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Liu X, Zhou Y, Qi Z, Huang C, Lin D. Taurine Alleviates Ferroptosis-Induced Metabolic Impairments in C2C12 Myoblasts by Stabilizing the Labile Iron Pool and Improving Redox Homeostasis. J Proteome Res 2024; 23:3444-3459. [PMID: 39024330 DOI: 10.1021/acs.jproteome.4c00123] [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] [Indexed: 07/20/2024]
Abstract
Ferroptosis adversely affects the viability, differentiation, and metabolic integrity of C2C12 myoblasts, contributing to the decline in skeletal muscle health. The intricate mechanisms behind this process are not fully understood. In this study, we induced ferroptosis in myoblasts using targeted inducers and found a marked decrease in specific redox metabolites, particularly taurine. Taurine supplementation effectively reversed the deleterious effects of ferroptosis, significantly increased cellular glutathione levels, reduced MDA and ROS levels, and rejuvenated impaired myogenic differentiation. Furthermore, taurine downregulated HO-1 expression and decreased intracellular Fe2+ levels, thereby stabilizing the labile iron pool. Using NMR metabolomic analysis, we observed that taurine profoundly promoted glycerophospholipid metabolism, which is critical for cell membrane repair, and enhanced mitochondrial bioenergetics, thereby increasing the energy reserves essential for muscle satellite cell regeneration. These results suggest that taurine is a potent ferroptosis inhibitor that attenuates key drivers of this process, strengthens oxidative defenses, and improves redox homeostasis. This combined effect protects cells from ferroptosis-induced damage. This study highlights the potential of taurine as a valuable ferroptosis inhibitor that protects skeletal muscle from ferroptosis-induced damage and provides a basis for therapeutic strategies to rejuvenate and facilitate the regeneration of aging skeletal muscle.
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Affiliation(s)
- Xi Liu
- Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yu Zhou
- Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhen Qi
- Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Caihua Huang
- Research and Communication Center of Exercise and Health, Xiamen University of Technology, Xiamen 361024, China
| | - Donghai Lin
- Key Laboratory for Chemical Biology of Fujian Province, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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2
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Dong W, Xu H, Wei W, Ning R, Chang Y. Advances in the study of ferroptosis and its relationship to autoimmune diseases. Int Immunopharmacol 2024; 140:112819. [PMID: 39096870 DOI: 10.1016/j.intimp.2024.112819] [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: 05/31/2024] [Revised: 07/10/2024] [Accepted: 07/25/2024] [Indexed: 08/05/2024]
Abstract
Ferroptosis represents a novel mode of programmed cell death characterized by the intracellular accumulation of iron and lipid peroxidation, culminating in oxidative stress and subsequent cell demise. Mounting evidence demonstrates that ferroptosis contributes significantly to the onset and progression of diverse pathological conditions and diseases, including infections, neurodegenerative disorders, tissue ischemia-reperfusion injury, and immune dysregulation. Recent investigations have underscored the pivotal role of ferroptosis in the pathogenesis of rheumatoid arthritis, ulcerative colitis, systemic lupus erythematosus, and asthma. This review provides a comprehensive overview of the current understanding of the regulatory mechanisms governing ferroptosis, particularly its interplay with iron, lipid, and amino acid metabolism. Furthermore, we explore the implications of ferroptosis in autoimmune diseases and deliberate on its potential as a promising therapeutic target for diverse autoimmune disorders.
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Affiliation(s)
- Weibo Dong
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Hepeng Xu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Rende Ning
- The Third Affiliated Hospital of Anhui Medical University (The First People's Hospital of Hefei), 390 Huaihe Road, Hefei 230061, Anhui, China.
| | - Yan Chang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China; Laboratory Animal Center, Anhui Medical University, Hefei 230032, China.
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3
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Qiao R, Guo J, Zhang C, Wang S, Fang J, Geng R, Kang SG, Huang K, Tong T. Diabetes-induced muscle wasting: molecular mechanisms and promising therapeutic targets. Crit Rev Food Sci Nutr 2024:1-17. [PMID: 39049742 DOI: 10.1080/10408398.2024.2382348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Diabetes has become a serious public health crisis, presenting significant challenges to individuals worldwide. As the largest organ in the human body, skeletal muscle is a significant target of this chronic disease, yet muscle wasting as a complication of diabetes is still not fully understood and effective treatment methods have yet to be developed. Here, we discuss the targets involved in inducing muscle wasting under diabetic conditions, both validated targets and emerging targets. Diabetes-induced skeletal muscle wasting is known to involve changes in various signaling molecules and pathways, such as protein degradation pathways, protein synthesis pathways, mitochondrial function, and oxidative stress inflammation. Recent studies have shown that some of these present potential as promising therapeutic targets, including the neuregulin 1/epidermal growth factor receptor family, advanced glycation end-products, irisin, ferroptosis, growth differentiation factor 15 and more. This study's investigation and discussion of such pathways and their potential applications provides a theoretical basis for the development of clinical treatments for diabetes-induced muscle wasting and a foundation for continued focus on this disease.
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Affiliation(s)
- Ruixue Qiao
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, The People's Republic of China
| | - Jingya Guo
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, The People's Republic of China
| | - Chengmei Zhang
- Guizhou Academy of Testing and Analysis, Guiyang, The People's Republic of China
| | - Sirui Wang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, The People's Republic of China
| | - Jingjing Fang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, The People's Republic of China
| | - Ruixuan Geng
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, The People's Republic of China
| | - Seong-Gook Kang
- Department of Food Engineering and Solar Salt Research Center, Mokpo National University, Muangun, Republic of Korea
| | - Kunlun Huang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, The People's Republic of China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, The People's Republic of China
- Beijing Laboratory for Food Quality and Safety, Beijing, The People's Republic of China
| | - Tao Tong
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, The People's Republic of China
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, The People's Republic of China
- Beijing Laboratory for Food Quality and Safety, Beijing, The People's Republic of China
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4
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Verdejo-Torres O, Klein DC, Novoa-Aponte L, Carrazco-Carrillo J, Bonilla-Pinto D, Rivera A, Fitisemanu F, Jiménez-González ML, Flinn L, Pezacki AT, Lanzirotti A, Ortiz-Frade LA, Chang CJ, Navea JG, Blaby-Haas C, Hainer SJ, Padilla-Benavides T. Cysteine Rich Intestinal Protein 2 is a copper-responsive regulator of skeletal muscle differentiation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.03.592485. [PMID: 38746126 PMCID: PMC11092763 DOI: 10.1101/2024.05.03.592485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Copper (Cu) is an essential trace element required for respiration, neurotransmitter synthesis, oxidative stress response, and transcriptional regulation. Imbalance in Cu homeostasis can lead to several pathological conditions, affecting neuronal, cognitive, and muscular development. Mechanistically, Cu and Cu-binding proteins (Cu-BPs) have an important but underappreciated role in transcription regulation in mammalian cells. In this context, our lab investigates the contributions of novel Cu-BPs in skeletal muscle differentiation using murine primary myoblasts. Through an unbiased synchrotron X-ray fluorescence-mass spectrometry (XRF/MS) metalloproteomic approach, we identified the murine cysteine rich intestinal protein 2 (mCrip2) in a sample that showed enriched Cu signal, which was isolated from differentiating primary myoblasts derived from mouse satellite cells. Immunolocalization analyses showed that mCrip2 is abundant in both nuclear and cytosolic fractions. Thus, we hypothesized that mCrip2 might have differential roles depending on its cellular localization in the skeletal muscle lineage. mCrip2 is a LIM-family protein with 4 conserved Zn2+-binding sites. Homology and phylogenetic analyses showed that mammalian Crip2 possesses histidine residues near two of the Zn2+-binding sites (CX2C-HX2C) which are potentially implicated in Cu+-binding and competition with Zn2+. Biochemical characterization of recombinant human hsCRIP2 revealed a high Cu+-binding affinity for two and four Cu+ ions and limited redox potential. Functional characterization using CRISPR/Cas9-mediated deletion of mCrip2 in primary myoblasts did not impact proliferation, but impaired myogenesis by decreasing the expression of differentiation markers, possibly attributed to Cu accumulation. Transcriptome analyses of proliferating and differentiating mCrip2 KO myoblasts showed alterations in mRNA processing, protein translation, ribosome synthesis, and chromatin organization. CUT&RUN analyses showed that mCrip2 associates with a select set of gene promoters, including MyoD1 and metallothioneins, acting as a novel Cu-responsive or Cu-regulating protein. Our work demonstrates novel regulatory functions of mCrip2 that mediate skeletal muscle differentiation, presenting new features of the Cu-network in myoblasts.
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Affiliation(s)
- Odette Verdejo-Torres
- Department of Molecular Biology and Biochemistry, Wesleyan University, CT, 06459. USA
| | - David C. Klein
- Department of Biological Sciences. University of Pittsburgh, Pittsburgh, PA. 15207. USA
| | - Lorena Novoa-Aponte
- Present address: Genetics and Metabolism Section, Liver Diseases Branch, National Institutes of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD. USA
| | | | - Denzel Bonilla-Pinto
- Department of Molecular Biology and Biochemistry, Wesleyan University, CT, 06459. USA
| | - Antonio Rivera
- Department of Molecular Biology and Biochemistry, Wesleyan University, CT, 06459. USA
| | | | | | - Lyra Flinn
- Chemistry Department. Skidmore College, Saratoga Springs New York, 12866. USA
| | - Aidan T. Pezacki
- Department of Chemistry. University of California, Berkeley, California, 94720. USA
| | - Antonio Lanzirotti
- Center for Advanced Radiation Sources, The University of Chicago, Lemont, IL 60439. USA
| | | | - Christopher J. Chang
- Department of Chemistry. University of California, Berkeley, California, 94720. USA
- Department of Molecular and Cell Biology. University of California, Berkeley, California, 94720. USA
| | - Juan G. Navea
- Chemistry Department. Skidmore College, Saratoga Springs New York, 12866. USA
| | - Crysten Blaby-Haas
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, USA & DOE Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA. USA
| | - Sarah J. Hainer
- Department of Biological Sciences. University of Pittsburgh, Pittsburgh, PA. 15207. USA
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5
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Chen Y, Zhang Y, Zhang S, Ren H. Molecular insights into sarcopenia: ferroptosis-related genes as diagnostic and therapeutic targets. J Biomol Struct Dyn 2024:1-19. [PMID: 38229237 DOI: 10.1080/07391102.2023.2298390] [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: 07/25/2023] [Accepted: 10/26/2023] [Indexed: 01/18/2024]
Abstract
Ferroptosis, characterized by iron accumulation and lipid peroxidation, leads to cell death. Growing evidence suggests the involvement of ferroptosis in sarcopenia. However, the fundamental ferroptosis-related genes (FRGs) for sarcopenia diagnosis, prognosis, and therapy remain elusive. This study aimed to identify molecular biomarkers of ferroptosis in sarcopenia patients. Gene expression profiles were obtained from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) between normal and sarcopenia samples were identified using the 'limma' package in R software. FRGs were extracted from GeneCards and FerrDB databases. Functional enrichment analysis determined the roles of DEGs using the 'clusterProfiler' package. A protein-protein network was constructed using Cytoscape software. Immune infiltration analysis and receiver operating characteristic (ROC) analysis were performed. mRNA-miRNA, mRNA-TF, and mRNA-drug interactions were predicted using ENCORI, hTFtarget, and CHIPBase databases. The network was visualized using Cytoscape. We identified 46 FRGs in sarcopenia. Functional enrichment analysis revealed their involvement in critical biological processes, including responses to steroid hormones and glucocorticoids. KEGG enrichment analysis implicated pathways such as carbon metabolism, ferroptosis, and glyoxylate in sarcopenia. Totally, 11 hub genes were identified, and ROC analysis demonstrated their potential as sensitive and specific markers for sarcopenia in both datasets. Additionally, differences in immune cell infiltration were observed between normal and sarcopenia samples. The hub genes identified in this study are closely associated with ferroptosis in sarcopenia and can effectively differentiate sarcopenia from controls. CDKN1A, CS, DLD, FOXO1, HSPB1, LDHA, MDH2, and YWHAZ show high sensitivity and specificity for sarcopenia diagnosis.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Yanzhong Chen
- School of Sport Science, Beijing Sport University, Beijing, China
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
| | - Yaonan Zhang
- School of Sport Science, Beijing Sport University, Beijing, China
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
- Department of orthopedics, Beijing Hospital, Beijing, China
| | - Sihan Zhang
- School of Sport Science, Beijing Sport University, Beijing, China
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
| | - Hong Ren
- School of Sport Science, Beijing Sport University, Beijing, China
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
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Zhang T, Li J, Li X, Liu Y. Intermuscular adipose tissue in obesity and related disorders: cellular origins, biological characteristics and regulatory mechanisms. Front Endocrinol (Lausanne) 2023; 14:1280853. [PMID: 37920255 PMCID: PMC10619759 DOI: 10.3389/fendo.2023.1280853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/01/2023] [Indexed: 11/04/2023] Open
Abstract
Intermuscular adipose tissue (IMAT) is a unique adipose depot interspersed between muscle fibers (myofibers) or muscle groups. Numerous studies have shown that IMAT is strongly associated with insulin resistance and muscular dysfunction in people with metabolic disease, such as obesity and type 2 diabetes. Moreover, IMAT aggravates obesity-related muscle metabolism disorders via secretory factors. Interestingly, researchers have discovered that intermuscular brown adipocytes in rodent models provide new hope for obesity treatment by acting on energy dissipation, which inspired researchers to explore the underlying regulation of IMAT formation. However, the molecular and cellular properties and regulatory processes of IMAT remain debated. Previous studies have suggested that muscle-derived stem/progenitor cells and other adipose tissue progenitors contribute to the development of IMAT. Adipocytes within IMAT exhibit features that are similar to either white adipocytes or uncoupling protein 1 (UCP1)-positive brown adipocytes. Additionally, given the heterogeneity of skeletal muscle, which comprises myofibers, satellite cells, and resident mesenchymal progenitors, it is plausible that interplay between these cellular components actively participate in the regulation of intermuscular adipogenesis. In this context, we review recent studies associated with IMAT to offer insights into the cellular origins, biological properties, and regulatory mechanisms of IMAT. Our aim is to provide novel ideas for the therapeutic strategy of IMAT and the development of new drugs targeting IMAT-related metabolic diseases.
