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Xie Y, Liu X, Xie D, Zhang W, Zhao H, Guan H, Zhou PK. Voltage-dependent anion channel 1 mediates mitochondrial fission and glucose metabolic reprogramming in response to ionizing radiation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174246. [PMID: 38955266 DOI: 10.1016/j.scitotenv.2024.174246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/04/2024]
Abstract
The ionizing radiation (IR) represents a formidable challenge as an environmental factor to mitochondria, leading to disrupt cellular energy metabolism and posing health risks. Although the deleterious impacts of IR on mitochondrial function are recognized, the specific molecular targets remain incompletely elucidated. In this study, HeLa cells subjected to γ-rays exhibited concomitant oxidative stress, mitochondrial structural alterations, and diminished ATP production capacity. The γ-rays induced a dose-dependent induction of mitochondrial fission, simultaneously manifested by an elevated S616/S637 phosphorylation ratio of the dynamin-related protein 1 (DRP1) and a reduction in the expression of the mitochondrial fusion protein mitofusin 2 (MFN2). Knockdown of DRP1 effectively mitigated γ-rays-induced mitochondrial network damage, implying that DRP1 phosphorylation may act as an effector of radiation-induced mitochondrial damage. The mitochondrial outer membrane protein voltage-dependent anion channel 1 (VDAC1) was identified as a crucial player in IR-induced mitochondrial damage. The VDAC1 inhibitor 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid (DIDS), counteracts the excessive mitochondrial fission induced by γ-rays, consequently rebalancing the glycolytic and oxidative phosphorylation equilibrium. This metabolic shift was uncovered to enhance glycolytic capacity, thus fortifying cellular resilience and elevating the radiosensitivity of cancer cells. These findings elucidate the intricate regulatory mechanisms governing mitochondrial morphology under radiation response. It is anticipated that the development of targeted drugs directed against VDAC1 may hold promise in augmenting the sensitivity of tumor cells to radiotherapy and chemotherapy.
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Affiliation(s)
- Ying Xie
- Key Laboratory of Molecular Epidemiology of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, Changsha 410081, PR China
| | - Xiaochang Liu
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Dafei Xie
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Wen Zhang
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Hongling Zhao
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Hua Guan
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
| | - Ping-Kun Zhou
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
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Zhang J, Zhao Y, Yan L, Tan M, Jin Y, Yin Y, Han L, Ma X, Li Y, Yang T, Jiang T, Li H. Corosolic acid attenuates cardiac ischemia/reperfusion injury through the PHB2/PINK1/parkin/mitophagy pathway. iScience 2024; 27:110448. [PMID: 39091464 PMCID: PMC11293524 DOI: 10.1016/j.isci.2024.110448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/20/2024] [Accepted: 07/01/2024] [Indexed: 08/04/2024] Open
Abstract
Despite advances in treatment, myocardial infarction remains the leading cause of heart failure and death worldwide, and the restoration of coronary blood flow can also cause heart damage. In this study, we found that corosolic acid (CA), also known as plant insulin, significantly protects the heart from ischemia-reperfusion (I/R) injury. In addition, CA can inhibit oxidative stress and improve mitochondrial structure and function in cardiomyocytes. Subsequently, our study demonstrated that CA improved the expression of the mitophagy-related proteins Prohibitin 2 (PHB2), PTEN-induced putative kinase protein-1 (PINK1), and Parkin. Meanwhile, through molecular docking, we found an excellent binding between CA and PHB2 protein. Finally, the knockdown of PHB2 eliminated the protective effect of CA on hypoxia-reoxygenation in cardiomyocytes. Taken together, our study reveals that CA increases mitophagy in cardiomyocytes via the PHB2/PINK1/Parkin signaling pathway, inhibits oxidative stress response, and maintains mitochondrial function, thereby improving cardiac function after I/R.
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Affiliation(s)
- Jun Zhang
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Yongjian Zhao
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Lin Yan
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Mingyue Tan
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Yifeng Jin
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Yunfei Yin
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Lianhua Han
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Xiao Ma
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Yimin Li
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Tianke Yang
- Department of Ophthalmology, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, P.R. China
| | - Tingbo Jiang
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
| | - Hongxia Li
- Department of Cardiology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, P.R. China
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Han Q, Yu Y, Liu X, Guo Y, Shi J, Xue Y, Li Y. The Role of Endothelial Cell Mitophagy in Age-Related Cardiovascular Diseases. Aging Dis 2024:AD.2024.0788. [PMID: 39122456 DOI: 10.14336/ad.2024.0788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Aging is a major risk factor for cardiovascular diseases (CVD), and mitochondrial autophagy impairment is considered a significant physiological change associated with aging. Endothelial cells play a crucial role in maintaining vascular homeostasis and function, participating in various physiological processes such as regulating vascular tone, coagulation, angiogenesis, and inflammatory responses. As aging progresses, mitochondrial autophagy impairment in endothelial cells worsens, leading to the development of numerous cardiovascular diseases. Therefore, regulating mitochondrial autophagy in endothelial cells is vital for preventing and treating age-related cardiovascular diseases. However, there is currently a lack of systematic reviews in this area. To address this gap, we have written this review to provide new research and therapeutic strategies for managing aging and age-related cardiovascular diseases.
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Affiliation(s)
- Quancheng Han
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yiding Yu
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiujuan Liu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yonghong Guo
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jingle Shi
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yitao Xue
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yan Li
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Pang B, Dong G, Pang T, Sun X, Liu X, Nie Y, Chang X. Emerging insights into the pathogenesis and therapeutic strategies for vascular endothelial injury-associated diseases: focus on mitochondrial dysfunction. Angiogenesis 2024:10.1007/s10456-024-09938-4. [PMID: 39060773 DOI: 10.1007/s10456-024-09938-4] [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: 04/24/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024]
Abstract
As a vital component of blood vessels, endothelial cells play a key role in maintaining overall physiological function by residing between circulating blood and semi-solid tissue. Various stress stimuli can induce endothelial injury, leading to the onset of corresponding diseases in the body. In recent years, the importance of mitochondria in vascular endothelial injury has become increasingly apparent. Mitochondria, as the primary site of cellular aerobic respiration and the organelle for "energy information transfer," can detect endothelial cell damage by integrating and receiving various external stress signals. The generation of reactive oxygen species (ROS) and mitochondrial dysfunction often determine the evolution of endothelial cell injury towards necrosis or apoptosis. Therefore, mitochondria are closely associated with endothelial cell function, helping to determine the progression of clinical diseases. This article comprehensively reviews the interconnection and pathogenesis of mitochondrial-induced vascular endothelial cell injury in cardiovascular diseases, renal diseases, pulmonary-related diseases, cerebrovascular diseases, and microvascular diseases associated with diabetes. Corresponding therapeutic approaches are also provided. Additionally, strategies for using clinical drugs to treat vascular endothelial injury-based diseases are discussed, aiming to offer new insights and treatment options for the clinical diagnosis of related vascular injuries.
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Affiliation(s)
- Boxian Pang
- Beijing University of Chinese Medicine, Beijing, China
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
| | | | - Tieliang Pang
- Beijing Anding hospital, Capital Medical University, Beijing, China
| | - Xinyao Sun
- Beijing University of Chinese Medicine, Beijing, China
| | - Xin Liu
- Bioscience Department, University of Nottingham, Nottingham, UK
| | - Yifeng Nie
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China.
| | - Xing Chang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiagge, Xicheng District, Beijing, China.
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5
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Lamb RJ, Griffiths K, Lip GYH, Sorokin V, Frenneaux MP, Feelisch M, Madhani M. ALDH2 polymorphism and myocardial infarction: From alcohol metabolism to redox regulation. Pharmacol Ther 2024; 259:108666. [PMID: 38763322 DOI: 10.1016/j.pharmthera.2024.108666] [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: 12/18/2023] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024]
Abstract
Acute myocardial infarction (AMI) remains a leading cause of death worldwide. Increased formation of reactive oxygen species (ROS) during the early reperfusion phase is thought to trigger lipid peroxidation and disrupt redox homeostasis, leading to myocardial injury. Whilst the mitochondrial enzyme aldehyde dehydrogenase 2 (ALDH2) is chiefly recognised for its central role in ethanol metabolism, substantial experimental evidence suggests an additional cardioprotective role for ALDH2 independent of alcohol intake, which mitigates myocardial injury by detoxifying breakdown products of lipid peroxidation including the reactive aldehydes, malondialdehyde (MDA) and 4-hydroxynonenal (4-HNE). Epidemiological evidence suggests that an ALDH2 mutant variant with reduced activity that is highly prevalent in the East Asian population increases AMI risk. Additional studies have uncovered a strong association between coronary heart disease and this ALDH2 mutant variant. It appears this enzyme polymorphism (in particular, in ALDH2*2/2 carriers) has the potential to have wide-ranging effects on thiol reactivity, redox tone and therefore numerous redox-related signaling processes, resilience of the heart to cope with lifestyle-related and environmental stressors, and the ability of the whole body to achieve redox balance. In this review, we summarize the journey of ALDH2 from a mitochondrial reductase linked to alcohol metabolism, via pre-clinical studies aimed at stimulating ALDH2 activity to reduce myocardial injury to clinical evidence for its protective role in the heart.
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Affiliation(s)
- Reece J Lamb
- Institute of Cardiovascular Sciences, The Medical School, University of Birmingham, United Kingdom
| | - Kayleigh Griffiths
- Institute of Cardiovascular Sciences, The Medical School, University of Birmingham, United Kingdom
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart & Chest Hospital, Liverpool, United Kingdom; Danish Centre for Health Services Research, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Vitaly Sorokin
- Department of Cardiac, Thoracic, and Vascular Surgery, National University Heart Centre, National University Health System, Singapore
| | | | - Martin Feelisch
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton and NIHR Biomedical Research Centre, University Hospital Southampton, Southampton, United Kingdom
| | - Melanie Madhani
- Institute of Cardiovascular Sciences, The Medical School, University of Birmingham, United Kingdom.
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Wang H, Li Y, Cao X, Niu H, Li X, Wang J, Yang J, Xu C, Wang H, Wan S, Li K, Fu S, Yang L. MELATONIN ATTENUATES RENAL ISCHEMIA-REPERFUSION INJURY BY REGULATING MITOCHONDRIAL DYNAMICS AND AUTOPHAGY THROUGH AMPK/DRP1. Shock 2024; 62:74-84. [PMID: 38713551 DOI: 10.1097/shk.0000000000002330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2024]
Abstract
ABSTRACT Ischemia-reperfusion injury (IRI) often stems from an imbalance between mitochondrial dynamics and autophagy. Melatonin mitigates IRI by regulating mitochondrial dynamics. However, the precise molecular mechanism underlying the role of melatonin in reducing IRI through modulating mitochondrial dynamics remains elusive. The objective of this study was to investigate whether pretreatment with melatonin before IRI confers protective effects by modulating mitochondrial dynamics and mitophagy. Melatonin pretreatment was administered to HK-2 cells and live rats before subjecting them to hypoxia-reoxygenation or IRI, respectively. Cells and rat kidney models were evaluated for markers of oxidative stress, autophagy, mitochondrial dynamics, and the expression of adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) and phospho-AMPKα (P-AMPK). After renal IRI, increased mitochondrial fission and autophagy were observed, accompanied by exacerbated cellular oxidative stress injury and aggravated mitochondrial dysfunction. Nevertheless, melatonin pretreatment inhibited mitochondrial fission, promoted mitochondrial fusion, and attenuated autophagy levels. This intervention was correlated with a notable reduction in oxidative stress injury and remarkable restoration of mitochondrial functionality. Ischemia-reperfusion injury led to a decline in P-AMPK levels, whereas melatonin pretreatment increased the level of P-AMPK levels. Silencing AMPK with small interfering RNA exacerbated mitochondrial damage, and in this context, melatonin pretreatment did not alleviate mitochondrial fission or autophagy levels but resulted in sustained oxidative stress damage. Collectively, these findings indicate that melatonin pretreatment shields the kidneys from IRI by mitigating excessive mitochondrial fission, moderating autophagy levels, and preserving appropriate mitochondrial fission, all in an AMPK-dependent manner.
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Affiliation(s)
- Huabin Wang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Yi Li
- Department of Anesthesiology, Lanzhou University Second Hospital, Lanzhou, China
| | - Xichao Cao
- The Second Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Heping Niu
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Xiaoran Li
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Jirong Wang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Jianwei Yang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Changhong Xu
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Hailong Wang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Shun Wan
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Kunpeng Li
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Shengjun Fu
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Li Yang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, China
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Wang Z, Zhang G, Hu S, Fu M, Zhang P, Zhang K, Hao L, Chen S. Research progress on the protective effect of hormones and hormone drugs in myocardial ischemia-reperfusion injury. Biomed Pharmacother 2024; 176:116764. [PMID: 38805965 DOI: 10.1016/j.biopha.2024.116764] [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: 02/21/2024] [Revised: 05/05/2024] [Accepted: 05/17/2024] [Indexed: 05/30/2024] Open
Abstract
Ischemic heart disease (IHD) is a condition where the heart muscle does not receive enough blood flow, leading to cardiac dysfunction. Restoring blood flow to the coronary artery is an effective clinical therapy for myocardial ischemia. This strategy helps lower the size of the myocardial infarction and improves the prognosis of patients. Nevertheless, if the disrupted blood flow to the heart muscle is restored within a specific timeframe, it leads to more severe harm to the previously deprived heart tissue. This condition is referred to as myocardial ischemia/reperfusion injury (MIRI). Until now, there is a dearth of efficacious strategies to prevent and manage MIRI. Hormones are specialized substances that are produced directly into the circulation by endocrine organs or tissues in humans and animals, and they have particular effects on the body. Hormonal medications utilize human or animal hormones as their active components, encompassing sex hormones, adrenaline medications, thyroid hormone medications, and others. While several studies have examined the preventive properties of different endocrine hormones, such as estrogen and hormone analogs, on myocardial injury caused by ischemia-reperfusion, there are other hormone analogs whose mechanisms of action remain unexplained and whose safety cannot be assured. The current study is on hormones and hormone medications, elucidating the mechanism of hormone pharmaceuticals and emphasizing the cardioprotective effects of different endocrine hormones. It aims to provide guidance for the therapeutic use of drugs and offer direction for the examination of MIRI in clinical therapy.
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Affiliation(s)
- Zhongyi Wang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Gaojiang Zhang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Shan Hu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Meilin Fu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Pingyuan Zhang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Kuo Zhang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Liying Hao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China.
| | - Sichong Chen
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China.
