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Nogueira C, Pereira C, Silva L, Laranjeira M, Lopes A, Neiva R, Rodrigues E, Campos T, Martins E, Bandeira A, Coelho M, Magalhães M, Damásio J, Gaspar A, Janeiro P, Gomes AL, Ferreira AC, Jacinto S, Vieira JP, Diogo L, Santos H, Mendonça C, Vilarinho L. The genetic landscape of mitochondrial diseases in the next-generation sequencing era: a Portuguese cohort study. Front Cell Dev Biol 2024; 12:1331351. [PMID: 38465286 PMCID: PMC10920333 DOI: 10.3389/fcell.2024.1331351] [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: 10/31/2023] [Accepted: 01/30/2024] [Indexed: 03/12/2024] Open
Abstract
Introduction: Rare disorders that are genetically and clinically heterogeneous, such as mitochondrial diseases (MDs), have a challenging diagnosis. Nuclear genes codify most proteins involved in mitochondrial biogenesis, despite all mitochondria having their own DNA. The development of next-generation sequencing (NGS) technologies has revolutionized the understanding of many genes involved in the pathogenesis of MDs. In this new genetic era, using the NGS approach, we aimed to identify the genetic etiology for a suspected MD in a cohort of 450 Portuguese patients. Methods: We examined 450 patients using a combined NGS strategy, starting with the analysis of a targeted mitochondrial panel of 213 nuclear genes, and then proceeding to analyze the whole mitochondrial DNA. Results and Discussion: In this study, we identified disease-related variants in 134 (30%) analyzed patients, 88 with nuclear DNA (nDNA) and 46 with mitochondrial DNA (mtDNA) variants, most of them being pediatric patients (66%), of which 77% were identified in nDNA and 23% in mtDNA. The molecular analysis of this cohort revealed 72 already described pathogenic and 20 novel, probably pathogenic, variants, as well as 62 variants of unknown significance. For this cohort of patients with suspected MDs, the use of a customized gene panel provided a molecular diagnosis in a timely and cost-effective manner. Patients who cannot be diagnosed after this initial approach will be further selected for whole-exome sequencing. Conclusion: As a national laboratory for the study and research of MDs, we demonstrated the power of NGS to achieve a molecular etiology, expanding the mutational spectrum and proposing accurate genetic counseling in this group of heterogeneous diseases without therapeutic options.
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Affiliation(s)
- C. Nogueira
- Research & Development Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
- Newborn Screening, Metabolism & Genetics Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - C. Pereira
- Newborn Screening, Metabolism & Genetics Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - L. Silva
- Research & Development Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
- Newborn Screening, Metabolism & Genetics Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - Mateus Laranjeira
- Research & Development Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - A. Lopes
- Newborn Screening, Metabolism & Genetics Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - R. Neiva
- Newborn Screening, Metabolism & Genetics Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
| | - E. Rodrigues
- Inherited Metabolic Diseases Reference Centre, São João Hospital University Centre, Porto, Portugal
| | - T. Campos
- Inherited Metabolic Diseases Reference Centre, São João Hospital University Centre, Porto, Portugal
| | - E. Martins
- Inherited Metabolic Diseases Reference Centre, Santo António Hospital University Centre, Porto, Portugal
| | - A. Bandeira
- Inherited Metabolic Diseases Reference Centre, Santo António Hospital University Centre, Porto, Portugal
| | - M. Coelho
- Inherited Metabolic Diseases Reference Centre, Santo António Hospital University Centre, Porto, Portugal
| | - M. Magalhães
- Neurology Department, Santo António Hospital University Centre, Porto, Portugal
| | - J. Damásio
- Neurology Department, Santo António Hospital University Centre, Porto, Portugal
| | - A. Gaspar
- Inherited Metabolic Diseases Reference Centre, Lisboa Norte Hospital University Centre, Lisboa, Portugal
| | - P Janeiro
- Inherited Metabolic Diseases Reference Centre, Lisboa Norte Hospital University Centre, Lisboa, Portugal
| | - A. Levy Gomes
- Neurology Department, Lisboa Norte Hospital University Centre, Lisboa, Portugal
| | - A. C. Ferreira
- Inherited Metabolic Diseases Reference Centre, Lisboa Central Hospital Centre, Lisboa, Portugal
| | - S. Jacinto
- Inherited Metabolic Diseases Reference Centre, Lisboa Central Hospital Centre, Lisboa, Portugal
| | - J. P. Vieira
- Inherited Metabolic Diseases Reference Centre, Lisboa Central Hospital Centre, Lisboa, Portugal
| | - L. Diogo
- Inherited Metabolic Diseases Reference Centre, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - H. Santos
- Inherited Metabolic Diseases Reference Centre, Vila Nova de Gaia Hospital Centre, Vila Nova de Gaia, Portugal
| | - C. Mendonça
- Pediatric Department, Faro Hospital and University Centre, Faro, Portugal
| | - L. Vilarinho
- Research & Development Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
- Newborn Screening, Metabolism & Genetics Unit, Human Genetics Department, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
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Rocca C, Soda T, De Francesco EM, Fiorillo M, Moccia F, Viglietto G, Angelone T, Amodio N. Mitochondrial dysfunction at the crossroad of cardiovascular diseases and cancer. J Transl Med 2023; 21:635. [PMID: 37726810 PMCID: PMC10507834 DOI: 10.1186/s12967-023-04498-5] [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: 07/29/2023] [Accepted: 09/01/2023] [Indexed: 09/21/2023] Open
Abstract
A large body of evidence indicates the existence of a complex pathophysiological relationship between cardiovascular diseases and cancer. Mitochondria are crucial organelles whose optimal activity is determined by quality control systems, which regulate critical cellular events, ranging from intermediary metabolism and calcium signaling to mitochondrial dynamics, cell death and mitophagy. Emerging data indicate that impaired mitochondrial quality control drives myocardial dysfunction occurring in several heart diseases, including cardiac hypertrophy, myocardial infarction, ischaemia/reperfusion damage and metabolic cardiomyopathies. On the other hand, diverse human cancers also dysregulate mitochondrial quality control to promote their initiation and progression, suggesting that modulating mitochondrial homeostasis may represent a promising therapeutic strategy both in cardiology and oncology. In this review, first we briefly introduce the physiological mechanisms underlying the mitochondrial quality control system, and then summarize the current understanding about the impact of dysregulated mitochondrial functions in cardiovascular diseases and cancer. We also discuss key mitochondrial mechanisms underlying the increased risk of cardiovascular complications secondary to the main current anticancer strategies, highlighting the potential of strategies aimed at alleviating mitochondrial impairment-related cardiac dysfunction and tumorigenesis. It is hoped that this summary can provide novel insights into precision medicine approaches to reduce cardiovascular and cancer morbidities and mortalities.
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Affiliation(s)
- Carmine Rocca
- Cellular and Molecular Cardiovascular Pathophysiology Laboratory, Department of Biology, E and E.S. (DiBEST), University of Calabria, Arcavacata di Rende, 87036, Cosenza, Italy
| | - Teresa Soda
- Department of Health Science, University Magna Graecia of Catanzaro, 88100, Catanzaro, Italy
| | - Ernestina Marianna De Francesco
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, 95122, Catania, Italy
| | - Marco Fiorillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Francesco Moccia
- Laboratory of General Physiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100, Pavia, Italy
| | - Giuseppe Viglietto
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100, Catanzaro, Italy
| | - Tommaso Angelone
- Cellular and Molecular Cardiovascular Pathophysiology Laboratory, Department of Biology, E and E.S. (DiBEST), University of Calabria, Arcavacata di Rende, 87036, Cosenza, Italy.
- National Institute of Cardiovascular Research (I.N.R.C.), 40126, Bologna, Italy.
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100, Catanzaro, Italy.
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3
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Poznyak AV, Sukhorukov VN, Guo S, Postnov AY, Orekhov AN. Sex Differences Define the Vulnerability to Atherosclerosis. CLINICAL MEDICINE INSIGHTS-CARDIOLOGY 2023; 17:11795468231189044. [PMID: 37529084 PMCID: PMC10387777 DOI: 10.1177/11795468231189044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 07/03/2023] [Indexed: 08/03/2023]
Abstract
For several decades, atherosclerosis has attracted the attention of researchers around the world. Even being a major cause of serious cardiovascular disease and events, atherosclerosis is still not fully understood. Despite the fact that the main players in the pathogenesis of atherosclerosis are well known, many mechanisms of their implementation and interactions remain unknown. The same can be said about the risk factors for atherosclerosis. Many of them are known, but exactly how they work remains to be seen. The main objective of this review is to summarize the latest data on sex as a biological variable in atherosclerosis in humans and animals; to determine what we do not still know about how sex affects the process of growth and complications of atherosclerosis. In this review, we summarized data on sex differences at 3 atherosclerotic aspects: inflammation, vascular remodeling, and plaque morphology. With all overviewed data, we came to the conclusion on the atheroprotective role of female sex.
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Affiliation(s)
| | - Vasiliy N Sukhorukov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Shuzhen Guo
- Diabetes Research Center, School of Traditional Chinese Medicine, Beijing University of Chinese, Beijing, China
| | - Anton Y Postnov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Federal State Budgetary Scientific Institution «Petrovsky National Research Centre of Surgery» (FSBSI “Petrovsky NRCS”), Moscow, Russia
| | - Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia
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4
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Poznyak AV, Sukhorukov VN, Eremin II, Nadelyaeva II, Orekhov AN. Diagnostics of atherosclerosis: Overview of the existing methods. Front Cardiovasc Med 2023; 10:1134097. [PMID: 37229223 PMCID: PMC10203409 DOI: 10.3389/fcvm.2023.1134097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 04/11/2023] [Indexed: 05/27/2023] Open
Abstract
Atherosclerosis was and remains an extremely common and serious health problem. Since the elderly are most at risk of cardiovascular risk, and the average life expectancy is increasing, the spread of atherosclerosis and its consequences increases as well. One of the features of atherosclerosis is its asymptomaticity. This factor makes it difficult to make a timely diagnosis. This entails the lack of timely treatment and even prevention. To date, in the arsenal of physicians, there is only a limited set of methods to suspect and fully diagnose atherosclerosis. In this review, we have tried to briefly describe the most common and effective methods for diagnosing atherosclerosis.
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5
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Liu Y, Huang Y, Xu C, An P, Luo Y, Jiao L, Luo J, Li Y. Mitochondrial Dysfunction and Therapeutic Perspectives in Cardiovascular Diseases. Int J Mol Sci 2022; 23:16053. [PMID: 36555691 PMCID: PMC9788331 DOI: 10.3390/ijms232416053] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/21/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
High mortality rates due to cardiovascular diseases (CVDs) have attracted worldwide attention. It has been reported that mitochondrial dysfunction is one of the most important mechanisms affecting the pathogenesis of CVDs. Mitochondrial DNA (mtDNA) mutations may result in impaired oxidative phosphorylation (OXPHOS), abnormal respiratory chains, and ATP production. In dysfunctional mitochondria, the electron transport chain (ETC) is uncoupled and the energy supply is reduced, while reactive oxygen species (ROS) production is increased. Here, we discussed and analyzed the relationship between mtDNA mutations, impaired mitophagy, decreased OXPHOS, elevated ROS, and CVDs from the perspective of mitochondrial dysfunction. Furthermore, we explored current potential therapeutic strategies for CVDs by eliminating mtDNA mutations (e.g., mtDNA editing and mitochondrial replacement), enhancing mitophagy, improving OXPHOS capacity (e.g., supplement with NAD+, nicotinamide riboside (NR), nicotinamide mononucleotide (NMN), and nano-drug delivery), and reducing ROS (e.g., supplement with Coenzyme Q10 and other antioxidants), and dissected their respective advantages and limitations. In fact, some therapeutic strategies are still a long way from achieving safe and effective clinical treatment. Although establishing effective and safe therapeutic strategies for CVDs remains challenging, starting from a mitochondrial perspective holds bright prospects.