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Affiliation(s)
- Ting Zhang
- Center of Obesity and Metabolic Diseases, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- Medical Research Center, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Jun Li
- Department of Orthopedics, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
| | - Xi Li
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Yanjun Liu
- Center of Obesity and Metabolic Diseases, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University & The Second Affiliated Hospital of Chengdu, Chongqing Medical University, Chengdu, China
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7
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GrönholdtKlein M, Gorzi A, Wang L, Edström E, Rullman E, Altun M, Ulfhake B. Emergence and Progression of Behavioral Motor Deficits and Skeletal Muscle Atrophy across the Adult Lifespan of the Rat. BIOLOGY 2023; 12:1177. [PMID: 37759577 PMCID: PMC10526071 DOI: 10.3390/biology12091177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023]
Abstract
The facultative loss of muscle mass and function during aging (sarcopenia) poses a serious threat to our independence and health. When activities of daily living are impaired (clinical phase), it appears that the processes leading to sarcopenia have been ongoing in humans for decades (preclinical phase). Here, we examined the natural history of sarcopenia in male outbred rats to compare the occurrence of motor behavioral deficits with the degree of muscle wasting and to explore the muscle-associated processes of the preclinical and clinical phases, respectively. Selected metrics were validated in female rats. We used the soleus muscle because of its long duty cycles and its importance in postural control. Results show that gait and coordination remain intact through middle age (40-60% of median lifespan) when muscle mass is largely preserved relative to body weight. However, the muscle shows numerous signs of remodeling with a shift in myofiber-type composition toward type I. As fiber-type prevalence shifted, fiber-type clustering also increased. The number of hybrid fibers, myofibers with central nuclei, and fibers expressing embryonic myosin increased from being barely detectable to a significant number (5-10%) at late middle age. In parallel, TGFβ1, Smad3, FBXO32, and MuRF1 mRNAs increased. In early (25-month-old) and advanced (30-month-old) aging, gait and coordination deteriorate with the progressive loss of muscle mass. In late middle age and early aging due to type II atrophy (>50%) followed by type I atrophy (>50%), the number of myofibers did not correlate with this process. In advanced age, atrophy is accompanied by a decrease in SCs and βCatenin mRNA, whereas several previously upregulated transcripts were downregulated. The re-expression of embryonic myosin in myofibers and the upregulation of mRNAs encoding the γ-subunit of the nicotinic acetylcholine receptor, the neuronal cell adhesion molecule, and myogenin that begins in late middle age suggest that one mechanism driving sarcopenia is the disruption of neuromuscular connectivity. We conclude that sarcopenia in rats, as in humans, has a long preclinical phase in which muscle undergoes extensive remodeling to maintain muscle mass and function. At later time points, these adaptive mechanisms fail, and sarcopenia becomes clinically manifest.
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Affiliation(s)
- Max GrönholdtKlein
- Department of Neuroscience, Karolinska Institutet, 171 77 Stockholm, Sweden;
| | - Ali Gorzi
- Department of Sport Sciences, University of Zanjan, Zanjan 45371-38791, Iran;
| | - Lingzhan Wang
- Department of Human Anatomy, Histology and Embryology, Inner Mongolia Minzu University, Tongliao 028000, China;
| | - Erik Edström
- Department of Clinical Neuroscience, Karolinska Institutet, 171 77 Stockholm, Sweden;
| | - Eric Rullman
- Department of Laboratory Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden; (E.R.); (M.A.)
| | - Mikael Altun
- Department of Laboratory Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden; (E.R.); (M.A.)
| | - Brun Ulfhake
- Department of Laboratory Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden; (E.R.); (M.A.)
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8
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Nan Y, Zhou Y, Dai Z, Yan T, Zhong P, Zhang F, Chen Q, Peng L. Role of nutrition in patients with coexisting chronic obstructive pulmonary disease and sarcopenia. Front Nutr 2023; 10:1214684. [PMID: 37614743 PMCID: PMC10442553 DOI: 10.3389/fnut.2023.1214684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 07/24/2023] [Indexed: 08/25/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is one of the most common chronic diseases in the elderly population and is characterized by persistent respiratory symptoms and airflow obstruction. During COPD progression, a variety of pulmonary and extrapulmonary complications develop, with sarcopenia being one of the most common extrapulmonary complications. Factors that contribute to the pathogenesis of coexisting COPD and sarcopenia include systemic inflammation, hypoxia, hypercapnia, oxidative stress, protein metabolic imbalance, and myocyte mitochondrial dysfunction. These factors, individually or in concert, affect muscle function, resulting in decreased muscle mass and strength. The occurrence of sarcopenia severely affects the quality of life of patients with COPD, resulting in increased readmission rates, longer hospital admission, and higher mortality. In recent years, studies have found that oral supplementation with protein, micronutrients, fat, or a combination of nutritional supplements can improve the muscle strength and physical performance of these patients; some studies have also elucidated the possible underlying mechanisms. This review aimed to elucidate the role of nutrition among patients with coexisting COPD and sarcopenia.
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Affiliation(s)
- Yayun Nan
- Department of Ningxia Geriatrics Medical Center, Ningxia People’s Hospital, Yinchuan, China
| | - Yuting Zhou
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ziyu Dai
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ting Yan
- Department of Ningxia Geriatrics Medical Center, Ningxia People’s Hospital, Yinchuan, China
| | - Pingping Zhong
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Fufeng Zhang
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qiong Chen
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Linlin Peng
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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9
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Alves FM, Ayton S, Bush AI, Lynch GS, Koopman R. Age-Related Changes in Skeletal Muscle Iron Homeostasis. J Gerontol A Biol Sci Med Sci 2023; 78:16-24. [PMID: 35869751 DOI: 10.1093/gerona/glac139] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Indexed: 01/31/2023] Open
Abstract
Sarcopenia is an age-related condition of slow, progressive loss of muscle mass and strength, which contributes to frailty, increased risk of hospitalization and mortality, and increased health care costs. The incidence of sarcopenia is predicted to increase to >200 million affected older adults worldwide over the next 40 years, highlighting the urgency for understanding biological mechanisms and developing effective interventions. An understanding of the mechanisms underlying sarcopenia remains incomplete. Iron in the muscle is important for various metabolic functions, including oxygen supply and electron transfer during energy production, yet these same chemical properties of iron may be deleterious to the muscle when either in excess or when biochemically unshackled (eg, in ferroptosis), it can promote oxidative stress and induce inflammation. This review outlines the mechanisms leading to iron overload in muscle with aging and evaluates the evidence for the iron overload hypothesis of sarcopenia. Based on current evidence, studies are needed to (a) determine the mechanisms leading to iron overload in skeletal muscle during aging; and (b) investigate whether skeletal muscles are functionally deficient in iron during aging leading to impairments in oxidative metabolism.
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Affiliation(s)
- Francesca M Alves
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Victoria, Australia
| | - Scott Ayton
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia
| | - Ashley I Bush
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Victoria, Australia
| | - René Koopman
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Victoria, Australia
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10
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Kadota Y, Yamanokuchi R, Ohnishi N, Matsuoka M, Kawakami T, Sato M, Suzuki S. Metallothionein Gene Deficiency Facilitates the Differentiation of C2C12 Myoblasts into Slow-Twitch Myotubes. Biol Pharm Bull 2023; 46:1240-1248. [PMID: 37661403 DOI: 10.1248/bpb.b23-00165] [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] [Indexed: 09/05/2023]
Abstract
Metallothionein (MT) 1 and 2 are ubiquitously expressed cysteine-rich, low molecular weight proteins. MT expression is upregulated in skeletal muscle during aging. MTs also play role in multiple types of skeletal muscle atrophy. Meanwhile, it has been reported that MT1 and MT2 gene deficiency increases myogenesis in MT knockout (MTKO) mice. However, little is known about the effect of MTs on muscle formation and atrophy. In this study, we investigated the effect of MT1 and MT2 gene knock-out using the clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (CRISPR-Cas9) system in an in vitro skeletal muscle differentiation model (C2C12 cell line). MT deficiency promoted myogenic differentiation and myotube formation in C2C12 cells. Muscle-specific transcription factors MyoD and myogenin were found to be upregulated at the late stage of myotube differentiation in MTKO cells. Furthermore, the fast-twitch myosin heavy chain (MyHC) protein expression was similar in MTKO and mock-transfected myotubes, but slow-MyHC expression was higher in MTKO cells than in mock cells. The MT gene deletion did not affect the number of fast MyHC-positive myotubes but increased the number of slow MyHC-positive myotubes. Treatment with the antioxidant N-acetylcysteine (NAC) inhibited the increase in the number of slow MyHC-positive myotubes as well as slow-MyHC expression in MTKO cells. In contrast, NAC treatment did not alter the number of fast MyHC-positive myotubes or the expression of fast-MyHC in MTKO cells. These results suggest that the antioxidant effects of MTs may be involved in slow-twitch myofiber formation in skeletal muscle.
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Affiliation(s)
- Yoshito Kadota
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Ryo Yamanokuchi
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Nodoka Ohnishi
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Mami Matsuoka
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | | | - Masao Sato
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Shinya Suzuki
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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Duan G, Li J, Duan Y, Zheng C, Guo Q, Li F, Zheng J, Yu J, Zhang P, Wan M, Long C. Mitochondrial Iron Metabolism: The Crucial Actors in Diseases. Molecules 2022; 28:29. [PMID: 36615225 PMCID: PMC9822237 DOI: 10.3390/molecules28010029] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Iron is a trace element necessary for cell growth, development, and cellular homeostasis, but insufficient or excessive level of iron is toxic. Intracellularly, sufficient amounts of iron are required for mitochondria (the center of iron utilization) to maintain their normal physiologic function. Iron deficiency impairs mitochondrial metabolism and respiratory activity, while mitochondrial iron overload promotes ROS production during mitochondrial electron transport, thus promoting potential disease development. This review provides an overview of iron homeostasis, mitochondrial iron metabolism, and how mitochondrial iron imbalances-induced mitochondrial dysfunction contribute to diseases.
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Affiliation(s)
- Geyan Duan
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianjun Li
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yehui Duan
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Changbing Zheng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Qiuping Guo
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengna Li
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Zheng
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiayi Yu
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peiwen Zhang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Mengliao Wan
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Cimin Long
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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12
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Nutrition in the prevention and management of sarcopenia - A special focus on Asian Indians. Osteoporos Sarcopenia 2022; 8:135-144. [PMID: 36605171 PMCID: PMC9805983 DOI: 10.1016/j.afos.2022.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/26/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022] Open
Abstract
Sarcopenia, characterized by loss of muscle mass and strength, is common in advanced old age but can be accelerated by chronic disease, malnutrition and physical inactivity. Early initiation of intervention to achieve and maintain a higher peak muscle mass and strength may allow for prevention or delay of sarcopenia and facilitate independent living even in old age. In this context, malnutrition, a significant contributor to sarcopenia, is often overlooked among the Indian population. Maintenance of an optimal energy and protein balance with adequate physical activity level is essential to preserve physical function in the aging population. However, research on the role of micronutrients in muscle maintenance, is still in its infancy. This narrative review, therefore, aims to explore the current status of International and Indian research on the role of nutrition in sarcopenia mitigation and the way forward.