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Zhou Y, Qiu T, Wang T, Yu B, Xia K, Guo J, Liu Y, Ma X, Zhang L, Zou J, Chen Z, Zhou J. Research progress on the role of mitochondria in the process of hepatic ischemia-reperfusion injury. Gastroenterol Rep (Oxf) 2024; 12:goae066. [PMID: 38912038 PMCID: PMC11193119 DOI: 10.1093/gastro/goae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/08/2023] [Accepted: 02/26/2024] [Indexed: 06/25/2024] Open
Abstract
During liver ischemia-reperfusion injury, existing mechanisms involved oxidative stress, calcium overload, and the activation of inflammatory responses involve mitochondrial injury. Mitochondrial autophagy, a process that maintains the normal physiological activity of mitochondria, promotes cellular metabolism, improves cellular function, and facilitates organelle renewal. Mitochondrial autophagy is involved in oxidative stress and apoptosis, of which the PINK1-Parkin pathway is a major regulatory pathway, and the deletion of PINK1 and Parkin increases mitochondrial damage, reactive oxygen species production, and inflammatory response, playing an important role in mitochondrial quality regulation. In addition, proper mitochondrial permeability translational cycle regulation can help maintain mitochondrial stability and mitigate hepatocyte death during ischemia-reperfusion injury. This mechanism is also closely related to oxidative stress, calcium overload, and the aforementioned autophagy pathway, all of which leads to the augmentation of the mitochondrial membrane permeability transition pore opening and cause apoptosis. Moreover, the release of mitochondrial DNA (mtDNA) due to oxidative stress further aggravates mitochondrial function impairment. Mitochondrial fission and fusion are non-negligible processes required to maintain the dynamic renewal of mitochondria and are essential to the dynamic stability of these organelles. The Bcl-2 protein family also plays an important regulatory role in the mitochondrial apoptosis signaling pathway. A series of complex mechanisms work together to cause hepatic ischemia-reperfusion injury (HIRI). This article reviews the role of mitochondria in HIRI, hoping to provide new therapeutic clues for alleviating HIRI in clinical practice.
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Affiliation(s)
- Yujie Zhou
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Tao Qiu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Tianyu Wang
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Bo Yu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Kang Xia
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Jiayu Guo
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Yiting Liu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Xiaoxiong Ma
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Long Zhang
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Jilin Zou
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Zhongbao Chen
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Jiangqiao Zhou
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
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Iskandar K, Foo J, Liew AQX, Zhu H, Raman D, Hirpara JL, Leong YY, Babak MV, Kirsanova AA, Armand AS, Oury F, Bellot G, Pervaiz S. A novel MTORC2-AKT-ROS axis triggers mitofission and mitophagy-associated execution of colorectal cancer cells upon drug-induced activation of mutant KRAS. Autophagy 2024; 20:1418-1441. [PMID: 38261660 PMCID: PMC11210925 DOI: 10.1080/15548627.2024.2307224] [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: 12/16/2022] [Accepted: 01/13/2024] [Indexed: 01/25/2024] Open
Abstract
RAS is one of the most commonly mutated oncogenes associated with multiple cancer hallmarks. Notably, RAS activation induces intracellular reactive oxygen species (ROS) generation, which we previously demonstrated as a trigger for autophagy-associated execution of mutant KRAS-expressing cancer cells. Here we report that drug (merodantoin; C1)-induced activation of mutant KRAS promotes phospho-AKT S473-dependent ROS-mediated S616 phosphorylation and mitochondrial localization of DNM1L/DRP1 (dynamin 1 like) and cleavage of the fusion-associated protein OPA1 (OPA1 mitochondrial dynamin like GTPase). Interestingly, accumulation of the outer mitochondrial membrane protein VDAC1 (voltage dependent anion channel 1) is observed in mutant KRAS-expressing cells upon exposure to C1. Conversely, silencing VDAC1 abolishes C1-induced mitophagy, and gene knockdown of either KRAS, AKT or DNM1L rescues ROS-dependent VDAC1 accumulation and stability, thus suggesting an axis of mutant active KRAS-phospho-AKT S473-ROS-DNM1L-VDAC1 in mitochondrial morphology change and cancer cell execution. Importantly, we identified MTOR (mechanistic target of rapamycin kinsase) complex 2 (MTORC2) as the upstream mediator of AKT phosphorylation at S473 in our model. Pharmacological or genetic inhibition of MTORC2 abrogated C1-induced phosphorylation of AKT S473, ROS generation and mitophagy induction, as well as rescued tumor colony forming ability and migratory capacity. Finally, increase in thermal stability of KRAS, AKT and DNM1L were observed upon exposure to C1 only in mutant KRAS-expressing cells. Taken together, our work has unraveled a novel mechanism of selective targeting of mutant KRAS-expressing cancers via MTORC2-mediated AKT activation and ROS-dependent mitofission, which could have potential therapeutic implications given the relative lack of direct RAS-targeting strategies in cancer.Abbreviations: ACTB/ß-actin: actin beta; AKT: AKT serine/threonine kinase; C1/merodantoin: 1,3-dibutyl-2-thiooxo-imidazoldine-4,5-dione; CAT: catalase; CETSA: cellular thermal shift assay; CHX: cycloheximide; DKO: double knockout; DNM1L/DRP1: dynamin 1 like; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; H2O2: hydrogen peroxide; HSPA1A/HSP70-1: heat shock protein family A (Hsp70) member 1A; HSP90AA1/HSP90: heat shock protein 90 alpha family class A member 1; KRAS: KRAS proto-oncogene, GTPase; MAP1LC3B/LC3B, microtubule associated protein 1 light chain 3 beta; LC3B-I: unlipidated form of LC3B; LC3B-II: phosphatidylethanolamine-conjugated form of LC3B; MAPKAP1/SIN1: MAPK associated protein 1; MAPK1/ERK2: mitogen-activated protein kinase 1; MAPK3/ERK1: mitogen-activated protein kinase 3; MFI: mean fluorescence intensity; MiNA: Mitochondrial Network Analysis; MTOR: mechanistic target of rapamycin kinase; MTORC1: mechanistic target of rapamycin kinase complex 1; MTORC2: mechanistic target of rapamycin kinase complex 2; O2.-: superoxide; OMA1: OMA1 zinc metallopeptidase; OPA1: OPA1 mitochondrial dynamin like GTPase; RICTOR: RPTOR independent companion of MTOR complex 2; ROS: reactive oxygen species; RPTOR/raptor: regulatory associated protein of MTOR complex 1; SOD1: superoxide dismutase 1; SOD2: superoxide dismutase 2; SQSTM1/p62: sequestosome 1; VDAC1: voltage dependent anion channel 1; VDAC2: voltage dependent anion channel 2.
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Affiliation(s)
- Kartini Iskandar
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jonathan Foo
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Integrative Science and Engineering Programme (ISEP), NUS Graduate School (NUSGS), National University of Singapore, Singapore
| | - Angeline Qiu Xia Liew
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Integrative Science and Engineering Programme (ISEP), NUS Graduate School (NUSGS), National University of Singapore, Singapore
| | - Haiyuxin Zhu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Deepika Raman
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Yan Yi Leong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Maria V. Babak
- Drug Discovery Laboratory, Department of Chemistry, City University of Hong Kong, Hong Kong, SAR, China
| | - Anna A. Kirsanova
- Drug Discovery Laboratory, Department of Chemistry, City University of Hong Kong, Hong Kong, SAR, China
| | - Anne-Sophie Armand
- Institut Necker Enfants Malades (INEM), INSERM U1151, Université Paris Cité, Paris, France
| | - Franck Oury
- Institut Necker Enfants Malades (INEM), INSERM U1151, Université Paris Cité, Paris, France
| | - Gregory Bellot
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shazib Pervaiz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Integrative Science and Engineering Programme (ISEP), NUS Graduate School (NUSGS), National University of Singapore, Singapore
- NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- NUS Medicine Healthy Longevity Program, National University of Singapore, Singapore
- National University Cancer Institute, National University Health System, Singapore
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10
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Wu J, Yang Y, Lin D, Wang Z, Ma J. SIRT3 and RORα are two prospective targets against mitophagy during simulated ischemia/reperfusion injury in H9c2 cells. Heliyon 2024; 10:e30568. [PMID: 38784556 PMCID: PMC11112282 DOI: 10.1016/j.heliyon.2024.e30568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
Autophagy during myocardial ischemia/reperfusion (MI/R) exacerbates cardiomyocyte injury. Melatonin (Mel) alleviates myocardial damage by regulating mitochondrial function and mitophagy, but the role of mitophagy in melatonin-induced cardioprotection remains unclear. This study aimed to explore the roles of sirtuin3 (SIRT3) and retinoid-related orphan nuclear receptor-α (RORα) in mitophagy during simulated ischemia reperfusion (SIR) in H9c2 cells. Our data showed that mitophagy was excessively activated after SIR injury, which was consistent with reduced cell survival, enhanced oxidative responses and mitochondrial dysfunction in H9c2 myocytes. Melatonin greatly enhanced cell viability, reduced oxidative stress and improved mitochondrial function. The effects of melatonin protection were involved in excessive mitophagy inhibition, as demonstrated by the reduced levels of mitophagy-linked proteins, including Parkin, Beclin1, NIX and BNIP3, and the LC3 II/LC3 I ratio and elevations in p62. Additionally, the decreases in SIRT3 and RORα in H9c2 myocytes after SIR were reversed by melatonin, and the above effects of melatonin were eliminated by small interfering RNA (siRNA)-mediated knockdown of SIRT3 and RORα. In brief, SIRT3 and RORα are two prospective targets in the cardioprotection of melatonin against mitophagy during SIR in H9c2 myocytes.
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Affiliation(s)
- Jinjing Wu
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University-Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Yanli Yang
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University-Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Duomao Lin
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University-Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Zhaoqi Wang
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University-Beijing Institute of Heart Lung and Blood Vessel Diseases, China
| | - Jun Ma
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University-Beijing Institute of Heart Lung and Blood Vessel Diseases, China
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11
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Hu T, Zou HX, Zhang ZY, Wang YC, Hu FJ, Huang WX, Liu JC, Lai SQ, Huang H. Resveratrol protects cardiomyocytes against ischemia/reperfusion-induced ferroptosis via inhibition of the VDAC1/GPX4 pathway. Eur J Pharmacol 2024; 971:176524. [PMID: 38561102 DOI: 10.1016/j.ejphar.2024.176524] [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: 12/10/2023] [Revised: 03/07/2024] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
The present study aimed to explore how resveratrol (Res) confers myocardial protection by attenuating ferroptosis. In vivo and in vitro myocardial ischemia/reperfusion injury (MIRI) models were established, with or without Res pretreatment. The results showed that Res pretreatment effectively attenuated MIRI, as evidenced by increased cell viability, reduced lactate dehydrogenase activity, decreased infarct size, and maintained cardiac function. Moreover, Res pretreatment inhibited MIRI-induced ferroptosis, as shown by improved mitochondrial integrity, increased glutathione level, decreased prostaglandin-endoperoxide synthase 2 level, inhibited iron overload, and abnormal lipid peroxidation. Of note, Res pretreatment decreased or increased voltage-dependent anion channel 1/glutathione peroxidase 4 (VDAC1/GPX4) expression, which was increased or decreased via anoxia/reoxygenation (A/R) treatment, respectively. However, the overexpression of VDAC1 via pAd/VDAC1 and knockdown of GPX4 through Si-GPX4 reversed the protective effect of Res in A/R-induced H9c2 cells, whereas the inhibition of GPX4 with RSL3 abolished the protective effect of Res on mice treated with ischemia/reperfusion.Interestingly, knockdown of VDAC1 by Si-VDAC1 promoted the protective effect of Res on A/R-induced H9c2 cells and the regulation of GPX4. Finally, the direct interaction between VDAC1 and GPX4 was determined using co-immunoprecipitation. In conclusion, Res pretreatment could protect the myocardium against MIRI-induced ferroptosis via the VDAC1/GPX4 signaling pathway.
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Affiliation(s)
- Tie Hu
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China; Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Hua-Xi Zou
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Ze-Yu Zhang
- Institute of Nanchang University Trauma Medicine, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330000, Nanchang, China
| | - Yi-Cheng Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Fa-Jia Hu
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China; Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Wen-Xiong Huang
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Ji-Chun Liu
- Department of Cardiovascular Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Song-Qing Lai
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China.
| | - Huang Huang
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi, China.
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12
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Hu M, Ladowski JM, Xu H. The Role of Autophagy in Vascular Endothelial Cell Health and Physiology. Cells 2024; 13:825. [PMID: 38786047 PMCID: PMC11120581 DOI: 10.3390/cells13100825] [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: 03/27/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
Autophagy is a highly conserved cellular recycling process which enables eukaryotes to maintain both cellular and overall homeostasis through the catabolic breakdown of intracellular components or the selective degradation of damaged organelles. In recent years, the importance of autophagy in vascular endothelial cells (ECs) has been increasingly recognized, and numerous studies have linked the dysregulation of autophagy to the development of endothelial dysfunction and vascular disease. Here, we provide an overview of the molecular mechanisms underlying autophagy in ECs and our current understanding of the roles of autophagy in vascular biology and review the implications of dysregulated autophagy for vascular disease. Finally, we summarize the current state of the research on compounds to modulate autophagy in ECs and identify challenges for their translation into clinical use.
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Affiliation(s)
| | - Joseph M. Ladowski
- Transplant and Immunobiology Research, Department of Surgery, Duke University, Durham, NC 27710, USA;
| | - He Xu
- Transplant and Immunobiology Research, Department of Surgery, Duke University, Durham, NC 27710, USA;
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13
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Zhou YT, Li S, Du SL, Zhao JH, Cai YQ, Zhang ZQ. The multifaceted role of macrophage mitophagy in SiO 2-induced pulmonary fibrosis: A brief review. J Appl Toxicol 2024. [PMID: 38644760 DOI: 10.1002/jat.4612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 04/23/2024]
Abstract
Prolonged exposure to environments with high concentrations of crystalline silica (CS) can lead to silicosis. Macrophages play a crucial role in the pathogenesis of silicosis. In the process of silicosis, silica (SiO2) invades alveolar macrophages (AMs) and induces mitophagy which usually exists in three states: normal, excessive, and/or deficiency. Different mitophagy states lead to corresponding toxic responses, including successful macrophage repair, injury, necrosis, apoptosis, and even pulmonary fibrosis. This is a complex process accompanied by various cytokines. Unfortunately, the details have not been fully systematically summarized. Therefore, it is necessary to elucidate the role of macrophage mitophagy in SiO2-induced pulmonary fibrosis by systematic analysis on the literature reports. In this review, we first summarized the current data on the macrophage mitophagy in the development of SiO2-induced pulmonary fibrosis. Then, we introduce the molecular mechanism on how SiO2-induced mitophagy causes pulmonary fibrosis. Finally, we focus on introducing new therapies based on newly developed mitophagy-inducing strategies. We conclude that macrophage mitophagy plays a multifaceted role in the progression of SiO2-induced pulmonary fibrosis, and reprogramming the macrophage mitophagy state accordingly may be a potential means of preventing and treating pulmonary fibrosis.
