1
|
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.
Collapse
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.
| |
Collapse
|
2
|
Nagarkoti S, Kim YM, Das A, Ash D, A Vitriol E, Read TA, Sudhahar V, Hossain MS, Yadav S, McMenamin M, Kelley S, Lucas R, Stepp D, Belin de Chantemele EJ, Caldwell RB, Fulton DJ, Fukai T, Ushio-Fukai M. Endothelial Drp1 Couples VEGF-induced Redox Signaling with Glycolysis Through Cysteine Oxidation to Drive Angiogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.15.599174. [PMID: 38915542 PMCID: PMC11195263 DOI: 10.1101/2024.06.15.599174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Angiogenesis plays a vital role for postnatal development and tissue repair following ischemia. Reactive oxygen species (ROS) generated by NADPH oxidases (NOXes) and mitochondria act as signaling molecules that promote angiogenesis in endothelial cells (ECs) which mainly relies on aerobic glycolysis for ATP production. However, the connections linking redox signaling with glycolysis are not well understood. The GTPase Drp1 is a member of the dynamin superfamily that moves from cytosol to mitochondria through posttranslational modifications to induce mitochondrial fission. The role of Drp1 in ROS-dependent VEGF signaling and angiogenesis in ECs has not been previously described. Here, we identify an unexpected function of endothelial Drp1 as a redox sensor, transmitting VEGF-induced H 2 O 2 signals to enhance glycolysis and angiogenesis. Loss of Drp1 expression in ECs inhibited VEGF-induced angiogenic responses. Mechanistically, VEGF rapidly induced the NOX4-dependent sulfenylation (CysOH) of Drp1 on Cys 644 , promoting disulfide bond formation with the metabolic kinase AMPK and subsequent sulfenylation of AMPK at Cys 299 / 304 via the mitochondrial fission-mitoROS axis. This cysteine oxidation of AMPK, in turn, enhanced glycolysis and angiogenesis. In vivo , mice with EC-specific Drp1 deficiency or CRISPR/Cas9-engineered "redox-dead" (Cys to Ala) Drp1 knock-in mutations exhibited impaired retinal angiogenesis and post-ischemic neovascularization. Our findings uncover a novel role for endothelial Drp1 in linking VEGF-induced mitochondrial redox signaling to glycolysis through a cysteine oxidation-mediated Drp1-AMPK redox relay, driving both developmental and reparative angiogenesis.
Collapse
|
3
|
Xu M, Wang W, Cheng J, Qu H, Xu M, Wang L. Effects of mitochondrial dysfunction on cellular function: Role in atherosclerosis. Biomed Pharmacother 2024; 174:116587. [PMID: 38636397 DOI: 10.1016/j.biopha.2024.116587] [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: 12/20/2023] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024] Open
Abstract
Atherosclerosis, an immunoinflammatory disease of medium and large arteries, is associated with life-threatening clinical events, such as acute coronary syndromes and stroke. Chronic inflammation and impaired lipoprotein metabolism are considered to be among the leading causes of atherosclerosis, while numerous risk factors, including arterial hypertension, diabetes mellitus, obesity, and aging, can contribute to the development of the disease. In recent years, emerging evidence has underlined the key role of mitochondrial dysfunction in the pathogenesis of atherosclerosis. Mitochondrial dysfunction is believed to result in an increase in reactive oxygen species, leading to oxidative stress, chronic inflammation, and intracellular lipid deposition, all of which can contribute to the pathogenesis of atherosclerosis. Critical cells, including endothelial cells, vascular smooth muscle cells, and macrophages, play an important role in atherosclerosis. Mitochondrial function is also involved in maintaining the normal function of these cells. To better understand the relationship between mitochondrial dysfunction and atherosclerosis, this review summarizes the findings of recent studies and discusses the role of mitochondrial dysfunction in the risk factors and critical cells of atherosclerosis. FACTS: OPEN QUESTIONS.
Collapse
Affiliation(s)
- Minwen Xu
- Clinical Skills Center, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Wenjun Wang
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Jingpei Cheng
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China; Basic Medical College, Gannan Medical University, Ganzhou 341000, China
| | - Hongen Qu
- Gannan Normal University, Ganzhou 341000, China.
| | - Minjuan Xu
- Department of Obstetrics and Gynecology, Ganzhou People's Hospital, Ganzhou 341000, China.
| | - Liefeng Wang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou 341000, China; Basic Medical College, Gannan Medical University, Ganzhou 341000, China.
| |
Collapse
|
4
|
Fang X, Zhang Y, Wu H, Wang H, Miao R, Wei J, Zhang Y, Tian J, Tong X. Mitochondrial regulation of diabetic endothelial dysfunction: Pathophysiological links. Int J Biochem Cell Biol 2024; 170:106569. [PMID: 38556159 DOI: 10.1016/j.biocel.2024.106569] [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: 12/07/2023] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Micro- and macrovascular complications frequently occur in patients with diabetes, with endothelial dysfunction playing a key role in the development and progression of the complications. For the early diagnosis and optimal treatment of vascular complications associated with diabetes, it is imperative to comprehend the cellular and molecular mechanisms governing the function of diabetic endothelial cells. Mitochondria function as crucial sensors of environmental and cellular stress regulating endothelial cell viability, structural integrity and function. Impaired mitochondrial quality control mechanisms and mitochondrial dysfunction are the main features of endothelial damage. Hence, targeted mitochondrial therapy is considered promising novel therapeutic options in vascular complications of diabetes. In this review, we focus on the mitochondrial functions in the vascular endothelial cells and the pathophysiological role of mitochondria in diabetic endothelial dysfunction, aiming to provide a reference for related drug development and clinical diagnosis and treatment.
Collapse
Affiliation(s)
- Xinyi Fang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yanjiao Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Haoran Wu
- Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Han Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Runyu Miao
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jiahua Wei
- Graduate College, Changchun University of Chinese Medicine, Jilin 130117, China
| | - Yuxin Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Jiaxing Tian
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| | - Xiaolin Tong
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| |
Collapse
|
5
|
Zhang R, Yang H, Guo M, Niu S, Xue Y. Mitophagy and its regulatory mechanisms in the biological effects of nanomaterials. J Appl Toxicol 2024. [PMID: 38642013 DOI: 10.1002/jat.4609] [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: 02/18/2024] [Revised: 03/13/2024] [Accepted: 03/22/2024] [Indexed: 04/22/2024]
Abstract
Mitophagy is a selective cellular process critical for the removal of damaged mitochondria. It is essential in regulating mitochondrial number, ensuring mitochondrial functionality, and maintaining cellular equilibrium, ultimately influencing cell destiny. Numerous pathologies, such as neurodegenerative diseases, cardiovascular disorders, cancers, and various other conditions, are associated with mitochondrial dysfunctions. Thus, a detailed exploration of the regulatory mechanisms of mitophagy is pivotal for enhancing our understanding and for the discovery of novel preventive and therapeutic options for these diseases. Nanomaterials have become integral in biomedicine and various other sectors, offering advanced solutions for medical uses including biological imaging, drug delivery, and disease diagnostics and therapy. Mitophagy is vital in managing the cellular effects elicited by nanomaterials. This review provides a comprehensive analysis of the molecular mechanisms underpinning mitophagy, underscoring its significant influence on the biological responses of cells to nanomaterials. Nanoparticles can initiate mitophagy via various pathways, among which the PINK1-Parkin pathway is critical for cellular defense against nanomaterial-induced damage by promoting mitophagy. The role of mitophagy in biological effects was induced by nanomaterials, which are associated with alterations in Ca2+ levels, the production of reactive oxygen species, endoplasmic reticulum stress, and lysosomal damage.
Collapse
Affiliation(s)
- Rui Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Haitao Yang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Menghao Guo
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Shuyan Niu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| |
Collapse
|
6
|
Gedawy A, Al-Salami H, Dass CR. Biochemical changes to the inner ear contributing to diabetes-induced hearing loss: possible pharmacological targets for therapy. J Pharm Pharmacol 2024; 76:295-306. [PMID: 38206827 DOI: 10.1093/jpp/rgad124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVES Biochemical alterations due to diabetes development and progress are complex and diabetes-associated injury to various tissues has been well reported. Nevertheless, a close investigation of the literature demonstrates limited coverage regarding these biochemical and molecular alterations within the inner ear and their impact on the vestibulocochlear environment. A closer look at these may reveal pharmacological targets that could alleviate the severity of disease in patients. KEY FINDINGS Tight control of glucose levels within the highly metabolic inner ear structures is crucial for their physiology and function. Impaired glucose homeostasis is well known to occur in vestibulocochlear malfunctioning. Moreover, the involvement of insulin signalling, and glucose transporters were recently confirmed in vestibulocochlear structures and are believed to play a crucial role in auditory and vestibular functions. CONCLUSION Oxidative overload, glucolipotoxicity, perturbed blood rheology, endothelial dysfunction, compromised microvascular supply, and neurotoxicity are reported in many diabetic complications such as nephropathy, retinopathy, and diabetic neuropathy and are incriminated in the disruption of blood labyrinth barrier as well as vestibulocochlear neuritis. Dysfunctional insulin signalling was recently reported in the Organ of Corti. Insulin resistance in the inner ear niche warrants further studies to verify and uncover new pharmacological targets to manage this debilitating condition better.
Collapse
Affiliation(s)
- Ahmed Gedawy
- Curtin Medical School, Curtin University, Bentley 6102, Australia
- Curtin Health Innovation Research Institute, Bentley 6102, Australia
| | - Hani Al-Salami
- Curtin Medical School, Curtin University, Bentley 6102, Australia
- Curtin Health Innovation Research Institute, Bentley 6102, Australia
| | - Crispin R Dass
- Curtin Medical School, Curtin University, Bentley 6102, Australia
- Curtin Health Innovation Research Institute, Bentley 6102, Australia
| |
Collapse
|
7
|
Zeng X, Ma S, Luo Y, Zhang Y, Wang Q, Zhang Z, Ke W, Ma Y, Hu H, Hartung T, Wei Y, Zhong X. Environmentally Relevant Concentrations of Tetrabromobisphenol A Exposure Impends Neurovascular Formation through Perturbing Mitochondrial Metabolism in Zebrafish Embryos and Human Primary Endothelial Cells. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5267-5278. [PMID: 38478874 DOI: 10.1021/acs.est.3c10132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Tetrabromobisphenol A (TBBPA), the most extensively utilized brominated flame retardant, has raised growing concerns regarding its environmental and health risks. Neurovascular formation is essential for metabolically supporting neuronal networks. However, previous studies primarily concerned the neuronal injuries of TBBPA, its impact on the neurovascularture, and molecular mechanism, which are yet to be elucidated. In this study, 5, 30, 100, 300 μg/L of TBBPA were administered to Tg (fli1a: eGFP) zebrafish larvae at 2-72 h postfertilization (hpf). The findings revealed that TBBPA impaired cerebral and ocular angiogenesis in zebrafish. Metabolomics analysis showed that TBBPA-treated neuroendothelial cells exhibited disruption of the TCA cycle and the Warburg effect pathway. TBBPA induced a significant reduction in glycolysis and mitochondrial ATP production rates, accompanied by mitochondrial fragmentation and an increase in mitochondrial reactive oxygen species (mitoROS) production in neuroendothelial cells. The supplementation of alpha-ketoglutaric acid, a key metabolite of the TCA cycle, mitigated TBBPA-induced mitochondrial damage, reduced mitoROS production, and restored angiogenesis in zebrafish larvae. Our results suggested that TBBPA exposure impeded neurovascular injury via mitochondrial metabolic perturbation mediated by mitoROS signaling, providing novel insight into the neurovascular toxicity and mode of action of TBBPA.
Collapse
Affiliation(s)
- Xiangyu Zeng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Shengtao Ma
- School of Public Health, Guangzhou Medical University, Guangzhou 511436, China
| | - Yijun Luo
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yangjian Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qi Wang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhuyi Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Weijian Ke
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Ya Ma
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Haichen Hu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Thomas Hartung
- Center for Alternatives to Animal Testing, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21230, United States
- University of Konstanz, Konstanz 78464, Germany
| | - Yanhong Wei
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiali Zhong
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| |
Collapse
|
8
|
Kulovic-Sissawo A, Tocantins C, Diniz MS, Weiss E, Steiner A, Tokic S, Madreiter-Sokolowski CT, Pereira SP, Hiden U. Mitochondrial Dysfunction in Endothelial Progenitor Cells: Unraveling Insights from Vascular Endothelial Cells. BIOLOGY 2024; 13:70. [PMID: 38392289 PMCID: PMC10886154 DOI: 10.3390/biology13020070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024]
Abstract
Endothelial dysfunction is associated with several lifestyle-related diseases, including cardiovascular and neurodegenerative diseases, and it contributes significantly to the global health burden. Recent research indicates a link between cardiovascular risk factors (CVRFs), excessive production of reactive oxygen species (ROS), mitochondrial impairment, and endothelial dysfunction. Circulating endothelial progenitor cells (EPCs) are recruited into the vessel wall to maintain appropriate endothelial function, repair, and angiogenesis. After attachment, EPCs differentiate into mature endothelial cells (ECs). Like ECs, EPCs are also susceptible to CVRFs, including metabolic dysfunction and chronic inflammation. Therefore, mitochondrial dysfunction of EPCs may have long-term effects on the function of the mature ECs into which EPCs differentiate, particularly in the presence of endothelial damage. However, a link between CVRFs and impaired mitochondrial function in EPCs has hardly been investigated. In this review, we aim to consolidate existing knowledge on the development of mitochondrial and endothelial dysfunction in the vascular endothelium, place it in the context of recent studies investigating the consequences of CVRFs on EPCs, and discuss the role of mitochondrial dysfunction. Thus, we aim to gain a comprehensive understanding of mechanisms involved in EPC deterioration in relation to CVRFs and address potential therapeutic interventions targeting mitochondrial health to promote endothelial function.