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Chen Z, Chen J, Song C, Sun J, Liu W. Association Between Serum Iron Status and Muscle Mass in Adults: Results From NHANES 2015–2018. Front Nutr 2022; 9:941093. [PMID: 35898717 PMCID: PMC9309789 DOI: 10.3389/fnut.2022.941093] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Abstract
Background Iron deficiency or overload may contribute to complications associated with diseases, but the link between iron status and skeletal muscle disorder is poorly understood. This study aimed to investigate the relationship between serum iron status, reflected by serum ferritin concentration, and muscle mass in U.S. adults. Methods We utilized data from National Health and Nutrition Examination Survey (NHANES) 2015-2018 for analysis. Data on serum ferritin, appendicular skeletal muscle mass (ASM), body mass index (BMI) and confounding factors were extracted and analyzed. Multivariate linear regression analyses and smooth curve fittings were employed to investigate the association between serum ferritin and muscle mass. Subgroup analysis based on iron status, age, gender and race were performed. Results A total of 2,078 participants were included, and divided into iron deficiency (n = 225), normal iron status (n = 1,366), and iron overload (n = 487) groups. Participants with iron overload had significantly lower ASM and appendicular skeletal muscle index (ASMI) (ASM: 19.329 ± 4.879, ASMI: 0.709 ± 0.138) compared to those with iron deficiency (ASM: 22.660 ± 6.789, ASMI: 0.803 ± 0.206) and normal iron status (ASM: 22.235 ± 6.167, ASMI: 0.807 ± 0.201). The serum ferritin was negatively linked with muscle mass after adjusting for potential confounders (β = −0.0001, 95% CI: −0.0001, −0.0000). When stratified by iron status, the trend test between them remained significant (P for trend: 0.008). Furthermore, subgroup analysis identified a stronger association in men (β = −0.0001, 95% CI: −0.0002, −0.0001), age ≥ 40 years (β = −0.0001, 95% CI: −0.0002, −0.0000), non-Hispanic black (β = −0.0002, 95% CI: −0.0003, −0.0001) and other races (β = −0.0002, 95% CI: −0.0003, −0.0000). Conclusions Our study revealed an inverse relationship between serum iron status and muscle mass in adults. This finding improves our understanding of the impact of serum iron status on muscle mass, and sheds new light on the prevention and treatment of muscle loss.
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Affiliation(s)
- Zhi Chen
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jing Chen
- Department of Ophthalmology, Fujian Provincial Hospital, Fuzhou, China
| | - Chenyang Song
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jun Sun
- Department of Emergency, Zhaotong Traditional Chinese Medicine Hospital, Zhaotong, China
| | - Wenge Liu
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- *Correspondence: Wenge Liu
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Murari A, Goparaju NSV, Rhooms SK, Hossain KFB, Liang FG, Garcia CJ, Osei C, Liu T, Li H, Kitsis RN, Patel R, Owusu-Ansah E. IDH2-mediated regulation of the biogenesis of the oxidative phosphorylation system. SCIENCE ADVANCES 2022; 8:eabl8716. [PMID: 35544578 PMCID: PMC9094667 DOI: 10.1126/sciadv.abl8716] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 03/16/2022] [Indexed: 06/04/2023]
Abstract
Several subunits in the matrix domain of mitochondrial complex I (CI) have been posited to be redox sensors for CI, but how elevated levels of reactive oxygen species (ROS) impinge on CI assembly is unknown. We report that genetic disruption of the mitochondrial NADPH-generating enzyme, isocitrate dehydrogenase 2 (IDH2), in Drosophila flight muscles results in elevated ROS levels and impairment of assembly of the oxidative phosphorylation system (OXPHOS). Mechanistically, this begins with an inhibition of biosynthesis of the matrix domain of CI and progresses to involve multiple OXPHOS complexes. Despite activation of multiple compensatory mechanisms, including enhanced coenzyme Q biosynthesis and the mitochondrial unfolded protein response, ferroptotic cell death ensues. Disruption of enzymes that eliminate hydrogen peroxide, but not those that eliminate the superoxide radical, recapitulates the phenotype, thereby implicating hydrogen peroxide as the signaling molecule involved. Thus, IDH2 modulates the assembly of the matrix domain of CI and ultimately that of the entire OXPHOS.
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Affiliation(s)
- Anjaneyulu Murari
- Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Naga S. V. Goparaju
- Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Shauna-Kay Rhooms
- Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Kaniz F. B. Hossain
- Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Felix G. Liang
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Christian J. Garcia
- Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Cindy Osei
- Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Tong Liu
- Center for Advanced Proteomics Research, Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers University—New Jersey Medical School, Newark, NJ 07103, USA
| | - Hong Li
- Center for Advanced Proteomics Research, Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers University—New Jersey Medical School, Newark, NJ 07103, USA
| | - Richard N. Kitsis
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Rajesh Patel
- Department of Pathology and Laboratory Medicine, Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA
| | - Edward Owusu-Ansah
- Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
- The Robert N. Butler Columbia Aging Center, Columbia University Irving Medical Center, New York, NY 10032, USA
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15
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Sha T, Li W, He H, Wu J, Wang Y, Li H. Causal Relationship of Genetically Predicted Serum Micronutrients Levels With Sarcopenia: A Mendelian Randomization Study. Front Nutr 2022; 9:913155. [PMID: 35811987 PMCID: PMC9257254 DOI: 10.3389/fnut.2022.913155] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 05/31/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives Previous observational studies have suggested associations between concentrations of several circulating micronutrients and sarcopenia. However, the causality inferred from those studies was subjected to residual confounding and reverse causation. Therefore, we aimed to examine the causal effects of the levels of genetically predicted serum micronutrients on sarcopenia. Methods Single nucleotide polymorphisms (SNPs) were chosen from large-scale genome-wide association studies of participants only with European descent and were used as genetic instruments for the levels of 10 serum micronutrients (calcium, magnesium, selenium, copper, iron, zinc, Vitamin A, Vitamin B12, Vitamin D, and Vitamin E). Sarcopenia was defined by referencing to the 2019 definition given by the European Working Group on Sarcopenia in Older People (EWGSOP). A two-sample Mendelian randomization (MR) analysis was carried out to examine the associations between the levels of genetically predicted serum micronutrients and the risk of sarcopenia. Then, sensitivity analyses (including weighted median, MR-Egger and leave-one-out sensitivity analyses) were performed to evaluate the robustness of study findings. The estimates were presented as odds ratio (OR) with their 95% confidence intervals (CIs) per one standard deviation (SD) increase in the exposures. Results A total of 378,635 UK Biobank participants, including 572 participants who were identified with sarcopenia, were included in this study. The iron status was shown to have a clear effect on the risk of sarcopenia based on MR analyses. The per one SD increment in the genetically-determined serum iron level corresponded to a 53% increase in the risk of sarcopenia (OR = 1.53, 95% CI: 1.31-1.78, P = 0.001). The exclusion of SNPs of the circulating iron level (i.e., rs1799945 SNP, rs1800562 SNP or rs855791 SNP) did not attenuate the magnitude of the signal in MR analysis. There was little evidence supporting the associations between other remaining micronutrients and sarcopenia. Conclusions An increased risk of sarcopenia was observed with a genetically higher concentration of iron, suggesting that iron may play a role in the occurrence or development of sarcopenia.
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Affiliation(s)
- Tingting Sha
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
| | - Wei Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
| | - Hongyi He
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
| | - Jing Wu
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
| | - Yilun Wang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
| | - Hui Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
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16
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Ding H, Chen S, Pan X, Dai X, Pan G, Li Z, Mai X, Tian Y, Zhang S, Liu B, Cao G, Yao Z, Yao X, Gao L, Yang L, Chen X, Sun J, Chen H, Han M, Yin Y, Xu G, Li H, Wu W, Chen Z, Lin J, Xiang L, Hu J, Lu Y, Zhu X, Xie L. Transferrin receptor 1 ablation in satellite cells impedes skeletal muscle regeneration through activation of ferroptosis. J Cachexia Sarcopenia Muscle 2021; 12:746-768. [PMID: 33955709 PMCID: PMC8200440 DOI: 10.1002/jcsm.12700] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/18/2021] [Accepted: 03/16/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Satellite cells (SCs) are critical to skeletal muscle regeneration. Inactivation of SCs is linked to skeletal muscle loss. Transferrin receptor 1 (Tfr1) is associated with muscular dysfunction as muscle-specific deletion of Tfr1 results in growth retardation, metabolic disorder, and lethality, shedding light on the importance of Tfr1 in muscle physiology. However, its physiological function regarding skeletal muscle ageing and regeneration remains unexplored. METHODS RNA sequencing is applied to skeletal muscles of different ages to identify Tfr1 associated to skeletal muscle ageing. Mice with conditional SC ablation of Tfr1 were generated. Between Tfr1SC/WT and Tfr1SC/KO (n = 6-8 mice per group), cardiotoxin was intramuscularly injected, and transverse abdominal muscle was dissected, weighted, and cryosectioned, followed by immunostaining, haematoxylin and eosin staining, and Masson staining. These phenotypical analyses were followed with functional analysis such as flow cytometry, tread mill, Prussian blue staining, and transmission electron microscopy to identify pathological pathways that contribute to regeneration defects. RESULTS By comparing gene expression between young (2 weeks old, n = 3) and aged (80 weeks old, n = 3) mice among four types of muscles, we identified that Tfr1 expression is declined in muscles of aged mice (~80% reduction, P < 0.005), so as to its protein level in SCs of aged mice. From in vivo and ex vivo experiments, Tfr1 deletion in SCs results in an irreversible depletion of SCs (~60% reduction, P < 0.005) and cell-autonomous defect in SC proliferation and differentiation, leading to skeletal muscle regeneration impairment, followed by labile iron accumulation, lipogenesis, and decreased Gpx4 and Nrf2 protein levels leading to reactive oxygen species scavenger defects. These abnormal phenomena including iron accumulation, activation of unsaturated fatty acid biosynthesis, and lipid peroxidation are orchestrated with the occurrence of ferroptosis in skeletal muscle. Ferroptosis further exacerbates SC proliferation and skeletal muscle regeneration. Ferrostatin-1, a ferroptosis inhibitor, could not rescue ferroptosis. However, intramuscular administration of lentivirus-expressing Tfr1 could partially reduce labile iron accumulation, decrease lipogenesis, and promote skeletal muscle regeneration. Most importantly, declined Tfr1 but increased Slc39a14 protein level on cellular membrane contributes to labile iron accumulation in skeletal muscle of aged rodents (~80 weeks old), leading to activation of ferroptosis in aged skeletal muscle. This is inhibited by ferrostatin-1 to improve running time (P = 0.0257) and distance (P = 0.0248). CONCLUSIONS Satellite cell-specific deletion of Tfr1 impairs skeletal muscle regeneration with activation of ferroptosis. This phenomenon is recapitulated in skeletal muscle of aged rodents and human sarcopenia. Our study provides mechanistic information for developing novel therapeutic strategies against muscular ageing and diseases.
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Affiliation(s)
- Hongrong Ding
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Guangdong Provincial Key Laboratory of Molecular Diagnosis, The Marine Biomedical Research InstituteGuangdong Medical UniversityZhanjiangChina
| | - Shujie Chen
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Xiaohan Pan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Xiaoshuang Dai
- BGI Institute of Applied AgricultureBGI‐ShenzhenShenzhenChina
| | - Guihua Pan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Ze Li
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Xudong Mai
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Ye Tian
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Susu Zhang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Bingdong Liu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Guangchao Cao
- The Biomedical Translational Research Institute, Faculty of Medical ScienceJinan UniversityGuangzhouChina
| | - Zhicheng Yao
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Xiangping Yao
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Liang Gao
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Li Yang
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Xiaoyan Chen
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Jia Sun
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Hong Chen
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Mulan Han
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Yulong Yin
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- China Institute of Subtropical AgricultureChinese Academy of SciencesChangshaHunanChina
| | - Guohuan Xu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Huijun Li
- College of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Weidong Wu
- College of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Zheng Chen
- HIT Center for Life Sciences, School of Life Science and TechnologyHarbin Institute of TechnologyHarbinChina
| | - Jingchao Lin
- Metabo‐Profile Biotechnology (Shanghai) Co. Ltd.ShanghaiChina
| | - Liping Xiang
- Key Laboratory of Metabolism and Molecular Medicine, The Ministry of Education, Department of Endocrinology and MetabolismZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Jun Hu
- Department of OrthopedicsThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina
| | - Yan Lu
- Key Laboratory of Metabolism and Molecular Medicine, The Ministry of Education, Department of Endocrinology and MetabolismZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Xiao Zhu
- Guangdong Provincial Key Laboratory of Molecular Diagnosis, The Marine Biomedical Research InstituteGuangdong Medical UniversityZhanjiangChina
| | - Liwei Xie
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
- College of Public HealthXinxiang Medical UniversityXinxiangChina
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17
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Skeletal Lipocalin-2 Is Associated with Iron-Related Oxidative Stress in ob/ob Mice with Sarcopenia. Antioxidants (Basel) 2021; 10:antiox10050758. [PMID: 34064680 PMCID: PMC8150392 DOI: 10.3390/antiox10050758] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/01/2021] [Accepted: 05/10/2021] [Indexed: 12/03/2022] Open
Abstract
Obesity and insulin resistance accelerate aging-related sarcopenia, which is associated with iron load and oxidative stress. Lipocalin-2 (LCN2) is an iron-binding protein that has been associated with skeletal muscle regeneration, but details regarding its role in obese sarcopenia remain unclear. Here, we report that elevated LCN2 levels in skeletal muscle are linked to muscle atrophy-related inflammation and oxidative stress in leptin-deficient ob/ob mice. RNA sequencing analyses indicated the LCN2 gene expression is enhanced in skeletal muscle of ob/ob mice with sarcopenia. In addition to muscular iron accumulation in ob/ob mice, expressions of iron homeostasis-related divalent metal transporter 1, ferritin, and hepcidin proteins were increased in ob/ob mice compared to lean littermates, whereas expressions of transferrin receptor and ferroportin were reduced. Collectively, these findings demonstrate that LCN2 functions as a potent proinflammatory factor in skeletal muscle in response to obesity-related sarcopenia and is thus a therapeutic candidate target for sarcopenia treatment.