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Affiliation(s)
- Yu-Ting Zhou
- Department of Public Health, Shandong First Medical University, Jinan, China
- Department of Public Health, Jining Medical University, Jining, China
| | - Shuang Li
- Department of Public Health, Jining Medical University, Jining, China
| | - Shu-Ling Du
- Department of Public Health, Jining Medical University, Jining, China
| | - Jia-Hui Zhao
- Department of Public Health, Jining Medical University, Jining, China
| | | | - Zhao-Qiang Zhang
- Department of Public Health, Jining Medical University, Jining, China
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14
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Boengler K, Eickelmann C, Kleinbongard P. Mitochondrial Kinase Signaling for Cardioprotection. Int J Mol Sci 2024; 25:4491. [PMID: 38674076 PMCID: PMC11049936 DOI: 10.3390/ijms25084491] [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: 03/01/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Myocardial ischemia/reperfusion injury is reduced by cardioprotective adaptations such as local or remote ischemic conditioning. The cardioprotective stimuli activate signaling cascades, which converge on mitochondria and maintain the function of the organelles, which is critical for cell survival. The signaling cascades include not only extracellular molecules that activate sarcolemmal receptor-dependent or -independent protein kinases that signal at the plasma membrane or in the cytosol, but also involve kinases, which are located to or within mitochondria, phosphorylate mitochondrial target proteins, and thereby modify, e.g., respiration, the generation of reactive oxygen species, calcium handling, mitochondrial dynamics, mitophagy, or apoptosis. In the present review, we give a personal and opinionated overview of selected protein kinases, localized to/within myocardial mitochondria, and summarize the available data on their role in myocardial ischemia/reperfusion injury and protection from it. We highlight the regulation of mitochondrial function by these mitochondrial protein kinases.
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Affiliation(s)
- Kerstin Boengler
- Institute of Physiology, Justus-Liebig University, 35392 Giessen, Germany
| | - Chantal Eickelmann
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, 45147 Essen, Germany; (C.E.); (P.K.)
| | - Petra Kleinbongard
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, 45147 Essen, Germany; (C.E.); (P.K.)
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15
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Deng J, Liu Q, Ye L, Wang S, Song Z, Zhu M, Qiang F, Zhou Y, Guo Z, Zhang W, Chen T. The Janus face of mitophagy in myocardial ischemia/reperfusion injury and recovery. Biomed Pharmacother 2024; 173:116337. [PMID: 38422659 DOI: 10.1016/j.biopha.2024.116337] [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: 01/04/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024] Open
Abstract
In myocardial ischemia/reperfusion injury (MIRI), moderate mitophagy is a protective or adaptive mechanism because of clearing defective mitochondria accumulates during MIRI. However, excessive mitophagy lead to an increase in defective mitochondria and ultimately exacerbate MIRI by causing overproduction or uncontrolled production of mitochondria. Phosphatase and tensin homolog (PTEN)-induced kinase 1 (Pink1), Parkin, FUN14 domain containing 1 (FUNDC1) and B-cell leukemia/lymphoma 2 (BCL-2)/adenovirus E1B19KD interaction protein 3 (BNIP3) are the main mechanistic regulators of mitophagy in MIRI. Pink1 and Parkin are mitochondrial surface proteins involved in the ubiquitin-dependent pathway, while BNIP3 and FUNDC1 are mitochondrial receptor proteins involved in the non-ubiquitin-dependent pathway, which play a crucial role in maintaining mitochondrial homeostasis and mitochondrial quality. These proteins can induce moderate mitophagy or inhibit excessive mitophagy to protect against MIRI but may also trigger excessive mitophagy or insufficient mitophagy, thereby worsening the condition. Understanding the actions of these mitophagy mechanistic proteins may provide valuable insights into the pathological mechanisms underlying MIRI development. Based on the above background, this article reviews the mechanism of mitophagy involved in MIRI through Pink1/Parkin pathway and the receptor mediated pathway led by FUNDC1 and BNIP3, as well as the related drug treatment, aim to provide effective strategies for the prevention and treatment of MIRI.
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Affiliation(s)
- Jiaxin Deng
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Qian Liu
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Linxi Ye
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Shuo Wang
- State Key Laboratory of Modern Chinese Medicine, Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae for the Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhenyan Song
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Mingyan Zhu
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Fangfang Qiang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Yulin Zhou
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Zhen Guo
- Hunan Provincial Key Laboratory of the Fundamental and Clinical Research on Functional Nucleic Acid, Changsha Medical University, Changsha 410219, China; Hunan Provincial Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha Medical University, Changsha 410219, China; Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha Medical University, Changsha 410219, China.
| | - Wei Zhang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China.
| | - Ting Chen
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China; National Key Laboratory Cultivation Base of Chinese Medicinal Powder & Innovative Medicinal Jointly Established by Province and Ministry, Changsha 410208, China.
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16
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Xiao L, Sun R, Han Y, Xia L, Lin K, Fu W, Zhong K, Ye Y. NAMPT‑NAD + is involved in the senescence‑delaying effects of saffron in aging mice. Exp Ther Med 2024; 27:123. [PMID: 38410190 PMCID: PMC10895469 DOI: 10.3892/etm.2024.12411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 12/29/2023] [Indexed: 02/28/2024] Open
Abstract
As the proportion of the elderly population grows rapidly, the senescence-delaying effects of Traditional Chinese Medicine is being investigated. The aim of the present study was to investigate the senescence-delaying effects of saffron in naturally aging mice. The active ingredients in an aqueous saffron extract were determined using high-performance liquid chromatography (HPLC). Mice were divided into saffron (8- and 16-months-old) and control groups (3-, 8-, and 16-months-old), and saffron extract was administered to the former groups for 8 weeks. The open field test and Barnes maze test were used to evaluate the locomotor activity, learning and memory function of the mice. The levels of inflammatory factors in the brain were determined by ELISA. In addition, the activities of acetylcholinesterase (AChE) and superoxide dismutase, and the contents of malondialdehyde and nicotinamide adenine dinucleotide (NAD+) were detected by enzyme immunoassay, and the content of NAMPT was detected by ELISA, western blotting and reverse transcription-quantitative PCR. The cellular distribution of NAMPT and synaptic density were evaluated by immunofluorescence, and the pathological morphologies of the liver, skin, kidneys were observed by hematoxylin and eosin staining. HPLC revealed that the crocin and picrocrocin contents of the saffron extract were 19.56±0.14 and 12.00±0.13%, respectively. Saffron exhibited the potential to improve the learning and memory function in aging mice as it increased synaptic density and decreased AChE activity. Also, saffron ameliorated the pathological changes associated with organ aging, manifested by increasing the number of hepatocytes and the thickness of the skin, and preventing the aging-induced ballooning and bleeding in the kidneys. Furthermore, saffron increased the contents of NAMPT and NAD+ in the brain and decreased the content of NAMPT in the serum. In addition, it changed the cellular distribution of NAMPT in aging mice, manifested as reduced NAMPT expression in microglia and astrocytes, and increased NAMPT expression in neurons. Saffron also decreased the contents of proinflammatory cytokines and oxidative stress factors in aging mice. Altogether, these findings indicate that saffron exerts senescence-delaying effects in naturally aging mice, which may be associated with the NAMPT-NAD+ pathway.
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Affiliation(s)
- Ling Xiao
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
| | - Runxuan Sun
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
| | - Yubin Han
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
| | - Linhan Xia
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
| | - Kexin Lin
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
| | - Wanyan Fu
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
| | - Kai Zhong
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
| | - Yilu Ye
- Department of Pharmacology, School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Hangzhou, Zhejiang 311300, P.R. China
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17
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Boutonnet L, Mallard J, Charles AL, Hucteau E, Gény B, Lejay A, Grandperrin A. Autologous mitochondrial transplantation in male mice as a strategy to prevent deleterious effects of peripheral ischemia-reperfusion. Am J Physiol Cell Physiol 2024; 326:C449-C456. [PMID: 38145293 DOI: 10.1152/ajpcell.00639.2023] [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: 11/26/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Ischemia-reperfusion (IR) is known to induce severe tissue damage, notably through mitochondrial dysfunction. Mitochondrial transplantation has emerged as a promising therapeutic strategy in cardiac IR; however, few studies have previously assessed its efficacy in the context of peripheral IR. Therefore, the objective of this study was to assess the effect of mitochondrial transplantation in a hindlimb model of IR injury. Thirty-six SWISS mice were divided into three groups: control (CTL, n = 12), ischemia-reperfusion (IR, n = 12), and IR with mitochondrial transplantation (MT, n = 12). Ischemia (2 h) was induced using the tourniquet model around the right hind limb in the IR and MT groups. In MT group, mitochondria isolated from the right rectus muscle, a nonischemic region, were injected shortly before reperfusion. Mitochondrial respiration, calcium retention capacity, and Western blotting analysis were performed 2 h after reperfusion. Compared with the CTL group, IR led to a decrease in the mitochondrial respiratory capacity, particularly for the basal state (-30%; P = 0.015), oxidative phosphorylation (-36%; P = 0.024), and calcium retention capacity (-45%; P = 0.007). Interestingly, mitochondrial transplantation partially restored these functions since no differences between MT and CTL groups were found. In addition, the administration of healthy mitochondria resulted in a positive regulation of redox balance and mitochondrial dynamics within the skeletal muscle. Although further investigations are needed to better characterize underlying mechanisms, mitochondrial transplantation represents a promising strategy in the setting of IR-induced muscular damage.NEW & NOTEWORTHY Ischemia-reperfusion injury leads to severe muscular damage. Even if prompt revascularization is the treatment of choice, muscular alterations can lead to severe sequalae as mitochondrial dysfunction. Accordingly, adjunctive strategies are needed to overcome the muscular damage. Mitochondrial transplantation has shown beneficial effects in cardiac ischemia-reperfusion, but its role in peripheral muscle is not well established. In this study, we found that mitochondrial transplantation partially restored muscular function when submitted to ischemia reperfusion.
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Affiliation(s)
- Lauréline Boutonnet
- Mitochondria, Oxidative Stress and Muscular Protection Laboratory (UR 3072), Biomedicine Research Centre of Strasbourg CRBS, Strasbourg, France
| | - Joris Mallard
- Mitochondria, Oxidative Stress and Muscular Protection Laboratory (UR 3072), Biomedicine Research Centre of Strasbourg CRBS, Strasbourg, France
- Institut de Cancérologie Strasbourg Europe (ICANS), Strasbourg, France
- Faculty of Sports Science, University of Strasbourg, Strasbourg, France
| | - Anne-Laure Charles
- Mitochondria, Oxidative Stress and Muscular Protection Laboratory (UR 3072), Biomedicine Research Centre of Strasbourg CRBS, Strasbourg, France
- Faculty of Medicine, University of Strasbourg, Strasbourg, France
| | - Elyse Hucteau
- Mitochondria, Oxidative Stress and Muscular Protection Laboratory (UR 3072), Biomedicine Research Centre of Strasbourg CRBS, Strasbourg, France
- Institut de Cancérologie Strasbourg Europe (ICANS), Strasbourg, France
- Faculty of Sports Science, University of Strasbourg, Strasbourg, France
| | - Bernard Gény
- Mitochondria, Oxidative Stress and Muscular Protection Laboratory (UR 3072), Biomedicine Research Centre of Strasbourg CRBS, Strasbourg, France
- Faculty of Medicine, University of Strasbourg, Strasbourg, France
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, Strasbourg, France
| | - Anne Lejay
- Mitochondria, Oxidative Stress and Muscular Protection Laboratory (UR 3072), Biomedicine Research Centre of Strasbourg CRBS, Strasbourg, France
- Faculty of Medicine, University of Strasbourg, Strasbourg, France
- Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France
| | - Antoine Grandperrin
- Mitochondria, Oxidative Stress and Muscular Protection Laboratory (UR 3072), Biomedicine Research Centre of Strasbourg CRBS, Strasbourg, France
- Faculty of Sports Science, University of Strasbourg, Strasbourg, France
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18
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Salami OM, Habimana O, Peng JF, Yi GH. Therapeutic Strategies Targeting Mitochondrial Dysfunction in Sepsis-induced Cardiomyopathy. Cardiovasc Drugs Ther 2024; 38:163-180. [PMID: 35704247 DOI: 10.1007/s10557-022-07354-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/06/2022] [Indexed: 11/03/2022]
Abstract
Sepsis is an increasingly worldwide problem; it is currently regarded as a complex life-threatening dysfunction of one or more organs as a result of dysregulated host immune response to infections. The heart is one of the most affected organs, as roughly 10% to 70% of sepsis cases are estimated to turn into sepsis-induced cardiomyopathy (SIC). SIC can be defined as a reversible myocardial dysfunction characterized by dilated ventricles, impaired contractility, and decreased ejection fraction. Mitochondria play a critical role in the normal functioning of cardiac tissues as the heart is highly dependent on its production of adenosine triphosphate (ATP), its damage during SIC includes morphology impairment, mitophagy, biogenesis disequilibrium, electron transport chain disturbance, molecular damage from the actions of pro-inflammatory cytokines and many other different impairments that are major contributing factors to the severity of SIC. Although mitochondria-targeted therapies usage is still inadequate in clinical settings, the preclinical study outcomes promise that the implementation of these therapies may effectively treat SIC. This review summarizes the different therapeutic strategies targeting mitochondria structure, quality, and quantity abnormalities for the treatment of SIC.
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Affiliation(s)
| | - Olive Habimana
- International College, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
| | - Jin-Fu Peng
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
| | - Guang-Hui Yi
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China.
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China.