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Affiliation(s)
- Yu Liu
- China Astronaut Research and Training Center, Beijing 100094, China
| | - Yuejia Huang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Chong Xu
- China Astronaut Research and Training Center, Beijing 100094, China
| | - Peng An
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Yongting Luo
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Lei Jiao
- China Astronaut Research and Training Center, Beijing 100094, China
| | - Junjie Luo
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Yongzhi Li
- China Astronaut Research and Training Center, Beijing 100094, China
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6
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From Diabetes to Atherosclerosis: Potential of Metformin for Management of Cardiovascular Disease. Int J Mol Sci 2022; 23:ijms23179738. [PMID: 36077136 PMCID: PMC9456496 DOI: 10.3390/ijms23179738] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Atherosclerosis is a common cause of cardiovascular disease, which, in turn, is often fatal. Today, we know a lot about the pathogenesis of atherosclerosis. However, the main knowledge is that the disease is extremely complicated. The development of atherosclerosis is associated with more than one molecular mechanism, each making a significant contribution. These mechanisms include endothelial dysfunction, inflammation, mitochondrial dysfunction, oxidative stress, and lipid metabolism disorders. This complexity inevitably leads to difficulties in treatment and prevention. One of the possible therapeutic options for atherosclerosis and its consequences may be metformin, which has already proven itself in the treatment of diabetes. Both diabetes and atherosclerosis are complex metabolic diseases, the pathogenesis of which involves many different mechanisms, including those common to both diseases. This makes metformin a suitable candidate for investigating its efficacy in cardiovascular disease. In this review, we highlight aspects such as the mechanisms of action and targets of metformin, in addition to summarizing the available data from clinical trials on the effective reduction of cardiovascular risks.
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7
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Poznyak AV, Sadykhov NK, Kartuesov AG, Borisov EE, Melnichenko AA, Grechko AV, Orekhov AN. Hypertension as a risk factor for atherosclerosis: Cardiovascular risk assessment. Front Cardiovasc Med 2022; 9:959285. [PMID: 36072873 PMCID: PMC9441708 DOI: 10.3389/fcvm.2022.959285] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/18/2022] [Indexed: 11/29/2022] Open
Abstract
Atherosclerosis is a predecessor of numerous cardiovascular diseases (CVD), which often lead to morbidity and mortality. Despite the knowledge of the pathogenesis of atherosclerosis, an essential gap in our understanding is the exact trigger mechanism. A wide range of risk factors have been discovered; however, a majority of them are too general to clarify the launching mechanism of atherogenesis. Some risk factors are permanent (age, gender, genetic heritage) and others can be modified [tobacco smoking, physical inactivity, poor nutrition, high blood pressure, type 2 diabetes (T2D), dyslipidemia, and obesity]. All of them have to be taken into account. In the scope of this review, our attention is focused on hypertension, which is considered the most widespread among all modifiable risk factors for atherosclerosis development. Moreover, high blood pressure is the most investigated risk factor. The purpose of this review is to summarize the data on hypertension as a risk factor for atherosclerosis development and the risk assessment.
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Affiliation(s)
- Anastasia V. Poznyak
- Institute for Atherosclerosis Research, Moscow, Russia
- *Correspondence: Anastasia V. Poznyak,
| | | | - Andrey G. Kartuesov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia
| | | | - Alexandra A. Melnichenko
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Andrey V. Grechko
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, Moscow, Russia
| | - Alexander N. Orekhov
- Institute for Atherosclerosis Research, Moscow, Russia
- Petrovsky National Research Centre of Surgery, Moscow, Russia
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia
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8
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Dabravolski SA, Sadykhov NK, Kartuesov AG, Borisov EE, Sukhorukov VN, Orekhov AN. The Role of Mitochondrial Abnormalities in Diabetic Cardiomyopathy. Int J Mol Sci 2022; 23:ijms23147863. [PMID: 35887211 PMCID: PMC9321738 DOI: 10.3390/ijms23147863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 02/06/2023] Open
Abstract
Diabetic cardiomyopathy (DCM) is defined as the presence in diabetic patients of abnormal cardiac structure and performance (such as left ventricular hypertrophy, fibrosis, and arrhythmia) in the absence of other cardiac risk factors (such as hypertension or coronary artery disease). Although the pathogenesis of DCM remains unclear currently, mitochondrial structural and functional dysfunctions are recognised as a central player in the DCM development. In this review, we focus on the role of mitochondrial dynamics, biogenesis and mitophagy, Ca2+ metabolism and bioenergetics in the DCM development and progression. Based on the crucial role of mitochondria in DCM, application of mitochondria-targeting therapies could be effective strategies to slow down the progression of the disease.
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Affiliation(s)
- Siarhei A. Dabravolski
- Department of Clinical Diagnostics, Vitebsk State Academy of Veterinary Medicine [UO VGAVM], 7/11 Dovatora Str., 210026 Vitebsk, Belarus
- Correspondence:
| | - Nikolay K. Sadykhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (N.K.S.); (A.G.K.)
| | - Andrey G. Kartuesov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (N.K.S.); (A.G.K.)
| | - Evgeny E. Borisov
- Petrovsky National Research Centre of Surgery, 2, Abrikosovsky Lane, 119991 Moscow, Russia; (E.E.B.); (V.N.S.)
| | - Vasily N. Sukhorukov
- Petrovsky National Research Centre of Surgery, 2, Abrikosovsky Lane, 119991 Moscow, Russia; (E.E.B.); (V.N.S.)
- Institute for Atherosclerosis Research, Osennyaya 4-1-207, 121609 Moscow, Russia;
| | - Alexander N. Orekhov
- Institute for Atherosclerosis Research, Osennyaya 4-1-207, 121609 Moscow, Russia;
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9
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Blagov AV, Grechko AV, Nikiforov NG, Zhuravlev AD, Sadykhov NK, Orekhov AN. Effects of Metabolic Disorders in Immune Cells and Synoviocytes on the Development of Rheumatoid Arthritis. Metabolites 2022; 12:metabo12070634. [PMID: 35888759 PMCID: PMC9324614 DOI: 10.3390/metabo12070634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/30/2022] [Accepted: 07/07/2022] [Indexed: 02/05/2023] Open
Abstract
Rheumatoid arthritis (RA) is a progressive autoimmune disease that affects the joints. It has been proven that, with the development of RA, there are changes in the metabolism of cells located in the focus of inflammation. In this article, we describe the connection between metabolism and inflammation in the context of rheumatoid arthritis. We consider in detail the changes in metabolic processes and their subsequent immunomodulatory effects. In particular, we consider how changes in mitochondrial functioning lead to the modulation of metabolism in rheumatoid arthritis. We also describe the main features of the metabolism in cells present in the synovial membrane during inflammation, and we discuss possible targets for the therapy of rheumatoid arthritis.
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Affiliation(s)
- Alexander V. Blagov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
- Correspondence: (A.V.B.); (A.N.O.)
| | - Andrey V. Grechko
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 14–3 Solyanka Street, 109240 Moscow, Russia;
| | - Nikita G. Nikiforov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
| | - Alexander D. Zhuravlev
- Petrovsky National Research Centre of Surgery, AP Avtsyn Institute of Human Morphology, 117418 Moscow, Russia;
| | - Nikolay K. Sadykhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
- Correspondence: (A.V.B.); (A.N.O.)
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Blagov AV, Grechko AV, Nikiforov NG, Borisov EE, Sadykhov NK, Orekhov AN. Role of Impaired Mitochondrial Dynamics Processes in the Pathogenesis of Alzheimer’s Disease. Int J Mol Sci 2022; 23:ijms23136954. [PMID: 35805958 PMCID: PMC9266759 DOI: 10.3390/ijms23136954] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 02/06/2023] Open
Abstract
Mitochondrial dysfunction is now recognized as a contributing factor to neurodegenerative diseases, including Alzheimer’s disease (AD). Mitochondria are signaling organelles with a variety of functions ranging from energy production to the regulation of cellular metabolism, energy homeostasis, and response to stress. The successful functioning of these complex processes is critically dependent on the accuracy of mitochondrial dynamics, which includes the ability of mitochondria to change shape and position in the cell, which is necessary to maintain proper function and quality control, especially in polarized cells such as neurons. There has been much evidence to suggest that the disruption of mitochondrial dynamics may play a critical role in the pathogenesis of AD. This review highlights aspects of altered mitochondrial dynamics in AD that may contribute to the etiology of this debilitating condition. We also discuss therapeutic strategies to improve mitochondrial dynamics and function that may provide an alternative treatment approach.
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Affiliation(s)
- Alexander V. Blagov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
- Correspondence: (A.V.B.); (A.N.O.)
| | - Andrey V. Grechko
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, 14-3 Solyanka Street, 109240 Moscow, Russia;
| | - Nikita G. Nikiforov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
| | - Evgeny E. Borisov
- Petrovsky National Research Centre of Surgery, AP Avtsyn Institute of Human Morphology, 117418 Moscow, Russia;
| | - Nikolay K. Sadykhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.G.N.); (N.K.S.)
- Correspondence: (A.V.B.); (A.N.O.)
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Poznyak AV, Sadykhov NK, Kartuesov AG, Borisov EE, Sukhorukov VN, Orekhov AN. Aging of Vascular System Is a Complex Process: The Cornerstone Mechanisms. Int J Mol Sci 2022; 23:ijms23136926. [PMID: 35805936 PMCID: PMC9266404 DOI: 10.3390/ijms23136926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/15/2022] [Accepted: 06/20/2022] [Indexed: 02/04/2023] Open
Abstract
Aging is one of the most intriguing processes of human ontogenesis. It is associated with the development of a wide variety of diseases affecting all organs and their systems. The victory over aging is the most desired goal of scientists; however, it is hardly achievable in the foreseeable future due to the complexity and ambiguity of the process itself. All body systems age, lose their performance, and structural disorders accumulate. The cardiovascular system is no exception. And it is cardiovascular diseases that occupy a leading position as a cause of death, especially among the elderly. The aging of the cardiovascular system is well described from a mechanical point of view. Moreover, it is known that at the cellular level, a huge number of mechanisms are involved in this process, from mitochondrial dysfunction to inflammation. It is on these mechanisms, as well as the potential for taking control of the aging of the cardiovascular system, that we focused on in this review.