Collapse
Affiliation(s)
- Azra Kulovic-Sissawo
- Perinatal Research Laboratory, Department of Obstetrics and Gynaecology, Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- Research Unit Early Life Determinants (ELiD), Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
| | - Carolina Tocantins
- Perinatal Research Laboratory, Department of Obstetrics and Gynaecology, Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- Research Unit Early Life Determinants (ELiD), Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- CNC-UC-Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-504 Coimbra, Portugal
- Doctoral Programme in Experimental Biology and Biomedicine (PDBEB), Institute for Interdisciplinary Research (IIIUC), University of Coimbra, 3004-531 Coimbra, Portugal
| | - Mariana S Diniz
- Perinatal Research Laboratory, Department of Obstetrics and Gynaecology, Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- Research Unit Early Life Determinants (ELiD), Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- CNC-UC-Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-504 Coimbra, Portugal
- Doctoral Programme in Experimental Biology and Biomedicine (PDBEB), Institute for Interdisciplinary Research (IIIUC), University of Coimbra, 3004-531 Coimbra, Portugal
| | - Elisa Weiss
- Perinatal Research Laboratory, Department of Obstetrics and Gynaecology, Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- Research Unit Early Life Determinants (ELiD), Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
| | - Andreas Steiner
- Perinatal Research Laboratory, Department of Obstetrics and Gynaecology, Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- Research Unit Early Life Determinants (ELiD), Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
| | - Silvija Tokic
- Research Unit of Analytical Mass Spectrometry, Cell Biology and Biochemistry of Inborn Errors of Metabolism, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Auenbruggerplatz 34, 8036 Graz, Austria
| | - Corina T Madreiter-Sokolowski
- Division of Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstraße 6, 8010 Graz, Austria
| | - Susana P Pereira
- CNC-UC-Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, 3004-504 Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-504 Coimbra, Portugal
- Laboratory of Metabolism and Exercise (LaMetEx), Research Centre in Physical Activity, Health and Leisure (CIAFEL), Laboratory for Integrative and Translational Research in Population Health (ITR), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal
| | - Ursula Hiden
- Perinatal Research Laboratory, Department of Obstetrics and Gynaecology, Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
- Research Unit Early Life Determinants (ELiD), Medical University of Graz, Auenbruggerplatz 14, 8036 Graz, Austria
| |
Collapse
|
9
|
Urbisz AZ, Małota K, Chajec Ł, Sawadro MK. Size-dependent and sex-specific negative effects of micro- and nano-sized polystyrene particles in the terrestrial invertebrate model Drosophila melanogaster. Micron 2024; 176:103560. [PMID: 37871471 DOI: 10.1016/j.micron.2023.103560] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023]
Abstract
Microplastic pollution is believed to be one of the most widespread and long-lasting changes on a global scale. Our understanding that microplastics significantly impact terrestrial systems and are a global change stressor continues to grow. In the present study, we investigated the negative effect of long-term (28 days of exposure in food) polystyrene particles of micro (1.0-1.9 µm, 0.4-0.6 µm) and nano (0.04-0.06 µm) scale, in low doses, on the fruit fly - representing a common, globally distributed terrestrial invertebrate, and a model species in many fields. Our observations involved such parameters as ingestion and transfer of particles, survival, reproduction, changes in ultrastructure and tissue and cell responses in midgut epithelium (the place of direct contact with plastic), ovary, and testis in adults, and transgenerational effects in larvae. These observations may indicate possible toxic effects of the tested substances, even in low doses, that can be expected in other taxa, in terrestrial ecosystems. We observed a negative impact of polystyrene particles on the fruit fly survival, midgut, ovary, and testis, involving ultrastructural alterations, such as autophagy and/or ultimately necrosis in the midgut, triggering oxidative stress and activating processes of antioxidative protection. Despite the changes, midgut function and reproduction were not altered - spermatogenesis and oogenesis proceeded normally. The effect was size-dependent - the smaller the polystyrene particles were, the more substantial was the impact they caused. Ultrastructural changes and studied parameters, i.e., generation of ROS (overproduction of which generates oxidative stress), total glutathione concentration (involved in defense against ROS, acting in distinct pathways), and total antioxidant concentration (the oxidative defense system) showed the highest levels after exposure to the smallest nanoparticles, and vice versa. The effect was also sex-dependent, with male flies being more sensitive. Negative effects in males were more substantial and more prominent, even after contact with larger particles, compared to females. The smaller particles (0.4-0.6 µm, 0.04-0.06 µm) were transferred to the ovary and accumulated in the oocytes. In this case, a transgenerational negative effect was detected in larvae. It was characterized by size-dependent alterations, with smaller particles triggering higher levels of ROS and cellular oxidative response. Only the largest particles (1.0-1.9 µm) did not pass into the gonad and did not alter the larvae. These observations together demonstrated that polystyrene particles of micro- and nanoscale, even in a low dose, can induce numerous negative effects on terrestrial invertebrates.
Collapse
Affiliation(s)
- Anna Z Urbisz
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland.
| | - Karol Małota
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| | - Łukasz Chajec
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| | - Marta K Sawadro
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| |
Collapse
|
10
|
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.
Collapse
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.
| |
Collapse
|
11
|
Wang W, Chang R, Wang Y, Hou L, Wang Q. Mitophagy-dependent mitochondrial ROS mediates 2,5-hexanedione-induced NLRP3 inflammasome activation in BV2 microglia. Neurotoxicology 2023; 99:50-58. [PMID: 37722613 DOI: 10.1016/j.neuro.2023.09.008] [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: 05/05/2023] [Revised: 09/07/2023] [Accepted: 09/14/2023] [Indexed: 09/20/2023]
Abstract
We recently revealed a pivotal role of NLRP3 inflammasome in the neurotoxicity induced by n-hexane, owing to its activation and release of pro-inflammatory cytokines. However, the mechanisms of how the activation of NLRP3 inflammasome was triggered by 2,5-hexanedione (HD), the toxic product of n-hexane metabolism, remain to be explored. Here, we investigated whether mitochondrial reactive oxygen species (mtROS) was involved in HD-elicited NLRP3 inflammasome activation in microglia. We demonstrated that exposure to HD at 4 and 8 mM elevated production of mtROS in BV2 microglia. Scavenging mtROS by Mito-TEMPO, an mtROS scavenger, dramatically reduced HD-induced NLRP3 expression, caspase-1 activation and interleukin-1β production, pointing a crucial role of mtROS in NLRP3 inflammasome activation. Mechanistic study revealed that HD intoxication promoted activation of mitophagy. HD induced expression of Beclin-1, LC3II, and two mitophagy-related proteins, i.e., Pink1 and Parkin and simultaneously, reduced p62 expression in both whole cell and isolated mitochondria of microglia. Furthermore, inhibition of mitophagy by 3-methyladenine (3-MA) greatly reduced production of mtROS, expression of mitochondrial fission-related proteins, dynamin-related protein 1 (Drp1) and fission protein 1 (Fis1) and activation of NLRP3 inflammasome in HD-intoxicated microglia. Blocking mitochondrial fission by Mdivi-1 also prevented HD-induced mtROS production and NLRP3 inflammasome activation in microglia. In conclusion, our data indicated that HD triggered activation of NLRP3 inflammasome through mitophagy-dependent mtROS production, offering an important insight for the immunopathogenesis of environmental toxins-induced neuroinflammation and neurotoxicity.
Collapse
Affiliation(s)
- Wenqiong Wang
- School of Public Health, Dalian Medical University, Dalian, China
| | - Rui Chang
- School of Public Health, Dalian Medical University, Dalian, China
| | - Yan Wang
- The second division, unit 32752, the Chinese People's Liberation Army, Dalian, China
| | - Liyan Hou
- Dalian Medical University Library, Dalian Medical University, No. 9 W. Lvshun South Road, Dalian 116044, China.
| | - Qingshan Wang
- School of Public Health, Dalian Medical University, Dalian, China; National-Local Joint Engineering Research Center for Drug-Research and Development (R & D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China.
| |
Collapse
|
12
|
Wang T, Wang X, Fu T, Ma Y, Wang Q, Zhang S, Zhang X, Zhou H, Chang X, Tong Y. Roles of mitochondrial dynamics and mitophagy in diabetic myocardial microvascular injury. Cell Stress Chaperones 2023; 28:675-688. [PMID: 37755621 PMCID: PMC10746668 DOI: 10.1007/s12192-023-01384-3] [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: 07/28/2023] [Revised: 09/04/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023] Open
Abstract
Myocardial microvessels are composed of a monolayer of endothelial cells, which play a crucial role in maintaining vascular barrier function, luminal latency, vascular tone, and myocardial perfusion. Endothelial dysfunction is a key factor in the development of cardiac microvascular injury and diabetic cardiomyopathy. In addition to their role in glucose oxidation and energy metabolism, mitochondria also participate in non-metabolic processes such as apoptosis, intracellular ion handling, and redox balancing. Mitochondrial dynamics and mitophagy are responsible for regulating the quality and quantity of mitochondria in response to hyperglycemia. However, these endogenous homeostatic mechanisms can both preserve and/or disrupt non-metabolic mitochondrial functions during diabetic endothelial damage and cardiac microvascular injury. This review provides an overview of the molecular features and regulatory mechanisms of mitochondrial dynamics and mitophagy. Furthermore, we summarize findings from various investigations that suggest abnormal mitochondrial dynamics and defective mitophagy contribute to the development of diabetic endothelial dysfunction and myocardial microvascular injury. Finally, we discuss different therapeutic strategies aimed at improving endothelial homeostasis and cardiac microvascular function through the enhancement of mitochondrial dynamics and mitophagy.
Collapse
Affiliation(s)
- Tong Wang
- Heilongjiang Academy of Chinese Medicine, Harbin, 150000, China
| | - Xinwei Wang
- Heilongjiang Academy of Chinese Medicine, Harbin, 150000, China
| | - Tong Fu
- Brandeis University, Waltham, MA, 02453, USA
| | - Yanchun Ma
- Heilongjiang Academy of Chinese Medicine, Harbin, 150000, China
| | - Qi Wang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Shuxiang Zhang
- Heilongjiang Academy of Chinese Medicine, Harbin, 150000, China
| | - Xiao Zhang
- 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
| | - Xing Chang
- Cardiovascular Department, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
| | - Ying Tong
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, China.
| |
Collapse
|
13
|
Atawia RT, Batori R, Jordan CR, Kennard S, Antonova G, Bruder-Nascimento T, Mehta V, Saeed MI, Patel VS, Fukai T, Ushio-Fukai M, Huo Y, Fulton DJR, de Chantemèle EJB. Type 1 Diabetes Impairs Endothelium-Dependent Relaxation Via Increasing Endothelial Cell Glycolysis Through Advanced Glycation End Products, PFKFB3, and Nox1-Mediated Mechanisms. Hypertension 2023; 80:2059-2071. [PMID: 37729634 PMCID: PMC10514399 DOI: 10.1161/hypertensionaha.123.21341] [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: 04/16/2023] [Accepted: 08/02/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND Type 1 diabetes (T1D) is a major cause of endothelial dysfunction. Although cellular bioenergetics has been identified as a new regulator of vascular function, whether glycolysis, the primary bioenergetic pathway in endothelial cells (EC), regulates vascular tone and contributes to impaired endothelium-dependent relaxation (EDR) in T1D remains unknown. METHODS Experiments were conducted in Akita mice with intact or selective deficiency in EC PFKFB3 (6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3), the main regulator of glycolysis. Seahorse analyzer and myography were employed to measure glycolysis and mitochondrial respiration, and EDR, respectively, in aortic explants. EC PFKFB3 (Ad-PFKFB3) and glycolysis (Ad-GlycoHi) were increased in situ via adenoviral transduction. RESULTS T1D increased EC glycolysis and elevated EC expression of PFKFB3 and NADPH oxidase Nox1 (NADPH oxidase homolog 1). Functionally, pharmacological and genetic inhibition of PFKFB3 restored EDR in T1D, while in situ aorta EC transduction with Ad-PFKFB3 or Ad-GlycoHi reproduced the impaired EDR associated with T1D. Nox1 inhibition restored EDR in aortic rings from Akita mice, as well as in Ad-PFKFB3-transduced aorta EC and lactate-treated wild-type aortas. T1D increased the expression of the advanced glycation end product precursor methylglyoxal in the aortas. Exposure of the aortas to methylglyoxal impaired EDR, which was prevented by PFKFB3 inhibition. T1D and exposure to methylglyoxal increased EC expression of HIF1α (hypoxia-inducible factor 1α), whose inhibition blunted methylglyoxal-mediated EC PFKFB3 upregulation. CONCLUSIONS EC bioenergetics, namely glycolysis, is a new regulator of vasomotion and excess glycolysis, a novel mechanism of endothelial dysfunction in T1D. We introduce excess methylglyoxal, HIF1α, and PFKFB3 as major effectors in T1D-mediated increased EC glycolysis.
