G.-G.); (F.V.P.)
- Mixed Unit for Rare Diseases INCLIVA-CIPF, INCLIVA Health Research Institute, 46010 Valencia, Spain
- Department of Physiology, Faculty of Medicine, University of Valencia, 46003 Valencia, Spain;
- EpiDisease S.L., Parc Cientific de la Universitat de València, 46980 Paterna, Spain
| | - Salvador Mena-Molla
- Department of Physiology, Faculty of Medicine, University of Valencia, 46003 Valencia, Spain;
- EpiDisease S.L., Parc Cientific de la Universitat de València, 46980 Paterna, Spain
| | | | - Jose Viña
- Freshage Research Group, Department of Physiology, Faculty of Medicine, Institute of Health Research-INCLIVA, University of Valencia and CIBERFES, 46010 Valencia, Spain;
| | - Mari Carmen Gomez-Cabrera
- Freshage Research Group, Department of Physiology, Faculty of Medicine, Institute of Health Research-INCLIVA, University of Valencia and CIBERFES, 46010 Valencia, Spain;
| | - Federico V. Pallardó
- U733, Centre for Biomedical Network Research on Rare Diseases (CIBERER-ISCIII), 28029 Madrid, Spain; (J.L.G.-G.); (F.V.P.)
- Mixed Unit for Rare Diseases INCLIVA-CIPF, INCLIVA Health Research Institute, 46010 Valencia, Spain
- Department of Physiology, Faculty of Medicine, University of Valencia, 46003 Valencia, Spain;
- EpiDisease S.L., Parc Cientific de la Universitat de València, 46980 Paterna, Spain
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Sebastian-delaCruz M, Gonzalez-Moro I, Olazagoitia-Garmendia A, Castellanos-Rubio A, Santin I. The Role of lncRNAs in Gene Expression Regulation through mRNA Stabilization. Noncoding RNA 2021; 7:ncrna7010003. [PMID: 33466464 PMCID: PMC7839045 DOI: 10.3390/ncrna7010003] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 12/12/2022] Open
Abstract
mRNA stability influences gene expression and translation in almost all living organisms, and the levels of mRNA molecules in the cell are determined by a balance between production and decay. Maintaining an accurate balance is crucial for the correct function of a wide variety of biological processes and to maintain an appropriate cellular homeostasis. Long non-coding RNAs (lncRNAs) have been shown to participate in the regulation of gene expression through different molecular mechanisms, including mRNA stabilization. In this review we provide an overview on the molecular mechanisms by which lncRNAs modulate mRNA stability and decay. We focus on how lncRNAs interact with RNA binding proteins and microRNAs to avoid mRNA degradation, and also on how lncRNAs modulate epitranscriptomic marks that directly impact on mRNA stability.
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Affiliation(s)
- Maialen Sebastian-delaCruz
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, 48940 Leioa, Spain; (M.S.-d.); (A.O.-G.); (A.C.-R.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
| | - Itziar Gonzalez-Moro
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
- Department of Biochemistry and Molecular Biology, University of the Basque Country, 48940 Leioa, Spain
| | - Ane Olazagoitia-Garmendia
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, 48940 Leioa, Spain; (M.S.-d.); (A.O.-G.); (A.C.-R.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
| | - Ainara Castellanos-Rubio
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, 48940 Leioa, Spain; (M.S.-d.); (A.O.-G.); (A.C.-R.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Izortze Santin
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
- Department of Biochemistry and Molecular Biology, University of the Basque Country, 48940 Leioa, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-94-601-32-09
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Wojciak G, Szymura J, Szygula Z, Gradek J, Wiecek M. The Effect of Repeated Whole-Body Cryotherapy on Sirt1 and Sirt3 Concentrations and Oxidative Status in Older and Young Men Performing Different Levels of Physical Activity. Antioxidants (Basel) 2020; 10:antiox10010037. [PMID: 33396247 PMCID: PMC7823702 DOI: 10.3390/antiox10010037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/09/2020] [Accepted: 12/28/2020] [Indexed: 12/26/2022] Open
Abstract
Background: The activity of antioxidant enzymes and sirtuins (Sirt) decreases along with age, which is counteracted by aerobic training. Sirtuins increase antioxidant defence. Whole-body cryotherapy (WBC) increases total antioxidant capacity (TAC) in young men. The aim of our study was to assess the impact of 24 WBC treatments on the blood concentration of selected sirtuins and the level of antioxidant defence as well as oxidative stress index of training and non-training men depending on age. Methods: The study involved 40 males. In each group, there were 10 non-training older and young men (60 NTR and 20 NTR), and 10 older and young long-distance runners (60 TR, 20 TR). During an 8-week period, participants underwent 24 WBC treatments (3 min −130 °C), which were performed three times a week (Monday, Wednesday, Friday). The concentrations of Sirt1, Sirt3, TAC, total oxidative status and the activity of superoxide dismutase (SOD), catalase and glutathione peroxidase (GPx) in the blood were determined before 1 WBC and after 1 WBC, 12 WBC and 24 WBC. Results: After 1 WBC, the activity of GPx and the concentration of Sirt1 and TAC in 60 TR and TAC in 60 NTR increased. After 12 WBC, the level of Sirt1 in 20 NTR and SOD in 20 TR increased. After 24 WBC, the level of Sirt1 increased in 60 TR and in 20 NTR, Sirt3 in 60 TR and SOD in 20 TR. Conclusions: Cryogenic temperatures increase blood levels of Sirt1 and Sirt3 and systemic antioxidant defence in men, but the effect is dependent on age, level of performed physical activity and the number of applied treatments.
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Affiliation(s)
- Gabriela Wojciak
- Faculty of Physical Education and Sport, University of Physical Education in Kraków, 31-571 Kraków, Poland
- Correspondence: (G.W.); (M.W.)
| | - Jadwiga Szymura
- Department of Clinical Rehabilitation, Faculty of Motor Rehabilitation, University of Physical Education in Kraków, 31-571 Kraków, Poland;
| | - Zbigniew Szygula
- Department of Sport Medicine and Human Nutrition, Faculty of Physical Education and Sport, University of Physical Education in Kraków, 31-571 Kraków, Poland;
| | - Joanna Gradek
- Department of Athletics, Faculty of Physical Education and Sport, University of Physical Education in Kraków, 31-571 Kraków, Poland;
| | - Magdalena Wiecek
- Department of Physiology and Biochemistry, Faculty of Physical Education and Sport, University of Physical Education in Kraków, 31-571 Kraków, Poland
- Correspondence: (G.W.); (M.W.)
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Competing Endogenous RNA Networks as Biomarkers in Neurodegenerative Diseases. Int J Mol Sci 2020; 21:ijms21249582. [PMID: 33339180 PMCID: PMC7765627 DOI: 10.3390/ijms21249582] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 12/14/2022] Open
Abstract
Protein aggregation is classically considered the main cause of neuronal death in neurodegenerative diseases (NDDs). However, increasing evidence suggests that alteration of RNA metabolism is a key factor in the etiopathogenesis of these complex disorders. Non-coding RNAs are the major contributor to the human transcriptome and are particularly abundant in the central nervous system, where they have been proposed to be involved in the onset and development of NDDs. Interestingly, some ncRNAs (such as lncRNAs, circRNAs and pseudogenes) share a common functionality in their ability to regulate gene expression by modulating miRNAs in a phenomenon known as the competing endogenous RNA mechanism. Moreover, ncRNAs are found in body fluids where their presence and concentration could serve as potential non-invasive biomarkers of NDDs. In this review, we summarize the ceRNA networks described in Alzheimer's disease, Parkinson's disease, multiple sclerosis, amyotrophic lateral sclerosis and spinocerebellar ataxia type 7, and discuss their potential as biomarkers of these NDDs. Although numerous studies have been carried out, further research is needed to validate these complex interactions between RNAs and the alterations in RNA editing that could provide specific ceRNET profiles for neurodegenerative disorders, paving the way to a better understanding of these diseases.
