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Lv Q, Li D, Zhao L, Yu P, Tao Y, Zhu Q, Wang Y, Wang M, Fu G, Shang M, Zhang W. Proline metabolic reprogramming modulates cardiac remodeling induced by pressure overload in the heart. SCIENCE ADVANCES 2024; 10:eadl3549. [PMID: 38718121 PMCID: PMC11078183 DOI: 10.1126/sciadv.adl3549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 04/04/2024] [Indexed: 05/12/2024]
Abstract
Metabolic reprogramming is critical in the onset of pressure overload-induced cardiac remodeling. Our study reveals that proline dehydrogenase (PRODH), the key enzyme in proline metabolism, reprograms cardiomyocyte metabolism to protect against cardiac remodeling. We induced cardiac remodeling using transverse aortic constriction (TAC) in both cardiac-specific PRODH knockout and overexpression mice. Our results indicate that PRODH expression is suppressed after TAC. Cardiac-specific PRODH knockout mice exhibited worsened cardiac dysfunction, while mice with PRODH overexpression demonstrated a protective effect. In addition, we simulated cardiomyocyte hypertrophy in vitro using neonatal rat ventricular myocytes treated with phenylephrine. Through RNA sequencing, metabolomics, and metabolic flux analysis, we elucidated that PRODH overexpression in cardiomyocytes redirects proline catabolism to replenish tricarboxylic acid cycle intermediates, enhance energy production, and restore glutathione redox balance. Our findings suggest PRODH as a modulator of cardiac bioenergetics and redox homeostasis during cardiac remodeling induced by pressure overload. This highlights the potential of PRODH as a therapeutic target for cardiac remodeling.
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Affiliation(s)
- Qingbo Lv
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Duanbin Li
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Liding Zhao
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Pengcheng Yu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yecheng Tao
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qiongjun Zhu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yao Wang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Meihui Wang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Guosheng Fu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Min Shang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wenbin Zhang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Khan A, Zahid MA, Shahab M, Al-Zoubi RM, Shkoor M, Benameur T, Agouni A. Investigating the role of functional mutations in leucine binding to Sestrin2 in aging and age-associated degenerative pathologies using structural and molecular simulation approaches. J Biomol Struct Dyn 2024:1-13. [PMID: 38686915 DOI: 10.1080/07391102.2024.2335289] [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: 12/01/2023] [Accepted: 03/20/2024] [Indexed: 05/02/2024]
Abstract
Leucine is the native known ligand of Sestrin2 (Sesn2) and its interaction with Sesn2 is particularly important, as it influences the activity of mTOR in aging and its associated pathologies. It is important to find out how leucine interacts with Sesn2 and how mutations in the binding pocket of leucine affect the binding of leucine. Therefore, this study was committed to investigating the impact of non-synonymous mutations by incorporating a broad spectrum of simulation techniques, from molecular dynamics to free energy calculations. Our study was designed to model the atomic-scale interactions between leucine and mutant forms of Sesn2. Our results demonstrated that the interaction paradigm for the mutants has been altered thus showing a significant decline in the hydrogen bonding network. Moreover, these mutations compromised the dynamic stability by altering the conformational flexibility, sampling time, and leucine-induced structural constraints that consequently caused variation in the binding and structural stability. Molecular dynamics-based flexibility analysis revealed that the regions 217-339 and 371-380 demonstrated a higher fluctuation. Noteworthy, these regions correspond to a linker (217-339) and a loop (371-380) that cover the leucine binding cavity that is critical for the 'latch' mechanism in the N-terminal, which is essential for leucine binding. Further validation of reduced binding and modified internal motions caused by the mutants was obtained through binding free energy calculations, principal components analysis (PCA), and free energy landscape (FEL) analysis. By unraveling the molecular intricacies of Sesn2-leucine interactions and their mutations, we hope to pave the way for innovative strategies to combat the inevitable tide of aging and its associated diseases.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Abbas Khan