Collapse
Affiliation(s)
- Reem T. Atawia
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Abasia, Cairo, Egypt
| | - Robert Batori
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Coleton R. Jordan
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Simone Kennard
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Galina Antonova
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | | | - Vinay Mehta
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Muhammad I. Saeed
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Vijay S Patel
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Yuqing Huo
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - David JR Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | | |
Collapse
|
14
|
Wen W, Zheng H, Li W, Huang G, Chen P, Zhu X, Cao Y, Li J, Huang X, Huang Y. Transcription factor EB: A potential integrated network regulator in metabolic-associated cardiac injury. Metabolism 2023; 147:155662. [PMID: 37517793 DOI: 10.1016/j.metabol.2023.155662] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/01/2023]
Abstract
With the worldwide pandemic of metabolic diseases, such as obesity, diabetes, and non-alcoholic fatty liver disease (NAFLD), cardiometabolic disease (CMD) has become a significant cause of death in humans. However, the pathophysiology of metabolic-associated cardiac injury is complex and not completely clear, and it is important to explore new strategies and targets for the treatment of CMD. A series of pathophysiological disturbances caused by metabolic disorders, such as insulin resistance (IR), hyperglycemia, hyperlipidemia, mitochondrial dysfunction, oxidative stress, inflammation, endoplasmic reticulum stress (ERS), autophagy dysfunction, calcium homeostasis imbalance, and endothelial dysfunction, may be related to the incidence and development of CMD. Transcription Factor EB (TFEB), as a transcription factor, has been extensively studied for its role in regulating lysosomal biogenesis and autophagy. Recently, the regulatory role of TFEB in other biological processes, including the regulation of glucose homeostasis, lipid metabolism, etc. has been gradually revealed. In this review, we will focus on the relationship between TFEB and IR, lipid metabolism, endothelial dysfunction, oxidative stress, inflammation, ERS, calcium homeostasis, autophagy, and mitochondrial quality control (MQC) and the potential regulatory mechanisms among them, to provide a comprehensive summary for TFEB as a potential new therapeutic target for CMD.
Collapse
Affiliation(s)
- Weixing Wen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Haoxiao Zheng
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Weiwen Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Guolin Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Peng Chen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaolin Zhu
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Yue Cao
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Jiahuan Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaohui Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Yuli Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia; Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation Research, Guangzhou, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| |
Collapse
|
15
|
Caturano A, D’Angelo M, Mormone A, Russo V, Mollica MP, Salvatore T, Galiero R, Rinaldi L, Vetrano E, Marfella R, Monda M, Giordano A, Sasso FC. Oxidative Stress in Type 2 Diabetes: Impacts from Pathogenesis to Lifestyle Modifications. Curr Issues Mol Biol 2023; 45:6651-6666. [PMID: 37623239 PMCID: PMC10453126 DOI: 10.3390/cimb45080420] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/09/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023] Open
Abstract
Oxidative stress is a critical factor in the pathogenesis and progression of diabetes and its associated complications. The imbalance between reactive oxygen species (ROS) production and the body's antioxidant defence mechanisms leads to cellular damage and dysfunction. In diabetes, chronic hyperglycaemia and mitochondrial dysfunction contribute to increased ROS production, further exacerbating oxidative stress. This oxidative burden adversely affects various aspects of diabetes, including impaired beta-cell function and insulin resistance, leading to disrupted glucose regulation. Additionally, oxidative stress-induced damage to blood vessels and impaired endothelial function contribute to the development of diabetic vascular complications such as retinopathy, nephropathy, and cardiovascular diseases. Moreover, organs and tissues throughout the body, including the kidneys, nerves, and eyes, are vulnerable to oxidative stress, resulting in diabetic nephropathy, neuropathy, and retinopathy. Strategies to mitigate oxidative stress in diabetes include antioxidant therapy, lifestyle modifications, and effective management of hyperglycaemia. However, further research is necessary to comprehensively understand the underlying mechanisms of oxidative stress in diabetes and to evaluate the efficacy of antioxidant interventions in preventing and treating diabetic complications. By addressing oxidative stress, it might be possible to alleviate the burden of diabetes and improve patient outcomes.
Collapse
Affiliation(s)
- Alfredo Caturano
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
- Department of Experimental Medicine, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy; (M.D.)
| | - Margherita D’Angelo
- Department of Experimental Medicine, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy; (M.D.)
- Department of Biology, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Andrea Mormone
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| | - Vincenzo Russo
- Department of Biology, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
- Division of Cardiology, Department of Medical Translational Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| | - Maria Pina Mollica
- Department of Biology, University of Naples Federico II, I-80134 Naples, Italy
| | - Teresa Salvatore
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| | - Raffaele Galiero
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| | - Luca Rinaldi
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| | - Erica Vetrano
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| | - Raffaele Marfella
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| | - Marcellino Monda
- Department of Experimental Medicine, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy; (M.D.)
| | - Antonio Giordano
- Department of Biology, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Ferdinando Carlo Sasso
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, I-80138 Naples, Italy
| |
Collapse
|
16
|
Belosludtseva NV, Serov DA, Starinets VS, Penkov NV, Belosludtsev KN. Alterations in Mitochondrial Morphology and Quality Control in Primary Mouse Lung Microvascular Endothelial Cells and Human Dermal Fibroblasts under Hyperglycemic Conditions. Int J Mol Sci 2023; 24:12485. [PMID: 37569860 PMCID: PMC10419261 DOI: 10.3390/ijms241512485] [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: 07/13/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023] Open
Abstract
The effect of hyperglycemia on the morphology of individual mitochondria and the state of the mitochondrial network in primary mouse lung microvascular endotheliocytes and human dermal fibroblasts has been investigated. The cells were exposed to high (30 mM) and low (5.5 mM) glucose concentrations for 36 h. In primary endotheliocytes, hyperglycemic stress induced a significant increase in the number of mitochondria and a decrease in the interconnectivity value of the mitochondrial network, which was associated with a decrease in the mean size of the mitochondria. Analysis of the mRNA level of the genes of proteins responsible for mitochondrial biogenesis and mitophagy revealed an increase in the expression level of the Ppargc1a, Pink1, and Parkin genes, indicating stimulated mitochondrial turnover in endotheliocytes under high glucose conditions. In primary fibroblasts, hyperglycemia caused a decrease in the number of mitochondria and an increase in their size. As a result, the mitochondria exhibited higher values for elongation. In parallel, the mRNA level of the Ppargc1a and Mfn2 genes in fibroblasts exposed to hyperglycemia was reduced. These findings indicate that high glucose concentrations induced cell-specific morphological rearrangements of individual mitochondria and the mitochondrial network, which may be relevant during mitochondria-targeted drug testing and therapy for hyperglycemic and diabetic conditions.
Collapse
Affiliation(s)
- Natalia V. Belosludtseva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, 142290 Pushchino, Russia;
| | - Dmitriy A. Serov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov St. 38, 119991 Moscow, Russia;
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya 3, 142290 Pushchino, Russia;
| | - Vlada S. Starinets
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, 142290 Pushchino, Russia;
| | - Nikita V. Penkov
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya 3, 142290 Pushchino, Russia;
| | - Konstantin N. Belosludtsev
- Department of Biochemistry, Cell Biology and Microbiology, Mari State University, pl. Lenina 1, 424001 Yoshkar-Ola, Russia
| |
Collapse
|
17
|
Yu T, Wang L, Zhang L, Deuster PA. Mitochondrial Fission as a Therapeutic Target for Metabolic Diseases: Insights into Antioxidant Strategies. Antioxidants (Basel) 2023; 12:1163. [PMID: 37371893 DOI: 10.3390/antiox12061163] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Mitochondrial fission is a crucial process in maintaining metabolic homeostasis in normal physiology and under conditions of stress. Its dysregulation has been associated with several metabolic diseases, including, but not limited to, obesity, type 2 diabetes (T2DM), and cardiovascular diseases. Reactive oxygen species (ROS) serve a vital role in the genesis of these conditions, and mitochondria are both the main sites of ROS production and the primary targets of ROS. In this review, we explore the physiological and pathological roles of mitochondrial fission, its regulation by dynamin-related protein 1 (Drp1), and the interplay between ROS and mitochondria in health and metabolic diseases. We also discuss the potential therapeutic strategies of targeting mitochondrial fission through antioxidant treatments for ROS-induced conditions, including the effects of lifestyle interventions, dietary supplements, and chemicals, such as mitochondrial division inhibitor-1 (Mdivi-1) and other mitochondrial fission inhibitors, as well as certain commonly used drugs for metabolic diseases. This review highlights the importance of understanding the role of mitochondrial fission in health and metabolic diseases, and the potential of targeting mitochondrial fission as a therapeutic approach to protecting against these conditions.
Collapse
Affiliation(s)
- Tianzheng Yu
- Consortium for Health and Military Performance, Department of Military and Emergency Medicine, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD 20817, USA
| | - Li Wang
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD 20817, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Department of Pathology, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA
| | - Lei Zhang
- Center for the Study of Traumatic Stress, Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Patricia A Deuster
- Consortium for Health and Military Performance, Department of Military and Emergency Medicine, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA
| |
Collapse
|
18
|
Jin Z, Ji Y, Su W, Zhou L, Wu X, Gao L, Guo J, Liu Y, Zhang Y, Wen X, Xia ZY, Xia Z, Lei S. The role of circadian clock-controlled mitochondrial dynamics in diabetic cardiomyopathy. Front Immunol 2023; 14:1142512. [PMID: 37215098 PMCID: PMC10196400 DOI: 10.3389/fimmu.2023.1142512] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/24/2023] [Indexed: 05/24/2023] Open
Abstract
Diabetes mellitus is a metabolic disease with a high prevalence worldwide, and cardiovascular complications are the leading cause of mortality in patients with diabetes. Diabetic cardiomyopathy (DCM), which is prone to heart failure with preserved ejection fraction, is defined as a cardiac dysfunction without conventional cardiac risk factors such as coronary heart disease and hypertension. Mitochondria are the centers of energy metabolism that are very important for maintaining the function of the heart. They are highly dynamic in response to environmental changes through mitochondrial dynamics. The disruption of mitochondrial dynamics is closely related to the occurrence and development of DCM. Mitochondrial dynamics are controlled by circadian clock and show oscillation rhythm. This rhythm enables mitochondria to respond to changing energy demands in different environments, but it is disordered in diabetes. In this review, we summarize the significant role of circadian clock-controlled mitochondrial dynamics in the etiology of DCM and hope to play a certain enlightening role in the treatment of DCM.
Collapse
Affiliation(s)
- Zhenshuai Jin
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yanwei Ji
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wating Su
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lu Zhou
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaojing Wu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lei Gao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Junfan Guo
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yutong Liu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yuefu Zhang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xinyu Wen
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhong-Yuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhengyuan Xia
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Shaoqing Lei
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
19
|
Liu W, Wang Y, Wang T, Wang L, Hu S, Tian D. A versatile AIE probe with mitochondria targeting for dual-channel detection of superoxide anion and viscosity. Anal Chim Acta 2023; 1253:341099. [PMID: 36965989 DOI: 10.1016/j.aca.2023.341099] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
Abnormal viscosity and excessive superoxide anion (O2•-) levels in living cells often cause a series of biological dysfunction and oxidative damage. However, a great challenge remains in quickly and conveniently detecting the viscosity and O2•- levels in living cells. Herein, we fabricated a versatile aggregation-induced emission (AIE) probe with mitochondria targeting, DTPB, for dual-imaging of viscosity and O2•- level in living cells with two different channels. The obtained DTPB contained a diphenyl phosphinic acid unit responsive to O2•-, a unit with twisted intramolecular charge trans (TICT) function responsive to viscosity, and a pyridine cation unit with mitochondria targeting. The results showed that DTPB exhibited a remarkable response to viscosity with a near-infrared emission peak at 671 nm and was highly sensitive to O2•- levels with an emission peak at 587 nm. The dual-channel probe has great application prospects in the visual diagnosis of cancer and related diseases.