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19
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El-Sayed SF, Abdelhamid AM, ZeinElabdeen SG, El-Wafaey DI, Moursi SMM. Melatonin enhances captopril mediated cardioprotective effects and improves mitochondrial dynamics in male Wistar rats with chronic heart failure. Sci Rep 2024; 14:575. [PMID: 38182706 PMCID: PMC10770053 DOI: 10.1038/s41598-023-50730-z] [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: 07/15/2023] [Accepted: 12/23/2023] [Indexed: 01/07/2024] Open
Abstract
Mitochondrial dysfunction is a recent emerging research scope that proved to be involved in many cardiovascular diseases culminating in chronic heart failure (CHF), which remains one of the primary causes of morbidity and mortality. This study investigated the added cardio-protective effects of exogenous melatonin administration to conventional captopril therapy in isoproterenol (ISO) exposed rats with CHF. Five groups of Wistar rats were recruited; (I): Control group, (II): (ISO group), (III): (ISO + captopril group), (IV): (ISO + melatonin group) and (V): (ISO + melatonin/captopril group). Cardiac function parameters and some oxidant, inflammatory and fibrotic markers were investigated. Moreover; mRNA expression of mitochondrial mitophagy [parkin & PTEN induced kinase 1 (PINK1)], biogenesis [Peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α)], fusion [mitofusin 2 (Mfn2)] and fission [dynamin-related protein 1 (DRP-1)] parameters in rat's myocardium were evaluated. Rats' myocardium was histo-pathologically and immunohistochemically evaluated for Beclin1 and Sirt3 expression. The present study revealed that captopril and melatonin ameliorated cardiac injury, oxidative stress biomarkers, and pro-inflammatory cytokines in ISO-exposed rats. These protective effects could be attributed to mitochondrial dynamic proteins control (i.e. enhanced the mRNA expression of parkin, PINK1, PGC-1α and Mfn2, while reduced DRP-1 mRNA expression). Also, Beclin1 and Sirt3 cardiac immunoreactivity were improved. Combined captopril and melatonin therapy showed a better response than either agent alone. Melatonin enhanced myocardial mitochondrial dynamics and Sirt3 expression in CHF rats and may represent a promising upcoming therapy added to conventional heart failure treatment.
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Affiliation(s)
- Sherein F El-Sayed
- Medical Physiology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | | | | | - Dalia Ibrahim El-Wafaey
- Human Anatomy and Embryology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | - Suzan M M Moursi
- Medical Physiology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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20
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Momeni Z, Danesh S, Ahmadpour M, Eshraghi R, Farkhondeh T, Pourhanifeh MH, Samarghandian S. Protective Roles and Therapeutic Effects of Gallic Acid in the Treatment of Cardiovascular Diseases: Current Trends and Future Directions. Curr Med Chem 2024; 31:3733-3751. [PMID: 37815180 DOI: 10.2174/0109298673259299230921150030] [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: 05/06/2023] [Revised: 07/19/2023] [Accepted: 08/18/2023] [Indexed: 10/11/2023]
Abstract
Cardiovascular diseases (CVDs) are serious life-threatening illnesses and significant problematic issues for public health having a heavy economic burden on all society worldwide. The high incidence of these diseases as well as high mortality rates make them the leading causes of death and disability. Therefore, finding novel and more effective therapeutic methods is urgently required. Gallic acid, an herbal medicine with numerous biological properties, has been utilized in the treatment of various diseases for thousands of years. It has been demonstrated that gallic acid possesses pharmacological potential in regulating several molecular and cellular processes such as apoptosis and autophagy. Moreover, gallic acid has been investigated in the treatment of CVDs both in vivo and in vitro. Herein, we aimed to review the available evidence on the therapeutic application of gallic acid for CVDs including myocardial ischemia-reperfusion injury and infarction, drug-induced cardiotoxicity, hypertension, cardiac fibrosis, and heart failure, with a focus on underlying mechanisms.
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Affiliation(s)
- Zahra Momeni
- Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Sepideh Danesh
- Research Hub Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Ahmadpour
- Research Hub Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Eshraghi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Tahereh Farkhondeh
- Department of Toxicology and Pharmacology, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Hossein Pourhanifeh
- Research Hub Institute, Tehran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Saeed Samarghandian
- University of Neyshabur Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
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21
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Chang X, Zhou S, Liu J, Wang Y, Guan X, Wu Q, Liu Z, Liu R. Zishenhuoxue decoction-induced myocardial protection against ischemic injury through TMBIM6-VDAC1-mediated regulation of calcium homeostasis and mitochondrial quality surveillance. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 132:155331. [PMID: 38870748 DOI: 10.1016/j.phymed.2023.155331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/07/2023] [Accepted: 12/30/2023] [Indexed: 06/15/2024]
Abstract
BACKGROUND Zishenhuoxue decoction (ZSHX), a Chinese herbal medicine, exhibits myocardial and vascular endothelial protective properties. The intricate regulatory mechanisms underlying myocardial ischemic injury and its association with dysfunctional mitochondrial quality surveillance (MQS) remain elusive. HYPOTHESIS/PURPOSE To study the protective effect of ZSHX on ischemic myocardial injury in mice using a TMBIM6 gene-modified animal model and mitochondrial quality control-related experiments. STUDY DESIGN Using model animals and myocardial infarction surgery-induced ischemic myocardial injury TMBIM6 gene-modified mouse models, the pharmacological activity of ZSHX in inhibiting ischemic myocardial injury and mitochondrial homeostasis disorder in vivo was tested. METHODS Our focal point entailed scrutinizing the impact of ZSHX on ischemic myocardial impairment through the prism of TMBIM6. This endeavor was undertaken utilizing mice characterized by heart-specific TMBIM6 knockout (TMBIM6CKO) and their counterparts, the TMBIM6 transgenic (TMBIM6TG) and VDAC1 transgenic (VDAC1TG) mice. RESULTS ZSHX demonstrated dose-dependent effectiveness in mitigating ischemic myocardial injury and enhancing mitochondrial integrity. TMBIM6CKO hindered ZSHX's cardio-therapeutic and mitochondrial protective effects, while ZSHX's benefits persisted in TMBIM6TG mice. TMBIM6CKO also blocked ZSHX's regulation of mitochondrial function in HR-treated cardiomyocytes. Hypoxia disrupted the MQS in cardiomyocytes, including calcium overload, excessive fission, mitophagy issues, and disrupted biosynthesis. ZSHX counteracted these effects, thereby normalizing MQS and inhibiting calcium overload and cardiomyocyte necroptosis. Our results also showed that hypoxia-induced TMBIM6 blockade resulted in the over-activation of VDAC1, a major mitochondrial calcium uptake pathway, while ZSHX could increase the expression of TMBIM6 and inhibit VDAC1-mediated calcium overload and MQS abnormalities. CONCLUSIONS Our findings suggest that ZSHX regulates mitochondrial calcium homeostasis and MQS abnormalities through a TMBIM6-VDAC1 interaction mechanism, which helps to treat ischemic myocardial injury and provides myocardial protection. This study also offers insights for the clinical translation and application of mitochondrial-targeted drugs in cardiomyocytess.
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Affiliation(s)
- Xing Chang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China
| | - Siyuan Zhou
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China
| | - Jinfeng Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China
| | - Yanli Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China
| | - Xuanke Guan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China
| | - Qiaomin Wu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China
| | - Zhiming Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China.
| | - Ruxiu Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiange, Xicheng District, Beijing 100053, China.
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22
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Zhang X, Zhou H, Chang X. Involvement of mitochondrial dynamics and mitophagy in diabetic endothelial dysfunction and cardiac microvascular injury. Arch Toxicol 2023; 97:3023-3035. [PMID: 37707623 DOI: 10.1007/s00204-023-03599-w] [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: 07/26/2023] [Accepted: 08/30/2023] [Indexed: 09/15/2023]
Abstract
Endothelial cells (ECs), found in the innermost layer of blood vessels, are crucial for maintaining the structure and function of coronary microcirculation. Dysregulated coronary microcirculation poses a fundamental challenge in diabetes-related myocardial microvascular injury, impacting myocardial blood perfusion, thrombogenesis, and inflammation. Extensive research aims to understand the mechanistic connection and functional relationship between cardiac EC dysfunction and the development, diagnosis, and treatment of diabetes-related myocardial microvascular injury. Despite the low mitochondrial content in ECs, mitochondria act as sensors of environmental and cellular stress, influencing EC viability, structure, and function. Mitochondrial dynamics and mitophagy play a vital role in orchestrating mitochondrial responses to various stressors by regulating morphology, localization, and degradation. Impaired mitochondrial dynamics or reduced mitophagy is associated with EC dysfunction, serving as a potential molecular basis and promising therapeutic target for diabetes-related myocardial microvascular injury. This review introduces newly recognized mechanisms of damaged coronary microvasculature in diabetes-related microvascular injury and provides updated insights into the molecular aspects of mitochondrial dynamics and mitophagy. Additionally, novel targeted therapeutic approaches against diabetes-related microvascular injury or endothelial dysfunction, focusing on mitochondrial fission and mitophagy in endothelial cells, are summarized.
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Affiliation(s)
- Xiao Zhang
- Dermatology, Liaocheng Hospital of Traditional Chinese Medicine, Liaocheng, 252000, China
| | - Hao Zhou
- Department of Cardiology, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing, 100048, China.
| | - Xing Chang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, 5 Beixiagge, Xicheng District, Beijing, 100053, China.
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23
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Yang X, Zhang Y, Luo JX, Zhu T, Ran Z, Mu BR, Lu MH. Targeting mitophagy for neurological disorders treatment: advances in drugs and non-drug approaches. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:3503-3528. [PMID: 37535076 DOI: 10.1007/s00210-023-02636-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 07/18/2023] [Indexed: 08/04/2023]
Abstract
Mitochondria serve as a vital energy source for nerve cells. The mitochondrial network also acts as a defense mechanism against external stressors that can threaten the stability of the nervous system. However, excessive accumulation of damaged mitochondria can lead to neuronal death. Mitophagy is an essential pathway in the mitochondrial quality control system and can protect neurons by selectively removing damaged mitochondria. In most neurological disorders, dysfunctional mitochondria are a common feature, and drugs that target mitophagy can improve symptoms. Here, we reviewed the role of mitophagy in Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, stroke, and traumatic brain injuries. We also summarized drug and non-drug approaches to promote mitophagy and described their therapeutic role in neurological disorders in order to provide valuable insight into the potential therapeutic agents available for neurological disease treatment. However, most studies on mitophagy regulation are based on preclinical research using cell and animal models, which may not accurately reflect the effects in humans. This poses a challenge to the clinical application of drugs targeting mitophagy. Additionally, these drugs may carry the risk of intolerable side effects and toxicity. Future research should focus on the development of safer and more targeted drugs for mitophagy.
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Affiliation(s)
- Xiong Yang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yu Zhang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jia-Xin Luo
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Tao Zhu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Zhao Ran
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ben-Rong Mu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Mei-Hong Lu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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24
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Yang Y, Wang P, Guo J, Ma T, Hu Y, Huang L, Xing B, He Y, Xi J. Zinc Overload Induces Damage to H9c2 Cardiomyocyte Through Mitochondrial Dysfunction and ROS-Mediated Mitophagy. Cardiovasc Toxicol 2023; 23:388-405. [PMID: 37845565 DOI: 10.1007/s12012-023-09811-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/23/2023] [Indexed: 10/18/2023]
Abstract
Zinc homeostasis is essential for maintaining redox balance, cell proliferation, and apoptosis. However, excessive zinc exposure is toxic and leads to mitochondrial dysfunction. In this study, we established a zinc overload model by treating rat cardiomyocyte H9c2 cells with Zn2+ at different concentrations. Our results showed that zinc overload increased LDH and reactive oxygen species (ROS) levels, leading to cell death, mitochondrial membrane potential decrease and impaired mitochondrial function and dynamics. Furthermore, zinc overload activated the PINK1/Parkin signaling pathway and induced mitochondrial autophagy via ROS, while NAC inhibited mitophagy and weakened the activation of PINK1/Parkin pathway, thereby preserving mitochondrial biogenesis. In addition, our data also showed that Mfn2 deletion increased ROS production and exacerbated cytotoxicity induced by zinc overload. Our results therefore suggest that Zn2+-induced ROS generation causes mitochondrial autophagy and mitochondrial dysfunction, damaging H9c2 cardiomyocytes. Additionally, Mfn2 may play a key role in zinc ion-mediated endoplasmic reticulum and mitochondrial interactions. Our results provide a new perspective on zinc-induced toxicology.
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Affiliation(s)
- Ying Yang
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Pei Wang
- School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Jiabao Guo
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China
| | - Tingting Ma
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China
| | - Youcheng Hu
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Luyao Huang
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Bohan Xing
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Yonggui He
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China.
- Affiliated Hospital, North China University of Science and Technology, Tangshan, China.
| | - Jinkun Xi
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China.
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China.
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25
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Chen S, Zou Y, Song C, Cao K, Cai K, Wu Y, Zhang Z, Geng D, Sun W, Ouyang N, Zhang N, Li Z, Sun G, Zhang Y, Sun Y, Zhang Y. The role of glycolytic metabolic pathways in cardiovascular disease and potential therapeutic approaches. Basic Res Cardiol 2023; 118:48. [PMID: 37938421 PMCID: PMC10632287 DOI: 10.1007/s00395-023-01018-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/09/2023]
Abstract
Cardiovascular disease (CVD) is a major threat to human health, accounting for 46% of non-communicable disease deaths. Glycolysis is a conserved and rigorous biological process that breaks down glucose into pyruvate, and its primary function is to provide the body with the energy and intermediate products needed for life activities. The non-glycolytic actions of enzymes associated with the glycolytic pathway have long been found to be associated with the development of CVD, typically exemplified by metabolic remodeling in heart failure, which is a condition in which the heart exhibits a rapid adaptive response to hypoxic and hypoxic conditions, occurring early in the course of heart failure. It is mainly characterized by a decrease in oxidative phosphorylation and a rise in the glycolytic pathway, and the rise in glycolysis is considered a hallmark of metabolic remodeling. In addition to this, the glycolytic metabolic pathway is the main source of energy for cardiomyocytes during ischemia-reperfusion. Not only that, the auxiliary pathways of glycolysis, such as the polyol pathway, hexosamine pathway, and pentose phosphate pathway, are also closely related to CVD. Therefore, targeting glycolysis is very attractive for therapeutic intervention in CVD. However, the relationship between glycolytic pathway and CVD is very complex, and some preclinical studies have confirmed that targeting glycolysis does have a certain degree of efficacy, but its specific role in the development of CVD has yet to be explored. This article aims to summarize the current knowledge regarding the glycolytic pathway and its key enzymes (including hexokinase (HK), phosphoglucose isomerase (PGI), phosphofructokinase-1 (PFK1), aldolase (Aldolase), phosphoglycerate metatase (PGAM), enolase (ENO) pyruvate kinase (PKM) lactate dehydrogenase (LDH)) for their role in cardiovascular diseases (e.g., heart failure, myocardial infarction, atherosclerosis) and possible emerging therapeutic targets.
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Affiliation(s)
- Shuxian Chen
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Yuanming Zou
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Chunyu Song
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Kexin Cao
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Kexin Cai
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Yanjiao Wu
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Zhaobo Zhang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Danxi Geng
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Wei Sun
- Department of Thyroid Surgery, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Nanxiang Ouyang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Naijin Zhang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
- Institute of Health Sciences, China Medical University, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
- Key Laboratory of Reproductive and Genetic Medicine, China Medical University, National Health Commission, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Zhao Li
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Guozhe Sun
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
| | - Yixiao Zhang
- Department of Urology Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning Province, People's Republic of China.
| | - Yingxian Sun
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
- Institute of Health Sciences, China Medical University, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Ying Zhang
- Department of Cardiology, The First Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, People's Republic of China.