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Muhammad Ammar Zahid
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Muhammad Shahab
- Department of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing, China
| | - Raed M Al-Zoubi
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha, Qatar
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
- Department of Chemistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Mohanad Shkoor
- Department of Chemistry, College of Arts and Science, Qatar University, Doha, Qatar
| | - Tarek Benameur
- College of Medicine, King Faisal University, Al-Ahsa, Kingdom of Saudi Arabia
| | - Abdelali Agouni
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
- Office of Vice President for Research and Graduate Studies, Qatar University, Doha, Qatar
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Diao C, Yang Z, Hu Q, Yao P, Qu X, Li C, Zhang S, Zhou J. Celastrol Alleviates Mitochondrial Oxidative Stress and Brain Injury After Intracerebral Hemorrhage by Promoting OPA1-Dependent Mitochondrial Fusion. Neuroscience 2024; 536:79-91. [PMID: 37996053 DOI: 10.1016/j.neuroscience.2023.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/01/2023] [Accepted: 11/17/2023] [Indexed: 11/25/2023]
Abstract
Mitochondrial oxidative stress is one of the characteristics of secondary brain injury (SBI) after intracerebral hemorrhage (ICH), contributing largely to the apoptosis of neurons. Celastrol, a quinone methide triterpene that possesses antioxidant and mitochondrial protective properties, has emerged as a neuroprotective agent. However, the activity of celastrol has not been tested in ICH-induced SBI. In this study, we found that celastrol could effectively alleviate neurological function deficits and reduce brain oedema and neuronal apoptosis caused by ICH. Through electron microscopy, we found that celastrol could significantly attenuate mitochondrial morphology impairment. Therefore, we tested the regulatory proteins of mitochondrial dynamics and found that celastrol could reverse the downwards trend of OPA1 expression after ICH. In view of this, by culturing OPA1-deficient primary neurons and constructing neuron-specific OPA1 conditional knockout mice, we found that the protective effects of celastrol on mitochondrial morphology and function after ICH were counteracted in the absence of OPA1. Further experiments also showed that OPA1 is indispensable for the protective effects of celastrol on ICH-induced secondary brain injury. In summary, we have demonstrated that celastrol is a potential drug for the treatment of ICH and have revealed a novel mechanism by which celastrol exerts its antioxidant effects by promoting OPA1-mediated mitochondrial fusion.
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Affiliation(s)
- Chunyan Diao
- School of Pharmacy, The Fourth Military Medical University, No. 169 West Changle Road, Xi'an 710032, PR China
| | - Zhengxuan Yang
- Department of Emergency, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, PR China
| | - Qing Hu
- Department of Neurosurgery and Institute for Functional Brain Disorders, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, PR China
| | - Pengfei Yao
- Department of Neurosurgery, The 940th Hospital of PLA Joint Logistics Support Force, Lanzhou 730050, PR China
| | - Xiaodong Qu
- Department of Neurosurgery, The 940th Hospital of PLA Joint Logistics Support Force, Lanzhou 730050, PR China
| | - Changdong Li
- Department of Neurosurgery, The 940th Hospital of PLA Joint Logistics Support Force, Lanzhou 730050, PR China
| | - Shenghao Zhang
- Department of Neurosurgery, The 940th Hospital of PLA Joint Logistics Support Force, Lanzhou 730050, PR China.
| | - Jie Zhou
- Department of Neurosurgery, The 940th Hospital of PLA Joint Logistics Support Force, Lanzhou 730050, PR China.
