1
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Perico L, Remuzzi G, Benigni A. Sirtuins in kidney health and disease. Nat Rev Nephrol 2024; 20:313-329. [PMID: 38321168 DOI: 10.1038/s41581-024-00806-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2024] [Indexed: 02/08/2024]
Abstract
Sirtuins (SIRTs) are putative regulators of lifespan in model organisms. Since the initial discovery that SIRTs could promote longevity in nematodes and flies, the identification of additional properties of these proteins has led to understanding of their roles as exquisite sensors that link metabolic activity to oxidative states. SIRTs have major roles in biological processes that are important in kidney development and physiological functions, including mitochondrial metabolism, oxidative stress, autophagy, DNA repair and inflammation. Furthermore, altered SIRT activity has been implicated in the pathophysiology and progression of acute and chronic kidney diseases, including acute kidney injury, diabetic kidney disease, chronic kidney disease, polycystic kidney disease, autoimmune diseases and renal ageing. The renoprotective roles of SIRTs in these diseases make them attractive therapeutic targets. A number of SIRT-activating compounds have shown beneficial effects in kidney disease models; however, further research is needed to identify novel SIRT-targeting strategies with the potential to treat and/or prevent the progression of kidney diseases and increase the average human healthspan.
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Affiliation(s)
- Luca Perico
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Ariela Benigni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy.
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2
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Ahmed M, Riaz U, Lv H, Yang L. A Molecular Perspective and Role of NAD + in Ovarian Aging. Int J Mol Sci 2024; 25:4680. [PMID: 38731898 PMCID: PMC11083308 DOI: 10.3390/ijms25094680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
The decline in female fecundity is linked to advancing chronological age. The ovarian reserve diminishes in quantity and quality as women age, impacting reproductive efficiency and the aging process in the rest of the body. NAD+ is an essential coenzyme in cellular energy production, metabolism, cell signaling, and survival. It is involved in aging and is linked to various age-related conditions. Hallmarks associated with aging, diseases, and metabolic dysfunctions can significantly affect fertility by disturbing the delicate relationship between energy metabolism and female reproduction. Enzymes such as sirtuins, PARPs, and CD38 play essential roles in NAD+ biology, which actively consume NAD+ in their enzymatic activities. In recent years, NAD+ has gained much attention for its role in aging and age-related diseases like cancer, Alzheimer's, cardiovascular diseases, and neurodegenerative disorders, highlighting its involvement in various pathophysiological processes. However, its impact on female reproduction is not well understood. This review aims to bridge this knowledge gap by comprehensively exploring the complex interplay between NAD+ biology and female reproductive aging and providing valuable information that could help develop plans to improve women's reproductive health and prevent fertility issues.
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Affiliation(s)
- Mehboob Ahmed
- Hubei Hongshan Laboratory, Wuhan 430070, China; (M.A.); (U.R.); (H.L.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Ministry of Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Umair Riaz
- Hubei Hongshan Laboratory, Wuhan 430070, China; (M.A.); (U.R.); (H.L.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Ministry of Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Haimiao Lv
- Hubei Hongshan Laboratory, Wuhan 430070, China; (M.A.); (U.R.); (H.L.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Ministry of Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Liguo Yang
- Hubei Hongshan Laboratory, Wuhan 430070, China; (M.A.); (U.R.); (H.L.)
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Ministry of Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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3
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Samoilova EM, Romanov SE, Chudakova DA, Laktionov PP. Role of sirtuins in epigenetic regulation and aging control. Vavilovskii Zhurnal Genet Selektsii 2024; 28:215-227. [PMID: 38680178 PMCID: PMC11043508 DOI: 10.18699/vjgb-24-26] [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: 11/12/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 05/01/2024] Open
Abstract
Advances in modern healthcare in developed countries make it possible to extend the human lifespan, which is why maintaining active longevity is becoming increasingly important. After the sirtuin (SIRT) protein family was discovered, it started to be considered as a significant regulator of the physiological processes associated with aging. SIRT has deacetylase, deacylase, and ADP-ribosyltransferase activity and modifies a variety of protein substrates, including chromatin components and regulatory proteins. This multifactorial regulatory system affects many processes: cellular metabolism, mitochondrial functions, epigenetic regulation, DNA repair and more. As is expected, the activity of sirtuin proteins affects the manifestation of classic signs of aging in the body, such as cellular senescence, metabolic disorders, mitochondrial dysfunction, genomic instability, and the disruption of epigenetic regulation. Changes in the SIRT activity in human cells can also be considered a marker of aging and are involved in the genesis of various age-dependent disorders. Additionally, experimental data obtained in animal models, as well as data from population genomic studies, suggest a SIRT effect on life expectancy. At the same time, the diversity of sirtuin functions and biochemical substrates makes it extremely complicated to identify cause-and-effect relationships and the direct role of SIRT in controlling the functional state of the body. However, the SIRT influence on the epigenetic regulation of gene expression during the aging process and the development of disorders is one of the most important aspects of maintaining the homeostasis of organs and tissues. The presented review centers on the diversity of SIRT in humans and model animals. In addition to a brief description of the main SIRT enzymatic and biological activity, the review discusses its role in the epigenetic regulation of chromatin structure, including the context of the development of genome instability associated with aging. Studies on the functional connection between SIRT and longevity, as well as its effect on pathological processes associated with aging, such as chronic inflammation, fibrosis, and neuroinflammation, have been critically analyzed.
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Affiliation(s)
- E M Samoilova
- Novosibirsk State University, Novosibirsk, Russia Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, Moscow, Russia
| | - S E Romanov
- Novosibirsk State University, Novosibirsk, Russia Institute of Molecular and Cellular Biology of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - D A Chudakova
- Federal Center of Brain Research and Neurotechnologies of the Federal Medical Biological Agency of Russia, Moscow, Russia
| | - P P Laktionov
- Novosibirsk State University, Novosibirsk, Russia Institute of Molecular and Cellular Biology of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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4
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Liu R, Li Y, Zheng Q, Ding M, Zhou H, Li X. Epigenetic modification in liver fibrosis: Promising therapeutic direction with significant challenges ahead. Acta Pharm Sin B 2024; 14:1009-1029. [PMID: 38486982 PMCID: PMC10935124 DOI: 10.1016/j.apsb.2023.10.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/18/2023] [Accepted: 09/13/2023] [Indexed: 03/17/2024] Open
Abstract
Liver fibrosis, characterized by scar tissue formation, can ultimately result in liver failure. It's a major cause of morbidity and mortality globally, often associated with chronic liver diseases like hepatitis or alcoholic and non-alcoholic fatty liver diseases. However, current treatment options are limited, highlighting the urgent need for the development of new therapies. As a reversible regulatory mechanism, epigenetic modification is implicated in many biological processes, including liver fibrosis. Exploring the epigenetic mechanisms involved in liver fibrosis could provide valuable insights into developing new treatments for chronic liver diseases, although the current evidence is still controversial. This review provides a comprehensive summary of the regulatory mechanisms and critical targets of epigenetic modifications, including DNA methylation, histone modification, and RNA modification, in liver fibrotic diseases. The potential cooperation of different epigenetic modifications in promoting fibrogenesis was also highlighted. Finally, available agonists or inhibitors regulating these epigenetic mechanisms and their potential application in preventing liver fibrosis were discussed. In summary, elucidating specific druggable epigenetic targets and developing more selective and specific candidate medicines may represent a promising approach with bright prospects for the treatment of chronic liver diseases.
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Affiliation(s)
- Runping Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Yajing Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Qi Zheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Mingning Ding
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102400, China
| | - Huiping Zhou
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 22460, USA
| | - Xiaojiaoyang Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102400, China
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5
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Liang LL, He MF, Zhou PP, Pan SK, Liu DW, Liu ZS. GSK3β: A ray of hope for the treatment of diabetic kidney disease. FASEB J 2024; 38:e23458. [PMID: 38315453 DOI: 10.1096/fj.202302160r] [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: 10/23/2023] [Revised: 12/09/2023] [Accepted: 01/17/2024] [Indexed: 02/07/2024]
Abstract
Diabetic kidney disease (DKD), a major microvascular complication of diabetes, is characterized by its complex pathogenesis, high risk of chronic renal failure, and lack of effective diagnosis and treatment methods. GSK3β (glycogen synthase kinase 3β), a highly conserved threonine/serine kinase, was found to activate glycogen synthase. As a key molecule of the glucose metabolism pathway, GSK3β participates in a variety of cellular activities and plays a pivotal role in multiple diseases. However, these effects are not only mediated by affecting glucose metabolism. This review elaborates on the role of GSK3β in DKD and its damage mechanism in different intrinsic renal cells. GSK3β is also a biomarker indicating the progression of DKD. Finally, the protective effects of GSK3β inhibitors on DKD are also discussed.
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Affiliation(s)
- Lu-Lu Liang
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Meng-Fei He
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Pan-Pan Zhou
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Shao-Kang Pan
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Dong-Wei Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Zhang-Suo Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
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Zhang T, Ma R, Li Z, Liu T, Yang S, Li N, Wang D. Nur77 alleviates cardiac fibrosis by upregulating GSK-3β transcription during aging. Eur J Pharmacol 2024; 965:176290. [PMID: 38158109 DOI: 10.1016/j.ejphar.2023.176290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 11/23/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Cardiac fibrosis is associated with aging, for which no targeted therapies are available. With aging, the levels of nerve growth factor-induced gene B (Nur77) are reduced during cardiac remodelling; however, its role in cardiac fibrosis in aging remains unclear. Here, we found that Nur77 knockout increased cardiac structure abnormalities, systolic and diastolic dysfunction, cardiac hypertrophy, and fibrotic marker expression in 15-month-old mice. Furthermore, Nur77 deficiency induced collagen type I (Col-1) and α-smooth muscle actin overproduction in transforming growth factor beta (TGF-β) treated H9c2 cells, whereas Nur77 overexpression attenuated this effect. Nur77 deficiency in vivo and in vitro downregulated glycogen synthase kinase (GSK)-3β expression and increased β-catenin activity, while its overexpression increased GSK-3β expression. GSK-3β knockdown counteracted the anti-fibrotic effect of Nur77 on TGF-β-treated H9c2 cells. Chromatin immunoprecipitation and luciferase reporter assay results suggested GSK-3β as the direct target of Nur77. Our findings suggest that Nur77 directly initiates GSK-3β transcription and age-related cardiac fibrosis partly through the GSK-3β/β-catenin pathway. This study proposes a novel mechanism for Nur77 regulating cardiac fibrosis and suggests Nur77 as a target for the prevention and treatment of aging-associated cardiac fibrosis and heart failure.
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Affiliation(s)
- Tiantian Zhang
- Department of Geriatrics, The First Hospital of China Medical University, Shenyang, 110001, Liaoning, People's Republic of China
| | - Ruzhe Ma
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Zhichi Li
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Tingting Liu
- Department of Geriatrics, The First Hospital of China Medical University, Shenyang, 110001, Liaoning, People's Republic of China
| | - Sijia Yang
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Na Li
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Difei Wang
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.
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7
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Lambona C, Zwergel C, Valente S, Mai A. SIRT3 Activation a Promise in Drug Development? New Insights into SIRT3 Biology and Its Implications on the Drug Discovery Process. J Med Chem 2024; 67:1662-1689. [PMID: 38261767 PMCID: PMC10859967 DOI: 10.1021/acs.jmedchem.3c01979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/25/2024]
Abstract
Sirtuins catalyze deacetylation of lysine residues with a NAD+-dependent mechanism. In mammals, the sirtuin family is composed of seven members, divided into four subclasses that differ in substrate specificity, subcellular localization, regulation, as well as interactions with other proteins, both within and outside the epigenetic field. Recently, much interest has been growing in SIRT3, which is mainly involved in regulating mitochondrial metabolism. Moreover, SIRT3 seems to be protective in diseases such as age-related, neurodegenerative, liver, kidney, heart, and metabolic ones, as well as in cancer. In most cases, activating SIRT3 could be a promising strategy to tackle these health problems. Here, we summarize the main biological functions, substrates, and interactors of SIRT3, as well as several molecules reported in the literature that are able to modulate SIRT3 activity. Among the activators, some derive from natural products, others from library screening, and others from the classical medicinal chemistry approach.