Collapse
Affiliation(s)
- Wei Liu
- School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi, 445000, PR China
| | - Yan Wang
- School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi, 445000, PR China
| | - Tengfei Wang
- School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi, 445000, PR China
| | - Liwen Wang
- School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi, 445000, PR China
| | - Sheng Hu
- School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi, 445000, PR China
| | - Dating Tian
- School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi, 445000, PR China.
| |
Collapse
|
20
|
Furuta K, Tang X, Islam S, Tapia A, Chen ZB, Ibrahim SH. Endotheliopathy in the metabolic syndrome: Mechanisms and clinical implications. Pharmacol Ther 2023; 244:108372. [PMID: 36894027 PMCID: PMC10084912 DOI: 10.1016/j.pharmthera.2023.108372] [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: 11/30/2022] [Revised: 02/25/2023] [Accepted: 02/28/2023] [Indexed: 03/09/2023]
Abstract
The increasing prevalence of the metabolic syndrome (MetS) is a threat to global public health due to its lethal complications. Nonalcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the MetS characterized by hepatic steatosis, which is potentially progressive to the inflammatory and fibrotic nonalcoholic steatohepatitis (NASH). The adipose tissue (AT) is also a major metabolic organ responsible for the regulation of whole-body energy homeostasis, and thereby highly involved in the pathogenesis of the MetS. Recent studies suggest that endothelial cells (ECs) in the liver and AT are not just inert conduits but also crucial mediators in various biological processes via the interaction with other cell types in the microenvironment both under physiological and pathological conditions. Herein, we highlight the current knowledge of the role of the specialized liver sinusoidal endothelial cells (LSECs) in NAFLD pathophysiology. Next, we discuss the processes through which AT EC dysfunction leads to MetS progression, with a focus on inflammation and angiogenesis in the AT as well as on endothelial-to-mesenchymal transition of AT-ECs. In addition, we touch upon the function of ECs residing in other metabolic organs including the pancreatic islet and the gut, the dysregulation of which may also contribute to the MetS. Finally, we highlight potential EC-based therapeutic targets for human MetS, and NASH based on recent achievements in basic and clinical research and discuss how to approach unsolved problems in the field.
Collapse
Affiliation(s)
- Kunimaro Furuta
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA; Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Xiaofang Tang
- Department of Diabetes Complications & Metabolism, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Shahidul Islam
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Alonso Tapia
- Department of Diabetes Complications & Metabolism, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Zhen Bouman Chen
- Department of Diabetes Complications & Metabolism, City of Hope Comprehensive Cancer Center, Duarte, CA, USA.
| | - Samar H Ibrahim
- Division of Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA; Division of Pediatric Gastroenterology & Hepatology, Mayo Clinic, Rochester, MN, USA.
| |
Collapse
|
21
|
Rodríguez AG, Rodríguez JZ, Barreto A, Sanabria-Barrera S, Iglesias J, Morales L. Impact of Acute High Glucose on Mitochondrial Function in a Model of Endothelial Cells: Role of PDGF-C. Int J Mol Sci 2023; 24:ijms24054394. [PMID: 36901825 PMCID: PMC10003065 DOI: 10.3390/ijms24054394] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/13/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023] Open
Abstract
An increase in plasma high glucose promotes endothelial dysfunction mainly through increasing mitochondrial ROS production. High glucose ROS-induced has been implicated in the fragmentation of the mitochondrial network, mainly by an unbalance expression of mitochondrial fusion and fission proteins. Mitochondrial dynamics alterations affect cellular bioenergetics. Here, we assessed the effect of PDGF-C on mitochondrial dynamics and glycolytic and mitochondrial metabolism in a model of endothelial dysfunction induced by high glucose. High glucose induced a fragmented mitochondrial phenotype associated with the reduced expression of OPA1 protein, high DRP1pSer616 levels and reduced basal respiration, maximal respiration, spare respiratory capacity, non-mitochondrial oxygen consumption and ATP production, regarding normal glucose. In these conditions, PDGF-C significantly increased the expression of OPA1 fusion protein, diminished DRP1pSer616 levels and restored the mitochondrial network. On mitochondrial function, PDGF-C increased the non-mitochondrial oxygen consumption diminished by high glucose conditions. These results suggest that PDGF-C modulates the damage induced by HG on the mitochondrial network and morphology of human aortic endothelial cells; additionally, it compensates for the alteration in the energetic phenotype induced by HG.
Collapse
Affiliation(s)
- Adriana Grismaldo Rodríguez
- Experimental and Computational Biochemistry Group, Faculty of Sciences, Nutrition and Biochemistry Department, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
- Correspondence: (A.G.R.); (L.M.); Tel.: +57-3114566976 (A.G.R.); +57-3132107272 (L.M.)
| | - Jairo Zamudio Rodríguez
- Experimental and Computational Biochemistry Group, Faculty of Sciences, Nutrition and Biochemistry Department, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Alfonso Barreto
- Immunology and Cell Biology Group, Faculty of Sciences, Microbiology Department, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Sandra Sanabria-Barrera
- Bioengineering FCV Research Group, Department of Innovation and Technological Development, Fundación Cardiovascular de Colombia, Floridablanca 680004, Colombia
| | - José Iglesias
- Experimental and Computational Biochemistry Group, Faculty of Sciences, Nutrition and Biochemistry Department, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Ludis Morales
- Experimental and Computational Biochemistry Group, Faculty of Sciences, Nutrition and Biochemistry Department, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
- Correspondence: (A.G.R.); (L.M.); Tel.: +57-3114566976 (A.G.R.); +57-3132107272 (L.M.)
| |
Collapse
|
22
|
Zhu T, Hu Q, Yuan Y, Yao H, Zhang J, Qi J. Mitochondrial dynamics in vascular remodeling and target-organ damage. Front Cardiovasc Med 2023; 10:1067732. [PMID: 36860274 PMCID: PMC9970102 DOI: 10.3389/fcvm.2023.1067732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
Vascular remodeling is the pathological basis for the development of many cardiovascular diseases. The mechanisms underlying endothelial cell dysfunction, smooth muscle cell phenotypic switching, fibroblast activation, and inflammatory macrophage differentiation during vascular remodeling remain elusive. Mitochondria are highly dynamic organelles. Recent studies showed that mitochondrial fusion and fission play crucial roles in vascular remodeling and that the delicate balance of fusion-fission may be more important than individual processes. In addition, vascular remodeling may also lead to target-organ damage by interfering with the blood supply to major body organs such as the heart, brain, and kidney. The protective effect of mitochondrial dynamics modulators on target-organs has been demonstrated in numerous studies, but whether they can be used for the treatment of related cardiovascular diseases needs to be verified in future clinical studies. Herein, we summarize recent advances regarding mitochondrial dynamics in multiple cells involved in vascular remodeling and associated target-organ damage.
Collapse
Affiliation(s)
- Tong Zhu
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingxun Hu
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University, School of Medicine, Shanghai University, Shanghai, China,Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai, China
| | - Yanggang Yuan
- Department of Nephrology, The First Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Huijuan Yao
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Zhang
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China,Jian Zhang,
| | - Jia Qi
- Department of Pharmacy, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China,*Correspondence: Jia Qi,
| |
Collapse
|
23
|
Chen M, Zhang Q, Wang S, Zheng F. Inhibition of diabetes-induced Drp1 deSUMOylation prevents retinal vascular lesions associated with diabetic retinopathy. Exp Eye Res 2023; 226:109334. [PMID: 36435207 DOI: 10.1016/j.exer.2022.109334] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/17/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022]
Abstract
Retinal microvascular endothelial cell (RMEC) injury plays an important role in the pathophysiology diabetic retinopathy (DR). The GTPase dynamin-related protein 1 (Drp1), crucial to mitochondrial dynamics, has been implicated in hyperglycaemia-induced microvascular damage. Moreover, Drp1 can be deSUMOylated by the enzyme sentrin/SUMO-specific protease 3 (SENP3). Whether SENP3/deSUMOylated Drp1 can aggravate DR is unclear. Therefore, we designed this experiment to investigate the role of SENP3/desumoylated Drp1 in DR in vitro and in vivo. Murine RMECs (mRMECs) were classified into a control (CON), high-glucose (HG) and high-glucose + SENP3-siRNA (HG-siRNA) groups. The SENP3 and SUMOylated/deSUMOylated drp1 levels, mitochondrial morphology, mitochondrial membrane potential (MMP) and apoptosis rate were evaluated. In vivo, mice were assigned to a normal, type 2 diabetic or type 2 diabetic SENP3-siRNA mouse groups. Then, blood-retinal barrier function and retinal tissue structure were evaluated. As compared to those in the control group, the SENP3 and Drp1 levels, degree of mitochondrial fragmentation, extent of MMP loss and apoptosis rate of mRMECs were significantly increased in the HG group. However, inhibited SENP3 expression increased the level of SUMOylated Drp1 in the mRMECs and reduced the hyperglycaemia-induced mitochondrial damage and apoptosis rate. These experimental results were confirmed by diabetic animal experiments showing that inhibited SENP3 expression attenuated the increase in retinal permeability and diabetic retinopathy, suggesting that SENP3/deSUMOylated Drp1 activation aggravated DR by disrupting mitochondrial dynamics and apoptosis. Furthermore, blocking SENP3 expression significantly attenuated RMEC damage and DR.
Collapse
Affiliation(s)
- Min Chen
- Department of Rheumatology and Immunology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei, China
| | - Qianhui Zhang
- Department of Rheumatology and Immunology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei, China
| | - Shun Wang
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei, China
| | - Feng Zheng
- Department of Anaesthesiology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei, China.
| |
Collapse
|
24
|
Hypoglycemic Effect of the N-Butanol Fraction of Torreya grandis Leaves on Type 2 Diabetes Mellitus in Rats through the Amelioration of Oxidative Stress and Enhancement of β-Cell Function. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5648896. [PMID: 36619301 PMCID: PMC9812625 DOI: 10.1155/2022/5648896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 10/03/2022] [Accepted: 11/16/2022] [Indexed: 12/31/2022]
Abstract
Materials and Methods Sprague-Dawley rats were randomly divided into six groups: control, T2DM, metformin, high-dose BFTL (800 mg/kg), middle-dose BFTL (400 mg/kg), and low-dose BFTL (200 mg/kg). After 4 weeks of BFTL treatment, the correlations of serum indicators with protein expression in tissue were determined, and pathological changes in the liver, kidneys, and pancreas were analyzed. Results Compared with the results in the T2DM group, serum fasting blood glucose, triglyceride, total cholesterol, malondialdehyde, alanine aminotransferase, and aspartate aminotransferase levels were significantly decreased (p < 0.05), whereas superoxide dismutase and glutathione peroxidase levels were significantly increased (p < 0.05) in the high-, middle-, and low-dose BFTL groups. The treatment also improved oral glucose tolerance. In addition, the pathological changes of the liver, kidney, and pancreas were improved by BFTL treatment. Cytochrome and caspase-3 expression in pancreatic was significantly decreased (p < 0.05) by BFTL treatment, whereas the Bcl-2/Bax ratio was significantly increased (p < 0.05). Discussion and Conclusion. BFTL exerted significant hypoglycemic effect on T2DM model rats, and its mechanism involved the suppression of blood glucose levels and oxidative stress by improving the metabolism of blood lipids and antioxidant capacity, boosting β-cell function, and inhibiting β-cell apoptosis.
Collapse
|
25
|
Sidestream Smoke Extracts from Harm-Reduction and Conventional Camel Cigarettes Inhibit Osteogenic Differentiation via Oxidative Stress and Differential Activation of intrinsic Apoptotic Pathways. Antioxidants (Basel) 2022; 11:antiox11122474. [PMID: 36552682 PMCID: PMC9774253 DOI: 10.3390/antiox11122474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Epidemiological studies suggest cigarette smoking as a probable environmental factor for a variety of congenital anomalies, including low bone mass, increased fracture risk and poor skeletal health. Human and animal in vitro models have confirmed hypomineralization of differentiating cell lines with sidestream smoke being more harmful to developing cells than mainstream smoke. Furthermore, first reports are emerging to suggest a differential impact of conventional versus harm-reduction tobacco products on bone tissue as it develops in the embryo or in vitro. To gather first insight into the molecular mechanism of such differences, we assessed the effect of sidestream smoke solutions from Camel (conventional) and Camel Blue (harm-reduction) cigarettes using a human embryonic stem cell osteogenic differentiation model. Sidestream smoke from the conventional Camel cigarettes concentration-dependently inhibited in vitro calcification triggered by high levels of mitochondrially generated oxidative stress, loss of mitochondrial membrane potential, and reduced ATP production. Camel sidestream smoke also induced DNA damage and caspase 9-dependent apoptosis. Camel Blue-exposed cells, in contrast, invoked only intermediate levels of reactive oxygen species insufficient to activate caspase 3/7. Despite the absence of apoptotic gene activation, damage to the mitochondrial phenotype was still noted concomitant with activation of an anti-inflammatory gene signature and inhibited mineralization. Collectively, the presented findings in differentiating pluripotent stem cells imply that embryos may exhibit low bone mineral density if exposed to environmental smoke during development.
Collapse
|
26
|
Hu XQ, Zhang L. Oxidative Regulation of Vascular Ca v1.2 Channels Triggers Vascular Dysfunction in Hypertension-Related Disorders. Antioxidants (Basel) 2022; 11:antiox11122432. [PMID: 36552639 PMCID: PMC9774363 DOI: 10.3390/antiox11122432] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/28/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Blood pressure is determined by cardiac output and peripheral vascular resistance. The L-type voltage-gated Ca2+ (Cav1.2) channel in small arteries and arterioles plays an essential role in regulating Ca2+ influx, vascular resistance, and blood pressure. Hypertension and preeclampsia are characterized by high blood pressure. In addition, diabetes has a high prevalence of hypertension. The etiology of these disorders remains elusive, involving the complex interplay of environmental and genetic factors. Common to these disorders are oxidative stress and vascular dysfunction. Reactive oxygen species (ROS) derived from NADPH oxidases (NOXs) and mitochondria are primary sources of vascular oxidative stress, whereas dysfunction of the Cav1.2 channel confers increased vascular resistance in hypertension. This review will discuss the importance of ROS derived from NOXs and mitochondria in regulating vascular Cav1.2 and potential roles of ROS-mediated Cav1.2 dysfunction in aberrant vascular function in hypertension, diabetes, and preeclampsia.