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Mañas-García L, Guitart M, Duran X, Barreiro E. Satellite Cells and Markers of Muscle Regeneration during Unloading and Reloading: Effects of Treatment with Resveratrol and Curcumin. Nutrients 2020; 12:nu12061870. [PMID: 32585875 PMCID: PMC7353305 DOI: 10.3390/nu12061870] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/04/2020] [Accepted: 06/18/2020] [Indexed: 12/11/2022] Open
Abstract
We hypothesized that treatment with pharmacological agents known to increase sirtuin-1 activity (resveratrol and curcumin) may enhance muscle regeneration. In limb muscles of mice (C57BL/6J, 10 weeks) exposed to reloading for seven days following a seven-day period of hindlimb immobilization with/without curcumin or resveratrol treatment, progenitor muscle cell numbers (FACS), satellite cell subtypes (histology), early and late muscle regeneration markers, phenotype and morphometry, sirtuin-1 activity and content, and muscle function were assessed. Treatment with either resveratrol or curcumin in immobilized muscles elicited a significant improvement in numbers of progenitor, activated, quiescent, and total counts of muscle satellite cells, compared to non-treated animals. Treatment with either resveratrol or curcumin in reloaded muscles compared to non-treated mice induced a significant improvement in the CSA of both hybrid (curcumin) and fast-twitch fibers (resveratrol), sirtuin-1 activity (curcumin), sirtuin-1 content (resveratrol), and counts of progenitor muscle cells (resveratrol). Treatment with the pharmacological agents resveratrol and curcumin enhanced the numbers of satellite cells (muscle progenitor, quiescent, activated, and total satellite cells) in the unloaded limb muscles but not in the reloaded muscles. These findings have potential clinical implications as treatment with these phenolic compounds would predominantly be indicated during disuse muscle atrophy to enhance the muscle regeneration process.
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Affiliation(s)
- Laura Mañas-García
- Pulmonology Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Parc de Salut Mar, Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra (UPF), Barcelona Biomedical Research Park (PRBB), 08003 Barcelona, Spain; (L.M.-G.); (M.G.)
| | - Maria Guitart
- Pulmonology Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Parc de Salut Mar, Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra (UPF), Barcelona Biomedical Research Park (PRBB), 08003 Barcelona, Spain; (L.M.-G.); (M.G.)
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 08003 Barcelona, Spain
| | - Xavier Duran
- Scientific and Technical Department, Hospital del Mar-IMIM, 08003 Barcelona, Spain;
| | - Esther Barreiro
- Pulmonology Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Parc de Salut Mar, Health and Experimental Sciences Department (CEXS), Universitat Pompeu Fabra (UPF), Barcelona Biomedical Research Park (PRBB), 08003 Barcelona, Spain; (L.M.-G.); (M.G.)
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 08003 Barcelona, Spain
- Correspondence: ; Tel.: +34-93-316-0385; Fax: +34-93-316-0410
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Simó-Mirabet P, Perera E, Calduch-Giner JA, Pérez-Sánchez J. Local DNA methylation helps to regulate muscle sirtuin 1 gene expression across seasons and advancing age in gilthead sea bream ( Sparus aurata). Front Zool 2020; 17:15. [PMID: 32467713 PMCID: PMC7227224 DOI: 10.1186/s12983-020-00361-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/30/2020] [Indexed: 12/15/2022] Open
Abstract
Background Sirtuins (SIRTs) are master regulators of metabolism, and their expression patterns in gilthead sea bream (GSB) reveal different tissue metabolic capabilities and changes in energy status. Since little is known about their transcriptional regulation, the aim of this work was to study for the first time in fish the effect of age and season on sirt gene expression, correlating expression patterns with local changes in DNA methylation in liver and white skeletal muscle (WSM). Methods Gene organization of the seven sirts was analyzed by BLAT searches in the IATS-CSIC genomic database (www.nutrigroup-iats.org/seabreamdb/). The presence of CpG islands (CGIs) was mapped by means of MethPrimer software. DNA methylation analyses were performed by bisulfite pyrosequencing. A PCR array was designed for the simultaneous gene expression profiling of sirts and related markers (cs, cpt1a, pgc1α, ucp1, and ucp3) in the liver and WSM of one- and three-year-old fish during winter and summer. Results The occurrence of CGIs was evidenced in the sirt1 and sirt3 promoters. This latter CGI remained hypomethylated regardless of tissue, age and season. Conversely, DNA methylation of sirt1 at certain CpG positions within the promoter varied with age and season in the WSM. Among them, changes at several SP1 binding sites were negatively correlated with the decrease in sirt1 expression in summer and in younger fish. Changes in sirt1 regulation match well with variations in feed intake and energy metabolism, as judged by the concurrent changes in the analyzed markers. This was supported by discriminant analyses, which identified sirt1 as a highly responsive element to age- and season-mediated changes in energy metabolism in WSM. Conclusions The gene organization of SIRTs is highly conserved in vertebrates. GSB sirt family members have CGI- and non-CGI promoters, and the presence of CGIs at the sirt1 promoter agrees with its ubiquitous expression. Gene expression analyses support that sirts, especially sirt1, are reliable markers of age- and season-dependent changes in energy metabolism. Correlation analyses suggest the involvement of DNA methylation in the regulation of sirt1 expression, but the low methylation levels suggest the contribution of other putative mechanisms in the transcriptional regulation of sirt1.
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Affiliation(s)
- Paula Simó-Mirabet
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595 Ribera de Cabanes s/n, Castellón, Spain
| | - Erick Perera
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595 Ribera de Cabanes s/n, Castellón, Spain
| | - Josep Alvar Calduch-Giner
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595 Ribera de Cabanes s/n, Castellón, Spain
| | - Jaume Pérez-Sánchez
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal, IATS-CSIC, 12595 Ribera de Cabanes s/n, Castellón, Spain
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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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Increased Circulating Levels of Interleukin-6 Affect the Redox Balance in Skeletal Muscle. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:3018584. [PMID: 31827671 PMCID: PMC6881749 DOI: 10.1155/2019/3018584] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/01/2019] [Accepted: 09/26/2019] [Indexed: 12/25/2022]
Abstract
The extent of oxidative stress and chronic inflammation are closely related events which coexist in a muscle environment under pathologic conditions. It has been generally accepted that the inflammatory cells, as well as myofibers, are sources of reactive species which are, in turn, able to amplify the activation of proinflammatory pathways. However, the precise mechanism underlining the physiopathologic interplay between ROS generation and inflammatory response has to be fully clarified. Thus, the identification of key molecular players in the interconnected pathogenic network between the two processes might help to design more specific therapeutic approaches for degenerative diseases. Here, we investigated whether elevated circulating levels of the proinflammatory cytokine Interleukin-6 (IL-6) are sufficient to perturb the physiologic redox balance in skeletal muscle, independently of tissue damage and inflammatory response. We observed that the overexpression of circulating IL-6 enhances the generation and accumulation of free radicals in the diaphragm muscle of adult NSE/IL-6 mice, by deregulating redox-associated molecular circuits and impinging the nuclear factor erythroid 2-related factor 2- (Nrf2-) mediated antioxidant response. Our findings are coherent with a model in which uncontrolled levels of IL-6 in the bloodstream can influence the local redox homeostasis, inducing the establishment of prooxidative conditions in skeletal muscle tissue.
