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Jomova K, Alomar SY, Alwasel SH, Nepovimova E, Kuca K, Valko M. Several lines of antioxidant defense against oxidative stress: antioxidant enzymes, nanomaterials with multiple enzyme-mimicking activities, and low-molecular-weight antioxidants. Arch Toxicol 2024; 98:1323-1367. [PMID: 38483584 DOI: 10.1007/s00204-024-03696-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 01/31/2024] [Indexed: 03/27/2024]
Abstract
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are well recognized for playing a dual role, since they can be either deleterious or beneficial to biological systems. An imbalance between ROS production and elimination is termed oxidative stress, a critical factor and common denominator of many chronic diseases such as cancer, cardiovascular diseases, metabolic diseases, neurological disorders (Alzheimer's and Parkinson's diseases), and other disorders. To counteract the harmful effects of ROS, organisms have evolved a complex, three-line antioxidant defense system. The first-line defense mechanism is the most efficient and involves antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx). This line of defense plays an irreplaceable role in the dismutation of superoxide radicals (O2•-) and hydrogen peroxide (H2O2). The removal of superoxide radicals by SOD prevents the formation of the much more damaging peroxynitrite ONOO- (O2•- + NO• → ONOO-) and maintains the physiologically relevant level of nitric oxide (NO•), an important molecule in neurotransmission, inflammation, and vasodilation. The second-line antioxidant defense pathway involves exogenous diet-derived small-molecule antioxidants. The third-line antioxidant defense is ensured by the repair or removal of oxidized proteins and other biomolecules by a variety of enzyme systems. This review briefly discusses the endogenous (mitochondria, NADPH, xanthine oxidase (XO), Fenton reaction) and exogenous (e.g., smoking, radiation, drugs, pollution) sources of ROS (superoxide radical, hydrogen peroxide, hydroxyl radical, peroxyl radical, hypochlorous acid, peroxynitrite). Attention has been given to the first-line antioxidant defense system provided by SOD, CAT, and GPx. The chemical and molecular mechanisms of antioxidant enzymes, enzyme-related diseases (cancer, cardiovascular, lung, metabolic, and neurological diseases), and the role of enzymes (e.g., GPx4) in cellular processes such as ferroptosis are discussed. Potential therapeutic applications of enzyme mimics and recent progress in metal-based (copper, iron, cobalt, molybdenum, cerium) and nonmetal (carbon)-based nanomaterials with enzyme-like activities (nanozymes) are also discussed. Moreover, attention has been given to the mechanisms of action of low-molecular-weight antioxidants (vitamin C (ascorbate), vitamin E (alpha-tocopherol), carotenoids (e.g., β-carotene, lycopene, lutein), flavonoids (e.g., quercetin, anthocyanins, epicatechin), and glutathione (GSH)), the activation of transcription factors such as Nrf2, and the protection against chronic diseases. Given that there is a discrepancy between preclinical and clinical studies, approaches that may result in greater pharmacological and clinical success of low-molecular-weight antioxidant therapies are also subject to discussion.
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Affiliation(s)
- Klaudia Jomova
- Department of Chemistry, Faculty of Natural Sciences, Constantine The Philosopher University in Nitra, Nitra, 949 74, Slovakia
| | - Suliman Y Alomar
- Doping Research Chair, Zoology Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Saleh H Alwasel
- Zoology Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, 50005, Hradec Kralove, Czech Republic
| | - Kamil Kuca
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, 50005, Hradec Kralove, Czech Republic
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Marian Valko
- Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37, Bratislava, Slovakia.
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Chen W, Van Beusecum JP, Xiao L, Patrick DM, Ao M, Zhao S, Lopez MG, Billings FT, Cavinato C, Caulk AW, Humphrey JD, Harrison DG. Role of Axl in target organ inflammation and damage due to hypertensive aortic remodeling. Am J Physiol Heart Circ Physiol 2022; 323:H917-H933. [PMID: 36083796 PMCID: PMC9602715 DOI: 10.1152/ajpheart.00253.2022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 12/14/2022]
Abstract
We have shown that excessive endothelial cell stretch causes release of growth arrest-specific 6 (GAS6), which activates the tyrosine kinase receptor Axl on monocytes and promotes immune activation and inflammation. We hypothesized that GAS6/Axl blockade would reduce renal and vascular inflammation and lessen renal dysfunction in the setting of chronic aortic remodeling. We characterized a model of aortic remodeling in mice following a 2-wk infusion of angiotensin II (ANG II). These mice had chronically increased pulse wave velocity, and their aortas demonstrated increased mural collagen. Mechanical testing revealed a marked loss of Windkessel function that persisted for 6 mo following ANG II infusion. Renal function studies showed a reduced ability to excrete a volume load, a progressive increase in albuminuria, and tubular damage as estimated by periodic acid Schiff staining. Treatment with the Axl inhibitor R428 beginning 2 mo after ANG II infusion had a minimal effect on aortic remodeling 2 mo later but reduced the infiltration of T cells, γ/δ T cells, and macrophages into the aorta and kidney and improved renal excretory capacity, reduced albuminuria, and reduced evidence of renal tubular damage. In humans, circulating Axl+/Siglec6+ dendritic cells and phospho-Axl+ cells correlated with pulse wave velocity and aortic compliance measured by transesophageal echo, confirming chronic activation of the GAS6/Axl pathway. We conclude that brief episodes of hypertension induce chronic aortic remodeling, which is associated with persistent low-grade inflammation of the aorta and kidneys and evidence of renal dysfunction. These events are mediated at least in part by GAS6/Axl signaling and are improved with Axl blockade.NEW & NOTEWORTHY In this study, a brief, 2-wk period of hypertension in mice led to progressive aortic remodeling, an increase in pulse wave velocity, and evidence of renal injury, dysfunction, and albuminuria. This end-organ damage was associated with persistent renal and aortic infiltration of CD8+ and γ/δ T cells. We show that this inflammatory response is likely due to GAS6/Axl signaling and can be ameliorated by blocking this pathway. We propose that the altered microvascular mechanical forces caused by increased pulse wave velocity enhance GAS6 release from the endothelium, which in turn activates Axl on myeloid cells, promoting the end-organ damage associated with aortic stiffening.
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Affiliation(s)
- Wei Chen
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Justin P Van Beusecum
- Ralph H. Johnson Veteran Affairs Medical Center, Charleston, South Carolina
- Division of Nephrology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Liang Xiao
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - David M Patrick
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Veterans Affairs Medical Center, Nashville, Tennessee
| | - Mingfang Ao
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Shilin Zhao
- Vanderbilt Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Marcos G Lopez
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Frederic T Billings
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Cristina Cavinato
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut
| | - Alexander W Caulk
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut
| | - Jay D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut
- Vascular Biology and Therapeutics Program, Yale School of Medicine, New Haven, Connecticut
| | - David G Harrison
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
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Assmann A, Schmidt V, Lepke C, Sugimura Y, Assmann AK, Barth M, Lichtenberg A, Akhyari P. Degeneration of biological heart valve grafts in a rat model of superoxide dismutase-3 deficiency. FASEB J 2022; 36:e22591. [PMID: 36251410 DOI: 10.1096/fj.202200727rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 11/11/2022]
Abstract
While oxidative stress is known as key element in the pathogenesis of atherosclerosis and calcific aortic valve disease, its role in the degeneration of biological cardiovascular grafts has not been clarified yet. Therefore, the present study aimed to examine the impact of oxidative stress on the degeneration of biological cardiovascular allografts in a standardized chronic implantation model realized in rats exhibiting superoxide dismutase 3 deficiency (SOD3(-) ). Rats with SOD3 loss-of-function mutation (n = 24) underwent infrarenal implantation of cryopreserved valved aortic conduits, while SOD3-competent recipients served as controls (n = 28). After a follow-up period of 4 or 12 weeks, comparative analyses addressed degenerative processes, hemodynamics, and evaluation of the oxidative stress model. SOD3(-) rats presented decreased circulating SOD activity (p = .0079). After 12 weeks, 58% of the implant valves in SOD3(-) rats showed regurgitation (vs. 31% in controls, p = .2377). Intima hyperplasia and chondro-osteogenic transformation contributed to progressive graft calcification (p = .0024). At 12 weeks, hydroxyapatite deposition (p = .0198) and the gene expression of runt-related transcription factor-2 (Runx2) (p = .0093) were significantly enhanced in group SOD3(-) . This study provides the first in vivo evidence that impaired systemic antioxidant activity contributes to biological cardiovascular graft degeneration.
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Affiliation(s)
- Alexander Assmann
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - Vera Schmidt
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - Caroline Lepke
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - Yukiharu Sugimura
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - Anna Kathrin Assmann
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - Mareike Barth
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - Artur Lichtenberg
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany.,CARID-Cardiovascular Research Institute Düsseldorf, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
| | - Payam Akhyari
- Department of Cardiac Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Düsseldorf, Germany
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The Molecular Mechanisms of Defective Copper Metabolism in Diabetic Cardiomyopathy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5418376. [PMID: 36238639 PMCID: PMC9553361 DOI: 10.1155/2022/5418376] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/22/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022]
Abstract
Copper is an essential trace metal element that significantly affects human physiology and pathology by regulating various important biological processes, including mitochondrial oxidative phosphorylation, connective tissue crosslinking, and antioxidant defense. Copper level has been proved to be closely related to the morbidity and mortality of cardiovascular diseases such as atherosclerosis, heart failure, and diabetic cardiomyopathy (DCM). Copper deficiency can induce cardiac hypertrophy and aggravate cardiomyopathy, while copper excess can mediate various types of cell death, such as autophagy, apoptosis, cuproptosis, pyroptosis, and cardiac hypertrophy and fibrosis. Both copper excess and copper deficiency lead to redox imbalance, activate inflammatory response, and aggravate diabetic cardiomyopathy. This defective copper metabolism suggests a specific metabolic pattern of copper in diabetes and a specific role in the pathogenesis and progression of DCM. This review is aimed at providing a timely summary of the effects of defective copper homeostasis on DCM and discussing potential underlying molecular mechanisms.
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Oliveira NMC, Machado DA, da Silva TL, do Vale GT. Treatment with Cannabidiol Results in an Antioxidant and Cardioprotective Effect in Several Pathophysiologies. Curr Hypertens Rev 2022; 18:125-129. [PMID: 36508270 DOI: 10.2174/1573402118666220513164101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/15/2022] [Accepted: 03/15/2022] [Indexed: 01/27/2023]
Abstract
Cannabis sativa has chemically active compounds called cannabinoids, where Δ9- tetrahydrocannabinol (THC) and Cannabidiol (CBD) are the major ones responsible for the various pharmacological effects. The endocannabinoid system is an endogenous system considered a unique and widespread homeostatic physiological regulator. It is made up of type 1 (CB1) and type 2 (CB2) cannabinoid receptors. CBD, in turn, has a low affinity for CB1 and CB2 receptors, and regulates the effects arising from THC as a CB1 partial agonist, which are tachycardia, anxiety, and sedation. It also acts as a CB2 inverse agonist, resulting in anti-inflammatory effects. Furthermore, its anticonvulsant, neuroprotective, antipsychotic, antiemetic, anxiolytic, anticancer, and antioxidant effects seem to be linked to other discovered receptors such as GRP55, 5TH1a, TRPV I, TRPV II and the regulation of the intracellular concentration of Ca2+. Regarding oxidative stress, O2- can act as an oxidizing agent, being reduced to hydrogen peroxide (H2O2), or as a reducing agent, donating its extra electron to NO to form peroxynitrite (ONOO-). The ONOO- formed is capable of oxidizing proteins, lipids, and nucleic acids, causing several cell damages. In this sense, CBD can prevent cardiac oxidative damage in many conditions, such as hypertension, diabetes, or even through the cardiotoxic effects induced by chemotherapy, which makes it a potential target for future clinical use to minimize the deleterious effects of many pathophysiologies.
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Affiliation(s)
- Natasha M C Oliveira
- Universidade do Estado de Minas Gerais, Santa Casa de Misericordia de Passos, Passos-MG, Brazil
| | - Dayane A Machado
- Universidade do Estado de Minas Gerais, Santa Casa de Misericordia de Passos, Passos-MG, Brazil
| | - Thauann L da Silva
- Departmento de Odontologia, Centro Universitário de Volta Redonda - UniFOA, Volta Redonda-RJ, Brazil
| | - Gabriel T do Vale
- Universidade do Estado de Minas Gerais, Santa Casa de Misericordia de Passos, Passos-MG, Brazil
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Xiao H, Yan Y, Gu Y, Zhang Y. Strategy for sodium-salt substitution: On the relationship between hypertension and dietary intake of cations. Food Res Int 2022; 156:110822. [PMID: 35650987 DOI: 10.1016/j.foodres.2021.110822] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 10/28/2021] [Accepted: 11/22/2021] [Indexed: 11/04/2022]
Abstract
Chronic diseases, especially cardiovascular diseases (CVD), have become one of the main causes affecting human health. Hypertension is a prominent representative of CVD. The formation and development of hypertension is closely related to people's daily diet. A large number of studies have shown that excessive intake of salt (NaCl) could increase the risk of hypertension. In recent years, more and more investigations have focused on other cations that may be contained in edible salt, exploring whether they have an effect on hypertension and the underlying mechanism. This article focuses on the relationship between four metal elements (potassium, calcium, magnesium, and zinc) and hypertension, by discussing the main metabolic pathway, the impact of diet intake on blood pressure, and especially the regulation mechanisms on blood pressure in detail. At the same time, some opinions and suggestions are put forward, combined with the current hot topics "salt reduction" and "salt substitution".
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Affiliation(s)
- Hongrui Xiao
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Yali Yan
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Yanpei Gu
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Ying Zhang
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, Zhejiang, China.