Collapse
|
27
|
Coronary Microvascular Dysfunction in Diabetes Mellitus: Pathogenetic Mechanisms and Potential Therapeutic Options. Biomedicines 2022; 10:biomedicines10092274. [PMID: 36140374 PMCID: PMC9496134 DOI: 10.3390/biomedicines10092274] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Diabetic patients are frequently affected by coronary microvascular dysfunction (CMD), a condition consisting of a combination of altered vasomotion and long-term structural change to coronary arterioles leading to impaired regulation of blood flow in response to changing cardiomyocyte oxygen requirements. The pathogenesis of this microvascular complication is complex and not completely known, involving several alterations among which hyperglycemia and insulin resistance play particularly central roles leading to oxidative stress, inflammatory activation and altered barrier function of endothelium. CMD significantly contributes to cardiac events such as angina or infarction without obstructive coronary artery disease, as well as heart failure, especially the phenotype associated with preserved ejection fraction, which greatly impact cardiovascular (CV) prognosis. To date, no treatments specifically target this vascular damage, but recent experimental studies and some clinical investigations have produced data in favor of potential beneficial effects on coronary micro vessels caused by two classes of glucose-lowering drugs: glucagon-like peptide 1 (GLP-1)-based therapy and inhibitors of sodium-glucose cotransporter-2 (SGLT2). The purpose of this review is to describe pathophysiological mechanisms, clinical manifestations of CMD with particular reference to diabetes, and to summarize the protective effects of antidiabetic drugs on the myocardial microvascular compartment.
Collapse
|
28
|
Abstract
Diabetes has become one of the most prevalent endocrine and metabolic diseases that threaten human health, and it is accompanied by serious complications. Therefore, it is vital and pressing to develop novel strategies or tools for prewarning and therapy of diabetes and its complications. Fluorescent probes have been widely applied in the detection of diabetes due to the fact of their attractive advantages. In this report, we comprehensively summarize the recent progress and development of fluorescent probes in detecting the changes in the various biomolecules in diabetes and its complications. We also discuss the design of fluorescent probes for monitoring diabetes in detail. We expect this review will provide new ideas for the development of fluorescent probes suitable for the prewarning and therapy of diabetes in future clinical transformation and application.
Collapse
|
29
|
The Role of Mitochondria in Metabolic Syndrome–Associated Cardiomyopathy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9196232. [PMID: 35783195 PMCID: PMC9246605 DOI: 10.1155/2022/9196232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/12/2022] [Accepted: 06/13/2022] [Indexed: 12/03/2022]
Abstract
With the rapid development of society, the incidence of metabolic syndrome (MS) is increasing rapidly. Evidence indicated that patients diagnosed with MS usually suffered from cardiomyopathy, called metabolic syndrome–associated cardiomyopathy (MSC). The clinical characteristics of MSC included cardiac hypertrophy and diastolic dysfunction, followed by heart failure. Despite many studies on this topic, the detailed mechanisms are not clear yet. As the center of cellular metabolism, mitochondria are crucial for maintaining heart function, while mitochondria dysfunction plays a vital role through mechanisms such as mitochondrial energy deprivation, calcium disorder, and ROS (reactive oxygen species) imbalance during the development of MSC. Accordingly, in this review, we will summarize the characteristics of MSC and especially focus on the mechanisms related to mitochondria. In addition, we will update new therapeutic strategies in this field.
Collapse
|
30
|
Chehaitly A, Guihot AL, Proux C, Grimaud L, Aurrière J, Legouriellec B, Rivron J, Vessieres E, Tétaud C, Zorzano A, Procaccio V, Joubaud F, Reynier P, Lenaers G, Loufrani L, Henrion D. Altered Mitochondrial Opa1-Related Fusion in Mouse Promotes Endothelial Cell Dysfunction and Atherosclerosis. Antioxidants (Basel) 2022; 11:antiox11061078. [PMID: 35739974 PMCID: PMC9219969 DOI: 10.3390/antiox11061078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 12/22/2022] Open
Abstract
Flow (shear stress)-mediated dilation (FMD) of resistance arteries is a rapid endothelial response involved in tissue perfusion. FMD is reduced early in cardiovascular diseases, generating a major risk factor for atherosclerosis. As alteration of mitochondrial fusion reduces endothelial cells’ (ECs) sprouting and angiogenesis, we investigated its role in ECs responses to flow. Opa1 silencing reduced ECs (HUVECs) migration and flow-mediated elongation. In isolated perfused resistance arteries, FMD was reduced in Opa1+/− mice, a model of the human disease due to Opa1 haplo-insufficiency, and in mice with an EC specific Opa1 knock-out (EC-Opa1). Reducing mitochondrial oxidative stress restored FMD in EC-Opa1 mice. In isolated perfused kidneys from EC-Opa1 mice, flow induced a greater pressure, less ATP, and more H2O2 production, compared to control mice. Opa1 expression and mitochondrial length were reduced in ECs submitted in vitro to disturbed flow and in vivo in the atheroprone zone of the mouse aortic cross. Aortic lipid deposition was greater in Ldlr−/--Opa1+/- and in Ldlr−/--EC-Opa1 mice than in control mice fed with a high-fat diet. In conclusion, we found that reduction in mitochondrial fusion in mouse ECs altered the dilator response to shear stress due to excessive superoxide production and induced greater atherosclerosis development.
Collapse
Affiliation(s)
- Ahmad Chehaitly
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Anne-Laure Guihot
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Coralyne Proux
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Linda Grimaud
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Jade Aurrière
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Benoit Legouriellec
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Jordan Rivron
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Emilie Vessieres
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Clément Tétaud
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Antonio Zorzano
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac, 10–12, 08028 Barcelona, Spain;
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biologie, University of Barcelona, 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, C/ de Monforte de Lemos, 5, 28029 Madrid, Spain
| | - Vincent Procaccio
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
- University Hospital (CHU) of Angers, 4 rue Larrey, F-49933 Angers, France;
| | - Françoise Joubaud
- University Hospital (CHU) of Angers, 4 rue Larrey, F-49933 Angers, France;
| | - Pascal Reynier
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
- University Hospital (CHU) of Angers, 4 rue Larrey, F-49933 Angers, France;
| | - Guy Lenaers
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
- University Hospital (CHU) of Angers, 4 rue Larrey, F-49933 Angers, France;
| | - Laurent Loufrani
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
| | - Daniel Henrion
- MITOVASC Department, Team 2 (CarMe), ICAT SFR, University of Angers, 3 rue Roger Amsler, F-49500 Angers, France; (A.C.); (A.-L.G.); (C.P.); (L.G.); (J.A.); (B.L.); (J.R.); (E.V.); (C.T.); (V.P.); (P.R.); (G.L.); (L.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 3 rue Roger Amsler, F-49500 Angers, France
- Centre National de la Recherche Scientifique (CNRS) UMR 6015, 3 rue Roger Amsler, F-49500 Angers, France
- University Hospital (CHU) of Angers, 4 rue Larrey, F-49933 Angers, France;
- Correspondence: ; Tel.: +33-2-41-73-58-45
| |
Collapse
|
31
|
To EE, Erlich JR, Liong F, Liong S, Luong R, Oseghale O, Miles MA, Papagianis PC, Quinn KM, Bozinovski S, Vlahos R, Brooks RD, O’Leary JJ, Brooks DA, Selemidis S. Therapeutic Targeting of Endosome and Mitochondrial Reactive Oxygen Species Protects Mice From Influenza Virus Morbidity. Front Pharmacol 2022; 13:870156. [PMID: 35401240 PMCID: PMC8984148 DOI: 10.3389/fphar.2022.870156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/02/2022] [Indexed: 11/29/2022] Open
Abstract
There is an urgent need to develop effective therapeutic strategies including immunomodulators to combat influenza A virus (IAV) infection. Influenza A viruses increase ROS production, which suppress anti-viral responses and contribute to pathological inflammation and morbidity. Two major cellular sites of ROS production are endosomes via the NOX2-oxidase enzyme and the electron transport chain in mitochondria. Here we examined the effect of administration of Cgp91ds-TAT, an endosome-targeted NOX2 oxidase inhibitor, in combination with mitoTEMPO, a mitochondrial ROS scavenger and compared it to monotherapy treatment during an established IAV infection. Mice were infected with IAV (Hkx31 strain; 104PFU/mouse) and 24 h post infection were treated with Cgp91ds-TAT (0.2 mg/kg), mitoTEMPO (100 μg) or with a combination of these inhibitors [Cgp91ds-TAT (0.2 mg/kg)/mitoTEMPO (100 μg)] intranasally every day for up to 2 days post infection (pi). Mice were euthanized on Days 3 or 6 post infection for analyses of disease severity. A combination of Cgp91ds-TAT and mitoTEMPO treatment was more effective than the ROS inhibitors alone at reducing airway and neutrophilic inflammation, bodyweight loss, lung oedema and improved the lung pathology with a reduction in alveolitis following IAV infection. Dual ROS inhibition also caused a significant elevation in Type I IFN expression at the early phase of infection (day 3 pi), however, this response was suppressed at the later phase of infection (day 6 pi). Furthermore, combined treatment with Cgp91ds-TAT and mitoTEMPO resulted in an increase in IAV-specific CD8+ T cells in the lungs. In conclusion, this study demonstrates that the reduction of ROS production in two major subcellular sites, i.e. endosomes and mitochondria, by intranasal delivery of a combination of Cgp91ds-TAT and mitoTEMPO, suppresses the severity of influenza infection and highlights a novel immunomodulatory approach for IAV disease management.
Collapse
Affiliation(s)
- Eunice E. To
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- F.M Kirby Neurobiology Centre, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Jonathan R. Erlich
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Felicia Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Stella Liong
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Raymond Luong
- Department of Pharmacology, Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia
| | - Osezua Oseghale
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Mark A. Miles
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Paris C. Papagianis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Kylie M. Quinn
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Steven Bozinovski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Ross Vlahos
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Robert D. Brooks
- Cancer Research Institute and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
| | - John J. O’Leary
- Sir Patrick Dun’s Laboratory, Central Pathology Laboratory, Department of Histopathology Trinity College Dublin, Dublin, Ireland
- Molecular Pathology Laboratory, Coombe Women and Infants’ University Hospital, Dublin, Ireland
| | - Doug A. Brooks
- Cancer Research Institute and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
- Molecular Pathology Laboratory, Coombe Women and Infants’ University Hospital, Dublin, Ireland
| | - Stavros Selemidis
- School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
- *Correspondence: Stavros Selemidis,
| |
Collapse
|
32
|
Fan Y, Cheng Z, Mao L, Xu G, Li N, Zhang M, Weng P, Zheng L, Dong X, Hu S, Wang B, Qin X, Jiang X, Chen C, Zhang J, Zou Z. PINK1/TAX1BP1-directed mitophagy attenuates vascular endothelial injury induced by copper oxide nanoparticles. J Nanobiotechnology 2022; 20:149. [PMID: 35305662 PMCID: PMC8934125 DOI: 10.1186/s12951-022-01338-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 02/26/2022] [Indexed: 12/22/2022] Open
Abstract
Copper oxide nanoparticles (CuONPs) are widely used metal oxide NPs owing to their excellent physical–chemical properties. Circulation translocation of CuONPs after inhalation leads to vascular endothelial injury. Mitochondria, an important regulatory hub for maintaining cell functions, are signaling organelles in responses to NPs-induced injury. However, how mitochondrial dynamics (fission and fusion) and mitophagy (an autophagy process to degrade damaged mitochondria) are elaborately orchestrated to maintain mitochondrial homeostasis in CuONPs-induced vascular endothelial injury is still unclear. In this study, we demonstrated that CuONPs exposure disturbed mitochondrial dynamics through oxidative stress-dependent manner in vascular endothelial cells, as evidenced by the increase of mitochondrial fission and the accumulation of fragmented mitochondria. Inhibition of mitochondrial fission with Mdivi-1 aggravated CuONPs-induced mtROS production and cell death. Furthermore, we found that mitochondrial fission led to the activation of PINK1-mediated mitophagy, and pharmacological inhibition with wortmannin, chloroquine or genetical inhibition with siRNA-mediated knockdown of PINK1 profoundly repressed mitophagy, suggesting that the protective role of mitochondrial fission and PINK1-mediated mitophagy in CuONPs-induced toxicity. Intriguingly, we identified that TAX1BP1 was the primary receptor to link the ubiquitinated mitochondria with autophagosomes, since TAX1BP1 knockdown elevated mtROS production, decreased mitochondrial clearance and aggravated CuONPs-induced cells death. More importantly, we verified that urolithin A, a mitophagy activator, promoted mtROS clearance and the removal of damaged mitochondria induced by CuONPs exposure both in vitro and in vivo. Overall, our findings indicated that modulating mitophagy may be a therapeutic strategy for pathological vascular endothelial injury caused by NPs exposure. CuONPs disturb mitochondrial dynamics and trigger mitophagy in vascular endothelial cells and mouse blood vessel. PINK1/TAX1BP1-mediated mitophagy regulates the removal of excessive ROS and aberrant mitochondria in CuONPs-treated vascular endothelial cells. The mitophagy activator urolithin A attenuates CuONPs-induced vascular endothelial cells death and mice vascular injury.