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18
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Alves FM, Kysenius K, Caldow MK, Hardee JP, Crouch PJ, Ayton S, Bush AI, Lynch GS, Koopman R. Iron accumulation in skeletal muscles of old mice is associated with impaired regeneration after ischaemia-reperfusion damage. J Cachexia Sarcopenia Muscle 2021; 12:476-492. [PMID: 33665974 PMCID: PMC8061412 DOI: 10.1002/jcsm.12685] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/08/2020] [Accepted: 01/22/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Oxidative stress is implicated in the insidious loss of muscle mass and strength that occurs with age. However, few studies have investigated the role of iron, which is elevated during ageing, in age-related muscle wasting and blunted repair after injury. We hypothesized that iron accumulation leads to membrane lipid peroxidation, muscle wasting, increased susceptibility to injury, and impaired muscle regeneration. METHODS To examine the role of iron in age-related muscle atrophy, we compared the skeletal muscles of 3-month-old with 22- to 24-month-old 129SvEv FVBM mice. We assessed iron distribution and total elemental iron using laser ablation inductively coupled plasma mass spectrometry and Perls' stain on skeletal muscle cross-sections. In addition, old mice underwent ischaemia-reperfusion (IR) injury (90 min ischaemia), and muscle regeneration was assessed 14 days after injury. Immunoblotting was used to determine lipid peroxidation (4HNE) and iron-related proteins. To determine whether muscle iron content can be altered, old mice were treated with deferiprone (DFP) in the drinking water, and we assessed its effects on muscle regeneration after injury. RESULTS We observed a significant increase in total elemental iron (+43%, P < 0.05) and lipid peroxidation (4HNE: +76%, P < 0.05) in tibialis anterior muscles of old mice. Iron was further increased after injury (adult: +81%, old: +135%, P < 0.05) and associated with increased lipid peroxidation (+41%, P < 0.05). Administration of DFP did not impact iron or measures of lipid peroxidation in skeletal muscle or modulate muscle mass. Increased muscle iron concentration and lipid peroxidation were associated with less efficient regeneration, evident from the smaller fibres in cross-sections of tibialis anterior muscles (-24%, P < 0.05) and an increased percentage of fibres with centralized nuclei (+4124%, P < 0.05) in muscles of old compared with adult mice. Administration of DFP lowered iron after IR injury (PRE: -32%, P < 0.05 and POST: -41%, P < 0.05), but did not translate to structural improvements. CONCLUSIONS Muscles from old mice have increased iron levels, which are associated with increased lipid peroxidation, increased susceptibility to IR injury, and impaired muscle regeneration. Our results suggest that iron is involved in effective muscle regeneration, highlighting the importance of iron homeostasis in muscle atrophy and muscle repair.
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Affiliation(s)
- Francesca M Alves
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Parkville, Victoria, Australia.,Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Kai Kysenius
- Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Victoria, Australia
| | - Marissa K Caldow
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Parkville, Victoria, Australia
| | - Justin P Hardee
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Parkville, Victoria, Australia
| | - Peter J Crouch
- Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Victoria, Australia
| | - Scott Ayton
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Ashley I Bush
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Parkville, Victoria, Australia
| | - René Koopman
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Parkville, Victoria, Australia
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Huang Y, Wu B, Shen D, Chen J, Yu Z, Chen C. Ferroptosis in a sarcopenia model of senescence accelerated mouse prone 8 (SAMP8). Int J Biol Sci 2021; 17:151-162. [PMID: 33390840 PMCID: PMC7757032 DOI: 10.7150/ijbs.53126] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/01/2020] [Indexed: 12/20/2022] Open
Abstract
As a systemic syndrome characterized by age-associated degenerative skeletal muscle atrophy, sarcopenia leads to a risk of adverse outcomes in the elderly. Age-related iron accumulation is found in the muscles of sarcopenia animal models and patients, but the role of iron in sarcopenia remains poorly understood. It has been recently found that iron overload in several diseases is involved in ferroptosis, an iron- dependent form of programmed cell death. However, whether this excess iron can result in ferroptosis in muscles is still unclear. In our present study, we found that ferric citrate induced ferroptosis in C2C12 cells, as well as impaired their differentiation from myoblasts to myotubes. Due to the decreased muscle mass and fiber size, 40-week-old senescence accelerated mouse prone 8 (SAMP8) mice were used as a sarcopenia model, in whose muscles the iron content and markers of ferroptosis were found to increase, compared to 8-week- old SAMP8 controls. Moreover, our results showed that iron overload upregulated the expression of P53, which subsequently repressed the protein level of Slc7a11 (solute carrier family 7, member 11), a known ferroptosis-related gene. The downregulation of Slc7a11 then induced the ferroptosis of muscle cells through the accumulation of lipid peroxidation products, which may be one of the causes of sarcopenia. The findings in this study indicate that iron plays a key role in triggering P53- Slc7a11-mediated ferroptosis in muscles, and suggest that targeting iron accumulation and ferroptosis might be a therapeutic strategy for treating sarcopenia.
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Affiliation(s)
- Yan Huang
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Beiling Wu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Dingzhu Shen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Jiulin Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Zhihua Yu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Chuan Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
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20
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Picca A, Saini SK, Mankowski RT, Kamenov G, Anton SD, Manini TM, Buford TW, Wohlgemuth SE, Xiao R, Calvani R, Coelho-Júnior HJ, Landi F, Bernabei R, Hood DA, Marzetti E, Leeuwenburgh C. Altered Expression of Mitoferrin and Frataxin, Larger Labile Iron Pool and Greater Mitochondrial DNA Damage in the Skeletal Muscle of Older Adults. Cells 2020; 9:E2579. [PMID: 33276460 PMCID: PMC7760001 DOI: 10.3390/cells9122579] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 11/30/2020] [Indexed: 12/16/2022] Open
Abstract
Mitochondrial dysfunction and iron (Fe) dyshomeostasis are invoked among the mechanisms contributing to muscle aging, possibly via a detrimental mitochondrial-iron feed-forward loop. We quantified the labile Fe pool, Fe isotopes, and the expression of mitochondrial Fe handling proteins in muscle biopsies obtained from young and older adults. The expression of key proteins of mitochondrial quality control (MQC) and the abundance of the mitochondrial DNA common deletion (mtDNA4977) were also assessed. An inverse association was found between total Fe and the heavier Fe isotope (56Fe), indicating an increase in labile Fe abundance in cells with greater Fe content. The highest levels of labile Fe were detected in old participants with a Short Physical Performance Battery (SPPB) score ≤ 7 (low-functioning, LF). Protein levels of mitoferrin and frataxin were, respectively, higher and lower in the LF group relative to young participants and older adults with SPPB scores ≥ 11 (high-functioning, HF). The mtDNA4977 relative abundance was greater in old than in young participants, regardless of SPPB category. Higher protein levels of Pink1 were detected in LF participants compared with young and HF groups. Finally, the ratio between lipidated and non-lipidated microtubule-associated protein 1A/1B-light chain 3 (i.e., LC3B II/I), as well as p62 protein expression was lower in old participants regardless of SPPB scores. Our findings indicate that cellular and mitochondrial Fe homeostasis is perturbed in the aged muscle (especially in LF older adults), as reflected by altered levels of mitoferrin and frataxin, which, together with MQC derangements, might contribute to loss of mtDNA stability.
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Affiliation(s)
- Anna Picca
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (A.P.); (R.C.); (F.L.); (R.B.)
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, SE-171 77 Stockholm, Sweden
| | - Sunil K. Saini
- Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL 32611, USA; (S.K.S.); (R.T.M.); (S.D.A.); (T.M.M.); (S.E.W.); (R.X.); (C.L.)
| | - Robert T. Mankowski
- Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL 32611, USA; (S.K.S.); (R.T.M.); (S.D.A.); (T.M.M.); (S.E.W.); (R.X.); (C.L.)
| | - George Kamenov
- Department of Geological Sciences, University of Florida, Gainesville, FL 32605, USA;
| | - Stephen D. Anton
- Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL 32611, USA; (S.K.S.); (R.T.M.); (S.D.A.); (T.M.M.); (S.E.W.); (R.X.); (C.L.)
| | - Todd M. Manini
- Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL 32611, USA; (S.K.S.); (R.T.M.); (S.D.A.); (T.M.M.); (S.E.W.); (R.X.); (C.L.)
| | - Thomas W. Buford
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35205, USA;
| | - Stephanie E. Wohlgemuth
- Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL 32611, USA; (S.K.S.); (R.T.M.); (S.D.A.); (T.M.M.); (S.E.W.); (R.X.); (C.L.)
| | - Rui Xiao
- Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL 32611, USA; (S.K.S.); (R.T.M.); (S.D.A.); (T.M.M.); (S.E.W.); (R.X.); (C.L.)
| | - Riccardo Calvani
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (A.P.); (R.C.); (F.L.); (R.B.)
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, SE-171 77 Stockholm, Sweden
| | - Hélio José Coelho-Júnior
- Institute of Internal Medicine and Geriatrics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Francesco Landi
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (A.P.); (R.C.); (F.L.); (R.B.)
- Institute of Internal Medicine and Geriatrics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Roberto Bernabei
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (A.P.); (R.C.); (F.L.); (R.B.)
- Institute of Internal Medicine and Geriatrics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - David A. Hood
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada;
| | - Emanuele Marzetti
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (A.P.); (R.C.); (F.L.); (R.B.)
- Institute of Internal Medicine and Geriatrics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Christiaan Leeuwenburgh
- Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL 32611, USA; (S.K.S.); (R.T.M.); (S.D.A.); (T.M.M.); (S.E.W.); (R.X.); (C.L.)
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21
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Xie WQ, Xiao WF, Tang K, Wu YX, Hu PW, Li YS, Duan Y, Lv S. Caloric restriction: implications for sarcopenia and potential mechanisms. Aging (Albany NY) 2020; 12:24441-24452. [PMID: 33226962 PMCID: PMC7762489 DOI: 10.18632/aging.103987] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/14/2020] [Indexed: 12/23/2022]
Abstract
Sarcopenia is a potential risk factor for weakness, disability and death in elderly individuals. Therefore, seeking effective methods to delay and treat sarcopenia and to improve the quality of life of elderly individuals is a trending topic in geriatrics. Caloric restriction (CR) is currently recognized as an effective means to extend the lifespan and delay the decline in organ function caused by aging. In this review, we describe the effects of CR on improving muscle protein synthesis, delaying muscle atrophy, regulating muscle mitochondrial function, maintaining muscle strength, promoting muscle stem cell (MuSC) regeneration and differentiation, and thus protecting against sarcopenia. We also summarize the possible cellular mechanisms by which CR delays sarcopenia. CR can delay sarcopenia by reducing the generation of oxygen free radicals, reducing oxidative stress damage, enhancing mitochondrial function, improving protein homeostasis, reducing iron overload, increasing autophagy and apoptosis, and reducing inflammation. However, the relationships between CR and genetics, sex, animal strain, regimen duration and energy intake level are complex. Therefore, further study of the proper timing and application method of CR to prevent sarcopenia is highly important for the aging population.
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Affiliation(s)
- Wen-Qing Xie
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Wen-Feng Xiao
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Kun Tang
- Discipline Construction Office, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yu-Xiang Wu
- School of Kinesiology, Jianghan University, Wuhan 430056, China
| | - Pei-Wu Hu
- Department of Scientific Research, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yu-Sheng Li
- Deparment of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yu Duan
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Shan Lv
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China
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22
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Zhou D, Zhang Y, Mamtawla G, Wan S, Gao X, Zhang L, Li G, Wang X. Iron overload is related to muscle wasting in patients with cachexia of gastric cancer: using quantitative proteome analysis. Med Oncol 2020; 37:113. [PMID: 33196891 DOI: 10.1007/s12032-020-01439-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 10/30/2020] [Indexed: 11/24/2022]
Abstract
The incidence of gastric cancer cachexia is high and the clinical management is poor, so the study aimed to clarify the mechanism of muscle wasting to better screen patients with gastric cancer cachexia. Gastric cancer patients undergoing radical gastrectomy were divided into cachexia with sarcopenia (CS, n = 13) and normal (N, n = 10) two groups. The possible mechanism of skeletal muscle reduction was explored through Tandem Mass Tag (TMT) technique, Perls staining, Western blot analysis and measurement of oxidative stress indicators. The preoperative weight, weight loss, body mass index, calorie intake and skeletal muscle index values of the CS group were significantly lower than those of the N group (P < 0.05). We identified 114 differentially expressed proteins (DEP) in the muscles of two groups using TMT analysis. Bioinformatics analysis of DEP revealed that ferritin, iron and oxidative stress may be related to skeletal muscle consumption. Following Perls staining and measurement iron concentration in skeletal muscles, we found that the iron in the muscles of the CS group was significantly increased, and at the same time, western blot analysis showed that the expression of ferritin in the CS group was significantly increased and regulated by hepcidin-ferroportin axis. Finally, the CS group showed increased oxidative stress and weakened antioxidant stress systems in the muscles compared with the N group when oxidative stress indicators were analyzed. In conclusion, iron overload may be related to muscle loss in patients with gastric cancer cachexia. Gastric cancer patients with elevated ferritin are more likely to have muscle wasting.
