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Yang P, Zhu L, Wang S, Gong J, Selvaraj JN, Ye L, Chen H, Zhang Y, Wang G, Song W, Li Z, Cai L, Zhang H, Zhang D. Engineered model of heart tissue repair for exploring fibrotic processes and therapeutic interventions. Nat Commun 2024; 15:7996. [PMID: 39266508 PMCID: PMC11393355 DOI: 10.1038/s41467-024-52221-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 08/30/2024] [Indexed: 09/14/2024] Open
Abstract
Advancements in human-engineered heart tissue have enhanced the understanding of cardiac cellular alteration. Nevertheless, a human model simulating pathological remodeling following myocardial infarction for therapeutic development remains essential. Here we develop an engineered model of myocardial repair that replicates the phased remodeling process, including hypoxic stress, fibrosis, and electrophysiological dysfunction. Transcriptomic analysis identifies nine critical signaling pathways related to cellular fate transitions, leading to the evaluation of seventeen modulators for their therapeutic potential in a mini-repair model. A scoring system quantitatively evaluates the restoration of abnormal electrophysiology, demonstrating that the phased combination of TGFβ inhibitor SB431542, Rho kinase inhibitor Y27632, and WNT activator CHIR99021 yields enhanced functional restoration compared to single factor treatments in both engineered and mouse myocardial infarction model. This engineered heart tissue repair model effectively captures the phased remodeling following myocardial infarction, providing a crucial platform for discovering therapeutic targets for ischemic heart disease.
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Affiliation(s)
- Pengcheng Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Lihang Zhu
- Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Shiya Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Jixing Gong
- Center of Translational Medicine, The First Affiliated Hospital, Zhongshan School of Medicine, Sun Yat-Sen University, Guangdong, China
| | - Jonathan Nimal Selvaraj
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Lincai Ye
- Shanghai Institute for Congenital Heart Diseases, Shanghai Children's Medical Center, National Children's Medical Center, Shanghai, China
| | - Hanxiao Chen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yaoyao Zhang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Gongxin Wang
- Henan SCOPE Research Institute of Electrophysiology Co. Ltd., Kaifeng, China
| | - Wanjun Song
- Beijing Geek Gene Technology Co. Ltd., Beijing, China
| | - Zilong Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Lin Cai
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China.
| | - Hao Zhang
- Shanghai Institute for Congenital Heart Diseases, Shanghai Children's Medical Center, National Children's Medical Center, Shanghai, China.
| | - Donghui Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China.
- Cardiovascular Research Institute, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Fatima M, Andleeb H, Rehman T, Gul O, Azeezz S, Rehman H, Nawaz H. Effect of alantolactones on cardiac parameters of animals under artificially induced oxidative stress. Biomedicine (Taipei) 2024; 14:12-22. [PMID: 39386184 PMCID: PMC11460572 DOI: 10.37796/2211-8039.1457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 10/12/2024] Open
Abstract
Purpose Phytochemicals have been found effective in reducing the oxidative stress and damage to cardiovascular and other tissues. In this study, the effects of alantolactone (AL) on cardiac parameters in rabbits exposed to artificially-induced oxidative stress were investigated. Method The oxidative stress was induced in a group of White New Zealand rabbits by injecting 40% hydrogen peroxide solution (1 ml/kg body weight) thrice with an interval of 72 h. The hydrogen peroxide-treated animals were orally treated with AL extracted from the roots of Inula helenium (1 ml/kg repeated thrice after 72 h). Blood samples were taken before and after the hydrogen peroxide and AL treatments, and the sera were subjected to analysis of oxidative damage in terms of malondialdehyde content (MDA), total antioxidant activity (TAOA), linoleic acid reduction capacity (LARC), hydroxyl radical scavenging capacity (HRSC), 2,2-diphenyl-1-picrylhydrazyl radical scavenging capacity (DPPH RSC), superoxide dismutase activity (SOD) and catalase activity, and cardiac parameters including troponin-I content (Trop-I), creatine kinase-MB (CKMB), aspartate transaminase (AST). Results The hydrogen peroxide treatment substantially enhanced MDA content and SOD activity and decreased LARC, HRSC, DPPH, and catalase activity. The AL treatment significantly decreased MDA content, TAOA, Trop-I, CK-MB, and AST levels and increased LARC, DPPH RSC, HRSC, and catalase activity. Conclusion The observed effect of AL treatment on the animals' oxidative stress, antioxidant status, and cardiac biomarkers emphasizes that AL may effectively manage oxidative stress and cardiac damage.