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Wang CL, Wang Z, Mou JJ, Wang S, Zhao XY, Feng YZ, Xue HL, Wu M, Chen L, Xu JH, Xu LX. Short Photoperiod Reduces Oxidative Stress by Up-Regulating the Nrf2–Keap1 Signaling Pathway in Hamster Kidneys. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022020107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Abdelsaid K, Sudhahar V, Harris RA, Das A, Youn SW, Liu Y, McMenamin M, Hou Y, Fulton D, Hamrick MW, Tang Y, Fukai T, Ushio-Fukai M. Exercise improves angiogenic function of circulating exosomes in type 2 diabetes: Role of exosomal SOD3. FASEB J 2022; 36:e22177. [PMID: 35142393 PMCID: PMC8880294 DOI: 10.1096/fj.202101323r] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 12/29/2021] [Accepted: 01/07/2022] [Indexed: 01/31/2023]
Abstract
Exosomes, key mediators of cell-cell communication, derived from type 2 diabetes mellitus (T2DM) exhibit detrimental effects. Exercise improves endothelial function in part via the secretion of exosomes into circulation. Extracellular superoxide dismutase (SOD3) is a major secretory copper (Cu) antioxidant enzyme that catalyzes the dismutation of O2•- to H2 O2 whose activity requires the Cu transporter ATP7A. However, the role of SOD3 in exercise-induced angiogenic effects of circulating plasma exosomes on endothelial cells (ECs) in T2DM remains unknown. Here, we show that both SOD3 and ATP7A proteins were present in plasma exosomes in mice, which was significantly increased after two weeks of volunteer wheel exercise. A single bout of exercise in humans also showed a significant increase in SOD3 and ATP7A protein expression in plasma exosomes. Plasma exosomes from T2DM mice significantly reduced angiogenic responses in human ECs or mouse skin wound healing models, which was associated with a decrease in ATP7A, but not SOD3 expression in exosomes. Exercise training in T2DM mice restored the angiogenic effects of T2DM exosomes in ECs by increasing ATP7A in exosomes, which was not observed in exercised T2DM/SOD3-/- mice. Furthermore, exosomes overexpressing SOD3 significantly enhanced angiogenesis in ECs by increasing local H2 O2 levels in a heparin-binding domain-dependent manner as well as restored defective wound healing and angiogenesis in T2DM or SOD3-/- mice. In conclusion, exercise improves the angiogenic potential of circulating exosomes in T2DM in a SOD3-dependent manner. Exosomal SOD3 may provide an exercise mimetic therapy that supports neovascularization and wound repair in cardiometabolic disease.
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Affiliation(s)
- Kareem Abdelsaid
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Charlie Norwood Veterans Affairs Medical Center, Augusta, GA
| | - Varadarajan Sudhahar
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, GA,Charlie Norwood Veterans Affairs Medical Center, Augusta, GA
| | | | - Archita Das
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, GA
| | - Seock-Won Youn
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Department of Physiology and Biophysics, University of Illinois, Chicago, IL
| | - Yutao Liu
- Department of cell biology, Medical College of Georgia at Augusta University, Augusta, GA
| | - Maggie McMenamin
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA
| | - Yali Hou
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA
| | - David Fulton
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, GA
| | - Mark W. Hamrick
- Department of cell biology, Medical College of Georgia at Augusta University, Augusta, GA
| | - Yaoliang Tang
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Department of Medicine (Cardiology), Medical College of Georgia at Augusta University, Augusta, GA
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, GA,Charlie Norwood Veterans Affairs Medical Center, Augusta, GA
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA,Department of Medicine (Cardiology), Medical College of Georgia at Augusta University, Augusta, GA
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Liu Y, Miao J. An Emerging Role of Defective Copper Metabolism in Heart Disease. Nutrients 2022; 14:nu14030700. [PMID: 35277059 PMCID: PMC8838622 DOI: 10.3390/nu14030700] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/31/2022] [Accepted: 02/04/2022] [Indexed: 01/02/2023] Open
Abstract
Copper is an essential trace metal element that significantly affects human physiology and pathology by regulating various important biological processes, including mitochondrial oxidative phosphorylation, iron mobilization, connective tissue crosslinking, antioxidant defense, melanin synthesis, blood clotting, and neuron peptide maturation. Increasing lines of evidence obtained from studies of cell culture, animals, and human genetics have demonstrated that dysregulation of copper metabolism causes heart disease, which is the leading cause of mortality in the US. Defects of copper homeostasis caused by perturbed regulation of copper chaperones or copper transporters or by copper deficiency resulted in various types of heart disease, including cardiac hypertrophy, heart failure, ischemic heart disease, and diabetes mellitus cardiomyopathy. This review aims to provide a timely summary of the effects of defective copper homeostasis on heart disease and discuss potential underlying molecular mechanisms.
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Affiliation(s)
- Yun Liu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China;
- Division of Endocrinology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Ji Miao
- Division of Endocrinology, Boston Children’s Hospital, Boston, MA 02115, USA
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
- Correspondence:
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Xu Y, Liang M, Ugbolue UC, Fekete G, Gu Y. Effect of Physical Exercise Under Different Intensity and Antioxidative Supplementation for Plasma Superoxide Dismutase in Healthy Adults: Systematic Review and Network Meta-Analysis. Front Physiol 2022; 13:707176. [PMID: 35185608 PMCID: PMC8850976 DOI: 10.3389/fphys.2022.707176] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 01/14/2022] [Indexed: 01/24/2023] Open
Abstract
Background The dynamic balance between oxidation and anti-oxidation in the body’s internal environment has a significant meaning for human health. Physical exercise and antioxidative supplementation could affect the balance of oxidation and anti-oxidation systems. The evidence on the effects of physical exercise and antioxidative supplementation is mixed. Aims To identify the effects of physical exercise, antioxidative supplementation, and their combination on the dynamic balance between oxidation and anti-oxidation in different subgroups of healthy adults. Methods All studies which reported randomized controlled trials with healthy participants were screened and included from the databases of PubMed, Medline, Embase, and Ovid. All participants were reclassified according to their different daily life activities. All physical exercise interventions were reclassified according to the intensity. The effect size would be calculated in percent or factor units from the mean level change with its associated random-effect variance. Result There were 27 studies included in this review. The agreement between authors by using The Cochrane Collaboration Risk of Bias Assessment Tool reached a kappa-value of 0.72. Maintaining a regular physical exercise routine in an appropriate intensity would be beneficial to the body’s anti-oxidative potential. Anti-oxidative supplementation could have some positive but limited effects on the body’s anti-oxidative status and complex interaction with physical exercise. Conclusion Keeping a regular physical exercise routine and gradually increasing its intensity according to the individual’s daily life activity might be a better choice to maintain and enhancing the body’s antioxidation potential, only using anti-oxidative supplementation is not recommended. More research is needed to explore the best combination protocol. Registration Number CRD42021241995.
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Affiliation(s)
- Yining Xu
- Faculty of Sports Science, Ningbo University, Ningbo, China
| | - Minjun Liang
- Faculty of Sports Science, Ningbo University, Ningbo, China
- *Correspondence: Minjun Liang,
| | - Ukadike C. Ugbolue
- School of Health & Life Sciences, University of the West of Scotland, South Lanarkshire, United Kingdom
- Ukadike C. Ugbolue,
| | - Gusztáv Fekete
- Savaria Institute of Technology, Eötvös Loránd University, Szombathely, Hungary
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo, China
- School of Health & Life Sciences, University of the West of Scotland, South Lanarkshire, United Kingdom
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11
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The L-shaped association between superoxide dismutase levels and blood pressure in older Chinese adults: community-based, cross-sectional study. J Geriatr Cardiol 2022; 19:71-82. [PMID: 35233225 PMCID: PMC8832044 DOI: 10.11909/j.issn.1671-5411.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND As an antioxidant, serum superoxide dismutase (SOD) have been found to be associated with hypertension. METHODS The data were derived from the Chinese Longitudinal Healthy Longevity Survey (CLHLS), a prospective cohort study in China. We explored the association between serum SOD and blood pressure (BP) using multivariable correction analysis in an older Chinese population. RESULTS We observed a significantly gradual downward trend in the association between serum SOD levels and diastolic BP (DBP) in participants with lower serum SOD levels (< 58 IU/mL), while no associations were observed between serum SOD levels and DBP in participants with higher serum SOD levels (> 58 IU/mL). Similar results showed a significant gradual downward trend in associations between serum SOD levels and the risk of diastolic hypertension only at SOD < 58 IU/mL. Multiple linear regression analysis suggested that serum SOD was negatively correlated with DBP (Sβ = -0.088,P < 0.001) but not with SBP (Sβ = 0.013, P = 0.607). Multiple logistic regression analysis suggested that serum SOD was independently associated with the risk of diastolic hypertension (OR = 0.984, 95% CI: 0.973-0.996, P = 0.010) but not with the risk of systolic hypertension (OR = 1.001, 95% CI: 0.990-1.012,P = 0.836)) after adjusting for relevant confounding factors. Serum SOD levels (< 58 IU/mL, > 58 IU/mL) were an effect modifier of the association between serum SOD and DBP (interactionP = 0.0038) or the risk of diastolic hypertension (interaction P = 0.0050). CONCLUSIONS Our study indicated for the first time that there was an L-shaped association between serum SOD levels and the risk of diastolic hypertension in the older Chinese population.
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Aramide Modupe Dosunmu-Ogunbi A, Galley JC, Yuan S, Schmidt HM, Wood KC, Straub AC. Redox Switches Controlling Nitric Oxide Signaling in the Resistance Vasculature and Implications for Blood Pressure Regulation: Mid-Career Award for Research Excellence 2020. Hypertension 2021; 78:912-926. [PMID: 34420371 DOI: 10.1161/hypertensionaha.121.16493] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The arterial resistance vasculature modulates blood pressure and flow to match oxygen delivery to tissue metabolic demand. As such, resistance arteries and arterioles have evolved a series of highly orchestrated cell-cell communication mechanisms between endothelial cells and vascular smooth muscle cells to regulate vascular tone. In response to neurohormonal agonists, release of several intracellular molecules, including nitric oxide, evokes changes in vascular tone. We and others have uncovered novel redox switches in the walls of resistance arteries that govern nitric oxide compartmentalization and diffusion. In this review, we discuss our current understanding of redox switches controlling nitric oxide signaling in endothelial and vascular smooth muscle cells, focusing on new mechanistic insights, physiological and pathophysiological implications, and advances in therapeutic strategies for hypertension and other diseases.
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Affiliation(s)
- Atinuke Aramide Modupe Dosunmu-Ogunbi
- Heart, Lung, Blood and Vascular Medicine Institute (A.A.M.D.-O., J.C.G., S.Y., H.M.S., K.C.W., A.C.S.), University of Pittsburgh, PA.,Department of Pharmacology and Chemical Biology (A.A.M.D.-O., J.C.G., H.M.S., A.C.S), University of Pittsburgh, PA
| | - Joseph C Galley
- Heart, Lung, Blood and Vascular Medicine Institute (A.A.M.D.-O., J.C.G., S.Y., H.M.S., K.C.W., A.C.S.), University of Pittsburgh, PA.,Department of Pharmacology and Chemical Biology (A.A.M.D.-O., J.C.G., H.M.S., A.C.S), University of Pittsburgh, PA
| | - Shuai Yuan
- Heart, Lung, Blood and Vascular Medicine Institute (A.A.M.D.-O., J.C.G., S.Y., H.M.S., K.C.W., A.C.S.), University of Pittsburgh, PA
| | - Heidi M Schmidt
- Heart, Lung, Blood and Vascular Medicine Institute (A.A.M.D.-O., J.C.G., S.Y., H.M.S., K.C.W., A.C.S.), University of Pittsburgh, PA.,Department of Pharmacology and Chemical Biology (A.A.M.D.-O., J.C.G., H.M.S., A.C.S), University of Pittsburgh, PA
| | - Katherine C Wood
- Heart, Lung, Blood and Vascular Medicine Institute (A.A.M.D.-O., J.C.G., S.Y., H.M.S., K.C.W., A.C.S.), University of Pittsburgh, PA
| | - Adam C Straub
- Heart, Lung, Blood and Vascular Medicine Institute (A.A.M.D.-O., J.C.G., S.Y., H.M.S., K.C.W., A.C.S.), University of Pittsburgh, PA.,Department of Pharmacology and Chemical Biology (A.A.M.D.-O., J.C.G., H.M.S., A.C.S), University of Pittsburgh, PA.,Center for Microvascular Research (A.C.S.), University of Pittsburgh, PA
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13
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Impact of EcSOD Perturbations in Cancer Progression. Antioxidants (Basel) 2021; 10:antiox10081219. [PMID: 34439467 PMCID: PMC8388922 DOI: 10.3390/antiox10081219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 01/29/2023] Open
Abstract
Reactive oxygen species (ROS) are a normal byproduct of cellular metabolism and are required components in cell signaling and immune responses. However, an imbalance of ROS can lead to oxidative stress in various pathological states. Increases in oxidative stress are one of the hallmarks in cancer cells, which display an altered metabolism when compared to corresponding normal cells. Extracellular superoxide dismutase (EcSOD) is an antioxidant enzyme that catalyzes the dismutation of superoxide anion (O2−) in the extracellular environment. By doing so, this enzyme provides the cell with a defense against oxidative damage by contributing to redox balance. Interestingly, EcSOD expression has been found to be decreased in a variety of cancers, and this loss of expression may contribute to the development and progression of malignancies. In addition, recent compounds can increase EcSOD activity and expression, which has the potential for altering this redox signaling and cellular proliferation. This review will explore the role that EcSOD expression plays in cancer in order to better understand its potential as a tool for the detection, predicted outcomes and potential treatment of malignancies.