Collapse
Affiliation(s)
- Yinzhen Fan
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Zhenli Cheng
- Department of Cardiovascular Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China.,Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Lejiao Mao
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Dongsheng Lung‒Brain Diseases Joint Laboratory, Chongqing Medical University, Chongqing, 400016, China
| | - Ge Xu
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Na Li
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Mengling Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Ping Weng
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Lijun Zheng
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Xiaomei Dong
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Siyao Hu
- College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China
| | - Bin Wang
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Xia Qin
- Department of Pharmacy, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Dongsheng Lung‒Brain Diseases Joint Laboratory, Chongqing Medical University, Chongqing, 400016, China
| | - Xuejun Jiang
- Center of Experimental Teaching for Public Health, Experimental Teaching and Management Center, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Dongsheng Lung‒Brain Diseases Joint Laboratory, Chongqing Medical University, Chongqing, 400016, China
| | - Chengzhi Chen
- Department of Occupational and Environmental Health, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Dongsheng Lung‒Brain Diseases Joint Laboratory, Chongqing Medical University, Chongqing, 400016, China
| | - Jun Zhang
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China. .,Dongsheng Lung‒Brain Diseases Joint Laboratory, Chongqing Medical University, Chongqing, 400016, China.
| | - Zhen Zou
- Molecular Biology Laboratory of Respiratory Disease, Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, People's Republic of China. .,Dongsheng Lung‒Brain Diseases Joint Laboratory, Chongqing Medical University, Chongqing, 400016, China.
| |
Collapse
|
33
|
Molecular mechanisms of coronary microvascular endothelial dysfunction in diabetes mellitus: focus on mitochondrial quality surveillance. Angiogenesis 2022; 25:307-329. [PMID: 35303170 DOI: 10.1007/s10456-022-09835-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/07/2022] [Indexed: 12/12/2022]
Abstract
Coronary microvascular endothelial dysfunction is both a culprit and a victim of diabetes, and can accelerate diabetes-related microvascular and macrovascular complications by promoting vasoconstrictive, pro-inflammatory and pro-thrombotic responses. Perturbed mitochondrial function induces oxidative stress, disrupts metabolism and activates apoptosis in endothelial cells, thus exacerbating the progression of coronary microvascular complications in diabetes. The mitochondrial quality surveillance (MQS) system responds to stress by altering mitochondrial metabolism, dynamics (fission and fusion), mitophagy and biogenesis. Dysfunctional mitochondria are prone to fission, which generates two distinct types of mitochondria: one with a normal and the other with a depolarized mitochondrial membrane potential. Mitochondrial fusion and mitophagy can restore the membrane potential and homeostasis of defective mitochondrial fragments. Mitophagy-induced decreases in the mitochondrial population can be reversed by mitochondrial biogenesis. MQS abnormalities induce pathological mitochondrial fission, delayed mitophagy, impaired metabolism and defective biogenesis, thus promoting the accumulation of unhealthy mitochondria and the activation of mitochondria-dependent apoptosis. In this review, we examine the effects of MQS on mitochondrial fitness and explore the association of MQS disorders with coronary microvascular endothelial dysfunction in diabetes. We also discuss the potential to treat diabetes-related coronary microvascular endothelial dysfunction using novel MQS-altering drugs.
Collapse
|
34
|
Urbisz AZ, Chajec Ł, Małota K, Student S, Sawadro MK, Śliwińska MA, Świątek P. All for one - changes in mitochondrial morphology and activity during syncytial oogenesis. Biol Reprod 2022; 106:1232-1253. [PMID: 35156116 DOI: 10.1093/biolre/ioac035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 12/23/2021] [Accepted: 02/10/2022] [Indexed: 11/14/2022] Open
Abstract
The syncytial groups of germ cells (germ-line cysts) forming in ovaries of clitellate annelids are an attractive model to study mitochondrial stage-specific changes. Using transmission electron microscopy, serial block-face scanning electron microscopy, and fluorescent microscopy, we analyzed the mitochondria distribution and morphology and the state of membrane potential in female cysts in Enchytraeus albidus. We visualized in 3D at the ultrastructural level mitochondria in cysts at successive stages: 2-celled, 4-celled, 16-celled cysts, and cyst in advanced oogenesis. We found that mitochondria form extensive aggregates - they are fused and connected into large and branched mitochondrial networks. The most extensive networks are formed with up to 10,000 fused mitochondria, whereas individual organelles represent up to 2% of the total mitochondrial volume. We classify such morphology of mitochondria as a dynamic hyperfusion state, and suggest that it can maintain their high activity and intensifies the process of cellular respiration within the syncytial cysts. We found some individual mitochondria undergoing degradation, which implies that damaged mitochondria are removed from networks for their final elimination. As it was shown that growing oocytes possess less active mitochondria than the nurse cells, it suggests that the high activity of mitochondria in the nurse cells and their dynamic hyperfusion state serve the needs of the growing oocyte. Additionally, we measured by calorimetry the total antioxidant capacity of germ-line cysts in comparison to somatic tissue, and it suggests that antioxidative defense systems, together with mitochondrial networks, can effectively protect germ-line mitochondria from damage.
Collapse
Affiliation(s)
- Anna Z Urbisz
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - Łukasz Chajec
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - Karol Małota
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - Sebastian Student
- Institute of Automatic Control, Silesian University of Technology, Gliwice, Poland
| | - Marta K Sawadro
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| | - Małgorzata A Śliwińska
- Nencki Institute of Experimental Biology of Polish Academy of Sciences, Laboratory of Imaging Tissue Structure and Function, Warsaw, Poland
| | - Piotr Świątek
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Katowice, Poland
| |
Collapse
|
35
|
Zhang C, Zhang B, Zhang X, Wang M, Sun X, Sun G. Panax notoginseng Saponin Protects Against Diabetic Cardiomyopathy Through Lipid Metabolism Modulation. J Am Heart Assoc 2022; 11:e023540. [PMID: 35112884 PMCID: PMC9245810 DOI: 10.1161/jaha.121.023540] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background People with diabetes are more likely to develop cardiovascular diseases. Lipotoxicity plays a key role in the development of diabetic cardiomyopathy. Panax notoginseng saponin (PNS) has been used to treat diabetes and obesity. However, the role of PNS in diabetic cardiomyopathy remains unclear. Methods and Results Diabetic db/db mice received high‐dose (200 mg/kg per day) or medium‐dose (100 mg/kg per day) PNS by gavage for 12 weeks until week 36. Lipid accumulation and cardiac function in diabetic mice were detected and possible mechanisms involved were explored. PNS significantly improved body weight, body fat content, serum lipids, adipocytokines, and antioxidative function in db/db mice. Lipid accumulation in adipose tissue, liver, and heart were also alleviated by PNS treatment. Cardiac function and mitochondrial structure were also improved by PNS. H9c2 cells were treated with palmitate acid, and PNS pretreatment reduced lipid accumulation, mitochondrial reactive oxygen species, as well as improved mitochondrial membrane potential and mitochondrial oxygen consumption rate. Levels of proteins and expression of genes related to glucose and lipid metabolism, antioxidative function, and mitochondrial dynamics were also improved by PNS administration. Conclusions PNS attenuated heart dysfunction in diabetic mice by reducing lipotoxicity as well as modulating oxidative stress and improving mitochondrial function.
Collapse
Affiliation(s)
- Chenyang Zhang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijingChina
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal MedicineMinistry of EducationBeijingChina
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic DisordersState Administration of Traditional Chinese MedicineBeijingChina
- NMPA Key Laboratory for Research and Evaluation of PharmacovigilanceBeijingChina
- Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health ProductsBeijingChina
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijingChina
| | - Bin Zhang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijingChina
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal MedicineMinistry of EducationBeijingChina
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic DisordersState Administration of Traditional Chinese MedicineBeijingChina
- NMPA Key Laboratory for Research and Evaluation of PharmacovigilanceBeijingChina
- Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health ProductsBeijingChina
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijingChina
| | - Xuelian Zhang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijingChina
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal MedicineMinistry of EducationBeijingChina
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic DisordersState Administration of Traditional Chinese MedicineBeijingChina
- NMPA Key Laboratory for Research and Evaluation of PharmacovigilanceBeijingChina
- Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health ProductsBeijingChina
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijingChina
| | - Min Wang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijingChina
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal MedicineMinistry of EducationBeijingChina
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic DisordersState Administration of Traditional Chinese MedicineBeijingChina
- NMPA Key Laboratory for Research and Evaluation of PharmacovigilanceBeijingChina
- Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health ProductsBeijingChina
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijingChina
| | - Xiaobo Sun
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijingChina
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal MedicineMinistry of EducationBeijingChina
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic DisordersState Administration of Traditional Chinese MedicineBeijingChina
- NMPA Key Laboratory for Research and Evaluation of PharmacovigilanceBeijingChina
- Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health ProductsBeijingChina
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijingChina
| | - Guibo Sun
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational MedicineInstitute of Medicinal Plant DevelopmentPeking Union Medical College and Chinese Academy of Medical SciencesBeijingChina
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal MedicineMinistry of EducationBeijingChina
- Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic DisordersState Administration of Traditional Chinese MedicineBeijingChina
- NMPA Key Laboratory for Research and Evaluation of PharmacovigilanceBeijingChina
- Zhongguancun Open Laboratory of the Research and Development of Natural Medicine and Health ProductsBeijingChina
- Key Laboratory of New Drug Discovery Based on Classic Chinese Medicine PrescriptionChinese Academy of Medical SciencesBeijingChina
| |
Collapse
|
36
|
Si R, Cabrera JTO, Tsuji-Hosokawa A, Guo R, Watanabe M, Gao L, Lee YS, Moon JS, Scott BT, Wang J, Ashton AW, Rao JN, Wang JY, Yuan JXJ, Makino A. HuR/Cx40 downregulation causes coronary microvascular dysfunction in type 2 diabetes. JCI Insight 2021; 6:147982. [PMID: 34747371 PMCID: PMC8663561 DOI: 10.1172/jci.insight.147982] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 09/29/2021] [Indexed: 11/30/2022] Open
Abstract
Patients with diabetes with coronary microvascular disease (CMD) exhibit higher cardiac mortality than patients without CMD. However, the molecular mechanism by which diabetes promotes CMD is poorly understood. RNA-binding protein human antigen R (HuR) is a key regulator of mRNA stability and translation; therefore, we investigated the role of HuR in the development of CMD in mice with type 2 diabetes. Diabetic mice exhibited decreases in coronary flow velocity reserve (CFVR; a determinant of coronary microvascular function) and capillary density in the left ventricle. HuR levels in cardiac endothelial cells (CECs) were significantly lower in diabetic mice and patients with diabetes than the controls. Endothelial-specific HuR-KO mice also displayed significant reductions in CFVR and capillary density. By examining mRNA levels of 92 genes associated with endothelial function, we found that HuR, Cx40, and Nox4 levels were decreased in CECs from diabetic and HuR-KO mice compared with control mice. Cx40 expression and HuR binding to Cx40 mRNA were downregulated in CECs from diabetic mice. Cx40-KO mice exhibited decreased CFVR and capillary density, whereas endothelium-specific Cx40 overexpression increased capillary density and improved CFVR in diabetic mice. These data suggest that decreased HuR contributes to the development of CMD in diabetes through downregulation of gap junction protein Cx40 in CECs.
