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Henin G, Loumaye A, Deldicque L, Leclercq IA, Lanthier N. Unlocking liver health: Can tackling myosteatosis spark remission in metabolic dysfunction-associated steatotic liver disease? Liver Int 2024; 44:1781-1796. [PMID: 38623714 DOI: 10.1111/liv.15938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/12/2024] [Accepted: 04/02/2024] [Indexed: 04/17/2024]
Abstract
Myosteatosis is highly prevalent in metabolic dysfunction-associated steatotic liver disease (MASLD) and could reciprocally impact liver function. Decreasing muscle fat could be indirectly hepatoprotective in MASLD. We conducted a review to identify interventions reducing myosteatosis and their impact on liver function. Non-pharmacological interventions included diet (caloric restriction or lipid enrichment), bariatric surgery and physical activity. Caloric restriction in humans achieving a mean weight loss of 3% only reduces muscle fat. Lipid-enriched diet increases liver fat in human with no impact on muscle fat, except sphingomyelin-enriched diet which reduces both lipid contents exclusively in pre-clinical studies. Bariatric surgery, hybrid training (resistance exercise and electric stimulation) or whole-body vibration in human decrease both liver and muscle fat. Physical activity impacts both phenotypes by reducing local and systemic inflammation, enhancing insulin sensitivity and modulating the expression of key mediators of the muscle-liver-adipose tissue axis. The combination of diet and physical activity acts synergistically in liver, muscle and white adipose tissue, and further decrease muscle and liver fat. Several pharmacological interventions (patchouli alcohol, KBP-089, 2,4-dinitrophenol methyl ether, adipoRon and atglistatin) and food supplementation (vitamin D or resveratrol) improve liver and muscle phenotypes in pre-clinical studies by increasing fatty acid oxidation and anti-inflammatory properties. These interventions are effective in reducing myosteatosis in MASLD while addressing the liver disease itself. This review supports that disturbances in inter-organ crosstalk are key pathophysiological mechanisms involved in MASLD and myosteatosis pathogenesis. Focusing on the skeletal muscle might offer new therapeutic strategies to treat MASLD by modulating the interactions between liver and muscles.
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Affiliation(s)
- Guillaume Henin
- Service d'Hépato-Gastroentérologie, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Audrey Loumaye
- Service d'Endocrinologie, Diabétologie et Nutrition, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
| | | | - Isabelle A Leclercq
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Nicolas Lanthier
- Service d'Hépato-Gastroentérologie, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
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2
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Wang YF, An ZY, Li JW, Dong ZK, Jin WL. MG53/TRIM72: multi-organ repair protein and beyond. Front Physiol 2024; 15:1377025. [PMID: 38681139 PMCID: PMC11046001 DOI: 10.3389/fphys.2024.1377025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/01/2024] [Indexed: 05/01/2024] Open
Abstract
MG53, a member of the tripartite motif protein family, possesses multiple functionalities due to its classic membrane repair function, anti-inflammatory ability, and E3 ubiquitin ligase properties. Initially recognized for its crucial role in membrane repair, the therapeutic potential of MG53 has been extensively explored in various diseases including muscle injury, myocardial damage, acute lung injury, and acute kidney injury. However, further research has revealed that the E3 ubiquitin ligase characteristics of MG53 also contribute to the pathogenesis of certain conditions such as diabetic cardiomyopathy, insulin resistance, and metabolic syndrome. Moreover, recent studies have highlighted the anti-tumor effects of MG53 in different types of cancer, such as small cell lung cancer, liver cancer, and colorectal cancer; these effects are closely associated with their E3 ubiquitin ligase activities. In summary, MG53 is a multifunctional protein that participates in important physiological and pathological processes of multiple organs and is a promising therapeutic target for various human diseases. MG53 plays a multi-organ protective role due to its membrane repair function and its exertion of anti-tumor effects due to its E3 ubiquitin ligase properties. In addition, the controversial aspect of MG53's E3 ubiquitin ligase properties potentially causing insulin resistance and metabolic syndrome necessitates further cross-validation for clarity.
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Affiliation(s)
- Yong-Fei Wang
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou, China
| | - Zi-Yi An
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou, China
| | - Jian-Wen Li
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou, China
| | - Zi-Kai Dong
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou, China
| | - Wei-Lin Jin
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, Lanzhou, China
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Lee D, Yoon E, Ham SJ, Lee K, Jang H, Woo D, Lee DH, Kim S, Choi S, Chung J. Diabetic sensory neuropathy and insulin resistance are induced by loss of UCHL1 in Drosophila. Nat Commun 2024; 15:468. [PMID: 38212312 PMCID: PMC10784524 DOI: 10.1038/s41467-024-44747-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 12/29/2023] [Indexed: 01/13/2024] Open
Abstract
Diabetic sensory neuropathy (DSN) is one of the most common complications of type 2 diabetes (T2D), however the molecular mechanistic association between T2D and DSN remains elusive. Here we identify ubiquitin C-terminal hydrolase L1 (UCHL1), a deubiquitinase highly expressed in neurons, as a key molecule underlying T2D and DSN. Genetic ablation of UCHL1 leads to neuronal insulin resistance and T2D-related symptoms in Drosophila. Furthermore, loss of UCHL1 induces DSN-like phenotypes, including numbness to external noxious stimuli and axonal degeneration of sensory neurons in flies' legs. Conversely, UCHL1 overexpression improves DSN-like defects of T2D model flies. UCHL1 governs insulin signaling by deubiquitinating insulin receptor substrate 1 (IRS1) and antagonizes an E3 ligase of IRS1, Cullin 1 (CUL1). Consistent with these results, genetic and pharmacological suppression of CUL1 activity rescues T2D- and DSN-associated phenotypes. Therefore, our findings suggest a complete set of genetic factors explaining T2D and DSN, together with potential remedies for the diseases.
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Affiliation(s)
- Daewon Lee
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Eunju Yoon
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Su Jin Ham
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kunwoo Lee
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
| | - Hansaem Jang
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
| | - Daihn Woo
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
| | - Da Hyun Lee
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sehyeon Kim
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sekyu Choi
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea.
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea.
| | - Jongkyeong Chung
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea.
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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Chen J, Feng X, Zhou X, Li Y. Role of the tripartite motif-containing (TRIM) family of proteins in insulin resistance and related disorders. Diabetes Obes Metab 2024; 26:3-15. [PMID: 37726973 DOI: 10.1111/dom.15294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/27/2023] [Accepted: 09/05/2023] [Indexed: 09/21/2023]
Abstract
Emerging evidence suggests that the ubiquitin-mediated degradation of insulin-signalling-related proteins may be involved in the development of insulin resistance and its related disorders. Tripartite motif-containing (TRIM) proteins, a superfamily belonging to the E3 ubiquitin ligases, are capable of controlling protein levels and function by ubiquitination, which is essential for the modulation of insulin sensitivity. Recent research has indicated that some of these TRIMs act as key regulatory factors of metabolic disorders such as type 2 diabetes mellitus, obesity, nonalcoholic fatty liver disease, and atherosclerosis. This review provides a comprehensive overview of the latest evidence linking TRIMs to the regulation of insulin resistance and its related disorders, their roles in regulating multiple signalling pathways or cellular processes, such as insulin signalling pathways, peroxisome proliferator-activated receptor signalling pathways, glucose and lipid metabolism, the inflammatory response, and cell cycle control, as well as recent advances in the development of TRIM-targeted drugs.
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Affiliation(s)
- Jianrong Chen
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Clinical Research Centre for Endocrine and Metabolic disease, Nanchang, China
- Jiangxi Branch of National Clinical Research Centre for Metabolic disease, Nanchang, China
| | - Xianjie Feng
- Evidence-based Medicine Research Centre, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Xu Zhou
- Evidence-based Medicine Research Centre, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Yong Li
- Department of Anaesthesiology, Medical Centre of Anaesthesiology and Pain, First Affiliated Hospital of Nanchang University, Nanchang, China
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Du Y, Li T, Yi M. Is MG53 a potential therapeutic target for cancer? Front Endocrinol (Lausanne) 2023; 14:1295349. [PMID: 38033997 PMCID: PMC10684902 DOI: 10.3389/fendo.2023.1295349] [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: 09/16/2023] [Accepted: 11/01/2023] [Indexed: 12/02/2023] Open
Abstract
Cancer treatment still encounters challenges, such as side effects and drug resistance. The tripartite-motif (TRIM) protein family is widely involved in regulation of the occurrence, development, and drug resistance of tumors. MG53, a member of the TRIM protein family, shows strong potential in cancer therapy, primarily due to its E3 ubiquitin ligase properties. The classic membrane repair function and anti-inflammatory capacity of MG53 may also be beneficial for cancer prevention and treatment. However, MG53 appears to be a key regulatory factor in impaired glucose metabolism and a negative regulatory mechanism in muscle regeneration that may have a negative effect on cancer treatment. Developing MG53 mutants that balance the pros and cons may be the key to solving the problem. This article aims to summarize the role and mechanism of MG53 in the occurrence, progression, and invasion of cancer, focusing on the potential impact of the biological function of MG53 on cancer therapy.
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Affiliation(s)
- Yunyu Du
- School of Sports Science, Beijing Sport University, Beijing, China
- National Institute of Sports Medicine, Beijing, China
| | - Tieying Li
- National Institute of Sports Medicine, Beijing, China
| | - Muqing Yi
- National Institute of Sports Medicine, Beijing, China
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6
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Tastekin B, Pelit A, Sapmaz T, Celenk A, Majeed M, Mundkur L, Nagabhushanam K. The Effects of Antioxidants and Pulsed Magnetic Fields on Slow and Fast Skeletal Muscle Atrophy Induced by Streptozotocin: A Preclinical Study. J Diabetes Res 2023; 2023:6657869. [PMID: 38020198 PMCID: PMC10661870 DOI: 10.1155/2023/6657869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/20/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Results Our findings suggest that antioxidants and PMF may alleviate impaired protein synthesis and degradation pathways in skeletal muscle atrophy. PTS showed a positive effect on the anabolic pathway, while RSV and PMF demonstrated potential for ameliorating the catabolic pathway. Notably, the combination therapy of antioxidants and PMF exhibited a stronger ameliorative effect on skeletal muscle atrophy than either intervention alone. Conclusion The present results highlight the benefits of employing a multimodal approach, involving both antioxidant and PMF therapy, for the management of muscle-wasting conditions. These treatments may have potential therapeutic implications for skeletal muscle atrophy.
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Affiliation(s)
- Bora Tastekin
- Department of Biophysics, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Aykut Pelit
- Department of Biophysics, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Tugce Sapmaz
- Department of Histology and Embryology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Alper Celenk
- Department of Histology and Embryology, Faculty of Medicine, Cukurova University, Adana, Türkiye
| | - Muhammed Majeed
- Sami-Sabinsa Group Ltd., 19/1 & 19/2 I Main, II Phase, Peenya Industrial Area, Bangalore, India
- Sabinsa Corporation, 20 Lake Drive, East Windsor, New Jersey, USA
| | - Lakshmi Mundkur
- Sami-Sabinsa Group Ltd., 19/1 & 19/2 I Main, II Phase, Peenya Industrial Area, Bangalore, India
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7
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Ma Y, Ding L, Li Z, Zhou C. Structural basis for TRIM72 oligomerization during membrane damage repair. Nat Commun 2023; 14:1555. [PMID: 36944613 PMCID: PMC10030467 DOI: 10.1038/s41467-023-37198-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 03/06/2023] [Indexed: 03/23/2023] Open
Abstract
Tripartite Motif Protein 72 (TRIM72, also named MG53) mediates membrane damage repair through membrane fusion and exocytosis. During injury, TRIM72 molecules form intermolecular disulfide bonds in response to the oxidative environment and TRIM72 oligomers are proposed to connect vesicles to the plasma membrane and promote membrane fusion in conjunction with other partners like dysferlin and caveolin. However, the detailed mechanism of TRIM72 oligomerization and action remains unclear. Here we present the crystal structure of TRIM72 B-box-coiled-coil-SPRY domains (BCC-SPRY), revealing the molecular basis of TRIM72 oligomerization, which is closely linked to disulfide bond formation. Through structure-guided mutagenesis, we have identified and characterized key residues that are important for the membrane repair function of TRIM72. Our results also demonstrate that TRIM72 interacts with several kinds of negatively charged lipids in addition to phosphatidylserine. Our work provides a structural foundation for further mechanistic studies as well as the clinical application of TRIM72.