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Yoshihara T, Machida S, Tsuzuki T, Kakigi R, Chang SW, Sugiura T, Naito H. Age-related changes in histone modification in rat gastrocnemius muscle. Exp Gerontol 2019; 125:110658. [PMID: 31302168 DOI: 10.1016/j.exger.2019.110658] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/26/2019] [Accepted: 07/11/2019] [Indexed: 12/28/2022]
Abstract
Changes in histone acetylation and methylation status with aging affect gene expression and phenotype in several tissues; however, age-related changes in histone modification in the skeletal muscle have not been elucidated yet. This study investigated age-related global changes in histone modification in rat gastrocnemius muscle. Male Wistar rats (n = 28) were assigned to one of four age groups (n = 7 per group) corresponding to different life stages: 3 months old (3-mo; young), 6 months old (adult), 12 months old (12-mo; middle-aged), and 24 months old (24-mo; old). The gastrocnemius muscle was removed and global histone modification (acetylation and tri-methylation) at K9 and K27 was evaluated by western blotting. Relative muscle mass decreased in the 12- and 24-mo rats accompanied with reduction in type IIb myosin heavy chain isoforms and Myh4 (MHC IIB) mRNA expression. Histone H3 acetylation decreased in an age-dependent manner, with lower levels in 12- and 24-mo groups than in the 3-mo group. K9 and K27 acetylation decreased with age. Although there was no significant change in K27 tri-methylation, K9 tri-methylation showed an age-dependent decline. Histone modification status (acetylation at K9 and K27 and tri-methylation at K9) was positively associated with relative gastrocnemius muscle weight, the percentage of type IIb myosin heavy chain isoform, myosin heavy chain type IIb protein expression, and the level of Myh4 mRNA. Thus, global histone H3 methylation and acetylation decrease with age, and the latter might be associated with age-related muscle atrophy of rat gastrocnemius muscle.
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Affiliation(s)
- Toshinori Yoshihara
- Graduate School of Health and Sports Science, Juntendo University, 1-1 Hirakagakuendai, Inzai, Chiba 270-1695, Japan.
| | - Shuichi Machida
- Graduate School of Health and Sports Science, Juntendo University, 1-1 Hirakagakuendai, Inzai, Chiba 270-1695, Japan.
| | - Takamasa Tsuzuki
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi 468-8503, Japan.
| | - Ryo Kakigi
- Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
| | - Shuo-Wen Chang
- Graduate School of Health and Sports Science, Juntendo University, 1-1 Hirakagakuendai, Inzai, Chiba 270-1695, Japan.
| | - Takao Sugiura
- Faculty of Education, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8513, Japan.
| | - Hisashi Naito
- Graduate School of Health and Sports Science, Juntendo University, 1-1 Hirakagakuendai, Inzai, Chiba 270-1695, Japan.
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Wessner B, Ploder M, Tschan H, Ferunaj P, Erindi A, Strasser EM, Bachl N. Effects of acute resistance exercise on proteolytic and myogenic markers in skeletal muscles of former weightlifters and age-matched sedentary controls. J Sports Med Phys Fitness 2019; 59:1915-1924. [PMID: 31219250 DOI: 10.23736/s0022-4707.19.09740-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Former athletes who continue a regular, performance-oriented training throughout life provide a unique model for studying successful aging. With this in mind, the current study aimed to compare the effects of an acute resistance exercise on proteolytic and myogenic markers in older weightlifters and untrained participants. METHODS Sixteen older men (8 former weightlifters, 8 age-matched untrained controls) with an age of 61.2±8.2 years volunteered to participate in the study. Two days after assessing 1-RM, an acute exercise protocol (3 sets, 70-75% of one-repetition maximum until voluntary fatigue) was applied unilaterally on the dominant leg while the other leg served as control. Three hours after termination of the exercise, skeletal muscle tissue was obtained from m. vastus lateralis of both legs. RESULTS Acute resistance exercise led to an up-regulation (>1.5-fold) of 14 genes in controls and of 13 genes in weightlifters. The transcription factors FOS and early growth response 1 (EGR1), as well as the E3 protein ligase TRIM63 comprised the most responsive genes to resistance exercise (EGR1:15.7-fold increase, P=0.003, FOS: 36.3-fold increase, P<0.001; TRIM63: 2.9-fold increase, P<0.001). In addition, myostatin levels were decreased in the exercised leg (0.6-fold, P<0.001). FOXO3 gene expression was significantly higher in weightlifters than in untrained controls (1.5-fold, P=0.042). CONCLUSIONS Trained and untrained older adults respond to an acute bout of resistance exercise in a very similar way irrespective of training status, although some differences exist in FOXO3, potentially reflecting the superior capacity of trained persons in regulating cellular homeostasis.
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Affiliation(s)
- Barbara Wessner
- Center for Sport Science and University Sports, University of Vienna, Vienna, Austria -
| | - Martin Ploder
- Danube Hospital, Social Medical Center East, Vienna, Austria
| | - Harald Tschan
- Center for Sport Science and University Sports, University of Vienna, Vienna, Austria
| | | | | | - Eva-Maria Strasser
- Karl Landsteiner Institute for Remobilization and Functional Health/Institute for Physical Medicine and Rehabilitation, Kaiser Franz Joseph Hospital, Social Medical Center South, Vienna, Austria
| | - Norbert Bachl
- Center for Sport Science and University Sports, University of Vienna, Vienna, Austria.,Austrian Institute for Sports Medicine, Vienna, Austria
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Shen S, Liao Q, Liu J, Pan R, Lee SMY, Lin L. Myricanol rescues dexamethasone-induced muscle dysfunction via a sirtuin 1-dependent mechanism. J Cachexia Sarcopenia Muscle 2019; 10:429-444. [PMID: 30793539 PMCID: PMC6463464 DOI: 10.1002/jcsm.12393] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Muscle atrophy and weakness are adverse effects of high dose or the sustained usage of glucocorticoids. Loss of mitochondria and degradation of protein are highly correlated with muscle dysfunction. The deacetylase sirtuin 1 (SIRT1) plays a vital role in muscle remodelling. The current study was designed to identify myricanol as a SIRT1 activator, which could protect skeletal muscle against dexamethasone-induced wasting. METHODS The dexamethasone-induced atrophy in C2C12 myotubes was evaluated by expression of myosin heavy chain, muscle atrophy F-box (atrogin-1), and muscle ring finger 1 (MuRF1), using western blots. The mitochondrial content and oxygen consumption were assessed by MitoTracker staining and extracellular flux analysis, respectively. Muscle dysfunction was established in male C57BL/6 mice (8-10 weeks old, n = 6) treated with a relatively high dose of dexamethasone (25 mg/kg body weight, i.p., 10 days). Body weight, grip strength, forced swimming capacity, muscle weight, and muscle histology were assessed. The expression of proteolysis-related, autophagy-related, apoptosis-related, and mitochondria-related proteins was analysed by western blots or immunoprecipitation. RESULTS Myricanol (10 μM) was found to rescue dexamethasone-induced muscle atrophy and dysfunction in C2C12 myotubes, indicated by increased expression of myosin heavy chain (0.33 ± 0.14 vs. 0.89 ± 0.21, *P < 0.05), decreased expression of atrogin-1 (2.31 ± 0.67 vs. 1.53 ± 0.25, *P < 0.05) and MuRF1 (1.55 ± 0.08 vs. 0.99 ± 0.12, **P < 0.01), and elevated ATP production (3.83 ± 0.46 vs. 5.84 ± 0.79 nM/mg protein, **P < 0.01), mitochondrial content (68.12 ± 10.07% vs. 116.38 ± 5.12%, *P < 0.05), and mitochondrial oxygen consumption (166.59 ± 22.89 vs. 223.77 ± 22.59 pmol/min, **P < 0.01). Myricanol directly binds and activates SIRT1, with binding energy of -5.87 kcal/mol. Through activating SIRT1 deacetylation, myricanol inhibits forkhead box O 3a transcriptional activity to reduce protein degradation, induces autophagy to enhance degraded protein clearance, and increases peroxisome proliferator-activated receptor γ coactivator-1α activity to promote mitochondrial biogenesis. In dexamethasone-induced muscle wasting C57BL/6 mice, 5 mg/kg myricanol treatment reduces the loss of muscle mass; the percentages of quadriceps and gastrocnemius muscle in myricanol-treated mice are 1.36 ± 0.02% and 0.87 ± 0.08%, respectively (cf. 1.18 ± 0.06% and 0.78 ± 0.05% in dexamethasone-treated mice, respectively). Myricanol also rescues dexamethasone-induced muscle weakness, indicated by improved grip strength (70.90 ± 4.59 vs. 120.58 ± 7.93 g, **P < 0.01) and prolonged swimming exhaustive time (48.80 ± 11.43 vs. 83.75 ± 15.19 s, **P < 0.01). Myricanol prevents dexamethasone-induced muscle atrophy and weakness by activating SIRT1, to reduce muscle protein degradation, enhance autophagy, and promote mitochondrial biogenesis and function in mice. CONCLUSIONS Myricanol ameliorates dexamethasone-induced skeletal muscle wasting by activating SIRT1, which might be developed as a therapeutic agent for treatment of muscle atrophy and weakness.