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Affiliation(s)
- Chiara Lambona
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Clemens Zwergel
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Sergio Valente
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Antonello Mai
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Pasteur
Institute, Cenci-Bolognetti Foundation, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
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8
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Wei W, Li T, Chen J, Fan Z, Gao F, Yu Z, Jiang Y. SIRT3/6: an amazing challenge and opportunity in the fight against fibrosis and aging. Cell Mol Life Sci 2024; 81:69. [PMID: 38294557 PMCID: PMC10830597 DOI: 10.1007/s00018-023-05093-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/29/2023] [Accepted: 12/09/2023] [Indexed: 02/01/2024]
Abstract
Fibrosis is a typical aging-related pathological process involving almost all organs, including the heart, kidney, liver, lung, and skin. Fibrogenesis is a highly orchestrated process defined by sequences of cellular response and molecular signals mechanisms underlying the disease. In pathophysiologic conditions associated with organ fibrosis, a variety of injurious stimuli such as metabolic disorders, epigenetic changes, and aging may induce the progression of fibrosis. Sirtuins protein is a kind of deacetylase which can regulate cell metabolism and participate in a variety of cell physiological functions. In this review, we outline our current understanding of common principles of fibrogenic mechanisms and the functional role of SIRT3/6 in aging-related fibrosis. In addition, sequences of novel protective strategies have been identified directly or indirectly according to these mechanisms. Here, we highlight the role and biological function of SIRT3/6 focus on aging fibrosis, as well as their inhibitors and activators as novel preventative or therapeutic interventions for aging-related tissue fibrosis.
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Affiliation(s)
- Wenxin Wei
- School of Queen Mary, Nanchang University, Nanchang, 330031, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an, 710032, China.
| | - Jinlong Chen
- School of Chemistry and Chemical Engineering, Nangchang University, 999 Xuefu Rd, Nanchang, 330031, China
| | - Zhen Fan
- The Hospital Affiliated to Shanxi University of Chinese Medicine, Xianyang, 712000, China.
| | - Feng Gao
- Shanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Zhibiao Yu
- School of Chemistry and Chemical Engineering, Nangchang University, 999 Xuefu Rd, Nanchang, 330031, China
| | - Yihao Jiang
- School of Chemistry and Chemical Engineering, Nangchang University, 999 Xuefu Rd, Nanchang, 330031, China.
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Lu K, Li X, Wu J. Sirtuin 3 is required for the dexmedetomidine-mediated alleviation of inflammation and oxidative stress in nephritis. Immun Inflamm Dis 2024; 12:e1135. [PMID: 38270316 PMCID: PMC10777884 DOI: 10.1002/iid3.1135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 11/23/2023] [Accepted: 12/17/2023] [Indexed: 01/26/2024] Open
Abstract
INTRODUCTION Although sirtuin 3 (SIRT3) is known to be involved in dexmedetomidine (DEX)-mediated alleviation of renal ischemia and reperfusion injury, the influence of the association between DEX and SIRT3 on nephritis development remains unclear. In this study, the role of SIRT3 in DEX-mediated amelioration of inflammation and oxidative stress in nephritis as well as the possible underlying mechanism were explored in vivo and in vitro. METHODS An animal model of glomerulonephritis was generated by injecting mice with interferon-alpha (IFNα)-expressing adenoviruses, and periodic acid-Schiff staining was then used to reveal pathogenicity-related changes in the renal tissue. Additionally, human embryonic kidney cells (HEK293) and renal mesangial cells (RMCs) were treated with IFNα to establish cell models of inflammation in vitro. RESULTS DEX administration alleviated glomerulonephritis in the animal model and upregulated SIRT3 expression in the renal tissue. SIRT3 knockdown inhibited the renoprotective effects of DEX against nephritis. IFNα induced inflammation, oxidative stress, and apoptosis in the RMCs and HEK293 cells and reduced their growth, as evidenced by the evaluation of cytokine levels (enzyme-linked immunosorbent assay), reactive oxygen species generation, catalase and superoxide dismutase activities, nuclear factor-erythroid factor 2-related factor 2/heme oxygenase-1 signal transduction, apoptotic cell proportion, and cell viability. In addition to promoting SIRT3 expression, DEX inhibited IFNα-induced inflammation, oxidative stress, and apoptosis in these cells and promoted their viability. SIRT3 knockdown partially reversed the beneficial effects of DEX on RMCs and HEK293 cells. CONCLUSIONS Our results suggest that DEX exhibits renoprotective activity during nephritis progression, protecting renal cells against inflammatory injury by promoting SIRT3 expression.
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Affiliation(s)
- Kai Lu
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Xinlong Li
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of MedicineZhejiang UniversityHangzhouChina
| | - Jie Wu
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of MedicineZhejiang UniversityHangzhouChina
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10
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Wang C, Cui Y, Xu T, Zhou Y, Yang R, Wang T. New insights into glycogen synthase kinase-3: A common target for neurodegenerative diseases. Biochem Pharmacol 2023; 218:115923. [PMID: 37981175 DOI: 10.1016/j.bcp.2023.115923] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
Glycogen synthase kinase 3 (GSK-3) is a highly conserved protein serine/threonine kinase that plays a central role in a wide variety of cellular processes to coordinate catabolic and anabolic pathways and regulate cell growth and fate. There is increasing evidence showing that abnormal glycogen synthase kinase 3 (GSK-3) is associated with the pathogenesis and progression of many disorders, such as cancer, diabetes, psychiatric diseases, and neurodegenerative diseases. In this review, we summarize recent findings about the regulatory role of GSK-3 in the occurrence and development of multiple neurodegenerative diseases, mainly focusing on Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. The aim of this study is to provide new insight into the shared working mechanism of GSK-3 as a therapeutic target of multiple neurodegenerative diseases.
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Affiliation(s)
- Chengfeng Wang
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China; Institute of Brain Sciences and Related Disorders, Qingdao University, Qingdao, Shandong 266071, China
| | - Yu Cui
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Tong Xu
- Department of Otorhinolaryngology Head and Neck, The Affiliated Qingdao Third People's Hospital of Qingdao University, Qingdao, Shandong 266021, China
| | - Yu Zhou
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China; Institute of Brain Sciences and Related Disorders, Qingdao University, Qingdao, Shandong 266071, China; Department of Otorhinolaryngology Head and Neck, The Affiliated Qingdao Third People's Hospital of Qingdao University, Qingdao, Shandong 266021, China; Department of Health and Life Science, University of Health and Rehabilitation Sciences, Qingdao, Shandong 266000, China.
| | - Rong Yang
- Department of Otorhinolaryngology Head and Neck, The Affiliated Qingdao Third People's Hospital of Qingdao University, Qingdao, Shandong 266021, China.
| | - Ting Wang
- Department of Spinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China.
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11
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Ji-hong Y, Yu M, Ling-hong Y, Jing-jing G, Ling-li X, Lv W, Yong-mei J. Baicalein attenuates bleomycin-induced lung fibroblast senescence and lung fibrosis through restoration of Sirt3 expression. PHARMACEUTICAL BIOLOGY 2023; 61:288-297. [PMID: 36815239 PMCID: PMC9970214 DOI: 10.1080/13880209.2022.2160767] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 11/09/2022] [Accepted: 12/15/2022] [Indexed: 06/18/2023]
Abstract
CONTEXT Fibroblast senescence was reported to contribute to the pathological development of idiopathic pulmonary fibrosis (IPF), and baicalein is reported to attenuate IPF. OBJECTIVE This study explores whether baicalein attenuates lung fibrosis by regulating lung fibroblast senescence. MATERIALS AND METHODS Institute of Cancer Research (ICR) mice were randomly assigned to control, bleomycin (BLM), baicalein and BLM + baicalein groups. Lung fibrosis was established by a single intratracheal dose of BLM (3 mg/kg). The baicalein group received baicalein orally (100 mg/kg/day). Sirtuin 3 (Sirt3) siRNA (50 μg) was injected through the tail vein once a week for 2 weeks to explore its effect on the anti-pulmonary fibrosis of baicalein. RESULTS BLM-treated mice exhibited obvious lung fibrosis and fibroblast senescence by showing increased levels of collagen deposition (27.29% vs. 4.14%), hydroxyproline (208.05 vs. 40.16 ng/mg), collagen I (25.18 vs. 9.15 μg/mg), p53, p21, p16, MCP-1, PAI-1, TNF-α, MMP-10 and MMP-12 in lung tissues, which were attenuated by baicalein. Baicalein also mitigated BLM-mediated activation of TGF-β1/Smad signalling pathway. Baicalein restored the BLM-induced downregulation of Sirt3 expression in lung tissues and silencing of Sirt3 abolished the inhibitory role of baicalein against BLM-induced lung fibrosis, fibroblast senescence and activation of TGF-β1/Smad signalling pathway. CONCLUSIONS Baicalein preserved the BLM-induced downregulation of lung Sirt3 expression, and thus the suppression of TGF-β1/Smad signalling pathway and lung fibrosis, which might provide an experimental basis for treatment of IPF.
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Affiliation(s)
- Yuan Ji-hong
- Department of Acute and Critical Care, Shanghai Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ma Yu
- Department of Anesthesiology, Shanghai Baoshan Traditional Chinese Medicine-integrated Hospital, Shanghai, China
| | - Yuan Ling-hong
- Department of Acute and Critical Care, Changxing Branch of Xinhua Hospital Affiliated to School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Gong Jing-jing
- Department of Nephrology, Shanghai Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xu Ling-li
- Department of Acute and Critical Care, Shanghai Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wang Lv
- Department of Emergency and Critical Care Medicine, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Jin Yong-mei
- Department of Nursing, Shanghai Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
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12
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Scieszka D, Bolt AM, McCormick MA, Brigman JL, Campen MJ. Aging, longevity, and the role of environmental stressors: a focus on wildfire smoke and air quality. FRONTIERS IN TOXICOLOGY 2023; 5:1267667. [PMID: 37900096 PMCID: PMC10600394 DOI: 10.3389/ftox.2023.1267667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Aging is a complex biological process involving multiple interacting mechanisms and is being increasingly linked to environmental exposures such as wildfire smoke. In this review, we detail the hallmarks of aging, emphasizing the role of telomere attrition, cellular senescence, epigenetic alterations, proteostasis, genomic instability, and mitochondrial dysfunction, while also exploring integrative hallmarks - altered intercellular communication and stem cell exhaustion. Within each hallmark of aging, our review explores how environmental disasters like wildfires, and their resultant inhaled toxicants, interact with these aging mechanisms. The intersection between aging and environmental exposures, especially high-concentration insults from wildfires, remains under-studied. Preliminary evidence, from our group and others, suggests that inhaled wildfire smoke can accelerate markers of neurological aging and reduce learning capabilities. This is likely mediated by the augmentation of circulatory factors that compromise vascular and blood-brain barrier integrity, induce chronic neuroinflammation, and promote age-associated proteinopathy-related outcomes. Moreover, wildfire smoke may induce a reduced metabolic, senescent cellular phenotype. Future interventions could potentially leverage combined anti-inflammatory and NAD + boosting compounds to counter these effects. This review underscores the critical need to study the intricate interplay between environmental factors and the biological mechanisms of aging to pave the way for effective interventions.
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Affiliation(s)
- David Scieszka
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Alicia M. Bolt
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Mark A. McCormick
- Department of Biochemistry and Molecular Biology, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Jonathan L. Brigman
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Matthew J. Campen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
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13
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Xiao H, Xie Y, Xi K, Xie J, Liu M, Zhang Y, Cheng Z, Wang W, Guo B, Wu S. Targeting Mitochondrial Sirtuins in Age-Related Neurodegenerative Diseases and Fibrosis. Aging Dis 2023; 14:1583-1605. [PMID: 37196115 PMCID: PMC10529758 DOI: 10.14336/ad.2023.0203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/03/2023] [Indexed: 05/19/2023] Open
Abstract
Aging is a natural and complex biological process that is associated with widespread functional declines in numerous physiological processes, terminally affecting multiple organs and tissues. Fibrosis and neurodegenerative diseases (NDs) often occur with aging, imposing large burdens on public health worldwide, and there are currently no effective treatment strategies for these diseases. Mitochondrial sirtuins (SIRT3-5), which are members of the sirtuin family of NAD+-dependent deacylases and ADP-ribosyltransferases, are capable of regulating mitochondrial function by modifying mitochondrial proteins that participate in the regulation of cell survival under various physiological and pathological conditions. A growing body of evidence has revealed that SIRT3-5 exert protective effects against fibrosis in multiple organs and tissues, including the heart, liver, and kidney. SIRT3-5 are also involved in multiple age-related NDs, including Alzheimer's disease, Parkinson's disease, and Huntington's disease. Furthermore, SIRT3-5 have been noted as promising targets for antifibrotic therapies and the treatment of NDs. This review systematically highlights recent advances in knowledge regarding the role of SIRT3-5 in fibrosis and NDs and discusses SIRT3-5 as therapeutic targets for NDs and fibrosis.