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14
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Shiraishi Y, Ishigami N, Kujiraoka T, Sato A, Fujita M, Ido Y, Adachi T. Deletion of Superoxide Dismutase 1 Blunted Inflammatory Aortic Remodeling in Hypertensive Mice under Angiotensin II Infusion. Antioxidants (Basel) 2021; 10:antiox10030471. [PMID: 33809716 PMCID: PMC8002308 DOI: 10.3390/antiox10030471] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/11/2021] [Accepted: 03/15/2021] [Indexed: 02/05/2023] Open
Abstract
Superoxide dismutase (SOD) is an enzyme that catalyzes the dismutation of two superoxide anions (O2·−) into hydrogen peroxide (H2O2) and oxygen (O2) and is generally known to protect against oxidative stress. Angiotensin II (AngII) causes vascular hypertrophic remodeling which is associated with H2O2 generation. The aim of this study is to investigate the role of cytosolic SOD (SOD1) in AngII-induced vascular hypertrophy. We employed C57/BL6 mice (WT) and SOD1 deficient mice (SOD1−/−) with the same background. They received a continuous infusion of saline or AngII (3.2 mg/kg/day) for seven days. The blood pressures were equally elevated at 1.5 times with AngII, however, vascular hypertrophy was blunted in SOD1−/− mice compared to WT mice (WT mice 91.9 ± 1.13 µm versus SOD1−/− mice 68.4 ± 1.41 µm p < 0.001). The elevation of aortic interleukin 6 (IL-6) and phosphorylation of pro-inflammatory STAT3 due to AngII were also blunted in SOD1−/− mice’s aortas. In cultured rat vascular smooth muscle cells (VSMCs), reducing expression of SOD1 with siRNA decreased AngII induced IL-6 release as well as phosphorylation of STAT3. Pre-incubation with polyethylene glycol (PEG)-catalase also attenuated phosphorylation of STAT3 due to AngII. These results indicate that SOD1 in VSMCs plays a role in vascular hypertrophy due to increased inflammation caused by AngII, probably via the production of cytosolic H2O2.
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Affiliation(s)
- Yasunaga Shiraishi
- Division of Environmental Medicine, National Defense Medical College Research Institute, 3-2 Namiki, Tokorozawa Saitama 359-8513, Japan;
- Correspondence: ; Tel.: +81-4-2995-1626
| | - Norio Ishigami
- Department of Internal Medicine, Division of Cardiovascular Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa Saitama 359-8513, Japan; (N.I.); (T.K.); (A.S.); (Y.I.); (T.A.)
| | - Takehiko Kujiraoka
- Department of Internal Medicine, Division of Cardiovascular Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa Saitama 359-8513, Japan; (N.I.); (T.K.); (A.S.); (Y.I.); (T.A.)
| | - Atsushi Sato
- Department of Internal Medicine, Division of Cardiovascular Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa Saitama 359-8513, Japan; (N.I.); (T.K.); (A.S.); (Y.I.); (T.A.)
| | - Masanori Fujita
- Division of Environmental Medicine, National Defense Medical College Research Institute, 3-2 Namiki, Tokorozawa Saitama 359-8513, Japan;
| | - Yasuo Ido
- Department of Internal Medicine, Division of Cardiovascular Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa Saitama 359-8513, Japan; (N.I.); (T.K.); (A.S.); (Y.I.); (T.A.)
| | - Takeshi Adachi
- Department of Internal Medicine, Division of Cardiovascular Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa Saitama 359-8513, Japan; (N.I.); (T.K.); (A.S.); (Y.I.); (T.A.)
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15
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Mohammed SA, Paramesha B, Meghwani H, Kumar Reddy MP, Arava SK, Banerjee SK. Allyl Methyl Sulfide Preserved Pressure Overload-Induced Heart Failure Via Modulation of Mitochondrial Function. Biomed Pharmacother 2021; 138:111316. [PMID: 33684689 DOI: 10.1016/j.biopha.2021.111316] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/15/2021] [Accepted: 01/21/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Cardiovascular diseases are the leading cause of death globally, and they are causing enormous socio-economic burden to the developed and developing countries. Allyl Methyl Sulfide (AMS) is a novel cardioprotective metabolite identified in the serum of rats after raw garlic administration. The present study explored the cardioprotective effect of AMS on thoracic aortic constriction (TAC)-induced cardiac hypertrophy and heart failure model in rats. METHODS Thoracic aortic constriction (TAC) by titanium ligating clips resulted in the development of pressure overload-induced cardiac hypertrophy and heart failure model. Four weeks prior to TAC and for 8 weeks after TAC, Sprague Dawley (SD) rats were administered with AMS (25 and 50 mg/kg/day) or Enalapril (10 mg/kg/day). RESULTS We have observed AMS (25 and 50 mg/kg/day) intervention significantly improved structural and functional parameters of the heart. mRNA expression of fetal genes i.e., atrial natriuretic peptide (ANP), alpha skeletal actin (α-SA) and beta myosin heavy chain (β-MHC) were reduced in AMS treated TAC hearts along with decrease in perivascular and interstitial fibrosis. AMS attenuated lipid peroxidation and improved protein expression of endogenous antioxidant enzymes i.e., catalase and manganese superoxide dismutase (MnSOD) along with electron transport chain (ETC) complex activity. AMS increased mitochondrial fusion proteins i.e., mitofusin 1 (MFN1), mitofusin 2 (MFN2) and optic atrophy protein (OPA1), and reduced fission protein i.e., dynamin-related protein 1 (DRP1). Preliminary study suggests that AMS intervention upregulated genes involved in mitochondrial bioenergetics in normal rats. Further, in-vitro studies suggest that AMS reduced mitochondrial reactive oxygen species (ROS), preserved mitochondrial membrane potential and oxygen consumption rate (OCR) in isoproterenol-treated cardiomyoblast. CONCLUSION This study demonstrated that AMS protected cardiac remodelling, LV dysfunction and fibrosis in pressure overload-induced cardiac hypertrophy and heart failure model by improving endogenous antioxidants and mitochondrial function.
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Affiliation(s)
- Soheb Anwar Mohammed
- Non-Communicable Diseases Group, Translational Health Science and Technology Institute (THSTI), Faridabad, 121001, India.
| | - Bugga Paramesha
- Non-Communicable Diseases Group, Translational Health Science and Technology Institute (THSTI), Faridabad, 121001, India.
| | | | - Maramreddy Prasanna Kumar Reddy
- Cardio-Respiratory Division, Defence Institute of Physiology and Allied Sciences (DIPAS), Defense Research and Development Organization (DRDO), Timarpur, Delhi, India.
| | - Sudheer Kumar Arava
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - Sanjay Kumar Banerjee
- Non-Communicable Diseases Group, Translational Health Science and Technology Institute (THSTI), Faridabad, 121001, India; Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, 781101, India.
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16
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Sudhahar V, Okur MN, O'Bryan JP, Minshall RD, Fulton D, Ushio-Fukai M, Fukai T. Caveolin-1 stabilizes ATP7A, a copper transporter for extracellular SOD, in vascular tissue to maintain endothelial function. Am J Physiol Cell Physiol 2020; 319:C933-C944. [PMID: 32936699 PMCID: PMC7789967 DOI: 10.1152/ajpcell.00151.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 12/31/2022]
Abstract
Caveolin-1 (Cav-1) is a scaffolding protein and a major component of caveolae/lipid rafts. Previous reports have shown that endothelial dysfunction in Cav-1-deficient (Cav-1-/-) mice is mediated by elevated oxidative stress through endothelial nitric oxide synthase (eNOS) uncoupling and increased NADPH oxidase. Oxidant stress is the net balance of oxidant generation and scavenging, and the role of Cav-1 as a regulator of antioxidant enzymes in vascular tissue is poorly understood. Extracellular SOD (SOD3) is a copper (Cu)-containing enzyme that is secreted from vascular smooth muscle cells/fibroblasts and subsequently binds to the endothelial cells surface, where it scavenges extracellular [Formula: see text] and preserves endothelial function. SOD3 activity is dependent on Cu, supplied by the Cu transporter ATP7A, but whether Cav-1 regulates the ATP7A-SOD3 axis and its role in oxidative stress-mediated vascular dysfunction has not been studied. Here we show that the activity of SOD3, but not SOD1, was significantly decreased in Cav-1-/- vessels, which was rescued by re-expression of Cav-1 or Cu supplementation. Loss of Cav-1 reduced ATP7A protein, but not mRNA, and this was mediated by ubiquitination of ATP7A and proteasomal degradation. ATP7A bound to Cav-1 and was colocalized with SOD3 in caveolae/lipid rafts or perinucleus in vascular tissues or cells. Impaired endothelium-dependent vasorelaxation in Cav-1-/- mice was rescued by gene transfer of SOD3 or by ATP7A-overexpressing transgenic mice. These data reveal an unexpected role of Cav-1 in stabilizing ATP7A protein expression by preventing its ubiquitination and proteasomal degradation, thereby increasing SOD3 activity, which in turn protects against vascular oxidative stress-mediated endothelial dysfunction.
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Affiliation(s)
- Varadarajan Sudhahar
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia
- Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia
- Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
| | - Mustafa Nazir Okur
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - John P O'Bryan
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Hollings Cancer Center, Medical University of South Carolina, Charleston, South Carolina
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina
| | - Richard D Minshall
- Departments of Anesthesiology and Pharmacology, University of Illinois at Chicago, Chicago, Illinois
| | - David Fulton
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia
- Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia
- Department of Medicine (Cardiology), Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia
- Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia
- Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
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17
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Myeloperoxidase: A versatile mediator of endothelial dysfunction and therapeutic target during cardiovascular disease. Pharmacol Ther 2020; 221:107711. [PMID: 33137376 DOI: 10.1016/j.pharmthera.2020.107711] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 10/01/2020] [Indexed: 02/06/2023]
Abstract
Myeloperoxidase (MPO) is a prominent mammalian heme peroxidase and a fundamental component of the innate immune response against microbial pathogens. In recent times, MPO has received considerable attention as a key oxidative enzyme capable of impairing the bioactivity of nitric oxide (NO) and promoting endothelial dysfunction; a clinically relevant event that manifests throughout the development of inflammatory cardiovascular disease. Increasing evidence indicates that during cardiovascular disease, MPO is released intravascularly by activated leukocytes resulting in its transport and sequestration within the vascular endothelium. At this site, MPO catalyzes various oxidative reactions that are capable of promoting vascular inflammation and impairing NO bioactivity and endothelial function. In particular, MPO catalyzes the production of the potent oxidant hypochlorous acid (HOCl) and the catalytic consumption of NO via the enzyme's NO oxidase activity. An emerging paradigm is the ability of MPO to also influence endothelial function via non-catalytic, cytokine-like activities. In this review article we discuss the implications of our increasing knowledge of the versatility of MPO's actions as a mediator of cardiovascular disease and endothelial dysfunction for the development of new pharmacological agents capable of effectively combating MPO's pathogenic activities. More specifically, we will (i) discuss the various transport mechanisms by which MPO accumulates into the endothelium of inflamed or diseased arteries, (ii) detail the clinical and basic scientific evidence identifying MPO as a significant cause of endothelial dysfunction and cardiovascular disease, (iii) provide an up-to-date coverage on the different oxidative mechanisms by which MPO can impair endothelial function during cardiovascular disease including an evaluation of the contributions of MPO-catalyzed HOCl production and NO oxidation, and (iv) outline the novel non-enzymatic mechanisms of MPO and their potential contribution to endothelial dysfunction. Finally, we deliver a detailed appraisal of the different pharmacological strategies available for targeting the catalytic and non-catalytic modes-of-action of MPO in order to protect against endothelial dysfunction in cardiovascular disease.
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18
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Chronic Mercury Exposure in Prehypertensive SHRs Accelerates Hypertension Development and Activates Vasoprotective Mechanisms by Increasing NO and H 2O 2 Production. Cardiovasc Toxicol 2020; 20:197-210. [PMID: 31338744 DOI: 10.1007/s12012-019-09545-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Mercury is a heavy metal associated with cardiovascular diseases. Studies have reported increased vascular reactivity without changes in systolic blood pressure (SBP) after chronic mercury chloride (HgCl2) exposure, an inorganic form of the metal, in normotensive rats. However, we do not know whether individuals in the prehypertensive phase, such as young spontaneously hypertensive rats (SHRs), are susceptible to increased arterial blood pressure. We investigated whether chronic HgCl2 exposure in young SHRs accelerates hypertension development by studying the vascular function of mesenteric resistance arteries (MRAs) and SBP in young SHRs during the prehypertensive phase. Four-week-old male SHRs were divided into two groups: the SHR control group (vehicle) and the SHR HgCl2 group (4 weeks of exposure). The results showed that HgCl2 treatment accelerated the development of hypertension; reduced vascular reactivity to phenylephrine in MRAs; increased nitric oxide (NO) generation; promoted vascular dysfunction by increasing the production of reactive oxygen species (ROS), such as hydrogen peroxide (H2O2); increased Gp91Phox protein levels and in situ levels of superoxide anion (O2·-); and reduced vasoconstrictor prostanoid production compared to vehicle treatment. Although HgCl2 accelerated the development of hypertension, the HgCl2-exposed animals also exhibited a vasoprotective mechanism to counterbalance the rapid increase in SBP by decreasing vascular reactivity through H2O2 and NO overproduction. Our results suggest that HgCl2 exposure potentiates this vasoprotective mechanism against the early establishment of hypertension. Therefore, we are concluding that chronic exposure to HgCl2 in prehypertensive animals could enhance the risk for cardiovascular diseases.