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Wang Y, Liu Y, Fang J, Xing X, Wang H, Shi X, Liu X, Niu T, Liu K. Small-molecule agonist AdipoRon alleviates diabetic retinopathy through the AdipoR1/AMPK/EGR4 pathway. J Transl Med 2024; 22:2. [PMID: 38166990 PMCID: PMC10759471 DOI: 10.1186/s12967-023-04783-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Diabetes mellitus (DM) is a progressive disease that involves multiple organs due to increased blood glucose, and diabetic retinopathy (DR) is the main complication of DM in the eyes and causes irreversible vision loss. In the pathogenesis of diabetic vascular disease, oxidative stress caused by hyperglycemia plays an important role in Müller cell impairment. In recent years, AdipoRon, an adiponectin analog that demonstrated important physiological functions in obesity, diabetes, inflammation, and cardiovascular diseases, demonstrated cellular protection from apoptosis and reduced inflammatory damage through a receptor-dependent mechanism. Here, we investigated how AdipoRon reduced oxidative stress and apoptosis in Müller glia in a high glucose environment. RESULTS By binding to adiponectin receptor 1 on Müller glia, AdipoRon activated 5' adenosine monophosphate-activated protein kinase (AMPK)/acetyl-CoA carboxylase phosphorylation downstream, thereby alleviating oxidative stress and eventual apoptosis of cells and tissues. Transcriptome sequencing revealed that AdipoRon promoted the synthesis and expression of early growth response factor 4 (EGR4) and inhibited the cellular protective effects of AdipoRon in a high-glucose environment by reducing the expression of EGR4. This indicated that AdipoRon played a protective role through the EGR4 and classical AMPK pathways. CONCLUSIONS This provides a new target for the early treatment of DR.
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Affiliation(s)
- Yihan Wang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China
- Department of Ophthalmology, Shanghai Renji Hospital, School of Medicine, Shanghai, 200127, China
| | - Yujuan Liu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China
| | - Junwei Fang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China
| | - Xindan Xing
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China
| | - Hanying Wang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China
| | - Xin Shi
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China
| | - Xinyi Liu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China
| | - Tian Niu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China.
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China.
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China.
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China.
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China.
| | - Kun Liu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China.
- National Clinical Research Center for Eye Diseases, Shanghai, 200080, China.
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, 200127, China.
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, 200080, China.
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, 200080, China.
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Dai G, Li M, Xu H, Quan N. Status of Research on Sestrin2 and Prospects for its Application in Therapeutic Strategies Targeting Myocardial Aging. Curr Probl Cardiol 2023; 48:101910. [PMID: 37422038 DOI: 10.1016/j.cpcardiol.2023.101910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/10/2023]
Abstract
Cardiac aging is accompanied by changes in the heart at the cellular and molecular levels, leading to alterations in cardiac structure and function. Given today's increasingly aging population, the decline in cardiac function caused by cardiac aging has a significant impact on quality of life. Antiaging therapies to slow the aging process and attenuate changes in cardiac structure and function have become an important research topic. Treatment with drugs, including metformin, spermidine, rapamycin, resveratrol, astaxanthin, Huolisu oral liquid, and sulforaphane, has been demonstrated be effective in delaying cardiac aging by stimulating autophagy, delaying ventricular remodeling, and reducing oxidative stress and the inflammatory response. Furthermore, caloric restriction has been shown to play an important role in delaying aging of the heart. Many studies in cardiac aging and cardiac aging-related models have demonstrated that Sestrin2 has antioxidant and anti-inflammatory effects, stimulates autophagy, delays aging, regulates mitochondrial function, and inhibits myocardial remodeling by regulation of relevant signaling pathways. Therefore, Sestrin2 is likely to become an important target for antimyocardial aging therapy.
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Affiliation(s)
- Gaoying Dai
- Department of Cardiovascular Center, The First Hospital of Jilin University, Changchun, China
| | - Meina Li
- Department of Infection Control, The First Hospital of Jilin University, Changchun, China
| | - He Xu
- Department of Integrative Medicine, Lequn Branch, The First Hospital of Jilin University, Changchun, China
| | - Nanhu Quan
- Department of Cardiovascular Center, The First Hospital of Jilin University, Changchun, China.