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Affiliation(s)
- Haoxiang Xiao
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Yuqiao Xie
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Kaiwen Xi
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Jinyi Xie
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Mingyue Liu
- Medical School, Yan’an University, Yan’an, China
| | - Yangming Zhang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Zishuo Cheng
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Wenting Wang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Baolin Guo
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Shengxi Wu
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
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14
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Mohan MS, Aswani SS, Aparna NS, Boban PT, Sudhakaran PR, Saja K. Effect of acute cold exposure on cardiac mitochondrial function: role of sirtuins. Mol Cell Biochem 2023; 478:2257-2270. [PMID: 36781815 DOI: 10.1007/s11010-022-04656-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 12/30/2022] [Indexed: 02/15/2023]
Abstract
Cardiac function depends mainly on mitochondrial metabolism. Cold conditions increase the risk of cardiovascular diseases by increasing blood pressure. Adaptive thermogenesis leads to increased mitochondrial biogenesis and function in skeletal muscles and adipocytes. Here, we studied the effect of acute cold exposure on cardiac mitochondrial function and its regulation by sirtuins. Significant increase in mitochondrial DNA copy number as measured by the ratio between mitochondrial-coded COX-II and nuclear-coded cyclophilin A gene expression by qRT-PCR and increase in the expression of PGC-1α, a mitochondriogenic factor and its downstream target NRF-1 were observed on cold exposure. This was associated with an increase in the activity of SIRT-1, which is known to activate PGC-1α. Mitochondrial SIRT-3 was also upregulated. Increase in sirtuin activity was reflected in total protein acetylome, which decreased in cold-exposed cardiac tissue. An increase in mitochondrial MnSOD further indicated enhanced mitochondrial function. Further evidence for this was obtained from ex vivo studies of cardiac tissue treated with norepinephrine, which caused a significant increase in mitochondrial MnSOD and SIRT-3. SIRT-3 appears to mediate the regulation of MnSOD, as treatment with AGK-7, a SIRT-3 inhibitor reversed the norepinephrine-induced upregulation of MnSOD. It, therefore, appears that SIRT-3 activation in response to SIRT-1-PGC-1α activation contributes to the regulation of cardiac mitochondrial activity during acute cold exposure.
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Affiliation(s)
- Mithra S Mohan
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala, 695581, India
| | - S S Aswani
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala, 695581, India
| | - N S Aparna
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala, 695581, India
| | - P T Boban
- Department of Biochemistry, Government College, Kariavattom, Thiruvananthapuram, Kerala, 695581, India
| | - P R Sudhakaran
- Department of Computational Biology and Bioinformatics, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala, 695581, India
| | - K Saja
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala, 695581, India.
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15
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Barcena ML, Tonini G, Haritonow N, Breiter P, Milting H, Baczko I, Müller‐Werdan U, Ladilov Y, Regitz‐Zagrosek V. Sex and age differences in AMPK phosphorylation, mitochondrial homeostasis, and inflammation in hearts from inflammatory cardiomyopathy patients. Aging Cell 2023; 22:e13894. [PMID: 37365150 PMCID: PMC10410062 DOI: 10.1111/acel.13894] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/28/2023] [Accepted: 05/10/2023] [Indexed: 06/28/2023] Open
Abstract
Linked to exacerbated inflammation, myocarditis is a cardiovascular disease, which may lead to dilated cardiomyopathy. Although sex and age differences in the development of chronic myocarditis have been postulated, underlying cellular mechanisms remain poorly understood. In the current study, we aimed to investigate sex and age differences in mitochondrial homeostasis, inflammation, and cellular senescence. Cardiac tissue samples from younger and older patients with inflammatory dilated cardiomyopathy (DCMI) were used. The expression of Sirt1, phosphorylated AMPK, PGC-1α, Sirt3, acetylated SOD2, catalase, and several mitochondrial genes was analyzed to assess mitochondrial homeostasis. The expression of NF-κB, TLR4, and interleukins was used to examine the inflammatory state in the heart. Finally, several senescence markers and telomere length were investigated. Cardiac AMPK expression and phosphorylation were significantly elevated in male DCMI patients, whereas Sirt1 expression remained unchanged in all groups investigated. AMPK upregulation was accompanied by a preserved expression of all mitochondrial proteins/genes investigated in older male DCMI patients, whereas the expression of TOM40, TIM23, and the mitochondrial oxidative phosphorylation genes was significantly reduced in older female patients. Mitochondrial homeostasis in older male patients was further supported by the reduced acetylation of mitochondrial proteins as indicated by acetylated SOD2. The inflammatory markers NF-κB and TLR4 were downregulated in older male DCMI patients, whereas the expression of IL-18 was increased in older female patients. This was accompanied by progressed senescence in older DCMI hearts. In conclusion, older women experience more dramatic immunometabolic disorders on the cellular level than older men.
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Affiliation(s)
- Maria Luisa Barcena
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
- DZHK (German Centre for Cardiovascular Research)BerlinGermany
| | - Greta Tonini
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
| | - Natalie Haritonow
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
| | - Pavelas Breiter
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
- DZHK (German Centre for Cardiovascular Research)BerlinGermany
| | - Hendrik Milting
- Erich and Hanna Klessmann InstituteHeart and Diabetes Centre NRW, University Hospital of the Ruhr‐University BochumBad OeynhausenGermany
| | - Istvan Baczko
- Department of Pharmacology and Pharmacotherapy, Albert Szent‐Györgyi Medical SchoolUniversity of SzegedSzegedHungary
| | - Ursula Müller‐Werdan
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
| | - Yury Ladilov
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
- Department of Cardiovascular Surgery, Heart Center BrandenburgBrandenburg Medical SchoolBernau bei BerlinGermany
| | - Vera Regitz‐Zagrosek
- DZHK (German Centre for Cardiovascular Research)BerlinGermany
- Institute for Gender in Medicine, Center for Cardiovascular Research, Charité University HospitalBerlinGermany
- Department of CardiologyUniversity Hospital Zürich, University of ZürichZürichSwitzerland
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16
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Umbarkar P, Ruiz Ramirez SY, Cora AT, Tousif S, Lal H. GSK-3 at the heart of cardiometabolic diseases: Isoform-specific targeting is critical to therapeutic benefit. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166724. [PMID: 37094727 DOI: 10.1016/j.bbadis.2023.166724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 04/26/2023]
Abstract
Glycogen synthase kinase-3 (GSK-3) is a family of serine/threonine kinases. The GSK-3 family has 2 isoforms, GSK-3α and GSK-3β. The GSK-3 isoforms have been shown to play overlapping as well as isoform-specific-unique roles in both, organ homeostasis and the pathogenesis of multiple diseases. In the present review, we will particularly focus on expanding the isoform-specific role of GSK-3 in the pathophysiology of cardiometabolic disorders. We will highlight recent data from our lab that demonstrated the critical role of cardiac fibroblast (CF) GSK-3α in promoting injury-induced myofibroblast transformation, adverse fibrotic remodeling, and deterioration of cardiac function. We will also discuss studies that found the exact opposite role of CF-GSK-3β in cardiac fibrosis. We will review emerging studies with inducible cardiomyocyte (CM)-specific as well as global isoform-specific GSK-3 KOs that demonstrated inhibition of both GSK-3 isoforms provides benefits against obesity-associated cardiometabolic pathologies. The underlying molecular interactions and crosstalk among GSK-3 and other signaling pathways will be discussed. We will briefly review the specificity and limitations of the available small molecule inhibitors targeting GSK-3 and their potential applications to treat metabolic disorders. Finally, we will summarize these findings and offer our perspective on envisioning GSK-3 as a therapeutic target for the management of cardiometabolic diseases.
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Affiliation(s)
- Prachi Umbarkar
- Division of Cardiovascular Disease, The University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Sulivette Y Ruiz Ramirez
- Division of Cardiovascular Disease, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Angelica Toro Cora
- Division of Cardiovascular Disease, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Sultan Tousif
- Division of Cardiovascular Disease, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Hind Lal
- Division of Cardiovascular Disease, The University of Alabama at Birmingham, Birmingham, AL, USA.
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17
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Wang M, Ding Y, Hu Y, Li Z, Luo W, Liu P, Li Z. SIRT3 improved peroxisomes-mitochondria interplay and prevented cardiac hypertrophy via preserving PEX5 expression. Redox Biol 2023; 62:102652. [PMID: 36906951 PMCID: PMC10025106 DOI: 10.1016/j.redox.2023.102652] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/23/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
The present study identified a novel mechanism underlying the protective effect of Sirtuin 3 (SIRT3) against pathological cardiac hypertrophy, beyond its well-accepted role as a deacetylase in mitochondria. SIRT3 modulates the peroxisomes-mitochondria interplay by preserving the expression of peroxisomal biogenesis factor 5 (PEX5), thereby improving mitochondrial function. Downregulation of PEX5 was observed in the hearts of Sirt3-/- mice and angiotensin II-induced cardiac hypertrophic mice, as well as in cardiomyocytes with SIRT3 silencing. PEX5 knockdown abolished the protective effect of SIRT3 against cardiomyocyte hypertrophy, whereas PEX5 overexpression alleviated the hypertrophic response induced by SIRT3 inhibition. PEX5 was involved in the regulation of SIRT3 in mitochondrial homeostasis, including mitochondrial membrane potential, mitochondrial dynamic balance, mitochondrial morphology and ultrastructure, as well as ATP production. In addition, SIRT3 alleviated peroxisomal abnormalities in hypertrophic cardiomyocytes via PEX5, as implied by improvement of peroxisomal biogenesis and ultrastructure, as well as increase of peroxisomal catalase and repression of oxidative stress. Finally, the role of PEX5 as a key regulator of the peroxisomes-mitochondria interplay was confirmed, since peroxisomal defects caused by PEX5 deficiency led to mitochondrial impairment. Taken together, these observations indicate that SIRT3 could maintain mitochondrial homeostasis by preserving the peroxisomes-mitochondria interplay via PEX5. Our findings provide a new understanding of the role of SIRT3 in mitochondrial regulation via interorganelle communication in cardiomyocytes.
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Affiliation(s)
- Minghui Wang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, China
| | - Yanqing Ding
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, China; School of Medicine, Kunming University of Science and Technology, China
| | - Yuehuai Hu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, China
| | - Zeyu Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, China
| | - Wenwei Luo
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, China; Department of Pharmacy, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, China
| | - Peiqing Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, China.
| | - Zhuoming Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, China.
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18
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Chen DQ, Chen L, Guo Y, Wu XQ, Zhao TT, Zhao HL, Zhang HJ, Yan MH, Zhang GQ, Li P. Poricoic acid A suppresses renal fibroblast activation and interstitial fibrosis in UUO rats via upregulating Sirt3 and promoting β-catenin K49 deacetylation. Acta Pharmacol Sin 2022; 44:1038-1050. [PMID: 36470978 PMCID: PMC10104829 DOI: 10.1038/s41401-022-01026-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/06/2022] [Indexed: 12/12/2022] Open
Abstract
AbstractRenal interstitial fibrosis is the common pathological process of various chronic kidney diseases to end-stage renal disease. Inhibition of fibroblast activation attenuates renal interstitial fibrosis. Our previous studies show that poricoic acid A (PAA) isolated from Poria cocos is a potent anti-fibrotic agent. In the present study we investigated the effects of PAA on renal fibroblast activation and interstitial fibrosis and the underlying mechanisms. Renal interstitial fibrosis was induced in rats or mice by unilateral ureteral obstruction (UUO). UUO rats were administered PAA (10 mg·kg−1·d−1, i.g.) for 1 or 2 weeks. An in vitro model of renal fibrosis was established in normal renal kidney fibroblasts (NRK-49F cells) treated with TGF-β1. We showed that PAA treatment rescued Sirt3 expression, and significantly attenuated renal fibroblast activation and interstitial fibrosis in both the in vivo and in vitro models. In TGF-β1-treated NRK-49F cells, we demonstrated that Sirt3 deacetylated β-catenin (a key transcription factor of fibroblast activation) and then accelerated its ubiquitin-dependent degradation, thus suppressing the protein expression and promoter activity of pro-fibrotic downstream target genes (twist, snail1, MMP-7 and PAI-1) to alleviate fibroblast activation; the lysine-49 (K49) of β-catenin was responsible for Sirt3-mediated β-catenin deacetylation. In molecular docking analysis, we found the potential interaction of Sirt3 and PAA. In both in vivo and in vitro models, pharmacological activation of Sirt3 by PAA significantly suppressed renal fibroblast activation via facilitating β-catenin K49 deacetylation. In UUO mice and NRK-49F cells, Sirt3 overexpression enhanced the anti-fibrotic effect of PAA, whereas Sirt3 knockdown weakened the effect. Taken together, PAA attenuates renal fibroblast activation and interstitial fibrosis by upregulating Sirt3 and inducing β-catenin K49 deacetylation, highlighting Sirt3 functions as a promising therapeutic target of renal fibroblast activation and interstitial fibrosis.