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Affiliation(s)
- Anastasia V. Poznyak
- Institute for Atherosclerosis Research, Osennyaya 4-1-207, 121609 Moscow, Russia;
- Correspondence: (A.V.P.); (A.N.O.)
| | - Nikolay K. Sadykhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.K.S.); (A.G.K.)
| | - Andrey G. Kartuesov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.K.S.); (A.G.K.)
| | - Evgeny E. Borisov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Petrovsky National Research Centre of Surgery, 2, Abrikosovsky Lane, 119991 Moscow, Russia;
| | - Vasily N. Sukhorukov
- Institute for Atherosclerosis Research, Osennyaya 4-1-207, 121609 Moscow, Russia;
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Petrovsky National Research Centre of Surgery, 2, Abrikosovsky Lane, 119991 Moscow, Russia;
| | - Alexander N. Orekhov
- Institute for Atherosclerosis Research, Osennyaya 4-1-207, 121609 Moscow, Russia;
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 8 Baltiiskaya Street, 125315 Moscow, Russia; (N.K.S.); (A.G.K.)
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Petrovsky National Research Centre of Surgery, 2, Abrikosovsky Lane, 119991 Moscow, Russia;
- Correspondence: (A.V.P.); (A.N.O.)
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12
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Yang J, Guo Q, Feng X, Liu Y, Zhou Y. Mitochondrial Dysfunction in Cardiovascular Diseases: Potential Targets for Treatment. Front Cell Dev Biol 2022; 10:841523. [PMID: 35646910 PMCID: PMC9140220 DOI: 10.3389/fcell.2022.841523] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/13/2022] [Indexed: 12/20/2022] Open
Abstract
Cardiovascular diseases (CVDs) are serious public health issues and are responsible for nearly one-third of global deaths. Mitochondrial dysfunction is accountable for the development of most CVDs. Mitochondria produce adenosine triphosphate through oxidative phosphorylation and inevitably generate reactive oxygen species (ROS). Excessive ROS causes mitochondrial dysfunction and cell death. Mitochondria can protect against these damages via the regulation of mitochondrial homeostasis. In recent years, mitochondria-targeted therapy for CVDs has attracted increasing attention. Various studies have confirmed that clinical drugs (β-blockers, angiotensin-converting enzyme inhibitors/angiotensin receptor-II blockers) against CVDs have mitochondrial protective functions. An increasing number of cardiac mitochondrial targets have shown their cardioprotective effects in experimental and clinical studies. Here, we briefly introduce the mechanisms of mitochondrial dysfunction and summarize the progression of mitochondrial targets against CVDs, which may provide ideas for experimental studies and clinical trials.
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13
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Blagov A, Zhigmitova EB, Sazonova MA, Mikhaleva LM, Kalmykov V, Shakhpazyan NK, Orekhova VA, Orekhov AN. Novel Models of Crohn's Disease Pathogenesis Associated with the Occurrence of Mitochondrial Dysfunction in Intestinal Cells. Int J Mol Sci 2022; 23:ijms23095141. [PMID: 35563530 PMCID: PMC9102004 DOI: 10.3390/ijms23095141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/28/2022] [Accepted: 05/02/2022] [Indexed: 12/10/2022] Open
Abstract
Crohn’s disease remains one of the challenging problems of modern medicine, and the development of new and effective and safer treatments against it is a dynamic field of research. To make such developments possible, it is important to understand the pathologic processes underlying the onset and progression of Crohn’s disease at the molecular and cellular levels. During the recent years, the involvement of mitochondrial dysfunction and associated chronic inflammation in these processes became evident. In this review, we discuss the published works on pathogenetic models of Crohn’s disease. These models make studying the role of mitochondrial dysfunction in the disease pathogenesis possible and advances the development of novel therapies.
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Affiliation(s)
- Alexander Blagov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.B.); (M.A.S.); (V.K.)
| | - Elena B. Zhigmitova
- Federal State Budgetary Scientific Institution “Petrovsky National Research Centre of Surgery, A.P. Avtsyn Research Institute of Human Morphology”, 117418 Moscow, Russia; (E.B.Z.); (L.M.M.); (N.K.S.)
| | - Margarita A. Sazonova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.B.); (M.A.S.); (V.K.)
| | - Liudmila M. Mikhaleva
- Federal State Budgetary Scientific Institution “Petrovsky National Research Centre of Surgery, A.P. Avtsyn Research Institute of Human Morphology”, 117418 Moscow, Russia; (E.B.Z.); (L.M.M.); (N.K.S.)
| | - Vladislav Kalmykov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (A.B.); (M.A.S.); (V.K.)
| | - Nikolay K. Shakhpazyan
- Federal State Budgetary Scientific Institution “Petrovsky National Research Centre of Surgery, A.P. Avtsyn Research Institute of Human Morphology”, 117418 Moscow, Russia; (E.B.Z.); (L.M.M.); (N.K.S.)
| | - Varvara A. Orekhova
- Skolkovo Innovative Center, Institute for Atherosclerosis Research, 121609 Moscow, Russia
- Correspondence: (V.A.O.); (A.N.O.); Tel.: +7-9057506815 (A.N.O.)
| | - Alexander N. Orekhov
- Skolkovo Innovative Center, Institute for Atherosclerosis Research, 121609 Moscow, Russia
- Correspondence: (V.A.O.); (A.N.O.); Tel.: +7-9057506815 (A.N.O.)
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14
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Amorim JA, Coppotelli G, Rolo AP, Palmeira CM, Ross JM, Sinclair DA. Mitochondrial and metabolic dysfunction in ageing and age-related diseases. Nat Rev Endocrinol 2022; 18:243-258. [PMID: 35145250 PMCID: PMC9059418 DOI: 10.1038/s41574-021-00626-7] [Citation(s) in RCA: 216] [Impact Index Per Article: 108.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/17/2021] [Indexed: 12/11/2022]
Abstract
Organismal ageing is accompanied by progressive loss of cellular function and systemic deterioration of multiple tissues, leading to impaired function and increased vulnerability to death. Mitochondria have become recognized not merely as being energy suppliers but also as having an essential role in the development of diseases associated with ageing, such as neurodegenerative and cardiovascular diseases. A growing body of evidence suggests that ageing and age-related diseases are tightly related to an energy supply and demand imbalance, which might be alleviated by a variety of interventions, including physical activity and calorie restriction, as well as naturally occurring molecules targeting conserved longevity pathways. Here, we review key historical advances and progress from the past few years in our understanding of the role of mitochondria in ageing and age-related metabolic diseases. We also highlight emerging scientific innovations using mitochondria-targeted therapeutic approaches.
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Affiliation(s)
- João A Amorim
- Department of Genetics, Blavatnik Institute, Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA, USA
- Center for Neurosciences and Cell Biology of the University of Coimbra, Coimbra, Portugal
- IIIUC, Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Giuseppe Coppotelli
- Department of Genetics, Blavatnik Institute, Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA, USA
- George and Anne Ryan Institute for Neuroscience, College of Pharmacy, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA
| | - Anabela P Rolo
- Center for Neurosciences and Cell Biology of the University of Coimbra, Coimbra, Portugal
- Department of Life Sciences of the University of Coimbra, Coimbra, Portugal
| | - Carlos M Palmeira
- Center for Neurosciences and Cell Biology of the University of Coimbra, Coimbra, Portugal
- Department of Life Sciences of the University of Coimbra, Coimbra, Portugal
| | - Jaime M Ross
- Department of Genetics, Blavatnik Institute, Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA, USA
- George and Anne Ryan Institute for Neuroscience, College of Pharmacy, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA
| | - David A Sinclair
- Department of Genetics, Blavatnik Institute, Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA, USA.
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15
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Oller J, Gabandé-Rodríguez E, Roldan-Montero R, Ruiz-Rodríguez MJ, Redondo JM, Martín-Ventura JL, Mittelbrunn M. Rewiring Vascular Metabolism Prevents Sudden Death due to Aortic Ruptures-Brief Report. Arterioscler Thromb Vasc Biol 2022; 42:462-469. [PMID: 35196876 DOI: 10.1161/atvbaha.121.317346] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The goal of this study was to determine whether boosting mitochondrial respiration prevents the development of fatal aortic ruptures triggered by atherosclerosis and hypertension. METHODS Ang-II (angiotensin-II) was infused in ApoE (Apolipoprotein E)-deficient mice fed with a western diet to induce acute aortic aneurysms and lethal ruptures. RESULTS We found decreased mitochondrial respiration and mitochondrial proteins in vascular smooth muscle cells from murine and human aortic aneurysms. Boosting NAD levels with nicotinamide riboside reduced the development of aortic aneurysms and sudden death by aortic ruptures. CONCLUSIONS Targetable vascular metabolism is a new clinical strategy to prevent fatal aortic ruptures and sudden death in patients with aortic aneurysms.
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Affiliation(s)
- Jorge Oller
- Centro de Biología Molecular Severo Ochoa (CBMSO), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain (J.O., E.G.-R., M.M.).,Instituto de Investigación Sanitaria del Hospital 12 de Octubre (i+12), Madrid, Spain (J.O., E.G.-R., M.M.).,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain (J.O., R.R.-M. M.J.R.-R., J.M.R., J.L.M.-V.)
| | - Enrique Gabandé-Rodríguez
- Centro de Biología Molecular Severo Ochoa (CBMSO), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain (J.O., E.G.-R., M.M.).,Instituto de Investigación Sanitaria del Hospital 12 de Octubre (i+12), Madrid, Spain (J.O., E.G.-R., M.M.)
| | - Raquel Roldan-Montero
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain (J.O., R.R.-M. M.J.R.-R., J.M.R., J.L.M.-V.).,Instituto de Investigación Sanitaria Fundación Jiménez Díaz, Madrid, Spain (R.R.-M., J.L.M.-V.)
| | - María Jesús Ruiz-Rodríguez
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain (J.O., R.R.-M. M.J.R.-R., J.M.R., J.L.M.-V.).,Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain (M.J.R.-R., J.M.R.)
| | - Juan Miguel Redondo
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain (J.O., R.R.-M. M.J.R.-R., J.M.R., J.L.M.-V.).,Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain (M.J.R.-R., J.M.R.)
| | - José Luís Martín-Ventura
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Spain (J.O., R.R.-M. M.J.R.-R., J.M.R., J.L.M.-V.).,Instituto de Investigación Sanitaria Fundación Jiménez Díaz, Madrid, Spain (R.R.-M., J.L.M.-V.)
| | - María Mittelbrunn
- Centro de Biología Molecular Severo Ochoa (CBMSO), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain (J.O., E.G.-R., M.M.).,Instituto de Investigación Sanitaria del Hospital 12 de Octubre (i+12), Madrid, Spain (J.O., E.G.-R., M.M.)