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Hwang I, Kim M. Muscular Sestrins: Roles in Exercise Physiology and Stress Resistance. Biomolecules 2023; 13:722. [PMID: 37238592 PMCID: PMC10216764 DOI: 10.3390/biom13050722] [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: 03/21/2023] [Revised: 04/15/2023] [Accepted: 04/19/2023] [Indexed: 05/28/2023] Open
Abstract
Sestrins are a family of stress-inducible proteins that are critical for stress adaptation and the maintenance of metabolic homeostasis. High expression of Sestrins is observed in skeletal and cardiac muscle tissues, suggesting their significance in the physiological homeostasis of these organs. Furthermore, expression of Sestrins is dynamically controlled in the tissues, based on the level of physical activity and the presence or absence of stress insults. Genetic studies in model organisms have shown that muscular Sestrin expression is critical for metabolic homeostasis, exercise adaptation, stress resistance, and repair and may mediate the beneficial effects of some available therapeutics. The current minireview summarizes and discusses recent findings that shed light on the role of Sestrins in regulating muscle physiology and homeostasis.
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Affiliation(s)
| | - Myungjin Kim
- Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
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A cross-talk between sestrins, chronic inflammation and cellular senescence governs the development of age-associated sarcopenia and obesity. Ageing Res Rev 2023; 86:101852. [PMID: 36642190 DOI: 10.1016/j.arr.2023.101852] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/20/2022] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
The rapid increase in both the lifespan and proportion of older adults is accompanied by the unprecedented rise in age-associated chronic diseases, including sarcopenia and obesity. Aging is also manifested by increased susceptibility to multiple endogenous and exogenous stresses enabling such chronic conditions to develop. Among the main physiological regulators of cellular adaption to various stress stimuli, such as DNA damage, hypoxia, and oxidative stress, are sestrins (Sesns), a family of three evolutionarily conserved proteins, Sesn1, 2, and 3. Age-associated sarcopenia and obesity are characterized by two key processes: (i) accumulation of senescent cells in the skeletal muscle and adipose tissue and (ii) creation of a systemic, chronic, low-grade inflammation (SCLGI). Presumably, failed SCLGI resolution governs the development of these chronic conditions. Noteworthy, Sesns activate senolytics, which are agents that selectively eliminate senescent cells, as well as specialized pro-resolving mediators, which are factors that physiologically provide inflammation resolution. Sesns reveal clear beneficial effects in pre-clinical models of sarcopenia and obesity. Based on these observations, we propose a novel treatment strategy for age-associated sarcopenia and obesity, complementary to the conventional therapeutic modalities: Sesn activation, SCLGI resolution, and senescent cell elimination.
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Sestrin2 as a Protective Shield against Cardiovascular Disease. Int J Mol Sci 2023; 24:ijms24054880. [PMID: 36902310 PMCID: PMC10003517 DOI: 10.3390/ijms24054880] [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: 12/31/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 03/06/2023] Open
Abstract
A timely and adequate response to stress is inherently present in each cell and is important for maintaining the proper functioning of the cell in changing intracellular and extracellular environments. Disruptions in the functioning or coordination of defense mechanisms against cellular stress can reduce the tolerance of cells to stress and lead to the development of various pathologies. Aging also reduces the effectiveness of these defense mechanisms and results in the accumulation of cellular lesions leading to senescence or death of the cells. Endothelial cells and cardiomyocytes are particularly exposed to changing environments. Pathologies related to metabolism and dynamics of caloric intake, hemodynamics, and oxygenation, such as diabetes, hypertension, and atherosclerosis, can overwhelm endothelial cells and cardiomyocytes with cellular stress to produce cardiovascular disease. The ability to cope with stress depends on the expression of endogenous stress-inducible molecules. Sestrin2 (SESN2) is an evolutionary conserved stress-inducible cytoprotective protein whose expression is increased in response to and defend against different types of cellular stress. SESN2 fights back the stress by increasing the supply of antioxidants, temporarily holding the stressful anabolic reactions, and increasing autophagy while maintaining the growth factor and insulin signaling. If the stress and the damage are beyond repair, SESN2 can serve as a safety valve to signal apoptosis. The expression of SESN2 decreases with age and its levels are associated with cardiovascular disease and many age-related pathologies. Maintaining sufficient levels or activity of SESN2 can in principle prevent the cardiovascular system from aging and disease.