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Affiliation(s)
- Yuemin Ma
- School of Public Health, and Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, China
| | - Lei Ding
- School of Public Health, and Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, China
| | - Zhenhai Li
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200072, China
| | - Chun Zhou
- School of Public Health, and Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, China.
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8
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Xu B, Wang C, Chen H, Zhang L, Gong L, Zhong L, Yang J. Protective role of MG53 against ischemia/reperfusion injury on multiple organs: A narrative review. Front Physiol 2022; 13:1018971. [PMID: 36479346 PMCID: PMC9720843 DOI: 10.3389/fphys.2022.1018971] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 11/07/2022] [Indexed: 12/19/2023] Open
Abstract
Ischemia/reperfusion (I/R) injury is a common clinical problem after coronary angioplasty, cardiopulmonary resuscitation, and organ transplantation, which can lead to cell damage and death. Mitsugumin 53 (MG53), also known as Trim72, is a conservative member of the TRIM family and is highly expressed in mouse skeletal and cardiac muscle, with minimal amounts in humans. MG53 has been proven to be involved in repairing cell membrane damage. It has a protective effect on I/R injury in multiple oxygen-dependent organs, such as the heart, brain, lung, kidney, and liver. Recombinant human MG53 also plays a unique role in I/R, sepsis, and other aspects, which is expected to provide new ideas for related treatment. This article briefly reviews the pathophysiology of I/R injury and how MG53 mitigates multi-organ I/R injury.
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Affiliation(s)
- Bowen Xu
- The 2nd Medical College of Binzhou Medical University, Yantai, Shandong, China
- Department of Cardiology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Chunxiao Wang
- Department of Cardiology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Hongping Chen
- Department of Cardiology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
- Medical Department of Qingdao University, Qingdao, Shandong, China
| | - Lihui Zhang
- Department of Cardiology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
- Medical Department of Qingdao University, Qingdao, Shandong, China
| | - Lei Gong
- Department of Cardiology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Lin Zhong
- Department of Cardiology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Jun Yang
- Department of Cardiology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
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9
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Ubiquitin Ligases in Longevity and Aging Skeletal Muscle. Int J Mol Sci 2022; 23:ijms23147602. [PMID: 35886949 PMCID: PMC9315556 DOI: 10.3390/ijms23147602] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 12/07/2022] Open
Abstract
The development and prevalence of diseases associated with aging presents a global health burden on society. One hallmark of aging is the loss of proteostasis which is caused in part by alterations to the ubiquitin-proteasome system (UPS) and lysosome-autophagy system leading to impaired function and maintenance of mass in tissues such as skeletal muscle. In the instance of skeletal muscle, the impairment of function occurs early in the aging process and is dependent on proteostatic mechanisms. The UPS plays a pivotal role in degradation of misfolded and aggregated proteins. For the purpose of this review, we will discuss the role of the UPS system in the context of age-related loss of muscle mass and function. We highlight the significant role that E3 ubiquitin ligases play in the turnover of key components (e.g., mitochondria and neuromuscular junction) essential to skeletal muscle function and the influence of aging. In addition, we will briefly discuss the contribution of the UPS system to lifespan. By understanding the UPS system as part of the proteostasis network in age-related diseases and disorders such as sarcopenia, new discoveries can be made and new interventions can be developed which will preserve muscle function and maintain quality of life with advancing age.
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10
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Paleo BJ, McElhanon KE, Bulgart HR, Banford KK, Beck EX, Sattler KM, Goines BN, Ratcliff SL, Crowe KE, Weisleder N. Reduced Sarcolemmal Membrane Repair Exacerbates Striated Muscle Pathology in a Mouse Model of Duchenne Muscular Dystrophy. Cells 2022; 11:1417. [PMID: 35563723 PMCID: PMC9100510 DOI: 10.3390/cells11091417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 02/06/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is a common X-linked degenerative muscle disorder that involves mutations in the DMD gene that frequently reduce the expression of the dystrophin protein, compromising the structural integrity of the sarcolemmal membrane and leaving it vulnerable to injury during cycles of muscle contraction and relaxation. This results in an increased frequency of sarcolemma disruptions that can compromise the barrier function of the membrane and lead to death of the myocyte. Sarcolemmal membrane repair processes can potentially compensate for increased membrane disruptions in DMD myocytes. Previous studies demonstrated that TRIM72, a muscle-enriched tripartite motif (TRIM) family protein also known as mitsugumin 53 (MG53), is a component of the cell membrane repair machinery in striated muscle. To test the importance of membrane repair in striated muscle in compensating for the membrane fragility in DMD, we crossed TRIM72/MG53 knockout mice into the mdx mouse model of DMD. These double knockout (DKO) mice showed compromised sarcolemmal membrane integrity compared to mdx mice, as measured by immunoglobulin G staining and ex vivo muscle laser microscopy wounding assays. We also found a significant decrease in muscle ex vivo contractile function as compared to mdx mice at both 6 weeks and 1.5 years of age. As the DKO mice aged, they developed more extensive fibrosis in skeletal muscles compared to mdx. Our findings indicate that TRIM72/MG53-mediated membrane repair can partially compensate for the sarcolemmal fragility associated with DMD and that the loss of membrane repair results in increased pathology in the DKO mice.
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Affiliation(s)
- Brian J. Paleo
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; (B.J.P.); (K.E.M.); (H.R.B.); (K.K.B.); (E.X.B.)
| | - Kevin E. McElhanon
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; (B.J.P.); (K.E.M.); (H.R.B.); (K.K.B.); (E.X.B.)
| | - Hannah R. Bulgart
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; (B.J.P.); (K.E.M.); (H.R.B.); (K.K.B.); (E.X.B.)
| | - Kassidy K. Banford
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; (B.J.P.); (K.E.M.); (H.R.B.); (K.K.B.); (E.X.B.)
| | - Eric X Beck
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; (B.J.P.); (K.E.M.); (H.R.B.); (K.K.B.); (E.X.B.)
| | - Kristina M. Sattler
- Department of Biology, School of Behavioral & Natural Sciences, Mount St. Joseph University, Cincinnati, OH 45233, USA; (K.M.S.); (B.N.G.); (S.L.R.); (K.E.C.)
| | - Briana N. Goines
- Department of Biology, School of Behavioral & Natural Sciences, Mount St. Joseph University, Cincinnati, OH 45233, USA; (K.M.S.); (B.N.G.); (S.L.R.); (K.E.C.)
| | - Shelby L. Ratcliff
- Department of Biology, School of Behavioral & Natural Sciences, Mount St. Joseph University, Cincinnati, OH 45233, USA; (K.M.S.); (B.N.G.); (S.L.R.); (K.E.C.)
| | - Kelly E. Crowe
- Department of Biology, School of Behavioral & Natural Sciences, Mount St. Joseph University, Cincinnati, OH 45233, USA; (K.M.S.); (B.N.G.); (S.L.R.); (K.E.C.)
| | - Noah Weisleder
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA; (B.J.P.); (K.E.M.); (H.R.B.); (K.K.B.); (E.X.B.)
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11
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Kim JT, Roberts K, Dunlap G, Perry R, Washington T, Wolchok JC. Nandrolone supplementation does not improve functional recovery in an aged animal model of volumetric muscle loss injury. J Tissue Eng Regen Med 2022; 16:367-379. [PMID: 35113494 DOI: 10.1002/term.3286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 01/12/2022] [Accepted: 01/20/2022] [Indexed: 11/12/2022]
Abstract
Aging hinders the effectiveness of regenerative medicine strategies targeting the repair of volumetric muscle loss (VML) injury. Anabolic steroids have been shown to improve several factors which contribute to the age-related decline in muscle's regenerative capacity. In this study, the impact of exogenous nandrolone decanoate (ND) administration on the effectiveness of a VML regenerative repair strategy was explored using an aged animal model. Unilateral tibialis anterior VML injuries were repaired in 18-month-aged animal models (male Fischer 344 rat) using decellularized human skeletal muscle scaffolds supplemented with autologous minced muscle. The contralateral limb was left untreated/uninjured. Following repair, ND(+) or a carrier control (ND-) was delivered via weekly injection for a period of 8 weeks. At 8 weeks, muscle isometric torque, gene expression, and tissue structure were assessed. ND(+) treatment did not improve contractile torque recovery following VML repair when compared to carrier only ND(-) injection controls. Peak isometric torque in the ND(+) VML repair group remained significantly below contralateral uninjured control values (4.69 ± 1.18vs. 7.46 ± 1.53 N mm/kg) and was statistically indistinguishable from carrier only ND(-) VML repair controls (4.47 ± 1.18 N mm/kg). Gene expression for key myogenic genes (Pax7, MyoD, MyoG, IGF-1) were not significantly elevated in response to ND injection, suggesting continued age related myogenic impairment even in the presence of ND(+) treatment. ND injection did reduce the histological appearance of fibrosis at the site of VML repair, and increased expression of the collagen III gene, suggesting some positive effects on repair site matrix regulation. Overall, the results presented in this study suggest that a decline in regenerative capacity with aging may present an obstacle to regenerative medicine strategies targeting VML injury and that the delivery of anabolic stimuli via ND administration was unable to overcome this decline.
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Affiliation(s)
- John T Kim
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
| | - Kevin Roberts
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
| | - Grady Dunlap
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
| | - Richard Perry
- Department of Health, Human Performance, and Recreation, College of Education and Health Professions, University of Arkansas, Fayetteville, Arkansas, USA
| | - Tyrone Washington
- Department of Health, Human Performance, and Recreation, College of Education and Health Professions, University of Arkansas, Fayetteville, Arkansas, USA
| | - Jeffrey C Wolchok
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
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12
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Li N, Li C, Li D, Dang LH, Ren K, Du QX, Cao J, Jin QQ, Wang YY, Bai RF, Sun JH. Identifying biomarkers for evaluating wound extent and age in the contused muscle of rats using microarray analysis: a pilot study. PeerJ 2022; 9:e12709. [PMID: 35036173 PMCID: PMC8710249 DOI: 10.7717/peerj.12709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 12/08/2021] [Indexed: 11/20/2022] Open
Abstract
Wound age estimation is still one of the most important and significant challenges in forensic practice. The extent of wound damage greatly affects the accuracy and reliability of wound age estimation, so it is important to find effective biomarkers to help diagnose wound degree and wound age. In the present study, the gene expression profiles of both mild and severe injuries in 33 rats were assayed at 0, 1, 3, 24, 48, and 168 hours using the Affymetrix microarray system to provide biomarkers for the evaluation of wound age and the extent of the wound. After obtaining thousands of differentially expressed genes, a principal component analysis, the least absolute shrinkage and selection operator, and a time-series analysis were used to select the most predictive prognostic genes. Finally, 15 genes were screened for evaluating the extent of wound damage, and the top 60 genes were also screened for wound age estimation in mild and severe injury. Selected indicators showed good diagnostic performance for identifying the extent of the wound and wound age in a Fisher discriminant analysis. A function analysis showed that the candidate genes were mainly related to cell proliferation and the inflammatory response, primarily IL-17 and the Hematopoietic cell lineage signalling pathway. The results revealed that these genes play an essential role in wound-healing and yield helpful and valuable potential biomarkers for further targeted studies.