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16
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Vilne B, Sawant A, Rudaka I. Examining the Association between Mitochondrial Genome Variation and Coronary Artery Disease. Genes (Basel) 2022; 13:genes13030516. [PMID: 35328073 PMCID: PMC8953999 DOI: 10.3390/genes13030516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 12/04/2022] Open
Abstract
Large-scale genome-wide association studies have identified hundreds of single-nucleotide variants (SNVs) significantly associated with coronary artery disease (CAD). However, collectively, these explain <20% of the heritability. Hypothesis: Here, we hypothesize that mitochondrial (MT)-SNVs might present one potential source of this “missing heritability”. Methods: We analyzed 265 MT-SNVs in ~500,000 UK Biobank individuals, exploring two different CAD definitions: a more stringent (myocardial infarction and/or revascularization; HARD = 20,405), and a more inclusive (angina and chronic ischemic heart disease; SOFT = 34,782). Results: In HARD cases, the most significant (p < 0.05) associations were for m.295C>T (control region) and m.12612A>G (ND5), found more frequently in cases (OR = 1.05), potentially related to reduced cardiorespiratory fitness in response to exercise, as well as for m.12372G>A (ND5) and m.11467A>G (ND4), present more frequently in controls (OR = 0.97), previously associated with lower ROS production rate. In SOFT cases, four MT-SNVs survived multiple testing corrections (at FDR < 5%), all potentially conferring increased CAD risk. Of those, m.11251A>G (ND4) and m.15452C>A (CYB) have previously shown significant associations with body height. In line with this, we observed that CAD cases were slightly less physically active, and their average body height was ~2.00 cm lower compared to controls; both traits are known to be related to increased CAD risk. Gene-based tests identified CO2 associated with HARD/SOFT CAD, whereas ND3 and CYB associated with SOFT cases (p < 0.05), dysfunction of which has been related to MT oxidative stress, obesity/T2D (CO2), BMI (ND3), and angina/exercise intolerance (CYB). Finally, we observed that macro-haplogroup I was significantly (p < 0.05) more frequent in HARD cases vs. controls (3.35% vs. 3.08%), potentially associated with response to exercise. Conclusions: We found only spurious associations between MT genome variation and HARD/SOFT CAD and conclude that more MT-SNV data in even larger study cohorts may be needed to conclusively determine the role of MT DNA in CAD.
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Affiliation(s)
- Baiba Vilne
- Bioinformatics Lab, Rīga Stradiņš University, LV-1007 Riga, Latvia;
- Correspondence:
| | - Aniket Sawant
- Bioinformatics Lab, Rīga Stradiņš University, LV-1007 Riga, Latvia;
| | - Irina Rudaka
- Scientific Laboratory of Molecular Genetics, Rīga Stradiņš University, LV-1007 Riga, Latvia;
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17
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Abstract
Advances in population-scale genomic sequencing have greatly expanded the understanding of the inherited basis of cardiovascular disease (CVD). Reanalysis of these genomic datasets identified an unexpected risk factor for CVD, somatically acquired DNA mutations. In this review, we provide an overview of somatic mutations and their contributions to CVD. We focus on the most common and well-described manifestation, clonal hematopoiesis of indeterminate potential. We also review the currently available data regarding how somatic mutations lead to tissue mosaicism in various forms of CVD, including atrial fibrillation and aortic aneurism associated with Marfan Syndrome. Finally, we highlight future research directions given current knowledge gaps and consider how technological advances will enhance the discovery of somatic mutations in CVD and management of patients with somatic mutations.
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Affiliation(s)
- J. Brett Heimlich
- Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center
| | - Alexander G. Bick
- Department of Medicine, Division of Genetic Medicine, Vanderbilt University Medical Center
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18
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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.
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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
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19
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Doblado L, Lueck C, Rey C, Samhan-Arias AK, Prieto I, Stacchiotti A, Monsalve M. Mitophagy in Human Diseases. Int J Mol Sci 2021; 22:ijms22083903. [PMID: 33918863 PMCID: PMC8069949 DOI: 10.3390/ijms22083903] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 02/06/2023] Open
Abstract
Mitophagy is a selective autophagic process, essential for cellular homeostasis, that eliminates dysfunctional mitochondria. Activated by inner membrane depolarization, it plays an important role during development and is fundamental in highly differentiated post-mitotic cells that are highly dependent on aerobic metabolism, such as neurons, muscle cells, and hepatocytes. Both defective and excessive mitophagy have been proposed to contribute to age-related neurodegenerative diseases, such as Parkinson’s and Alzheimer’s diseases, metabolic diseases, vascular complications of diabetes, myocardial injury, muscle dystrophy, and liver disease, among others. Pharmacological or dietary interventions that restore mitophagy homeostasis and facilitate the elimination of irreversibly damaged mitochondria, thus, could serve as potential therapies in several chronic diseases. However, despite extraordinary advances in this field, mainly derived from in vitro and preclinical animal models, human applications based on the regulation of mitochondrial quality in patients have not yet been approved. In this review, we summarize the key selective mitochondrial autophagy pathways and their role in prevalent chronic human diseases and highlight the potential use of specific interventions.
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Affiliation(s)
- Laura Doblado
- Instituto de Investigaciones Biomédicas “Alberto Sols” (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (L.D.); (C.L.); (C.R.)
| | - Claudia Lueck
- Instituto de Investigaciones Biomédicas “Alberto Sols” (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (L.D.); (C.L.); (C.R.)
| | - Claudia Rey
- Instituto de Investigaciones Biomédicas “Alberto Sols” (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (L.D.); (C.L.); (C.R.)
| | - Alejandro K. Samhan-Arias
- Department of Biochemistry, Universidad Autónoma de Madrid e Instituto de Investigaciones Biomédicas “Alberto Sols” (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain;
| | - Ignacio Prieto
- Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Isaac Peral 42, 28015 Madrid, Spain;
| | - Alessandra Stacchiotti
- Department of Biomedical Sciences for Health, Universita’ Degli Studi di Milano, Via Mangiagalli 31, 20133 Milan, Italy
- U.O. Laboratorio di Morfologia Umana Applicata, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
- Correspondence: (A.S.); (M.M.)
| | - Maria Monsalve
- Instituto de Investigaciones Biomédicas “Alberto Sols” (CSIC-UAM), Arturo Duperier 4, 28029 Madrid, Spain; (L.D.); (C.L.); (C.R.)
- Correspondence: (A.S.); (M.M.)
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20
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Wang Z, Chen H, Qin M, Liu C, Ma Q, Chen X, Zhang Y, Lai W, Zhang X, Zhong S. Associations of Mitochondrial Variants With Lipidomic Traits in a Chinese Cohort With Coronary Artery Disease. Front Genet 2021; 12:630359. [PMID: 33841498 PMCID: PMC8027325 DOI: 10.3389/fgene.2021.630359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/08/2021] [Indexed: 11/13/2022] Open
Abstract
Plasma lipids have been at the center stage of the prediction and prevention strategies for cardiovascular diseases (CVDs), and novel lipidomic traits have been recognized as reliable biomarkers for CVD risk prediction. The mitochondria serve as energy supply sites for cells and can synthesize a variety of lipids autonomously. Therefore, investigating the relationships between mitochondrial single nucleotide polymorphism (SNPs) and plasma lipidomic traits is meaningful. Here, we enrolled a total of 1,409 Han Chinese patients with coronary artery disease from three centers and performed linear regression analyses on the SNPs of mitochondrial DNA (mtDNA) and lipidomic traits in two independent groups. Sex, age, aspartate aminotransferase, estimated glomerular filtration rate, antihypertensive drugs, hypertension, and diabetes were adjusted. We identified three associations, namely, D-loopm.16089T>C with TG(50:4) NL-16:0, D-loopm.16145G>A with TG(54:5) NL-18:0, and D-loopm.16089T>C with PC(16:0_16:1) at the statistically significant threshold of FDR < 0.05. Then, we explored the relationships between mitochondrial genetic variants and traditional lipids, including triglyceride, total cholesterol (TC), low-density lipoprotein cholesterol (LDLC), and high-density lipoprotein cholesterol. Two significant associations were found, namely MT-ND6m.14178T>C with TC and D-loopm.215A>G with LDLC. Furthermore, we performed linear regression analysis to determine on the SNPs of mtDNA and left ventricular ejection fraction (LVEF) and found that the SNP D-loopm.16145G>A was nominally significantly associated with LVEF (P = 0.047). Our findings provide insights into the lipidomic context of mtDNA variations and highlight the importance of studying mitochondrial genetic variants related to lipid species.
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Affiliation(s)
- Zixian Wang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, China.,Department of Pharmacy, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Hui Chen
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, China.,Department of Pharmacy, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Min Qin
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, China.,Department of Pharmacy, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chen Liu
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qilin Ma
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
| | - Ying Zhang
- Department of Cardiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Weihua Lai
- Department of Pharmacy, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiaojuan Zhang
- Department of Pharmacy, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Shilong Zhong
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, China.,Department of Pharmacy, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
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21
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From Mitochondria to Atherosclerosis: The Inflammation Path. Biomedicines 2021; 9:biomedicines9030258. [PMID: 33807807 PMCID: PMC8000234 DOI: 10.3390/biomedicines9030258] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/26/2021] [Accepted: 02/27/2021] [Indexed: 12/11/2022] Open
Abstract
Inflammation is a key process in metazoan organisms due to its relevance for innate defense against infections and tissue damage. However, inflammation is also implicated in pathological processes such as atherosclerosis. Atherosclerosis is a chronic inflammatory disease of the arterial wall where unstable atherosclerotic plaque rupture causing platelet aggregation and thrombosis may compromise the arterial lumen, leading to acute or chronic ischemic syndromes. In this review, we will focus on the role of mitochondria in atherosclerosis while keeping inflammation as a link. Mitochondria are the main source of cellular energy. Under stress, mitochondria are also capable of controlling inflammation through the production of reactive oxygen species (ROS) and the release of mitochondrial components, such as mitochondrial DNA (mtDNA), into the cytoplasm or into the extracellular matrix, where they act as danger signals when recognized by innate immune receptors. Primary or secondary mitochondrial dysfunctions are associated with the initiation and progression of atherosclerosis by elevating the production of ROS, altering mitochondrial dynamics and energy supply, as well as promoting inflammation. Knowing and understanding the pathways behind mitochondrial-based inflammation in atheroma progression is essential to discovering alternative or complementary treatments.
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22
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Sazonova MA, Sinyov VV, Ryzhkova AI, Sazonova MD, Kirichenko TV, Khotina VA, Khasanova ZB, Doroschuk NA, Karagodin VP, Orekhov AN, Sobenin IA. Some Molecular and Cellular Stress Mechanisms Associated with Neurodegenerative Diseases and Atherosclerosis. Int J Mol Sci 2021; 22:E699. [PMID: 33445687 PMCID: PMC7828120 DOI: 10.3390/ijms22020699] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic stress is a combination of nonspecific adaptive reactions of the body to the influence of various adverse stress factors which disrupt its homeostasis, and it is also a corresponding state of the organism's nervous system (or the body in general). We hypothesized that chronic stress may be one of the causes occurence of several molecular and cellular types of stress. We analyzed literary sources and considered most of these types of stress in our review article. We examined genes and mutations of nuclear and mitochondrial genomes and also molecular variants which lead to various types of stress. The end result of chronic stress can be metabolic disturbance in humans and animals, leading to accumulation of reactive oxygen species (ROS), oxidative stress, energy deficiency in cells (due to a decrease in ATP synthesis) and mitochondrial dysfunction. These changes can last for the lifetime and lead to severe pathologies, including neurodegenerative diseases and atherosclerosis. The analysis of literature allowed us to conclude that under the influence of chronic stress, metabolism in the human body can be disrupted, mutations of the mitochondrial and nuclear genome and dysfunction of cells and their compartments can occur. As a result of these processes, oxidative, genotoxic, and cellular stress can occur. Therefore, chronic stress can be one of the causes forthe occurrence and development of neurodegenerative diseases and atherosclerosis. In particular, chronic stress can play a large role in the occurrence and development of oxidative, genotoxic, and cellular types of stress.