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Zhang X, Deng X, Ye H, Chen Z, Li W. Inhibition of Sestrin2 overexpression in diabetic cardiomyopathy ameliorates cardiac injury via restoration of mitochondrial function. Exp Ther Med 2022; 23:265. [PMID: 35251331 PMCID: PMC8892608 DOI: 10.3892/etm.2022.11191] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/21/2022] [Indexed: 11/05/2022] Open
Abstract
Mitochondrial dysfunction-induced apoptosis plays a crucial role in the progression of diabetic cardiomyopathy (DCM). Sestrin2 is an important oxidative stress response protein and is involved in the maintenance of mitochondrial function, especially under stress. The aim of the present study was to investigate the role of Sestrin2 in DCM and to explore the underlying mechanisms. H9c2 cardiomyocytes were induced with high glucose (HG) medium (33 mmol/l glucose) for an in vitro DCM model. C57BL/6 mice were induced for the in vivo DCM model by intraperitoneal streptozotocin injection. H9c2 cardiomyocytes were exposed to HG and infected with lentiviruses to express Sestrin2 short hairpin RNA (shRNA). The study found that cell viability and mitochondrial function were impaired while cell apoptosis and oxidative stress were increased in DCM. Sestrin2 was significantly upregulated in myocardial tissues of DCM mice and H9c2 cardiomyocytes in HG conditions. Downregulation of Sestrin2 increased cell viability, decreased cell apoptosis, and attenuated oxidative stress in H9c2 cells exposed to HG. Moreover, HG-induced mitochondrial injury was alleviated by Sestrin2 silencing. In conclusion, our finding indicated that the inhibition of enhanced Sestrin2 expression ameliorates cardiac injury in DCM, which might be largely attributed to the restoration of mitochondrial function.
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Affiliation(s)
- Xiaodan Zhang
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Xiaoyi Deng
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Huiyu Ye
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Zhishan Chen
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Wangen Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
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Wei Q, Xu X, Chen L, Wang T, Xie L, Yu FC, Song SF, Sheng ZQ, Tong JY. Effects of chronic intermittent hypoxia on left cardiac function in young and aged mice. Am J Physiol Regul Integr Comp Physiol 2022; 322:R241-R252. [PMID: 35080993 DOI: 10.1152/ajpregu.00256.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Obstructive sleep apnea (OSA) is an independent risk factor for cardiovascular disease that is characterized by chronic intermittent hypoxia (CIH), and its impact is related to age. This study aims to assess the age-related impact of CIH on cardiac function and to further explore the mechanism. After 8 weeks of severe CIH exposure, the hearts of young mice showed slight physiological hypertrophy, decreased diastolic function, and collagen I accumulation but no obvious change in contractile function. However, the contractile function of the hearts of aged mice was severely decreased. CIH exposure promoted the fragmentation of mitochondria in the hearts of aged mice and decreased the mitochondrial membrane potential of cardiomyocytes, but these effects were not observed in young mice exposed to the same conditions. CIH induced significant decreases in basal respiration, maximum respiration and ATP production in cardiac mitochondria of aged mice compared to those of young mice. The assessment of mitochondrial-related proteins showed that young mouse hearts had upregulated adaptive nuclear respiratory factors (Nrf)1/2 sirtuin (SIRT)1/3 and transcription factor A (TFAM) expression that stabilized mitochondrial function in response to CIH exposure. Aged mouse hearts exhibited maladaptation to CIH exposure, and downregulation of SIRT1 and TFAM expression resulted in mitochondrial dysfunction.