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Affiliation(s)
- Na Li
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Chun Li
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Dan Li
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Li-Hong Dang
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Kang Ren
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Qiu-Xiang Du
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Jie Cao
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Qian-Qian Jin
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Ying-Yuan Wang
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
| | - Ru-Feng Bai
- Key Laboratory of Evidence Science, China University of Political Science and Law, Beijing, China
| | - Jun-Hong Sun
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, China
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13
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Li Y, Wang C, Xi HM, Li WT, Liu YJ, Feng S, Chu YJ, Wang YH. Chorionic villus-derived mesenchymal stem cells induce E3 ligase TRIM72 expression and regulate cell behaviors through ubiquitination of p53 in trophoblasts. FASEB J 2021; 35:e22005. [PMID: 34788479 DOI: 10.1096/fj.202100801r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/23/2021] [Accepted: 10/06/2021] [Indexed: 12/20/2022]
Abstract
Preeclampsia is a significant contributor for maternal or fetal morbidity and mortality, which is characterized by reduced invasion capacity of trophoblasts and is regulated by extracellular matrix (ECM). It is still under investigation whether chorionic villus-derived mesenchymal stem cells (CVMSC) could affect the functionality of trophoblasts. In this study, CVMSC-derived exosomes were isolated; their effect on trophoblasts was investigated based on the CCK8 assay, migration assay, and apoptosis detection. And the underlying mechanism of this effect was investigated using mRNA sequencing, western blot, co-immunoprecipitation, luciferase report assay, and ubiquitination assay. The results show that CVMSC-derived exosomes promote migration and proliferation of trophoblasts, and also reduce cell apoptosis. mRNA sequencing confirmed that after treatment of CVMSC-derived exosomes, Tripartite Motif Containing 72 (TRIM72) expression was upregulated and Tumor Protein P53 (P53) expression was downregulated, both significantly in trophoblasts. Subsequent study confirms that TRM72 can directly interact with P53 and promote P53 ubiquitination and proteasomal degradation, reducing apoptosis rate and elevating proliferation and migration in trophoblasts. Our study confirms that CVMSC-derived exosomes promote trophoblast migration and proliferation by upregulating TRIM72 expression, and subsequently advance P53 ubiquitination and proteasomal degradation.
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Affiliation(s)
- Yan Li
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chen Wang
- Department of Operating Room, Qingdao Municipal Hospital, Qingdao, China
| | - Hong-Min Xi
- Department of Neonatology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wen-Ting Li
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ya-Jun Liu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shan Feng
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi-Jing Chu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi-Hao Wang
- Department of Pain Management, Qingdao Municipal Hospital, Qingdao, China
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14
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Huang Y, Xiao Y, Zhang X, Huang X, Li Y. The Emerging Roles of Tripartite Motif Proteins (TRIMs) in Acute Lung Injury. J Immunol Res 2021; 2021:1007126. [PMID: 34712740 PMCID: PMC8548118 DOI: 10.1155/2021/1007126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/09/2021] [Indexed: 11/21/2022] Open
Abstract
Acute lung injury (ALI) is an inflammatory disorder of the lung that causes high mortality and lacks any pharmacological intervention. Ubiquitination plays a critical role in the pathogenesis of ALI as it regulates the alveolocapillary barrier and the inflammatory response. Tripartite motif (TRIM) proteins are one of the subfamilies of the RING-type E3 ubiquitin ligases, which contains more than 80 distinct members in humans involved in a broad range of biological processes including antivirus innate immunity, development, and tumorigenesis. Recently, some studies have shown that several members of TRIM family proteins play important regulatory roles in inflammation and ALI. Herein, we integrate emerging evidence regarding the roles of TRIMs in ALI. Articles were selected from the searches of PubMed database that had the terms "acute lung injury," "ubiquitin ligases," "tripartite motif protein," "inflammation," and "ubiquitination" using both MeSH terms and keywords. Better understanding of these mechanisms may ultimately lead to novel therapeutic approaches by targeting TRIMs for ALI treatment.
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Affiliation(s)
- Yingjie Huang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yue Xiao
- The First Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Xuekang Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xuan Huang
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Yong Li
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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15
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Nishimura Y, Musa I, Holm L, Lai YC. Recent advances in measuring and understanding the regulation of exercise-mediated protein degradation in skeletal muscle. Am J Physiol Cell Physiol 2021; 321:C276-C287. [PMID: 34038244 DOI: 10.1152/ajpcell.00115.2021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Skeletal muscle protein turnover plays a crucial role in controlling muscle mass and protein quality control, including sarcomeric (structural and contractile) proteins. Protein turnover is a dynamic and continual process of protein synthesis and degradation. The ubiquitin proteasome system (UPS) is a key degradative system for protein degradation and protein quality control in skeletal muscle. UPS-mediated protein quality control is known to be impaired in aging and diseases. Exercise is a well-recognized, nonpharmacological approach to promote muscle protein turnover rates. Over the past decades, we have acquired substantial knowledge of molecular mechanisms of muscle protein synthesis after exercise. However, there have been considerable gaps in the mechanisms of how muscle protein degradation is regulated at the molecular level. The main challenge to understand muscle protein degradation is due in part to the lack of solid stable isotope tracer methodology to measure muscle protein degradation rate. Understanding the mechanisms of UPS with the concomitant measurement of protein degradation rate in skeletal muscle will help identify novel therapeutic strategies to ameliorate impaired protein turnover and protein quality control in aging and diseases. Thus, the goal of this present review was to highlight how recent advances in the field may help improve our understanding of exercise-mediated protein degradation. We discuss 1) the emerging roles of protein phosphorylation and ubiquitylation modifications in regulating proteasome-mediated protein degradation after exercise and 2) methodological advances to measure in vivo myofibrillar protein degradation rate using stable isotope tracer methods.
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Affiliation(s)
- Yusuke Nishimura
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Ibrahim Musa
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Lars Holm
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom
| | - Yu-Chiang Lai
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, United Kingdom
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16
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Benissan-Messan DZ, Zhu H, Zhong W, Tan T, Ma J, Lee PHU. Multi-Cellular Functions of MG53 in Muscle Calcium Signaling and Regeneration. Front Physiol 2020; 11:583393. [PMID: 33240103 PMCID: PMC7677405 DOI: 10.3389/fphys.2020.583393] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/09/2020] [Indexed: 12/28/2022] Open
Abstract
Since its identification in 2009, multiple studies have indicated the importance of MG53 in muscle physiology. The protein is produced in striated muscles but has physiologic implications reaching beyond the confines of striated muscles. Roles in muscle regeneration, calcium homeostasis, excitation-contraction coupling, myogenesis, and the mitochondria highlight the protein’s wide-reaching impact. Numerous therapeutic applications could potentially emerge from these physiologic roles. This review summarizes the current literature regarding the role of MG53 in the skeletal muscle. Therapeutic applications are discussed.
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Affiliation(s)
| | - Hua Zhu
- Department of Surgery, The Ohio State University, Columbus, OH, United States
| | - Weina Zhong
- Department of Surgery, The Ohio State University, Columbus, OH, United States
| | - Tao Tan
- Department of Surgery, The Ohio State University, Columbus, OH, United States
| | - Jianjie Ma
- Department of Surgery, The Ohio State University, Columbus, OH, United States
| | - Peter H U Lee
- Department of Surgery, The Ohio State University, Columbus, OH, United States.,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, United States.,Department of Cardiothoracic Surgery, Southcoast Health, Fall River, MA, United States
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17
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Jiang W, Liu M, Gu C, Ma H. The Pivotal Role of Mitsugumin 53 in Cardiovascular Diseases. Cardiovasc Toxicol 2020; 21:2-11. [PMID: 33006052 DOI: 10.1007/s12012-020-09609-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/23/2020] [Indexed: 12/28/2022]
Abstract
The MG53 (also known as TRIM72) is a conserved, muscle-specific tripartite motif family protein that is abundantly expressed in cardiac or skeletal muscle and present in circulation. Recently, the MG53 had been hypothesized to serve a dual role in the heart: involving in repairing cell membranes that protect myocardial function while acting as an E3 ligase to trigger insulin resistance and cardiovascular complications. This review discusses the roles of MG53 in cardiac physiological function with emphasis on MG53 protective function in the heart and its negative impact on the myocardium due to the continuous elevation of MG53. Besides, this work reviewed the significance of MG53 as a potential therapeutic in human cardiovascular diseases. Despite the expression of MG53 being rare in the human, thus exogenous MG53 can potentially be a new treatment for human cardiovascular diseases. Notably, the specific mechanism of MG53 in cardiovascular diseases remains elusive.
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Affiliation(s)
- Wenhua Jiang
- Institute of Medical Research, Northweastern Polytechnical University, Xi'an, 710072, People's Republic of China
| | - Manling Liu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, People's Republic of China
| | - Chunhu Gu
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, People's Republic of China.
| | - Heng Ma
- Institute of Medical Research, Northweastern Polytechnical University, Xi'an, 710072, People's Republic of China.
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18
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Mannelli LDC, Micheli L, Lucarini E, Parisio C, Toti A, Tenci B, Zanardelli M, Branca JJV, Pacini A, Ghelardini C. Effects of the Combination of β-Hydroxy-β-Methyl Butyrate and R(+) Lipoic Acid in a Cellular Model of Sarcopenia. Molecules 2020; 25:E2117. [PMID: 32366049 PMCID: PMC7249096 DOI: 10.3390/molecules25092117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/01/2020] [Accepted: 04/27/2020] [Indexed: 12/25/2022] Open
Abstract
: Sarcopenia is a clinical problem associated with several pathological and non-pathological conditions. The aim of the present research is the evaluation of the pharmacological profile of the leucine metabolite β-hydroxy-β-methyl butyrate (HMB) associated with the natural R(+) stereoisomer of lipoic acid (R(+)LA) in a cellular model of muscle wasting. The C2C12 cell line is used as myoblasts or is differentiated in myotubes, sarcopenia is induced by dexamethasone (DEX). A Bonferroni significant difference procedure is used for a post hoc comparison. DEX toxicity (0.01-300 µM concentration range) is evaluated in myoblasts to measure cell viability and caspase 3 activation after 24 h and 48 h; cell incubation with 1 µM DEX for 48 h is chosen as optimal treatment for decreasing cell viability and increasing caspase 3 activity. R(+)LA or HMB significantly prevents DEX-induced cell mortality; the efficacy is improved when 100 µM R(+)LA is combined with 1 mM HMB. Regarding myoblasts, this combination significantly reduces DEX-evoked O2- production and protein oxidative damage. During the early phase of myotube formation, the mixture preserves the number of myogenin-positive cells, whereas it completely prevents the DEX-dependent damage in a later phase of myotube differentiation (7 days), as evaluated by cell diameter and percentage of multinucleated cells. R(+)LA in association with HMB is suggested for sarcopenia therapy.
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Affiliation(s)
- Lorenzo Di Cesare Mannelli
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
| | - Laura Micheli
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
| | - Elena Lucarini
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
| | - Carmen Parisio
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
| | - Alessandra Toti
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
| | - Barbara Tenci
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
| | - Matteo Zanardelli
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
| | - Jacopo Junio Valerio Branca
- Department of Experimental and Clinical Medicine, Anatomy Section, University of Florence, Largo Brambilla 3, 50134 Florence, Italy; (J.J.V.B.); (A.P.)
| | - Alessandra Pacini
- Department of Experimental and Clinical Medicine, Anatomy Section, University of Florence, Largo Brambilla 3, 50134 Florence, Italy; (J.J.V.B.); (A.P.)
| | - Carla Ghelardini
- Department of Neurosciences, Psychology, Drug Research and Child Health-Neurofarba-Pharmacology and Toxicology Section, University of Florence. Viale Pieraccini 6, 50139 Florence, Italy; (L.M.); (E.L.); (C.P.); (A.T.); (B.T.); (M.Z.); (C.G.)
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19
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Adesanya TMA, Russell M, Park KH, Zhou X, Sermersheim MA, Gumpper K, Koenig SN, Tan T, Whitson BA, Janssen PML, Lincoln J, Zhu H, Ma J. MG 53 Protein Protects Aortic Valve Interstitial Cells From Membrane Injury and Fibrocalcific Remodeling. J Am Heart Assoc 2020; 8:e009960. [PMID: 30741589 PMCID: PMC6405656 DOI: 10.1161/jaha.118.009960] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background The aortic valve of the heart experiences constant mechanical stress under physiological conditions. Maladaptive valve injury responses contribute to the development of valvular heart disease. Here, we test the hypothesis that MG 53 (mitsugumin 53), an essential cell membrane repair protein, can protect valvular cells from injury and fibrocalcific remodeling processes associated with valvular heart disease. Methods and Results We found that MG 53 is expressed in pig and human patient aortic valves and observed aortic valve disease in aged Mg53-/- mice. Aortic valves of Mg53-/- mice showed compromised cell membrane integrity. In vitro studies demonstrated that recombinant human MG 53 protein protects primary valve interstitial cells from mechanical injury and that, in addition to mediating membrane repair, recombinant human MG 53 can enter valve interstitial cells and suppress transforming growth factor-β-dependent activation of fibrocalcific signaling. Conclusions Together, our data characterize valve interstitial cell membrane repair as a novel mechanism of protection against valvular remodeling and assess potential in vivo roles of MG 53 in preventing valvular heart disease.