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19
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Yan Z, Spaulding HR. Extracellular superoxide dismutase, a molecular transducer of health benefits of exercise. Redox Biol 2020; 32:101508. [PMID: 32220789 PMCID: PMC7109453 DOI: 10.1016/j.redox.2020.101508] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 02/06/2023] Open
Abstract
Extracellular superoxide dismutase (EcSOD) is the only extracellular scavenger of superoxide anion (O2.-) with unique binding capacity to cell surface and extracellular matrix through its heparin-binding domain. Enhanced EcSOD activity prevents oxidative stress and damage, which are fundamental in a variety of disease pathologies. In this review we will discuss the findings in humans and animal studies supporting the benefits of EcSOD induced by exercise training in reducing oxidative stress in various tissues. In particularly, we will highlight the importance of skeletal muscle EcSOD, which is induced by endurance exercise and redistributed through the circulation to the peripheral tissues, as a molecular transducer of exercise training to confer protection against oxidative stress and damage in various disease conditions.
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Affiliation(s)
- Zhen Yan
- Center for Skeletal Muscle Research at Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA; Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA; Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA; Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA.
| | - Hannah R Spaulding
- Center for Skeletal Muscle Research at Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA
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20
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Fawaz YB, Matta JM, Moustafa ME. Effects of selenium supplementation on lung oxidative stress after exposure to exhaust emissions from pyrolysis oil, biodiesel and diesel. Toxicol Mech Methods 2019; 29:616-622. [PMID: 31237464 DOI: 10.1080/15376516.2019.1636441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The exposure to exhaust emissions from fuels as diesel and pyrolysis oil may result in adverse effects on human lungs. This study investigated the effects of exposing mice to the exhaust emissions from diesel, biodiesel or pyrolysis oil, for 1 hour/day for 3 days, on lung oxidative stress and whether selenium administration into these mice affects the oxidative stress. The levels of lung malondialdehyde and nitric oxide were increased after exposure to pyrolysis oil exhaust. The intraperitoneal injection of 1.78 μg selenium/kg body weight 15 minutes before the exposure to the pyrolysis oil exhaust (pyrolysis oil + selenium group) restored the normal levels of malondialdehyde and nitric oxide. The catalase and SOD activities were decreased in the groups of the mice exposed to the exhaust emissions from pyrolysis oil, biodiesel or diesel. Selenium pretreatment of these groups showed no significant change in the activities of both enzymes. In conclusion, the increased lung levels of malondialdehyde and nitric oxide after the exposure to the exhaust emission from pyrolysis oil were restored to normal by selenium administration.
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Affiliation(s)
- Youssef B Fawaz
- Department of Biological Sciences, Faculty of Science, Beirut Arab University , Beirut , Lebanon
| | - Joseph M Matta
- Industrial Research Institute, Lebanese University Campus , Hadath , Lebanon.,Department of Nutrition, Faculty of Pharmacy, Saint Joseph University , Beirut , Lebanon
| | - Mohamed E Moustafa
- Department of Biochemistry, Faculty of Science, Alexandria University , Alexandria , Egypt
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21
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Scicchitano P, Cortese F, Gesualdo M, De Palo M, Massari F, Giordano P, Ciccone MM. The role of endothelial dysfunction and oxidative stress in cerebrovascular diseases. Free Radic Res 2019; 53:579-595. [PMID: 31106620 DOI: 10.1080/10715762.2019.1620939] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Pietro Scicchitano
- Department of Cardiology, Hospital “F. Perinei”, Altamura, Italy
- Section of Cardiovascular Diseases, Department of Emergency and Organ Transplantation, School of Medicine, University of Bari, Bari, Italy
| | - Francesca Cortese
- Section of Cardiovascular Diseases, Department of Emergency and Organ Transplantation, School of Medicine, University of Bari, Bari, Italy
| | | | - Micaela De Palo
- Department of Cardiac Surgery, Mater Dei Hospital, Bari, Italy
| | | | - Paola Giordano
- Department of Biomedical Sciences and Human Oncology – Paediatric Unit, Policlinico Hospital, Bari, Italy
| | - Marco Matteo Ciccone
- Section of Cardiovascular Diseases, Department of Emergency and Organ Transplantation, School of Medicine, University of Bari, Bari, Italy
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22
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Li C, Li Y, Zhao Z, Lv Y, Gu B, Zhao L. Aerobic exercise regulates synaptic transmission and reactive oxygen species production in the paraventricular nucleus of spontaneously hypertensive rats. Brain Res 2019; 1712:82-92. [PMID: 30735639 DOI: 10.1016/j.brainres.2019.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 01/29/2019] [Accepted: 02/04/2019] [Indexed: 02/07/2023]
Abstract
Aerobic exercise lowers blood pressure in patients with hypertension, but the underlying mechanisms remain incompletely understood. The hypothalamic paraventricular nucleus (PVN) plays a key role in the control of sympathetic outflow and cardiovascular tone. We examined whether chronic aerobic exercise altered synaptic transmission and reactive oxygen species (ROS) production in the PVN. In the present study, spontaneously hypertensive rats (SHRs) were subjected to exercise training for 8 weeks, five times per week, with Wistar Kyoto (WKY) rats as the cohort control. Miniature excitatory and inhibitory postsynaptic currents (mEPSCs and mIPSCs) were recorded from the PVN in ex vivo hypothalamic slice preparations obtained after the last training, and biomarkers of oxidative stress and physical indexes were observed. The mean frequency and amplitude, as well as the rise time and the decay time constant of mIPSCs, significantly decreased in 20-wk-old SHRs compared to WKY 20-wk-old controls. In contrast to mIPSCs, only the mean mEPSC frequency was higher, and there were no other changes in mEPSCs in comparison to the control group. SHRs exhibited higher ROS, 8-OHdG, and MDA; and lower SOD1, SOD2, CAT, Ogg1, and SOD and CAT activity in the PVN. These SHRs also had a significant increase in heart rate, blood pressure and sympathetic nerve activity, and higher levels of norepinephrine (NE). Exercise training ameliorated all these abnormalities, resulting in an increase in the mean frequency, amplitude and kinetics of mIPSCs, accompanied by a decrease in the mean frequency of mEPSCs in the PVN. This study demonstrates that moderate intensity, high frequency exercise training induces a selective enhancement of inhibitory synaptic transmission in the PVN, which may dampen sympathetic activity and reduce blood pressure in hypertension. These changes may be due to antioxidant-related adaptations in the PVNs of SHRs.
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Affiliation(s)
- Cui Li
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Yan Li
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Ziqi Zhao
- College of Life Science, University of Chinese Academy of Science, Beijing, China
| | - Yuanyuan Lv
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
| | - Boya Gu
- Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
| | - Li Zhao
- Department of Exercise Physiology, Beijing Sport University, Beijing, China; Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China.
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23
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Forrester SJ, Booz GW, Sigmund CD, Coffman TM, Kawai T, Rizzo V, Scalia R, Eguchi S. Angiotensin II Signal Transduction: An Update on Mechanisms of Physiology and Pathophysiology. Physiol Rev 2018; 98:1627-1738. [PMID: 29873596 DOI: 10.1152/physrev.00038.2017] [Citation(s) in RCA: 614] [Impact Index Per Article: 102.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The renin-angiotensin-aldosterone system plays crucial roles in cardiovascular physiology and pathophysiology. However, many of the signaling mechanisms have been unclear. The angiotensin II (ANG II) type 1 receptor (AT1R) is believed to mediate most functions of ANG II in the system. AT1R utilizes various signal transduction cascades causing hypertension, cardiovascular remodeling, and end organ damage. Moreover, functional cross-talk between AT1R signaling pathways and other signaling pathways have been recognized. Accumulating evidence reveals the complexity of ANG II signal transduction in pathophysiology of the vasculature, heart, kidney, and brain, as well as several pathophysiological features, including inflammation, metabolic dysfunction, and aging. In this review, we provide a comprehensive update of the ANG II receptor signaling events and their functional significances for potential translation into therapeutic strategies. AT1R remains central to the system in mediating physiological and pathophysiological functions of ANG II, and participation of specific signaling pathways becomes much clearer. There are still certain limitations and many controversies, and several noteworthy new concepts require further support. However, it is expected that rigorous translational research of the ANG II signaling pathways including those in large animals and humans will contribute to establishing effective new therapies against various diseases.
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Affiliation(s)
- Steven J Forrester
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - George W Booz
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Curt D Sigmund
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Thomas M Coffman
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
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24
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Zelko IN, Zhu J, Roman J. Role of SOD3 in silica-related lung fibrosis and pulmonary vascular remodeling. Respir Res 2018; 19:221. [PMID: 30453980 PMCID: PMC6245633 DOI: 10.1186/s12931-018-0933-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/07/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Work-place exposure to silica dust may lead to progressive lung inflammation culminating in the development of silicosis, an irreversible condition that can be complicated by onset of pulmonary hypertension (PH). The molecular mechanisms leading to the development of PH and lung fibrosis in response to silica are not well understood. Oxidant/antioxidant imbalance in the lung may promote fibroproliferation and vascular smooth muscle proliferation, ultimately leading to the development of PH. Herein, we analyze the development of PH and lung fibrosis in mice deficient in extracellular superoxide dismutase (SOD3), an enzyme with anti-oxidant activity. METHODS PH and silicosis were induced in wild-type and Sod3-/- mice through intratracheal injection of crystalline silica at dose 0.4 g/kg. Pulmonary hypertension and lung fibrosis were characterized by changes in right ventricular systolic pressure (RVSP) and collagen deposition 28 days following silica injections. Vascular remodeling was analyzed using immunohistochemistry and morphometric analysis. The expression of genes were analyzed using qRT-PCR and Western blot. RESULTS C57BL6 mice exposed to silica showed attenuated expression of Sod3 in the lung suggesting a protective role for Sod3. Consistent with this, Sod3-/- mice developed more severe fibrotic inflammatory nodules with increased collagen deposition. Furthermore, the expression of genes involved in tissue remodeling (Timp1), fibrotic lesion formation (Fsp1) and inflammatory response (Mcp1) were significantly elevated in Sod3-/- mice compared to Sod3+/+ mice treated with silica. Infiltration of neutrophils and activated macrophages into affected lung was significantly higher in Sod3 deficient mice. In addition, silica produced more profound effects on elevation of RVSP in Sod3-/- compared to wild-type littermate. Increase in RVSP was concomitant with hypertrophy of pulmonary arteries located in silicotic nodules of both mouse strains, however, vascular remodeling in unaffected areas of lung was detected only in Sod3-/- mice. CONCLUSIONS Our data suggest that Sod3 and extracellular oxidative stress may play an important role in the development of pneumoconiosis and pulmonary vascular remodeling following exposure to environmental and occupational silica.
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Affiliation(s)
- Igor N Zelko
- Department of Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, University of Louisville, 505 S. Hancock Street, CTR Bldg., room 524, Louisville, KY, 40202, USA.
- Department of Biochemistry and Molecular Genetics, University of Louisville, 505 S. Hancock Street, CTR Bldg., room 524, Louisville, KY, 40202, USA.
| | - Jianxin Zhu
- Department of Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, University of Louisville, 505 S. Hancock Street, CTR Bldg., room 524, Louisville, KY, 40202, USA
| | - Jesse Roman
- Department of Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, University of Louisville, 505 S. Hancock Street, CTR Bldg., room 524, Louisville, KY, 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY, 40202, USA
- Robley Rex VA Medical Center, Louisville, KY, 40202, USA
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25
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Kang KT, Sullivan JC, Pollock JS. Superoxide Dismutase Activity in Small Mesenteric Arteries Is Downregulated by Angiotensin II but Not by Hypertension. Toxicol Res 2018; 34:363-370. [PMID: 30370011 PMCID: PMC6195877 DOI: 10.5487/tr.2018.34.4.363] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/09/2018] [Accepted: 09/10/2018] [Indexed: 01/14/2023] Open
Abstract
Many studies reported reduced antioxidant capacity in the vasculature under hypertensive conditions. However, little is known about the effects of antihypertensive treatments on the regulation of vascular antioxidant enzymes. Thus, we hypothesized that antihypertensive treatments prevent the reduction of antioxidant enzyme activity and expression in the small vessels of angiotensin II-induced hypertensive rats (ANG). We observed the small mesenteric arteries and small renal vessels of normotensive rats (NORM), ANG, and ANG treated with a triple antihypertensive therapy of reserpine, hydrochlorothiazide, and hydralazine (ANG + TTx). Systolic blood pressure was increased in ANG, which was attenuated by 2 weeks of triple therapy (127, 191, and 143 mmHg for NORM, ANG, and ANG + TTx, respectively; p < 0.05). Total superoxide dismutase (SOD) activity in the small mesenteric arteries of ANG was lower than that of NORM. The protein expression of SOD1 was lower in ANG than in NORM, whereas SOD2 and SOD3 expression was not different between the groups. Reduced SOD activity and SOD1 expression in ANG was not restored in ANG + TTx. Both SOD activity and SOD isoform expression in the small renal vessels of ANG were not different from those of NORM. Interestingly, SOD activity in the small renal vessels was reduced by TTx. Between groups, there was no difference in catalase activity or expression in both the small mesenteric arteries and small renal vessels. In conclusion, SOD activity in the small mesenteric arteries decreased by angiotensin II administration, but not by hypertension, which is caused by decreased SOD1 expression.