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Affiliation(s)
- Shengnan Shen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, China
| | - Qiwen Liao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, China
| | - Jingxin Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, China
| | - Ruile Pan
- Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, 100193, China
| | - Simon Ming-Yuen Lee
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau, China.,Zhuhai UM Science & Technology Research Institute, Zhuhai, Guangdong, China
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31
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Waltz TB, Fivenson EM, Morevati M, Li C, Becker KG, Bohr VA, Fang EF. Sarcopenia, Aging and Prospective Interventional Strategies. Curr Med Chem 2019; 25:5588-5596. [PMID: 28762310 DOI: 10.2174/0929867324666170801095850] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 04/07/2017] [Accepted: 04/07/2017] [Indexed: 02/07/2023]
Abstract
Sarcopenia, or age-related muscle decline, occurs in most organisms and burdens both human health and the healthcare system. As our population ages, additional options for treating sarcopenia are needed. Mitochondrial dysfunction is implicated in the onset of sarcopenia, so therapies directed at improving mitochondrial function in muscle should be considered. Many naturally-occurring compounds, derived from commonly consumed foods, possess anti-sarcopenic effects, such asnicotinamide riboside, tomatidine, and Urolithin A. These naturally-occurring compounds can improve mitochondrial health and efficiency by modulating mitochondrial biogenesis, cellular stress resistance, or mitophagy. Further research should assess whether compounds that improve mitochondrial health can attenuate sarcopenia in humans.
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Affiliation(s)
- Tyler B Waltz
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States
| | - Elayne M Fivenson
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States
| | - Marya Morevati
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States.,Danish Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Chuanhao Li
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8276, United States
| | - Kevin G Becker
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States.,Danish Center for Healthy Aging, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Evandro F Fang
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States.,Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, 1478 , Lørenskog, Norway
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32
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He J, Tu C, Liu Y. Role of lncRNAs in aging and age-related diseases. Aging Med (Milton) 2018; 1:158-175. [PMID: 31942494 PMCID: PMC6880696 DOI: 10.1002/agm2.12030] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 01/10/2023] Open
Abstract
Aging is progressive physiological degeneration and consequently declined function, which is linked to senescence on both cellular and organ levels. Accumulating studies indicate that long noncoding RNAs (lncRNAs) play important roles in cellular senescence at all levels-transcriptional, post-transcriptional, translational, and post-translational. Understanding the molecular mechanism of lncRNAs underlying senescence could facilitate interpretation and intervention of aging and age-related diseases. In this review, we describe categories of known and novel lncRNAs that have been involved in the progression of senescence. We also identify the lncRNAs implicated in diseases arising from age-driven degeneration or dysfunction in some representative organs and systems (brains, liver, muscle, cardiovascular system, bone pancreatic islets, and immune system). Improved comprehension of lncRNAs in the aging process on all levels, from cell to organismal, may provide new insights into the amelioration of age-related pathologies and prolonged healthspan.
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Affiliation(s)
- Jieyu He
- Department of GeriatricsThe Second Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Chao Tu
- Department of OrthopedicsThe Second Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Youshuo Liu
- Department of GeriatricsThe Second Xiangya HospitalCentral South UniversityChangshaHunanChina
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33
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Lin IH, Chang JL, Hua K, Huang WC, Hsu MT, Chen YF. Skeletal muscle in aged mice reveals extensive transformation of muscle gene expression. BMC Genet 2018; 19:55. [PMID: 30089464 PMCID: PMC6083496 DOI: 10.1186/s12863-018-0660-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/26/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Aging leads to decreased skeletal muscle function in mammals and is associated with a progressive loss of muscle mass, quality and strength. Age-related muscle loss (sarcopenia) is an important health problem associated with the aged population. RESULTS We investigated the alteration of genome-wide transcription in mouse skeletal muscle tissue (rectus femoris muscle) during aging using a high-throughput sequencing technique. Analysis revealed significant transcriptional changes between skeletal muscles of mice at 3 (young group) and 24 (old group) months of age. Specifically, genes associated with energy metabolism, cell proliferation, muscle myosin isoforms, as well as immune functions were found to be altered. We observed several interesting gene expression changes in the elderly, many of which have not been reported before. CONCLUSIONS Those data expand our understanding of the various compensatory mechanisms that can occur with age, and further will assist in the development of methods to prevent and attenuate adverse outcomes of aging.
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Affiliation(s)
- I-Hsuan Lin
- VYM Genome Research Center, National Yang-Ming University, Taipei, 112, Taiwan
| | - Junn-Liang Chang
- Department of Pathology & Laboratory Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, 325, Taiwan
| | - Kate Hua
- VYM Genome Research Center, National Yang-Ming University, Taipei, 112, Taiwan
| | - Wan-Chen Huang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, No.250, Wu-Hsing Street, Taipei, 11031, Taiwan
| | - Ming-Ta Hsu
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, 112, Taiwan
| | - Yi-Fan Chen
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, No.250, Wu-Hsing Street, Taipei, 11031, Taiwan.