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Affiliation(s)
- T M Ayodele Adesanya
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | - Melanie Russell
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | - Ki Ho Park
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | - Xinyu Zhou
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | | | - Kristyn Gumpper
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | - Sara N Koenig
- 2 Department of Physiology and Cell Biology The Ohio State University Wexner Medical Center Columbus OH
| | - Tao Tan
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | - Bryan A Whitson
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | - Paul M L Janssen
- 2 Department of Physiology and Cell Biology The Ohio State University Wexner Medical Center Columbus OH
| | - Joy Lincoln
- 3 Center for Cardiovascular Research The Research Institute at Nationwide Children's Hospital Columbus OH
| | - Hua Zhu
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
| | - Jianjie Ma
- 1 Department of Surgery The Ohio State University Wexner Medical Center Columbus OH
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20
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Xu L, Wang H, Jiang F, Sun H, Zhang D. LncRNA AK045171 protects the heart from cardiac hypertrophy by regulating the SP1/MG53 signalling pathway. Aging (Albany NY) 2020; 12:3126-3139. [PMID: 32087602 PMCID: PMC7066930 DOI: 10.18632/aging.102668] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 12/24/2019] [Indexed: 12/15/2022]
Abstract
Hearts often undergo abnormal remodelling and hypertrophic growth in response to pathological stress. Long non-coding RNAs (LncRNAs) can change cardiac function and participate in regulation of cardiac hypertrophy. The present study aims to identify the role of AK045171 in cardiac hypertrophy and the underlying mechanism in hypertrophic cascades. Mice with cardiac hypertrophy were established through transverse aortic constriction (TAC). Cardiac hypertrophy in cardiomyocytes was induced by angiotensin II (angII). The expression of AK045171 and its target gene SP1 was examined in cardiomyocytes transfected with miRNA. The AK045171 expression level was downregulated in mice after TAC surgery. Overexpression of AK045171 attenuated cardiac hypertrophy both in vitro and in vivo. The mechanism study indicated that AK045171 binds with SP1, which promotes transcription activation of MEG3. It is suggested that overexpression of AK045171 might have clinical potential to suppress cardiac hypertrophy and heart failure.
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Affiliation(s)
- Li Xu
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Hongjiang Wang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Feng Jiang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Hao Sun
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Dapeng Zhang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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21
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Okino R, Usui A, Yoneyama Y, Takahashi SI, Hakuno F. Myoblasts With Higher IRS-1 Levels Are Eliminated From the Normal Cell Layer During Differentiation. Front Endocrinol (Lausanne) 2020; 11:96. [PMID: 32180762 PMCID: PMC7059307 DOI: 10.3389/fendo.2020.00096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 02/14/2020] [Indexed: 12/14/2022] Open
Abstract
Insulin receptor substrate (IRS)-1 is a major substrate of insulin-like growth factor (IGF)-I receptors. It is well-known that IGF-I and II play essential roles in myogenesis progression. Herein, we report an unexpected phenomenon that IRS-1-overexpressing L6 myoblasts are eliminated from normal cell layers at the beginning of differentiation. Initially, the IRS protein level and apoptosis were examined during myogenic differentiation in L6 myoblasts. We found that the IRS-1 protein level decreased, whereas active caspase 3 increased around 1 day after induction of differentiation. The addition of a pan-caspase inhibitor, Z-VAD-FMK, inhibited differentiation-induced suppression of the IRS-1 protein level. Apoptosis was not enhanced in L6 myoblasts stably expressing high levels of IRS-1 (L6-IRS-1). However, when L6-IRS-1 was cultured with control cells (L6-mock), we observed that L6-IRS-1 was eliminated from the cell layer. We have recently reported that, in L6-IRS-1, internalization of the IGF-I receptor was delayed and IGF signal activation was sustained for a longer period than in L6-mock. When cells stably expressing IRS-1 3YA mutant, which could not maintain the IGF signals, were cultured with normal cells, elimination from the cell layer was not detected. These data suggested that the high level of IRS-1 in myoblasts induces elimination from the cell layer due to abnormal sustainment of IGF-I receptor activation.
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Affiliation(s)
- Ryosuke Okino
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ami Usui
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yosuke Yoneyama
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shin-Ichiro Takahashi
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Fumihiko Hakuno
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
- Laboratory of Cell Regulation, Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
- *Correspondence: Fumihiko Hakuno
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22
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Fillmore N, Casin KM, Sinha P, Sun J, Ma H, Boylston J, Noguchi A, Liu C, Wang N, Zhou G, Kohr MJ, Murphy E. A knock-in mutation at cysteine 144 of TRIM72 is cardioprotective and reduces myocardial TRIM72 release. J Mol Cell Cardiol 2019; 136:95-101. [PMID: 31536744 PMCID: PMC7000244 DOI: 10.1016/j.yjmcc.2019.09.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/27/2019] [Accepted: 09/01/2019] [Indexed: 11/20/2022]
Abstract
TRIM72 is a membrane repair protein that protects against ischemia reperfusion (I/R) injury. We previously identified Cys144 (C144) on TRIM72 as a site of S-nitrosylation. To study the importance of C144, we generated a knock-in mouse with C144 mutated to a serine (TRIM72 C144S). We subjected ex vivo perfused mouse hearts to 20 min of ischemia followed by 90 min of reperfusion and observed less injury in TRIM72 C144S compared to WT hearts. Infarct size was smaller (54 vs 27% infarct size) and cardiac functional recovery (37 vs 62% RPP) was higher for the TRIM72 C144S mouse hearts. We also demonstrated that TRIM72 C144S hearts were protected against I/R injury using an in vivo LAD occlusion model. As TRIM72 has been reported to be released from muscle we tested whether C144 is involved in TRIM72 release. After I/R there was significantly less TRIM72 in the perfusate normalized to total released protein from the TRIM72 C144S compared to WT hearts, suggesting that C144 of TRIM72 regulates myocardial TRIM72 release during I/R injury. In addition to TRIM72's protective role in I/R injury, TRIM72 has also been implicated in cardiac hypertrophy and insulin resistance, and secreted TRIM72 has recently been shown to impair insulin sensitivity. However, insulin sensitivity (measured by glucose and insulin tolerance) of TRIM72 C144S mice was not impaired. Further, whole body metabolism, as measured using metabolic cages, was not different in WT vs TRIM72 C144S mice and we did not observe enhanced cardiac hypertrophy in the TRIM72 C144S mice. In agreement, protein levels of the TRIM72 ubiquitination targets insulin receptor β, IRS1, and focal adhesion kinase were similar between WT and TRIM72 C144S hearts. Overall, these data indicate that mutation of TRIM72 C144 is protective during I/R and reduces myocardial TRIM72 release without impairing insulin sensitivity or enhancing the development of hypertrophy.
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Affiliation(s)
- Natasha Fillmore
- Laboratory of Cardiac Physiology, NHLBI, NIH, Bethesda, MD, United States of America
| | - Kevin M Casin
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Prithvi Sinha
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Junhui Sun
- Laboratory of Cardiac Physiology, NHLBI, NIH, Bethesda, MD, United States of America
| | - Hanley Ma
- Laboratory of Cardiac Physiology, NHLBI, NIH, Bethesda, MD, United States of America
| | - Jennifer Boylston
- Laboratory of Cardiac Physiology, NHLBI, NIH, Bethesda, MD, United States of America
| | - Audrey Noguchi
- Murine Phenotyping Core, NHLBI, NIH, Bethesda, MD, United States of America
| | - Chengyu Liu
- Transgenic Core, NHLBI, NIH, Bethesda, MD, United States of America
| | - Nadan Wang
- Cardiovascular Physiology and Surgery Core, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America
| | - Guangshuo Zhou
- Cardiovascular Physiology and Surgery Core, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America
| | - Mark J Kohr
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America.
| | - Elizabeth Murphy
- Laboratory of Cardiac Physiology, NHLBI, NIH, Bethesda, MD, United States of America.
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23
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Ohno Y, Egawa T, Yokoyama S, Fujiya H, Sugiura T, Ohira Y, Yoshioka T, Goto K. MENS-associated increase of muscular protein content via modulation of caveolin-3 and TRIM72. Physiol Res 2019; 68:265-273. [PMID: 30628834 DOI: 10.33549/physiolres.933992] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Microcurrent electrical neuromuscular stimulation (MENS) is known as an extracellular stimulus for the regeneration of injured skeletal muscle in sports medicine. However, the effects of MENS-associated increase in muscle protein content are not fully clarified. The purpose of this study was to investigate the effects of MENS on the muscular protein content, intracellular signals, and the expression level of caveolin-3 (Cav-3), tripartite motif-containing 72 (TRIM72) and MM isoenzyme of creatine kinase (CK-MM) in skeletal muscle using cell culture system. C2C12 myotubes on the 7th day of differentiation phase were treated with MENS (intensity: 10-20 microA, frequency: 0.3 Hz, pulse width: 250 ms, stimulation time: 15-120 min). MENS-associated increase in the protein content of myotubes was observed, compared to the untreated control level. MENS upregulated the expression of Cav-3, TRIM72, and CK-MM in myotubes. A transient increase in phosphorylation level of Akt was also observed. However, MENS had no effect on the phosphorylation level of p42/44 extracellular signal-regulated kinase-1/2 and 5'AMP-activated protein kinase. MENS may increase muscle protein content accompanied with a transient activation of Akt and the upregulation of Cav-3 and TRIM72.
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Affiliation(s)
- Y Ohno
- Department of Physiology, Graduate School of Health Sciences, Toyohashi SOZO University, Aichi, Japan.
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24
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Lang F, Khaghani S, Türk C, Wiederstein JL, Hölper S, Piller T, Nogara L, Blaauw B, Günther S, Müller S, Braun T, Krüger M. Single Muscle Fiber Proteomics Reveals Distinct Protein Changes in Slow and Fast Fibers during Muscle Atrophy. J Proteome Res 2018; 17:3333-3347. [DOI: 10.1021/acs.jproteome.8b00093] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Franziska Lang
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
| | - Solmaz Khaghani
- Max Planck Institute for Heart and Lung Research, Ludwigstr. 43, 61231 Bad Nauheim, Germany
| | - Clara Türk
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
| | - Janica Lea Wiederstein
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
| | - Soraya Hölper
- Sanofi-Aventis Deutschland GmbH, Biologics Research, Protein Therapeutics, Industriepark Höchst, 65926 Frankfurt, Germany
| | - Tanja Piller
- Institute of Biochemistry II, Goethe University Medical School, 60590 Frankfurt, Germany
| | - Leonardo Nogara
- Venetian Institute of Molecular Medicine (VIMM), Department of Biomedical Sciences Padova, University of Padova, 2-35129 Padova, Italy
| | - Bert Blaauw
- Venetian Institute of Molecular Medicine (VIMM), Department of Biomedical Sciences Padova, University of Padova, 2-35129 Padova, Italy
| | - Stefan Günther
- Max Planck Institute for Heart and Lung Research, Ludwigstr. 43, 61231 Bad Nauheim, Germany
| | - Stefan Müller
- Center for Molecular Medicine (CMMC), University of Cologne, 50931 Cologne, Germany
| | - Thomas Braun
- Max Planck Institute for Heart and Lung Research, Ludwigstr. 43, 61231 Bad Nauheim, Germany
| | - Marcus Krüger
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
- Center for Molecular Medicine (CMMC), University of Cologne, 50931 Cologne, Germany
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25
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Park JS, Lee H, Choi BW, Ro S, Lee D, Na JE, Hong JH, Lee JS, Kim BW, Ko YG. An MG53-IRS1-interaction disruptor ameliorates insulin resistance. Exp Mol Med 2018; 50:1-12. [PMID: 29884820 PMCID: PMC5994830 DOI: 10.1038/s12276-018-0099-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 03/08/2018] [Accepted: 03/16/2018] [Indexed: 12/24/2022] Open
Abstract
Mitsugumin 53 (MG53) is an E3 ligase that induces insulin receptor substrate-1 (IRS-1) ubiquitination and degradation in skeletal muscle. We previously demonstrated that the pharmaceutical disruption of the MG53-IRS-1 interaction improves insulin sensitivity by abrogating IRS-1 ubiquitination and increasing IRS-1 levels in C2C12 myotubes. Here, we developed a novel MG53-IRS-1 interaction disruptor (MID-00935) that ameliorates insulin resistance in diet-induced obese (DIO) mice. MID-00935 disrupted the molecular interaction of MG53 and IRS-1, abrogated MG53-induced IRS-1 ubiquitination and degradation and improved insulin signaling in C2C12 myotubes. Oral administration of MID-00935 increased insulin-induced IRS-1, Akt, and Erk phosphorylation via increasing IRS-1 levels in the skeletal muscle of DIO mice. In DIO mice, MID-00935 treatment lowered fasting blood glucose levels and improved glucose disposal in glucose and insulin tolerance tests. These results suggest that MID-00935 may be a potential muscle-targeting drug candidate for treating insulin resistance.