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Affiliation(s)
- Margarita A. Sazonova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Vasily V. Sinyov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Anastasia I. Ryzhkova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
| | - Marina D. Sazonova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
| | - Tatiana V. Kirichenko
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Research Institute of Human Morphology, 117418 Moscow, Russia
| | - Victoria A. Khotina
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Research Institute of Human Morphology, 117418 Moscow, Russia
| | - Zukhra B. Khasanova
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Natalya A. Doroschuk
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
| | - Vasily P. Karagodin
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Department of Commodity Science and Expertise, Plekhanov Russian University of Economics, 125993 Moscow, Russia
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Research Institute of Human Morphology, 117418 Moscow, Russia
- Institute for Atherosclerosis Research, Skolkovo Innovative Centre, 143024 Moscow, Russia
| | - Igor A. Sobenin
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia; (V.V.S.); (A.I.R.); (M.D.S.); (T.V.K.); (V.A.K.); (V.P.K.); (A.N.O.); (I.A.S.)
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (Z.B.K.); (N.A.D.)
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Orekhov AN, Ivanova EA, Markin AM, Nikiforov NG, Sobenin IA. Genetics of Arterial-Wall-Specific Mechanisms in Atherosclerosis: Focus on Mitochondrial Mutations. Curr Atheroscler Rep 2020; 22:54. [PMID: 32772280 DOI: 10.1007/s11883-020-00873-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Mutations in both nuclear and mitochondrial genes are associated with the development of atherosclerotic lesions in arteries and may provide a partial explanation to the focal nature of lesion distribution in the arterial wall. This review is aimed to discuss the genetic aspects of atherogenesis with a special focus on possible pro-atherogenic variants (mutations) of the nuclear and mitochondrial genomes that may be implicated in atherosclerosis development and progression. RECENT FINDINGS Mutations in the nuclear genes generally do not cause a phenotype restricted to a specific vascular wall cell and manifest themselves mostly at the organism level. Such mutations can act as important contributors to changes in lipid metabolism and modulate other risk factors of atherosclerosis. By contrast, mitochondrial DNA (mtDNA) mutations occurring locally in the arterial wall cells or in circulating immune cells may play a site-specific role in atherogenesis. The mosaic distribution of heteroplasmic mtDNA mutations in the arterial wall tissue may explain, at least to some extent, the locality and focality of atherosclerotic lesions distribution. The genetic mechanisms of atherogenesis include alterations of both nuclear and mitochondrial genomes. Altered lipid metabolism and inflammatory response of resident arterial wall and circulating immune cells may be related to mtDNA damage and defective mitophagy, which hinders clearance of dysfunctional mitochondria. Mutations of mtDNA can have mosaic distribution and locally affect functionality of endothelial and subendothelial intimal cells in the arterial wall contributing to atherosclerotic lesion development.
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Affiliation(s)
- Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 8 Baltiiskaya Street, Moscow, Russia, 125315. .,Laboratory of Infection Pathology and Molecular Microecology, Institute of Human Morphology, 3 Tsyurupa Street, Moscow, Russia, 117418.
| | - Ekaterina A Ivanova
- Institute for Atherosclerosis Research, 2-1-207 Osennyaya Street, Moscow, Russia, 121609.
| | - Alexander M Markin
- Laboratory of Infection Pathology and Molecular Microecology, Institute of Human Morphology, 3 Tsyurupa Street, Moscow, Russia, 117418
| | - Nikita G Nikiforov
- Centre of Collective Usage, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilova Street, Moscow, Russia, 119334.,Laboratory of Medical Genetics, Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 15A 3-rd Cherepkovskaya Street, Moscow, Russia, 121552
| | - Igor A Sobenin
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 8 Baltiiskaya Street, Moscow, Russia, 125315.,Laboratory of Medical Genetics, Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 15A 3-rd Cherepkovskaya Street, Moscow, Russia, 121552
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Mitochondria in aneurysms and dissections of the human ascending aorta. Cardiovasc Pathol 2020; 47:107207. [PMID: 32179251 DOI: 10.1016/j.carpath.2020.107207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 01/15/2020] [Accepted: 01/17/2020] [Indexed: 11/20/2022] Open
Abstract
Factors causing the weakness that underlies thoracic aorta aneurysms and dissections are not well known. Based on the findings of apoptosis and ischemic-like necrosis, we hypothesized a possible role for mitochondrial disturbances in the pathogenesis of these diseases. To evaluate if mitochondria at the aortic medial layer are damaged, samples of ascending aortas with aneurysms (n = 6), acute dissections (n = 5), and hypertensive (n = 9) and normotensive controls (n = 7) were analyzed by transmission electron microscopy. Number of mitochondria, areas of cytoplasm, and areas of mitochondria were measured, and area percentage of the cytoplasm corresponding to mitochondria, their number by unit of area, and their mean area were calculated in randomly taken photographs. Data were compared using one-way analysis of variance or Kruskal-Wallis tests. Significant differences (P ≤ 0.05) were found in the number of mitochondria and their mean area, showing opposite results: the number increased and the mean area decreased from normotensive controls to hypertensive controls to acute dissections to aneurysms, although post hoc tests showed that only the differences between the aneurysms and either both controls (number of mitochondria/mm2: 10.37 in normotensive controls, 15.61 in hypertensive controls, and 43.67 in aneurysms) or normotensive controls only (mean area: 2800.15 in normotensive controls vs 894.91 μm2 in aneurysms) were significant. In conclusion, there are more, smaller mitochondria in ascending aorta aneurysms. This pattern possibly corresponds to dysfunctional mitochondria, indicating that alterations in the dynamics of these organelles may play a role in the pathogenesis of thoracic aorta aneurysms and dissections.
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Poznyak AV, Ivanova EA, Sobenin IA, Yet SF, Orekhov AN. The Role of Mitochondria in Cardiovascular Diseases. BIOLOGY 2020; 9:biology9060137. [PMID: 32630516 PMCID: PMC7344641 DOI: 10.3390/biology9060137] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 12/16/2022]
Abstract
The role of mitochondria in cardiovascular diseases is receiving ever growing attention. As a central player in the regulation of cellular metabolism and a powerful controller of cellular fate, mitochondria appear to comprise an interesting potential therapeutic target. With the development of DNA sequencing methods, mutations in mitochondrial DNA (mtDNA) became a subject of intensive study, since many directly lead to mitochondrial dysfunction, oxidative stress, deficient energy production and, as a result, cell dysfunction and death. Many mtDNA mutations were found to be associated with chronic human diseases, including cardiovascular disorders. In particular, 17 mtDNA mutations were reported to be associated with ischemic heart disease in humans. In this review, we discuss the involvement of mitochondrial dysfunction in the pathogenesis of atherosclerosis and describe the mtDNA mutations identified so far that are associated with atherosclerosis and its risk factors.
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Affiliation(s)
- Anastasia V. Poznyak
- Department of Basic Research, Institute for Atherosclerosis Research, Skolkovo Innovative Center, 121609 Moscow, Russia; (A.V.P.); (E.A.I.)
| | - Ekaterina A. Ivanova
- Department of Basic Research, Institute for Atherosclerosis Research, Skolkovo Innovative Center, 121609 Moscow, Russia; (A.V.P.); (E.A.I.)
| | - Igor A. Sobenin
- Laboratory of Medical Genetics, National Medical Research Center of Cardiology, 15A 3-rd Cherepkovskaya Street, 121552 Moscow, Russia;
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System & Central Laboratory of Pathology, Institute of Human Morphology, 3 Tsyurupa Street, 117418 Moscow, Russia
| | - Shaw-Fang Yet
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 35053, Taiwan;
| | - Alexander N. Orekhov
- Laboratory of Infection Pathology and Molecular Microecology, Institute of Human Morphology, 3 Tsyurupa Street, 117418 Moscow, Russia
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 8 Baltiyskaya st., 125315 Moscow, Russia
- Correspondence: ; Tel./Fax: +7-(495)-415-9594
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26
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The alterations of mitochondrial DNA in coronary heart disease. Exp Mol Pathol 2020; 114:104412. [PMID: 32113905 DOI: 10.1016/j.yexmp.2020.104412] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 02/24/2020] [Accepted: 02/27/2020] [Indexed: 12/17/2022]
Abstract
Coronary heart disease (CHD) is the major cause of death in modern society. CHD is characterized by atherosclerosis, which could lead to vascular cavity stenosis or obstruction, resulting in ischemic cardiac conditions such as angina and myocardial infarction. In terms of the mitochondrion, the main function is to produce adenosine triphosphate (ATP) for cells. And the alterations (including mutations, altered copy number and haplogroups) of mitochondrial DNA (mtDNA) are associated with the abnormal expression of oxidative phosphorylation (OXPHOS) system, resulting in mitochondrial dysfunction, then leading to perturbation on the electron transport chain and increased ROS generation and reduction in ATP level, contributing to ATP-producing disorders and oxidative stress, which may further accelerate development or vulnerability of atherosclerosis and myocardial ischemic injury. Therefore, the mtDNA defects may play an important role in making an early diagnosis, identifying disease-specific biomarkers and therapeutic targets, and predicting outcomes for patients with atherosclerosis and CHD. In this review, we aim to summarize the contribution of mtDNA mutations, altered mtDNA copy number and mtDNA haplogroups on the occurrence and development of CHD.
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Sobenin IA, Zhelankin AV, Khasanova ZB, Sinyov VV, Medvedeva LV, Sagaidak MO, Makeev VJ, Kolmychkova KI, Smirnova AS, Sukhorukov VN, Postnov AY, Grechko AV, Orekhov AN. Heteroplasmic Variants of Mitochondrial DNA in Atherosclerotic Lesions of Human Aortic Intima. Biomolecules 2019; 9:biom9090455. [PMID: 31500189 PMCID: PMC6770808 DOI: 10.3390/biom9090455] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022] Open
Abstract
Mitochondrial dysfunction and oxidative stress are likely involved in atherogenesis. Since the mitochondrial genome variation can alter functional activity of cells, it is necessary to assess the presence in atherosclerotic lesions of mitochondrial DNA (mtDNA) heteroplasmic mutations known to be associated with different pathological processes and ageing. In this study, mtDNA heteroplasmy and copy number (mtCN) were evaluated in the autopsy-derived samples of aortic intima differing by the type of atherosclerotic lesions. To detect mtDNA heteroplasmic variants, next generation sequencing was used, and mtCN measurement was performed by qPCR. It was shown that mtDNA heteroplasmic mutations are characteristic for particular areas of intimal tissue; in 83 intimal samples 55 heteroplasmic variants were found; mean minor allele frequencies level accounted for 0.09, with 12% mean heteroplasmy level. The mtCN variance measured in adjacent areas of intima was high, but atherosclerotic lesions and unaffected intima did not differ significantly in mtCN values. Basing on the ratio of minor and major nucleotide mtDNA variants, we can conclude that there exists the increase in the number of heteroplasmic mtDNA variants, which corresponds to the extent of atherosclerotic morphologic phenotype.