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34
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Lakhdar R, McGuinness D, Drost EM, Shiels PG, Bastos R, MacNee W, Rabinovich RA. Role of accelerated aging in limb muscle wasting of patients with COPD. Int J Chron Obstruct Pulmon Dis 2018; 13:1987-1998. [PMID: 29970961 PMCID: PMC6022820 DOI: 10.2147/copd.s155952] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Purpose Skeletal muscle wasting is an independent predictor of health-related quality of life and survival in patients with COPD, but the complexity of molecular mechanisms associated with this process has not been fully elucidated. We aimed to determine whether an impaired ability to repair DNA damage contributes to muscle wasting and the accelerated aging phenotype in patients with COPD. Patients and methods The levels of phosphorylated H2AX (γH2AX), a molecule that promotes DNA repair, were assessed in vastus lateralis biopsies from 10 COPD patients with low fat-free mass index (FFMI; COPDL), 10 with preserved FFMI and 10 age- and gender-matched healthy controls. A panel of selected markers for cellular aging processes (CDKN2A/p16ink4a, SIRT1, SIRT6, and telomere length) were also assessed. Markers of oxidative stress and cell damage and a panel of pro-inflammatory and anti-inflammatory cytokines were evaluated. Markers of muscle regeneration and apoptosis were also measured. Results We observed a decrease in γH2AX expression in COPDL, which occurred in association with a tendency to increase in CDKN2A/p16ink4a, and a significant decrease in SIRT1 and SIRT6 protein levels. Cellular damage and muscle inflammatory markers were also increased in COPDL. Conclusion These data are in keeping with an accelerated aging phenotype as a result of impaired DNA repair and dysregulation of cellular homeostasis in the muscle of COPDL. These data indicate cellular degeneration via stress-induced premature senescence and associated inflammatory responses abetted by the senescence-associated secretory phenotype and reflect an increased expression of markers of oxidative stress and inflammation.
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Affiliation(s)
- Ramzi Lakhdar
- ELEGI Colt Laboratory, MRC Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK,
| | - Dagmara McGuinness
- Wolfson Wohl Translational Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Ellen M Drost
- ELEGI Colt Laboratory, MRC Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK,
| | - Paul G Shiels
- Wolfson Wohl Translational Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - William MacNee
- ELEGI Colt Laboratory, MRC Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK, .,Respiratory Department, Royal Infirmary of Edinburgh, Edinburgh, UK,
| | - Roberto A Rabinovich
- ELEGI Colt Laboratory, MRC Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK, .,Respiratory Department, Royal Infirmary of Edinburgh, Edinburgh, UK,
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35
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Zullo A, Simone E, Grimaldi M, Musto V, Mancini FP. Sirtuins as Mediator of the Anti-Ageing Effects of Calorie Restriction in Skeletal and Cardiac Muscle. Int J Mol Sci 2018; 19:E928. [PMID: 29561771 PMCID: PMC5979282 DOI: 10.3390/ijms19040928] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/14/2018] [Accepted: 03/20/2018] [Indexed: 12/17/2022] Open
Abstract
Fighting diseases and controlling the signs of ageing are the major goals of biomedicine. Sirtuins, enzymes with mainly deacetylating activity, could be pivotal targets of novel preventive and therapeutic strategies to reach such aims. Scientific proofs are accumulating in experimental models, but, to a minor extent, also in humans, that the ancient practice of calorie restriction could prove an effective way to prevent several degenerative diseases and to postpone the detrimental signs of ageing. In the present review, we summarize the evidence about the central role of sirtuins in mediating the beneficial effects of calorie restriction in skeletal and cardiac muscle since these tissues are greatly damaged by diseases and advancing years. Moreover, we entertain the possibility that the identification of sirtuin activators that mimic calorie restriction could provide the benefits without the inconvenience of this dietary style.
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Affiliation(s)
- Alberto Zullo
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy.
- CEINGE Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy.
| | - Emanuela Simone
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy.
| | - Maddalena Grimaldi
- Department of Pediatric Oncology and Hematology, Charité University Hospital, 13353 Berlin, Germany.
| | - Vincenzina Musto
- Department of Sciences and Technologies, University of Sannio, 82100 Benevento, Italy.
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36
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Li Y, Chen X, Sun H, Wang H. Long non-coding RNAs in the regulation of skeletal myogenesis and muscle diseases. Cancer Lett 2017; 417:58-64. [PMID: 29253523 DOI: 10.1016/j.canlet.2017.12.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 12/07/2017] [Indexed: 12/11/2022]
Abstract
Skeletal muscle myogenesis during development and the injury induced regeneration contribute to the formation and maintenance of muscle tissue. Emerging studies have demonstrated that long non-coding RNAs (lncRNAs) participate in the regulation of gene expression during skeletal myogenesis and their aberrant expression is associated with several muscular diseases. In this review, we summarize recent studies of lncRNAs in the regulation of myogenesis and muscle diseases with mechanistic characterization. These findings have greatly enhanced our understanding of gene regulatory mechanisms governing muscle formation and regeneration, which will eventually lead to novel therapeutics against various muscle diseases.
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Affiliation(s)
- Yuying Li
- Department of Chemical Pathology, Chinese University of Hong Kong, Hong Kong, China
| | - Xiaona Chen
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Hao Sun
- Department of Chemical Pathology, Chinese University of Hong Kong, Hong Kong, China
| | - Huating Wang
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, China.
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37
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Taka C, Hayashi R, Shimokawa K, Tokui K, Okazawa S, Kambara K, Inomata M, Yamada T, Matsui S, Tobe K. SIRT1 and FOXO1 mRNA expression in PBMC correlates to physical activity in COPD patients. Int J Chron Obstruct Pulmon Dis 2017; 12:3237-3244. [PMID: 29138552 PMCID: PMC5680968 DOI: 10.2147/copd.s144969] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background Physical activity (PA) is considered as one of the most important prognostic predictors in chronic obstructive pulmonary disease (COPD) patients. Longevity gene, SIRT1, is reported to be involved in the pathogenesis of COPD by regulating the signaling pathways of oxidative stress, inflammation, and aging. We hypothesize that SIRT1 and related genes are also associated with the benefits of PA in COPD patients. Methods Eighteen COPD outpatients were enrolled in this study, and their PA level was assessed with an accelerometer. We assessed the SIRT1 and related genes mRNA expression levels in the peripheral blood mononuclear cells (PBMCs) of the subjects. We carried out respiratory function testing, blood gas analysis, the 6-minute walk test, and measurement of the cross-sectional area of the erector spinae muscles (ESMCSA) by chest computed tomography. We analyzed the association of PA with the results of each of the examinations. Results The mean age was 72±9 years, and the mean forced expiratory volume in 1 second was 1.4±0.56 L (52%±19% predicted). Our findings revealed a correlation between the daily PA and ESMCSA. The SIRT1 and Forkhead box O (FOXO)1 mRNA expression levels in PBMCs were positively correlated with moderate-PA time (r=0.60, p=0.008 for SIRT1 and r=0.59, p=0.01 for FOXO1).
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Affiliation(s)
- Chihiro Taka
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Ryuji Hayashi
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Kazuki Shimokawa
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Kotaro Tokui
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Seisuke Okazawa
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Kenta Kambara
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Minehiko Inomata
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Toru Yamada
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Shoko Matsui
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
| | - Kazuyuki Tobe
- First Department of Internal Medicine, Faculty of Medicine, University of Toyama, Sugitani, Toyama, Toyama, Japan
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38
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Pardo PS, Lopez MA, Mohamed JS, Boriek AM. Anisotropic mechanosensitive pathways in the diaphragm and their implications in muscular dystrophies. J Muscle Res Cell Motil 2017; 38:437-446. [PMID: 28986699 DOI: 10.1007/s10974-017-9483-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 09/13/2017] [Indexed: 11/24/2022]
Abstract
The diaphragm is the "respiratory pump;" the muscle that generates pressure to allow ventilation. Diaphragm muscles play a vital function and thus are subjected to continuous mechanical loading. One of its peculiarities is the ability to generate distinct mechanical and biochemical responses depending on the direction through which the mechanical forces applied to it. Contractile forces originated from its contractile components are transmitted to other structural components of its muscle fibers and the surrounding connective tissue. The anisotropic mechanical properties of the diaphragm are translated into biochemical signals that are directionally mechanosensitive by mechanisms that appear to be unique to this muscle. Here, we reviewed the current state of knowledge on the biochemical pathways regulated by mechanical signals emphasizing their anisotropic behavior in the normal diaphragm and analyzed how they are affected in muscular dystrophies.