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Affiliation(s)
- Da Zhou
- Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Ying Zhang
- Department of Cardiothoracic Surgery, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Gulsudum Mamtawla
- Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Songlin Wan
- Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Xuejin Gao
- Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Li Zhang
- Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China
| | - Guoli Li
- Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China.
| | - Xinying Wang
- Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, People's Republic of China.
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23
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Drosophila melanogaster Mitochondrial Carriers: Similarities and Differences with the Human Carriers. Int J Mol Sci 2020; 21:ijms21176052. [PMID: 32842667 PMCID: PMC7504413 DOI: 10.3390/ijms21176052] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/19/2020] [Accepted: 08/19/2020] [Indexed: 12/15/2022] Open
Abstract
Mitochondrial carriers are a family of structurally related proteins responsible for the exchange of metabolites, cofactors and nucleotides between the cytoplasm and mitochondrial matrix. The in silico analysis of the Drosophila melanogaster genome has highlighted the presence of 48 genes encoding putative mitochondrial carriers, but only 20 have been functionally characterized. Despite most Drosophila mitochondrial carrier genes having human homologs and sharing with them 50% or higher sequence identity, D. melanogaster genes display peculiar differences from their human counterparts: (1) in the fruit fly, many genes encode more transcript isoforms or are duplicated, resulting in the presence of numerous subfamilies in the genome; (2) the expression of the energy-producing genes in D. melanogaster is coordinated from a motif known as Nuclear Respiratory Gene (NRG), a palindromic 8-bp sequence; (3) fruit-fly duplicated genes encoding mitochondrial carriers show a testis-biased expression pattern, probably in order to keep a duplicate copy in the genome. Here, we review the main features, biological activities and role in the metabolism of the D. melanogaster mitochondrial carriers characterized to date, highlighting similarities and differences with their human counterparts. Such knowledge is very important for obtaining an integrated view of mitochondrial function in D. melanogaster metabolism.
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24
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Advanced Age Is Associated with Iron Dyshomeostasis and Mitochondrial DNA Damage in Human Skeletal Muscle. Cells 2019; 8:cells8121525. [PMID: 31783583 PMCID: PMC6953082 DOI: 10.3390/cells8121525] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/22/2019] [Accepted: 11/25/2019] [Indexed: 12/14/2022] Open
Abstract
Whether disruption of iron metabolism is implicated in human muscle aging is presently unclear. We explored the relationship among iron metabolism, muscle mitochondrial homeostasis, inflammation, and physical function in older adults and young controls. Eleven young and 23 older men and women were included. Older adults were classified into high-functioning (HF) and low-functioning (LF) groups according to their Short Physical Performance Battery score. Vastus lateralis muscle biopsies were assayed for total iron content, expression of 8-oxoguanine and DNA glycosylase (OGG1), 3-nitrotyrosine (3-NT) levels, and mitochondrial DNA (mtDNA) content and damage. Circulating ferritin and hepcidin levels were also quantified. Muscle iron levels were greater in the old group. Protein expression of transferrin receptor 1, Zrt-Irt-like protein (ZIP) 8, and ZIP14 were lower in old participants. Circulating levels of ferritin, hepcidin, interleukin 6 (IL6), and C-reactive protein were higher in the old group. Old participants showed lower mtDNA content and greater mtDNA damage. OGG1 protein expression declined with age, whereas 3-NT levels were greater in old participants. Finally, a negative correlation was determined between ZIP14 expression and circulating IL6 levels in LF older adults. None of assayed parameters differed between HF and LF participants. Our findings suggest that muscle iron homeostasis is altered in old age, which might contribute to loss of mtDNA stability. Muscle iron metabolism may therefore represent a target for interventions against muscle aging.
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25
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Grönholdt‐Klein M, Altun M, Becklén M, Dickman Kahm E, Fahlström A, Rullman E, Ulfhake B. Muscle atrophy and regeneration associated with behavioural loss and recovery of function after sciatic nerve crush. Acta Physiol (Oxf) 2019; 227:e13335. [PMID: 31199566 DOI: 10.1111/apha.13335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 05/31/2019] [Accepted: 06/11/2019] [Indexed: 12/22/2022]
Abstract
AIM To resolve timing and coordination of denervation atrophy and the re-innervation recovery process to discern correlations indicative of common programs governing these processes. METHODS Female Sprague-Dawley (SD) rats had a unilateral sciatic nerve crush. Based on longitudinal behavioural observations, the triceps surae muscle was analysed at different time points post-lesion. RESULTS Crush results in a loss of muscle function and mass (-30%) followed by a recovery to almost pre-lesion status at 30 days post-crush (dpc). There was no loss of fibres nor any significant change in the number of nuclei per fibre but a shift in fibres expressing myosins I and II that reverted back to control levels at 30 dpc. A residual was the persistence of hybrid fibres. Early on a CHNR -ε to -γ switch and a re-expression of embryonic MyHC showed as signs of denervation. Foxo1, Smad3, Fbxo32 and Trim63 transcripts were upregulated but not Myostatin, InhibinA and ActivinR2B. Combined this suggests that the mechanism instigating atrophy provides a selectivity of pathway(s) activated. The myogenic differentiation factors (MDFs: Myog, Myod1 and Myf6) were upregulated early on suggesting a role also in the initial atrophy. The regulation of these transcripts returned towards baseline at 30 dpc. The examined genes showed a strong baseline covariance in transcript levels which dissolved in the response to crush driven mainly by the MDFs. At 30 dpc the naïve expression pattern was re-established. CONCLUSION Peripheral nerve crush offers an excellent model to assess and interfere with muscle adaptions to denervation and re-innervation.
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Affiliation(s)
| | - Mikael Altun
- Department of Laboratory Medicine Karolinska Institutet Huddinge Sweden
| | - Meneca Becklén
- Department of Neuroscience Karolinska Institutet Stockholm Sweden
| | | | - Andreas Fahlström
- Department of Neuroscience Karolinska Institutet Stockholm Sweden
- Department of Neuroscience, Neurosurgery Uppsala University Uppsala Sweden
| | - Eric Rullman
- Department of Laboratory Medicine Karolinska Institutet Huddinge Sweden
| | - Brun Ulfhake
- Department of Neuroscience Karolinska Institutet Stockholm Sweden
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26
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Ikeda Y, Satoh A, Horinouchi Y, Hamano H, Watanabe H, Imao M, Imanishi M, Zamami Y, Takechi K, Izawa‐Ishizawa Y, Miyamoto L, Hirayama T, Nagasawa H, Ishizawa K, Aihara K, Tsuchiya K, Tamaki T. Iron accumulation causes impaired myogenesis correlated with MAPK signaling pathway inhibition by oxidative stress. FASEB J 2019; 33:9551-9564. [DOI: 10.1096/fj.201802724rr] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yasumasa Ikeda
- Department of Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Akiho Satoh
- Department of Medical Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Yuya Horinouchi
- Department of Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Hirofumi Hamano
- Department of Pharmacy Tokushima University Hospital Tokushima Japan
| | - Hiroaki Watanabe
- Department of Clinical Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Mizuki Imao
- Department of Medical Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Masaki Imanishi
- Department of Pharmacy Tokushima University Hospital Tokushima Japan
| | - Yoshito Zamami
- Department of Clinical Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
- Department of Pharmacy Tokushima University Hospital Tokushima Japan
| | - Kenshi Takechi
- Clinical Trial Center for Developmental Therapeutics Tokushima University Hospital Tokushima Japan
| | - Yuki Izawa‐Ishizawa
- Department of Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Licht Miyamoto
- Department of Medical Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Tasuku Hirayama
- Laboratory of Pharmaceutical and Medicinal Chemistry Gifu Pharmaceutical University Gifu Japan
| | - Hideko Nagasawa
- Laboratory of Pharmaceutical and Medicinal Chemistry Gifu Pharmaceutical University Gifu Japan
| | - Keisuke Ishizawa
- Department of Clinical Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
- Department of Pharmacy Tokushima University Hospital Tokushima Japan
| | - Ken‐Ichi Aihara
- Department of Community Medicine for Diabetes and Metabolic Disorders Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Koichiro Tsuchiya
- Department of Medical Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
| | - Toshiaki Tamaki
- Department of Pharmacology Institute of Biomedical Sciences Graduate School Tokushima University Tokushima Japan
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27
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Liang C, Mickey MC, Receno CN, Atalay M, DeRuisseau KC. Functional and biochemical responses of skeletal muscle following a moderate degree of systemic iron loading in mice. J Appl Physiol (1985) 2019; 126:799-809. [PMID: 30653415 DOI: 10.1152/japplphysiol.00237.2018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Excessive iron loading may cause skeletal muscle atrophy and weakness because of its free radical generating properties. To determine whether a clinically relevant degree of iron loading impairs skeletal muscle function, young male mice received injections of iron dextran (4 mg iron/200 µl) or 2 mM d-glucose (control) 5 days/week for 2 weeks ( n = 10/group). Systemic iron loading induced an approximate fourfold increase in the skeletal muscle nonheme iron concentration. Soleus specific tension (1, 30-250 Hz) was lower among iron-loaded animals compared with controls despite similar body mass and muscle mass. Soleus lipid peroxidation (4-hydroxynonenal adducts) and protein oxidation (protein carbonyls) levels were similar between groups. In gastrocnemius muscle, reduced glutathione (GSH) and glutathione peroxidase activity were similar but glutathione disulfide (GSSG) and the GSSG/GSH ratio were greater in iron-loaded muscle. A greater protein expression level of endogenous thiol antioxidant thioredoxin (TRX) was observed among iron-loaded muscle whereas its endogenous inhibitor thioredoxin-interacting protein (TXNip) and the TRX/TXNip ratio were similar. Glutaredoxin2, a thiol-disulfide oxidoreductase activated by GSSG-induced destabilization of its iron-sulfur [2Fe-2S] cluster, was lower following iron loading. Additionally, protein levels of α-actinin and αII-spectrin at 240 kDa were lower in the iron-loaded group. Ryanodine receptor stabilizing subunit calstabin1 was also lower following iron loading. In summary, the contractile dysfunction that resulted from moderate iron loading may be mediated by a disturbance in the muscle redox balance and from changes arising from an increased proteolytic response and aberrant sarcoplasmic reticulum Ca2+ release. NEW & NOTEWORTHY Although severe iron loading is known to cause muscle oxidative stress and dysfunction, the effects of a moderate degree of systemic iron loading on muscle contractile function and biochemical responses remain unclear. This study demonstrates that a pathophysiological elevation in the skeletal muscle iron load leads to force deficits that coincide with impaired redox status, structural integrity, and lower ryanodine receptor-associated calstabin1 in the absence of muscle mass changes or oxidative damage.
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Affiliation(s)
- Chen Liang
- Department of Exercise Science, Syracuse University , Syracuse, New York
| | - Marisa C Mickey
- Department of Exercise Science, Syracuse University , Syracuse, New York
| | - Candace N Receno
- Department of Exercise Science, Syracuse University , Syracuse, New York
| | - Mustafa Atalay
- Institute of Biomedicine, Physiology, University of Eastern Finland , Kuopio , Finland
| | - Keith C DeRuisseau
- Department of Exercise Science, Syracuse University , Syracuse, New York
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28
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Zhao G. Is Iron Accumulation a Possible Risk Factor for Sarcopenia? Biol Trace Elem Res 2018; 186:379-383. [PMID: 29623651 DOI: 10.1007/s12011-018-1332-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 03/27/2018] [Indexed: 01/08/2023]
Abstract
Sarcopenia has a high incidence among the elderly, with significant negative effects on the quality of life. The pathogenesis of sarcopenia is complex, and many factors are involved in its development and progression. Sarcopenia might be associated with iron accumulation given that (1) age-related iron accumulation was found in the skeletal muscle, (2) excess iron could cause skeletal muscle damage or atrophy, and (3) patients with sarcopenia showed higher levels of serum ferritin. Understanding the etiology and pathogenesis of sarcopenia would help to develop new treatment and preventive methods, thereby improving the quality of life of the elderly patients.
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Affiliation(s)
- Guoyang Zhao
- Department of Orthopaedics, The Affiliated Hospital of Jiangsu University, Zhenjiang, 212000, China.