- Institute of Health Sciences, China Medical University, 77 Puhe Road, Shenbei New District, Shenyang, 110122, Liaoning Province, People's Republic of China.
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Zhang X, Zheng Y, Wang Z, Gan J, Yu B, Lu B, Jiang X. Melatonin as a therapeutic agent for alleviating endothelial dysfunction in cardiovascular diseases: Emphasis on oxidative stress. Biomed Pharmacother 2023; 167:115475. [PMID: 37722190 DOI: 10.1016/j.biopha.2023.115475] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/03/2023] [Accepted: 09/07/2023] [Indexed: 09/20/2023] Open
Abstract
The vascular endothelium is vital in maintaining cardiovascular health by regulating vascular permeability and tone, preventing thrombosis, and controlling vascular inflammation. However, when oxidative stress triggers endothelial dysfunction, it can lead to chronic cardiovascular diseases (CVDs). This happens due to oxidative stress-induced mitochondrial dysfunction, inflammatory responses, and reduced levels of nitric oxide. These factors cause damage to endothelial cells, leading to the acceleration of CVD progression. Melatonin, a natural antioxidant, has been shown to inhibit oxidative stress and stabilize endothelial function, providing cardiovascular protection. The clinical application of melatonin in the prevention and treatment of CVDs has received widespread attention. In this review, based on bibliometric studies, we first discussed the relationship between oxidative stress-induced endothelial dysfunction and CVDs, then summarized the role of melatonin in the treatment of atherosclerosis, hypertension, myocardial ischemia-reperfusion injury, and other CVDs. Finally, the potential clinical use of melatonin in the treatment of these diseases is discussed.
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Affiliation(s)
- Xiaolu Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Yujia Zheng
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Ziyu Wang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Jiali Gan
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Bin Yu
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Bin Lu
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China.
| | - Xijuan Jiang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China.
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27
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Hu T, Zou HX, Le SY, Wang YR, Qiao YM, Yuan Y, Liu JC, Lai SQ, Huang H. Tanshinone IIA confers protection against myocardial ischemia/reperfusion injury by inhibiting ferroptosis and apoptosis via VDAC1. Int J Mol Med 2023; 52:109. [PMID: 37800609 PMCID: PMC10558218 DOI: 10.3892/ijmm.2023.5312] [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: 06/07/2023] [Accepted: 09/06/2023] [Indexed: 10/07/2023] Open
Abstract
Tanshinone IIA (TSN) extracted from danshen (Salvia miltiorrhiza) could protect cardiomyocytes against myocardial ischemia/reperfusion injury (IRI), however the underlying molecular mechanisms of action remain unclear. The aim of the present study was to identify the protective effects of TSN and its mechanisms of action through in vitro studies. An anoxia/reoxygenation (A/R) injury model was established using H9c2 cells to simulate myocardial IRI in vitro. Before A/R, H9c2 cardiomyoblasts were pretreated with 8 µM TSN or 10 µM ferrostatin‑1 (Fer‑1) or erastin. The cell counting kit 8 (CCK‑8) and lactate dehydrogenase (LDH) assay kit were used to detect the cell viability and cytotoxicity. The levels of total iron, glutathione (GSH), glutathione disulfide (GSSG), malondialdehyde (MDA), ferrous iron, caspase‑3 activity, and reactive oxygen species (ROS) were assessed using commercial kit. The levels of mitochondrial membrane potential (MMP), lipid ROS, cell apoptosis, and mitochondrial permeability transition pore (mPTP) opening were detected by flow cytometry. Transmission electron microscopy (TEM) was used to observed the mitochondrial damage. Protein levels were detected by western blot analysis. The interaction between TSN and voltage‑dependent anion channel 1 (VDAC1) was evaluated by molecular docking simulation. The results showed that pretreatment with TSN and Fer‑1 significantly decreased cell viability, glutathione peroxidase 4 (GPX4) protein and GSH expression and GSH/GSSG ratio and inhibited upregulation of LDH activity, prostaglandin endoperoxide synthase 2 and VDAC1 protein expression, ROS levels, mitochondrial injury and GSSG induced by A/R. TSN also effectively inhibited the damaging effects of erastin treatment. Additionally, TSN increased MMP and Bcl‑2/Bax ratio, while decreasing levels of apoptotic cells, activating Caspase‑3 and closing the mPTP. These effects were blocked by VDAC1 overexpression and the results of molecular docking simulation studies revealed a direct interaction between TSN and VDAC1. In conclusion, TSN pretreatment effectively attenuated H9c2 cardiomyocyte damage in an A/R injury model and VDAC1‑mediated ferroptosis and apoptosis served a vital role in the protective effects of TSN.
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Affiliation(s)
- Tie Hu
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Hua-Xi Zou
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Shu-Yu Le
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Ya-Ru Wang
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Ya-Mei Qiao
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yong Yuan
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Ji-Chun Liu
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Song-Qing Lai
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Huang Huang
- Institute of Cardiovascular Surgical Diseases, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Zhao BH, Ruze A, Zhao L, Li QL, Tang J, Xiefukaiti N, Gai MT, Deng AX, Shan XF, Gao XM. The role and mechanisms of microvascular damage in the ischemic myocardium. Cell Mol Life Sci 2023; 80:341. [PMID: 37898977 PMCID: PMC11073328 DOI: 10.1007/s00018-023-04998-z] [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: 05/22/2023] [Revised: 09/08/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023]
Abstract
Following myocardial ischemic injury, the most effective clinical intervention is timely restoration of blood perfusion to ischemic but viable myocardium to reduce irreversible myocardial necrosis, limit infarct size, and prevent cardiac insufficiency. However, reperfusion itself may exacerbate cell death and myocardial injury, a process commonly referred to as ischemia/reperfusion (I/R) injury, which primarily involves cardiomyocytes and cardiac microvascular endothelial cells (CMECs) and is characterized by myocardial stunning, microvascular damage (MVD), reperfusion arrhythmia, and lethal reperfusion injury. MVD caused by I/R has been a neglected problem compared to myocardial injury. Clinically, the incidence of microvascular angina and/or no-reflow due to ineffective coronary perfusion accounts for 5-50% in patients after acute revascularization. MVD limiting drug diffusion into injured myocardium, is strongly associated with the development of heart failure. CMECs account for > 60% of the cardiac cellular components, and their role in myocardial I/R injury cannot be ignored. There are many studies on microvascular obstruction, but few studies on microvascular leakage, which may be mainly due to the lack of corresponding detection methods. In this review, we summarize the clinical manifestations, related mechanisms of MVD during myocardial I/R, laboratory and clinical examination means, as well as the research progress on potential therapies for MVD in recent years. Better understanding the characteristics and risk factors of MVD in patients after hemodynamic reconstruction is of great significance for managing MVD, preventing heart failure and improving patient prognosis.
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Affiliation(s)
- Bang-Hao Zhao
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Amanguli Ruze
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Ling Zhao
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Qiu-Lin Li
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Jing Tang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Nilupaer Xiefukaiti
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Min-Tao Gai
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - An-Xia Deng
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Xue-Feng Shan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China
| | - Xiao-Ming Gao
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asian, Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Clinical Medical Research Institute of Xinjiang Medical University, 137 Liyushan South Road, Urumqi, 830054, China.
- Xinjiang Key Laboratory of Medical Animal Model Research, Urumqi, China.
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Yan Z, He Z, Jiang H, Zhang Y, Xu Y, Zhang Y. TRPV4-mediated mitochondrial dysfunction induces pyroptosis and cartilage degradation in osteoarthritis via the Drp1-HK2 axis. Int Immunopharmacol 2023; 123:110651. [PMID: 37506502 DOI: 10.1016/j.intimp.2023.110651] [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: 05/02/2023] [Revised: 07/11/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
Osteoarthritis (OA) is an age-related chronic degenerative disease with complex pathophysiological mechanisms. Accumulating evidence indicates that nod-like receptor pyrin domain 3 (NLRP3) inflammasome-mediated pyroptosis of chondrocytes plays a crucial role in the OA progression. Transient Receptor Potential Vanilloid 4 (TRPV4), described as a calcium-permeable cation channel, isassociated with proinflammatory factors and pyroptosis. In this study, we studied the potential functions of TRPV4 in chondrocyte pyroptosis and cartilage degradation. We found that lipopolysaccharides(LPS)-induced mitochondrial reactive oxygen species (mtROS) accumulation aggravated chondrocyte pyroptosis and cartilage degeneration. TRPV4 induces dynamin-related protein 1 (Drp1) mitochondrial translocation through the Ca2+-calmodulin-dependent protein kinase II (CaMKII) signaling pathway, which subsequently caused the mitochondrial dysfunction (e.g., mPTP over opening; Δψm depolarization; ATP production decreased; mtROS accumulation), pyroptosis and extracellular matrix (ECM) degradation through hexokinase 2 (HK2) dissociation from mitochondrial membrane. Moreover, TRPV4 inhibition reversed Drp1-involved chondrocyte pyroptosis and cartilage degeneration in the anterior cruciate ligament transection (ACLT) mouse model. Our findings revealed the internal mechanisms underlying TRPV4 regulation in chondrocytes and its intrinsic therapeutic efficacy for OA.
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Affiliation(s)
- Zijian Yan
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Zili He
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Hongyi Jiang
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yu Zhang
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yitie Xu
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yingze Zhang
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Department of Orthopedic Surgery of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang 050051, Hebei, China; NHC Key Laboratory of Intelligent Orthopeadic Equipment, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
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Zhao K, Chen X, Bian Y, Zhou Z, Wei X, Zhang J. Broadening horizons: The role of ferroptosis in myocardial ischemia-reperfusion injury. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:2269-2286. [PMID: 37119287 DOI: 10.1007/s00210-023-02506-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 04/19/2023] [Indexed: 05/01/2023]
Abstract
Ferroptosis is a novel type of regulated cell death (RCD) discovered in recent years, where abnormal intracellular iron accumulation leads to the onset of lipid peroxidation, which further leads to the disruption of intracellular redox homeostasis and triggers cell death. Iron accumulation with lipid peroxidation is considered a hallmark of ferroptosis that distinguishes it from other RCDs. Myocardial ischemia-reperfusion injury (MIRI) is a process of increased myocardial cell injury that occurs during coronary reperfusion after myocardial ischemia and is associated with high post-infarction mortality. Multiple experiments have shown that ferroptosis plays an important role in MIRI pathophysiology. This review systematically summarized the latest research progress on the mechanisms of ferroptosis. Then we report the possible link between the occurrence of MIRI and ferroptosis in cardiomyocytes. Finally, we discuss and analyze the related drugs that target ferroptosis to attenuate MIRI and its action targets, and point out the shortcomings of the current state of relevant research and possible future research directions. It is hoped to provide a new avenue for improving the prognosis of the acute coronary syndrome.
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Affiliation(s)
- Ke Zhao
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, 250000, China
| | - Xiaoshu Chen
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
| | - Yujing Bian
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, 250000, China
| | - Zhou Zhou
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, 250000, China
| | - Xijin Wei
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250000, China.
| | - Juan Zhang
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250000, China.
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Belousoviene E, Pranskuniene Z, Vaitkaitiene E, Pilvinis V, Pranskunas A. Effect of high-dose intravenous ascorbic acid on microcirculation and endothelial glycocalyx during sepsis and septic shock: a double-blind, randomized, placebo-controlled study. BMC Anesthesiol 2023; 23:309. [PMID: 37700249 PMCID: PMC10496271 DOI: 10.1186/s12871-023-02265-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: 05/21/2023] [Accepted: 08/30/2023] [Indexed: 09/14/2023] Open
Abstract
Previous studies indicate supplemental vitamin C improves microcirculation and reduces glycocalyx shedding in septic animals. Our randomized, double-blind, placebo-controlled trial aimed to investigate whether a high dose of intravenous ascorbic acid (AA) might improve microcirculation and affect glycocalyx in septic patients. In our study, 23 septic patients were supplemented with a high dose (50 mg/kg every 6 h) of intravenous AA or placebo for 96 h. Sublingual microcirculation was examined using a handheld Cytocam-incident dark field (IDF) video microscope. A sidestream dark field video microscope (SDF), connected to the GlycoCheck software (GlycoCheck ICU®; Maastricht University Medical Center, Maastricht, the Netherlands), was employed to observe glycocalyx. We found a significantly higher proportion of perfused small vessels (PPV) 6 h after the beginning of the trial in the experimental group compared with placebo. As an indicator of glycocalyx thickness, the perfused boundary region was lower in capillaries of the 5-9 μm diameter in the AA group than placebo after the first dose of AA. Our data suggest that high-dose parenteral AA tends to improve microcirculation and glycocalyx in the early period of septic shock. The study was retrospectively registered in the clinicaltrials.gov database on 26/02/2021 (registration number NCT04773717).
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Affiliation(s)
- Egle Belousoviene
- Department of Intensive Care Medicine, Lithuanian University of Health Sciences, Eiveniu g. 2, Kaunas, LT-50161, Lithuania
| | - Zivile Pranskuniene
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, Sukileliu pr.13, Kaunas, LT-50162, Lithuania
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu pr.13, Kaunas, LT-50162, Lithuania
| | - Egle Vaitkaitiene
- Department of Disaster Medicine and Health Research Institute, Lithuanian University of Health Sciences, Eiveniu g. 4, Kaunas, LT-50161, Lithuania
| | - Vidas Pilvinis
- Department of Intensive Care Medicine, Lithuanian University of Health Sciences, Eiveniu g. 2, Kaunas, LT-50161, Lithuania
| | - Andrius Pranskunas
- Department of Intensive Care Medicine, Lithuanian University of Health Sciences, Eiveniu g. 2, Kaunas, LT-50161, Lithuania.