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19
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Zhu J, Yang Q, Li H, Wang Y, Jiang Y, Wang H, Cong L, Xu J, Shen Z, Chen W, Zeng X, Wang M, Lei M, Sun Y. Sirt3 deficiency accelerates ovarian senescence without affecting spermatogenesis in aging mice. Free Radic Biol Med 2022; 193:511-525. [PMID: 36336229 DOI: 10.1016/j.freeradbiomed.2022.10.324] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/11/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
Sirtuin-3 (SIRT3), the main deacetylase in the mitochondria, maintains cellular energy metabolism and redox balance by deacetylating mitochondrial proteins in a NAD+-dependent manner. Growing evidence indicates that decreased Sirt3 expression is involved in various age-related maladies. However, the role of Sirt3 in ovarian and testicular senescence remains unclear. In this study, we observed that sirt3 expression showed age-dependent decreases in the ovary but not the testis. We generated Sirt3 null mice via CRISPR/Cas9-mediated genome editing. We observed that Sirt3 deletion accelerated ovarian aging, as shown by a decrease in offspring sizes, the follicle reserve and oocytes markers (Bmp15 and Gdf9) as well as increased expression of aging and inflammation-related genes (p16, p21, Il-1α, and Il-1β). Sirt3 deficiency led to an accumulation of superoxide and disruption of spindle assembly accompanied by mitochondrial dysfunction (uneven mitochondria distribution, decreased mitochondrial potential as well as reduced mitochondrial DNA content) in aging oocytes. Meanwhile, in ovaries of Sirt3 null mice, the impaired mitochondrial functions were shown by decreases in mitochondrial respiratory complexes, along with lower levels of mitochondrial fusion (OPA1, MFN2) and fission (DRP1, FIS1) proteins. er levels of mitochondrial fusion (OPA1, MFN2) and fission (DRP1, FIS1) proteins. Interestingly, Sirt3-/- male mice exhibited no changes on the testicular histology, serum testosterone levels, germ-cell proliferation, and differentiation of spermatogonia. Meiotic prophase I spermatocytes were also normal. Levels of superoxide, mitochondrial potential as well as expression of mitochondrially-encoded genes were unaltered in Sirt3-/- testes. Collectively, the results indicated that SIRT3 plays a critical role in maintaining the ovarian follicle reserve and oocyte quality in aging mice, suggesting its important role in controlling ovarian senescence.
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Affiliation(s)
- Jing Zhu
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Qingling Yang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Hui Li
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yujiao Wang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuqing Jiang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huan Wang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Luping Cong
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianmin Xu
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhaoyang Shen
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenhui Chen
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xinxin Zeng
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengchen Wang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Min Lei
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingpu Sun
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Disease (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Jin L, Geng L, Ying L, Shu L, Ye K, Yang R, Liu Y, Wang Y, Cai Y, Jiang X, Wang Q, Yan X, Liao B, Liu J, Duan F, Sweeney G, Woo CWH, Wang Y, Xia Z, Lian Q, Xu A. FGF21-Sirtuin 3 Axis Confers the Protective Effects of Exercise Against Diabetic Cardiomyopathy by Governing Mitochondrial Integrity. Circulation 2022; 146:1537-1557. [PMID: 36134579 DOI: 10.1161/circulationaha.122.059631] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Exercise is an effective nonpharmacological strategy to alleviate diabetic cardiomyopathy (DCM) through poorly defined mechanisms. FGF21 (fibroblast growth factor 21), a peptide hormone with pleiotropic benefits on cardiometabolic homeostasis, has been identified as an exercise responsive factor. This study aims to investigate whether FGF21 signaling mediates the benefits of exercise on DCM, and if so, to elucidate the underlying mechanisms. METHODS The global or hepatocyte-specific FGF21 knockout mice, cardiomyocyte-selective β-klotho (the obligatory co-receptor for FGF21) knockout mice, and their wild-type littermates were subjected to high-fat diet feeding and injection of streptozotocin to induce DCM, followed by a 6-week exercise intervention and assessment of cardiac functions. Cardiac mitochondrial structure and function were assessed by electron microscopy, enzymatic assays, and measurements of fatty acid oxidation and ATP production. Human induced pluripotent stem cell-derived cardiomyocytes were used to investigate the receptor and postreceptor signaling pathways conferring the protective effects of FGF21 against toxic lipids-induced mitochondrial dysfunction. RESULTS Treadmill exercise markedly induced cardiac expression of β-klotho and significantly attenuated diabetes-induced cardiac dysfunction in wild-type mice, accompanied by reduced mitochondrial damage and increased activities of mitochondrial enzymes in hearts. However, such cardioprotective benefits of exercise were largely abrogated in mice with global or hepatocyte-selective ablation of FGF21, or cardiomyocyte-specific deletion of β-klotho. Mechanistically, exercise enhanced the cardiac actions of FGF21 to induce the expression of the mitochondrial deacetylase SIRT3 by AMPK-evoked phosphorylation of FOXO3, thereby reversing diabetes-induced hyperacetylation and functional impairments of a cluster of mitochondrial enzymes. FGF21 prevented toxic lipids-induced mitochondrial dysfunction and oxidative stress by induction of the AMPK/FOXO3/SIRT3 signaling axis in human induced pluripotent stem cell-derived cardiomyocytes. Adeno-associated virus-mediated restoration of cardiac SIRT3 expression was sufficient to restore the responsiveness of diabetic FGF21 knockout mice to exercise in amelioration of mitochondrial dysfunction and DCM. CONCLUSIONS The FGF21-SIRT3 axis mediates the protective effects of exercise against DCM by preserving mitochondrial integrity and represents a potential therapeutic target for DCM. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT03240978.
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Affiliation(s)
- Leigang Jin
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Leiluo Geng
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Lei Ying
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Lingling Shu
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Kevin Ye
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, Canada (K.Y.)
| | - Ranyao Yang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Yan Liu
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Yao Wang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Yin Cai
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Health Technology and Informatics, Hong Kong Polytechnic University, China (Y.C.)
| | - Xue Jiang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Qin Wang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Xingqun Yan
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China
| | - Boya Liao
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Jie Liu
- Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Women and Children's Medical Center, Guangzhou Medical University, China (J.L., F.D., Q.L.)
| | - Fuyu Duan
- Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Women and Children's Medical Center, Guangzhou Medical University, China (J.L., F.D., Q.L.)
| | - Gary Sweeney
- Department of Biology, York University, Toronto, Canada (G.S.)
| | - Connie Wai Hong Woo
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Yu Wang
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
| | - Zhengyuan Xia
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China (Z.X.)
| | - Qizhou Lian
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Cord Blood Bank, Guangzhou Institute of Eugenics and Perinatology, Women and Children's Medical Center, Guangzhou Medical University, China (J.L., F.D., Q.L.)
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology (L.J., L.G., L.Y., L.S., R.Y., Y.L., Yao Wang, Y.C., X.J., Q.W., X.Y., B.L., C.W.H.W., Yu Wang, Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Medicine (L.J., L.G., L.S., R.Y., Y.L., Yao Wang, X.J., Q.W., X.Y., J.L., Z.X., Q.L., A.X.), University of Hong Kong, China.,Department of Pharmacology and Pharmacy (L.J., L.Y., B.L., C.W.H.W., Yu Wang, A.X.), University of Hong Kong, China
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21
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Epigenetic regulation in cardiovascular disease: mechanisms and advances in clinical trials. Signal Transduct Target Ther 2022; 7:200. [PMID: 35752619 PMCID: PMC9233709 DOI: 10.1038/s41392-022-01055-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/18/2022] [Accepted: 06/08/2022] [Indexed: 12/17/2022] Open
Abstract
Epigenetics is closely related to cardiovascular diseases. Genome-wide linkage and association analyses and candidate gene approaches illustrate the multigenic complexity of cardiovascular disease. Several epigenetic mechanisms, such as DNA methylation, histone modification, and noncoding RNA, which are of importance for cardiovascular disease development and regression. Targeting epigenetic key enzymes, especially the DNA methyltransferases, histone methyltransferases, histone acetylases, histone deacetylases and their regulated target genes, could represent an attractive new route for the diagnosis and treatment of cardiovascular diseases. Herein, we summarize the knowledge on epigenetic history and essential regulatory mechanisms in cardiovascular diseases. Furthermore, we discuss the preclinical studies and drugs that are targeted these epigenetic key enzymes for cardiovascular diseases therapy. Finally, we conclude the clinical trials that are going to target some of these processes.
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22
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Stojanovic D, Mitic V, Stojanovic M, Milenkovic J, Ignjatovic A, Milojkovic M. The Scientific Rationale for the Introduction of Renalase in the Concept of Cardiac Fibrosis. Front Cardiovasc Med 2022; 9:845878. [PMID: 35711341 PMCID: PMC9193824 DOI: 10.3389/fcvm.2022.845878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 04/25/2022] [Indexed: 12/17/2022] Open
Abstract
Cardiac fibrosis represents a redundant accumulation of extracellular matrix proteins, resulting from a cascade of pathophysiological events involved in an ineffective healing response, that eventually leads to heart failure. The pathophysiology of cardiac fibrosis involves various cellular effectors (neutrophils, macrophages, cardiomyocytes, fibroblasts), up-regulation of profibrotic mediators (cytokines, chemokines, and growth factors), and processes where epithelial and endothelial cells undergo mesenchymal transition. Activated fibroblasts and myofibroblasts are the central cellular effectors in cardiac fibrosis, serving as the main source of matrix proteins. The most effective anti-fibrotic strategy will have to incorporate the specific targeting of the diverse cells, pathways, and their cross-talk in the pathogenesis of cardiac fibroproliferation. Additionally, renalase, a novel protein secreted by the kidneys, is identified. Evidence demonstrates its cytoprotective properties, establishing it as a survival element in various organ injuries (heart, kidney, liver, intestines), and as a significant anti-fibrotic factor, owing to its, in vitro and in vivo demonstrated pleiotropy to alleviate inflammation, oxidative stress, apoptosis, necrosis, and fibrotic responses. Effective anti-fibrotic therapy may seek to exploit renalase’s compound effects such as: lessening of the inflammatory cell infiltrate (neutrophils and macrophages), and macrophage polarization (M1 to M2), a decrease in the proinflammatory cytokines/chemokines/reactive species/growth factor release (TNF-α, IL-6, MCP-1, MIP-2, ROS, TGF-β1), an increase in anti-apoptotic factors (Bcl2), and prevention of caspase activation, inflammasome silencing, sirtuins (1 and 3) activation, and mitochondrial protection, suppression of epithelial to mesenchymal transition, a decrease in the pro-fibrotic markers expression (’α-SMA, collagen I, and III, TIMP-1, and fibronectin), and interference with MAPKs signaling network, most likely as a coordinator of pro-fibrotic signals. This review provides the scientific rationale for renalase’s scrutiny regarding cardiac fibrosis, and there is great anticipation that these newly identified pathways are set to progress one step further. Although substantial progress has been made, indicating renalase’s therapeutic promise, more profound experimental work is required to resolve the accurate underlying mechanisms of renalase, concerning cardiac fibrosis, before any potential translation to clinical investigation.
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Affiliation(s)
- Dijana Stojanovic
- Institute of Pathophysiology, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Valentina Mitic
- Department of Cardiovascular Rehabilitation, Institute for Treatment and Rehabilitation "Niska Banja", Niska Banja, Serbia
| | - Miodrag Stojanovic
- Department of Medical Statistics and Informatics, Faculty of Medicine, University of Niš, Niš, Serbia.,Center of Informatics and Biostatistics in Healthcare, Institute for Public Health, Niš, Serbia
| | - Jelena Milenkovic
- Institute of Pathophysiology, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Aleksandra Ignjatovic
- Department of Medical Statistics and Informatics, Faculty of Medicine, University of Niš, Niš, Serbia.,Center of Informatics and Biostatistics in Healthcare, Institute for Public Health, Niš, Serbia
| | - Maja Milojkovic
- Institute of Pathophysiology, Faculty of Medicine, University of Niš, Niš, Serbia
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Animal Models of Systemic Sclerosis: Using Nailfold Capillaroscopy as a Potential Tool to Evaluate Microcirculation and Microangiopathy: A Narrative Review. Life (Basel) 2022; 12:life12050703. [PMID: 35629370 PMCID: PMC9147447 DOI: 10.3390/life12050703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 11/18/2022] Open
Abstract
Systemic sclerosis (SSc) is an autoimmune disease with three pathogenic hallmarks, i.e., inflammation, vasculopathy, and fibrosis. A wide plethora of animal models have been developed to address the complex pathophysiology and for the development of possible anti-fibrotic treatments. However, no current model comprises all three pathological mechanisms of the disease. To highlight the lack of a complete model, a review of some of the most widely used animal models for SSc was performed. In addition, to date, no model has accomplished the recreation of primary or secondary Raynaud’s phenomenon, a key feature in SSc. In humans, nailfold capillaroscopy (NFC) has been used to evaluate secondary Raynaud’s phenomenon and microvasculature changes in SSc. Being a non-invasive technique, it is widely used both in clinical studies and as a tool for clinical evaluation. Because of this, its potential use in animal models has been neglected. We evaluated NFC in guinea pigs to investigate the possibility of applying this technique to study microcirculation in the nailfold of animal models and in the future, development of an animal model for Raynaud’s phenomenon. The applications are not only to elucidate the pathophysiological mechanisms of vasculopathy but can also be used in the development of novel treatment options.