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Affiliation(s)
- Mishal Fatima
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800,
Pakistan
| | - Hina Andleeb
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800,
Pakistan
| | - Tanzila Rehman
- Department of Chemistry, The Women University Multan, Multan,
Pakistan
| | - Ouz Gul
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800,
Pakistan
| | - Shanza Azeezz
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800,
Pakistan
| | - Huzaifa Rehman
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800,
Pakistan
| | - Haq Nawaz
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800,
Pakistan
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Asiwe JN, Ajayi AM, Ben-Azu B, Fasanmade AA. Vincristine attenuates isoprenaline-induced cardiac hypertrophy in male Wistar rats via suppression of ROS/NO/NF-қB signalling pathways. Microvasc Res 2024; 155:104710. [PMID: 38880384 DOI: 10.1016/j.mvr.2024.104710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Vincristine (VCR), a vinca alkaloid with anti-tumor and anti-oxidant properties, is acclaimed to possess cardioprotective action. However, the molecular mechanism underlying this protective effect remains unknown. This study investigated the effects of VCR on isoprenaline (ISO), a beta-adrenergic receptor agonist, induced cardiac hypertrophy in male Wistar rats. Animals were pre-treated with ISO (1 mg/kg) intraperitoneally for 14 days before VCR (25 μg/kg) intraperitoneal injection from days 1 to 28. Thereafter, mechanical, and electrical activities of the hearts of the rats were measured using a non-invasive blood pressure monitor and an electrocardiograph, respectively. After which, the heart was homogenized, and supernatants were assayed for contractile proteins: endothelin-1, cardiac troponin-1, angiotensin-II, and creatine kinase-MB, with markers of oxidative/nitrergic stress (SOD, CAT, MDA, GSH, and NO), inflammation (TNF-a and IL-6, NF-kB), and caspase-3 indicative of VCR reduced elevated blood pressure and reversed the abnormal electrocardiogram. ISO-induced increased endothelin-1, cardiac troponin-1, angiotensin-II, and creatine phosphokinase-MB, which were reversed by VCR. ISO also increased TNF-α, IL-6, NF-kB expression with increased caspase-3-mediated apoptosis in the heart. However, VCR reduced ISO-induced inflammation and apoptosis, with improved endogenous antioxidant agents (GSH, SOD, CAT) relative to ISO controls. Moreso, VCR, protected against ISO-induced histoarchitectural degeneration of cardiac myofibre. The result of this study revealed that VCR treatment significantly reverses ISO-induced cardiac hypertrophic phenotypes, via mechanisms connected to improved levels of proteins involved in excitation-contraction, and suppression of oxido-inflammatory and apoptotic pathways.
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Affiliation(s)
- Jerome Ndudi Asiwe
- Department of Physiology, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria; Department of Physiology, Faculty of Basic Medical Sciences, Delta State University, Abraka, Nigeria.