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Yang J, Zhang G, Dong D, Shang P. Effects of Iron Overload and Oxidative Damage on the Musculoskeletal System in the Space Environment: Data from Spaceflights and Ground-Based Simulation Models. Int J Mol Sci 2018; 19:E2608. [PMID: 30177626 PMCID: PMC6163331 DOI: 10.3390/ijms19092608] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/29/2018] [Accepted: 09/01/2018] [Indexed: 12/15/2022] Open
Abstract
The space environment chiefly includes microgravity and radiation, which seriously threatens the health of astronauts. Bone loss and muscle atrophy are the two most significant changes in mammals after long-term residency in space. In this review, we summarized current understanding of the effects of microgravity and radiation on the musculoskeletal system and discussed the corresponding mechanisms that are related to iron overload and oxidative damage. Furthermore, we enumerated some countermeasures that have a therapeutic potential for bone loss and muscle atrophy through using iron chelators and antioxidants. Future studies for better understanding the mechanism of iron and redox homeostasis imbalance induced by the space environment and developing the countermeasures against iron overload and oxidative damage consequently may facilitate human to travel more safely in space.
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Affiliation(s)
- Jiancheng Yang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Gejing Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Dandan Dong
- School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Peng Shang
- Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an 710072, China.
- Research & Development Institute in Shenzhen, Northwestern Polytechnical University, Shenzhen 518057, China.
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Ábrigo J, Elorza AA, Riedel CA, Vilos C, Simon F, Cabrera D, Estrada L, Cabello-Verrugio C. Role of Oxidative Stress as Key Regulator of Muscle Wasting during Cachexia. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2063179. [PMID: 29785242 PMCID: PMC5896211 DOI: 10.1155/2018/2063179] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 02/07/2018] [Indexed: 12/11/2022]
Abstract
Skeletal muscle atrophy is a pathological condition mainly characterized by a loss of muscular mass and the contractile capacity of the skeletal muscle as a consequence of muscular weakness and decreased force generation. Cachexia is defined as a pathological condition secondary to illness characterized by the progressive loss of muscle mass with or without loss of fat mass and with concomitant diminution of muscle strength. The molecular mechanisms involved in cachexia include oxidative stress, protein synthesis/degradation imbalance, autophagy deregulation, increased myonuclear apoptosis, and mitochondrial dysfunction. Oxidative stress is one of the most common mechanisms of cachexia caused by different factors. It results in increased ROS levels, increased oxidation-dependent protein modification, and decreased antioxidant system functions. In this review, we will describe the importance of oxidative stress in skeletal muscles, its sources, and how it can regulate protein synthesis/degradation imbalance, autophagy deregulation, increased myonuclear apoptosis, and mitochondrial dysfunction involved in cachexia.
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Affiliation(s)
- Johanna Ábrigo
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
| | - Alvaro A. Elorza
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
- 3Centro de Investigaciones Biomédicas, Facultad de Ciencias Biológicas & Facultad de Medicina, Universidad Andres Bello, Santiago, Chile
| | - Claudia A. Riedel
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
| | - Cristian Vilos
- 4Laboratory of Nanomedicine and Targeted Delivery, Center for Integrative Medicine and Innovative Science, Faculty of Medicine, and Center for Bioinformatics and Integrative Biology, Faculty of Biological Sciences, Universidad Andres Bello, Santiago, Chile
- 5Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe Simon
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
| | - Daniel Cabrera
- 6Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- 7Departamento de Ciencias Químicas y Biológicas, Facultad de Salud, Universidad Bernardo O'Higgins, Santiago, Chile
| | - Lisbell Estrada
- 8Centro Integrativo de Biología y Química Aplicada, Universidad Bernardo O'Higgins, Santiago, Chile
| | - Claudio Cabello-Verrugio
- 1Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
- 2Millennium Institute of Immunology and Immunotherapy, Santiago, Chile
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Kim Y, Men SS, Liang C, Receno CN, Brutsaert TD, Korol DL, Heffernan KS, DeRuisseau KC. Effects of long-term exposures to low iron and branched-chain amino acid containing diets on aging skeletal muscle of Fisher 344 × Brown Norway rats. Appl Physiol Nutr Metab 2017; 43:165-173. [PMID: 29024598 DOI: 10.1139/apnm-2017-0272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Aging skeletal muscle displays an altered iron status that may promote oxidative stress and sarcopenia. A diet containing low iron (LI) could reduce muscle iron status and attenuate age-related muscle atrophy. Supplemental branched-chain amino acids (BCAA) may also alleviate sarcopenia by promoting muscle protein synthesis and iron status improvement. This study examined individual and combined effects of LI and BCAA diets on anabolic signaling and iron status in skeletal muscle of aging rats. Twenty-nine-month-old male Fisher 344 × Brown Norway rats consumed the following control-base diets: control + regular iron (35 mg iron/kg) (CR; n = 11); control + LI (∼6 mg iron/kg) (CL; n = 11); 2×BCAA + regular iron (BR; n = 10); and 2×BCAA + LI (BL; n = 12) for 12 weeks. Although LI and/or 2×BCAA did not affect plantaris muscle mass, 2×BCAA groups showed lower muscle iron content than did CR and CL groups (P < 0.05). p70 ribosomal protein S6 kinase phosphorylation was greater in 2×BCAA and LI animals compared with CR animals (P < 0.05). Interactions between IRON and BCAA were observed for proteins indicative of mitochondrial biogenesis (peroxisome proliferator-activated receptor gamma coactivator 1 alpha) and oxidative capacity (cytochrome c oxidase subunit 2 and citrate synthase) (P < 0.05) wherein the combined diet (BL) negated potential benefits of individual diets. Antioxidant capacity, superoxide dismutase activity, and oxidative injury (3-nitrotyrosine, protein carbonyls, and 4-hydroxynonenal) were similar between groups. In conclusion, 12 weeks of LI and 2×BCAA diets showed significant impacts on increasing anabolic signaling as well as ameliorating iron status; however, these interventions did not affect muscle mass.
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Affiliation(s)
- Yuho Kim
- a Department of Exercise Science, Syracuse University, 820 Comstock Ave, Room 201 WB, Syracuse, NY 13244, USA.,b Muscle Energetics Laboratory, National Heart, Lung, and Blood Institute, 10 Center Drive Room B1D400, Bethesda, MD 20892, USA
| | - Sok Sambo Men
- c Department of Nutrition Science, Syracuse University, 426 Ostrom Avenue, Syracuse, NY 13244, USA
| | - Chen Liang
- d Department of Exercise Science, Syracuse University, 820 Comstock Ave., Room 201 WB, Syracuse, NY 13244, USA
| | - Candace N Receno
- d Department of Exercise Science, Syracuse University, 820 Comstock Ave., Room 201 WB, Syracuse, NY 13244, USA
| | - Tom D Brutsaert
- d Department of Exercise Science, Syracuse University, 820 Comstock Ave., Room 201 WB, Syracuse, NY 13244, USA
| | - Donna L Korol
- e Department of Biology, Syracuse University, 107 College Place, Syracuse, NY 13244, USA
| | - Kevin S Heffernan
- d Department of Exercise Science, Syracuse University, 820 Comstock Ave., Room 201 WB, Syracuse, NY 13244, USA
| | - Keith C DeRuisseau
- d Department of Exercise Science, Syracuse University, 820 Comstock Ave., Room 201 WB, Syracuse, NY 13244, USA
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Ingram T, Chakrabarti L. Proteomic profiling of mitochondria: what does it tell us about the ageing brain? Aging (Albany NY) 2016; 8:3161-3179. [PMID: 27992860 PMCID: PMC5270661 DOI: 10.18632/aging.101131] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 12/01/2016] [Indexed: 02/07/2023]
Abstract
Mitochondrial dysfunction is evident in numerous neurodegenerative and age-related disorders. It has also been linked to cellular ageing, however our current understanding of the mitochondrial changes that occur are unclear. Functional studies have made some progress reporting reduced respiration, dynamic structural modifications and loss of membrane potential, though there are conflicts within these findings. Proteomic analyses, together with functional studies, are required in order to profile the mitochondrial changes that occur with age and can contribute to unravelling the complexity of the ageing phenotype. The emergence of improved protein separation techniques, combined with mass spectrometry analyses has allowed the identification of age and cell-type specific mitochondrial changes in energy metabolism, antioxidants, fusion and fission machinery, chaperones, membrane proteins and biosynthesis pathways. Here, we identify and review recent data from the analyses of mitochondria from rodent brains. It is expected that knowledge gained from understanding age-related mitochondrial changes of the brain should lead to improved biomarkers of normal ageing and also age-related disease progression.
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Affiliation(s)
- Thomas Ingram
- SVMS, Faculty of Medicine, University of Nottingham, Sutton Bonington, LE12 5RD, UK
| | - Lisa Chakrabarti
- SVMS, Faculty of Medicine, University of Nottingham, Sutton Bonington, LE12 5RD, UK
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Reactive oxygen species and calcium signals in skeletal muscle: A crosstalk involved in both normal signaling and disease. Cell Calcium 2016; 60:172-9. [DOI: 10.1016/j.ceca.2016.02.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 02/16/2016] [Accepted: 02/17/2016] [Indexed: 01/06/2023]
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Shawn, the Drosophila Homolog of SLC25A39/40, Is a Mitochondrial Carrier That Promotes Neuronal Survival. J Neurosci 2016; 36:1914-29. [PMID: 26865615 DOI: 10.1523/jneurosci.3432-15.2016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
UNLABELLED Mitochondria play an important role in the regulation of neurotransmission, and mitochondrial impairment is a key event in neurodegeneration. Cells rely on mitochondrial carrier proteins of the SLC25 family to shuttle ions, cofactors, and metabolites necessary for enzymatic reactions. Mutations in these carriers often result in rare but severe pathologies in the brain, and some of the genes, including SLC25A39 and SLC25A40, reside in susceptibility loci of severe forms of epilepsy. However, the role of most of these carriers has not been investigated in neurons in vivo. We identified shawn, the Drosophila homolog of SLC25A39 and SLC25A40, in a genetic screen to identify genes involved in neuronal function. Shawn localizes to mitochondria, and missense mutations result in an accumulation of reactive oxygen species, mitochondrial dysfunction, and neurodegeneration. Shawn regulates metal homeostasis, and we found in shawn mutants increased levels of manganese, calcium, and mitochondrial free iron. Mitochondrial mutants often cannot maintain synaptic transmission under demanding conditions, but shawn mutants do, and they also do not display endocytic defects. In contrast, shawn mutants harbor a significant increase in neurotransmitter release. Our work provides the first functional annotation of these essential mitochondrial carriers in the nervous system, and the results suggest that metal imbalances and mitochondrial dysfunction may contribute to defects in synaptic transmission and neuronal survival. SIGNIFICANCE STATEMENT We describe for the first time the role of the mitochondrial carrier Shawn/SLC25A39/SLC25A40 in the nervous system. In humans, these genes reside in susceptibility loci for epilepsy, and, in flies, we observe neuronal defects related to mitochondrial dysfunction and metal homeostasis defects. Interestingly, shawn mutants also harbor increased neurotransmitter release and neurodegeneration. Our data suggest a connection between maintaining a correct metal balance and mitochondrial function to regulate neuronal survival and neurotransmitter release.
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Ikeda Y, Imao M, Satoh A, Watanabe H, Hamano H, Horinouchi Y, Izawa-Ishizawa Y, Kihira Y, Miyamoto L, Ishizawa K, Tsuchiya K, Tamaki T. Iron-induced skeletal muscle atrophy involves an Akt-forkhead box O3-E3 ubiquitin ligase-dependent pathway. J Trace Elem Med Biol 2016; 35:66-76. [PMID: 27049128 DOI: 10.1016/j.jtemb.2016.01.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/02/2016] [Accepted: 01/22/2016] [Indexed: 12/21/2022]
Abstract
Skeletal muscle wasting or sarcopenia is a critical health problem. Skeletal muscle atrophy is induced by an excess of iron, which is an essential trace metal for all living organisms. Excessive amounts of iron catalyze the formation of highly toxic hydroxyl radicals via the Fenton reaction. However, the molecular mechanism of iron-induced skeletal muscle atrophy has remained unclear. In this study, 8-weeks-old C57BL6/J mice were divided into 2 groups: vehicle-treated group and the iron-injected group (10 mg iron day(-1)mouse(-1)) during 2 weeks. Mice in the iron-injected group showed an increase in the iron content of the skeletal muscle and serum and ferritin levels in the muscle, along with reduced skeletal muscle mass. The skeletal muscle showed elevated mRNA expression of the muscle atrophy-related E3 ubiquitin ligases, atrogin-1 and muscle ring finger-1(MuRF1), on days 7 and 14 of iron treatment. Moreover, iron-treated mice showed reduced phosphorylation of Akt and forkhead box O3 (FOXO3a) in skeletal muscles. Inhibition of FOXO3a using siRNA in vitro in C2C12 myotube cells inhibited iron-induced upregulation of atrogin-1 and MuRF1 and reversed the reduction in myotube diameters. Iron-load caused oxidative stress, and an oxidative stress inhibitor abrogated iron-induced muscle atrophy by reactivating the Akt-FOXO3a pathway. Iron-induced skeletal muscle atrophy is suggested to involve the E3 ubiquitin ligase mediated by the reduction of Akt-FOXO3a signaling by oxidative stress.