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Affiliation(s)
- Patricia S Pardo
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Michael A Lopez
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Junaith S Mohamed
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.,Laboratory of Muscle Biology and Sarcopenia, Division of Exercise Physiology, Department of Human Performance, Center for Cardiovascular and Respiratory Sciences, West Virginia University, School of Medicine, Morgantown, WV, 26506, USA
| | - Aladin M Boriek
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
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39
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Proctor CJ, Goljanek-Whysall K. Using computer simulation models to investigate the most promising microRNAs to improve muscle regeneration during ageing. Sci Rep 2017; 7:12314. [PMID: 28951568 PMCID: PMC5614911 DOI: 10.1038/s41598-017-12538-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 09/05/2017] [Indexed: 01/17/2023] Open
Abstract
MicroRNAs (miRNAs) regulate gene expression through interactions with target sites within mRNAs, leading to enhanced degradation of the mRNA or inhibition of translation. Skeletal muscle expresses many different miRNAs with important roles in adulthood myogenesis (regeneration) and myofibre hypertrophy and atrophy, processes associated with muscle ageing. However, the large number of miRNAs and their targets mean that a complex network of pathways exists, making it difficult to predict the effect of selected miRNAs on age-related muscle wasting. Computational modelling has the potential to aid this process as it is possible to combine models of individual miRNA:target interactions to form an integrated network. As yet, no models of these interactions in muscle exist. We created the first model of miRNA:target interactions in myogenesis based on experimental evidence of individual miRNAs which were next validated and used to make testable predictions. Our model confirms that miRNAs regulate key interactions during myogenesis and can act by promoting the switch between quiescent/proliferating/differentiating myoblasts and by maintaining the differentiation process. We propose that a threshold level of miR-1 acts in the initial switch to differentiation, with miR-181 keeping the switch on and miR-378 maintaining the differentiation and miR-143 inhibiting myogenesis.
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Affiliation(s)
- Carole J Proctor
- MRC/Arthritis Research UK Centre for Musculoskeletal Ageing (CIMA), Institute of Cellular Medicine and Newcastle University Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK.
| | - Katarzyna Goljanek-Whysall
- MRC/Arthritis Research UK Centre for Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK
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40
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Lee D, Martinez B, Crocker DE, Ortiz RM. Fasting increases the phosphorylation of AMPK and expression of sirtuin1 in muscle of adult male northern elephant seals ( Mirounga angustirostris). Physiol Rep 2017; 5:5/4/e13114. [PMID: 28242816 PMCID: PMC5328766 DOI: 10.14814/phy2.13114] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/08/2016] [Accepted: 12/11/2016] [Indexed: 12/12/2022] Open
Abstract
Fasting typically suppresses thyroid hormone (TH)‐mediated cellular events and increases sirtuin 1 (SIRT1) activity. THs may regulate metabolism through nongenomic pathways and directly through activation of adenosine monophosphate‐activated protein kinase (AMPK). Adult male elephant seals (Mirounga angustirostris) are active, hypermetabolic, and normothermic during their annual breeding fast, which is characterized by stable TH levels. However, the contribution of TH to maintenance of their fasting metabolism is unknown. To investigate the fasting effects on cellular TH‐mediated events and its potential association with SIRT1 and AMPK, we quantified plasma TH levels, mRNA expressions of muscle SIRT1 and TH‐associated genes as well as the phosphorylation of AMPK in adult, male northern elephant seals (n = 10/fasting period) over 8 weeks of fasting (early vs. late). Deiodinase type I (DI1) expression increased twofold with fasting duration suggesting that the potential for TH‐mediated cellular signaling is increased. AMPK phosphorylation increased 61 ± 21% with fasting suggesting that cellular metabolism is increased. The mRNA expression of the TH transporter, monocarboxylate transporter 10 (MCT10), increased 2.4‐fold and the TH receptor (THrβ‐1) decreased 30‐fold suggesting that cellular uptake of T4 is increased, but its subsequent cellular effects such as activation of AMPK are likely nongenomic. The up‐regulation of SIRT1 mRNA expression (2.6‐fold) likely contributes to the nongenomic activation of AMPK by TH, which may be necessary to maintain the expression of PGC‐1α. These coordinated changes likely contribute to the up‐regulation of mitochondrial metabolism to support the energetic demands associated with prolonged fasting in adult seals.
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Affiliation(s)
- Debby Lee
- Department of Cellular and Molecular Biology, University of California, Merced, California
| | - Bridget Martinez
- Department of Cellular and Molecular Biology, University of California, Merced, California
| | - Daniel E Crocker
- Department of Biology, Sonoma State University, Rohnert Park, California
| | - Rudy M Ortiz
- Department of Cellular and Molecular Biology, University of California, Merced, California
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41
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Ziaaldini MM, Hosseini SR, Fathi M. Mitochondrial adaptations in aged skeletal muscle: effect of exercise training. Physiol Res 2016; 66:1-14. [PMID: 27982690 DOI: 10.33549/physiolres.933329] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The aging process is associated with a decline in mitochondrial functions. Mitochondria dysfunction is involved in initiation and progression of many health problems including neuromuscular, metabolic and cardiovascular diseases. It is well known that endurance exercise improves mitochondrial function, especially in the elderly. However, recent studies have demonstrated that resistance training lead also to substantial increases in mitochondrial function in skeletal muscle. A comprehensive understanding of the cellular mechanisms involved in the skeletal muscle mitochondrial adaptations to exercise training in healthy elderly subjects, can help practitioners to design and prescribe more effective exercise trainings.
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Affiliation(s)
- M M Ziaaldini
- Faculty of Sport Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.
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42
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Abstract
BACKGROUND: Skeletal muscle atrophy during aging, a process known as sarcopenia, is associated with muscle weakness, frailty, and the loss of independence in older adults. The mechanisms contributing to sarcopenia are not totally understood, but muscle fiber loss due to apoptosis, reduced stimulation of anabolic pathways, activation of catabolic pathways, denervation, and altered metabolism have been observed in muscle from old rodents and humans. OBJECTIVE: Recently, histone deacetylases (HDACs) have been implicated in muscle atrophy and dysfunction due to denervation, muscular dystrophy, and disuse, and HDACs play key roles in regulating metabolism in skeletal muscle. In this review, we will discuss the role of HDACs in muscle atrophy and the potential of HDAC inhibitors for the treatment of sarcopenia. CONCLUSIONS: Several HDAC isoforms are potential targets for intervention in sarcopenia. Inhibition of HDAC1 prevents muscle atrophy due to nutrient deprivation. HDAC3 regulates metabolism in skeletal muscle and may inhibit oxidative metabolism during aging. HDAC4 and HDAC5 have been implicated in muscle atrophy due to denervation, a process implicated in sarcopenia. HDAC inhibitors are already in use in the clinic, and there is promise in targeting HDACs for the treatment of sarcopenia.