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Guo Z, Yu X, Zhao S, Zhong X, Huang D, Feng R, Li P, Fang Z, Hu Y, Zhang Z, Abdurahman M, Huang L, Zhao Y, Wang X, Ge J, Li H. SIRT6 deficiency in endothelial cells exacerbates oxidative stress by enhancing HIF1α accumulation and H3K9 acetylation at the Ero1α promoter. Clin Transl Med 2023; 13:e1377. [PMID: 37598403 PMCID: PMC10440057 DOI: 10.1002/ctm2.1377] [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: 01/09/2023] [Revised: 08/06/2023] [Accepted: 08/11/2023] [Indexed: 08/22/2023] Open
Abstract
BACKGROUND SIRT6, an important NAD+ -dependent protein, protects endothelial cells from inflammatory and oxidative stress injuries. However, the role of SIRT6 in cardiac microvascular endothelial cells (CMECs) under ischemia-reperfusion injury (IRI) remains unclear. METHODS The HUVECs model of oxygen-glucose deprivation/reperfusion (OGD/R) was established to simulate the endothelial IRI in vitro. Endoplasmic reticulum oxidase 1 alpha (Ero1α) mRNA and protein levels in SIRT6-overexpressing or SIRT6-knockdown cells were measured by qPCR and Western blotting. The levels of H2 O2 and mitochondrial reactive oxygen species (ROS) were detected to evaluate the status of oxidative stress. The effects of SIRT6 deficiency and Ero1α knockdown on cellular endoplasmic reticulum stress (ERS), inflammation, apoptosis and barrier function were detected by a series of molecular biological experiments and functional experiments in vitro. Chromatin immunoprecipitation, Western blotting, qPCR, and site-specific mutation experiments were used to examine the underlying molecular mechanisms. Furthermore, endothelial cell-specific Sirt6 knockout (ecSirt6-/- ) mice were subjected to cardiac ischemia-reperfusion surgery to investigate the effects of SIRT6 in CMECs in vivo. RESULTS The expression of Ero1α was significantly upregulated in SIRT6-knockdown endothelial cells, and high Ero1α expression correlated with the accumulation of H2 O2 and mitochondrial ROS. In addition, SIRT6 deficiency increased ERS, inflammation, apoptosis and endothelial permeability, and these effects could be significantly attenuated by Ero1α knockdown. The deacetylase catalytic activity of SIRT6 was important in regulating Ero1α expression and these biological processes. Mechanistically, SIRT6 inhibited the enrichment of HIF1α and p300 at the Ero1α promoter through deacetylating H3K9, thereby antagonizing HIF1α/p300-mediated Ero1α expression. Compared with SIRT6-wild-type (SIRT6-WT) cells, cells expressing the SIRT6-H133Y-mutant and SIRT6-R65A-mutant exhibited increased Ero1α expression. Furthermore, ecSirt6-/- mice subjected to ischemia-reperfusion surgery exhibited increased Ero1α expression and ERS in CMECs and worsened injuries to microvascular barrier function and cardiac function. CONCLUSIONS Our results revealed an epigenetic mechanism associated with SIRT6 and Ero1α expression and highlighted the therapeutic potential of targeting the SIRT6-HIF1α/p300-Ero1α axis.
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Affiliation(s)
- Zhenyang Guo
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Xueting Yu
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Shuang Zhao
- Department of Medical ExaminationShanghai Xuhui District Central HospitalShanghaiChina
| | - Xin Zhong
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Dong Huang
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Runyang Feng
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Peng Li
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Zheyan Fang
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Yiqing Hu
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Zhentao Zhang
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Mukaddas Abdurahman
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
| | - Lei Huang
- Department of MolecularCell and Cancer BiologyProgram in Molecular MedicineUniversity of Massachusetts Medical SchoolMAUSA
| | - Yun Zhao
- School of Life Science and TechnologyShanghaiTech UniversityShanghaiChina
- State Key Laboratory of Cell BiologyCenter for Excellence in Molecular Cell ScienceChinese Academy of SciencesShanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of SciencesShanghaiChina
- Key Laboratory of Systems Health Science of Zhejiang ProvinceSchool of Life ScienceHangzhou Institute for Advanced Study, University of Chinese Academy of SciencesHangzhouChina
| | - Xiangdong Wang
- Department of Pulmonary and Critical Care MedicineZhongshan HospitalShanghai Medical CollegeFudan UniversityShanghaiChina
| | - Junbo Ge
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
- Department of CardiologyZhongshan Hospital, Fudan UniversityShanghaiChina
- National Clinical Research Center for Interventional MedicineShanghaiChina
- Shanghai Clinical Research Center for Interventional MedicineShanghaiChina
- Key Laboratory of Viral Heart DiseasesNational Health CommissionShanghaiChina
- Key Laboratory of Viral Heart DiseasesChinese Academy of Medical SciencesShanghaiChina
| | - Hua Li
- Department of Cardiology, Zhongshan HospitalShanghai Institute of Cardiovascular Diseases, Fudan UniversityShanghaiChina
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Amato I, Meurant S, Renard P. The Key Role of Mitochondria in Somatic Stem Cell Differentiation: From Mitochondrial Asymmetric Apportioning to Cell Fate. Int J Mol Sci 2023; 24:12181. [PMID: 37569553 PMCID: PMC10418455 DOI: 10.3390/ijms241512181] [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: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
The study of the mechanisms underlying stem cell differentiation is under intensive research and includes the contribution of a metabolic switch from glycolytic to oxidative metabolism. While mitochondrial biogenesis has been previously demonstrated in number of differentiation models, it is only recently that the role of mitochondrial dynamics has started to be explored. The discovery of asymmetric distribution of mitochondria in stem cell progeny has strengthened the interest in the field. This review attempts to summarize the regulation of mitochondrial asymmetric apportioning by the mitochondrial fusion, fission, and mitophagy processes as well as emphasize how asymmetric mitochondrial apportioning in stem cells affects their metabolism, and thus epigenetics, and determines cell fate.
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Affiliation(s)
- Ilario Amato
- Ressearch Unit in Cell Biology (URBC), Namur Research Institute for Life Sciences (Narilis), University of Namur (UNamur), 5000 Namur, Belgium; (I.A.); (S.M.)
| | - Sébastien Meurant
- Ressearch Unit in Cell Biology (URBC), Namur Research Institute for Life Sciences (Narilis), University of Namur (UNamur), 5000 Namur, Belgium; (I.A.); (S.M.)
| | - Patricia Renard
- Ressearch Unit in Cell Biology (URBC), Namur Research Institute for Life Sciences (Narilis), University of Namur (UNamur), 5000 Namur, Belgium; (I.A.); (S.M.)
- Mass Spectrometry Platform (MaSUN), Namur Research Institute for Life Sciences (Narilis), University of Namur (UNamur), 5000 Namur, Belgium
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Su HX, Li PB, Shi KN, Gao J, Zhang HJ, Li HH. The immunoproteasome subunit β2i ameliorates myocardial ischemia/reperfusion injury by regulating Parkin-Mfn1/2-mediated mitochondrial fusion. Cell Mol Life Sci 2023; 80:231. [PMID: 37501008 PMCID: PMC11071955 DOI: 10.1007/s00018-023-04867-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/02/2023] [Accepted: 07/09/2023] [Indexed: 07/29/2023]
Abstract
Mitochondrial dynamics are critical for maintaining mitochondrial morphology and function during cardiac ischemia and reperfusion (I/R). The immunoproteasome complex is an inducible isoform of the proteasome that plays a key role in modulating inflammation and some cardiovascular diseases, but the importance of immunoproteasome catalytic subunit β2i (also known as LMP10 or MECL1) in regulating mitochondrial dynamics and cardiac I/R injury is largely unknown. Here, using β2i-knockout (KO) mice and rAAV9-β2i-injected mice, we discovered that β2i expression and its trypsin-like activity were significantly attenuated in the mouse I/R myocardium and in patients with myocardial infarction (MI). Moreover, β2i-KO mice exhibited greatly enhanced I/R-mediated cardiac dysfunction, infarct size, myocyte apoptosis and oxidative stress accompanied by excessive mitochondrial fission due to Mfn1/2 and Drp1 imbalance. Conversely, cardiac overexpression of β2i in mice injected with recombinant adeno-associated virus 9 (rAAV9)-β2i ameliorated cardiac I/R injury. Mechanistically, I/R injury reduced β2i expression and activity, which increased the expression of the E3 ligase Parkin protein and promoted the degradation of mitofusin 1/2 (Mfn1/2), leading to excessive mitochondrial fission. In conclusion, our data suggest for the first time that β2i exerts a protective role against cardiac I/R injury and that increasing β2i expression may be a new therapeutic option for cardiac ischemic disease in clinical practice. Graphical abstract showing how the immunoproteasome subunit β2i ameliorates myocardial I/R injury by regulating Parkin-Mfn1/2-mediated mitochondrial fusion.
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Affiliation(s)
- Hui-Xiang Su
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Pang-Bo Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Kai-Na Shi
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Jing Gao
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China
| | - Hong-Jia Zhang
- Department of Cardiac Surgery, Beijing An-Zhen Hospital, Capital Medical University, No. 2 An-Zhen Road, Chaoyang District, Beijing, 100029, China.
| | - Hui-Hua Li
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Worker's Stadium South Road, Beijing, 100020, China.
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Wang X, Liu T, Lv X, Sun N, Li F, Luo L, Zhuge X, Huang J, Wang L. A Potential Nontraditional Approach To Combat tmexCD1-toprJ1-Mediated Tigecycline Resistance: Melatonin as a Synergistic Adjuvant of Tigecycline. Antimicrob Agents Chemother 2023; 67:e0004723. [PMID: 37289048 PMCID: PMC10353380 DOI: 10.1128/aac.00047-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/04/2023] [Indexed: 06/09/2023] Open
Abstract
The emergence of TMexCD1-TOprJ1, a novel transferable resistance-nodulation-division (RND)-type efflux pump conferring resistance to tigecycline, is now a serious public health issue in the world. Here, we found that melatonin synergistically enhanced the antibacterial efficacy of tigecycline against tmexCD1-toprJ1-positive Klebsiella pneumoniae by disrupting the proton driving force and efflux function to promote the accumulation of tigecycline into cells, damaging cell membrane integrity and causing the leakage of cell contents. The synergistic effect was further validated by a murine thigh infection model. The results revealed that the melatonin/tigecycline combination is a potential therapy to combat resistant bacteria carrying the tmexCD1-toprJ1 gene.
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Affiliation(s)
- Xiaoming Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Risk Assessment Center of Veterinary Drug Residue and Antimicrobial Resistance, Nanjing Agricultural University, Nanjing, China
| | - Ting Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xi Lv
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Naiyan Sun
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Fan Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Lei Luo
- College of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - Xiangkai Zhuge
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, China
| | - Jinhu Huang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Risk Assessment Center of Veterinary Drug Residue and Antimicrobial Resistance, Nanjing Agricultural University, Nanjing, China
| | - Liping Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
- Risk Assessment Center of Veterinary Drug Residue and Antimicrobial Resistance, Nanjing Agricultural University, Nanjing, China
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Liao B, Han Z. Roflumilast reduces myocardial ischemia reperfusion injury in vivo and in vitro by activating the AMPK signaling pathway. Exp Ther Med 2023; 25:302. [PMID: 37229319 PMCID: PMC10203911 DOI: 10.3892/etm.2023.12001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 03/24/2023] [Indexed: 05/27/2023] Open
Abstract
Myocardial tissue cell damage induced by myocardial ischemia/reperfusion (MI/R) notably elevates the mortality rate, increases the complications of patients with myocardial infarction and decreases reperfusion benefit in patients suffering from acute myocardial infarction. Roflumilast protect against cardiotoxicity. Therefore, the present study aimed to investigate the effect of roflumilast on MI/R injury and the underlying mechanisms. To simulate MI/R in vivo and in vitro, the rat model of MI/R was established and H9C2 cells were subjected to hypoxia/reoxygenation (H/R) induction, respectively. The myocardial infarction areas were observed by 2,3,5-triphenyltetrazolium chloride staining. The myocardial enzyme levels in serum and levels of inflammatory cytokines and oxidative stress markers in cardiac tissue were assessed by corresponding assay kits. The cardiac damage was observed by hematoxylin and eosin staining. The mitochondrial membrane potential in cardiac tissue and H9C2 cells was detected using the JC-1 staining kit. The viability and apoptosis of H9C2 cells were detected by Cell Counting Kit-8 and TUNEL assay, respectively. The levels of inflammatory cytokines, oxidative stress markers and ATP in H/R-induced H9C2 cells were analyzed by corresponding assay kits. Western blotting was used for the estimation of AMP-activated protein kinase (AMPK) signaling pathway-, apoptosis- and mitochondrial regulation-associated protein levels. The mPTP opening was detected using a calcein-loading/cobalt chloride-quenching system. The results indicated that roflumilast decreased MI/R-induced myocardial infarction by alleviating myocardial injury and mitochondrial damage through the activation of the AMPK signaling pathway. In addition, roflumilast mitigated viability damage, alleviated oxidative stress, attenuated the inflammatory response and decreased mitochondrial damage in H/R-induced H9C2 cells by activating the AMPK signaling pathway. However, compound C, an inhibitor of the AMPK signaling pathway, reversed the effect of roflumilast on H/R-induced H9C2 cells. In conclusion, roflumilast alleviated myocardial infarction in MI/R rats and attenuated H/R-induced oxidative stress, inflammatory response and mitochondrial damage in H9C2 cells by activating the AMPK signaling pathway.
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Affiliation(s)
- Bo Liao
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhongyuan Han
- Department of Cardiovascular Medicine, The Second People's Hospital of Nantong, Nantong, Jiangsu 226002, P.R. China
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Sarkar S, Das A, Mitra A, Ghosh S, Chattopadhyay S, Bandyopadhyay D. An integrated strategy to explore the potential role of melatonin against copper-induced adrenaline toxicity in rat cardiomyocytes: Insights into oxidative stress, inflammation, and apoptosis. Int Immunopharmacol 2023; 120:110301. [PMID: 37224648 DOI: 10.1016/j.intimp.2023.110301] [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: 01/18/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/26/2023]
Abstract
AIMS Circumstantial anxiety as well as chronic stress may stimulate the release of stress hormones including catecholamines. Adrenaline toxicity has been implicated in many cardiovascular conditions. Considering previous literature that suggests the oxidative potential of the adrenaline-copper entity, we have investigated its potential nocuous role in isolated adult rat cardiomyocytes, the underlying molecular mechanism, and its possible protection by melatonin. MAIN METHODS Given the mechanistic congruity of adrenaline-copper (AC) with the well-established H2O2-copper-ascorbate (HCA) system of free radical generation, we have used the latter as a representative model to study the cytotoxic nature of AC. We further investigated the cardioprotective efficacy of melatonin in both the stress models through scanning electron microscopy, immunofluorescence, flow cytometry, and western blot analysis. KEY FINDINGS Results show that melatonin significantly protects AC-treated cardiomyocytes from ROS-mediated membrane damage, disruption of mitochondrial membrane potential, antioxidant imbalance, and distortion of cellular morphology. Melatonin protects cardiomyocytes from inflammation by downregulating pro-inflammatory mediators viz., COX-2, NF-κB, TNF-α, and upregulating anti-inflammatory IL-10. Melatonin significantly ameliorated cardiomyocyte apoptosis in AC and HCA-treated cells as evidenced by decreased BAX/BCL-2 ratio and subsequent suppression of caspase-9 and caspase-3 levels. The isothermal calorimetric study revealed that melatonin inhibits the binding of adrenaline bitartrate with copper in solution, which fairly explains the rescue potential of melatonin against AC-mediated toxicity in cardiomyocytes. SIGNIFICANCE Findings suggest that the multipronged strategy of melatonin that includes its antioxidant, anti-inflammatory, anti-apoptotic, and overall cardioprotective ability may substantiate its potential therapeutic efficacy against adrenaline-copper-induced damage and death of adult rat cardiomyocytes.