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24
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Liu F, Chen J, Li Z, Meng X. Recent Advances in Epigenetics of Age-Related Kidney Diseases. Genes (Basel) 2022; 13:genes13050796. [PMID: 35627181 PMCID: PMC9142069 DOI: 10.3390/genes13050796] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 02/03/2023] Open
Abstract
Renal aging has attracted increasing attention in today’s aging society, as elderly people with advanced age are more susceptible to various kidney disorders such as acute kidney injury (AKI) and chronic kidney disease (CKD). There is no clear-cut universal mechanism for identifying age-related kidney diseases, and therefore, they pose a considerable medical and public health challenge. Epigenetics refers to the study of heritable modifications in the regulation of gene expression that do not require changes in the underlying genomic DNA sequence. A variety of epigenetic modifiers such as histone deacetylases (HDAC) inhibitors and DNA methyltransferase (DNMT) inhibitors have been proposed as potential biomarkers and therapeutic targets in numerous fields including cardiovascular diseases, immune system disease, nervous system diseases, and neoplasms. Accumulating evidence in recent years indicates that epigenetic modifications have been implicated in renal aging. However, no previous systematic review has been performed to systematically generalize the relationship between epigenetics and age-related kidney diseases. In this review, we aim to summarize the recent advances in epigenetic mechanisms of age-related kidney diseases as well as discuss the application of epigenetic modifiers as potential biomarkers and therapeutic targets in the field of age-related kidney diseases. In summary, the main types of epigenetic processes including DNA methylation, histone modifications, non-coding RNA (ncRNA) modulation have all been implicated in the progression of age-related kidney diseases, and therapeutic targeting of these processes will yield novel therapeutic strategies for the prevention and/or treatment of age-related kidney diseases.
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Affiliation(s)
- Feng Liu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China;
| | - Jiefang Chen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China;
| | - Zhenqiong Li
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China;
- Correspondence: (Z.L.); (X.M.)
| | - Xianfang Meng
- Department of Neurobiology, Institute of Brain Research, School of Basic Medical Sciences, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Correspondence: (Z.L.); (X.M.)
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25
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Loss of Proximal Tubular Sirtuin 6 Aggravates Unilateral Ureteral Obstruction-Induced Tubulointerstitial Inflammation and Fibrosis by Regulation of β-Catenin Acetylation. Cells 2022; 11:cells11091477. [PMID: 35563783 PMCID: PMC9100256 DOI: 10.3390/cells11091477] [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: 02/02/2022] [Revised: 04/12/2022] [Accepted: 04/24/2022] [Indexed: 02/04/2023] Open
Abstract
Renal fibrosis is a significant pathologic change associated with progressive kidney disease. Sirt6 is an NAD+-dependent deacetylase and mono-ADP ribosyltransferase known to play diverse roles in the processes attendant to aging, metabolism, and carcinogenesis. However, the role of proximal tubule-specific Sirt6 in renal fibrosis remains elusive. This study investigates the effect of proximal tubule-specific Sirt6 knockdown on unilateral ureteral obstruction (UUO)-induced renal tubulointerstitial inflammation and fibrosis. Renal fibrosis in wild type and PT-Sirt6KO (Sirt6flox/flox; Ggt1-Cre+) mice was induced by UUO surgery. After seven days, histologic examination and Western blot analysis were performed to examine extracellular matrix (ECM) protein expression. We evaluated inflammatory cytokine and cell adhesion molecule expression after ureteral obstruction. The therapeutic effect of Sirt6 activator MDL-800 on UUO-induced tubulointerstitial inflammation and fibrosis was assessed. The loss of Sirt6 in the proximal tubules aggravated UUO-induced tubular injury, ECM deposition, F4/80 positive macrophage infiltration, and proinflammatory cytokine and chemokine expression. Sirt6 activator MDL-800 mitigated UUO-induced renal tubulointerstitial inflammation and fibrosis. In an in vitro experiment, MDL-800 decreases the transforming growth factor (TGF)-β1-induced activation of myofibroblast and ECM production by regulating Sirt6-dependent β-catenin acetylation and the TGF-β1/Smad signaling pathway. In conclusion, proximal tubule Sirt6 may play an essential role in UUO-induced tubulointerstitial inflammation and fibrosis by regulating Sirt6-dependent β-catenin acetylation and ECM protein promoter transcription.
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26
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Murugasamy K, Munjal A, Sundaresan NR. Emerging Roles of SIRT3 in Cardiac Metabolism. Front Cardiovasc Med 2022; 9:850340. [PMID: 35369299 PMCID: PMC8971545 DOI: 10.3389/fcvm.2022.850340] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 01/31/2022] [Indexed: 12/17/2022] Open
Abstract
The heart is a highly metabolically active organ that predominantly utilizes fatty acids as an energy substrate. The heart also derives some part of its energy by oxidation of other substrates, including glucose, lactose, amino acids and ketones. The critical feature of cardiac pathology is metabolic remodeling and loss of metabolic flexibility. Sirtuin 3 (SIRT3) is one of the seven mammalian sirtuins (SIRT1 to SIRT7), with NAD+ dependent deacetylase activity. SIRT3 is expressed in high levels in healthy hearts but downregulated in the aged or diseased hearts. Experimental evidence shows that increasing SIRT3 levels or activity can ameliorate several cardiac pathologies. The primary deacetylation targets of SIRT3 are mitochondrial proteins, most of which are involved in energy metabolism. Thus, SIRT3 improves cardiac health by modulating cardiac energetics. In this review, we discuss the essential role of SIRT3 in regulating cardiac metabolism in the context of physiology and pathology. Specifically, we summarize the recent advancements that emphasize the critical role of SIRT3 as a master regulator of cardiac metabolism. We also present a comprehensive view of all known activators of SIRT3, and elaborate on their therapeutic potential to ameliorate energetic abnormalities in various cardiac pathologies.
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Afzaal A, Rehman K, Kamal S, Akash MSH. Versatile role of sirtuins in metabolic disorders: From modulation of mitochondrial function to therapeutic interventions. J Biochem Mol Toxicol 2022; 36:e23047. [PMID: 35297126 DOI: 10.1002/jbt.23047] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 01/11/2022] [Accepted: 03/02/2022] [Indexed: 12/17/2022]
Abstract
Sirtuins (SIRT1-7) are distinct histone deacetylases (HDACs) whose activity is determined by cellular metabolic status andnicotinamide adenine dinucleotide (NAD+ ) levels. HDACs of class III are the members of the SIRT's protein family. SIRTs are the enzymes that modulate mitochondrial activity and energy metabolism. SIRTs have been linked to a number of clinical and physiological operations, such as energy responses to low-calorie availability, aging, stress resistance, inflammation, and apoptosis. Mammalian SIRT2 orthologs have been identified as SIRT1-7 that are found in several subcellular sections, including the cytoplasm (SIRT1, 2), mitochondrial matrix (SIRT3, 4, 5), and the core (SIRT1, 2, 6, 7). For their deacetylase or ADP-ribosyl transferase action, all SIRTs require NAD+ and are linked to cellular energy levels. Evolutionarily, SIRT1 is related to yeast's SIRT2 as well as received primary attention in the circulatory system. An endogenous protein, SIRT1 is involved in the development of heart failure and plays a key role in cell death and survival. SIRT2 downregulation protects against ischemic-reperfusion damage. Increase in human longevity is caused by an increase in SIRT3 expression. Cardiomyocytes are also protected by SIRT3 from oxidative damage and aging, as well as suppressing cardiac hypertrophy. SIRT4 and SIRT5 perform their roles in the heart. SIRT6 has also been linked to a reduction in heart hypertrophy. SIRT7 is known to be involved in the regulation of stress responses and apoptosis in the heart.
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Affiliation(s)
- Ammara Afzaal
- Department of Pharmaceutical Chemistry, Government College University, Faisalabad, Pakistan
| | - Kanwal Rehman
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
| | - Shagufta Kamal
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
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Cao M, Zhao Q, Sun X, Qian H, Lyu S, Chen R, Xia H, Yuan W. Sirtuin 3: Emerging therapeutic target for cardiovascular diseases. Free Radic Biol Med 2022; 180:63-74. [PMID: 35031448 DOI: 10.1016/j.freeradbiomed.2022.01.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/04/2022] [Accepted: 01/08/2022] [Indexed: 12/26/2022]
Abstract
Acetylation is one of the most important methods of modification that lead to a change in the function of proteins. In humans, metabolic enzymes commonly undergo acetylation, which regulates the activities of metabolic enzymes and metabolic pathways. Sirtuin 3 (SIRT3) is a prominent deacetylase that participates in mitochondrial metabolism, redox balance, and mitochondrial dynamics by regulating mitochondrial protein acetylation, thereby protecting mitochondria from damage. Normal mitochondrial function is essential for maintaining the metabolism and function of the heart. Therefore, mitochondrial dysfunction caused by SIRT3 consumption and defects leads to the development of a variety of cardiovascular diseases. A comprehensive understanding of the role of SIRT3 in cardiovascular disease is critical for developing new therapeutic strategies. Herein, we summarize the function of SIRT3 in mitochondria, the complex mechanisms mediating cardiovascular diseases, and the potential value of SIRT3 small-molecule agonists in future clinical treatments.
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Affiliation(s)
- Mengfei Cao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Qianru Zhao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Xia Sun
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Han Qian
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Shumei Lyu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Rui Chen
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Hao Xia
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Wei Yuan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China.
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Abstract
Transforming growth factor-β (TGFβ) isoforms are upregulated and activated in myocardial diseases and have an important role in cardiac repair and remodelling, regulating the phenotype and function of cardiomyocytes, fibroblasts, immune cells and vascular cells. Cardiac injury triggers the generation of bioactive TGFβ from latent stores, through mechanisms involving proteases, integrins and specialized extracellular matrix (ECM) proteins. Activated TGFβ signals through the SMAD intracellular effectors or through non-SMAD cascades. In the infarcted heart, the anti-inflammatory and fibroblast-activating actions of TGFβ have an important role in repair; however, excessive or prolonged TGFβ signalling accentuates adverse remodelling, contributing to cardiac dysfunction. Cardiac pressure overload also activates TGFβ cascades, which initially can have a protective role, promoting an ECM-preserving phenotype in fibroblasts and preventing the generation of injurious, pro-inflammatory ECM fragments. However, prolonged and overactive TGFβ signalling in pressure-overloaded cardiomyocytes and fibroblasts can promote cardiac fibrosis and dysfunction. In the atria, TGFβ-mediated fibrosis can contribute to the pathogenic substrate for atrial fibrillation. Overactive or dysregulated TGFβ responses have also been implicated in cardiac ageing and in the pathogenesis of diabetic, genetic and inflammatory cardiomyopathies. This Review summarizes the current evidence on the role of TGFβ signalling in myocardial diseases, focusing on cellular targets and molecular mechanisms, and discussing challenges and opportunities for therapeutic translation.
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Affiliation(s)
- Nikolaos G Frangogiannis
- The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY, USA.
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Watroba M, Szukiewicz D. Sirtuins at the Service of Healthy Longevity. Front Physiol 2021; 12:724506. [PMID: 34899370 PMCID: PMC8656451 DOI: 10.3389/fphys.2021.724506] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Sirtuins may counteract at least six hallmarks of organismal aging: neurodegeneration, chronic but ineffective inflammatory response, metabolic syndrome, DNA damage, genome instability, and cancer incidence. Moreover, caloric restriction is believed to slow down aging by boosting the activity of some sirtuins through activating adenosine monophosphate-activated protein kinase (AMPK), thus raising the level of intracellular nicotinamide adenine dinucleotide (NAD+) by stimulating NAD+ biosynthesis. Sirtuins and their downstream effectors induce intracellular signaling pathways related to a moderate caloric restriction within cells, mitigating reactive oxygen species (ROS) production, cell senescence phenotype (CSP) induction, and apoptosis as forms of the cellular stress response. Instead, it can promote DNA damage repair and survival of cells with normal, completely functional phenotypes. In this review, we discuss mechanisms of sirtuins action toward cell-conserving phenotype associated with intracellular signaling pathways related to moderate caloric restriction, as well as some tissue-specific functions of sirtuins, especially in the central nervous system, heart muscle, skeletal muscles, liver, kidneys, white adipose tissue, hematopoietic system, and immune system. In this context, we discuss the possibility of new therapeutic approaches.