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Affiliation(s)
- Igor A Sobenin
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia.
- Research Institute of Threpsology and Healthy Longevity, Plekhanov Russian University of Economics, 115093 Moscow, Russia.
| | - Andrey V Zhelankin
- Federal Research and Clinical Center of Physical-Chemical Medicine, 119435 Moscow, Russia.
| | - Zukhra B Khasanova
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
| | - Vasily V Sinyov
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia.
| | - Lyudmila V Medvedeva
- Federal Research Center of Transplantology and Artificial Organs, 123182 Moscow, Russia.
| | - Maria O Sagaidak
- Vavilov Institute of General Genetics, 117971 Moscow, Russia.
- Moscow Institute of Physics and Technology, Dolgoprudny, 141701 Moscow Region, Russia.
| | - Vsevolod J Makeev
- Vavilov Institute of General Genetics, 117971 Moscow, Russia.
- Moscow Institute of Physics and Technology, Dolgoprudny, 141701 Moscow Region, Russia.
- Engelhardt Institute of Molecular Biology, 119991 Moscow, Russia.
| | - Kira I Kolmychkova
- Institute for Atherosclerosis Research, Skolkovo Innovation Center, 143026 Moscow, Russia.
| | - Anna S Smirnova
- Institute for Atherosclerosis Research, Skolkovo Innovation Center, 143026 Moscow, Russia.
| | - Vasily N Sukhorukov
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Research Institute of Human Morphology, 117418 Moscow, Russia.
| | - Anton Y Postnov
- Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia.
- Research Institute of Human Morphology, 117418 Moscow, Russia.
| | - Andrey V Grechko
- Federal Scientific Clinical Center for Resuscitation and Rehabilitation, 141534 Moscow Region, Russia.
| | - Alexander N Orekhov
- Institute for Atherosclerosis Research, Skolkovo Innovation Center, 143026 Moscow, Russia.
- Research Institute of Human Morphology, 117418 Moscow, Russia.
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Volobueva A, Grechko A, Yet SF, Sobenin I, Orekhov A. Changes in Mitochondrial Genome Associated with Predisposition to Atherosclerosis and Related Disease. Biomolecules 2019; 9:E377. [PMID: 31426564 PMCID: PMC6723661 DOI: 10.3390/biom9080377] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/08/2019] [Accepted: 08/13/2019] [Indexed: 12/16/2022] Open
Abstract
Atherosclerosis-related cardiovascular diseases remain the leading cause of morbidity and mortality, and the search for novel diagnostic and therapeutic methods is ongoing. Mitochondrial DNA (mtDNA) mutations associated with atherosclerosis represent one of the less explored aspects of the disease pathogenesis that may bring some interesting opportunities for establishing novel molecular markers and, possibly, new points of therapeutic intervention. Recent studies have identified a number of mtDNA mutations, for which the heteroplasmy level was positively or negatively associated with atherosclerosis, including the disease at its early, subclinical stages. In this review, we summarize the results of these studies, providing a list of human mtDNA mutations potentially involved in atherosclerosis. The molecular mechanisms underlying such involvement remain to be elucidated, although it is likely that some of them may be responsible for the increased oxidative stress, which plays an important role in atherosclerosis.
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Affiliation(s)
- Aleksandrina Volobueva
- Laboratory of Gene Therapy, Biocad Biotechnology Company, Saint-Petersburg, Strelnya 198515, Russia
| | - Andrey Grechko
- Federal Scientific Clinical Center for Resuscitation and Rehabilitation, Moscow 109240, Russia
| | - Shaw-Fang Yet
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 35053, Taiwan
| | - Igor Sobenin
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russia
| | - Alexander Orekhov
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow 121609, Russia.
- Institute of Human Morphology, Moscow 117418, Russia.
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Ma WQ, Sun XJ, Wang Y, Zhu Y, Han XQ, Liu NF. Restoring mitochondrial biogenesis with metformin attenuates β-GP-induced phenotypic transformation of VSMCs into an osteogenic phenotype via inhibition of PDK4/oxidative stress-mediated apoptosis. Mol Cell Endocrinol 2019; 479:39-53. [PMID: 30170182 DOI: 10.1016/j.mce.2018.08.012] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/27/2018] [Accepted: 08/27/2018] [Indexed: 12/19/2022]
Abstract
Mitochondrial abnormalities have long been observed in the development of vascular calcification. Metformin, a member of the biguanide class of antidiabetic drugs, has recently received attention owing to new findings regarding its protective role in cardiovascular disease. Since the precise control of mitochondrial quantity and quality is critical for the survival and function of vascular smooth muscle cells (VSMCs), maintaining mitochondrial homeostasis may be a potential protective factor for VSMCs against osteoblast-like phenotypic transition. However, limited studies have been reported in this area. Here, we investigated the role of metformin in the phenotypic transformation of VSMCs, as well as its intracellular signal transduction pathways. We demonstrated that supplementation with metformin restored the β-glycerophosphate (β-GP)-mediated impairment of mitochondrial biogenesis in VSMCs, as evidenced by an increased mitochondrial DNA copy number, a restored mitochondrial membrane potential (MMP), and upregulated mitochondrial biogenesis-related gene expression, whereas the AMP-activated protein kinase (AMPK) inhibitor compound C suppressed these effects. We also observed that overexpression of pyruvate dehydrogenase kinase 4 (PDK4), an important mitochondrial matrix enzyme in cellular energy metabolism, exacerbated β-GP-induced oxidative stress and subsequent apoptosis in VSMCs but that these effects were suppressed by dichloroacetate, a widely reported PDK4 inhibitor. More importantly, enhanced mitochondrial biogenesis attenuated the β-GP-induced phenotypic transformation of VSMCs into an osteogenic phenotype through inhibition of the PDK4/oxidative stress-mediated apoptosis pathway, whereas disruption of mitochondrial biogenesis by zidovudine aggravated β-GP-induced apoptosis in VSMCs. In addition, inhibition of autophagy by small interfering RNA targeting Atg5 reduced mitochondrial biogenesis in VSMCs. In summary, we uncovered a novel mechanism by which metformin attenuates the phenotypic transformation of VSMCs into an osteogenic phenotype via inhibition of the PDK4/oxidative stress-mediated apoptosis pathway, and mitochondrial homeostasis is involved in this process.
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Affiliation(s)
- Wen-Qi Ma
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao, Nanjing 210009, PR China
| | - Xue-Jiao Sun
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao, Nanjing 210009, PR China
| | - Ying Wang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao, Nanjing 210009, PR China
| | - Yi Zhu
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao, Nanjing 210009, PR China
| | - Xi-Qiong Han
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao, Nanjing 210009, PR China
| | - Nai-Feng Liu
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao, Nanjing 210009, PR China.
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Mitochondrial Genome Mutations Associated with Myocardial Infarction. DISEASE MARKERS 2018; 2018:9749457. [PMID: 29670672 PMCID: PMC5835263 DOI: 10.1155/2018/9749457] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/08/2017] [Accepted: 01/23/2018] [Indexed: 01/20/2023]
Abstract
Myocardial infarction is one of the clinical manifestations of coronary heart disease. In some cases, the cause of myocardial infarction may be atherosclerotic plaques which occurred in the human aorta. The association of mtDNA mutations with atherosclerotic lesions in human arteries was previously detected by our research group. In this study, we used samples of white blood cells collected from 225 patients with myocardial infarction and 239 control persons with no health complaints. DNA was isolated from the blood leukocyte samples. Then, PCR fragments of DNA were obtained. They contained the investigated regions of 11 mitochondrial genome mutations (m.5178C>A, m.3336T>C, m.652delG, m.12315G>A, m.14459G>A, m.652insG, m.14846G>A, m.13513G>A, m.1555A>G, m.15059G>A, m.3256C>T). According to the obtained results, three mutations of the human mitochondrial genome correlated with myocardial infarction. A positive correlation was observed for mutation m.5178C>A. At the same time, a highly significant negative correlation with myocardial infarction was observed for mutation m.14846G>A. One single-nucleotide substitution of m.12315G>A had a trend towards negative correlation. These mutations can potentially be useful for creating molecular/cellular models for studying the mechanisms of myocardial infarction and designing novel therapies. Moreover, these mutations can possibly be used for diagnostic purposes.
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Small DM, Jones JS, Tendler II, Miller PE, Ghetti A, Nishimura N. Label-free imaging of atherosclerotic plaques using third-harmonic generation microscopy. BIOMEDICAL OPTICS EXPRESS 2018; 9:214-229. [PMID: 29359098 PMCID: PMC5772576 DOI: 10.1364/boe.9.000214] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/24/2017] [Accepted: 12/02/2017] [Indexed: 05/18/2023]
Abstract
Multiphoton microscopy using laser sources in the mid-infrared range (MIR, 1,300 nm and 1,700 nm) was used to image atherosclerotic plaques from murine and human samples. Third harmonic generation (THG) from atherosclerotic plaques revealed morphological details of cellular and extracellular lipid deposits. Simultaneous nonlinear optical signals from the same laser source, including second harmonic generation and endogenous fluorescence, resulted in label-free images of various layers within the diseased vessel wall. The THG signal adds an endogenous contrast mechanism with a practical degree of specificity for atherosclerotic plaques that complements current nonlinear optical methods for the investigation of cardiovascular disease. Our use of whole-mount tissue and backward scattered epi-detection suggests THG could potentially be used in the future as a clinical tool.
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Affiliation(s)
- David M. Small
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
- Contributed equally
| | - Jason S. Jones
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
- Contributed equally
| | - Irwin I. Tendler
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
| | - Paul E. Miller
- Anabios Corporation, 3030 Bunker Hill St., San Diego, CA 92109, USA
| | - Andre Ghetti
- Anabios Corporation, 3030 Bunker Hill St., San Diego, CA 92109, USA
| | - Nozomi Nishimura
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
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Khalifa ARM, Abdel-Rahman EA, Mahmoud AM, Ali MH, Noureldin M, Saber SH, Mohsen M, Ali SS. Sex-specific differences in mitochondria biogenesis, morphology, respiratory function, and ROS homeostasis in young mouse heart and brain. Physiol Rep 2017; 5:5/6/e13125. [PMID: 28325789 PMCID: PMC5371549 DOI: 10.14814/phy2.13125] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 02/07/2023] Open
Abstract
Sex-specific differences in mitochondrial function and free radical homeostasis are reported in the context of aging but not well-established in pathogeneses occurring early in life. Here, we examine if sex disparity in mitochondria function, morphology, and redox status starts early and hence can be implicated in sexual dimorphism in cardiac as well as neurological disorders prevalent at young age. Although mitochondrial activity in the heart did not significantly vary between sexes, female brain exhibited enhanced respiration and higher reserve capacity. This was associated with lower H2O2 production in female cardiac and brain tissues. Using transmission electron microscopy, we found that the number of female cardiac mitochondria is moderately greater (117 ± 3%, P = 0.049, N = 4) than male's, which increased significantly for cortical mitochondria (134 ± 4%, P = 0.001, N = 4). However, male's cardiac mitochondria exhibited fragmented, circular, and smaller mitochondria relative to female's mitochondria, while no morphologic sex-dependent differences were observed in cortical mitochondria. No sex differences were detected in Nox2 and Nox4 proteins or O2-consuming/H2O2-producing activities in brain homogenate or synaptosomes. However, a strong trend of increased EPR-detected NOX superoxide in male synaptosomes hinted at higher superoxide dismutase activity in female brains, which was confirmed by two independent protocols. We also provide direct evidence that respiring mitochondria generally produce an order-of-magnitude lower reactive oxygen species (ROS) proportions than currently estimated. Our results indicate that sex differences in mitochondrial biogenesis, bioenergetics, and morphology may start at young age and that sex-dependent SOD capacity may be responsible for differences in ROS homeostasis in heart and brain.