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Affiliation(s)
- Qin Wei
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Xuan Xu
- Southeast University, Nanjing, Jiangsu, China
| | - Long Chen
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Tao Wang
- Southeast University, Nanjing, Jiangsu, China
| | - Liang Xie
- Southeast University, Nanjing, Jiangsu, China
| | - Fu-Chao Yu
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Si-Fan Song
- Southeast University, Nanjing, Jiangsu, China
| | | | - Jia-Yi Tong
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
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11
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Zhang N, Liao HH, Feng H, Mou SQ, Li WJ, Aiyasiding X, Lin Z, Ding W, Zhou ZY, Yan H, Chen S, Tang QZ. Knockout of AMPKα2 Blocked the Protection of Sestrin2 Overexpression Against Cardiac Hypertrophy Induced by Pressure Overload. Front Pharmacol 2021; 12:716884. [PMID: 34867324 PMCID: PMC8635785 DOI: 10.3389/fphar.2021.716884] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 10/13/2021] [Indexed: 12/02/2022] Open
Abstract
Objectives: Sestrin2 (Sesn2) has been demonstrated to be a cysteine sulfinyl reductase and protects cells from multiple stress insults, including hypoxia, endoplasmic reticulum stress, and oxidative stress. However, the roles and mechanisms of Sesn2 in pressure overload-induced mouse cardiac hypertrophy have not been clearly clarified. This study intended to investigate whether sestrin2 (Sesn2) overexpression could prevent pressure overload-induced cardiac hypertrophy via an AMPKα2 dependent pathway through conditional knockout of AMPKα2. Methods and results: Sesn2 expression was significantly increased in mice hearts at 2 and 4 weeks after aortic banding (AB) surgery, but decreased to 60–70% of the baseline at 8 weeks. Sesn2 overexpression (at 3, 6, and 9 folds) showed little cardiac genetic toxicity in transgenic mice. Cardiac dysfunctions induced by pressure overload were attenuated by cardiomyocyte-specific Sesn2 overexpression when measured by echocardiography and hemodynamic analysis. Results of HE and PSR staining showed that Sesn2 overexpression significantly alleviated cardiac hypertrophy and fibrosis in mice hearts induced by pressure overload. Meanwhile, adenovirus-mediated-Sesn2 overexpression markedly suppressed angiotensin II-induced neonatal rat cardiomyocyte hypertrophy in vitro. Mechanistically, Sesn2 overexpression increased AMPKα2 phosphorylation but inhibited mTORC1 phosphorylation. The cardiac protections of Sesn2 overexpression were also via regulating oxidative stress by enhancing Nrf2/HO-1 signaling, restoring SOD activity, and suppressing NADPH activity. Particularly, we first proved the vital role of AMPKα2 in the regulation of Sesn2 with AMPKα2 knockout (AMPKα2-/-) mice and Sesn2 transgenic mice crossed with AMPKα2-/-, since Sesn2 overexpression failed to improve cardiac function, inhibit cardiac hypertrophy and fibrosis, and attenuate oxidative stress after AMPKα2 knockout. Conclusion: This study uniquely revealed that Sesn2 overexpression showed little genetic toxicity in mice hearts and inhibited mTORC1 activation and oxidative stress to protect against pressure overload-induced cardiac hypertrophy in an AMPKα2 dependent pathway. Thus, interventions through promoting Sesn2 expression might be a potential strategy for treating pathological cardiac hypertrophy and heart failure.
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Affiliation(s)
- Nan Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Hai-Han Liao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Hong Feng
- Department of Geriatrics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shan-Qi Mou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Wen-Jing Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Xiahenazi Aiyasiding
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Zheng Lin
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Wen Ding
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Zi-Ying Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Han Yan
- Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Si Chen
- Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute of Wuhan University, Wuhan, China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
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12
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Ala M, Eftekhar SP. Target Sestrin2 to Rescue the Damaged Organ: Mechanistic Insight into Its Function. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8790369. [PMID: 34765085 PMCID: PMC8577929 DOI: 10.1155/2021/8790369] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 10/18/2021] [Indexed: 12/14/2022]
Abstract
Sestrin2 is a stress-inducible metabolic regulator and a conserved antioxidant protein which has been implicated in the pathogenesis of several diseases. Sestrin2 can protect against atherosclerosis, heart failure, hypertension, myocardial infarction, stroke, spinal cord injury neurodegeneration, nonalcoholic fatty liver disease (NAFLD), liver fibrosis, acute kidney injury (AKI), chronic kidney disease (CKD), and pulmonary inflammation. Oxidative stress and cellular damage signals can alter the expression of Sestrin2 to compensate for organ damage. Different stress signals such as those mediated by P53, Nrf2/ARE, HIF-1α, NF-κB, JNK/c-Jun, and TGF-β/Smad signaling pathways can induce Sestrin2 expression. Subsequently, Sestrin2 activates Nrf2 and AMPK. Furthermore, Sestrin2 is a major negative regulator of mTORC1. Sestrin2 indirectly regulates the expression of several genes and reprograms intracellular signaling pathways to attenuate oxidative stress and modulate a large number of cellular events such as protein synthesis, cell energy homeostasis, mitochondrial biogenesis, autophagy, mitophagy, endoplasmic reticulum (ER) stress, apoptosis, fibrogenesis, and lipogenesis. Sestrin2 vigorously enhances M2 macrophage polarization, attenuates inflammation, and prevents cell death. These alterations in molecular and cellular levels improve the clinical presentation of several diseases. This review will shed light on the beneficial effects of Sestrin2 on several diseases with an emphasis on underlying pathophysiological effects.