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Affiliation(s)
- Swaimanti Sarkar
- Oxidative Stress and Free Radical Biology Laboratory, Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Ankur Das
- Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Ankan Mitra
- Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Songita Ghosh
- Oxidative Stress and Free Radical Biology Laboratory, Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Sreya Chattopadhyay
- Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India
| | - Debasish Bandyopadhyay
- Oxidative Stress and Free Radical Biology Laboratory, Department of Physiology, University of Calcutta, University College of Science and Technology and Agriculture, 92 APC Road, Kolkata 700 009, India.
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Fu T, Ma Y, Li Y, Wang Y, Wang Q, Tong Y. Mitophagy as a mitochondrial quality control mechanism in myocardial ischemic stress: from bench to bedside. Cell Stress Chaperones 2023; 28:239-251. [PMID: 37093549 PMCID: PMC10167083 DOI: 10.1007/s12192-023-01346-9] [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: 01/09/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/25/2023] Open
Abstract
Myocardial ischemia reduces the supply of oxygen and nutrients to cardiomyocytes, leading to an energetic crisis or cell death. Mitochondrial dysfunction is a decisive contributor to the reception, transmission, and modification of cardiac ischemic signals. Cells with damaged mitochondria exhibit impaired mitochondrial metabolism and increased vulnerability to death stimuli due to disrupted mitochondrial respiration, reactive oxygen species overproduction, mitochondrial calcium overload, and mitochondrial genomic damage. Various intracellular and extracellular stress signaling pathways converge on mitochondria, so dysfunctional mitochondria tend to convert from energetic hubs to apoptotic centers. To interrupt the stress signal transduction resulting from lethal mitochondrial damage, cells can activate mitophagy (mitochondria-specific autophagy), which selectively eliminates dysfunctional mitochondria to preserve mitochondrial quality control. Different pharmacological and non-pharmacological strategies have been designed to augment the protective properties of mitophagy and have been validated in basic animal experiments and pre-clinical human trials. In this review, we describe the process of mitophagy in cardiomyocytes under ischemic stress, along with its regulatory mechanisms and downstream effects. Then, we discuss promising therapeutic approaches to preserve mitochondrial homeostasis and protect the myocardium against ischemic damage by inducing mitophagy.
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Affiliation(s)
- Tong Fu
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
- Brandeis University, Waltham, MA, 02453, USA
| | - Yanchun Ma
- Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Yan Li
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Yingwei Wang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Qi Wang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Ying Tong
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, China.
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Mu N, Zhang T, Zhu Y, Lu B, Zheng Q, Duan J. The mechanism by which miR-494-3p regulates PGC1-α-mediated inhibition of mitophagy in cardiomyocytes and alleviation of myocardial ischemia-reperfusion injury. BMC Cardiovasc Disord 2023; 23:204. [PMID: 37085803 PMCID: PMC10122381 DOI: 10.1186/s12872-023-03226-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 04/04/2023] [Indexed: 04/23/2023] Open
Abstract
OBJECTIVE The purpose of this study was to explore whether miR-494-3p inhibits the occurrence of mitochondrial autophagy in cardiomyocytes by inhibiting the expression of PGC1-α and to supplement the theoretical basis for the role of autophagy in cardiac injury induced by hypoxia/reperfusion (H/R). METHODS The expression of miR-494-3p was detected by RT‒qPCR, and the expression of PGC1-α, autophagy-related proteins (LC3, Beclin 1), apoptosis-related proteins (Bax and Bcl-2), PINK1/Parkin signaling pathway-related proteins (PINK1, Parkin) and mitochondrial change-related proteins (Mfn1, Mfn2, OPA1) was detected by Western blotting. The changes in mitochondrial membrane potential were detected by JC-1 staining (ΔΨm). The formation of autophagosomes was observed by transmission electron microscopy. Cell proliferation activity was detected by CCK-8, and cell apoptosis was detected by flow cytometry. A dual-luciferase gene reporter assay identified a targeted binding site between miR-494-3p and PGC1-α. RESULTS The results showed that miR-494-3p and PGC1-α were differentially expressed in H/R cardiomyocytes; that is, the expression of miR-494-3p was downregulated, and the expression of PGC1-α was upregulated. In addition, mitochondrial autophagy occurred in H/R cardiomyocytes. That is, LC3-II/LC3-I, Beclin 1, PINK1, and Parkin expression was upregulated, Mfn1, Mfn2, and OPA1 expression was downregulated, and the mitochondrial membrane potential was decreased. The transfection of miR-494-3p mimic can significantly improve the cell proliferation activity of cardiomyocytes and inhibit the occurrence of cardiomyocyte apoptosis and autophagy, while the transfection of miR-494-3p inhibitor has the opposite result. After transfection of the miR-494-3p mimic, treatment with autophagy inhibitors and activators changed the effects of miR-494-3p on cardiomyocyte proliferation and apoptosis. At the same time, the overexpression of PGC1-α reversed the promoting effect of miR-494-3p on cardiomyocyte proliferation and the inhibitory effect on apoptosis and autophagy. CONCLUSION MiR-494-3p can target and negatively regulate the expression of PGC1-α to inhibit mitophagy in cardiomyocytes.
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Affiliation(s)
- Ninghui Mu
- General Practice Department, The First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, China
| | - Tong Zhang
- General Practice Department, The First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, China
| | - Ying Zhu
- General Practice Department, The First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, China
| | - Bingtuan Lu
- General Practice Department, The First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, China
| | - Qi Zheng
- General Practice Department, The First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, China
| | - Jinlan Duan
- Geriatric Medicine Department, The First People's Hospital of Yunnan Province, No. 157, Jinbi Road, Xishan District, Kunming, Yunnan, 650032, China.
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Wan H, Yan YD, Hu XM, Shang L, Chen YH, Huang YX, Zhang Q, Yan WT, Xiong K. Inhibition of mitochondrial VDAC1 oligomerization alleviates apoptosis and necroptosis of retinal neurons following OGD/R injury. Ann Anat 2023; 247:152049. [PMID: 36690044 DOI: 10.1016/j.aanat.2023.152049] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/21/2023]
Abstract
Ischemia-reperfusion (I/R) injury is a common pathological mechanism in many retinal diseases, which can lead to cell death via mitochondrial dysfunction. Voltage-dependent anion channel 1 (VDAC1), which is mainly located in the outer mitochondrial membrane, is the gatekeeper of mitochondria. The permeability of mitochondrial membrane can be regulated by controlling the oligomerization of VDAC1. However, the functional mechanism of VDAC1 in retinal I/R injury was unclear. Our results demonstrate that oxygen-glucose deprivation and re-oxygenation (OGD/R) injury leads to apoptosis, necroptosis, and mitochondrial dysfunction of R28 cells. The OGD/R injury increases the levels of VDAC1 oligomerization. Inhibition of VDAC1 oligomerization by VBIT-12 rescued mitochondrial dysfunction by OGD/R and also reduced apoptosis/necroptosis of R28 cells. In vivo, the use of VBIT-12 significantly reduced aHIOP-induced neuronal death (apoptosis/necroptosis) in the rat retina. Our findings indicate that VDAC1 oligomers may open and enlarge mitochondrial membrane pores during OGD/R injury, leading to the release of death-related factors in mitochondria, resulting in apoptosis and necroptosis. This study provides a potential therapeutic strategy against ocular diseases caused by I/R injury.
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Affiliation(s)
- Hao Wan
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Yan-di Yan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xi-Min Hu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Lei Shang
- Jiangxi Research Institute of Ophthalmology and Visual Sciences, Affiliated Eye Hospital of Nanchang University, Nanchang 330006, China
| | - Yu-Hua Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Yan-Xia Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Qi Zhang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Wei-Tao Yan
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China.
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha 410013, China; Hunan Key Laboratory of Ophthalmology, Changsha 410008, China; Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou 571199, China.
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Liu Y, Wang Y, Bi Y, Zhao Z, Wang S, Lin S, Yang Z, Wang X, Mao J. Emerging role of mitophagy in heart failure: from molecular mechanism to targeted therapy. Cell Cycle 2023; 22:906-918. [PMID: 36658777 PMCID: PMC10054314 DOI: 10.1080/15384101.2023.2167949] [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: 12/19/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023] Open
Abstract
Heart failure is defined as a drop in heart's pump function, accounting for reduced blood output and venous stasis, and constitutes the end stage of various cardiovascular diseases. Although mild mitochondrial dysfunction may hinder cardiomyocyte metabolism and impair myocardial function, severe mitochondrial injury is accompanied by cardiomyocyte apoptosis, leading to irreversible damage of the heart. Selective autophagy of mitochondria, or mitophagy, serves to rapidly remove dysfunctional mitochondria and restore the health of the mitochondrial population within cells by allowing reutilization of degradative substrates such as amino acids, fatty acids, and nucleotides. Although mitophagy represents a protective program that prevents the accumulation of poorly structured or damaged mitochondria, excessive mitophagy leads to mitochondrial population decline, impaired oxidative phosphorylation, and decreased ATP production. In this review, we first discuss the molecular underpinnings of mitophagy and the roles of different mitophagy adaptors. Then, the multiple and complex influence of mitophagy on heart failure is summarized. Finally, novel pharmacological strategies targeting mitophagy to relieve heart failure are briefly summarized.
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Affiliation(s)
- Yu Liu
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Yizhou Wang
- Rehabilitation Department, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
| | - Yingfei Bi
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Zhiqiang Zhao
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Shuai Wang
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Shanshan Lin
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Zhihua Yang
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Xianliang Wang
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Jingyuan Mao
- Department of Cardiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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Zhang F, Yang S, Jiang L, Liu J, He Y, Sheng X, Chen H, Kang J, Jia S, Fan W, Huang F, He H. Melatonin-mediated malic enzyme 2 orchestrates mitochondrial fusion and respiratory functions to promote odontoblastic differentiation during tooth development. J Pineal Res 2023; 74:e12865. [PMID: 36864655 DOI: 10.1111/jpi.12865] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 12/15/2022] [Accepted: 01/12/2023] [Indexed: 03/04/2023]
Abstract
Tooth development is a complex process that is tightly controlled by circadian rhythm. Melatonin (MT) is a major hormonal regulator of the circadian rhythm, and influences dentin formation and odontoblastic differentiation during tooth development; however, the underlying mechanism remains elusive. This study investigated how MT regulates odontoblastic differentiation, with a special focus on its regulation of mitochondrial dynamics. In rat dental papilla cells (DPCs), we found that MT promotes odontoblastic differentiation concurrently with enhanced mitochondrial fusion, while disruption of mitochondrial fusion by depleting optic atrophy 1 (OPA1) impairs MT-mediated differentiation and mitochondrial respiratory functions. Through RNA sequencing, we discovered that MT significantly upregulated malic enzyme 2 (ME2), a mitochondrial NAD(P)+ -dependent enzyme, and identified ME2 as a critical MT downstream effector that orchestrates odontoblastic differentiation, mitochondrial fusion, and respiration functions. By detecting the spatiotemporal expression of ME2 in developing tooth germs, and using tooth germ reconstituted organoids, we also provided in vivo and ex vivo evidence that ME2 promotes dentin formation, indicating a possible involvement of ME2 in MT-modulated tooth development. Collectively, our findings offer novel understandings regarding the molecular mechanism by which MT affects cell differentiation and organogenesis, meanwhile, the critical role of ME2 in MT-regulated mitochondrial functions is also highlighted.
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Affiliation(s)
- Fuping Zhang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Shengyan Yang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Liulin Jiang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Jiawei Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yifan He
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xinyue Sheng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Haoling Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Jun Kang
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Shilin Jia
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Wenguo Fan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Fang Huang
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Hongwen He
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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Li ZY, Lu GQ, Lu J, Wang PX, Zhang XL, Zou Y, Liu PQ. SZC-6, a small-molecule activator of SIRT3, attenuates cardiac hypertrophy in mice. Acta Pharmacol Sin 2023; 44:546-560. [PMID: 36042291 PMCID: PMC9958013 DOI: 10.1038/s41401-022-00966-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 07/24/2022] [Indexed: 11/09/2022] Open
Abstract
Sirtuin3 (SIRT3), a class III histone deacetylase, is implicated in various cardiovascular diseases as a novel therapeutic target. SIRT3 has been proven to be cardioprotective in a model of Ang II-induced cardiac hypertrophy. However, a few small-molecule compounds targeting deacetylases could activate SIRT3. In this study, we generated a novel SIRT3 activator, 3-(2-bromo-4-hydroxyphenyl)-7-hydroxy-2H-chromen-2-one (SZC-6), through structural optimization of the first SIRT3 agonist C12. We demonstrated that SZC-6 directly bound to SIRT3 with Kd value of 15 μM, and increased SIRT3 deacetylation activity with EC50 value of 23.2 ± 3.3 µM. In neonatal rat cardiomyocytes (NRCMs), pretreatment with SZC-6 (10, 20, 40 µM) dose-dependently attenuated isoproterenol (ISO)-induced hypertrophic responses. Administration of SZC-6 (20, 40 and 60 mg·kg-1·d-1, s.c.) for 2 weeks starting from one week prior ISO treatment dose-dependently reversed ISO-induced impairment of diastolic and systolic cardiac function in wild-type mice, but not in SIRT3 knockdown mice. We showed that SZC-6 (10, 20, 40 µM) dose-dependently inhibited cardiac fibroblast proliferation and differentiation into myofibroblasts, which was abolished in SIRT3-knockdown mice. We further revealed that activation of SIRT3 by SZC-6 increased ATP production and rate of mitochondrial oxygen consumption, and reduced ROS, improving mitochondrial function in ISO-treated NRCMs. We also found that SZC-6 dose-dependently enhanced LKB1 phosphorylation, thereby promoting AMPK activation to inhibit Drp1-dependent mitochondrial fragmentation. Taken together, these results demonstrate that SZC-6 is a novel SIRT3 agonist with potential value in the treatment of cardiac hypertrophy partly through activation of the LKB1-AMPK pathway.