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Affiliation(s)
- Yasumasa Ikeda
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
| | - Mizuki Imao
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akiho Satoh
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroaki Watanabe
- Department of Clinical Pharmacy, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hirofumi Hamano
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan; Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
| | - Yuya Horinouchi
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan; Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
| | - Yuki Izawa-Ishizawa
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yoshitaka Kihira
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Licht Miyamoto
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Keisuke Ishizawa
- Department of Clinical Pharmacy, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan; Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
| | - Koichiro Tsuchiya
- Department of Medical Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Toshiaki Tamaki
- Department of Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Carter HN, Chen CCW, Hood DA. Mitochondria, muscle health, and exercise with advancing age. Physiology (Bethesda) 2016; 30:208-23. [PMID: 25933821 DOI: 10.1152/physiol.00039.2014] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Skeletal muscle health is dependent on the optimal function of its mitochondria. With advancing age, decrements in numerous mitochondrial variables are evident in muscle. Part of this decline is due to reduced physical activity, whereas the remainder appears to be attributed to age-related alterations in mitochondrial synthesis and degradation. Exercise is an important strategy to stimulate mitochondrial adaptations in older individuals to foster improvements in muscle function and quality of life.
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Affiliation(s)
- Heather N Carter
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
| | - Chris C W Chen
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
| | - David A Hood
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
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37
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Apoptosis or autophagy, that is the question: Two ways for muscle sacrifice towards meat. Trends Food Sci Technol 2015. [DOI: 10.1016/j.tifs.2015.10.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Gueugneau M, Coudy-Gandilhon C, Gourbeyre O, Chambon C, Combaret L, Polge C, Taillandier D, Attaix D, Friguet B, Maier AB, Butler-Browne G, Béchet D. Proteomics of muscle chronological ageing in post-menopausal women. BMC Genomics 2014; 15:1165. [PMID: 25532418 PMCID: PMC4523020 DOI: 10.1186/1471-2164-15-1165] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 12/16/2014] [Indexed: 12/18/2022] Open
Abstract
Background Muscle ageing contributes to both loss of functional autonomy and increased morbidity. Muscle atrophy accelerates after 50 years of age, but the mechanisms involved are complex and likely result from the alteration of a variety of interrelated functions. In order to better understand the molecular mechanisms underlying muscle chronological ageing in human, we have undertaken a top-down differential proteomic approach to identify novel biomarkers after the fifth decade of age. Results Muscle samples were compared between adult (56 years) and old (78 years) post-menopausal women. In addition to total muscle extracts, low-ionic strength extracts were investigated to remove high abundance myofibrillar proteins and improve the detection of low abundance proteins. Two-dimensional gel electrophoreses with overlapping IPGs were used to improve the separation of muscle proteins. Overall, 1919 protein spots were matched between all individuals, 95 were differentially expressed and identified by mass spectrometry, and they corresponded to 67 different proteins. Our results suggested important modifications in cytosolic, mitochondrial and lipid energy metabolism, which may relate to dysfunctions in old muscle force generation. A fraction of the differentially expressed proteins were linked to the sarcomere and cytoskeleton (myosin light-chains, troponin T, ankyrin repeat domain-containing protein-2, vinculin, four and a half LIM domain protein-3), which may account for alterations in contractile properties. In line with muscle contraction, we also identified proteins related to calcium signal transduction (calsequestrin-1, sarcalumenin, myozenin-1, annexins). Muscle ageing was further characterized by the differential regulation of several proteins implicated in cytoprotection (catalase, peroxiredoxins), ion homeostasis (carbonic anhydrases, selenium-binding protein 1) and detoxification (aldo-keto reductases, aldehyde dehydrogenases). Notably, many of the differentially expressed proteins were central for proteostasis, including heat shock proteins and proteins involved in proteolysis (valosin-containing protein, proteasome subunit beta type-4, mitochondrial elongation factor-Tu). Conclusions This study describes the most extensive proteomic analysis of muscle ageing in humans, and identified 34 new potential biomarkers. None of them were previously recognized as differentially expressed in old muscles, and each may represent a novel starting point to elucidate the mechanisms of muscle chronological ageing in humans.
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Affiliation(s)
- Marine Gueugneau
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France. .,Pôle Endocrinologie, Diabétologie et Nutrition, Institut de Recherches Expérimentales et Cliniques, Université Catholique de Louvain, B-1200, Brussels, Belgium.
| | - Cécile Coudy-Gandilhon
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France.
| | - Ophélie Gourbeyre
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France.
| | - Christophe Chambon
- INRA, Plateforme d'Exploration du Métabolisme, Composante Protéique, F-63122, Saint Genès Champanelle, France.
| | - Lydie Combaret
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France.
| | - Cécile Polge
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France.
| | - Daniel Taillandier
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France.
| | - Didier Attaix
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France.
| | - Bertrand Friguet
- UPMC Université Paris 06, UMR 8256, Biological Adaptation and Ageing - IBPS, CNRS-UMR 8256, INSERM U1164, Sorbonne Universités, F-75005, Paris, France.
| | - Andrea B Maier
- Department of Internal Medicine, Section of Gerontology and Geriatrics, VU University Medical Center, Amsterdam, The Netherlands.
| | - Gillian Butler-Browne
- Institut de Myologie, Centre de Recherches en Myologie UMR 974 76, INSERM U974, CNRS FRE 3617, Sorbonne Universités, UPMC Université Paris 06, F-75013, Paris, France.
| | - Daniel Béchet
- INRA, UMR 1019, Centre de Recherche en Nutrition Humaine, Université d'Auvergne, F-63122, Saint Genès Champanelle, France. .,Clermont Université, Université d'Auvergne, F-63000, Clermont-Ferrand, France.
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Age modulates Fe3O4 nanoparticles liver toxicity: dose-dependent decrease in mitochondrial respiratory chain complexes activities and coupling in middle-aged as compared to young rats. BIOMED RESEARCH INTERNATIONAL 2014; 2014:474081. [PMID: 24949453 PMCID: PMC4032731 DOI: 10.1155/2014/474081] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/03/2014] [Accepted: 04/04/2014] [Indexed: 12/17/2022]
Abstract
We examined the effects of iron oxide nanoparticles (IONPs) on mitochondrial respiratory chain complexes activities and mitochondrial coupling in young (3 months) and middle-aged (18 months) rat liver, organ largely involved in body iron detoxification. Isolated liver mitochondria were extracted using differential centrifugations. Maximal oxidative capacities (Vmax, complexes I, III, and IV activities), Vsucc (complexes II, III, and IV activities), and Vtmpd, (complex IV activity), together with mitochondrial coupling (Vmax/V0) were determined in controls conditions and after exposure to 250, 300, and 350 μg/ml Fe3O4 in young and middle-aged rats. In young liver mitochondria, exposure to IONPs did not alter mitochondrial function. In contrast, IONPs dose-dependently impaired all complexes of the mitochondrial respiratory chain in middle-aged rat liver: Vmax (from 30 ± 1.6 to 17.9 ± 1.5; P < 0.001), Vsucc (from 33.9 ± 1.7 to 24.3 ± 1.0; P < 0.01), Vtmpd (from 43.0 ± 1.6 to 26.3 ± 2.2 µmol O2/min/g protein; P < 0.001) using Fe3O4 350 µg/ml. Mitochondrial coupling also decreased. Interestingly, 350 μg/ml Fe3O4 in the form of Fe3+ solution did not impair liver mitochondrial function in middle-aged rats. Thus, IONPs showed a specific toxicity in middle-aged rats suggesting caution when using it in old age.
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40
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Kim TH, Hwang HJ, Kim SH. Relationship between serum ferritin levels and sarcopenia in Korean females aged 60 years and older using the fourth Korea National Health and Nutrition Examination Survey (KNHANES IV-2, 3), 2008-2009. PLoS One 2014; 9:e90105. [PMID: 24587226 PMCID: PMC3934984 DOI: 10.1371/journal.pone.0090105] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Accepted: 01/30/2014] [Indexed: 12/28/2022] Open
Abstract
Context It has been suggested that elevated serum ferritin is associated with several metabolic disorders. However, there is no reported study assessing any association between serum ferritin and sarcopenia despite the close relationship between sarcopenia and metabolic disorders. Objective We investigated whether serum ferritin was associated with sarcopenia in older Koreans. Design and Setting We conducted a cross-sectional study based on data acquired in the second and third years (2008–9) of the fourth Korean National Health and Nutrition Examination Survey. Participants In total, 952 men (mean age 69.0 years) and 1,380 women (mean age 69.3 years) aged 60 years and older completed a body composition study using dual energy X-ray absorptiometry. Measurements Serum ferritin levels were measured. Sarcopenia was defined as an appendicular skeletal mass as a percentage of body weight that was less than two standard deviations below the gender-specific mean for young adults. Results Serum ferritin levels were lower in women than in men. Women with sarcopenia showed a higher level of serum ferritin than women without sarcopenia (men: without sarcopenia 115.7 ng/mL and with sarcopenia 134.4 ng/mL vs. women: without sarcopenia 70.7 ng/mL and with sarcopenia 85.4 ng/mL). The prevalence of sarcopenia increased as the tertile of serum ferritin increased. However, statistical significance was only seen in elderly women (1st tertile 6.3%, 2nd tertile 8.0%, 3rd tertile 12.0%; p = 0.008). Without adjustment, compared with those in the lowest tertile of serum ferritin level, participants in the highest tertile had an odds ratio of 2.02 (95% confidence interval = 1.26–3.23) for sarcopenia in women. After adjusting for known risk factors, the OR for sarcopenia was 1.74 (95% CI = 1.02–2.97) in women. There was no statistically significant association between sarcopenia and serum ferritin tertiles in men. Conclusions Elevated serum ferritin levels were associated with an increased prevalence of sarcopenia in women but not in men from a representative sample of elderly Koreans.
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Affiliation(s)
- Tae Ho Kim
- Division of Endocrinology, Department of Internal Medicine, Kwandong University College of Medicine, Gangneung, Republic of Korea
| | - Hee-Jin Hwang
- Department of Family Medicine, Kwandong University College of Medicine, Gangneung, Republic of Korea
- * E-mail: (HJH); (SHK)
| | - Sang-Hwan Kim
- Geriatric Center and Department of Family Medicine, Myongji Hospital, Goyang, Republic of Korea
- * E-mail: (HJH); (SHK)
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Théron L, Gueugneau M, Coudy C, Viala D, Bijlsma A, Butler-Browne G, Maier A, Béchet D, Chambon C. Label-free quantitative protein profiling of vastus lateralis muscle during human aging. Mol Cell Proteomics 2013; 13:283-94. [PMID: 24217021 DOI: 10.1074/mcp.m113.032698] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Sarcopenia corresponds to the loss of muscle mass occurring during aging, and is associated with a loss of muscle functionality. Proteomic links the muscle functional changes with protein expression pattern. To better understand the mechanisms involved in muscle aging, we performed a proteomic analysis of Vastus lateralis muscle in mature and older women. For this, a shotgun proteomic method was applied to identify soluble proteins in muscle, using a combination of high performance liquid chromatography and mass spectrometry. A label-free protein profiling was then conducted to quantify proteins and compare profiles from mature and older women. This analysis showed that 35 of the 366 identified proteins were linked to aging in muscle. Most of the proteins were under-represented in older compared with mature women. We built a functional interaction network linking the proteins differentially expressed between mature and older women. The results revealed that the main differences between mature and older women were defined by proteins involved in energy metabolism and proteins from the myofilament and cytoskeleton. This is the first time that label-free quantitative proteomics has been applied to study of aging mechanisms in human skeletal muscle. This approach highlights new elements for elucidating the alterations observed during aging and may lead to novel sarcopenia biomarkers.
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Affiliation(s)
- Laëtitia Théron
- INRA, Plateforme d'Exploration du Métabolisme (PFEM), composante protéomique, F-63122 Saint Genès Champanelle, France
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42
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Aging-related changes in the iron status of skeletal muscle. Exp Gerontol 2013; 48:1294-302. [PMID: 23994517 DOI: 10.1016/j.exger.2013.08.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 07/17/2013] [Accepted: 08/21/2013] [Indexed: 11/22/2022]
Abstract
The rise in non-heme iron (NHI) concentration observed in skeletal muscle of aging rodents is thought to contribute to the development of sarcopenia. The source of the NHI has not been identified, nor have the physiological ramifications of elevated iron status in aged muscle been directly examined. Therefore, we assessed plantaris NHI and heme iron (HI) levels in addition to expression of proteins involved in iron uptake (transferrin receptor-1; TfR1), storage (ferritin), export (ferroportin; FPN), and regulation (iron regulatory protein-1 (IRP1) and -2 (IRP2)) of male F344xBN F1 rats (n=10/group) of various ages (8, 18, 28, 32, and 36 months) to further understand iron regulation in aging muscle. In a separate experiment, iron chelator (pyridoxal isonicotinoyl hydrazone; PIH) or vehicle was administered to male F344xBN F1 rats (n=8/group) beginning at 30 months of age to assess the impact on plantaris muscle mass and function at ~36 months of age. Principle findings revealed the increased NHI concentration in old age was consistent with concentrating effects of muscle atrophy and reduction in HI levels, with no change in the total iron content of the muscle. The greatest increase in muscle iron content occurred during the period of animal growth and was associated with downregulation of TfR1 and IRP2 expression. Ferritin upregulation did not occur until senescence and the protein remained undetectable during the period of muscle iron content elevation. Lastly, administration of PIH did not significantly (p>0.05) impact NHI or measures of muscle atrophy or contractile function. In summary, this study confirms that the elevated NHI concentration in old age is largely due to the loss in muscle mass. The increased muscle iron content during aging does not appear to associate with cytosolic ferritin storage, but the functional consequences of elevated iron status in old age remains to be determined.