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Affiliation(s)
- Moein Ala
- School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Seyed Parsa Eftekhar
- Student Research Committee, Health Research Center, Babol University of Medical Sciences, Babol, Iran
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13
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Liu Y, Li M, Du X, Huang Z, Quan N. Sestrin 2, a potential star of antioxidant stress in cardiovascular diseases. Free Radic Biol Med 2021; 163:56-68. [PMID: 33310138 DOI: 10.1016/j.freeradbiomed.2020.11.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 02/06/2023]
Abstract
Physiological reactive oxygen species (ROS) play an important role in cellular signal transduction. However, excessive ROS is an important pathological mechanism in most cardiovascular diseases (CVDs), such as myocardial aging, cardiomyopathy, ischemia/reperfusion injury (e.g., myocardial infarction) and heart failure. Programmed cell death, hypertrophy and fibrosis may be due to oxidative stress. Sestrin 2 (Sesn2), a stress-inducible protein associated with various stress conditions, is a potential antioxidant. Sesn2 can suppress the process of heart damage caused by oxidative stress, promote cell survival and play a key role in a variety of CVDs. This review discusses the effect of Sesn2 on the redox signal, mainly via participation in the signaling pathway of nuclear factor erythroid 2-related factor 2, activation of adenosine monophosphate-activated protein kinase and inhibition of mammalian target of rapamycin complex 1. It also discusses the effect of Sesn2's antioxidant activity on different CVDs. We speculate that Sesn2 plays an important role in CVDs by stimulating the process of antioxidation and promoting the adaptation of cells to stress conditions and/or the environment, opening a new avenue for related therapeutic strategies.
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Affiliation(s)
- Yunxia Liu
- Department of Cardiovascular Center, First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Meina Li
- Department of Infection Control, First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Xiaoyu Du
- Department of Cardiovascular Center, First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Zhehao Huang
- Department of Neurosurgery, The Third Hospital of Jilin University, Changchun, Jilin, 130031, China.
| | - Nanhu Quan
- Department of Cardiovascular Center, First Hospital of Jilin University, Changchun, Jilin, 130021, China.
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14
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Kishimoto Y, Kondo K, Momiyama Y. The Protective Role of Sestrin2 in Atherosclerotic and Cardiac Diseases. Int J Mol Sci 2021; 22:ijms22031200. [PMID: 33530433 PMCID: PMC7865804 DOI: 10.3390/ijms22031200] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/21/2021] [Accepted: 01/23/2021] [Indexed: 01/22/2023] Open
Abstract
Atherosclerotic disease, such as coronary artery disease (CAD), is known to be a chronic inflammatory disease, as well as an age-related disease. Excessive oxidative stress produced by reactive oxygen species (ROS) contributes to the pathogenesis of atherosclerosis. Sestrin2 is an anti-oxidant protein that is induced by various stresses such as hypoxia, DNA damage, and oxidative stress. Sestrin2 is also suggested to be associated with aging. Sestrin2 is expressed and secreted mainly by macrophages, endothelial cells, and cardiomyocytes. Sestrin2 plays an important role in suppressing the production and accumulation of ROS, thus protecting cells from oxidative damage. Since sestrin2 is reported to have anti-oxidant and anti-inflammatory properties, it may play a protective role against the progression of atherosclerosis and may be a potential therapeutic target for the amelioration of atherosclerosis. Regarding the association between blood sestrin2 levels and atherosclerotic disease, the blood sestrin2 levels in patients with CAD or carotid atherosclerosis were reported to be high. High blood sestrin2 levels in patients with such atherosclerotic disease may reflect a compensatory response to increased oxidative stress and may help protect against the progression of atherosclerosis. This review describes the protective role of sestrin2 against the progression of atherosclerotic and cardiac diseases.