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Affiliation(s)
- Ze-Yu Li
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Guo-Qing Lu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jing Lu
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Pan-Xia Wang
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xiao-Lei Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yong Zou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Pei-Qing Liu
- National-Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Province Engineering Laboratoty for Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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Tan X, Chen YF, Zou SY, Wang WJ, Zhang NN, Sun ZY, Xian W, Li XR, Tang B, Wang HJ, Gao Q, Kang PF. ALDH2 attenuates ischemia and reperfusion injury through regulation of mitochondrial fusion and fission by PI3K/AKT/mTOR pathway in diabetic cardiomyopathy. Free Radic Biol Med 2023; 195:219-230. [PMID: 36587924 DOI: 10.1016/j.freeradbiomed.2022.12.097] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/16/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022]
Abstract
The function of mitochondrial fusion and fission is one of the important factors causing ischemia-reperfusion (I/R) injury in diabetic myocardium. Aldehyde dehydrogenase 2 (ALDH2) is abundantly expressed in heart, which involved in the regulation of cellular energy metabolism and stress response. However, the mechanism of ALDH2 regulating mitochondrial fusion and fission in diabetic myocardial I/R injury has not been elucidated. In the present study, we found that the expression of ALDH2 was downregulated in rat diabetic myocardial I/R model. Functionally, the activation of ALDH2 resulted in the improvement of cardiac hemodynamic parameters and myocardial injury, which were abolished by the treatment of Daidzin, a specific inhibitor of ALDH2. In H9C2 cardiomyocyte hypoxia-reoxygenation model, ALDH2 regulated the dynamic balance of mitochondrial fusion and fission and maintained mitochondrial morphology stability. Meanwhile, ALDH2 reduced mitochondrial ROS levels, and apoptotic protein expression in cardiomyocytes, which was associated with the upregulation of phosphorylation (p-PI3KTyr458, p-AKTSer473, p-mTOR). Moreover, ALDH2 suppressed the mitoPTP opening through reducing 4-HNE. Therefore, our results demonstrated that ALDH2 alleviated the ischemia and reperfusion injury in diabetic cardiomyopathy through inhibition of mitoPTP opening and activation of PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Xin Tan
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Yong-Feng Chen
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Shi-Ying Zou
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Wei-Jie Wang
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Ning-Ning Zhang
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Zheng-Yu Sun
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Wei Xian
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Xiao-Rong Li
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Bi Tang
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Hong-Ju Wang
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Qin Gao
- Department of Physiology, Bengbu Medical College, Bengbu, China; Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu, China.
| | - Pin-Fang Kang
- Department of Cardiovascular Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China; Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu, China.
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Mou YL, Zhao R, Lyu SY, Zhang ZY, Zhu MF, Liu Q. Crocetin protects cardiomyocytes against hypoxia/reoxygenation injury by attenuating Drp1-mediated mitochondrial fission via PGC-1α. J Geriatr Cardiol 2023; 20:68-82. [PMID: 36875162 PMCID: PMC9975486 DOI: 10.26599/1671-5411.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND Saffron (Crocus sativus L.) has been traditionally used as food, spice, and medicine. Crocetin (CRT), as main bioactive component of saffron, has accumulated pieces of beneficial evidence on myocardial ischemia/reperfusion (I/R) injury. However, the mechanisms are poorly explored. This study aims to investigate the effects of CRT on H9c2 cells under hypoxia/reoxygenation (H/R) and elucidated the possible underlying mechanism. METHODS H/R attack was performed on H9c2 cells. Cell counting kit-8 was used to detect the cell viability. Cell samples and culture supernatants were evaluated via commercial kits to measure the superoxide dismutase (SOD) activity, malondialdehyde (MDA) content, and cellular adenosine triphosphate (ATP) content. Various fluorescent probes were used to detect cell apoptosis, intracellular and mitochondrial reactive oxygen species (ROS) content, mitochondrial morphology, mitochondrial membrane potential (MMP), and mitochondrial permeability transition pore (mPTP) opening. Proteins were evaluated via Western Blot. RESULTS H/R exposure severely reduced cell viability and increased LDH leakage. Peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α) suppression and dynamin-related protein 1 (Drp1) activation were coincided with excessive mitochondrial fission, mitochondrial permeability transition pore (mPTP) opening and mitochondrial membrane potential (MMP) collapse in H9c2 cells treated with H/R. Mitochondria fragmentation under H/R injury induced ROS over-production, oxidative stress, and cell apoptosis. Notably, CRT treatment significantly prevented mitochondrial fission, mPTP opening, MMP loss, and cell apoptosis. Moreover, CRT sufficiently activated PGC-1α and inactivated Drp1. Interestingly, mitochondrial fission inhibition with mdivi-1 similarly suppressed mitochondrial dysfunction, oxidative stress and cell apoptosis. However, silencing PGC-1α with small interfering RNA (siRNA) abolished the beneficial effects of CRT on H9c2 cells under H/R injury, accompanied with increased Drp1 and p-Drp1ser616 levels. Furthermore, over-expression of PGC-1α with adenovirus transfection replicated the beneficial effects of CRT on H9c2 cells. CONCLUSIONS Our study identified PGC-1α as a master regulator in H/R-injured H9c2 cells via Drp1-mediated mitochondrial fission. We also presented the evidence that PGC-1α might be a novel target against cardiomyocyte H/R injury. Our data revealed the role of CRT in regulating PGC-1α/Drp1/mitochondrial fission process in H9c2 cells under the burden of H/R attack, and we suggested that modulation of PGC-1α level may provide a therapeutic target for treating cardiac I/R injury.
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Affiliation(s)
- You-Ling Mou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Rui Zhao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shi-Ying Lyu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zi-Yi Zhang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mei-Fei Zhu
- Department of Critical Care Medicine, the First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qian Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
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Role of Mitophagy in Myocardial Ischemia/Reperfusion Injury and Chinese Medicine Treatment. Chin J Integr Med 2023; 29:81-88. [PMID: 34731432 DOI: 10.1007/s11655-021-3301-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2020] [Indexed: 12/31/2022]
Abstract
Mitophagy is one of the important targets for the prevention and treatment of myocardial ischemia/reperfusion injury (MIRI). Moderate mitophagy can remove damaged mitochondria, inhibit excessive reactive oxygen species accumulation, and protect mitochondria from damage. However, excessive enhancement of mitophagy greatly reduces adenosine triphosphate production and energy supply for cell survival, and aggravates cell death. How dysfunctional mitochondria are selectively recognized and engulfed is related to the interaction of adaptors on the mitochondrial membrane, which mainly include phosphatase and tensin homolog deleted on chromosome ten (PTEN)-induced kinase 1/Parkin, hypoxia-inducible factor-1 α/Bcl-2 and adenovirus e1b19k Da interacting protein 3, FUN-14 domain containing protein 1 receptor-mediated mitophagy pathway and so on. In this review, the authors briefly summarize the main pathways currently studied on mitophagy and the relationship between mitophagy and MIRI, and incorporate and analyze research data on prevention and treatment of MIRI with Chinese medicine, thereby provide relevant theoretical basis and treatment ideas for clinical prevention of MIRI.
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Guo Y, Zhang P, Zhao H, Xu C, Lin S, Mei X, Tian H. Melatonin promotes microglia toward anti-inflammatory phenotype after spinal cord injury. Int Immunopharmacol 2023; 114:109599. [PMID: 36538849 DOI: 10.1016/j.intimp.2022.109599] [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: 09/13/2022] [Revised: 11/25/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Microglia, immune cells in the central nervous system (CNS), mediate inflammatory responses and provide support to the microenvironment. Neurotoxic microglia predominantly locate in the injured spinal cord that delay spinal cord injury (SCI) repair. We previously found that melatonin could suppress SCI-induced neuronal inflammatory activation. However, the effect of melatonin in microglia responses remains unclear. In this study, isolated primary microglia and neurons were stimulated with lipopolysaccharide (LPS) and interferon-γ (IFN-γ) or melatonin-containing medium. We found that melatonin supported the beneficial polarization from pro-inflammatory to anti-inflammation, downrehulated ROS activity, and recovered mitochondrial metabolism in vitro and in vivo. Furthermore, melatonin downregulated pro-inflammatory-related mRNA levels. These results suggested that melatonin may be therapeutic potential for neuroinflammation-related neurological disorders, such as SCI.
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Affiliation(s)
- Yue Guo
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China; Key Laboratory of medical tissue engineering, Jinzhou Medical University, Jinzhou, P. R. China
| | - Peng Zhang
- Key Laboratory of medical tissue engineering, Jinzhou Medical University, Jinzhou, P. R. China
| | - Haosen Zhao
- Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Chang Xu
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Sen Lin
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China; Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
| | - Xifan Mei
- Department of Orthopedic, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China; Department of Orthopedic, Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
| | - He Tian
- School of Basic Medicine, Jinzhou Medical University, Jinzhou, China.
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48
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Qu K, Yan F, Qin X, Zhang K, He W, Dong M, Wu G. Mitochondrial dysfunction in vascular endothelial cells and its role in atherosclerosis. Front Physiol 2022; 13:1084604. [PMID: 36605901 PMCID: PMC9807884 DOI: 10.3389/fphys.2022.1084604] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
The mitochondria are essential organelles that generate large amounts of ATP via the electron transport chain (ECT). Mitochondrial dysfunction causes reactive oxygen species accumulation, energy stress, and cell death. Endothelial mitochondrial dysfunction is an important factor causing abnormal function of the endothelium, which plays a central role during atherosclerosis development. Atherosclerosis-related risk factors, including high glucose levels, hypertension, ischemia, hypoxia, and diabetes, promote mitochondrial dysfunction in endothelial cells. This review summarizes the physiological and pathophysiological roles of endothelial mitochondria in endothelial function and atherosclerosis.
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Affiliation(s)
- Kai Qu
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,College of Bioengineering Chongqing University, Chongqing, China
| | - Fang Yan
- Department of Geriatrics, Geriatric Diseases Institute of Chengdu, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China,Center for Medicine Research and Translation, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China
| | - Xian Qin
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,College of Bioengineering Chongqing University, Chongqing, China
| | - Kun Zhang
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,College of Bioengineering Chongqing University, Chongqing, China
| | - Wen He
- Department of Geriatrics, Clinical trial center, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China
| | - Mingqing Dong
- Center for Medicine Research and Translation, Chengdu Fifth People’s Hospital, Chengdu, Sichuan, China,*Correspondence: Mingqing Dong, ; Guicheng Wu,
| | - Guicheng Wu
- Clinical Research Center for Endocrinology and Metabolic Diseases, Chongqing University Three Gorges Hospital, Chongqing, China,*Correspondence: Mingqing Dong, ; Guicheng Wu,
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Zhao J, Li J, Li G, Chen M. The role of mitochondria-associated membranes mediated ROS on NLRP3 inflammasome in cardiovascular diseases. Front Cardiovasc Med 2022; 9:1059576. [PMID: 36588561 PMCID: PMC9794868 DOI: 10.3389/fcvm.2022.1059576] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/01/2022] [Indexed: 12/15/2022] Open
Abstract
Reactive oxygen species (ROS) metabolism is essential for the homeostasis of cells. Appropriate production of ROS is an important signaling molecule, but excessive ROS production can damage cells. ROS and ROS-associated proteins can act as damage associated molecular pattern molecules (DAMPs) to activate the NACHT, LRR, and PYD domains-containing protein 3 (NLRP3) inflammasome in cardiovascular diseases. Previous studies have shown that there are connected sites, termed mitochondria-associated membranes (MAMs), between mitochondria and the endoplasmic reticulum. In cardiovascular disease progression, MAMs play multiple roles, the most important of which is the ability to mediate ROS generation, which further activates the NLPR3 inflammasome, exacerbating the progression of disease. In this review, the following topics will be covered: 1. Molecular structures on MAMs that can mediate ROS generation; 2. Specific mechanisms of molecule-mediated ROS generation and the molecules' roles in cardiovascular disease, 3. The effects of MAMs-mediated ROS on the NLRP3 inflammasome in cardiovascular disease. The purpose of this review is to provide a basis for subsequent clinical treatment development.
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Affiliation(s)
- Jiahao Zhao
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, China,Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Junli Li
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Guoyong Li
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, China,Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China,Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Mao Chen
- Laboratory of Heart Valve Disease, West China Hospital, Sichuan University, Chengdu, China,Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China,*Correspondence: Mao Chen
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50
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Chang X, Li Y, Cai C, Wu F, He J, Zhang Y, Zhong J, Tan Y, Liu R, Zhu H, Zhou H. Mitochondrial quality control mechanisms as molecular targets in diabetic heart. Metabolism 2022; 137:155313. [PMID: 36126721 DOI: 10.1016/j.metabol.2022.155313] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/28/2022] [Accepted: 09/15/2022] [Indexed: 12/28/2022]
Abstract
Mitochondrial dysfunction has been regarded as a hallmark of diabetic cardiomyopathy. In addition to their canonical metabolic actions, mitochondria influence various other aspects of cardiomyocyte function, including oxidative stress, iron regulation, metabolic reprogramming, intracellular signaling transduction and cell death. These effects depend on the mitochondrial quality control (MQC) system, which includes mitochondrial dynamics, mitophagy and mitochondrial biogenesis. Mitochondria are not static entities, but dynamic units that undergo fission and fusion cycles to maintain their structural integrity. Increased mitochondrial fission elevates the number of mitochondria within cardiomyocytes, a necessary step for cardiomyocyte metabolism. Enhanced mitochondrial fusion promotes communication and cooperation between pairs of mitochondria, thus facilitating mitochondrial genomic repair and maintenance. On the contrary, erroneous fission or reduced fusion promotes the formation of mitochondrial fragments that contain damaged mitochondrial DNA and exhibit impaired oxidative phosphorylation. Under normal/physiological conditions, injured mitochondria can undergo mitophagy, a degradative process that delivers poorly structured mitochondria to lysosomes. However, defective mitophagy promotes the accumulation of nonfunctional mitochondria, which may induce cardiomyocyte death. A decline in the mitochondrial population due to mitophagy can stimulate mitochondrial biogenesis), which generates new mitochondrial offspring to maintain an adequate mitochondrial number. Energy crises or ATP deficiency also increase mitochondrial biogenesis, because mitochondrial DNA encodes 13 subunits of the electron transport chain (ETC) complexes. Disrupted mitochondrial biogenesis diminishes the mitochondrial mass, accelerates mitochondrial senescence and promotes mitochondrial dysfunction. In this review, we describe the involvement of MQC in the pathogenesis of diabetic cardiomyopathy. Besides, the potential targeted therapies that could be applied to improve MQC during diabetic cardiomyopathy are also discussed and accelerate the development of cardioprotective drugs for diabetic patients.
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Affiliation(s)
- Xing Chang
- Guang'anmen Hospital of Chinese Academy of Traditional Chinese Medicine, Beijing, China
| | - Yukun Li
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chen Cai
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Feng Wu
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jing He
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yaoyuan Zhang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jiankai Zhong
- Department of Critical Care Medicine, The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Ying Tan
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ruxiu Liu
- Guang'anmen Hospital of Chinese Academy of Traditional Chinese Medicine, Beijing, China
| | - Hang Zhu
- Senior Department of Cardiology, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing 100048, China.
| | - Hao Zhou
- Senior Department of Cardiology, The Sixth Medical Center of People's Liberation Army General Hospital, Beijing 100048, China.
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