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Affiliation(s)
- Jun Sub Park
- Division of Life Sciences, Korea University, Seoul, Korea.,Tunneling Nanotube Research Center, Korea University, Seoul, Korea
| | - Hyun Lee
- Division of Life Sciences, Korea University, Seoul, Korea.,Tunneling Nanotube Research Center, Korea University, Seoul, Korea
| | - Bo Woon Choi
- Division of Life Sciences, Korea University, Seoul, Korea.,Tunneling Nanotube Research Center, Korea University, Seoul, Korea
| | - Seonggu Ro
- CrystalGenomics, Inc., Seongnam-si, Gyeonggi-do, Korea
| | - Doyoung Lee
- CrystalGenomics, Inc., Seongnam-si, Gyeonggi-do, Korea
| | - Jeong Eun Na
- CrystalGenomics, Inc., Seongnam-si, Gyeonggi-do, Korea
| | - Jeoung-Ho Hong
- Division of Life Sciences, Korea University, Seoul, Korea.,Tunneling Nanotube Research Center, Korea University, Seoul, Korea
| | - Jae-Seon Lee
- Department of Molecular Medicine, College of Medicine, INHA University, Incheon, Korea
| | - Bong-Woo Kim
- Division of Life Sciences, Korea University, Seoul, Korea. .,Tunneling Nanotube Research Center, Korea University, Seoul, Korea.
| | - Young-Gyu Ko
- Division of Life Sciences, Korea University, Seoul, Korea. .,Tunneling Nanotube Research Center, Korea University, Seoul, Korea.
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26
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Fortes MAS, Scervino MVM, Marzuca-Nassr GN, Vitzel KF, da Justa Pinheiro CH, Curi R. Hypertrophy Stimulation at the Onset of Type I Diabetes Maintains the Soleus but Not the EDL Muscle Mass in Wistar Rats. Front Physiol 2017; 8:830. [PMID: 29123487 PMCID: PMC5662641 DOI: 10.3389/fphys.2017.00830] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 10/06/2017] [Indexed: 12/17/2022] Open
Abstract
Diabetes mellitus induces a reduction in skeletal muscle mass and strength. Strength training is prescribed as part of treatment since it improves glycemic control and promotes increase of skeletal muscle mass. The mechanisms involved in overload-induced muscle hypertrophy elicited at the establishment of the type I diabetic state was investigated in Wistar rats. The purpose was to examine whether the overload-induced hypertrophy can counteract the hypotrophy associated to the diabetic state. The experiments were performed in oxidative (soleus) or glycolytic (EDL) muscles. PI3K/Akt/mTOR protein synthesis pathway was evaluated 7 days after overload-induced hypertrophy of soleus and of EDL muscles. The mRNA expression of genes associated with different signaling pathways that control muscle hypertrophy was also evaluated: mechanotransduction (FAK), Wnt/β-catenin, myostatin, and follistatin. The soleus and EDL muscles when submitted to overload had similar hypertrophic responses in control and diabetic animals. The increase of absolute and specific twitch and tetanic forces had the same magnitude as muscle hypertrophic response. Hypertrophy of the EDL muscle from diabetic animals mostly involved mechanical loading-stimulated PI3K/Akt/mTOR pathway besides the reduced activation of AMP-activated protein kinase (AMPK) and decrease of myostatin expression. Hypertrophy was more pronounced in the soleus muscle of diabetic animals due to a more potent activation of rpS6 and increased mRNA expression of insulin-like growth factor-1 (IGF-1), mechano-growth factor (MGF) and follistatin, and decrease of myostatin, MuRF-1 and atrogin-1 contents. The signaling changes enabled the soleus muscle mass and force of the diabetic rats to reach the values of the control group.
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Affiliation(s)
- Marco A S Fortes
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Maria V M Scervino
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Gabriel N Marzuca-Nassr
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Department of Internal Medicine, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Kaio F Vitzel
- School of Health Sciences, College of Health, Massey University, Albany, New Zealand
| | - Carlos H da Justa Pinheiro
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rui Curi
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
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27
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Hu X, Xiao RP. MG53 and disordered metabolism in striated muscle. Biochim Biophys Acta Mol Basis Dis 2017; 1864:1984-1990. [PMID: 29017896 DOI: 10.1016/j.bbadis.2017.10.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 10/06/2017] [Accepted: 10/06/2017] [Indexed: 12/25/2022]
Abstract
MG53 is a member of tripartite motif family (TRIM) that expressed most abundantly in striated muscle. Using rodent models, many studies have demonstrated the MG53 not only facilitates membrane repair after ischemia reperfusion injury, but also contributes to the protective effects of both pre- and post-conditioning. Recently, however, it has been shown that MG53 participates in the regulation of many metabolic processes, especially insulin signaling pathway. Thus, sustained overexpression of MG53 may contribute to the development of various metabolic disorders in striated muscle. In this review, using cardiac muscle as an example, we will discuss muscle metabolic disturbances associated with diabetes and the current understanding of the underlying molecular mechanisms; in particular, the pathogenesis of diabetic cardiomyopathy. We will focus on the pathways that MG53 regulates and how the dysregulation of MG53 leads to metabolic disorders, thereby establishing a causal relationship between sustained upregulation of MG53 and the development of muscle insulin resistance and metabolic disorders. This article is part of a Special issue entitled Cardiac adaptations to obesity, diabetes and insulin resistance, edited by Professors Jan F.C. Glatz, Jason R.B. Dyck and Christine Des Rosiers.
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Affiliation(s)
- Xinli Hu
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Beijing City Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Rui-Ping Xiao
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Beijing City Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China.
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28
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Heart Failure and MEF2 Transcriptome Dynamics in Response to β-Blockers. Sci Rep 2017; 7:4476. [PMID: 28667250 PMCID: PMC5493616 DOI: 10.1038/s41598-017-04762-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 05/19/2017] [Indexed: 01/12/2023] Open
Abstract
Myocyte Enhancer Factor 2 (MEF2) mediates cardiac remodelling in heart failure (HF) and is also a target of β-adrenergic signalling, a front-line treatment for HF. We identified global gene transcription networks involved in HF with and without β-blocker treatment. Experimental HF by transverse aortic constriction (TAC) in a MEF2 “sensor” mouse model (6 weeks) was followed by four weeks of β-blockade with Atenolol (AT) or Solvent (Sol) treatment. Transcriptome analysis (RNA-seq) from left ventricular RNA samples and MEF2A depleted cardiomyocytes was performed. AT treatment resulted in an overall improvement in cardiac function of TAC mice and repression of MEF2 activity. RNA-seq identified 65 differentially expressed genes (DEGs) due to TAC treatment with enriched GO clusters including the inflammatory system, cell migration and apoptosis. These genes were mapped against DEGs in cardiomyocytes in which MEF2A expression was suppressed. Of the 65 TAC mediated DEGs, AT reversed the expression of 28 mRNAs. Rarres2 was identified as a novel MEF2 target gene that is upregulated with TAC in vivo and isoproterenol treatment in vitro which may have implications in cardiomyocyte apoptosis and hypertrophy. These studies identify a cohort of genes with vast potential for disease diagnosis and therapeutic intervention in heart failure.
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29
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Yang S, Zhao H, Xu K, Qian Y, Wu M, Yang T, Chen Y, Zhao X, Chen J, Wen J, Hu Z, Gu HF, Shen H, Shen C. Evaluation of common variants in MG53 and the risk of type 2 diabetes and insulin resistance in Han Chinese. SPRINGERPLUS 2017; 5:612. [PMID: 28443211 PMCID: PMC5395513 DOI: 10.1186/s40064-016-2218-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 04/22/2016] [Indexed: 11/10/2022]
Abstract
Abnormally increased skeletal-muscle-specific E3 ubiquitin ligase (MG53) is associated with the inhibition of insulin signalling and insulin resistance (IR) in animal models. Four community-based studies of Han Chinese populations were included in this study to test the association of variants of MG53 and type 2 diabetes (T2D). The results showed that rs7186832 and rs12929077 in MG53 were significantly associated with T2D and impaired fasting glucose (IFG) of females in the discovery-stage case-control study and cohort study respectively of rural population but not in the replication sample of urban population. In rural population, the fasting insulin (mU/L) of the subjects with AA, AG and GG genotypes in rs12929077 were 8.70 ± 8.05, 10.71 ± 11.16 and 13.41 ± 14.26, respectively, and increased linearly in T2D cases without medication treatment (P = 0.04). This variant was significantly associated with HOMA-IR (P = 0.020) and HOMA-IS (P = 0.023). In individuals with IFG, the insulin and HOMA-IR of AG carriers were significantly higher than those of AA carriers. In urban population, after glucose loading, there were significant differences in the 30-min glucose, the area under the curve (AUC) of 30-min glucose and the AUC of 120-min glucose according to the genotypes of rs7186832 and rs12929077 in males but not females. Our findings suggest that MG53 variants might confer risk susceptibility to the development of T2D of females and IR particularly in rural population.
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Affiliation(s)
- Song Yang
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing, 214200 China
| | - Hailong Zhao
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Kuangfeng Xu
- Department of Endocrinology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029 China
| | - Yun Qian
- Department of Chronic Non-communicable Disease Control, Wuxi Center for Disease Control and Prevention, Wuxi, 214023 China
| | - Ming Wu
- Institute of Chronic Disease Control, Center for Disease Control and Prevention of Jiangsu Province, Nanjing, 210009 China
| | - Tao Yang
- Department of Endocrinology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029 China
| | - Yanchun Chen
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing, 214200 China
| | - Xianghai Zhao
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing, 214200 China
| | - Jinfeng Chen
- Department of Clinical Epidemiology, Jiangsu Province Geriatrics Institute, Nanjing, 210024 China
| | - Jinbo Wen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Zhibing Hu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Harvest F Gu
- Department of Molecular Medicine and Surgery, Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska University Hospital, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Hongbing Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Chong Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China.,Department of Clinical Epidemiology, Jiangsu Province Geriatrics Institute, Nanjing, 210024 China
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30
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Zhang Y, Wu HK, Lv F, Xiao RP. MG53: Biological Function and Potential as a Therapeutic Target. Mol Pharmacol 2017; 92:211-218. [DOI: 10.1124/mol.117.108241] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 04/12/2017] [Indexed: 01/11/2023] Open
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31
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Tan T, Ko YG, Ma J. Dual function of MG53 in membrane repair and insulin signaling. BMB Rep 2017; 49:414-23. [PMID: 27174502 PMCID: PMC5070728 DOI: 10.5483/bmbrep.2016.49.8.079] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 12/20/2022] Open
Abstract
MG53 is a member of the TRIM-family protein that acts as a key component of the cell membrane repair machinery. MG53 is also an E3-ligase that ubiquinates insulin receptor substrate-1 and controls insulin signaling in skeletal muscle cells. Since its discovery in 2009, research efforts have been devoted to translate this basic discovery into clinical applications in human degenerative and metabolic diseases. This review article highlights the dual function of MG53 in cell membrane repair and insulin signaling, the mechanism that underlies the control of MG53 function, and the therapeutic value of targeting MG53 function in regenerative medicine. [BMB Reports 2016; 49(8): 414-423]
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Affiliation(s)
- Tao Tan
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Young-Gyu Ko
- Division of Life Sciences, Korea University, Seoul 02841, Korea
| | - Jianjie Ma
- Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
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32
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Lee H, Park JJ, Nguyen N, Park JS, Hong J, Kim SH, Song WY, Kim HJ, Choi K, Cho S, Lee JS, Kim BW, Ko YG. MG53-IRS-1 (Mitsugumin 53-Insulin Receptor Substrate-1) Interaction Disruptor Sensitizes Insulin Signaling in Skeletal Muscle. J Biol Chem 2016; 291:26627-26635. [PMID: 27810898 PMCID: PMC5207173 DOI: 10.1074/jbc.m116.754424] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 11/01/2016] [Indexed: 12/28/2022] Open
Abstract
Mitsugumin 53 (MG53) is an E3 ligase that interacts with and ubiquitinates insulin receptor substrate-1 (IRS-1) in skeletal muscle; thus, an MG53-IRS-1 interaction disruptor (MID), which potentially sensitizes insulin signaling with an elevated level of IRS-1 in skeletal muscle, is an excellent candidate for treating insulin resistance. To screen for an MID, we developed a bimolecular luminescence complementation system using an N-terminal luciferase fragment fused with IRS-1 and a C-terminal luciferase fragment fused with an MG53 C14A mutant that binds to IRS-1 but does not have E3 ligase activity. An MID, which was discovered using the bimolecular luminescence complementation system, disrupted the molecular association of MG53 with IRS-1, thus abolishing MG53-mediated IRS-1 ubiquitination and degradation. Thus, the MID sensitized insulin signaling and increased insulin-elicited glucose uptake with an elevated level of IRS-1 in C2C12 myotubes. These data indicate that this MID holds promise as a drug candidate for treating insulin resistance.