Collapse
Affiliation(s)
- Rui Si
- Department of Physiology, The University of Arizona (UA), Tucson, Arizona, USA.,Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Shaanxi, China
| | | | | | - Rui Guo
- Department of Physiology, The University of Arizona (UA), Tucson, Arizona, USA
| | - Makiko Watanabe
- Department of Physiology, The University of Arizona (UA), Tucson, Arizona, USA
| | - Lei Gao
- Department of Medicine, UCSD, La Jolla, California, USA
| | - Yun Sok Lee
- Department of Medicine, UCSD, La Jolla, California, USA
| | - Jae-Su Moon
- Department of Medicine, UCSD, La Jolla, California, USA
| | - Brian T Scott
- Department of Medicine, UCSD, La Jolla, California, USA
| | - Jian Wang
- Department of Physiology, The University of Arizona (UA), Tucson, Arizona, USA.,State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Anthony W Ashton
- Division of Perinatal Research, Kolling Institute of Medical Research, University of Sydney, New South Wales, Australia
| | - Jaladanki N Rao
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Jian-Ying Wang
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - Ayako Makino
- Department of Physiology, The University of Arizona (UA), Tucson, Arizona, USA.,Department of Medicine, UCSD, La Jolla, California, USA
| |
Collapse
|
37
|
Paraoxonase 2 protects against the CML mediated mitochondrial dysfunction through modulating JNK pathway in human retinal cells. Biochim Biophys Acta Gen Subj 2021; 1866:130043. [PMID: 34710487 DOI: 10.1016/j.bbagen.2021.130043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/13/2021] [Accepted: 10/21/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Paraoxonase 2 (PON2) a known anti-apoptotic protein, has not been explored against Nε-(carboxymethyl)lysine (CML), induced mitochondrial dysfunction and apoptosis in human retinal cells. Hence this present study aims to investigate the potential role of PON2 in mitigating CML-induced mitochondrial dysfunction in these cells. METHODS PON2 protein was quantified in HRECs (Human retinal endothelial cells), ARPE-19 (Retinal pigment epithelial cells) cells upon CML treatment and also in cadaveric diabetic retina vs respective controls. ROS production, mitochondrial membrane potential (MMP), mitochondrial permeability transition pore (mPTP) opening, the release of Cyt-c, Bax, Caspase-3, Fis1, Mfn1, Mfn2, mitochondrial morphology, and the signaling pathway was assessed using DCFDA, JC-1, CoCl2, immunofluorescence or western blotting analysis in both loss-of-function or gain-of-function experiments. RESULTS PON2 protein was downregulated in HREC and ARPE-19 cells upon CML treatment as well as in the diabetic retina (p = 0.035). Decrease in PON2 augments Fis1 expression resulting in fragmentation of mitochondria and enhances the ROS production, decreases MMP, facilitates mPTP opening, and induces the release of Cyt-c, which activates the pro-apoptotic pathway. Whereas PON2 overexpression similar to SP600125 (a specific JNK inhibitor) was able to decrease Fis1 (p = 0.036) and reverse the Bcl-2 and Bax ratio, and inhibit the JNK1/2 signaling pathway. CONCLUSION Our results confirm that PON2 has an anti-apoptotic role against the CML mediated mitochondrial dysfunction and inhibits apoptosis through the JNK-Fis1 axis. GENERAL SIGNIFICANCE We hypothesis that enhancing PON2 may provide a better therapeutic potential against diabetic vascular disease.
Collapse
|
38
|
Li D, Yang S, Xing Y, Pan L, Zhao R, Zhao Y, Liu L, Wu M. Novel Insights and Current Evidence for Mechanisms of Atherosclerosis: Mitochondrial Dynamics as a Potential Therapeutic Target. Front Cell Dev Biol 2021; 9:673839. [PMID: 34307357 PMCID: PMC8293691 DOI: 10.3389/fcell.2021.673839] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/16/2021] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular disease (CVD) is the main cause of death worldwide. Atherosclerosis is the underlying pathological basis of CVD. Mitochondrial homeostasis is maintained through the dynamic processes of fusion and fission. Mitochondria are involved in many cellular processes, such as steroid biosynthesis, calcium homeostasis, immune cell activation, redox signaling, apoptosis, and inflammation, among others. Under stress conditions, mitochondrial dynamics, mitochondrial cristae remodeling, and mitochondrial ROS (mitoROS) production increase, mitochondrial membrane potential (MMP) decreases, calcium homeostasis is imbalanced, and mitochondrial permeability transition pore open (mPTP) and release of mitochondrial DNA (mtDNA) are activated. mtDNA recognized by TLR9 can lead to NF-κB pathway activation and pro-inflammatory factor expression. At the same time, TLR9 can also activate NLRP3 inflammasomes and release interleukin, an event that eventually leads to tissue damage and inflammatory responses. In addition, mitochondrial dysfunction may amplify the activation of NLRP3 through the production of mitochondrial ROS, which together aggravate accumulating mitochondrial damage. In addition, mtDNA defects or gene mutation can lead to mitochondrial oxidative stress. Finally, obesity, diabetes, hypertension and aging are risk factors for the progression of CVD, which are closely related to mitochondrial dynamics. Mitochondrial dynamics may represent a new target in the treatment of atherosclerosis. Antioxidants, mitochondrial inhibitors, and various new therapies to correct mitochondrial dysfunction represent a few directions for future research on therapeutic intervention and amelioration of atherosclerosis.
Collapse
Affiliation(s)
- Dan Li
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shengjie Yang
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yanwei Xing
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Limin Pan
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ran Zhao
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yixi Zhao
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Longtao Liu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Min Wu
- Guang'an Men Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
39
|
Robert P, Nguyen PMC, Richard A, Grenier C, Chevrollier A, Munier M, Grimaud L, Proux C, Champin T, Lelièvre E, Sarzi E, Vessières E, Henni S, Prunier D, Reynier P, Lenaers G, Fassot C, Henrion D, Loufrani L. Protective role of the mitochondrial fusion protein OPA1 in hypertension. FASEB J 2021; 35:e21678. [PMID: 34133045 DOI: 10.1096/fj.202000238rrr] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/04/2021] [Accepted: 05/04/2021] [Indexed: 11/11/2022]
Abstract
Hypertension is associated with excessive reactive oxygen species (ROS) production in vascular cells. Mitochondria undergo fusion and fission, a process playing a role in mitochondrial function. OPA1 is essential for mitochondrial fusion. Loss of OPA1 is associated with ROS production and cell dysfunction. We hypothesized that mitochondria fusion could reduce oxidative stress that defect in fusion would exacerbate hypertension. Using (a) Opa1 haploinsufficiency in isolated resistance arteries from Opa1+/- mice, (b) primary vascular cells from Opa1+/- mice, and (c) RNA interference experiments with siRNA against Opa1 in vascular cells, we investigated the role of mitochondria fusion in hypertension. In hypertension, Opa1 haploinsufficiency induced altered mitochondrial cristae structure both in vascular smooth muscle and endothelial cells but did not modify protein level of long and short forms of OPA1. In addition, we demonstrated an increase of mitochondrial ROS production, associated with a decrease of superoxide dismutase 1 protein expression. We also observed an increase of apoptosis in vascular cells and a decreased VSMCs proliferation. Blood pressure, vascular contractility, as well as endothelium-dependent and -independent relaxation were similar in Opa1+/- , WT, L-NAME-treated Opa1+/- and WT mice. Nevertheless, chronic NO-synthase inhibition with L-NAME induced a greater hypertension in Opa1+/- than in WT mice without compensatory arterial wall hypertrophy. This was associated with a stronger reduction in endothelium-dependent relaxation due to excessive ROS production. Our results highlight the protective role of mitochondria fusion in the vasculature during hypertension by limiting mitochondria ROS production.
Collapse
Affiliation(s)
- Pauline Robert
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Phuc Minh Chau Nguyen
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Alexis Richard
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Céline Grenier
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Arnaud Chevrollier
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Mathilde Munier
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Linda Grimaud
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Coralyne Proux
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Tristan Champin
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Eric Lelièvre
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
| | - Emmanuelle Sarzi
- Institute for Neurosciences of Montpellier-INSERM U1051, Montpellier, France
| | - Emilie Vessières
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Samir Henni
- University Hospital (CHU) of Angers, Angers, France
| | - Delphine Prunier
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
- University Hospital (CHU) of Angers, Angers, France
| | - Pascal Reynier
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
- University Hospital (CHU) of Angers, Angers, France
| | - Guys Lenaers
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
- University Hospital (CHU) of Angers, Angers, France
| | - Céline Fassot
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| | - Daniel Henrion
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
- University Hospital (CHU) of Angers, Angers, France
| | - Laurent Loufrani
- MITOVASC Institute and CARFI Facility, University of Angers, Angers, France
- UMR CNRS 6015, Angers, France
- INSERM U1083, Angers, France
| |
Collapse
|
40
|
Ushio-Fukai M, Ash D, Nagarkoti S, Belin de Chantemèle EJ, Fulton DJR, Fukai T. Interplay Between Reactive Oxygen/Reactive Nitrogen Species and Metabolism in Vascular Biology and Disease. Antioxid Redox Signal 2021; 34:1319-1354. [PMID: 33899493 PMCID: PMC8418449 DOI: 10.1089/ars.2020.8161] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Reactive oxygen species (ROS; e.g., superoxide [O2•-] and hydrogen peroxide [H2O2]) and reactive nitrogen species (RNS; e.g., nitric oxide [NO•]) at the physiological level function as signaling molecules that mediate many biological responses, including cell proliferation, migration, differentiation, and gene expression. By contrast, excess ROS/RNS, a consequence of dysregulated redox homeostasis, is a hallmark of cardiovascular disease. Accumulating evidence suggests that both ROS and RNS regulate various metabolic pathways and enzymes. Recent studies indicate that cells have mechanisms that fine-tune ROS/RNS levels by tight regulation of metabolic pathways, such as glycolysis and oxidative phosphorylation. The ROS/RNS-mediated inhibition of glycolytic pathways promotes metabolic reprogramming away from glycolytic flux toward the oxidative pentose phosphate pathway to generate nicotinamide adenine dinucleotide phosphate (NADPH) for antioxidant defense. This review summarizes our current knowledge of the mechanisms by which ROS/RNS regulate metabolic enzymes and cellular metabolism and how cellular metabolism influences redox homeostasis and the pathogenesis of disease. A full understanding of these mechanisms will be important for the development of new therapeutic strategies to treat diseases associated with dysregulated redox homeostasis and metabolism. Antioxid. Redox Signal. 34, 1319-1354.
Collapse
Affiliation(s)
- Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Department of Medicine (Cardiology) and Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Dipankar Ash
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Department of Medicine (Cardiology) and Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Sheela Nagarkoti
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Department of Medicine (Cardiology) and Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Eric J Belin de Chantemèle
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Department of Medicine (Cardiology) and Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - David J R Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, Georgia, USA.,Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia, USA
| |
Collapse
|
41
|
Xu C, Xu W, Yang Z, Li S, Wang Y, Hua J. A turn-on mitochondria-targeted near-infrared fluorescent probe with a large Stokes shift for detecting and imaging endogenous superoxide anion in cells. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113304] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
42
|
Mitochondrial dynamics and reactive oxygen species initiate thrombopoiesis from mature megakaryocytes. Blood Adv 2021; 5:1706-1718. [PMID: 33720340 DOI: 10.1182/bloodadvances.2020002847] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/20/2021] [Indexed: 02/07/2023] Open
Abstract
Blood platelets are essential for controlling hemostasis. They are released by megakaryocytes (MKs) located in the bone marrow, upon extension of cytoplasmic protrusions into the lumen of bone marrow sinusoids. Their number increases in postpulmonary capillaries, suggesting a role for oxygen gradient in thrombopoiesis (ie, platelet biogenesis). In this study, we show that initiation of thrombopoiesis from human mature MKs was enhanced under hyperoxia or during pro-oxidant treatments, whereas antioxidants dampened it. Quenching mitochondrial reactive oxygen species (mtROS) with MitoTEMPO decreased thrombopoiesis, whereas genetically enhancing mtROS by deacetylation-null sirtuin-3 expression increased it. Blocking cytosolic ROS production by NOX inhibitors had no impact. Classification according to the cell roundness index delineated 3 stages of thrombopoiesis in mature MKs. Early-stage round MKs exhibited the highest index, which correlated with low mtROS levels, a mitochondrial tubular network, and the mitochondrial recruitment of the fission activator Drp1. Intermediate MKs at the onset of thrombopoiesis showed high mtROS levels and small, well-delineated mitochondria. Terminal MKs showed the lowest roundness index and long proplatelet extensions. Inhibiting Drp1-dependent mitochondrial fission of mature MKs by Mdivi-1 favored a tubular mitochondrial network and lowered both mtROS levels and intermediate MKs proportion, whereas enhancing Drp1 activity genetically had opposite effects. Reciprocally, quenching mtROS limited mitochondrial fission in round MKs. These data demonstrate a functional coupling between ROS and mitochondrial fission in MKs, which is crucial for the onset of thrombopoiesis. They provide new molecular cues that control initiation of platelet biogenesis and may help elucidate some unexplained thrombocytopenia.
Collapse
|
43
|
Chang X, Lochner A, Wang HH, Wang S, Zhu H, Ren J, Zhou H. Coronary microvascular injury in myocardial infarction: perception and knowledge for mitochondrial quality control. Am J Cancer Res 2021; 11:6766-6785. [PMID: 34093852 PMCID: PMC8171103 DOI: 10.7150/thno.60143] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 04/14/2021] [Indexed: 12/11/2022] Open
Abstract
Endothelial cells (ECs) constitute the innermost layer in all blood vessels to maintain the structural integrity and microcirculation function for coronary microvasculature. Impaired endothelial function is demonstrated in various cardiovascular diseases including myocardial infarction (MI), which is featured by reduced myocardial blood flow as a result of epicardial coronary obstruction, thrombogenesis, and inflammation. In this context, understanding the cellular and molecular mechanisms governing the function of coronary ECs is essential for the early diagnosis and optimal treatment of MI. Although ECs contain relatively fewer mitochondria compared with cardiomyocytes, they function as key sensors of environmental and cellular stress, in the regulation of EC viability, structural integrity and function. Mitochondrial quality control (MQC) machineries respond to a broad array of stress stimuli to regulate fission, fusion, mitophagy and biogenesis in mitochondria. Impaired MQC is a cardinal feature of EC injury and dysfunction. Hence, medications modulating MQC mechanisms are considered as promising novel therapeutic options in MI. Here in this review, we provide updated insights into the key role of MQC mechanisms in coronary ECs and microvascular dysfunction in MI. We also discussed the option of MQC as a novel therapeutic target to delay, reverse or repair coronary microvascular damage in MI. Contemporary available MQC-targeted therapies with potential clinical benefits to alleviate coronary microvascular injury during MI are also summarized.