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Affiliation(s)
- Abdel Rahman M Khalifa
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Engy A Abdel-Rahman
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Ali M Mahmoud
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Mohamed H Ali
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Maha Noureldin
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Saber H Saber
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Mahmoud Mohsen
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Sameh S Ali
- Center for Aging and Associated Diseases, Helmy Institute of Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
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VLDL Induced Modulation of Nitric Oxide Signalling and Cell Redox Homeostasis in HUVEC. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2697364. [PMID: 29085553 PMCID: PMC5632467 DOI: 10.1155/2017/2697364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 07/31/2017] [Accepted: 08/15/2017] [Indexed: 12/25/2022]
Abstract
High levels of circulating lipoprotein constitute a risk factor for cardiovascular diseases, and in this context, the specific role of the very-low-density lipoproteins (VLDL) is poorly understood. The response of human umbilical vein endothelial cells (HUVEC) to VLDL exposure was studied, especially focusing on the pathways involved in alteration of redox homeostasis and nitric oxide (NO) bioavailability. The results obtained by the analysis of the expression level of genes implicated in the NO metabolism and oxidative stress response indicated a strong activation of inducible NO synthase (iNOS) upon 24 h exposure to VLDL, particularly if these have been preventively oxidised. Simultaneously, both mRNA and protein expression of endothelial NO synthase (eNOS) were decreased and its phosphorylation pattern, at the key residues Tyr495 and Ser1177, strongly suggested the occurrence of the eNOS uncoupling. The results are consistent with the observed increased production of nitrites and nitrates (NOx), reactive oxygen species (ROS), 3-nitrotyrosine (3-NT), and, at mitochondrial level, a deficit in mitochondrial O2 consumption. Altogether, these data suggest that the VLDL, particularly if oxidised, when allowed to persist in contact with endothelial cells, strongly alter NO bioavailability, affecting redox homeostasis and mitochondrial function.
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Babintseva YD, Sergeeva AM, Karagodin VP, Orekhov AN. Atherogenesis in human - clinical aspects of circulating immune complexes. ACTA ACUST UNITED AC 2016. [DOI: 10.18821/0023-2149-2016-94-5-325-332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
It has been suggested that circulating immune complexes containing low density lipoproteins (LDL-CIC) play a role in atherogenesis and are involved in the formation of early atherosclerotic lesions. The complexes, as well as anti-LDL antibody were found in the blood of patients with atherosclerotic process in various cardiovascular diseases, well as in the blood of animals with experimentally modulated atherosclerosis. One can assume that the presence anti-LDL antibodies in blood is a result of an immune response that is induced by modification of lipoproteins. LDL-CIC differ from native LDL in many aspects. They have much lower levels of sialic acid, a smaller diameter and a higher density electronegativity than native LDL. The fraction of the LDL-CIC in serum is an important manifestation of the atherosclerotic process. LDL-CIC, unlike the native LDL is able to induce intracellular accumulation of neutral lipids, especially esterified cholesterol in cell cultures obtained from healthy human aortic intima and macrophages in culture. After removal of the LDL-CIC, the serum of CHD-patients loses its atherogenic properties. The titer of the LDL-CIC in the blood serum significantly correlate with the progression of atherosclerosis and in vivo has the highest diagnostic yield of measured among other lipid parameters. Increasing CIC- cholesterol could also increase the risk of coronary artery atherosclerosis.
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Affiliation(s)
| | - A. M. Sergeeva
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences
| | | | - A. N. Orekhov
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences; Institute for Atherosclerosis Research, Skolkovo Innovative Center
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Mitrofanov KY, Zhelankin AV, Shiganova GM, Sazonova MA, Bobryshev YV, Postnov AY, Sobenin I А IA, Orekhov AN. Analysis of mitochondrial DNA heteroplasmic mutations A1555G, C3256T, T3336C, С5178А, G12315A, G13513A, G14459A, G14846А and G15059A in CHD patients with the history of myocardial infarction. Exp Mol Pathol 2015; 100:87-91. [PMID: 26654794 DOI: 10.1016/j.yexmp.2015.12.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 12/02/2015] [Indexed: 11/16/2022]
Abstract
The present study was undertaken in order to advance our earlier studies directed to define genetic risk of atherosclerotic vascular lesion development on a base on the analysis of sets of mutational load relevant to the mitochondrial genome mutations. A comparative evaluation of the two study participants' populations (that included coronary heart disease (CHD) patients who underwent myocardial infarction and apparently healthy donors with no clinical manifestations of coronary heart disease) on heteroplasmy levels of nine mutations of the mitochondrial genome (A1555G, C3256T, T3336C, С5178А, G12315A, G13513A, G14459A, G14846А and G15059A) that were shown previously to be associated with risk factors for atherosclerosis was performed. Close associations with the risk of cardiovascular disease were confirmed for mutation C3256T (gene MT-TL1), G12315A (gene MT-TL2), G13513A (gene MT-ND5) and G15059A (gene MT-CYB) by RT-PCR.
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Affiliation(s)
- Konstantin Y Mitrofanov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation; Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow Region, Russian Federation
| | - Andrey V Zhelankin
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Gulnara M Shiganova
- Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow Region, Russian Federation; Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Margarita A Sazonova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation; Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Yuri V Bobryshev
- Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow Region, Russian Federation; Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, Australia; School of Medicine, University of Western Sydney, Campbelltown NSW, Australia.
| | - Anton Y Postnov
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Igor A Sobenin I А
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation; Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation; Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow Region, Russian Federation; Department of Biophysics, Biological Faculty, Moscow State University, Moscow, Russian Federation
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Age-dependent accumulation of mitochondrial DNA deletions in the aortic root of atherosclerosis-prone apolipoprotein E-knockout mice. Arch Gerontol Geriatr 2015; 63:72-7. [PMID: 26586111 DOI: 10.1016/j.archger.2015.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 11/02/2015] [Accepted: 11/03/2015] [Indexed: 02/01/2023]
Abstract
PURPOSE To investigate whether mitochondrial DNA (mtDNA) damage, specifically deletion, contributes to the development of atherosclerosis or is simply a secondary effect of the primary factors causing atherosclerosis. MATERIALS AND METHODS mtDNA deletion was detected by PCR in the aortic root of atherosclerosis-prone C57BL/6J apolipoprotein (Apo) E gene deficient (-/-) mice and control C57BL/6J mice at different ages. Atherosclerotic plaques in the Apo E-/- mice were assessed using frozen sections of the aortic root. The protein levels of COX III and 8-oxoguanine glycosylase (OGG1) were determined. RESULTS while mtDNA deletions accumulated significantly in mice as young as 2- month-old, atherosclerotic plaques were not detected until mice were 6 months old or older, suggesting that mtDNA deletion occurs prior to the formation of atherosclerotic plaques in the aortic root of these mice. Moreover, the expression levels of mtDNA-encoded COX III protein in both 2-month-old and 16-month-old C57BL/6J ApoE-/- mice were significantly lower than those in C57BL/6J mice (p<0.05). Additionally, the protein level of 8-oxoguanine glycosylase (OGG1), a mitochondrial enzyme that functions in DNA excision repair, decreased with age in these mice, indicating that age-related down-regulation of mtDNA excision repair also contributes to atherosclerosis in C57BL/6J ApoE-/- mice. CONCLUSION These results reveal that mtDNA deletions occur during the early "initiation" stage of atherosclerosis in C57BL/6J ApoE-/- mice and have the potential to promote atherosclerosis.
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Sazonova MA, Chicheva MM, Zhelankin AV, Sobenin IA, Bobryshev YV, Orekhov AN. Association of mutations in the mitochondrial genome with the subclinical carotid atherosclerosis in women. Exp Mol Pathol 2015; 99:25-32. [PMID: 25910413 DOI: 10.1016/j.yexmp.2015.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 04/18/2015] [Indexed: 01/20/2023]
Abstract
The importance of the study of an association of mitochondrial DNA mutations with asymptomatic atherosclerosis in women is undeniable. In the present study, a series of PCR with primers for mutation region and further amplificate pyrosequencing were carried out to identify point substitutions or microdeletions of the mitochondrial genome. The results obtained were processed using the original method of estimating the level of heteroplasmy. Five mutations in the mitochondrial genome, namely C3256T, G14709A, G12315A, G13513A and G14846A, in which the heteroplasmy level was associated with the degree of preclinical atherosclerosis in women, were identified. The data obtained in the study showed that C3256T, G14709A and G12315A mutations have a positive correlation with atherosclerosis while G13513A and G14846A mutations have a negative correlation with atherosclerotic lesions. Total mutational load of the mitochondrial genome for C3256T, G14709A, G12315A, G13513A and G14846A mutations explains 68% of the variability of thickness of the carotid intima-medial layer, while the complex of traditional risk factors for cardiovascular diseases explains only 8% of the IMT variability. Data on the correlation between heteroplasmy levels of C3256T, G14709A, G12315A, G13513A and G14846A mutations prompt a suggestion that these mutations may be present on the same haplotypes of mitochondrial genome, associated with atherosclerosis.