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Affiliation(s)
- Michael E Walsh
- Energy Metabolism Laboratory, Swiss Federal Institute of Technology (ETH) Zurich , Zurich, Switzerland
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43
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Sano M, Meguro S, Kawai T, Suzuki Y. Increased grip strength with sodium-glucose cotransporter 2. J Diabetes 2016; 8:736-7. [PMID: 27038414 DOI: 10.1111/1753-0407.12402] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 03/28/2016] [Indexed: 01/10/2023] Open
Affiliation(s)
- Motoaki Sano
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Shu Meguro
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Toshihide Kawai
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo, Japan
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Wang L, Zhang T, Xi Y, Yang C, Sun C, Li D. Sirtuin 1 promotes the proliferation of C2C12 myoblast cells via the myostatin signaling pathway. Mol Med Rep 2016; 14:1309-15. [PMID: 27279047 DOI: 10.3892/mmr.2016.5346] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 05/16/2016] [Indexed: 11/05/2022] Open
Abstract
Accumulating evidence suggests that Sirtuin (Sirt)1 serves a significant role in proliferation and differentiation of myoblast cells; however the signaling mechanisms involved remain to be established. Myostatin (MSTN), a member of transforming growth factor‑β family, is an vital regulator of myoblast, fibroblast growth and differentiation. To determine if MSTN is involved in the regulation of myoblast cell proliferation by Sirt1, the present study administrated the Sirt1 activator resveratrol, inhibitor nicotinamide (NAM) and MSTN inhibitor SB431542 to C2C12 myoblast cells. It was demonstrated that the Sirt1 activator, resveratrol, repressed, whereas the Sirt1 inhibitor, NAM, enhanced C2C12 myoblast cells proliferation in a Sirt1‑dependent manner. SB431542 promoted the proliferation of C2C12 myoblast cells and reversed the inhibition effect of NAM on C2C12 myoblast cell proliferation. Additionally, resveratrol upregulated the mRNA expression of MyoD, but inhibited the expression of MSTN. Additionally, NAM significantly repressed the expression of MyoD and the phosphorylation of P107 (p‑P107), but enhanced the expression of MSTN and the protein expression of P107. SB431542 significantly mitigated the effect of NAM on the expression of MyoD, P107 and p‑P107. Taken together, these results indicated that Sirt1 promotes the proliferation of C2C12 myoblast cells via the MSTN signaling pathway.
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Affiliation(s)
- Liang Wang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Ting Zhang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yongyong Xi
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Cuili Yang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Chengcao Sun
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Dejia Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Wuhan, Hubei 430071, P.R. China
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Wang GQ, Wang Y, Xiong Y, Chen XC, Ma ML, Cai R, Gao Y, Sun YM, Yang GS, Pang WJ. Sirt1 AS lncRNA interacts with its mRNA to inhibit muscle formation by attenuating function of miR-34a. Sci Rep 2016; 6:21865. [PMID: 26902620 PMCID: PMC4763196 DOI: 10.1038/srep21865] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 02/02/2016] [Indexed: 12/29/2022] Open
Abstract
Recent studies demonstrate the functions of long non-coding RNAs (lncRNAs) in mediating gene expression at the transcriptional or translational level. Our previous study identified a Sirt1 antisense (AS) lncRNA transcribed from the Sirt1 AS strand. However, its role and regulatory mechanism is still unknown in myogenesis. Here, functional analyses showed that Sirt1 AS lncRNA overexpression promoted myoblast proliferation, but inhibited differentiation. Mechanistically, Sirt1 AS lncRNA was found to activate its sense gene, Sirt1. The luciferase assay provided evidences that Sirt1 AS lncRNA interacted with Sirt1 3′ UTR and rescued Sirt1 transcriptional suppression by competing with miR-34a. In addition, RNA stability assay showed that Sirt1 AS lncRNA prolonged Sirt1 mRNA half-life from 2 to 10 h. Ribonuclease protection assay further indicated that it fully bound to Sirt1 mRNA in the myoblast cytoplasm. Moreover, Sirt1 AS overexpression led to less mouse weight than the control because of less lean mass and greater levels of Sirt1, whereas the fat mass and levels of miR-34a were not altered. Based on the findings, a novel regulatory mechanism was found that Sirt1 AS lncRNA preferably interacted with Sirt1 mRNA forming RNA duplex to promote Sirt1 translation by competing with miR-34a, inhibiting muscle formation.
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Affiliation(s)
- Guo-qiang Wang
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Yu Wang
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Yan Xiong
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Xiao-Chang Chen
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Mei-ling Ma
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Rui Cai
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Yun Gao
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Yun-mei Sun
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Gong-She Yang
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
| | - Wei-Jun Pang
- Laboratory of Animal Fat Deposition &Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi 712100, China
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Assar ME, Angulo J, Rodríguez-Mañas L. Diabetes and ageing-induced vascular inflammation. J Physiol 2015; 594:2125-46. [PMID: 26435167 DOI: 10.1113/jp270841] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/28/2015] [Indexed: 12/16/2022] Open
Abstract
Diabetes and the ageing process independently increase the risk for cardiovascular disease (CVD). Since incidence of diabetes increases as people get older, the diabetic older adults represent the largest population of diabetic subjects. This group of patients would potentially be threatened by the development of CVD related to both ageing and diabetes. The relationship between CVD, ageing and diabetes is explained by the negative impact of these conditions on vascular function. Functional and clinical evidence supports the role of vascular inflammation induced by the ageing process and by diabetes in vascular impairment and CVD. Inflammatory mechanisms in both aged and diabetic vasculature include pro-inflammatory cytokines, vascular hyperactivation of nuclear factor-кB, increased expression of cyclooxygenase and inducible nitric oxide synthase, imbalanced expression of pro/anti-inflammatory microRNAs, and dysfunctional stress-response systems (sirtuins, Nrf2). In contrast, there are scarce data regarding the interaction of these mechanisms when ageing and diabetes co-exist and its impact on vascular function. Older diabetic animals and humans display higher vascular impairment and CVD risk than those either aged or diabetic, suggesting that chronic low-grade inflammation in ageing creates a vascular environment favouring the mechanisms of vascular damage driven by diabetes. Further research is needed to determine the specific inflammatory mechanisms responsible for exacerbated vascular impairment in older diabetic subjects in order to design effective therapeutic interventions to minimize the impact of vascular inflammation. This would help to prevent or delay CVD and the specific clinical manifestations (cognitive decline, frailty and disability) promoted by diabetes-induced vascular impairment in the elderly.
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Affiliation(s)
- Mariam El Assar
- Instituto de Investigación Sanitaria del Hospital Universitario de Getafe, Getafe, Spain
| | - Javier Angulo
- Instituto Ramón y Cajal de Investigación Sanitaria, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Leocadio Rodríguez-Mañas
- Instituto de Investigación Sanitaria del Hospital Universitario de Getafe, Getafe, Spain.,Servicio de Geriatría, Hospital Universitario de Getafe, Getafe, Spain
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Kim J, Kim KM, Noh JH, Yoon JH, Abdelmohsen K, Gorospe M. Long noncoding RNAs in diseases of aging. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2015; 1859:209-21. [PMID: 26141605 DOI: 10.1016/j.bbagrm.2015.06.013] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/13/2015] [Accepted: 06/24/2015] [Indexed: 12/22/2022]
Abstract
Aging is a process during which progressive deteriorating of cells, tissues, and organs over time lead to loss of function, disease, and death. Towards the goal of extending human health span, there is escalating interest in understanding the mechanisms that govern aging-associated pathologies. Adequate regulation of expression of coding and noncoding genes is critical for maintaining organism homeostasis and preventing disease processes. Long noncoding RNAs (lncRNAs) are increasingly recognized as key regulators of gene expression at all levels--transcriptional, post-transcriptional and post-translational. In this review, we discuss our emerging understanding of lncRNAs implicated in aging illnesses. We focus on diseases arising from age-driven impairment in energy metabolism (obesity, diabetes), the declining capacity to respond homeostatically to proliferative and damaging stimuli (cancer, immune dysfunction), and neurodegeneration. We identify the lncRNAs involved in these ailments and discuss the rising interest in lncRNAs as diagnostic and therapeutic targets to ameliorate age-associated pathologies and prolong health. This article is part of a Special Issue entitled: Clues to long noncoding RNA taxonomy1, edited by Dr. Tetsuro Hirose and Dr. Shinichi Nakagawa.