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Affiliation(s)
- Hyun Lee
- From the Division of Life Sciences and
| | | | | | | | - Jin Hong
- From the Division of Life Sciences and
| | | | - Woon Young Song
- the Department of Chemistry, Korea University, Seoul, 02841, Korea
| | - Hak Joong Kim
- the Department of Chemistry, Korea University, Seoul, 02841, Korea
| | - Kwangman Choi
- the Targeted Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Korea, and
| | - Sungchan Cho
- the Targeted Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Korea, and
| | - Jae-Seon Lee
- the Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, 22212, Korea
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33
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Song HI, Yoon MS. PLD1 regulates adipogenic differentiation through mTOR - IRS-1 phosphorylation at serine 636/639. Sci Rep 2016; 6:36968. [PMID: 27872488 PMCID: PMC5181839 DOI: 10.1038/srep36968] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 10/24/2016] [Indexed: 01/08/2023] Open
Abstract
Phospholipase D1 (PLD1) plays a known role in several differentiation processes, but its role in adipogenic differentiation remains unknown. In the present study, we identified PLD1 as a negative regulator of adipogenic differentiation. We showed that PLD activity was downregulated by both 3-Isobutyl-1-methylxanthine (IBMX) and insulin upon induction of differentiation in 3T3-L1 adipogenic cells. In line with this observation, PLD activity decreased in both high fat diet (HFD)-fed mice and ob/ob mice. We also found that differentiation of 3T3-L1 preadipocytes was enhanced by the depletion of PLD1 levels or inhibition of PLD1 activity by VU0155069, a PLD1-specific inhibitor. Conversely, treatment with phosphatidic acid (PA), a PLD product, and overexpression of PLD1 both caused a decrease in adipogenic differentiation. Moreover, the elevated differentiation in PLD1-knockdown 3T3-L1 cells was reduced by either PA treatment or PLD1 expression, confirming negative roles of PLD1 and PA in adipogenic differentiation. Further investigation revealed that PA displaces DEP domain-containing mTOR-interacting protein (DEPTOR) from mTORC1, which subsequently phosphorylates insulin receptor substrate-1 (IRS-1) at serine 636/639 in 3T3-L1 cells. Taken together, our findings provide convincing evidence for a direct role of PLD1 in adipogenic differentiation by regulating IRS-1 phosphorylation at serine 636/639 through DEPTOR displacement and mTOR activation.
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Affiliation(s)
- Hae-In Song
- Department of Molecular Medicine, School of Medicine, Gachon University, Incheon 406-840, Republic of Korea
| | - Mee-Sup Yoon
- Department of Molecular Medicine, School of Medicine, Gachon University, Incheon 406-840, Republic of Korea
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34
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Blazek AD, Paleo BJ, Weisleder N. Plasma Membrane Repair: A Central Process for Maintaining Cellular Homeostasis. Physiology (Bethesda) 2016; 30:438-48. [PMID: 26525343 DOI: 10.1152/physiol.00019.2015] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Plasma membrane repair is a conserved cellular response mediating active resealing of membrane disruptions to maintain homeostasis and prevent cell death and progression of multiple diseases. Cell membrane repair repurposes mechanisms from various cellular functions, including vesicle trafficking, exocytosis, and endocytosis, to mend the broken membrane. Recent studies increased our understanding of membrane repair by establishing the molecular machinery contributing to membrane resealing. Here, we review some of the key proteins linked to cell membrane repair.
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Affiliation(s)
- Alisa D Blazek
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Brian J Paleo
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Noah Weisleder
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio
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35
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Bilodeau PA, Coyne ES, Wing SS. The ubiquitin proteasome system in atrophying skeletal muscle: roles and regulation. Am J Physiol Cell Physiol 2016; 311:C392-403. [DOI: 10.1152/ajpcell.00125.2016] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 06/15/2016] [Indexed: 01/02/2023]
Abstract
Muscle atrophy complicates many diseases as well as aging, and its presence predicts both decreased quality of life and survival. Much work has been conducted to define the molecular mechanisms involved in maintaining protein homeostasis in muscle. To date, the ubiquitin proteasome system (UPS) has been shown to play an important role in mediating muscle wasting. In this review, we have collated the enzymes in the UPS whose roles in muscle wasting have been confirmed through loss-of-function studies. We have integrated information on their mechanisms of action to create a model of how they work together to produce muscle atrophy. These enzymes are involved in promoting myofibrillar disassembly and degradation, activation of autophagy, inhibition of myogenesis as well as in modulating the signaling pathways that control these processes. Many anabolic and catabolic signaling pathways are involved in regulating these UPS genes, but none appear to coordinately regulate a large number of these genes. A number of catabolic signaling pathways appear to instead function by inhibition of the insulin/IGF-I/protein kinase B anabolic pathway. This pathway is a critical determinant of muscle mass, since it can suppress key ubiquitin ligases and autophagy, activate protein synthesis, and promote myogenesis through its downstream mediators such as forkhead box O, mammalian target of rapamycin, and GSK3β, respectively. Although much progress has been made, a more complete inventory of the UPS genes involved in mediating muscle atrophy, their mechanisms of action, and their regulation will be useful for identifying novel therapeutic approaches to this important clinical problem.
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Affiliation(s)
- Philippe A. Bilodeau
- Department of Medicine, McGill University and Research Institute of the McGill University Health Center, Montreal, Quebec, Canada; and
| | - Erin S. Coyne
- Department of Biochemistry, McGill University and Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Simon S. Wing
- Department of Medicine, McGill University and Research Institute of the McGill University Health Center, Montreal, Quebec, Canada; and
- Department of Biochemistry, McGill University and Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
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36
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Yang XD, Xiang DX, Yang YY. Role of E3 ubiquitin ligases in insulin resistance. Diabetes Obes Metab 2016; 18:747-54. [PMID: 27097743 DOI: 10.1111/dom.12677] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/09/2016] [Accepted: 04/17/2016] [Indexed: 12/19/2022]
Abstract
E3 ubiquitin ligases are a large family of proteins that catalyse the ubiquitination of many proteins for degradation by the 26S proteasome. E3 ubiquitin ligases play pivotal roles in the process of insulin resistance and diabetes. In this review, we summarize the currently available studies to analyse the potential role of E3 ubiquitin ligases in the development of insulin resistance. We propose two mechanisms by which E3 ubiquitin ligases can affect the process of insulin resistance. First, E3 ubiquitin ligases directly degrade the insulin receptor, insulin receptor substrate and other key insulin signalling molecules via the UPS. Second, E3 ubiquitin ligases indirectly regulate insulin signalling by regulating pro-inflammatory mediators that are involved in the regulation of insulin signalling molecules, such as tumour necrosis factor-α, interleukin (IL)-6, IL-4, IL-13, IL-1β, monocyte chemoattractant protein-1 and hypoxia-inducible factor 1α. Determining the mechanism by which E3 ubiquitin ligases affect the development of insulin resistance can identify a novel strategy to protect against insulin resistance and diabetes.
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Affiliation(s)
- X-D Yang
- Department of Pharmacy, the Second Xiangya Hospital, Central South University, Changsha, China
| | - D-X Xiang
- Department of Pharmacy, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Y-Y Yang
- Department of Pharmacy, the Second Xiangya Hospital, Central South University, Changsha, China
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37
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Hong J, Park JS, Lee H, Jeong J, Hyeon Yun H, Yun Kim H, Ko YG, Lee JH. Myosin heavy chain is stabilized by BCL-2 interacting cell death suppressor (BIS) in skeletal muscle. Exp Mol Med 2016; 48:e225. [PMID: 27034027 PMCID: PMC4855277 DOI: 10.1038/emm.2016.2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 12/15/2015] [Accepted: 12/17/2015] [Indexed: 01/09/2023] Open
Abstract
BCL-2 interacting cell death suppressor (BIS), which is ubiquitously expressed, has important roles in various cellular processes, such as apoptosis, the cellular stress response, migration and invasion and protein quality control. In particular, BIS is highly expressed in skeletal and cardiac muscles, and BIS gene mutations result in human myopathy. In this study, we show that mRNA and protein levels of BIS were markedly increased during skeletal myogenesis in C2C12 cells and mouse satellite cells. BIS knockdown did not prevent the early stage of skeletal myogenesis, but did induce muscle atrophy and a decrease in the diameter of myotubes. BIS knockdown significantly suppressed the expression level of myosin heavy chain (MyHC) without changing the expression levels of myogenic marker proteins, such as Mgn, Cav-3 and MG53. In addition, BIS endogenously interacted with MyHC, and BIS knockdown induced MyHC ubiquitination and degradation. From these data, we conclude that molecular association of MyHC and BIS is necessary for MyHC stabilization in skeletal muscle.
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Affiliation(s)
- Jin Hong
- Tunneling Nanotube Research Center, Korea University, Seoul, Republic of Korea.,Division of Life Sciences, Korea University, Seoul, Republic of Korea
| | - Jun-Sub Park
- Tunneling Nanotube Research Center, Korea University, Seoul, Republic of Korea.,Division of Life Sciences, Korea University, Seoul, Republic of Korea
| | - Hyun Lee
- Tunneling Nanotube Research Center, Korea University, Seoul, Republic of Korea.,Division of Life Sciences, Korea University, Seoul, Republic of Korea
| | - Jaemin Jeong
- Department of Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Hye Hyeon Yun
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hye Yun Kim
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young-Gyu Ko
- Tunneling Nanotube Research Center, Korea University, Seoul, Republic of Korea.,Division of Life Sciences, Korea University, Seoul, Republic of Korea
| | - Jeong-Hwa Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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38
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Zhou X, Chen M, Wang S, Yu L, Jiang H. MG53 protein: a promising novel therapeutic target for myocardial ischemia reperfusion injury. Int J Cardiol 2015; 199:424-5. [PMID: 26256685 DOI: 10.1016/j.ijcard.2015.07.084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 07/29/2015] [Indexed: 12/31/2022]
Affiliation(s)
- Xiaoya Zhou
- Department of Cardiology, Renmin Hospital, Wuhan University, Wuhan, Hubei, China
| | - Mingxian Chen
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Songyun Wang
- Department of Cardiology, Renmin Hospital, Wuhan University, Wuhan, Hubei, China
| | - Lilei Yu
- Department of Cardiology, Renmin Hospital, Wuhan University, Wuhan, Hubei, China.
| | - Hong Jiang
- Department of Cardiology, Renmin Hospital, Wuhan University, Wuhan, Hubei, China.