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Affiliation(s)
- Kyu-Tae Kang
- College of Pharmacy, Duksung Innovative Drug Center, Duksung Women's University, Seoul, Korea
| | - Jennifer C Sullivan
- Department of Physiology, Augusta University, Augusta, GA, USA.,Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Jennifer S Pollock
- Medical College of Georgia, Augusta University, Augusta, GA, USA.,Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
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26
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Suliburska J, Skrypnik K, Szulińska M, Kupsz J, Markuszewski L, Bogdański P. Diuretics, Ca-Antagonists, and Angiotensin-Converting Enzyme Inhibitors Affect Zinc Status in Hypertensive Patients on Monotherapy: A Randomized Trial. Nutrients 2018; 10:nu10091284. [PMID: 30208601 PMCID: PMC6164079 DOI: 10.3390/nu10091284] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 08/29/2018] [Accepted: 09/09/2018] [Indexed: 02/07/2023] Open
Abstract
Background: Antihypertensive drugs affect mineral metabolism, inflammation, and the oxidative state. The aim of this study was to evaluate the effects of antihypertensive monopharmacotherapy with diuretics, β-blockers, calcium antagonists (Ca-antagonists), angiotensin-converting enzyme inhibitors (ACE-I), and angiotensin II receptor antagonists (ARBs) on zinc (Zn), iron (Fe), and copper (Cu) status, parameters of oxidative and inflammatory states, and glucose and lipid metabolism in patients with newly diagnosed primary arterial hypertension (AH). Methods: Ninety-eight hypertensive subjects received diuretics, β-blockers, Ca-antagonists, ACE-I, or ARB for three months. Zn, Fe, and Cu concentrations were determined in blood, urine, and hair. Results: A decrease in zinc serum and erythrocyte concentration and an increase in zinc urine concentration were registered after diuretic administration. Ca-antagonists led to a decrease in erythrocyte zinc concentration. A decrease in serum zinc concentration was observed after ACE-I. A decrease in triglyceride serum concentration was noted after ACE-I therapy, and a decrease in tumor necrosis factor-α serum concentration was seen following administration of Ca-antagonists. Hypotensive drugs led to decreases in catalase and superoxide dismutase serum concentrations. Conclusions: Three-months of monotherapy with diuretics, Ca-antagonists, or ACE-I impairs zinc status in patients with newly diagnosed primary AH. Antihypertensive monopharmacotherapy and zinc metabolism alterations affect lipid metabolism, the oxidative state, and the inflammatory state.
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Affiliation(s)
- Joanna Suliburska
- Institute of Human Nutrition and Dietetics, Poznan University of Life Sciences, Wojska Polskiego St. 31, 60-624 Poznań, Poland.
| | - Katarzyna Skrypnik
- Institute of Human Nutrition and Dietetics, Poznan University of Life Sciences, Wojska Polskiego St. 31, 60-624 Poznań, Poland.
| | - Monika Szulińska
- Department of Treatment of Obesity, Metabolic Disorders and Clinical Dietetics, Poznan University of Medical Sciences, Szamarzewskiego St. 82/84, 60-569 Poznań, Poland.
| | - Justyna Kupsz
- Department of Physiology, Poznan University of Medical Sciences, Święcickiego St. 6, 61-781 Poznań, Poland.
| | - Leszek Markuszewski
- Department of Endocrinology and Metabolic Diseases, Polish Mother's Memorial Hospital-Research Institute, 281/289 Rzgowska St., 93-338 Łódź, Poland.
| | - Paweł Bogdański
- Department of Treatment of Obesity, Metabolic Disorders and Clinical Dietetics, Poznan University of Medical Sciences, Szamarzewskiego St. 82/84, 60-569 Poznań, Poland.
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27
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Oyagbemi AA, Omobowale TO, Ola-Davies OE, Asenuga ER, Ajibade TO, Adejumobi OA, Arojojoye OA, Afolabi JM, Ogunpolu BS, Falayi OO, Hassan FO, Ochigbo GO, Saba AB, Adedapo AA, Yakubu MA. Quercetin attenuates hypertension induced by sodium fluoride via reduction in oxidative stress and modulation of HSP 70/ERK/PPARγ signaling pathways. Biofactors 2018; 44:465-479. [PMID: 30171731 DOI: 10.1002/biof.1445] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/25/2018] [Indexed: 12/13/2022]
Abstract
Hypertension is one of the silent killers in the world with high mortality and morbidity. The exposure of humans and animals to fluoride and/or fluoride containing compounds is almost inevitable. This study investigated the modulatory effects of quercetin on sodium fluoride (NaF)-induced hypertension and cardiovascular complications. Forty male rats were randomly separated into four groups (n =10). Group A animals served as the control, rats in Group B were exposed to 300 ppm of NaF, Groups C and D animals were exposed to 300 ppm of NaF along with quercetin orally at 50 mg/kg and 100 mg/kg orally by gavage, while NaF was administered in drinking water, respectively, for a week. Administration of NaF caused severe hypertension as indicated with significant increases in the systolic, diastolic, and mean arterial blood pressure, together with prolonged ventricular depolarization (QRS) and the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle (QT) intervals when compared with controls. NaF significantly decreased the activities of antioxidant enzymes, caused increase in markers of oxidative stress and renal damage when compared with controls. Immunohistochemical staining revealed lower expressions of Hsp70, ERK, and PPARγ in the heart, kidney, and aorta of rats-administered NaF relative to the controls. Together, quercetin co-treatment with NaF restored blood pressure, normalized QRS interval, and improved antioxidant defense system. © 2018 BioFactors, 44(5):465-479, 2018.
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Affiliation(s)
- Ademola Adetokunbo Oyagbemi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Temidayo Olutayo Omobowale
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olufunke Eunice Ola-Davies
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebunoluwa Racheal Asenuga
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Benin, Benin, Nigeria
| | - Temitayo Olabisi Ajibade
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olumuyiwa Abiola Adejumobi
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Jeremiah Moyinoluwa Afolabi
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
- Cell Biology & Physiology track, Integrated Biomedical Sciences PhD, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Blessing Seun Ogunpolu
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olufunke Olubunmi Falayi
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Fasilat Oluwakemi Hassan
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Grace Onyeche Ochigbo
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adebowale Benard Saba
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adeolu Alex Adedapo
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Momoh Audu Yakubu
- Department of Environmental and Interdisciplinary Sciences, College of Science, Engineering and Technology, Vascular Biology Unit, Center for Cardiovascular Diseases, COPHS, Texas Southern University, Houston, TX, USA
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28
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Fawaz YB, Moustafa ME. Effects of selenium administration on oxidative stress in the lungs of mice exposed to pyrolysis oil vapours. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1080/16583655.2018.1495409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Youssef B. Fawaz
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, Lebanon
| | - Mohamed E. Moustafa
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, Lebanon
- Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
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29
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Fukai T, Ushio-Fukai M, Kaplan JH. Copper transporters and copper chaperones: roles in cardiovascular physiology and disease. Am J Physiol Cell Physiol 2018; 315:C186-C201. [PMID: 29874110 DOI: 10.1152/ajpcell.00132.2018] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Copper (Cu) is an essential micronutrient but excess Cu is potentially toxic. Its important propensity to cycle between two oxidation states accounts for its frequent presence as a cofactor in many physiological processes through Cu-containing enzymes, including mitochondrial energy production (via cytochrome c-oxidase), protection against oxidative stress (via superoxide dismutase), and extracellular matrix stability (via lysyl oxidase). Since free Cu is potentially toxic, the bioavailability of intracellular Cu is tightly controlled by Cu transporters and Cu chaperones. Recent evidence reveals that these Cu transport systems play an essential role in the physiological responses of cardiovascular cells, including cell growth, migration, angiogenesis and wound repair. In response to growth factors, cytokines, and hypoxia, their expression, subcellular localization, and function are tightly regulated. Cu transport systems and their regulators have also been linked to various cardiovascular pathophysiologies such as hypertension, inflammation, atherosclerosis, diabetes, cardiac hypertrophy, and cardiomyopathy. A greater appreciation of the central importance of Cu transporters and Cu chaperones in cell signaling and gene expression in cardiovascular biology offers the possibility of identifying new therapeutic targets for cardiovascular disease.
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Affiliation(s)
- Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University , Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University , Augusta, Georgia.,Charlie Norwood Veterans Affairs Medical Center , Augusta Georgia
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University , Augusta, Georgia.,Department of Medicine (Cardiology), Medical College of Georgia at Augusta University , Augusta, Georgia
| | - Jack H Kaplan
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine , Chicago, Illinois
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30
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Wang Y, Branicky R, Noë A, Hekimi S. Superoxide dismutases: Dual roles in controlling ROS damage and regulating ROS signaling. J Cell Biol 2018; 217:1915-1928. [PMID: 29669742 PMCID: PMC5987716 DOI: 10.1083/jcb.201708007] [Citation(s) in RCA: 911] [Impact Index Per Article: 151.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/13/2018] [Accepted: 04/04/2018] [Indexed: 02/07/2023] Open
Abstract
Wang et al. review the dual role of superoxide dismutases in controlling reactive oxygen species (ROS) damage and regulating ROS signaling across model systems as well as their involvement in human diseases. Superoxide dismutases (SODs) are universal enzymes of organisms that live in the presence of oxygen. They catalyze the conversion of superoxide into oxygen and hydrogen peroxide. Superoxide anions are the intended product of dedicated signaling enzymes as well as the byproduct of several metabolic processes including mitochondrial respiration. Through their activity, SOD enzymes control the levels of a variety of reactive oxygen species (ROS) and reactive nitrogen species, thus both limiting the potential toxicity of these molecules and controlling broad aspects of cellular life that are regulated by their signaling functions. All aerobic organisms have multiple SOD proteins targeted to different cellular and subcellular locations, reflecting the slow diffusion and multiple sources of their substrate superoxide. This compartmentalization also points to the need for fine local control of ROS signaling and to the possibility for ROS to signal between compartments. In this review, we discuss studies in model organisms and humans, which reveal the dual roles of SOD enzymes in controlling damage and regulating signaling.
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Affiliation(s)
- Ying Wang
- Department of Biology, McGill University, Montreal, Canada
| | - Robyn Branicky
- Department of Biology, McGill University, Montreal, Canada
| | - Alycia Noë
- Department of Biology, McGill University, Montreal, Canada
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31
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Sharma M, Afolayan AJ. Redox Signaling and Persistent Pulmonary Hypertension of the Newborn. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 967:277-287. [PMID: 29047092 DOI: 10.1007/978-3-319-63245-2_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Reactive oxygen species (ROS) are redox-signaling molecules that are critically involved in regulating endothelial cell functions, host defense, aging, and cellular adaptation. Mitochondria are the major sources of ROS and important sources of redox signaling in pulmonary circulation. It is becoming increasingly evident that increased mitochondrial oxidative stress and aberrant signaling through redox-sensitive pathways play a direct causative role in the pathogenesis of many cardiopulmonary disorders including persistent pulmonary hypertension of the newborn (PPHN). This chapter highlights redox signaling in endothelial cells, antioxidant defense mechanism, cell responses to oxidative stress, and their contributions to disease pathogenesis.
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Affiliation(s)
- Megha Sharma
- Assistant Professor of Pediatrics, 999 N92nd Street, CCC suite 410, Milwaukee, WI, 53226, USA
| | - Adeleye J Afolayan
- Assistant Professor of Pediatrics, 999 N92nd Street, CCC suite 410, Milwaukee, WI, 53226, USA.
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32
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Sudhahar V, Okur MN, Bagi Z, O'Bryan JP, Hay N, Makino A, Patel VS, Phillips SA, Stepp D, Ushio-Fukai M, Fukai T. Akt2 (Protein Kinase B Beta) Stabilizes ATP7A, a Copper Transporter for Extracellular Superoxide Dismutase, in Vascular Smooth Muscle: Novel Mechanism to Limit Endothelial Dysfunction in Type 2 Diabetes Mellitus. Arterioscler Thromb Vasc Biol 2018; 38:529-541. [PMID: 29301787 DOI: 10.1161/atvbaha.117.309819] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 12/26/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Copper transporter ATP7A (copper-transporting/ATPase) is required for full activation of SOD3 (extracellular superoxide dismutase), which is secreted from vascular smooth muscle cells (VSMCs) and anchors to endothelial cell surface to preserve endothelial function by scavenging extracellular superoxide. We reported that ATP7A protein expression and SOD3 activity are decreased in insulin-deficient type 1 diabetes mellitus vessels, thereby, inducing superoxide-mediated endothelial dysfunction, which are rescued by insulin treatment. However, it is unknown regarding the mechanism by which insulin increases ATP7A expression in VSMCs and whether ATP7A downregulation is observed in T2DM (type2 diabetes mellitus) mice and human in which insulin-Akt (protein kinase B) pathway is selectively impaired. APPROACH AND RESULTS Here we show that ATP7A protein is markedly downregulated in vessels isolated from T2DM patients, as well as those from high-fat diet-induced or db/db T2DM mice. Akt2 (protein kinase B beta) activated by insulin promotes ATP7A stabilization via preventing ubiquitination/degradation as well as translocation to plasma membrane in VSMCs, which contributes to activation of SOD3 that protects against T2DM-induced endothelial dysfunction. Downregulation of ATP7A in T2DM vessels is restored by constitutive active Akt or PTP1B-/- (protein-tyrosine phosphatase 1B-deficient) T2DM mice, which enhance insulin-Akt signaling. Immunoprecipitation, in vitro kinase assay, and mass spectrometry analysis reveal that insulin stimulates Akt2 binding to ATP7A to induce phosphorylation at Ser1424/1463/1466. Furthermore, SOD3 activity is reduced in Akt2-/- vessels or VSMCs, which is rescued by ATP7A overexpression. CONCLUSION Akt2 plays a critical role in ATP7A protein stabilization and translocation to plasma membrane in VSMCs, which contributes to full activation of vascular SOD3 that protects against endothelial dysfunction in T2DM.