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Affiliation(s)
- Mateusz Watroba
- Department of Biophysics, Physiology and Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
| | - Dariusz Szukiewicz
- Department of Biophysics, Physiology and Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
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Silaghi CN, Farcaș M, Crăciun AM. Sirtuin 3 (SIRT3) Pathways in Age-Related Cardiovascular and Neurodegenerative Diseases. Biomedicines 2021; 9:biomedicines9111574. [PMID: 34829803 PMCID: PMC8615405 DOI: 10.3390/biomedicines9111574] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/22/2021] [Accepted: 10/27/2021] [Indexed: 01/08/2023] Open
Abstract
Age-associated cardiovascular and neurodegenerative diseases lead to high morbidity and mortality around the world. Sirtuins are vital enzymes for metabolic adaptation and provide protective effects against a wide spectrum of pathologies. Among sirtuins, mitochondrial sirtuin 3 (SIRT3) is an essential player in preserving the habitual metabolic profile. SIRT3 activity declines as a result of aging-induced changes in cellular metabolism, leading to increased susceptibility to endothelial dysfunction, hypertension, heart failure and neurodegenerative diseases. Stimulating SIRT3 activity via lifestyle, pharmacological or genetic interventions could protect against a plethora of pathologies and could improve health and lifespan. Thus, understanding how SIRT3 operates and how its protective effects could be amplified, will aid in treating age-associated diseases and ultimately, in enhancing the quality of life in elders.
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Thoreau B, Chaigne B, Renaud A, Mouthon L. Pathophysiology of systemic sclerosis. Presse Med 2021; 50:104087. [PMID: 34718115 DOI: 10.1016/j.lpm.2021.104087] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 10/20/2022] Open
Abstract
Systemic sclerosis (SSc) is a rare connective tissue disease characterized by vascular remodeling, fibroblast activation and extra-cellular matrix production in excess and autoimmunity. Environmental factors including mainly silica and solvents have been assumed to contribute to the development of SSc, together with genetic factors including gene variants implicated in innate immunity such as IRF5 and STAT4, and epigenetic factors including histone post-translational modifications, DNA hypomethylation, and microRNAs or long- non coding RNAs system were reported to participate in immune activation and fibrosis processes in patients with SSc. A number of animal models of SSc have been set up over the years, including genetic and induced SSc models. These models, together with data obtained from human SSc patients, contributed to better understand the mechanisms contributing to vasculopathy and fibrosis. Alongside the pathophysiological process of SSc, several cellular and molecular actors are involved, such as dysregulations in the innate and adaptive immune cells, of the fibroblast, the implication of pro-inflammatory and pro-fibrosing signaling pathways such as the Wnt, TGF-β pathways or other cytokines, with a strong imprint of oxidative stress. The whole lead to the overactivity of the fibroblast with genetic dysregulation, apoptosis defect, hyperproduction of elements of extracellular matrix, and finally the phenomena of vasculopathy and fibrosis. These advances contribute to open new therapeutic areas through the design of biologics and small molecules.
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Affiliation(s)
- Benjamin Thoreau
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Benjamin Chaigne
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Arthur Renaud
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France
| | - Luc Mouthon
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.
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Taneja A, Ravi V, Hong JY, Lin H, Sundaresan NR. Emerging roles of Sirtuin 2 in cardiovascular diseases. FASEB J 2021; 35:e21841. [PMID: 34582046 DOI: 10.1096/fj.202100490r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 07/07/2021] [Accepted: 07/23/2021] [Indexed: 11/11/2022]
Abstract
Sirtuins are a family of NAD+ -dependent deacetylases implicated in a wide variety of age-associated pathologies, including cardiovascular disorders. Among the seven mammalian sirtuins, SIRT2 modulates various cellular processes through the deacetylation or deacylation of their target proteins. Notably, the levels of SIRT2 in the heart decline with age and other pathological conditions, leading to cardiovascular dysfunction. In the present review, we discuss the emerging roles of SIRT2 in cardiovascular dysfunction and heart failure associated with factors like age, hypertension, oxidative stress, and diabetes. We also discuss the potential of using inhibitors to study the unexplored role of SIRT2 in the heart. While SIRT2 undoubtedly plays a crucial role in the cardiovascular system, its functions are only beginning to be understood, making it an attractive candidate for further research in the field.
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Affiliation(s)
- Arushi Taneja
- Department of Microbiology and Cell Biology, Cardiovascular and Muscle Research Laboratory, Indian Institute of Science, Bengaluru, India
| | - Venkatraman Ravi
- Department of Microbiology and Cell Biology, Cardiovascular and Muscle Research Laboratory, Indian Institute of Science, Bengaluru, India
| | - Jun Young Hong
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Hening Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA.,Howard Hughes Medical Institute, Cornell University, Ithaca, NY, USA
| | - Nagalingam Ravi Sundaresan
- Department of Microbiology and Cell Biology, Cardiovascular and Muscle Research Laboratory, Indian Institute of Science, Bengaluru, India
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Zhang Y, Wen P, Luo J, Ding H, Cao H, He W, Zen K, Zhou Y, Yang J, Jiang L. Sirtuin 3 regulates mitochondrial protein acetylation and metabolism in tubular epithelial cells during renal fibrosis. Cell Death Dis 2021; 12:847. [PMID: 34518519 PMCID: PMC8437958 DOI: 10.1038/s41419-021-04134-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 08/15/2021] [Accepted: 08/26/2021] [Indexed: 02/08/2023]
Abstract
Proximal tubular epithelial cells (TECs) demand high energy and rely on mitochondrial oxidative phosphorylation as the main energy source. However, this is disturbed in renal fibrosis. Acetylation is an important post-translational modification for mitochondrial metabolism. The mitochondrial protein NAD+-dependent deacetylase sirtuin 3 (SIRT3) regulates mitochondrial metabolic function. Therefore, we aimed to identify the changes in the acetylome in tubules from fibrotic kidneys and determine their association with mitochondria. We found that decreased SIRT3 expression was accompanied by increased acetylation in mitochondria that have separated from TECs during the early phase of renal fibrosis. Sirt3 knockout mice were susceptible to hyper-acetylated mitochondrial proteins and to severe renal fibrosis. The activation of SIRT3 by honokiol ameliorated acetylation and prevented renal fibrosis. Analysis of the acetylome in separated tubules using LC-MS/MS showed that most kidney proteins were hyper-acetylated after unilateral ureteral obstruction. The increased acetylated proteins with 26.76% were mitochondrial proteins which were mapped to a broad range of mitochondrial pathways including fatty acid β-oxidation, the tricarboxylic acid cycle (TCA cycle), and oxidative phosphorylation. Pyruvate dehydrogenase E1α (PDHE1α), which is the primary link between glycolysis and the TCA cycle, was hyper-acetylated at lysine 385 in TECs after TGF-β1 stimulation and was regulated by SIRT3. Our findings showed that mitochondrial proteins involved in regulating energy metabolism were acetylated and targeted by SIRT3 in TECs. The deacetylation of PDHE1α by SIRT3 at lysine 385 plays a key role in metabolic reprogramming associated with renal fibrosis.
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Affiliation(s)
- Yu Zhang
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China
| | - Ping Wen
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China
| | - Jing Luo
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China
| | - Hao Ding
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China
| | - Hongdi Cao
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China
| | - Weichun He
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China
| | - Ke Zen
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University Advanced Institute of Life Sciences, Nanjing, Jiangsu, 210093, China
| | - Yang Zhou
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China.
| | - Junwei Yang
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China.
| | - Lei Jiang
- Center for Kidney Disease, The second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210003, China.
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35
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Chang MY, Chang SY, Su PP, Tian F, Liu ZS. The protective effect of beta-hydroxybutyric acid on renal glomerular epithelial cells in adriamycin-induced injury. Am J Transl Res 2021; 13:8847-8859. [PMID: 34539999 PMCID: PMC8430157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
Beta-hydroxybutyric acid (BHB) exerts a protective effect in experimental of kidney disease models. However, the mechanisms underlying this activity are not well defined. BHB stands out for its ability to inhibit the Nε-lysine acetylation of histone and non-histone proteins, which may affect cellular processes and protein functions. In adriamycin-injured murine glomerular podocytes, BHB ameliorates podocyte damage and preserves actin cytoskeleton integrity, reminiscent of the effect of MS275, a highly selective inhibitor of lysine deacetylase. Further research found that adriamycin causes the reduced acetylation of nephrin, WT-1, and GSK3β. This process is abrogated by the lysine deacetylase inhibitor or BHB, suggesting that the acetylation of these molecules regulates their activity. In contrast, anacardic acid, a selective inhibitor of acetyltransferase, decreases the acetylation of nephrin, WT-1, and GSK3β and mitigates the podocyte protective effects of BHB. Taken together, BHB attenuates adriamycin-elicited glomerular epithelial cell injury, at least in part, by inhibiting the deacetylation of the key molecules implicated in glomerular injury.
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Affiliation(s)
- Ming-Yang Chang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou, Henan Province, P. R. China
| | - Si-Yuan Chang
- Department of Surgical Intensive Care Unit, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou, Henan Province, P. R. China
| | - Pei-Pei Su
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou, Henan Province, P. R. China
| | - Fei Tian
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou, Henan Province, P. R. China
| | - Zhang-Suo Liu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou, Henan Province, P. R. China
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Ni J, Ni A. Histone deacetylase inhibitor induced pVHL-independent degradation of HIF-1α and hierarchical quality control of pVHL via chaperone system. PLoS One 2021; 16:e0248019. [PMID: 34329303 PMCID: PMC8323912 DOI: 10.1371/journal.pone.0248019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/17/2021] [Indexed: 12/15/2022] Open
Abstract
The mortality rate of ovarian cancer is increasing and the role of hypoxia inducible factor-1α (HIF-1α) in tumor progression has been confirmed. von Hippel-Lindau tumor suppressor protein (pVHL) binds HIF-1α and mediates proteasome degradation of HIF-1α. Besides, histone deacetylase inhibitor (HDACi) mitigates tumor growth via targeting HIF-1α, whereas underlying mechanism still requires investigation. In this research, we exposed ovarian cancer cell lines OV-90 and SKOV-3 to escalating concentrations of HDACi LBH589. As a result, cell viability was significantly suppressed and expression of HIF-1α was remarkably reduced along with decreased levels of signal molecules, including phosphoinositide 3-kinase (PI3K) and glycogen synthase kinase 3β (GSK3β) (P = 0.000). Interestingly, pVHL was expressed in a notably declining tendency (P = 0.000). Chaperone heat shock protein-70 (HSP70) was expressed in an ascending manner, whereas expression of chaperonin TCP-1α was reduced clearly (P = 0.000). Besides, co-inhibition of pVHL plus HDAC did not contribute to a remarkable difference in HIF-1α expression as compared with single HDAC inhibition. Furthermore, both cell lines were transfected with plasmids of VHL plus VHL binding protein-1 (VBP-1). Consequently, the expression of HIF-1α as well as lactate dehydrogenase-A (LDHA) was remarkably decreased (P = 0.000). These findings indicate HDACi may repress expression of HIF-1α via inhibiting PI3K and GSK3β and promote degradation of HIF-1α via HSP70, independent of pVHL. Additionally, a sophisticated network of HDAC and chaperones may involve in pVHL quality control.
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Affiliation(s)
- Jieming Ni
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P.R. China
| | - Anping Ni
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P.R. China
- * E-mail:
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Role of PI3K/Akt signaling pathway in cardiac fibrosis. Mol Cell Biochem 2021; 476:4045-4059. [PMID: 34244974 DOI: 10.1007/s11010-021-04219-w] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/29/2021] [Indexed: 12/26/2022]
Abstract
Heart failure (HF) is considered as a severe health problem worldwide, while cardiac fibrosis is one of the main driving factors for the progress of HF. Cardiac fibrosis was characterized by changes in cardiomyocytes, cardiac fibroblasts, ratio of collagen (COL) I/III, and the excessive production and deposition of extracellular matrix (ECM), thus forming a scar tissue, which leads to pathological process of cardiac structural changes and systolic as well as diastolic dysfunction. Cardiac fibrosis is a common pathological change of many advanced cardiovascular diseases including ischemic heart disease, hypertension, and HF. Accumulated studies have proven that phosphoinositol-3 kinase (PI3K)/Akt signaling pathway is involved in regulating the occurrence, progression and pathological formation of cardiac fibrosis via regulating cell survival, apoptosis, growth, cardiac contractility and even the transcription of related genes through a series of molecules including mammalian target of rapamycin (mTOR), glycogen synthase kinase 3 (GSK-3), forkhead box proteins O1/3 (FoxO1/3), and nitric oxide synthase (NOS). Thus, the review focuses on the role of PI3K/Akt signaling pathway in the cardiac fibrosis. The information reviewed here should be significant in understanding the role of PI3K/Akt in cardiac fibrosis and contribute to the design of further studies related to PI3K/Akt and the cardiac fibrotic response, as well as sought to shed light on a potential treatment for cardiac fibrosis.