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Affiliation(s)
- Yoshimi Kishimoto
- Department of Food Science and Human Nutrition, Faculty of Agriculture, Setsunan University, 45-1 Nagaotouge-cho, Hirakata, Osaka 573-0101, Japan
- Correspondence: ; Tel.: +81-72-896-6352
| | - Kazuo Kondo
- Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan;
| | - Yukihiko Momiyama
- Department of Cardiology, National Hospital Organization Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo 152-8902, Japan;
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15
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Gong L, Wang Z, Wang Z, Zhang Z. Sestrin2 as a Potential Target for Regulating Metabolic-Related Diseases. Front Endocrinol (Lausanne) 2021; 12:751020. [PMID: 34803916 PMCID: PMC8595836 DOI: 10.3389/fendo.2021.751020] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 10/11/2021] [Indexed: 12/12/2022] Open
Abstract
Sestrin2 is a highly conserved protein that can be induced under a variety of stress conditions, including DNA damage, oxidative stress, endoplasmic reticulum (ER) stress, and metabolic stress. Numerous studies have shown that the AMP-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway has a crucial role in the regulation of metabolism. Sestrin2 regulates metabolism via a number of pathways, including activation of AMPK, inhibition of the mTOR complex 1 (mTORC1), activation of mTOR complex 2 (mTORC2), inhibition of ER stress, and promotion of autophagy. Therefore, modulation of Sestrin2 activity may provide a potential therapeutic target for the prevention of metabolic diseases such as insulin resistance, diabetes, obesity, non-alcoholic fatty liver disease, and myocardial ischemia/reperfusion injury. In this review, we examined the regulatory relationship between Sestrin2 and the AMPK/mTOR signaling pathway and the effects of Sestrin2 on energy metabolism.
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16
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Wang B J, Wang S, Xiao M, Zhang J, Wang A J, Guo Y, Tang Y, Gu J. Regulatory mechanisms of Sesn2 and its role in multi-organ diseases. Pharmacol Res 2020; 164:105331. [PMID: 33285232 DOI: 10.1016/j.phrs.2020.105331] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 02/07/2023]
Abstract
Sestrin2 (Sesn2) is a powerful anti-oxidant that can prevent acute and chronic diseases. The role of Sesn2 has been thoroughly reviewed in liver, nervous system, and immune system diseases. However, there is a limited number of reviews that have summarized the effects of Sesn2 in heart and vascular diseases, and very less literature-based information is available on involvement of Sesn2 in renal and respiratory pathologies. This review summarizes the latest research on Sesn2 in multi-organ stress responses, with a particular focus on the protective role of Sesn2 in cardiovascular, respiratory, and renal diseases, emphasizing the potential therapeutic benefit of targeting Sesn2 in stress-related diseases.
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Affiliation(s)
- Jie Wang B
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Shudong Wang
- Department of Cardiology at the First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Mengjie Xiao
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Jingjing Zhang
- Department of Cardiology at the First Hospital of China Medical University, Department of Cardiology at the People's Hospital of Liaoning Province, Shenyang, Liaoning, 110016, China
| | - Jie Wang A
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Yuanfang Guo
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Yufeng Tang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, 250014, China
| | - Junlian Gu
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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