Collapse
|
44
|
Drp1-dependent mitochondrial fission in cardiovascular disease. Acta Pharmacol Sin 2021; 42:655-664. [PMID: 32913266 DOI: 10.1038/s41401-020-00518-y] [Citation(s) in RCA: 149] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/19/2020] [Indexed: 12/21/2022] Open
Abstract
Mitochondria are highly dynamic organelles undergoing cycles of fusion and fission to modulate their morphology, distribution, and function, which are referred as 'mitochondrial dynamics'. Dynamin-related protein 1 (Drp1) is known as the major pro-fission protein whose activity is tightly regulated to clear the damaged mitochondria via mitophagy, ensuring a strict control over the intricate process of cellular and organ dynamics in heart. Various posttranslational modifications (PTMs) of Drp1 have been identified including phosphorylation, SUMOylation, palmitoylation, ubiquitination, S-nitrosylation, and O-GlcNAcylation, which implicate a role in the regulation of mitochondrial dynamics. An intact mitochondrial homeostasis is critical for heart to fuel contractile function and cardiomyocyte metabolism, while defects in mitochondrial dynamics constitute an essential part of the pathophysiology underlying various cardiovascular diseases (CVDs). In this review, we summarize current knowledge on the critical role of Drp1 in the pathogenesis of CVDs including endothelial dysfunction, smooth muscle remodeling, cardiac hypertrophy, pulmonary arterial hypertension, myocardial ischemia-reperfusion, and myocardial infarction. We also highlight how the targeting of Drp1 could potentially contribute to CVDs treatments.
Collapse
|
45
|
Mitochondrial metabolism and calcium homeostasis in the development of NAFLD leading to hepatocellular carcinoma. Mitochondrion 2021; 58:24-37. [PMID: 33581332 DOI: 10.1016/j.mito.2021.01.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 01/21/2021] [Accepted: 01/25/2021] [Indexed: 02/06/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a metabolic syndrome characterized by excessive accumulation of hepatic lipid droplets. The disease progresses with steatosis as the premise for hepatocytic damage and tissue scarring, often culminating in hepatocellular carcinoma (HCC). Perturbations in mitochondrial metabolism and energetics were found to be associated with, and often instrumental in various stages of this progression. Functional impairment of the mitochondria affects all aspects of cellular functioning and a particularly important one is calcium signalling. Changes in mitochondrial calcium specifically in hepatocytes of a fatty liver, is reflected by alterations in calcium signalling as well as calcium transporter activities. This deranged Ca2+ homeostasis aids in even more uptake of lipids into the mitochondria and a shift in equilibrium, both metabolically as well as in terms of energy production, leading to completely altered cellular states. These alterations have been reviewed as a perspective to understand the disease progression through NAFLD leading to HCC.
Collapse
|
46
|
IL-6 Reduces Mitochondrial Replication, and IL-6 Receptors Reduce Chronic Inflammation in NAFLD and Type 2 Diabetes. Int J Mol Sci 2021; 22:ijms22041774. [PMID: 33579000 PMCID: PMC7916777 DOI: 10.3390/ijms22041774] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/15/2022] Open
Abstract
Interleukin (IL)-6 family cytokines act through a receptor complex with gp130 subunits. IL-6 is a pleiotropic cytokine that regulates inflammation and liver regeneration. Mitochondria are the first to respond to stress and adapt their dynamics in conditions of damage. In this regard, the study aimed to investigate the role of the IL-6 cytokine family (sIL-6Ra, gp130/sIL-6Rb, and IL-11) in the regulation of mitochondrial dynamics in the liver in obese patients and to assess the contribution of these cytokines to the pathogenesis of type 2 diabetes mellitus (T2DM). We studied 134 obese patients with and without T2DM and 41 healthy donors. We found that increasing the concentration of sIL-6Ra and gp130/sIL-6Rb protected against carbohydrate disorders in obese patients and prevented non-alcoholic fatty liver disease (NAFLD) progression in obese patients. An increase in plasma IL-6 levels is associated with decreased, mitochondrial transcription factor A (TFAM) protein production in liver biopsies in obese patients with and without T2DM. Replication, transcription, and division processes in liver biopsy were reduced in patients with T2DM. Inflammatory processes stimulate liver cell apoptosis in obese patients with T2DM. The increase in IL-11 levels is associated with decreased pro-apoptotic Bcl-2-associated X protein (BAX) protein production in obese patients with and without T2DM.
Collapse
|
47
|
Si R, Zhang Q, Tsuji-Hosokawa A, Watanabe M, Willson C, Lai N, Wang J, Dai A, Scott BT, Dillmann WH, Yuan JXJ, Makino A. Overexpression of p53 due to excess protein O-GlcNAcylation is associated with coronary microvascular disease in type 2 diabetes. Cardiovasc Res 2021; 116:1186-1198. [PMID: 31504245 DOI: 10.1093/cvr/cvz216] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/27/2019] [Accepted: 08/20/2019] [Indexed: 12/12/2022] Open
Abstract
AIMS We previously reported that increased protein O-GlcNAcylation in diabetic mice led to vascular rarefaction in the heart. In this study, we aimed to investigate whether and how coronary endothelial cell (EC) apoptosis is enhanced by protein O-GlcNAcylation and thus induces coronary microvascular disease (CMD) and subsequent cardiac dysfunction in diabetes. We hypothesize that excessive protein O-GlcNAcylation increases p53 that leads to CMD and reduced cardiac contractility. METHODS AND RESULTS We conducted in vivo functional experiments in control mice, TALLYHO/Jng (TH) mice, a polygenic type 2 diabetic (T2D) model, and EC-specific O-GlcNAcase (OGA, an enzyme that catalyzes the removal of O-GlcNAc from proteins)-overexpressing TH mice, as well as in vitro experiments in isolated ECs from these mice. TH mice exhibited a significant increase in coronary EC apoptosis and reduction of coronary flow velocity reserve (CFVR), an assessment of coronary microvascular function, in comparison to wild-type mice. The decreased CFVR, due at least partially to EC apoptosis, was associated with decreased cardiac contractility in TH mice. Western blot experiments showed that p53 protein level was significantly higher in coronary ECs from TH mice and T2D patients than in control ECs. High glucose treatment also increased p53 protein level in control ECs. Furthermore, overexpression of OGA decreased protein O-GlcNAcylation and down-regulated p53 in coronary ECs, and conferred a protective effect on cardiac function in TH mice. Inhibition of p53 with pifithrin-α attenuated coronary EC apoptosis and restored CFVR and cardiac contractility in TH mice. CONCLUSIONS The data from this study indicate that inhibition of p53 or down-regulation of p53 by OGA overexpression attenuates coronary EC apoptosis and improves CFVR and cardiac function in diabetes. Lowering coronary endothelial p53 levels via OGA overexpression could be a potential therapeutic approach for CMD in diabetes.
Collapse
Affiliation(s)
- Rui Si
- Department of Physiology, The University of Arizona, 1501 N. Campbell Ave., Tucson, AZ 85724, USA.,Department of Cardiology, Xijing Hospital, Fourth Military Medical University, 127 Changle West Rd., Shaanxi 710032, China
| | - Qian Zhang
- Department of Physiology, The University of Arizona, 1501 N. Campbell Ave., Tucson, AZ 85724, USA.,Department of Medicine, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA.,State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, 195 W Dongfeng Rd., Guangzhou 510182, China
| | - Atsumi Tsuji-Hosokawa
- Department of Physiology, The University of Arizona, 1501 N. Campbell Ave., Tucson, AZ 85724, USA
| | - Makiko Watanabe
- Department of Physiology, The University of Arizona, 1501 N. Campbell Ave., Tucson, AZ 85724, USA
| | - Conor Willson
- Department of Physiology, The University of Arizona, 1501 N. Campbell Ave., Tucson, AZ 85724, USA
| | - Ning Lai
- Department of Medicine, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA.,State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, 195 W Dongfeng Rd., Guangzhou 510182, China
| | - Jian Wang
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, 195 W Dongfeng Rd., Guangzhou 510182, China.,Department of Medicine, The University of Arizona, 1501 N. Campbell Ave. Tucson, AZ 85724, USA
| | - Anzhi Dai
- Department of Medicine, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Brian T Scott
- Department of Medicine, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Wolfgang H Dillmann
- Department of Medicine, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA
| | - Jason X-J Yuan
- Department of Medicine, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA.,Department of Medicine, The University of Arizona, 1501 N. Campbell Ave. Tucson, AZ 85724, USA
| | - Ayako Makino
- Department of Physiology, The University of Arizona, 1501 N. Campbell Ave., Tucson, AZ 85724, USA.,Department of Medicine, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA.,Department of Medicine, The University of Arizona, 1501 N. Campbell Ave. Tucson, AZ 85724, USA
| |
Collapse
|
48
|
Coronary Endothelium No-Reflow Injury Is Associated with ROS-Modified Mitochondrial Fission through the JNK-Drp1 Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6699516. [PMID: 33613824 PMCID: PMC7878075 DOI: 10.1155/2021/6699516] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/15/2021] [Accepted: 01/23/2021] [Indexed: 12/11/2022]
Abstract
Coronary artery no-reflow is a complex problem in the area of reperfusion therapy, and the molecular mechanisms underlying coronary artery no-reflow injury have not been fully elucidated. In the present study, we explored whether oxidative stress caused damage to coronary endothelial cells by inducing mitochondrial fission and activating the JNK pathway. The hypoxia/reoxygenation (H/R) model was induced in vitro to mimic coronary endothelial no-reflow injury, and mitochondrial fission, mitochondrial function, and endothelial cell viability were analyzed using western blotting, quantitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA), and immunofluorescence. Our data indicated that reactive oxygen species (ROS) were significantly induced upon H/R injury, and this was followed by decreased endothelial cell viability. Mitochondrial fission was induced and mitochondrial bioenergetics were impaired in cardiac endothelial cells after H/R injury. Neutralization of ROS reduced mitochondrial fission and protected mitochondrial function against H/R injury. Our results also demonstrated that ROS stimulated mitochondrial fission via JNK-mediated Drp1 phosphorylation. These findings indicate that the ROS-JNK-Drp1 signaling pathway may be one of the molecular mechanisms underlying endothelial cell damage during H/R injury. Novel treatments for coronary no-reflow injury may involve targeting mitochondrial fission and the JNK-Drp1 signaling pathway.
Collapse
|
49
|
Bai J, Liu C, Zhu P, Li Y. Novel Insights Into Molecular Mechanism of Mitochondria in Diabetic Cardiomyopathy. Front Physiol 2021; 11:609157. [PMID: 33536936 PMCID: PMC7849834 DOI: 10.3389/fphys.2020.609157] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/21/2020] [Indexed: 12/11/2022] Open
Abstract
Cardiovascular complication is one of the significant causes of death in diabetic mellitus (DM) in which diabetic cardiomyopathy, independent of hypertension, cardiac valvular disease, and coronary atherosclerosis, occupies an important position. Although the detailed pathogenesis of diabetic cardiomyopathy remains unclear currently, mitochondrial morphological abnormality and dysfunction were observed in diabetic cardiomyopathy animal models according to much research, suggesting that mitochondrial structural and functional impairment played an integral role in the formation of diabetic cardiomyopathy. Thus, we have summarized the effect of mitochondria on the process of diabetic cardiomyopathy, including abnormal mitochondrial morphology, mitochondrial energy metabolism disorder, enhanced mitochondrial oxidative stress, mitochondrial unbalanced calcium homeostasis, and mitochondrial autophagy. Based on the above mechanisms and the related evidence, more therapeutic strategies targeting mitochondria in diabetic cardiomyopathy have been and will be proposed to delay the progression of the disease.
Collapse
Affiliation(s)
- Jing Bai
- Medical School of Chinese PLA, Beijing, China.,Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Chuanbin Liu
- Medical School of Chinese PLA, Beijing, China.,Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Pingjun Zhu
- Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yang Li
- Medical School of Chinese PLA, Beijing, China.,Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
50
|
Ihenacho UK, Meacham KA, Harwig MC, Widlansky ME, Hill RB. Mitochondrial Fission Protein 1: Emerging Roles in Organellar Form and Function in Health and Disease. Front Endocrinol (Lausanne) 2021; 12:660095. [PMID: 33841340 PMCID: PMC8027123 DOI: 10.3389/fendo.2021.660095] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/05/2021] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial fission protein 1 (Fis1) was identified in yeast as being essential for mitochondrial division or fission and subsequently determined to mediate human mitochondrial and peroxisomal fission. Yet, its exact functions in humans, especially in regard to mitochondrial fission, remains an enigma as genetic deletion of Fis1 elongates mitochondria in some cell types, but not others. Fis1 has also been identified as an important component of apoptotic and mitophagic pathways suggesting the protein may have multiple, essential roles. This review presents current perspectives on the emerging functions of Fis1 and their implications in human health and diseases, with an emphasis on Fis1's role in both endocrine and neurological disorders.
Collapse
Affiliation(s)
| | - Kelsey A. Meacham
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Megan Cleland Harwig
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Michael E. Widlansky
- Department of Medicine, Division of Cardiovascular Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - R. Blake Hill
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States
- *Correspondence: R. Blake Hill,
| |
Collapse
|