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Jiang C, Huang H, Kang X, Yang L, Xi Z, Sun H, Pluth MD, Yi L. NBD-based synthetic probes for sensing small molecules and proteins: design, sensing mechanisms and biological applications. Chem Soc Rev 2021; 50:7436-7495. [PMID: 34075930 PMCID: PMC8763210 DOI: 10.1039/d0cs01096k] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Compounds with a nitrobenzoxadiazole (NBD) skeleton exhibit prominent useful properties including environmental sensitivity, high reactivity toward amines and biothiols (including H2S) accompanied by distinct colorimetric and fluorescent changes, fluorescence-quenching ability, and small size, all of which facilitate biomolecular sensing and self-assembly. Amines are important biological nucleophiles, and the unique activity of NBD ethers with amines has allowed for site-specific protein labelling and for the detection of enzyme activities. Both H2S and biothiols are involved in a wide range of physiological processes in mammals, and misregulation of these small molecules is associated with numerous diseases including cancers. In this review, we focus on NBD-based synthetic probes as advanced chemical tools for biomolecular sensing. Specifically, we discuss the sensing mechanisms and selectivity of the probes, the design strategies for multi-reactable multi-quenching probes, and the associated biological applications of these important constructs. We also highlight self-assembled NBD-based probes and outline future directions for NBD-based chemosensors. We hope that this comprehensive review will facilitate the development of future probes for investigating and understanding different biological processes and aid the development of potential theranostic agents.
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Affiliation(s)
- Chenyang Jiang
- State Key Laboratory of Organic-Inorganic Composites and Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology (BUCT), Beijing 100029, China.
| | - Haojie Huang
- State Key Laboratory of Organic-Inorganic Composites and Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology (BUCT), Beijing 100029, China.
| | - Xueying Kang
- State Key Laboratory of Organic-Inorganic Composites and Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology (BUCT), Beijing 100029, China.
| | - Liu Yang
- Department of Chemistry and Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Zhen Xi
- State Key Laboratory of Elemento-Organic Chemistry and Department of Chemical Biology, College of Chemistry, National Pesticide Engineering Research Center, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China.
| | - Hongyan Sun
- Department of Chemistry and Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China. and Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, Institute of Molecular Biology, University of Oregon, Eugene, OR 97403, USA.
| | - Long Yi
- State Key Laboratory of Organic-Inorganic Composites and Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology (BUCT), Beijing 100029, China.
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Cheresh P, Kim SJ, Jablonski R, Watanabe S, Lu Z, Chi M, Helmin KA, Gius D, Budinger GRS, Kamp DW. SIRT3 Overexpression Ameliorates Asbestos-Induced Pulmonary Fibrosis, mt-DNA Damage, and Lung Fibrogenic Monocyte Recruitment. Int J Mol Sci 2021; 22:6856. [PMID: 34202229 PMCID: PMC8268084 DOI: 10.3390/ijms22136856] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 01/28/2023] Open
Abstract
Alveolar epithelial cell (AEC) mitochondrial (mt) DNA damage and fibrotic monocyte-derived alveolar macrophages (Mo-AMs) are implicated in the pathobiology of pulmonary fibrosis. We showed that sirtuin 3 (SIRT3), a mitochondrial protein regulating cell fate and aging, is deficient in the AECs of idiopathic pulmonary fibrosis (IPF) patients and that asbestos- and bleomycin-induced lung fibrosis is augmented in Sirt3 knockout (Sirt3-/-) mice associated with AEC mtDNA damage and intrinsic apoptosis. We determined whether whole body transgenic SIRT3 overexpression (Sirt3Tg) protects mice from asbestos-induced pulmonary fibrosis by mitigating lung mtDNA damage and Mo-AM recruitment. Crocidolite asbestos (100 µg/50 µL) or control was instilled intratracheally in C57Bl6 (Wild-Type) mice or Sirt3Tg mice, and at 21 d lung fibrosis (histology, fibrosis score, Sircol assay) and lung Mo-AMs (flow cytometry) were assessed. Compared to controls, Sirt3Tg mice were protected from asbestos-induced pulmonary fibrosis and had diminished lung mtDNA damage and Mo-AM recruitment. Further, pharmacologic SIRT3 inducers (i.e., resveratrol, viniferin, and honokiol) each diminish oxidant-induced AEC mtDNA damage in vitro and, in the case of honokiol, protection occurs in a SIRT3-dependent manner. We reason that SIRT3 preservation of AEC mtDNA is a novel therapeutic focus for managing patients with IPF and other types of pulmonary fibrosis.
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Affiliation(s)
- Paul Cheresh
- Jesse Brown VA Medical Center, Division of Pulmonary & Critical Care Medicine, Chicago, IL 60612, USA; (P.C.); (S.-J.K.); (Z.L.); (G.R.S.B.)
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
| | - Seok-Jo Kim
- Jesse Brown VA Medical Center, Division of Pulmonary & Critical Care Medicine, Chicago, IL 60612, USA; (P.C.); (S.-J.K.); (Z.L.); (G.R.S.B.)
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
| | - Renea Jablonski
- Section of Pulmonary and Critical Care, Pritzker School of Medicine, The University of Chicago, Chicago, IL 60637, USA;
| | - Satoshi Watanabe
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
| | - Ziyan Lu
- Jesse Brown VA Medical Center, Division of Pulmonary & Critical Care Medicine, Chicago, IL 60612, USA; (P.C.); (S.-J.K.); (Z.L.); (G.R.S.B.)
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
| | - Monica Chi
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
| | - Kathryn A. Helmin
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
| | - David Gius
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA;
| | - G. R. Scott Budinger
- Jesse Brown VA Medical Center, Division of Pulmonary & Critical Care Medicine, Chicago, IL 60612, USA; (P.C.); (S.-J.K.); (Z.L.); (G.R.S.B.)
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
| | - David W. Kamp
- Jesse Brown VA Medical Center, Division of Pulmonary & Critical Care Medicine, Chicago, IL 60612, USA; (P.C.); (S.-J.K.); (Z.L.); (G.R.S.B.)
- Department of Medicine, Feinberg School of Medicine, Pulmonary and Critical Care Medicine, Northwestern University, Simpson & Querrey Biomedical Research Center 5-303, 303 E Superior St., Chicago, IL 60611, USA; (S.W.); (M.C.); (K.A.H.)
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Zullo A, Mancini FP, Schleip R, Wearing S, Klingler W. Fibrosis: Sirtuins at the checkpoints of myofibroblast differentiation and profibrotic activity. Wound Repair Regen 2021; 29:650-666. [PMID: 34077595 DOI: 10.1111/wrr.12943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 12/11/2022]
Abstract
Fibrotic diseases are still a serious concern for public health, due to their high prevalence, complex etiology and lack of successful treatments. Fibrosis consists of excessive accumulation of extracellular matrix components. As a result, the structure and function of tissues are impaired, thus potentially leading to organ failure and death in several chronic diseases. Myofibroblasts represent the principal cellular mediators of fibrosis, due to their extracellular matrix producing activity, and originate from different types of precursor cells, such as mesenchymal cells, epithelial cells and fibroblasts. Profibrotic activation of myofibroblasts can be triggered by a variety of mechanisms, including the transforming growth factor-β signalling pathway, which is a major factor driving fibrosis. Interestingly, preclinical and clinical studies showed that fibrotic degeneration can stop and even reverse by using specific antifibrotic treatments. Increasing scientific evidence is being accumulated about the role of sirtuins in modulating the molecular pathways responsible for the onset and development of fibrotic diseases. Sirtuins are NAD+ -dependent protein deacetylases that play a crucial role in several molecular pathways within the cells, many of which at the crossroad between health and disease. In this context, we will report the current knowledge supporting the role of sirtuins in the balance between healthy and diseased myofibroblast activity. In particular, we will address the signalling pathways and the molecular targets that trigger the differentiation and profibrotic activation of myofibroblasts and can be modulated by sirtuins.
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Affiliation(s)
- Alberto Zullo
- Department of Sciences and Technologies, Benevento, Italy.,CEINGE Advanced Biotechnologies s.c.a.r.l. Naples, Italy
| | | | - Robert Schleip
- Department of Sport and Health Sciences, Technical University Munich, Germany.,Fascia Research Group, Department of Neurosurgery, Ulm University, Germany.,Diploma University of Applied Sciences, Bad Sooden-Allendorf, Germany
| | - Scott Wearing
- Department of Sport and Health Sciences, Technical University Munich, Germany.,Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Werner Klingler
- Department of Sport and Health Sciences, Technical University Munich, Germany.,Fascia Research Group, Department of Neurosurgery, Ulm University, Germany.,Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia.,Department of Anaesthesiology, SRH Hospital Sigmaringen, Germany
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41
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Srivastava SP, Li J, Takagaki Y, Kitada M, Goodwin JE, Kanasaki K, Koya D. Endothelial SIRT3 regulates myofibroblast metabolic shifts in diabetic kidneys. iScience 2021; 24:102390. [PMID: 33981977 PMCID: PMC8086030 DOI: 10.1016/j.isci.2021.102390] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 12/23/2020] [Accepted: 03/31/2021] [Indexed: 12/14/2022] Open
Abstract
Defects in endothelial cells cause deterioration in kidney function and structure. Here, we found that endothelial SIRT3 regulates metabolic reprogramming and fibrogenesis in the kidneys of diabetic mice. By analyzing, gain of function of the SIRT3 gene by overexpression in a fibrotic mouse strain conferred disease resistance against diabetic kidney fibrosis, whereas its loss of function in endothelial cells exacerbated the levels of diabetic kidney fibrosis. Regulation of endothelial cell SIRT3 on fibrogenic processes was due to tight control over the defective central metabolism and linked activation of endothelial-to-mesenchymal transition (EndMT). SIRT3 deficiency in endothelial cells stimulated the TGFβ/Smad3-dependent mesenchymal transformations in renal tubular epithelial cells. These data demonstrate that SIRT3 regulates defective metabolism and EndMT-mediated activation of the fibrogenic pathways in the diabetic kidneys. Together, our findings show that endothelial SIRT3 is a fundamental regulator of defective metabolism regulating health and disease processes in the kidney.
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Affiliation(s)
- Swayam Prakash Srivastava
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
- Department of Pediatrics (Nephrology) Yale University School of Medicine, New Haven, CT 06520, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine New Haven, CT 06520, USA
| | - Jinpeng Li
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
| | - Yuta Takagaki
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
| | - Munehiro Kitada
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
- Department of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
| | - Julie E. Goodwin
- Department of Pediatrics (Nephrology) Yale University School of Medicine, New Haven, CT 06520, USA
- Vascular Biology and Therapeutics Program, Yale University School of Medicine New Haven, CT 06520, USA
| | - Keizo Kanasaki
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
- Department of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
- Internal Medicine 1, Shimane University, Faculty of Medicine, Izumo, Shimane 693-8501, Japan
| | - Daisuke Koya
- Department of Diabetology & Endocrinology, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
- Department of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Ishikawa 920-0293, Japan
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42
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Francois A, Canella A, Marcho LM, Stratton MS. Protein acetylation in cardiac aging. J Mol Cell Cardiol 2021; 157:90-97. [PMID: 33915138 DOI: 10.1016/j.yjmcc.2021.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 03/14/2021] [Accepted: 04/21/2021] [Indexed: 11/15/2022]
Abstract
Biological aging is attributed to progressive dysfunction in systems governing genetic and metabolic integrity. At the cellular level, aging is evident by accumulated DNA damage and mutation, reactive oxygen species, alternate lipid and protein modifications, alternate gene expression programs, and mitochondrial dysfunction. These effects sum to drive altered tissue morphology and organ dysfunction. Protein-acylation has emerged as a critical mediator of age-dependent changes in these processes. Despite decades of research focus from academia and industry, heart failure remains a leading cause of death in the United States while the 5 year mortality rate for heart failure remains over 40%. Over 90% of heart failure deaths occur in patients over the age of 65 and heart failure is the leading cause of hospitalization in Medicare beneficiaries. In 1931, Cole and Koch discovered age-dependent accumulation of phosphates in skeletal muscle. These and similar findings provided supporting evidence for, now well accepted, theories linking metabolism and aging. Nearly two decades later, age-associated alterations in biochemical molecules were described in the heart. From these small beginnings, the field has grown substantially in recent years. This growing research focus on cardiac aging has, in part, been driven by advances on multiple public health fronts that allow population level clinical presentation of aging related disorders. It is estimated that by 2030, 25% of the worldwide population will be over the age of 65. This review provides an overview of acetylation-dependent regulation of biological processes related to cardiac aging and introduces emerging non-acetyl, acyl-lysine modifications in cardiac function and aging.