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Affiliation(s)
- Varadarajan Sudhahar
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Mustafa Nazir Okur
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Zsolt Bagi
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - John P O'Bryan
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Nissim Hay
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Ayako Makino
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Vijay S Patel
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Shane A Phillips
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - David Stepp
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Masuko Ushio-Fukai
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.)
| | - Tohru Fukai
- From the Vascular Biology Center (V.S., Z.B., D.S., M.U.-F., T.F.), Department of Pharmacology and Toxicology (V.S., T.F.), Department of Medicine (Cardiology) (Z.B., M.U.-F.), and Department of Surgery (V.S.P.), Medical College of Georgia at Augusta University; Departments of Medicine (Cardiology) and Pharmacology (V.S., T.F.), Department of Pharmacology (M.N.O., J.P.O., M.U.-F.), Center for Cardiovascular Research (V.S., J.P.O., M.U.-F., T.F.), Department of Physical Therapy (S.A.P.), and Department of Biochemistry and Molecular Genetics (N.H.), University of Illinois at Chicago; Department of Medicine and Physiology, University of Arizona, Tucson (A.M.), Jesse Brown Veterans Affairs Medical Center, Chicago, IL (V.S., T.F.); and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., T.F.).
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Ganesan K, Sukalingam K, Xu B. Impact of consumption and cooking manners of vegetable oils on cardiovascular diseases- A critical review. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Call JA, Donet J, Martin KS, Sharma AK, Chen X, Zhang J, Cai J, Galarreta CA, Okutsu M, Du Z, Lira VA, Zhang M, Mehrad B, Annex BH, Klibanov AL, Bowler RP, Laubach VE, Peirce SM, Yan Z. Muscle-derived extracellular superoxide dismutase inhibits endothelial activation and protects against multiple organ dysfunction syndrome in mice. Free Radic Biol Med 2017; 113:212-223. [PMID: 28982599 PMCID: PMC5740866 DOI: 10.1016/j.freeradbiomed.2017.09.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/22/2017] [Accepted: 09/28/2017] [Indexed: 12/20/2022]
Abstract
Multiple organ dysfunction syndrome (MODS) is a detrimental clinical complication in critically ill patients with high mortality. Emerging evidence suggests that oxidative stress and endothelial activation (induced expression of adhesion molecules) of vital organ vasculatures are key, early steps in the pathogenesis. We aimed to ascertain the role and mechanism(s) of enhanced extracellular superoxide dismutase (EcSOD) expression in skeletal muscle in protection against MODS induced by endotoxemia. We showed that EcSOD overexpressed in skeletal muscle-specific transgenic mice (TG) redistributes to other peripheral organs through the circulation and enriches at the endothelium of the vasculatures. TG mice are resistant to endotoxemia (induced by lipopolysaccharide [LPS] injection) in developing MODS with significantly reduced mortality and organ damages compared with the wild type littermates (WT). Heterogenic parabiosis between TG and WT mice conferred a significant protection to WT mice, whereas mice with R213G knock-in mutation, a human single nucleotide polymorphism leading to reduced binding EcSOD in peripheral organs, exacerbated the organ damages. Mechanistically, EcSOD inhibits vascular cell adhesion molecule 1 expression and inflammatory leukocyte adhesion to the vascular wall of vital organs, blocking an early step of the pathology in organ damage under endotoxemia. Therefore, enhanced expression of EcSOD in skeletal muscle profoundly protects against MODS by inhibiting endothelial activation and inflammatory cell adhesion, which could be a promising therapy for MODS.
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Affiliation(s)
- Jarrod A Call
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Jean Donet
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Kyle S Martin
- Departments of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
| | - Ashish K Sharma
- Departments of Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Xiaobin Chen
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Department of Cardiology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province 410008, China
| | - Jiuzhi Zhang
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Department of Critical Care Medicine and Institute of Critical Care Medicine, First Affiliate Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, Liaoning Province 116011, China
| | - Jie Cai
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Department of Infectious Disease, First Affiliate Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu Province 210029, China
| | - Carolina A Galarreta
- Departments of Pediatrics, University of Virginia, Charlottesville, VA 22908, USA
| | - Mitsuharu Okutsu
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Zhongmin Du
- Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Vitor A Lira
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Mei Zhang
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Borna Mehrad
- Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Brian H Annex
- Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | | | - Russell P Bowler
- Division of Pulmonary Medicine, Department of Medicine, National Jewish Health, Denver, CO, USA
| | - Victor E Laubach
- Departments of Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Shayn M Peirce
- Departments of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
| | - Zhen Yan
- Center for Skeletal Muscle Research at Robert Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA; Departments of Medicine, University of Virginia, Charlottesville, VA 22908, USA; Departments of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA; Departments of Molecular Physiology & Biological Physics, University of Virginia, Charlottesville, VA 22908, USA.
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Holmes MV, Ala-Korpela M, Smith GD. Mendelian randomization in cardiometabolic disease: challenges in evaluating causality. Nat Rev Cardiol 2017; 14:577-590. [PMID: 28569269 DOI: 10.1038/nrcardio.2017.78] [Citation(s) in RCA: 388] [Impact Index Per Article: 55.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mendelian randomization (MR) is a burgeoning field that involves the use of genetic variants to assess causal relationships between exposures and outcomes. MR studies can be straightforward; for example, genetic variants within or near the encoding locus that is associated with protein concentrations can help to assess their causal role in disease. However, a more complex relationship between the genetic variants and an exposure can make findings from MR more difficult to interpret. In this Review, we describe some of these challenges in interpreting MR analyses, including those from studies using genetic variants to assess causality of multiple traits (such as branched-chain amino acids and risk of diabetes mellitus); studies describing pleiotropic variants (for example, C-reactive protein and its contribution to coronary heart disease); and those investigating variants that disrupt normal function of an exposure (for example, HDL cholesterol or IL-6 and coronary heart disease). Furthermore, MR studies on variants that encode enzymes responsible for the metabolism of an exposure (such as alcohol) are discussed, in addition to those assessing the effects of variants on time-dependent exposures (extracellular superoxide dismutase), cumulative exposures (LDL cholesterol), and overlapping exposures (triglycerides and non-HDL cholesterol). We elaborate on the molecular features of each relationship, and provide explanations for the likely causal associations. In doing so, we hope to contribute towards more reliable evaluations of MR findings.
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Affiliation(s)
- Michael V Holmes
- Medical Research Council Population Health Research Unit, University of Oxford, Roosevelt Drive, Oxford OX3 7LF, UK.,Clinical Trial Service Unit &Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Big Data Institute Building, Old Road Campus, Roosevelt Drive, Oxford OX3 7BN, UK.,National Institute for Health Research, Oxford Biomedical Research Centre, Oxford University Hospital, Old Road, Oxford OX3 7LE, UK.,Medical Research Council Integrative Epidemiology Unit, University of Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, UK
| | - Mika Ala-Korpela
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, UK.,Computational Medicine, Faculty of Medicine, University of Oulu and Biocenter Oulu, University of Oulu, Aapistie 5A, 90014, Oulu, Finland.,School of Social and Community Medicine, University of Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, UK
| | - George Davey Smith
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, UK.,School of Social and Community Medicine, University of Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, UK
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Sangodele JO, Olaleye MT, Monsees TK, Akinmoladun AC. The para isomer of dinitrobenzene disrupts redox homeostasis in liver and kidney of male wistar rats. Biochem Biophys Rep 2017; 10:297-302. [PMID: 28955757 PMCID: PMC5614678 DOI: 10.1016/j.bbrep.2017.04.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 03/24/2017] [Accepted: 04/26/2017] [Indexed: 02/07/2023] Open
Abstract
Background Para-Dinitrobenzene (p-DNB) is one of the isomers of dinitrobenzene which have been detected as environmental toxicants. Skin irritation and organ toxicities are likely for industrial workers exposed to p-DNB. This study evaluated the effect of sub-chronic exposure of rats to p-DNB on cellular redox balance, hepatic and renal integrity. Methods Forty eight male Wistar rats weighing 160–180 g were administered 50, 75, 1000 and 2000 mg/kg b.wt (body weight) of p-DNB or an equivalent volume of vehicle (control) orally and topically for 14 days. After the period of treatment, the activities of kidney and liver catalase (CAT), alkaline phosphatase (ALP) and superoxide dismutase (SOD) as well as extent of renal and hepatic lipid peroxidation (LPO) were determined. Serum ALP activity and plasma urea concentration were also evaluated. Results Compared with control animals, p-DNB -administered rats showed decrease in the body and relative kidney and liver weights as well as increased renal and hepatic hydrogen peroxide and lipid peroxidation levels accompanied by decreased superoxide dismutase and catalase activities. However, p-DNB caused a significant increase in plasma urea concentration and serum, liver and kidney ALP activities relative to control. In addition, p-DNB caused periportal infiltration, severe macro vesicular steatosis and hepatic necrosis in the liver. Conclusions Our findings show that sub-chronic oral and sub-dermal administration of p-DNB may produce hepato-nephrotoxicity through oxidative stress. Activities of kidney and liver catalase and superoxide dismutase were decreased by p-DNB. p-DNB increased serum, liver and kidney activity of alkaline phosphatase. Plasma urea concentration was increased by p-DNB. Lipid peroxidation and H2O2 level were increased by p-DNB. p-DNB caused histopathological changes in liver and kidney tissues.
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Key Words
- ALP, alanine phosphatase
- CAT, Catalase
- Environmental toxicants
- GSH, glutathione
- GST, glutathione –s –transferase, GPX, glutathione reductase, NIH, national institute of health
- H&E, hamatoxilin eosin
- Kidney
- LPO, lipid peroxidation
- Liver
- MDA, malodialdehyde
- OECD, Organisation for economic co-operation and Development
- Oxidative stress
- PHS, public health service
- SOD, Superoxide dismutase
- SPSS, Statistical Pucteage for Social Sciences
- Sub-dermal
- TBA, thiobarbituric acid
- TNB, trinitrobenzene
- o-DNB, ortho-dinitrobenzene, m-DNB, meta-dinitrobenzene
- p-DNB, para-dinitrobenzene
- p‐DNB
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Affiliation(s)
- Janet Olayemi Sangodele
- Phytomedicine, Biochemical Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Sciences, PMB 704, The Federal University of Technology, Zip code: 340001, Akure, Nigeria.,Department of Medical Biosciences, 4th floor, Life Science Building, Faculty of Natural Science, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Mary Tolulope Olaleye
- Phytomedicine, Biochemical Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Sciences, PMB 704, The Federal University of Technology, Zip code: 340001, Akure, Nigeria
| | - Thomas K Monsees
- Department of Medical Biosciences, 4th floor, Life Science Building, Faculty of Natural Science, University of the Western Cape, Bellville, Cape Town, South Africa
| | - Afolabi Clement Akinmoladun
- Phytomedicine, Biochemical Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Sciences, PMB 704, The Federal University of Technology, Zip code: 340001, Akure, Nigeria
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Jordão CP, Fernandes T, Tanaka LY, Bechara LRG, de Sousa LGO, Oliveira EM, Ramires PR. Aerobic Swim Training Restores Aortic Endothelial Function by Decreasing Superoxide Levels in Spontaneously Hypertensive Rats. Clinics (Sao Paulo) 2017; 72:310-316. [PMID: 28591344 PMCID: PMC5439113 DOI: 10.6061/clinics/2017(05)09] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 02/17/2017] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE: We aimed to determine whether aerobic training decreases superoxide levels, increases nitric oxide levels, and improves endothelium-dependent vasodilation in the aortas of spontaneously hypertensive rats. METHODS: Spontaneously hypertensive rats (SHR) and Wistar Kyoto rats (WKY) were distributed into 2 groups: sedentary (SHRsd and WKYsd, n=10 each) and swimming-trained (SHRtr, n=10 and WKYtr, n=10, respectively). The trained group participated in training sessions 5 days/week for 1 h/day with an additional work load of 4% of the animal's body weight. After a 10-week sedentary or aerobic training period, the rats were euthanized. The thoracic aortas were removed to evaluate the vasodilator response to acetylcholine (10-10 to 10-4 M) with or without preincubation with L-NG-nitro-L-arginine methyl ester hydrochloride (L-NAME; 10-4 M) in vitro. The aortic tissue was also used to assess the levels of the endothelial nitric oxide synthase and nicotinamide adenine dinucleotide oxidase subunit isoforms 1 and 4 proteins, as well as the superoxide and nitrite contents. Blood pressure was measured using a computerized tail-cuff system. RESULTS: Aerobic training significantly increased the acetylcholine-induced maximum vasodilation observed in the SHRtr group compared with the SHRsd group (85.9±4.3 vs. 71.6±5.2%). Additionally, in the SHRtr group, superoxide levels were significantly decreased, nitric oxide bioavailability was improved, and the levels of the nicotinamide adenine dinucleotide oxidase subunit isoform 4 protein were decreased compared to the SHRsd group. Moreover, after training, the blood pressure of the SHRtr group decreased compared to the SHRsd group. Exercise training had no effect on the blood pressure of the WKYtr group. CONCLUSIONS: In SHR, aerobic swim training decreased vascular superoxide generation by nicotinamide adenine dinucleotide oxidase subunit isoform 4 and increased nitric oxide bioavailability, thereby improving endothelial function.