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Nagano H, Yamagishi N, Tomida C, Yano C, Aibara K, Kohno S, Abe T, Ohno A, Hirasaka K, Okumura Y, Mills EM, Nikawa T, Teshima-Kondo S. A novel myogenic function residing in the 5' non-coding region of Insulin receptor substrate-1 (Irs-1) transcript. BMC Cell Biol 2015; 16:8. [PMID: 25887310 PMCID: PMC4373113 DOI: 10.1186/s12860-015-0054-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 02/16/2015] [Indexed: 11/20/2022] Open
Abstract
Background There is evidence that several messenger RNAs (mRNAs) are bifunctional RNAs, i.e. RNA transcript carrying both protein-coding capacity and activity as functional non-coding RNA via 5′ and 3′ untranslated regions (UTRs). Results In this study, we identified a novel bifunctional RNA that is transcribed from insulin receptor substrate-1 (Irs-1) gene with full-length 5′UTR sequence (FL-Irs-1 mRNA). FL-Irs-1 mRNA was highly expressed only in skeletal muscle tissue. In cultured skeletal muscle C2C12 cells, the FL-Irs-1 transcript functioned as a bifunctional mRNA. The FL-Irs-1 transcript produced IRS-1 protein during differentiation of myoblasts into myotubes; however, this transcript functioned as a regulatory RNA in proliferating myoblasts. The FL-Irs-1 5′UTR contains a partial complementary sequence to Rb mRNA, which is a critical factor for myogenic differentiation. The overexpression of the 5′UTR markedly reduced Rb mRNA expression, and this reduction was fully dependent on the complementary element and was not compensated by IRS-1 protein. Conversely, knockdown of FL-Irs-1 mRNA increased Rb mRNA expression and enhanced myoblast differentiation into myotubes. Conclusions Our findings suggest that the FL-Irs-1 transcript regulates myogenic differentiation as a regulatory RNA in myoblasts. Electronic supplementary material The online version of this article (doi:10.1186/s12860-015-0054-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hikaru Nagano
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan. .,Facalty of Nutritional Science, Sagami Women's University, Sagamihara, 252-0383, Japan.
| | - Naoko Yamagishi
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Chisato Tomida
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Chiaki Yano
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Kana Aibara
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Shohei Kohno
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Tomoki Abe
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Ayako Ohno
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Katsuya Hirasaka
- Graduate school of Fisheries Science and Environmental Studies, Nagasaki University, Nagasaki, 852-8521, Japan.
| | - Yuushi Okumura
- Facalty of Nutritional Science, Sagami Women's University, Sagamihara, 252-0383, Japan.
| | - Edward M Mills
- Division of Pharmacology/Toxicology, College of Pharmacy, University of Texas at Austin, Austin, Texas.
| | - Takeshi Nikawa
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
| | - Shigetada Teshima-Kondo
- Department of Nutritional Physiology, Institute of Health Biosciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan.
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40
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Liu F, Song R, Feng Y, Guo J, Chen Y, Zhang Y, Chen T, Wang Y, Huang Y, Li CY, Cao C, Zhang Y, Hu X, Xiao RP. Upregulation of MG53 Induces Diabetic Cardiomyopathy Through Transcriptional Activation of Peroxisome Proliferation-Activated Receptor α. Circulation 2015; 131:795-804. [DOI: 10.1161/circulationaha.114.012285] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background—
Diabetic cardiomyopathy, which contributes to >50% diabetic death, is featured by myocardial lipid accumulation, hypertrophy, fibrosis, and cardiac dysfunction. The mechanism underlying diabetic cardiomyopathy is poorly understood. Recent studies have shown that a striated muscle-specific E3 ligase Mitsugumin 53 (MG53, or TRIM72) constitutes a primary causal factor of systemic insulin resistance and metabolic disorders. Although it is most abundantly expressed in myocardium, the biological and pathological roles of MG53 in triggering cardiac metabolic disorders remain elusive.
Methods and Results—
Here we show that cardiac-specific transgenic expression of MG53 induces diabetic cardiomyopathy in mice. Specifically, MG53 transgenic mouse develops severe diabetic cardiomyopathy at 20 weeks of age, as manifested by insulin resistance, compromised glucose uptake, increased lipid accumulation, myocardial hypertrophy, fibrosis, and cardiac dysfunction. Overexpression of MG53 leads to insulin resistant via destabilizing insulin receptor and insulin receptor substrate 1. More importantly, we identified a novel role of MG53 in transcriptional upregulation of peroxisome proliferation-activated receptor alpha and its target genes, resulting in lipid accumulation and lipid toxicity, thereby contributing to diabetic cardiomyopathy.
Conclusions—
Our results suggest that overexpression of myocardial MG53 is sufficient to induce diabetic cardiomyopathy via dual mechanisms involving upregulation of peroxisome proliferation-activated receptor alpha and impairment of insulin signaling. These findings not only reveal a novel function of MG53 in regulating cardiac peroxisome proliferation-activated receptor alpha gene expression and lipid metabolism, but also underscore MG53 as an important therapeutic target for diabetes mellitus and associated cardiomyopathy.
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Affiliation(s)
- Fenghua Liu
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Ruisheng Song
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yuanqing Feng
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Jiaojiao Guo
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yanmin Chen
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yong Zhang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Tao Chen
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yanru Wang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yanyi Huang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Chuan-Yun Li
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Chunmei Cao
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Yan Zhang
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Xinli Hu
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
| | - Rui-ping Xiao
- From Institute of Molecular Medicine (F.L., R.S., Y.F., J.G., Y.Z., Y.W., C.L., C.C., Y.Z., X.H., R.X.), State Key Laboratory of Biomembrane and Membrane Biotechnology (F.L., R.S., Y.F., J.G., Y.C., Y.Z., Y.W., C.C., Y.Z., X.H., R.X.), Biodynamic Optical Imaging Center (T.C., Y.H.), Center for Life Sciences (Y.C., C.L., R.X.), and Beijing City Key Laboratory of Cardiometabolic Molecular Medicine (R.X.), Peking University, Beijing, China
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Mokhonova EI, Avliyakulov NK, Kramerova I, Kudryashova E, Haykinson MJ, Spencer MJ. The E3 ubiquitin ligase TRIM32 regulates myoblast proliferation by controlling turnover of NDRG2. Hum Mol Genet 2015; 24:2873-83. [PMID: 25701873 DOI: 10.1093/hmg/ddv049] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 02/02/2015] [Indexed: 12/14/2022] Open
Abstract
Limb girdle muscular dystrophy 2H is caused by mutations in the gene encoding the E3 ubiquitin ligase, TRIM32. Previously, we generated and characterized a Trim32 knockout mouse (T32KO) that displays both neurogenic and myopathic features. The myopathy in these mice is attributable to impaired muscle growth, associated with satellite cell senescence and premature sarcopenia. This satellite cell senescence is due to accumulation of the SUMO ligase PIASy, a substrate of TRIM32. The goal of this investigation was to identify additional substrates of TRIM32 using 2D fluorescence difference gel electrophoresis (2D-DIGE) in order to further explore its role in skeletal muscle. Because TRIM32 is an E3 ubiquitin ligase, we reasoned that TRIM32's substrates would accumulate in its absence. 2D-DIGE identified 19 proteins that accumulate in muscles from the T32KO mouse. We focused on two of these proteins, NDRG2 and TRIM72, due to their putative roles in myoblast proliferation and myogenesis. Follow-up analysis confirmed that both proteins were ubiquitinated by TRIM32 in vitro; however, only NDRG2 accumulated in skeletal muscle and myoblasts in the absence of TRIM32. NDRG2 overexpression in myoblasts led to reduced cell proliferation and delayed cell cycle withdrawal during differentiation. Thus, we identified NDRG2 as a novel target for TRIM32; these findings further corroborate the hypothesis that TRIM32 is involved in control of myogenic cells proliferation and differentiation.
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Affiliation(s)
| | - Nuraly K Avliyakulov
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | | | | | - Michael J Haykinson
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Melissa J Spencer
- Department of Neurology and Center for Duchenne Muscular Dystrophy at UCLA, Los Angeles, CA, USA and Molecular Biology Institute, UCLA, Los Angeles, CA, USA
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42
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Lim CJ, Jeon JE, Jeong SK, Yoon SJ, Kwon SD, Lim J, Park K, Kim DY, Ahn JK, Kim BW. Growth hormone-releasing peptide-biotin conjugate stimulates myocytes differentiation through insulin-like growth factor-1 and collagen type I. BMB Rep 2015; 48:501-6. [PMID: 25644636 PMCID: PMC4641233 DOI: 10.5483/bmbrep.2015.48.9.258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Indexed: 11/20/2022] Open
Abstract
Based on the potential beneficial effects of growth hormone releasing peptide (GHRP)-6 on muscle functions, a newly synthesized GHRP-6-biotin conjugate was tested on cultured myoblast cells. Increased expression of myogenic marker proteins was observed in GHRP-6-biotin conjugate-treated cells. Additionally, increased expression levels of insulin-like growth factor-1 and collagen type I were observed. Furthermore, GHRP-6-biotin conjugate-treated cells showed increased metabolic activity, as indicated by increased concentrations of energy metabolites, such as ATP and lactate, and increased enzymatic activity of lactate dehydrogenase and creatine kinase. Finally, binding protein analysis suggested few candidate proteins, including desmin, actin, and zinc finger protein 691 as potential targets for GHRP6-biotin conjugate action. These results suggest that the newly synthesized GHRP-6-biotin conjugate has myogenic stimulating activity through, at least in part, by stimulating collagen type I synthesis and several key proteins. Practical applications of the GHRP-6-biotin conjugate could include improving muscle condition. [BMB Reports 2015; 48(9): 501-506]
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Affiliation(s)
- Chae Jin Lim
- Department of Microbiology and Molecular Biology, School of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Korea; Peptide R&D Center, Incospharm Corporation, Daejeon 34141, Korea
| | - Jung Eun Jeon
- CRID Center, NeoPharm Co., Ltd., Daejeon 34037, Korea
| | - Se Kyoo Jeong
- CRID Center, NeoPharm Co., Ltd., Daejeon 34037, Korea
| | - Seok Jeong Yoon
- Peptide R&D Center, Incospharm Corporation, Daejeon 28674, Korea
| | - Seon Deok Kwon
- Peptide R&D Center, Incospharm Corporation, Daejeon 28674, Korea
| | - Jina Lim
- Peptide R&D Center, Incospharm Corporation, Daejeon 28674, Korea
| | - Keedon Park
- Peptide R&D Center, Incospharm Corporation, Daejeon 28674, Korea
| | - Dae Yong Kim
- Departments of Pharmaceutical Science and Engineering, Seowon University, Cheongju 28674, Korea
| | - Jeong Keun Ahn
- Department of Microbiology and Molecular Biology, School of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Korea
| | - Bong-Woo Kim
- Departments of Cosmetic Science & Technology, Seowon University, Cheongju 28674, Korea
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43
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Affiliation(s)
- Zhao V Wang
- From Departments of Internal Medicine (Cardiology) (Z.V.W., J.A.H.) and Molecular Biology (J.A.H.), University of Texas Southwestern Medical Center, Dallas
| | - Joseph A Hill
- From Departments of Internal Medicine (Cardiology) (Z.V.W., J.A.H.) and Molecular Biology (J.A.H.), University of Texas Southwestern Medical Center, Dallas.