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Affiliation(s)
- Ashley Francois
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Alessandro Canella
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Lynn M Marcho
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Matthew S Stratton
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
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43
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Jaiswal A, Xudong Z, Zhenyu J, Saretzki G. Mitochondrial sirtuins in stem cells and cancer. FEBS J 2021; 289:3393-3415. [PMID: 33866670 DOI: 10.1111/febs.15879] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/13/2021] [Indexed: 12/15/2022]
Abstract
The mammalian sirtuin family consists of seven proteins, three of which (SIRT3, SIRT4, and SIRT5) localise specifically within mitochondria and preserve mitochondrial function and homeostasis. Mitochondrial sirtuins are involved in diverse functions such as deacetylation, ADP-ribosylation, demalonylation and desuccinylation, thus affecting various aspects of cell fate. Intriguingly, mitochondrial sirtuins are able to manage these delicate processes with accuracy mediated by crosstalk between the nucleus and mitochondria. Previous studies have provided ample information about their substrates and targets, whereas less is known about their role in cancer and stem cells. Here, we review and discuss recent advances in our understanding of the structural and functional properties of mitochondrial sirtuins, including their targets in cancer and stem cells. These advances could help to improve the understanding of their interplay with signalling cascades and pathways, leading to new avenues for developing novel drugs for sirtuin-related disease treatments. We also highlight the complex network of mitochondrial sirtuins in cancer and stem cells, which may be important in deciphering the molecular mechanism for their activation and inhibition.
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Affiliation(s)
- Amit Jaiswal
- Institute of Ageing Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, China.,Faculty of Biological Sciences, Friedrich Schiller University, Jena, Germany
| | - Zhu Xudong
- Faculty of Biological Sciences, Friedrich Schiller University, Jena, Germany
| | - Ju Zhenyu
- Institute of Ageing Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, China.,Key Laboratory of Regenerative Medicine of Ministry of Education, Institute of Ageing and Regenerative Medicine, Jinan University, Guangzhou, Guangdong, China
| | - Gabriele Saretzki
- Campus for Ageing and Vitality, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
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44
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Liu J, Zhong L, Guo R. The Role of Posttranslational Modification and Mitochondrial Quality Control in Cardiovascular Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6635836. [PMID: 33680284 PMCID: PMC7910068 DOI: 10.1155/2021/6635836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/26/2021] [Accepted: 02/05/2021] [Indexed: 12/31/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death in the world. The mechanism behind CVDs has been studied for decades; however, the pathogenesis is still controversial. Mitochondrial homeostasis plays an essential role in maintaining the normal function of the cardiovascular system. The alterations of any protein function in mitochondria may induce abnormal mitochondrial quality control and unexpected mitochondrial dysfunction, leading to CVDs. Posttranslational modifications (PTMs) affect protein function by reversibly changing their conformation. This review summarizes how common and novel PTMs influence the development of CVDs by regulating mitochondrial quality control. It provides not only ideas for future research on the mechanism of some types of CVDs but also ideas for CVD treatments with therapeutic potential.
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Affiliation(s)
- Jinlin Liu
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Li Zhong
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California, USA
| | - Rui Guo
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
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45
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Rehan M, Kurundkar D, Kurundkar AR, Logsdon NJ, Smith SR, Chanda D, Bernard K, Sanders YY, Deshane JS, Dsouza KG, Rangarajan S, Zmijewski JW, Thannickal VJ. Restoration of SIRT3 gene expression by airway delivery resolves age-associated persistent lung fibrosis in mice. ACTA ACUST UNITED AC 2021; 1:205-217. [PMID: 34386777 PMCID: PMC8357317 DOI: 10.1038/s43587-021-00027-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aging is a risk factor for progressive fibrotic disorders involving diverse organ systems, including the lung. Idiopathic pulmonary fibrosis, an age-associated degenerative lung disorder, is characterized by persistence of apoptosis-resistant myofibroblasts. In this report, we demonstrate that sirtuin-3 (SIRT3), a mitochondrial deacetylase, is downregulated in lungs of IPF human subjects and in mice subjected to lung injury. Over-expression of the SIRT3 cDNA via airway delivery restored capacity for fibrosis resolution in aged mice, in association with activation of the forkhead box transcription factor, FoxO3a, in fibroblasts, upregulation of pro-apoptotic members of the Bcl-2 family, and recovery of apoptosis susceptibility. While transforming growth factor-β1 reduced levels of SIRT3 and FoxO3a in lung fibroblasts, cell non-autonomous effects involving macrophage secreted products were necessary for SIRT3-mediated activation of FoxO3a. Together, these findings reveal a novel role of SIRT3 in pro-resolution macrophage functions that restore susceptibility to apoptosis in fibroblasts via a FoxO3a-dependent mechanism.
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Affiliation(s)
- Mohammad Rehan
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Deepali Kurundkar
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Ashish R Kurundkar
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Naomi J Logsdon
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Samuel R Smith
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Diptiman Chanda
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Karen Bernard
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Yan Y Sanders
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jessy S Deshane
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Kevin G Dsouza
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Sunad Rangarajan
- Division of Pulmonary Sciences and Critical Care, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jaroslaw W Zmijewski
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
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46
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Chen J, Chen S, Zhang B, Liu J. SIRT3 as a potential therapeutic target for heart failure. Pharmacol Res 2021; 165:105432. [PMID: 33508434 DOI: 10.1016/j.phrs.2021.105432] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/12/2020] [Accepted: 01/05/2021] [Indexed: 12/13/2022]
Abstract
Heart failure causes significant morbidity and mortality worldwide. The underlying mechanisms and pathological changes associated with heart failure are exceptionally complex. Despite recent advances in heart failure research, treatment outcomes remain poor. The sirtuin family member sirtuin-3 (SIRT3) is involved in several key biological processes, including ATP production, catabolism, and reactive oxygen species detoxification. In addition to its role in metabolism, SIRT3 regulates cell death and survival and has been implicated in the pathogenesis of cardiovascular diseases. Emerging evidence also shows that SIRT3 can protect cardiomyocytes from hypertrophy, ischemia-reperfusion injury, cardiac fibrosis, and impaired angiogenesis. In this review article, we summarize the recent advances in SIRT3 research and discuss the role of SIRT3 in heart failure. We also discuss the potential use of SIRT3 as a therapeutic target in heart failure.
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Affiliation(s)
- Jie Chen
- Cardiovascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, 430071, People's Republic of China
| | - Shiqi Chen
- Cardiovascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, 430071, People's Republic of China
| | - Bingxia Zhang
- Cardiovascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, 430071, People's Republic of China
| | - Junwei Liu
- Cardiovascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, 430071, People's Republic of China.
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47
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Srivastava SP, Kanasaki K, Goodwin JE. Loss of Mitochondrial Control Impacts Renal Health. Front Pharmacol 2020; 11:543973. [PMID: 33362536 PMCID: PMC7756079 DOI: 10.3389/fphar.2020.543973] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 11/19/2020] [Indexed: 12/13/2022] Open
Abstract
Disruption of mitochondrial biosynthesis or dynamics, or loss of control over mitochondrial regulation leads to a significant alteration in fuel preference and metabolic shifts that potentially affect the health of kidney cells. Mitochondria regulate metabolic networks which affect multiple cellular processes. Indeed, mitochondria have established themselves as therapeutic targets in several diseases. The importance of mitochondria in regulating the pathogenesis of several diseases has been recognized, however, there is limited understanding of mitochondrial biology in the kidney. This review provides an overview of mitochondrial dysfunction in kidney diseases. We describe the importance of mitochondria and mitochondrial sirtuins in the regulation of renal metabolic shifts in diverse cells types, and review this loss of control leads to increased cell-to-cell transdifferentiation processes and myofibroblast-metabolic shifts, which affect the pathophysiology of several kidney diseases. In addition, we examine mitochondrial-targeted therapeutic agents that offer potential leads in combating kidney diseases.
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Affiliation(s)
- Swayam Prakash Srivastava
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT, United States.,Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, United States
| | - Keizo Kanasaki
- Internal Medicine 1, Shimane University Faculty of Medicine, Izumo, Japan
| | - Julie E Goodwin
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT, United States.,Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT, United States
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48
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Lin Y, Xu Z. Fibroblast Senescence in Idiopathic Pulmonary Fibrosis. Front Cell Dev Biol 2020; 8:593283. [PMID: 33324646 PMCID: PMC7723977 DOI: 10.3389/fcell.2020.593283] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/31/2020] [Indexed: 12/13/2022] Open
Abstract
Aging is an inevitable and complex natural phenomenon due to the increase in age. Cellular senescence means a non-proliferative but viable cellular physiological state. It is the basis of aging, and it exists in the body at any time point. Idiopathic pulmonary fibrosis (IPF) is an interstitial fibrous lung disease with unknown etiology, characterized by irreversible destruction of lung structure and function. Aging is one of the most critical risk factors for IPF, and extensive epidemiological data confirms IPF as an aging-related disease. Senescent fibroblasts in IPF show abnormal activation, telomere shortening, metabolic reprogramming, mitochondrial dysfunction, apoptosis resistance, autophagy deficiency, and senescence-associated secretory phenotypes (SASP). These characteristics of senescent fibroblasts establish a close link between cellular senescence and IPF. The treatment of senescence-related molecules and pathways is continually emerging, and using senolytics eliminating senescent fibroblasts is also actively tried as a new therapy for IPF. In this review, we discuss the roles of aging and cellular senescence in IPF. In particular, we summarize the signaling pathways through which senescent fibroblasts influence the occurrence and development of IPF. On this basis, we further talk about the current treatment ideas, hoping this paper can be used as a helpful reference for future researches.
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Affiliation(s)
- Yifan Lin
- Department of Respiratory and Critical Care Medicine, The Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, China
| | - Zhihao Xu
- Department of Respiratory and Critical Care Medicine, The Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, China
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49
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Fang Y, Tian J, Fan Y, Cao P. Latest progress on the molecular mechanisms of idiopathic pulmonary fibrosis. Mol Biol Rep 2020; 47:9811-9820. [PMID: 33230784 DOI: 10.1007/s11033-020-06000-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 11/11/2020] [Indexed: 01/11/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a serious life-threatening lung disease, and the median survival period of PF patients after diagnosis is only 2.5-3.5 years. At present, there are no effective drugs or therapeutics to reverse or even inhibit IPF. The main pathological characteristics of pulmonary fibrosis (PF) include damage to alveolar epithelial cells, fibroblast activation and extracellular matrix accumulation, which gradually lead to damage to the lung structure and decreased lung function. It is important to understand the cellular and molecular mechanisms of PF comprehensively and clearly. In this paper, critical signaling pathways related to PF were reviewed to present updates on the molecular mechanisms of PF.
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Affiliation(s)
- Yue Fang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.,Key Laboratory of Brain Functional Genomics of Ministry of Education, School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Jingya Tian
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.,College of Chemistry and Environmental Sciences, Hebei University, Baoding, China
| | - Yumei Fan
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.
| | - Pengxiu Cao
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, 20 East Road of 2nd South Ring, Yuhua District, Shijiazhuang, 050024, China.
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50
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Xin Y, Jin Y, Ge J, Huang Z, Han L, Li C, Wang D, Zhu S, Wang Q. Involvement of SIRT3-GSK3β deacetylation pathway in the effects of maternal diabetes on oocyte meiosis. Cell Prolif 2020; 54:e12940. [PMID: 33107080 PMCID: PMC7791178 DOI: 10.1111/cpr.12940] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/16/2020] [Accepted: 10/03/2020] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES It has been widely reported that maternal diabetes impairs oocyte quality. However, the responsible mechanisms remain to be explored. In the present study, we focused on whether SIRT3-GSK3β pathway mediates the meiotic defects in oocytes from diabetic mice. MATERIALS AND METHODS GSK3β functions in mouse oocyte meiosis were first detected by targeted siRNA knockdown. Spindle assembly and chromosome alignment were visualized by immunostaining and analysed under the confocal microscope. PCR-based site mutation of specific GSK3β lysine residues was used to confirm which lysine residues function in oocyte meiosis. siRNA knockdown coupled with cRNA overexpression was performed to detect SIRT3-GSK3β pathway functions in oocyte meiosis. Immunofluorescence was performed to detect ROS levels. T1DM mouse models were induced by a single intraperitoneal injection of streptozotocin. RESULTS In the present study, we found that specific depletion of GSK3β disrupts maturational progression and meiotic apparatus in mouse oocytes. By constructing site-specific mutants, we further revealed that acetylation state of lysine (K) 15 on GSK3β is essential for spindle assembly and chromosome alignment during oocyte meiosis. Moreover, non-acetylation-mimetic mutant GSK3β-K15R is capable of partly preventing the spindle/chromosome anomalies in oocytes with SIRT3 knockdown. A significant reduction in SIRT3 protein was detected in oocytes from diabetic mice. Of note, forced expression of GSK3β-K15R ameliorates maternal diabetes-associated meiotic defects in mouse oocytes, with no evident effects on oxidative stress. CONCLUSION Our data identify GSK3β as a cytoskeletal regulator that is required for the assembly of meiotic apparatus, and discover a beneficial effect of SIRT3-dependent GSK3β deacetylation on oocyte quality from diabetic mice.
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Affiliation(s)
- Yongan Xin
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Yifei Jin
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Juan Ge
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Zhenyue Huang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Longsen Han
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Congyang Li
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Danni Wang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Shuai Zhu
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Qiang Wang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China.,Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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