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Affiliation(s)
- Camila P Jordão
- Unidade de Reabilitação, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Tiago Fernandes
- Laboratorio de Bioquimica e Biologia Molecular do Exercicio, Escola de Educacao Fisica e Esporte, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Leonardo Yuji Tanaka
- Laboratorio de Biologia Vascular, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Luiz R. Grassmann Bechara
- Laboratorio de Bioquimica e Biologia Molecular do Exercicio, Escola de Educacao Fisica e Esporte, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Luis Gustavo Oliveira de Sousa
- Laboratorio de Bioquimica e Biologia Molecular do Exercicio, Escola de Educacao Fisica e Esporte, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Edilamar M Oliveira
- Laboratorio de Bioquimica e Biologia Molecular do Exercicio, Escola de Educacao Fisica e Esporte, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Paulo Rizzo Ramires
- Laboratorio de Bioquimica e Biologia Molecular do Exercicio, Escola de Educacao Fisica e Esporte, Universidade de Sao Paulo, Sao Paulo, SP, BR
- *Corresponding author. E-mail:
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Xu Y, Qian S. Techniques for Detecting Reactive Oxygen Species in Pulmonary Vasculature Redox Signaling. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 967:361-372. [DOI: 10.1007/978-3-319-63245-2_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kim SK, Massett MP. Genetic Regulation of Endothelial Vasomotor Function. Front Physiol 2016; 7:571. [PMID: 27932996 PMCID: PMC5122706 DOI: 10.3389/fphys.2016.00571] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/09/2016] [Indexed: 12/01/2022] Open
Abstract
The endothelium plays an important role in the regulation of vasomotor tone and the maintenance of vascular integrity. Endothelial dysfunction, i.e., impaired endothelial dependent dilation, is a fundamental component of the pathogenesis of cardiovascular disease. Although endothelial dysfunction is associated with a number of cardiovascular disease risk factors, those risk factors are not the only determinants of endothelial dysfunction. Despite knowing many molecules involved in endothelial signaling pathways, the genetic contribution to endothelial function has yet to be fully elucidated. This mini-review summarizes current evidence supporting the genetic contribution to endothelial vasomotor function. Findings from population-based studies, association studies for candidate genes, and unbiased large genomic scale studies in humans and rodent models are discussed. A brief synopsis of the current studies addressing the genetic regulation of endothelial responses to exercise training is also included.
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Affiliation(s)
- Seung Kyum Kim
- Department of Health and Kinesiology, Texas A&M UniversityCollege Station, TX, USA
- Tufts Medical Center, Molecular Cardiology Research InstituteBoston, MA, USA
| | - Michael P. Massett
- Department of Health and Kinesiology, Texas A&M UniversityCollege Station, TX, USA
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Crespo K, Ménard A, Deng AY. Retinoblastoma-associated protein 140 as a candidate for a novel etiological gene to hypertension. Clin Exp Hypertens 2016; 38:533-40. [PMID: 27391979 DOI: 10.3109/10641963.2016.1163373] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Gene discovery in animal models may lead to the revelation of therapeutic targets for essential hypertension as well as mechanistic insights into blood pressure (BP) regulation. Our aim was to identify a disease-causing gene for a component of polygenic hypertension contrasting inbred hypertensive Dahl salt-sensitive (DSS) and normotensive Lewis rats. The chromosome segment harboring a quantitative trait locus (QTL), C16QTL, was first isolated from the rat genome via congenic strains. A candidate gene responsible for C16QTL causing a BP difference between DSS and Lewis rats was then identified using molecular analyses combining our independently-conducted total genome and gene-specific sequencings. The retinoblastoma-associated protein 140 (Rap140)/family with sequence similarity 208 member A (Fam208a) is the only candidate gene supported to be C16QTL among three genes in genome block 1 present in the C16QTL-residing interval. A mode of its actions could be to influence the expressions of genes that are downstream in a pathway potentially leading to BP regulation such as that encoding the solute carrier family 7 (cationic amino acid transporter, y+ system) member 12 (Slc7a12), which is specifically expressed in kidneys. Thus, Rap140/Fam208a probably encoding a transcription factor is the strongest candidate for a novel BP QTL that acts via a putative Rap140/Fam208a-Slc7a12-BP pathway. These data implicate a premier physiological role for Rap140/Fam208 beyond development and a first biological function for the Slc7a12 protein in any organism.
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Affiliation(s)
- Kimberley Crespo
- a Department of Medicine , Université de Montréal, Research Center, CRCHUM (Center Hospitalier de l'Université de Montréal) , Montréal , Québec , Canada
| | - Annie Ménard
- a Department of Medicine , Université de Montréal, Research Center, CRCHUM (Center Hospitalier de l'Université de Montréal) , Montréal , Québec , Canada
| | - Alan Y Deng
- a Department of Medicine , Université de Montréal, Research Center, CRCHUM (Center Hospitalier de l'Université de Montréal) , Montréal , Québec , Canada
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Aragonès G, Auguet T, Guiu-Jurado E, Berlanga A, Curriu M, Martinez S, Alibalic A, Aguilar C, Hernández E, Camara ML, Canela N, Herrero P, Ruyra X, Martín-Paredero V, Richart C. Proteomic Profile of Unstable Atheroma Plaque: Increased Neutrophil Defensin 1, Clusterin, and Apolipoprotein E Levels in Carotid Secretome. J Proteome Res 2016; 15:933-44. [PMID: 26795031 DOI: 10.1021/acs.jproteome.5b00936] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Because of the clinical significance of carotid atherosclerosis, the search for novel biomarkers has become a priority. The aim of the present study was to compare the protein secretion profile of the carotid atherosclerotic plaque (CAP, n = 12) and nonatherosclerotic mammary artery (MA, n = 10) secretomes. We used a nontargeted proteomic approach that incorporated tandem immunoaffinity depletion, iTRAQ labeling, and nanoflow liquid chromatography coupled to high-resolution mass spectrometry. In total, 162 proteins were quantified, of which 25 showed statistically significant differences in secretome levels between carotid atherosclerotic plaque and nondiseased mammary artery. We found increased levels of neutrophil defensin 1, apolipoprotein E, clusterin, and zinc-alpha-2-glycoprotein in CAP secretomes. Results were validated by ELISA assays. Also, differentially secreted proteins are involved in pathways such as focal adhesion and leukocyte transendothelial migration. In conclusion, this study provides a subset of identified proteins that are differently expressed in secretomes of clinical significance.
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Affiliation(s)
- Gemma Aragonès
- Grup de Recerca GEMMAIR - Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), Institut Investigació Sanitària Pere Virgili (IISPV). Tarragona 43007, Spain
| | - Teresa Auguet
- Grup de Recerca GEMMAIR - Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), Institut Investigació Sanitària Pere Virgili (IISPV). Tarragona 43007, Spain.,Servei Medicina Interna, Hospital Universitari Joan XXIII , Tarragona 43007, Spain
| | - Esther Guiu-Jurado
- Grup de Recerca GEMMAIR - Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), Institut Investigació Sanitària Pere Virgili (IISPV). Tarragona 43007, Spain
| | - Alba Berlanga
- Grup de Recerca GEMMAIR - Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), Institut Investigació Sanitària Pere Virgili (IISPV). Tarragona 43007, Spain
| | - Marta Curriu
- Grup de Recerca GEMMAIR - Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), Institut Investigació Sanitària Pere Virgili (IISPV). Tarragona 43007, Spain
| | - Salomé Martinez
- Servei Anatomia Patològica, Hospital Universitari Joan XXIII , Tarragona 43007, Spain
| | - Ajla Alibalic
- Servei Medicina Interna, Hospital Universitari Joan XXIII , Tarragona 43007, Spain
| | - Carmen Aguilar
- Grup de Recerca GEMMAIR - Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), Institut Investigació Sanitària Pere Virgili (IISPV). Tarragona 43007, Spain
| | - Esteban Hernández
- Servei Angiologia i Cirurgia Vascular, Hospital Universitari Joan XXIII , Tarragona 43007, Spain
| | - María-Luisa Camara
- Servei de Cirurgia Cardíaca, Hospital Germans Trias i Pujol , Badalona 08916, Spain
| | - Núria Canela
- Group of Research on Omic Methodologies (GROM), Centre for Omic Sciences (COS) , Reus 43204, Spain
| | - Pol Herrero
- Group of Research on Omic Methodologies (GROM), Centre for Omic Sciences (COS) , Reus 43204, Spain
| | - Xavier Ruyra
- Servei de Cirurgia Cardíaca, Hospital Germans Trias i Pujol , Badalona 08916, Spain
| | - Vicente Martín-Paredero
- Servei Angiologia i Cirurgia Vascular, Hospital Universitari Joan XXIII , Tarragona 43007, Spain
| | - Cristóbal Richart
- Grup de Recerca GEMMAIR - Medicina Aplicada, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), Institut Investigació Sanitària Pere Virgili (IISPV). Tarragona 43007, Spain.,Servei Medicina Interna, Hospital Universitari Joan XXIII , Tarragona 43007, Spain
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Côco H, Pernomian L, Marchi KC, Gomes MS, de Andrade CR, Ramalho LNZ, Tirapelli CR, de Oliveira AM. Consequence of hyperhomocysteinaemia on α1-adrenoceptor-mediated contraction in the rat corpus cavernosum: the role of reactive oxygen species. ACTA ACUST UNITED AC 2016; 68:63-75. [PMID: 26725912 DOI: 10.1111/jphp.12486] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 09/12/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Our main objective was to investigate the mechanisms underlying the effects of hyperhomocysteinaemia (HHcy) on contractile response mediated by α1-adrenoceptors in the rat corpus cavernosum. METHODS Concentration-response curves for phenylephrine (PE) were obtained in strips of corpus cavernosum, in absence or after incubation with tiron, tempol or polyethylene glycol (PEG)-catalase combined or not with tempol. We also measured the superoxide anion (O2(-)) and hydrogen peroxide (H2O2) generation, superoxide dismutase (SOD) and catalase activity and α-actin expression in rat corpus cavernosum from both groups. KEY FINDINGS HHcy increased PE-induced contraction in cavernosal strips. Tiron, PEG-catalase or tempol increased PE-induced contraction in strips from control rats, but it was not altered by tiron or PEG-catalase in HHcy rats, whereas tempol reduced this response. The combination of PEG-catalase and tempol did not alter the contractile response to PE in both groups. HHcy increased O2(-) generation and SOD activity, whereas H2O2 concentration was reduced. Finally, HHcy did not alter catalase activity or expression of α-actin. CONCLUSIONS The major new finding from this study is that HHcy induced a marked increase in PE-induced contraction in rat corpus cavernosum by a mechanism that involves increased O2(-) generation and it could play a role in the pathogenesis of erectile dysfunction associated with HHcy.
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Affiliation(s)
- Hariane Côco
- Departament of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Larissa Pernomian
- Laboratory of Vascular Injury, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Katia C Marchi
- Departament of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Mayara S Gomes
- Laboratory of Vascular Injury, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Cláudia R de Andrade
- Department of Pathology and Legal Medicine, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Leandra N Z Ramalho
- Nucleus of Applied Bioprospection and Molecular Research, Faculdades Inta, Fortaleza, CE, Brazil
| | - Carlos R Tirapelli
- Laboratory of Pharmacology, Escola de Enfermagem de Ribeirão Preto, Ribeirão Preto, SP, Brazil
| | - Ana M de Oliveira
- Laboratory of Vascular Injury, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
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43
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Eltoweissy M, Dihazi GH, Müller GA, Asif AR, Dihazi H. Protein DJ-1 and its anti-oxidative stress function play an important role in renal cell mediated response to profibrotic agents. MOLECULAR BIOSYSTEMS 2016; 12:1842-59. [DOI: 10.1039/c5mb00887e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In the pathogenesis of renal fibrosis, oxidative stress (OS) enhances the production of reactive oxygen species (ROS) leading to sustained cell growth, inflammation, excessive tissue remodelling and accumulation, which results in the development and acceleration of renal damage.
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Affiliation(s)
- Marwa Eltoweissy
- Department of Nephrology and Rheumatology
- University Medical Center Göttingen
- Georg-August University Göttingen
- D-37075 Göttingen
- Germany
| | - Gry H. Dihazi
- Department of Nephrology and Rheumatology
- University Medical Center Göttingen
- Georg-August University Göttingen
- D-37075 Göttingen
- Germany
| | - Gerhard A. Müller
- Department of Nephrology and Rheumatology
- University Medical Center Göttingen
- Georg-August University Göttingen
- D-37075 Göttingen
- Germany
| | - Abdul R. Asif
- Department of Clinical Chemistry
- University Medical Center Göttingen
- Georg-August University Göttingen
- Germany
| | - Hassan Dihazi
- Department of Nephrology and Rheumatology
- University Medical Center Göttingen
- Georg-August University Göttingen
- D-37075 Göttingen
- Germany
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44
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Espinosa-Diez C, Miguel V, Mennerich D, Kietzmann T, Sánchez-Pérez P, Cadenas S, Lamas S. Antioxidant responses and cellular adjustments to oxidative stress. Redox Biol 2015; 6:183-197. [PMID: 26233704 PMCID: PMC4534574 DOI: 10.1016/j.redox.2015.07.008] [Citation(s) in RCA: 698] [Impact Index Per Article: 77.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 07/06/2015] [Indexed: 02/08/2023] Open
Abstract
Redox biological reactions are now accepted to bear the Janus faceted feature of promoting both physiological signaling responses and pathophysiological cues. Endogenous antioxidant molecules participate in both scenarios. This review focuses on the role of crucial cellular nucleophiles, such as glutathione, and their capacity to interact with oxidants and to establish networks with other critical enzymes such as peroxiredoxins. We discuss the importance of the Nrf2-Keap1 pathway as an example of a transcriptional antioxidant response and we summarize transcriptional routes related to redox activation. As examples of pathophysiological cellular and tissular settings where antioxidant responses are major players we highlight endoplasmic reticulum stress and ischemia reperfusion. Topologically confined redox-mediated post-translational modifications of thiols are considered important molecular mechanisms mediating many antioxidant responses, whereas redox-sensitive microRNAs have emerged as key players in the posttranscriptional regulation of redox-mediated gene expression. Understanding such mechanisms may provide the basis for antioxidant-based therapeutic interventions in redox-related diseases. Antioxidant responses are crucial for both redox signaling and redox damage. Glutathione-mediated reactions and Nrf2-Keap1 pathway are key antioxidant responses. Redox-related post-translational modifications activate specific signaling pathways. Redox-sensitive microRNAs contribute to redox-mediated gene expression regulation. ER stress and ischemia-reperfusion are antioxidant-related pathophysiological events.