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44
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Ohno Y, Sugiura T, Ohira Y, Yoshioka T, Goto K. Loading-associated expression of TRIM72 and caveolin-3 in antigravitational soleus muscle in mice. Physiol Rep 2014; 2:2/12/e12259. [PMID: 25539835 PMCID: PMC4332229 DOI: 10.14814/phy2.12259] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Effects of mechanical loading on the expression level of tripartite motif-containing 72 (TRIM72) and caveolin-3 (Cav-3) in mouse soleus muscle were investigated. Mice were subjected to (1) continuous hindlimb suspension (HS) for 2 weeks followed by 1-week ambulation recovery or (2) functional overloading (FO) on the soleus by cutting the distal tendons of the plantaris and gastrocnemius muscles. Soleus muscle atrophy was induced by 2-week hindlimb suspension (HS). Reloading-associated regrowth of atrophied soleus muscle was observed by 1-week reloading following HS. HS also depressed the expression level of insulin receptor substrate-1 (IRS-1) mRNA, TRIM72, Cav-3, and phosphorylated Akt (p-Akt)/total Akt (t-Akt), but increased the phosphorylated level of p38 mitogen-activated protein kinase (p-p38MAPK) in soleus muscle. Thereafter, the expression level of MyoD mRNA, TRIM72 (mRNA, and protein), and Cav-3 was significantly increased and recovered to the basal level during 1-week reloading after HS. Although IRS-1 expression was also upregulated by reloading, the expression level was significantly lower than that before HS. Significant increase in p-Akt and phosphorylated p70 S6 kinase (p-p70S6K) was observed by 1-day reloading. On the other hand, 1-week functional overloading (FO) induced soleus muscle hypertrophy. In FO-associated hypertrophied soleus muscle, the expression level of IRS-1 mRNA, MyoD mRNA, TRIM72 mRNA, p-Akt, and p-p70S6K was increased, but the expression of Cav-3 and p-p38MAPK was decreased. FO had no effect on the protein expression level of TRIM72. These observations suggest that the loading-associated upregulation of TRIM72 protein in skeletal muscle may depress the regrowth of atrophied muscle via a partial suppression of IRS-1. In addition, downregulation of Cav-3 in skeletal muscle may depress overloading-induced muscle hypertrophy.
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Affiliation(s)
- Yoshitaka Ohno
- Laboratory of Physiology, School of Health Sciences, Toyohashi SOZO University, Toyohashi, 440-8511, Japan
| | - Takao Sugiura
- Faculty of Education, Yamaguchi University, Yamaguchi, 753-8513, Japan
| | - Yoshinobu Ohira
- Faculty and Graduate School of Health and Sports Sciences, Doshisha University, Kyotanabe, 610-0394, Japan
| | | | - Katsumasa Goto
- Laboratory of Physiology, School of Health Sciences, Toyohashi SOZO University, Toyohashi, 440-8511, Japan Department of Physiology, Graduate School of Health Sciences, Toyohashi SOZO University, Toyohashi, 440-8511, Japan
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Treatment of acute lung injury by targeting MG53-mediated cell membrane repair. Nat Commun 2014; 5:4387. [PMID: 25034454 PMCID: PMC4109002 DOI: 10.1038/ncomms5387] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 06/13/2014] [Indexed: 12/27/2022] Open
Abstract
Injury to lung epithelial cells has a role in multiple lung diseases. We previously identified mitsugumin 53 (MG53) as a component of the cell membrane repair machinery in striated muscle cells. Here we show that MG53 also has a physiological role in the lung and may be used as a treatment in animal models of acute lung injury. Mice lacking MG53 show increased susceptibility to ischemia-reperfusion and over-ventilation induced injury to the lung when compared with wild type mice. Extracellular application of recombinant human MG53 (rhMG53) protein protects cultured lung epithelial cells against anoxia/reoxygenation-induced injuries. Intravenous delivery or inhalation of rhMG53 reduces symptoms in rodent models of acute lung injury and emphysema. Repetitive administration of rhMG53 improves pulmonary structure associated with chronic lung injury in mice. Our data indicate a physiological function for MG53 in the lung and suggest that targeting membrane repair may be an effective means for treatment or prevention of lung diseases.
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Hong J, Kim BW, Choo HJ, Park JJ, Yi JS, Yu DM, Lee H, Yoon GS, Lee JS, Ko YG. Mitochondrial complex I deficiency enhances skeletal myogenesis but impairs insulin signaling through SIRT1 inactivation. J Biol Chem 2014; 289:20012-25. [PMID: 24895128 DOI: 10.1074/jbc.m114.560078] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
To address whether mitochondrial biogenesis is essential for skeletal myogenesis, C2C12 myogenesis was investigated after knockdown of NADH dehydrogenase (ubiquintone) flavoprotein 1 (NDUFV1), which is an oxidative phosphorylation complex I subunit that is the first subunit to accept electrons from NADH. The NDUFVI knockdown enhanced C2C12 myogenesis by decreasing the NAD(+)/NADH ratio and subsequently inactivating SIRT1 and SIRT1 activators (pyruvate, SRT1720, and resveratrol) abolished the NDUFV1 knockdown-induced myogenesis enhancement. However, the insulin-elicited activation of insulin receptor β (IRβ) and insulin receptor substrate-1 (IRS-1) was reduced with elevated levels of protein-tyrosine phosphatase 1B after NDUFV1 knockdown in C2C12 myotubes. The NDUFV1 knockdown-induced blockage of insulin signaling was released by protein-tyrosine phosphatase 1B knockdown in C2C12 myotubes, and we found that NDUFV1 or SIRT1 knockdown did not affect mitochondria biogenesis during C2C12 myogenesis. Based on these data, we can conclude that complex I dysfunction-induced SIRT1 inactivation leads to myogenesis enhancement but blocks insulin signaling without affecting mitochondria biogenesis.
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Affiliation(s)
- Jin Hong
- From the Division of Life Sciences, Korea University, Seoul, 136-701, Korea
| | - Bong-Woo Kim
- Department of Cosmetic Science and Technology, Seowon University, Cheongju, 361-742, Korea
| | - Hyo-Jung Choo
- From the Division of Life Sciences, Korea University, Seoul, 136-701, Korea
| | - Jung-Jin Park
- From the Division of Life Sciences, Korea University, Seoul, 136-701, Korea
| | - Jae-Sung Yi
- From the Division of Life Sciences, Korea University, Seoul, 136-701, Korea
| | - Dong-Min Yu
- From the Division of Life Sciences, Korea University, Seoul, 136-701, Korea
| | - Hyun Lee
- From the Division of Life Sciences, Korea University, Seoul, 136-701, Korea
| | - Gye-Soon Yoon
- Department of Biochemistry and Molecular Biology, Ajou University, Suwon 443-721, Korea, and
| | - Jae-Seon Lee
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, 400-712, Korea
| | - Young-Gyu Ko
- From the Division of Life Sciences, Korea University, Seoul, 136-701, Korea,
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47
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MG53-induced IRS-1 ubiquitination negatively regulates skeletal myogenesis and insulin signalling. Nat Commun 2014; 4:2354. [PMID: 23965929 DOI: 10.1038/ncomms3354] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 07/25/2013] [Indexed: 12/12/2022] Open
Abstract
Mitsugumin 53 (MG53) negatively regulates skeletal myogenesis by targeting insulin receptor substrate 1 (IRS-1). Here, we show that MG53 is an ubiquitin E3 ligase that induces IRS-1 ubiquitination with the help of an E2-conjugating enzyme, UBE2H. Molecular manipulations that disrupt the E3-ligase function of MG53 abolish IRS-1 ubiquitination and enhance skeletal myogenesis. Skeletal muscles derived from the MG53-/- mice show an elevated IRS-1 level with enhanced insulin signalling, which protects the MG53-/- mice from developing insulin resistance when challenged with a high-fat/high-sucrose diet. Muscle samples derived from human diabetic patients and mice with insulin resistance show normal expression of MG53, indicating that altered MG53 expression does not serve as a causative factor for the development of metabolic disorders. Thus, therapeutic interventions that target the interaction between MG53 and IRS-1 may be a novel approach for the treatment of metabolic diseases that are associated with insulin resistance.
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Nguyen N, Yi JS, Park H, Lee JS, Ko YG. Mitsugumin 53 (MG53) ligase ubiquitinates focal adhesion kinase during skeletal myogenesis. J Biol Chem 2013; 289:3209-16. [PMID: 24344130 DOI: 10.1074/jbc.m113.525154] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The striated muscle-specific mitsugumin 53 (MG53) is a novel E3 ligase that induces the ubiquitination of insulin receptor substrate 1 (IRS-1) during skeletal myogenesis, negatively regulating insulin-like growth factor and insulin signaling. Here we show that focal adhesion kinase (FAK) is the second target of MG53 during skeletal myogenesis. The FAK protein level gradually decreased, whereas its mRNA level was constant during myogenesis in C2C12 cells and MyoD-overexpressing mouse embryonic fibroblasts. The FAK protein was associated with the E2 enzyme UBE2H and the E3 enzyme MG53 in endogenous and exogenous immunoprecipitation experiments. FAK ubiquitination and degradation was induced by MG53 overexpression in myoblasts but abolished by MG53 or UBE2H knockdown in myotubes. Because RING-disrupted MG53 mutants (C14A and ΔR) did not induce FAK ubiquitination and degradation, the RING domain was determined to be required for MG53-induced FAK ubiquitination. Taken together, these data indicate that MG53 induces FAK ubiquitination with the aid of UBE2H during skeletal myogenesis.
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Affiliation(s)
- Nga Nguyen
- From the Division of Life Sciences, Korea University, Seoul 136-701, Korea
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Levy JR, Campbell KP, Glass DJ. MG53's new identity. Skelet Muscle 2013; 3:25. [PMID: 24175977 PMCID: PMC4177543 DOI: 10.1186/2044-5040-3-25] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 10/21/2013] [Indexed: 11/29/2022] Open
Abstract
Mitsugumin 53 (MG53) is a relatively newly identified tripartite motif-containing (TRIM) family muscle-specific E3 ubiquitin ligase that is expressed in skeletal muscle and the heart. It has been postulated to facilitate repair by targeting the site of an injury, and acting as a scaffold for assembly of a repair complex made up of dysferlin, annexin V, caveolin-3, and polymerase I and transcript release factor (PTRF). A recent letter published in Nature by Song et al. proposes an alternate function for MG53: as an E3 ligase that targets the insulin receptor and insulin receptor substrate 1 (IRS1) for degradation, therefore regulating muscle insulin signaling. This work is exciting, as it not only presents a novel role for MG53, but also suggests that muscle insulin signaling has a systemic influence on insulin resistance and the metabolic syndrome.
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Affiliation(s)
| | | | - David J Glass
- Novartis Institutes for Biomedical Research, 100 Technology Square, Cambridge, MA 02139, USA.
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Ham YM, Mahoney SJ. Compensation of the AKT signaling by ERK signaling in transgenic mice hearts overexpressing TRIM72. Exp Cell Res 2013; 319:1451-62. [PMID: 23567182 DOI: 10.1016/j.yexcr.2013.02.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 02/14/2013] [Accepted: 02/14/2013] [Indexed: 01/15/2023]
Abstract
The AKT and ERK signaling pathways are known to be involved in cell hypertrophy, proliferation, survival and differentiation. Although there is evidence for crosstalk between these two signaling pathways in cellulo, there is less evidence for cross talk in vivo. Here, we show that crosstalk between AKT and ERK signaling in the hearts of TRIM72-overexpressing transgenic mice (TRIM72-Tg) with alpha-MHC promoter regulates and maintains their heart size. TRIM72, a heart- and skeletal muscle-specific protein, downregulates AKT-mTOR signaling via IRS-1 degradation and reduces the size of rat cardiomyocytes and the size of postnatal TRIM72-Tg hearts. TRIM72 expression was upregulated by hypertrophic inducers in cardiomyocytes, while IRS-1 was downregulated by IGF-1. TRIM72 specifically regulated IGF-1-dependent AKT-mTOR signaling, resulting in a reduction of the size of cardiomyocytes. Postnatal TRIM72-Tg hearts were smaller than control-treated hearts with inhibition of AKT-mTOR signaling. However, adult TRIM72-Tg hearts were larger than of control despite the suppression of AKT-mTOR signaling. Activation of ERK, PKC-α, and JNK were observed to be elevated in adult TRIM72-Tg, and these signals were mediated by ET-1 via the ET receptors A and B. Altogether, these results suggest that AKT signaling regulates cardiac hypertrophy in physiological conditions, and ERK signaling compensates for the absence of AKT signaling during TRIM72 overexpression, leading to pathological hypertrophy.
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Affiliation(s)
- Young-Mi Ham
- College of Life Science and Biotechnology, Korea University, Seoul, Republic of Korea.
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