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43
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Bulvik BE, Berenshtein E, Konijn AM, Grinberg L, Vinokur V, Eliashar R, Chevion M(M. Aging is an organ-specific process: changes in homeostasis of iron and redox proteins in the rat. AGE (DORDRECHT, NETHERLANDS) 2012; 34:693-704. [PMID: 21643761 PMCID: PMC3337928 DOI: 10.1007/s11357-011-9268-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Accepted: 05/09/2011] [Indexed: 05/30/2023]
Abstract
Organ-specific changes of iron- and redox-related proteins occur with age in the rat. Ferritin, the major iron storage and detoxifying protein, as well as the proteins of the methionine-centered redox cycle (MCRC) were examined in old and young animals, and showed organ-dependent changes. In spleens and livers of aged rats, ferritin (protein) levels were greater than in young ones, and their iron saturation increased, rendering higher ferritin-bound iron (FtBI). Iron saturation of the ferritin molecule in the tongues and sternohyoids of old rats was lower but ferritin level was higher than in young rats, resulting in increased FtBI with age. Ferritin level in the esophagus of older rats was lower than in young rats but its molecular iron content higher thus the total FtBI remained the same. In the larynx, both ferritin and its iron content were the same in young and old animals. MCRC proteins were measured in livers and spleens only. With aging, methionine sulfoxide reductase A and B (MsrA and MsrB) levels in livers and spleens decreased. Thioredoxin1 (Trx) and Trx-reductase1 were elevated in old spleens, but reduced in livers. Aged spleens showed reduced Msr isozyme activity; but in the liver, its activity increased. mRNA changes with age were monitored and found to be organ specific. These organ-specific changes could reflect the different challenges and the selective pathways of each organ and its resultant capacity to cope with aging.
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Affiliation(s)
- Baruch E. Bulvik
- Department of Cellular Biochemistry and Human Genetics, The Hebrew University of Jerusalem, Faculty of Medicine and Dental Medicine, Jerusalem, Israel 91120
| | - Eduard Berenshtein
- Department of Cellular Biochemistry and Human Genetics, The Hebrew University of Jerusalem, Faculty of Medicine and Dental Medicine, Jerusalem, Israel 91120
| | - Abraham Marim Konijn
- Department of Human Nutrition and Metabolism, The Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem, Israel 91120
| | - Leonid Grinberg
- Department of Cellular Biochemistry and Human Genetics, The Hebrew University of Jerusalem, Faculty of Medicine and Dental Medicine, Jerusalem, Israel 91120
| | - Vladimir Vinokur
- Department of Otolaryngology/Head and Neck Surgery, The Hadassah-Hebrew University Hospital, Jerusalem, Israel
| | - Ron Eliashar
- Department of Otolaryngology/Head and Neck Surgery, The Hadassah-Hebrew University Hospital, Jerusalem, Israel
| | - Mordechai (Mottie) Chevion
- Department of Cellular Biochemistry and Human Genetics, The Hebrew University of Jerusalem, Faculty of Medicine and Dental Medicine, Jerusalem, Israel 91120
- The Hebrew University of Jerusalem, The Hebrew University-Hadassah Dental and Medical Schools, P. O. B. 12272, Jerusalem, 91120 Israel
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44
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Zhou D, Bai Y, Che X. Ultrastructural and proteomic alteration of superficial masseter muscle after lower jaw sagittal advancement in rat. Arch Oral Biol 2012; 57:436-44. [DOI: 10.1016/j.archoralbio.2011.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 09/28/2011] [Accepted: 09/30/2011] [Indexed: 11/16/2022]
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45
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Impaired iron status in aging research. Int J Mol Sci 2012; 13:2368-2386. [PMID: 22408459 PMCID: PMC3292028 DOI: 10.3390/ijms13022368] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 02/18/2012] [Accepted: 02/20/2012] [Indexed: 01/07/2023] Open
Abstract
Aging is associated with disturbances in iron metabolism and storage. During the last decade, remarkable progress has been made toward understanding their cellular and molecular mechanisms in aging and age-associated diseases using both cultured cells and animal models. The field has moved beyond descriptive studies to potential intervention studies focusing on iron chelation and removal. However, some findings remain controversial and inconsistent. This review summarizes important features of iron dyshomeostasis in aging research with a particular emphasis on current knowledge of the mechanisms underlying age-associated disorders in rodent models.
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46
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Reactive oxygen species in skeletal muscle signaling. JOURNAL OF SIGNAL TRANSDUCTION 2011; 2012:982794. [PMID: 22175016 PMCID: PMC3235811 DOI: 10.1155/2012/982794] [Citation(s) in RCA: 249] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 08/25/2011] [Indexed: 12/13/2022]
Abstract
Generation of reactive oxygen species (ROS) is a ubiquitous phenomenon in eukaryotic cells' life. Up to the 1990s of the past century, ROS have been solely considered as toxic species resulting in oxidative stress, pathogenesis and aging. However, there is now clear evidence that ROS are not merely toxic species but also-within certain concentrations-useful signaling molecules regulating physiological processes. During intense skeletal muscle contractile activity myotubes' mitochondria generate high ROS flows: this renders skeletal muscle a tissue where ROS hold a particular relevance. According to their hormetic nature, in muscles ROS may trigger different signaling pathways leading to diverging responses, from adaptation to cell death. Whether a "positive" or "negative" response will prevail depends on many variables such as, among others, the site of ROS production, the persistence of ROS flow or target cells' antioxidant status. In this light, a specific threshold of physiological ROS concentrations above which ROS exert negative, toxic effects is hard to determine, and the concept of "physiologically compatible" levels of ROS would better fit with such a dynamic scenario. In this review these concepts will be discussed along with the most relevant signaling pathways triggered and/or affected by ROS in skeletal muscle.
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47
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Xu J, Hwang JCY, Lees HA, Wohlgemuth SE, Knutson MD, Judge AR, Dupont-Versteegden EE, Marzetti E, Leeuwenburgh C. Long-term perturbation of muscle iron homeostasis following hindlimb suspension in old rats is associated with high levels of oxidative stress and impaired recovery from atrophy. Exp Gerontol 2011; 47:100-8. [PMID: 22085543 DOI: 10.1016/j.exger.2011.10.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 10/06/2011] [Accepted: 10/28/2011] [Indexed: 11/26/2022]
Abstract
In the present study, we investigated the effects of 7 and 14 days of re-loading following 14-day muscle unweighting (hindlimb suspension, HS) on iron transport, non-heme iron levels and oxidative damage in the gastrocnemius muscle of young (6 months) and old (32 months) male Fischer 344×Brown Norway rats. Our results demonstrated that old rats had lower muscle mass, higher levels of total non-heme iron and oxidative damage in skeletal muscle in comparison with young rats. Non-heme iron concentrations and total non-heme iron amounts were 3.4- and 2.3-fold higher in aged rats as compared with their young counterparts, respectively. Seven and 14 days of re-loading was associated with higher muscle weights in young animals as compared with age-matched HS rats, but there was no difference in muscle weights among aged HS, 7 and 14 days of re-loading rats, indicating that aged rats may have a lower adaptability to muscle disuse and a lower capacity to recover from muscle atrophy. Protein levels of cellular iron transporters, such as divalent metal transport-1 (DMT1), transferrin receptor-1 (TfR1), Zip14, and ferroportin (FPN), and their mRNA abundance were determined. TfR1 protein and mRNA levels were significantly lower in aged muscle. Seven and 14 days of re-loading were associated with higher TfR1 mRNA and protein levels in young animals in comparison with their age-matched HS counterparts, but there was no difference between cohorts in aged animals, suggesting adaptive responses in the old to cope with iron deregulation. The extremely low expression of FPN in skeletal muscle might lead to inefficient iron export in the presence of iron overload and play a critical role in age-related iron accumulation in skeletal muscle. Moreover, oxidative stress was much greater in the muscles of the older animals measured as 4-hydroxy-2-nonhenal (HNE)-modified proteins and 8-oxo-7,8-dihydroguanosine levels. These markers remained fairly constant with either HS or re-loading in young rats. In old rats, HNE-modified proteins and 8-oxo-7,8-dihydroguanosine levels were markedly higher in HS and were lower after 7 days of recovery. However, no difference was observed following 14 days of recovery between control and re-loading animals. In conclusion, advanced age is associated with disruption of muscle iron metabolism which is further perturbed by disuse and persists over a longer time period.
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Affiliation(s)
- Jinze Xu
- Department of Aging and Geriatric Research, Division of Biology of Aging, Genomics and Biomarkers Core of The Institute on Aging, University of Florida, Gainesville, Florida 32611, USA.
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48
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49
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Kostrominova TY. Advanced age-related denervation and fiber-type grouping in skeletal muscle of SOD1 knockout mice. Free Radic Biol Med 2010; 49:1582-93. [PMID: 20800676 DOI: 10.1016/j.freeradbiomed.2010.08.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 07/21/2010] [Accepted: 08/19/2010] [Indexed: 12/16/2022]
Abstract
In this study skeletal muscles from 1.5- and 10-month-old Cu/Zn superoxide dismutase (SOD1) homozygous knockout (JLSod1(-/-)) mice obtained from The Jackson Laboratory (C57Bl6/129SvEv background) were compared with muscles from age- and sex-matched heterozygous (JLSod1(+/-)) littermates. The results of this study were compared with previously published data on two different strains of Sod1(-/-) mice: one from Dr. Epstein's laboratory (ELSod1(-/-); C57Bl6 background) and the other from Cephalon, Inc. (CSod1(-/-); 129/CD-1 background). Grouping of succinate dehydrogenase-positive fibers characterized muscles of Sod1(-/-) mice from all three strains. The 10-month-old Sod1(-/-)C and JL mice displayed pronounced denervation of the gastrocnemius muscle, whereas the ELSod1(-/-) mice displayed a small degree of denervation at this age, but developed accelerated age-related denervation later on. Denervation markers were up-regulated in skeletal muscle of 10-month-old JLSod1(-/-) mice. This study is the first to show that metallothionein mRNA and protein expression was up-regulated in the skeletal muscle of 10-month-old JLSod1(-/-) mice and was mostly localized to the small atrophic muscle fibers. In conclusion, all three strains of Sod1(-/-) mice develop accelerated age-related muscle denervation, but the genetic background has significant influence on the progress of denervation.
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Affiliation(s)
- Tatiana Y Kostrominova
- Department of Anatomy and Cell Biology, Indiana University School of Medicine–Northwest, Gary, IN 46409-1008, USA.
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50
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Altun M, Besche HC, Overkleeft HS, Piccirillo R, Edelmann MJ, Kessler BM, Goldberg AL, Ulfhake B. Muscle wasting in aged, sarcopenic rats is associated with enhanced activity of the ubiquitin proteasome pathway. J Biol Chem 2010; 285:39597-608. [PMID: 20940294 DOI: 10.1074/jbc.m110.129718] [Citation(s) in RCA: 162] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Among the hallmarks of aged organisms are an accumulation of misfolded proteins and a reduction in skeletal muscle mass ("sarcopenia"). We have examined the effects of aging and dietary restriction (which retards many age-related changes) on components of the ubiquitin proteasome system (UPS) in muscle. The hindlimb muscles of aged (30 months old) rats showed a marked loss of muscle mass and contained 2-3-fold higher levels of 26S proteasomes than those of adult (4 months old) controls. 26S proteasomes purified from muscles of aged and adult rats showed a similar capacity to degrade peptides, proteins, and an ubiquitylated substrate, but differed in levels of proteasome-associated proteins (e.g. the ubiquitin ligase E6AP and deubiquitylating enzyme USP14). Also, the activities of many other deubiquitylating enzymes were greatly enhanced in the aged muscles. Nevertheless, their content of polyubiquitylated proteins was higher than in adult animals. The aged muscles contained higher levels of the ubiquitin ligase CHIP, involved in eliminating misfolded proteins, and MuRF1, which ubiquitylates myofibrillar proteins. These muscles differed from ones rapidly atrophying due to disease, fasting, or disuse in that Atrogin-1/MAFbx expression was low and not inducible by glucocorticoids. Thus, the muscles of aged rats showed many adaptations indicating enhanced proteolysis by the UPS, which may enhance their capacity to eliminate misfolded proteins and seems to contribute to the sarcopenia. Accordingly, dietary restriction decreased or prevented the aging-associated increases in proteasomes and other UPS components and reduced muscle wasting.
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Affiliation(s)
- Mikael Altun
- Department of Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden.
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