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Affiliation(s)
- Margarita A Sazonova
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation; Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation
| | - Mariya M Chicheva
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Andrey V Zhelankin
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
| | - Igor A Sobenin
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russian Federation; Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation
| | - Yuri V Bobryshev
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation; Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, Australia; School of Medicine, University of Western Sydney, Campbelltown, NSW, Australia.
| | - Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation; Institute for Atherosclerosis Research, Skolkovo Innovative Centre, Moscow Region, Russian Federation; Department of Biophysics, Biological Faculty, Moscow State University, Moscow, Russian Federation
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Sobenin IA, Zhelankin AV, Sinyov VV, Bobryshev YV, Orekhov AN. Mitochondrial Aging: Focus on Mitochondrial DNA Damage in Atherosclerosis - A Mini-Review. Gerontology 2014; 61:343-9. [DOI: 10.1159/000368923] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 10/08/2014] [Indexed: 11/19/2022] Open
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Kim B, Lee H, Kawata K, Park JY. Exercise-mediated wall shear stress increases mitochondrial biogenesis in vascular endothelium. PLoS One 2014; 9:e111409. [PMID: 25375175 PMCID: PMC4222908 DOI: 10.1371/journal.pone.0111409] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/02/2014] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Enhancing structural and functional integrity of mitochondria is an emerging therapeutic option against endothelial dysfunction. In this study, we sought to investigate the effect of fluid shear stress on mitochondrial biogenesis and mitochondrial respiratory function in endothelial cells (ECs) using in vitro and in vivo complementary studies. METHODS AND RESULTS Human aortic- or umbilical vein-derived ECs were exposed to laminar shear stress (20 dyne/cm2) for various durations using a cone-and-plate shear apparatus. We observed significant increases in the expression of key genes related to mitochondrial biogenesis and mitochondrial quality control as well as mtDNA content and mitochondrial mass under the shear stress conditions. Mitochondrial respiratory function was enhanced when cells were intermittently exposed to laminar shear stress for 72 hrs. Also, shear-exposed cells showed diminished glycolysis and decreased mitochondrial membrane potential (ΔΨm). Likewise, in in vivo experiments, mice that were subjected to a voluntary wheel running exercise for 5 weeks showed significantly higher mitochondrial content determined by en face staining in the conduit (greater and lesser curvature of the aortic arch and thoracic aorta) and muscle feed (femoral artery) arteries compared to the sedentary control mice. Interestingly, however, the mitochondrial biogenesis was not observed in the mesenteric artery. This region-specific adaptation is likely due to the differential blood flow redistribution during exercise in the different vessel beds. CONCLUSION Taken together, our findings suggest that exercise enhances mitochondrial biogenesis in vascular endothelium through a shear stress-dependent mechanism. Our findings may suggest a novel mitochondrial pathway by which a chronic exercise may be beneficial for vascular function.
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Affiliation(s)
- Boa Kim
- Department of Kinesiology, Temple University, Philadelphia, Pennsylvania, United States of America
- Cardiovascular Research Center, Temple University, Philadelphia, Pennsylvania, United States of America
| | - Hojun Lee
- Department of Kinesiology, Temple University, Philadelphia, Pennsylvania, United States of America
| | - Keisuke Kawata
- Department of Kinesiology, Temple University, Philadelphia, Pennsylvania, United States of America
| | - Joon-Young Park
- Department of Kinesiology, Temple University, Philadelphia, Pennsylvania, United States of America
- Cardiovascular Research Center, Temple University, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Pagano G, Aiello Talamanca A, Castello G, Cordero MD, d'Ischia M, Gadaleta MN, Pallardó FV, Petrović S, Tiano L, Zatterale A. Oxidative stress and mitochondrial dysfunction across broad-ranging pathologies: toward mitochondria-targeted clinical strategies. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:541230. [PMID: 24876913 PMCID: PMC4024404 DOI: 10.1155/2014/541230] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 02/24/2014] [Indexed: 02/07/2023]
Abstract
Beyond the disorders recognized as mitochondrial diseases, abnormalities in function and/or ultrastructure of mitochondria have been reported in several unrelated pathologies. These encompass ageing, malformations, and a number of genetic or acquired diseases, as diabetes and cardiologic, haematologic, organ-specific (e.g., eye or liver), neurologic and psychiatric, autoimmune, and dermatologic disorders. The mechanistic grounds for mitochondrial dysfunction (MDF) along with the occurrence of oxidative stress (OS) have been investigated within the pathogenesis of individual disorders or in groups of interrelated disorders. We attempt to review broad-ranging pathologies that involve mitochondrial-specific deficiencies or rely on cytosol-derived prooxidant states or on autoimmune-induced mitochondrial damage. The established knowledge in these subjects warrants studies aimed at elucidating several open questions that are highlighted in the present review. The relevance of OS and MDF in different pathologies may establish the grounds for chemoprevention trials aimed at compensating OS/MDF by means of antioxidants and mitochondrial nutrients.
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Affiliation(s)
- Giovanni Pagano
- Cancer Research Centre at Mercogliano (CROM), Istituto Nazionale Tumori Fondazione G. Pascale-IRCCS, 80131 Naples, Italy
| | - Annarita Aiello Talamanca
- Cancer Research Centre at Mercogliano (CROM), Istituto Nazionale Tumori Fondazione G. Pascale-IRCCS, 80131 Naples, Italy
| | - Giuseppe Castello
- Cancer Research Centre at Mercogliano (CROM), Istituto Nazionale Tumori Fondazione G. Pascale-IRCCS, 80131 Naples, Italy
| | - Mario D. Cordero
- Research Laboratory, Dental School, Sevilla University, 41009 Sevilla, Spain
| | - Marco d'Ischia
- Department of Chemical Sciences, Federico II University, 80126 Naples, Italy
| | - Maria Nicola Gadaleta
- National Research Council, Institute of Biomembranes and Bioenergetics, 70126 Bari, Italy
| | | | - Sandra Petrović
- “Vinca” Institute of Nuclear Sciences, University of Belgrade, 11070 Belgrade, Serbia
| | - Luca Tiano
- Department of Clinical and Dental Sciences, Polytechnical University of Marche, 60100 Ancona, Italy
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Chistiakov DA, Sobenin IA, Revin VV, Orekhov AN, Bobryshev YV. Mitochondrial aging and age-related dysfunction of mitochondria. BIOMED RESEARCH INTERNATIONAL 2014; 2014:238463. [PMID: 24818134 PMCID: PMC4003832 DOI: 10.1155/2014/238463] [Citation(s) in RCA: 267] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/19/2014] [Indexed: 01/06/2023]
Abstract
Age-related changes in mitochondria are associated with decline in mitochondrial function. With advanced age, mitochondrial DNA volume, integrity and functionality decrease due to accumulation of mutations and oxidative damage induced by reactive oxygen species (ROS). In aged subjects, mitochondria are characterized by impaired function such as lowered oxidative capacity, reduced oxidative phosphorylation, decreased ATP production, significant increase in ROS generation, and diminished antioxidant defense. Mitochondrial biogenesis declines with age due to alterations in mitochondrial dynamics and inhibition of mitophagy, an autophagy process that removes dysfunctional mitochondria. Age-dependent abnormalities in mitochondrial quality control further weaken and impair mitochondrial function. In aged tissues, enhanced mitochondria-mediated apoptosis contributes to an increase in the percentage of apoptotic cells. However, implementation of strategies such as caloric restriction and regular physical training may delay mitochondrial aging and attenuate the age-related phenotype in humans.
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Affiliation(s)
- Dimitry A. Chistiakov
- Department of Medical Nanobiotechnology, Pirogov Russian State Medical University, Moscow 117997, Russia
| | - Igor A. Sobenin
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow 121552, Russia
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow 125315, Russia
| | - Victor V. Revin
- Biological Faculty, N.P. Ogaryov Mordovian State University, Saransk 430005, Russia
| | - Alexander N. Orekhov
- Laboratory of Cellular Mechanisms of Atherogenesis, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow 125315, Russia
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow 143025, Russia
| | - Yuri V. Bobryshev
- Biological Faculty, N.P. Ogaryov Mordovian State University, Saransk 430005, Russia
- Faculty of Medicine, University of New South Wales, Sydney, NSW 2052, Australia
- School of Medicine, University of Western Sydney, Campbelltown, NSW 2560, Australia
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Quantitative assessment of heteroplasmy of mitochondrial genome: perspectives in diagnostics and methodological pitfalls. BIOMED RESEARCH INTERNATIONAL 2014; 2014:292017. [PMID: 24818137 PMCID: PMC4003915 DOI: 10.1155/2014/292017] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/14/2014] [Indexed: 11/17/2022]
Abstract
The role of alterations of mitochondrial DNA (mtDNA) in the development of human pathologies is not understood well. Most of mitochondrial mutations are characterized by the phenomenon of heteroplasmy which is defined as the presence of a mixture of more than one type of an organellar genome within a cell or tissue. The level of heteroplasmy varies in wide range, and the expression of disease is dependent on the percent of alleles bearing mutations, thus allowing consumption that an upper threshold level may exist beyond which the mitochondrial function collapses. Recent findings have demonstrated that some mtDNA heteroplasmic mutations are associated with widely spread chronic diseases, including atherosclerosis and cancer. Actually, each etiological mtDNA mutation has its own heteroplasmy threshold that needs to be measured. Therefore, quantitative evaluation of a mutant allele of mitochondrial genome is an obvious methodological challenge, since it may be a keystone for diagnostics of individual genetic predisposition to the disease. This review provides a comprehensive comparison of methods applicable to the measurement of heteroplasmy level of mitochondrial mutations associated with the development of pathology, in particular, in atherosclerosis and its clinical manifestations.
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Lee YL, Liu CE, Cho WL, Kuo CL, Cheng WL, Huang CS, Liu CS. Presence of cytomegalovirus DNA in leucocytes is associated with increased oxidative stress and subclinical atherosclerosis in healthy adults. Biomarkers 2014; 19:109-13. [PMID: 24446591 DOI: 10.3109/1354750x.2013.877967] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Investigate the latent cytomegalovirus (CMV) infection as a biomarker of oxidative stress and atherosclerosis. METHODS Latent CMV infection was diagnosed in healthy individuals with PCR-evidence of CMV DNA in peripheral leucocytes. Oxidative stress and atherosclerosis were measured by mitochondrial DNA oxidative damage index (mtDNA(ΔCT)) and intima media thickness (IMT). RESULTS The CMV DNA positive subjects had a higher mean mtDNA(ΔCT) and greater IMT than subjects in the control group. CONCLUSIONS Presence of CMV DNA in leucocytes, as a marker of latent CMV infection, was associated with increased levels of oxidative stress and subclinical atherosclerosis in healthy adults.
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Affiliation(s)
- Yu-Lin Lee
- Department of Internal Medicine, Division of Infectious Diseases, Changhua Christian Hospital , Changhua , Taiwan
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Horan MP, Cooper DN. The emergence of the mitochondrial genome as a partial regulator of nuclear function is providing new insights into the genetic mechanisms underlying age-related complex disease. Hum Genet 2013; 133:435-58. [DOI: 10.1007/s00439-013-1402-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 11/23/2013] [Indexed: 12/17/2022]
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Cloonan SM, Choi AMK. Mitochondria: sensors and mediators of innate immune receptor signaling. Curr Opin Microbiol 2013; 16:327-38. [PMID: 23757367 PMCID: PMC6010029 DOI: 10.1016/j.mib.2013.05.005] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/06/2013] [Accepted: 05/13/2013] [Indexed: 12/14/2022]
Abstract
By integrating stress signals with inputs from other cellular organelles, eukaryotic mitochondria are dynamic sensing systems that can confer substantial impact on innate immune signaling in both health and disease. This review highlights recently discovered elements of innate immune receptor signaling (TLR, RLR, NLR, and CLR) associated with mitochondrial function and discusses the role of mitochondria in the initiation and/or manifestation of inflammatory diseases and disorders. We also highlight the role of mitochondria as therapeutic targets for inflammatory disease.
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Affiliation(s)
- Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
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