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Affiliation(s)
- Cristina Espinosa-Diez
- Department of Cell Biology and Immunology, Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Verónica Miguel
- Department of Cell Biology and Immunology, Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Daniela Mennerich
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, Aapistie 7, University of Oulu, FI-90230 Oulu, Finland
| | - Thomas Kietzmann
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, Aapistie 7, University of Oulu, FI-90230 Oulu, Finland
| | - Patricia Sánchez-Pérez
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM) and Departamento de Biología Molecular, Universidad Autónoma de Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain; Instituto de Investigación Sanitaria Princesa (IIS-IP), 28006 Madrid, Spain
| | - Susana Cadenas
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM) and Departamento de Biología Molecular, Universidad Autónoma de Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain; Instituto de Investigación Sanitaria Princesa (IIS-IP), 28006 Madrid, Spain
| | - Santiago Lamas
- Department of Cell Biology and Immunology, Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Nicolás Cabrera 1, 28049 Madrid, Spain.
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45
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Dória GAA, Santos AR, Bittencourt LS, Bortolin RC, Menezes PP, Vasconcelos BS, Souza RO, Fonseca MJV, Santos ADC, Saravanan S, Silva FA, Gelain DP, Moreira JCF, Prata APN, Quintans-Júnior LJ, Araújo AAS. Redox-Active Profile Characterization of Remirea maritima Extracts and Its Cytotoxic Effect in Mouse Fibroblasts (L929) and Melanoma (B16F10) Cells. Molecules 2015; 20:11699-718. [PMID: 26121396 PMCID: PMC6331889 DOI: 10.3390/molecules200711699] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 05/06/2015] [Accepted: 05/12/2015] [Indexed: 12/26/2022] Open
Abstract
Remirea maritima is a tropical plant with a reticulated root system belonging to the family Cyperaceae, also known to have biologically active secondary metabolites. However, very few data on R. maritima’s biological actions are available and there are no reports regarding the redox-active profile of this plant. In this study, we examined the total phenolic content of Remirea maritima hydroalcoholic (RMHA) extracts, redox properties against different reactive species generated in vitro and their cytotoxic effect against fibroblasts (L929) and melanoma (B16F10) cells. Total reactive antioxidant potential index (TRAP) and total antioxidant reactivity (TAR) results revealed that RMHA at all concentrations tested showed significant antioxidant capacity. RMHA was also effective against hydroxyl radical formation, reduction of Fe3+ to Fe2+ and in scavenging nitric oxide (NO) radicals. In vitro, the level of lipid peroxidation was reduced by RMHA extract and the data showed significant oxidative damage protection. The RMHA cytotoxicity was evaluated by a neutral red assay in fibroblast (L929) and melanome (B16F10) cells. The obtained results showed that the RMHA (40 and 80 µg/mL, respectively) reduced 70% of the viable cells. In conclusion, this study represents the first report regarding the antioxidant and anti-proliferative potential of R. maritima against B16F10 melanoma cells.
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Affiliation(s)
- Grace Anne A. Dória
- Departament of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jardim Rosa Elze, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (G.A.A.D.); (A.R.S.); (P.P.M.); (B.S.V.); (S.S.); (F.A.S.)
| | - Anderson R. Santos
- Departament of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jardim Rosa Elze, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (G.A.A.D.); (A.R.S.); (P.P.M.); (B.S.V.); (S.S.); (F.A.S.)
| | - Leonardo S. Bittencourt
- Departament of Biochemistry, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Rio Grande do Sul, Brazil; E-Mails: (L.S.B.); (R.C.B.); (D.P.G.); (J.C.F.M.)
| | - Rafael C. Bortolin
- Departament of Biochemistry, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Rio Grande do Sul, Brazil; E-Mails: (L.S.B.); (R.C.B.); (D.P.G.); (J.C.F.M.)
| | - Paula P. Menezes
- Departament of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jardim Rosa Elze, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (G.A.A.D.); (A.R.S.); (P.P.M.); (B.S.V.); (S.S.); (F.A.S.)
| | - Bruno S. Vasconcelos
- Departament of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jardim Rosa Elze, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (G.A.A.D.); (A.R.S.); (P.P.M.); (B.S.V.); (S.S.); (F.A.S.)
| | - Rebeca O. Souza
- Departament of Pharmacy, University of São Paulo, 14040-900 Ribeirão Preto, São Paulo, Brazil; E-Mails: (R.O.S.); (M.J.V.F.)
| | - Maria José V. Fonseca
- Departament of Pharmacy, University of São Paulo, 14040-900 Ribeirão Preto, São Paulo, Brazil; E-Mails: (R.O.S.); (M.J.V.F.)
| | - Alan Diego C. Santos
- Departament of Physiology and Chemistry, Federal University of Sergipe, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (A.D.C.S.); (L.J.Q.-J.)
| | - Shanmugam Saravanan
- Departament of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jardim Rosa Elze, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (G.A.A.D.); (A.R.S.); (P.P.M.); (B.S.V.); (S.S.); (F.A.S.)
| | - Francilene A. Silva
- Departament of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jardim Rosa Elze, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (G.A.A.D.); (A.R.S.); (P.P.M.); (B.S.V.); (S.S.); (F.A.S.)
| | - Daniel P. Gelain
- Departament of Biochemistry, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Rio Grande do Sul, Brazil; E-Mails: (L.S.B.); (R.C.B.); (D.P.G.); (J.C.F.M.)
| | - José Cláudio F. Moreira
- Departament of Biochemistry, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Rio Grande do Sul, Brazil; E-Mails: (L.S.B.); (R.C.B.); (D.P.G.); (J.C.F.M.)
| | - Ana Paula N. Prata
- Departament of Biology, Federal University of Sergipe, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mail:
| | - Lucindo J. Quintans-Júnior
- Departament of Physiology and Chemistry, Federal University of Sergipe, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (A.D.C.S.); (L.J.Q.-J.)
| | - Adriano A. S. Araújo
- Departament of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jardim Rosa Elze, 49100-000 São Cristóvão, Sergipe, Brazil; E-Mails: (G.A.A.D.); (A.R.S.); (P.P.M.); (B.S.V.); (S.S.); (F.A.S.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-79-21056841; Fax: +55-79-21056827
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Vogel PA, Yang X, Moss NG, Arendshorst WJ. Superoxide enhances Ca2+ entry through L-type channels in the renal afferent arteriole. Hypertension 2015; 66:374-81. [PMID: 26034201 DOI: 10.1161/hypertensionaha.115.05274] [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: 01/31/2015] [Accepted: 05/05/2015] [Indexed: 12/31/2022]
Abstract
Reactive oxygen species regulate cardiovascular and renal function in health and disease. Superoxide participates in acute calcium signaling in afferent arterioles and renal vasoconstriction produced by angiotensin II, endothelin, thromboxane, and pressure-induced myogenic tone. Known mechanisms by which superoxide acts include quenching of nitric oxide and increased ADP ribosyl cyclase/ryanodine-mediated calcium mobilization. The effect(s) of superoxide on other calcium signaling pathways in the renal microcirculation is poorly understood. The present experiments examined the acute effect of superoxide generated by paraquat on calcium entry pathways in isolated rat afferent arterioles. The peak increase in cytosolic calcium concentration caused by KCl (40 mmol/L) was 99±14 nmol/L. The response to this membrane depolarization was mediated exclusively by L-type channels because it was abolished by nifedipine but was unaffected by the T-type channel blocker mibefradil. Paraquat increased superoxide production (dihydroethidium fluorescence), tripled the peak response to KCl to 314±68 nmol/L (P<0.001) and doubled the plateau response. These effects were abolished by tempol and nitroblue tetrazolium, but not by catalase, confirming actions of superoxide and not of hydrogen peroxide. Unaffected by paraquat and superoxide was calcium entry through store-operated calcium channels activated by thapsigargin-induced calcium depletion of sarcoplasmic reticular stores. Also unresponsive to paraquat was ryanodine receptor-mediated calcium-induced calcium release from the sarcoplasmic reticulum. Our results provide new evidence that superoxide enhances calcium entry through L-type channels activated by membrane depolarization in rat cortical afferent arterioles, without affecting calcium entry through store-operated entry or ryanodine receptor-mediated calcium mobilization.
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Affiliation(s)
- Paul A Vogel
- From the Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill
| | - Xi Yang
- From the Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill
| | - Nicholas G Moss
- From the Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill
| | - William J Arendshorst
- From the Department of Cell Biology and Physiology, School of Medicine, University of North Carolina at Chapel Hill.
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47
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Brown DI, Griendling KK. Regulation of signal transduction by reactive oxygen species in the cardiovascular system. Circ Res 2015; 116:531-49. [PMID: 25634975 DOI: 10.1161/circresaha.116.303584] [Citation(s) in RCA: 343] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Oxidative stress has long been implicated in cardiovascular disease, but more recently, the role of reactive oxygen species (ROS) in normal physiological signaling has been elucidated. Signaling pathways modulated by ROS are complex and compartmentalized, and we are only beginning to identify the molecular modifications of specific targets. Here, we review the current literature on ROS signaling in the cardiovascular system, focusing on the role of ROS in normal physiology and how dysregulation of signaling circuits contributes to cardiovascular diseases, including atherosclerosis, ischemia-reperfusion injury, cardiomyopathy, and heart failure. In particular, we consider how ROS modulate signaling pathways related to phenotypic modulation, migration and adhesion, contractility, proliferation and hypertrophy, angiogenesis, endoplasmic reticulum stress, apoptosis, and senescence. Understanding the specific targets of ROS may guide the development of the next generation of ROS-modifying therapies to reduce morbidity and mortality associated with oxidative stress.
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Affiliation(s)
- David I Brown
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA
| | - Kathy K Griendling
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA.
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48
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Nakashima T, Umemoto S, Yoshimura K, Matsuda S, Itoh S, Murata T, Fukai T, Matsuzaki M. TLR4 is a critical regulator of angiotensin II-induced vascular remodeling: the roles of extracellular SOD and NADPH oxidase. Hypertens Res 2015; 38:649-55. [PMID: 25854990 DOI: 10.1038/hr.2015.55] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 01/26/2015] [Accepted: 02/20/2015] [Indexed: 02/06/2023]
Abstract
Toll-like receptor 4 (TLR4) and angiotensin II (AngII) induce vascular remodeling through the production of reactive oxygen species (ROS). AngII has also been shown to increase antioxidant enzyme extracellular superoxide dismutase (ecSOD). However, the roles of TLR4 in Ang II-induced ROS production, vascular remodeling and hypertension remain unknown. Mice lacking TLR4 function showed significant inhibition of vascular remodeling in response to chronic AngII infusion, with no impact on blood pressure. The increases in ROS level and NADPH oxidase activity in response to AngII infusion were markedly blunted in TLR4-deficient mice. Similar effects were observed in wild-type (WT) mice treated with a sub-depressor dose of the AT1 receptor antagonist irbesartan, which had no effects on TLR4-deficient mice. Intriguingly, the AngII infusion-induced increases in ecSOD activity and expression were rather enhanced in TLR4-deficient mice compared with WT mice, whereas the expression of the proinflammatory chemokine MCP-1 was decreased. Importantly, AngII-induced vascular remodeling was positively correlated with NADPH oxidase activity, ROS levels and MCP-1 expression levels. Notably, chronic norepinephrine infusion, which elevates blood pressure without increasing ROS production, did not induce significant vascular remodeling in WT mice. Taken together, these findings suggest that ROS elevation is required for accelerating vascular remodeling but not for hypertensive effects in this model. We demonstrated that TLR4 plays a pivotal role in regulating AngII-induced vascular ROS levels by inhibiting the expression and activity of the antioxidant enzyme ecSOD, as well as by activating NADPH oxidase, which enhances inflammation to facilitate the progression of vascular remodeling.
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Affiliation(s)
- Tadaaki Nakashima
- Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Seiji Umemoto
- Center for Clinical Research, Yamaguchi University Hospital, Yamaguchi, Japan
| | - Koichi Yoshimura
- Department of Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Susumu Matsuda
- Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Shinichi Itoh
- Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Tomoaki Murata
- Institute of Experimental Animals, Science Research Center, Yamaguchi University, Yamaguchi, Japan
| | - Tohru Fukai
- Department of Medicine and Pharmacology, Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL, USA
| | - Masunori Matsuzaki
- Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
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Abstract
Oxidative stress is characterized by imbalanced reactive oxygen species (ROS) production and antioxidant defenses. Two main antioxidant systems exist. The nonenzymatic system relies on molecules to directly quench ROS and the enzymatic system is composed of specific enzymes that detoxify ROS. Among the latter, the superoxide dismutase (SOD) family is important in oxidative stress modulation. Of these, manganese-dependent SOD (MnSOD) plays a major role due to its mitochondrial location, i.e., the main site of superoxide (O(2)(·-)) production. As such, extensive research has focused on its capacity to modulate oxidative stress. Early data demonstrated the relevance of MnSOD as an O(2)(·-) scavenger. More recent research has, however, identified a prominent role for MnSOD in carcinogenesis. In addition, SOD downregulation appears associated with health risk in heart and brain. A single nucleotide polymorphism which alters the mitochondria signaling sequence for the cytosolic MnSOD form has been identified. Transport into the mitochondria was differentially affected by allelic presence and a new chapter in MnSOD research thus begun. As a result, an ever-increasing number of diseases appear associated with this allelic variation including metabolic and cardiovascular disease. Although diet and exercise upregulate MnSOD, the relationship between environmental and genetic factors remains unclear.
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50
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Lee MCI. [Oxidative stress and periodontal disease--periodontal disease as a life-related disease and vascular disease]. Nihon Yakurigaku Zasshi 2014; 144:281-286. [PMID: 25492364 DOI: 10.1254/fpj.144.281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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