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Affiliation(s)
- Jiyoung Kim
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Kyoung Mi Kim
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Ji Heon Noh
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Je-Hyun Yoon
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Kotb Abdelmohsen
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA.
| | - Myriam Gorospe
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA.
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Treadmill training increases SIRT-1 and PGC-1 α protein levels and AMPK phosphorylation in quadriceps of middle-aged rats in an intensity-dependent manner. Mediators Inflamm 2014; 2014:987017. [PMID: 25002755 PMCID: PMC4070581 DOI: 10.1155/2014/987017] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/08/2014] [Accepted: 04/15/2014] [Indexed: 01/07/2023] Open
Abstract
The present study investigated the effects of running at 0.8 or 1.2 km/h on inflammatory proteins (i.e., protein levels of TNF- α , IL-1 β , and NF- κ B) and metabolic proteins (i.e., protein levels of SIRT-1 and PGC-1 α , and AMPK phosphorylation) in quadriceps of rats. Male Wistar rats at 3 (young) and 18 months (middle-aged rats) of age were divided into nonexercised (NE) and exercised at 0.8 or 1.2 km/h. The rats were trained on treadmill, 50 min per day, 5 days per week, during 8 weeks. Forty-eight hours after the last training session, muscles were removed, homogenized, and analyzed using biochemical and western blot techniques. Our results showed that: (a) running at 0.8 km/h decreased the inflammatory proteins and increased the metabolic proteins compared with NE rats; (b) these responses were lower for the inflammatory proteins and higher for the metabolic proteins in young rats compared with middle-aged rats; (c) running at 1.2 km/h decreased the inflammatory proteins and increased the metabolic proteins compared with 0.8 km/h; (d) these responses were similar between young and middle-aged rats when trained at 1.2 km. In summary, the age-related increases in inflammatory proteins, and the age-related declines in metabolic proteins can be reversed and largely improved by treadmill training.
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Ting CH, Ho PJ, Yen BL. Age-related decreases of serum-response factor levels in human mesenchymal stem cells are involved in skeletal muscle differentiation and engraftment capacity. Stem Cells Dev 2014; 23:1206-16. [PMID: 24576136 DOI: 10.1089/scd.2013.0231] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Skeletal muscle (SkM) comprise ∼40% of human body weight. Injury or damage to this important tissue can result in physical disability, and in severe cases is difficult for its endogenous stem cell-the satellite cell-to reverse effectively. Mesenchymal stem cells (MSC) are postnatal progenitor/stem cells that possess multilineage mesodermal differentiation capacity, including toward SkM. Adult bone marrow (BM) is the best-studied source of MSCs; however, aging also decreases BMMSC numbers and can adversely affect differentiation capacity. Therefore, we asked whether human sources of developmentally early stage mesenchymal stem cells (hDE-MSCs) isolated from embryonic stem cells, fetal bone, and term placenta could be cellular sources for SkM repair. Under standard muscle-inducing conditions, hDE-MPCs differentiate toward a SkM lineage rather than cardiomyocytic or smooth muscle lineages, as evidenced by increased expression of SkM-associated markers and in vitro myotube formation. In vivo transplantation revealed that SkM-differentiated hDE-MSCs can efficiently incorporate into host SkM tissue in a mouse model of SkM injury. In contrast, adult BMMSCs do not express SkM-associated genes after in vitro SkM differentiation nor engraft in vivo. Further investigation of possible factors responsible for this difference in SkM differentiation potential revealed that, compared with adult BMMSCs, hDE-MSCs expressed higher levels of serum response factor (SRF), a transcription factor critical for SkM lineage commitment. Moreover, knockdown of SRF in hDE-MSCs resulted in decreased expression of SkM-related genes after in vitro differentiation and decreased in vivo engraftment. Our results implicate SRF as a key factor in age-related SkM differentiation capacity of MSCs, and demonstrate that hDE-MSCs are possible candidates for SkM repair.
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Affiliation(s)
- Chiao-Hsuan Ting
- 1 Graduate Institute of Life Sciences, National Defense Medical Center , Taipei, Taiwan
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Kao CL, Tsai KL, Cheng YY, Kuo CH, Lee SD, Chan RC. Vestibular rehabilitation ameliorates chronic dizziness through the SIRT1 axis. Front Aging Neurosci 2014; 6:27. [PMID: 24624081 PMCID: PMC3941041 DOI: 10.3389/fnagi.2014.00027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 02/13/2014] [Indexed: 02/05/2023] Open
Abstract
Dizziness is a common clinical symptom frequently referred to general neurologists and practitioners. Exercise intervention, in the form of vestibular rehabilitation, is known as an effective clinical management for dizziness. This intervention is reported to have a functional role in correcting dizziness, improving gaze stability, retraining balance and gait, and enhancing physical fitness. Dizziness is known to be highly related to inflammation and oxidative stress. SIRT1 is a major molecule for the regulation of inflammation and mitigation of oxidative stress in chronic diseases such as atherosclerosis and chronic obstructive pulmonary disease. However, the bio-molecular roles of SIRT1 involved in the pathogenesis of dizziness are still largely unclear. In this study, a total of 30 subjects were recruited (15 patients with chronic dizziness, and 15 age/gender matched non-dizzy control subjects). The dizzy subjects group received 18 sessions of 30-min vestibular training. We found that the mRNA and protein expression levels of SIRT1 in the blood samples of chronic dizzy patients were repressed compared with those of healthy controls. After vestibular training, the dizzy patients had significant symptomatic improvements. The SIRT1 expression and its downstream genes (PPAR-γ and PGC-1α) were upregulated after vestibular exercises in dizzy subjects. Notably, the catalytic activity of SIRT1, NADPH and antioxidant enzyme activities were also activated in dizzy patients after vestibular training. Furthermore, vestibular exercise training reduced oxidative events and p53 expression in patients with dizziness. This study demonstrated that vestibular exercise training improved dizziness symptoms, and mechanisms for alleviation of chronic dizziness may partly involve the activation of the SIRT1 axis and the repression of redox status.
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Affiliation(s)
- Chung-Lan Kao
- Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital Taipei, Taiwan ; School of Medicine, National Yang-Ming University Taipei, Taiwan ; Department of Physical Therapy and Assistive Technology, School of Biomedical Science and Engineering, National Yang-Ming University Taipei, Taiwan
| | - Kun-Ling Tsai
- Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital Taipei, Taiwan ; School of Medicine, National Yang-Ming University Taipei, Taiwan
| | - Yuan-Yang Cheng
- School of Medicine, National Yang-Ming University Taipei, Taiwan ; Department of Physical Medicine and Rehabilitation, Taichung Veterans General Hospital Taichung, Taiwan
| | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, Department of Sport Sciences, University of Taipei Taipei, Taiwan
| | - Shin-Da Lee
- Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University Taichung, Taiwan
| | - Rai-Chi Chan
- Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital Taipei, Taiwan ; School of Medicine, National Yang-Ming University Taipei, Taiwan
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