| | - Abayomi M Ajayi
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ibadan, Nigeria
| | - Benneth Ben-Azu
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, Delta State University, Abraka, Nigeria
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Jiang XY, Chen Q, Chen XY, Sun QY, Jing F, Zhang HQ, Xu J, Li XH, Guan QB. Superoxide dismutases: marker in predicting reduced left ventricular ejection fraction in patients with type 2 diabetes and acute coronary syndrome. BMC Cardiovasc Disord 2024; 24:191. [PMID: 38570824 PMCID: PMC10988854 DOI: 10.1186/s12872-024-03867-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 03/29/2024] [Indexed: 04/05/2024] Open
Abstract
AIM To examine the prognostic value of superoxide dismutase (SOD) activity for monitoring reduced left ventricular ejection fraction(LVEF)in the patients with type 2 diabetes and acute coronary syndrome (ACS). METHODS The population of this cross-sectional study included 2377 inpatients with type 2 diabetes who had an ACS admitted to the Shandong Provincial Hospital Affiliated to Shandong First Medical University from January 2016 to January 2021. RESULTS Diabetic patients with ACS were divided into 2 subgroups based on LVEF. The mean SOD activity was significantly lower in patients with an LVEF ≤ 45% than in those with an LVEF > 45% (149.1 (146.4, 151.9) versus 161.9 (160.8, 163.0)). Using ROC statistic, a cut-off value of 148.8 U/ml indicated an LVEF ≤ 45% with a sensitivity of 51.6% and a specificity of 73.7%. SODs activity were found to be correlated with the levels of NT-proBNP, hs-cTnT, the inflammatory marker CRP and fibrinogen. Despite taking the lowest quartile as a reference (OR 0.368, 95% CI 0.493-0.825, P = 0.001) or examining 1 normalized unit increase (OR 0.651, 95% CI 0.482-0.880, P = 0.005), SOD activity was found to be a stronger predictor of reduced LVEF than CRP and fibrinogen, independent of confounding factors. CONCLUSIONS Our cross-sectional study suggests that SOD activity might be a valuable and easily accessible tool for assessing and monitoring reduced LVEF in the diabetic patients with ACS.
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Affiliation(s)
- Xiu-Yun Jiang
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Qing Chen
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Xiao-Yu Chen
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Qiu-Ying Sun
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Fei Jing
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Hai-Qing Zhang
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Jin Xu
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Xiao-Hong Li
- International Medical Service Department, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China.
| | - Qing-Bo Guan
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
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Pereira FD, Mena Canata DA, Salomon TB, Hackenhaar FS, Pereira MJR, Benfato MS, Rampelotto PH. Oxidative Stress and Antioxidant Defense in the Heart, Liver, and Kidney of Bat Species with Different Feeding Habits. Int J Mol Sci 2023; 24:16369. [PMID: 38003558 PMCID: PMC10671108 DOI: 10.3390/ijms242216369] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/10/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023] Open
Abstract
The aim of this study was to compare the oxidative metabolism of four neotropical bat species with different feeding habits and investigate the relationship between their feeding habits and oxidative status. In terms of oxidative damage, our findings revealed major differences among the four bat species. In particular, hematophagous bats had lower levels of oxidative damage in the heart but higher levels in the liver. Nectarivorous bats had lower levels of carbonyl groups in the kidneys compared to insectivorous and hematophagous bats. The activity of various antioxidant and non-antioxidant enzymes in the heart, liver, and kidney also showed significant differences among the bat species. H2O2 consumption was lower in the heart of hematophagous bats, while insectivorous bats exhibited the highest enzymatic activity in the kidney. SOD activity was lower in the heart of hematophagous bats and lower in nectarivorous bats in the liver. Fumarase activity was higher in the heart of frugivorous/insectivorous and lower in nectarivorous/hematophagous bats. GPx activity was higher in the heart of nectarivorous/insectivorous and higher in the kidney of insectivorous bats. GST activity was higher in the heart of nectarivorous and lower in hematophagous bats. The correlation analysis between oxidative markers and enzymatic/non-enzymatic antioxidants in the heart, liver, and kidney exhibited distinct patterns of correlations due to variations in antioxidant defense mechanisms and oxidative stress responses in different organs. The observed differences in oxidative damage, antioxidant enzyme activities, and correlations between oxidative markers and antioxidants highlight the adaptability and complexity of the antioxidant defense systems in these bats. Each organ appears to have specific demands and adaptations to cope with oxidative stress based on its physiological functions and exposure to dietary components. Our results have major significance for the conservation and management of bats, which are threatened species despite being crucial components of ecosystems. Our study's implications go beyond bat biology and offer valuable insights into comparative oxidative physiology.
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Affiliation(s)
- Francielly Dias Pereira
- Biophysics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
- Post Graduate Program in Cellular and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
| | - Diego Antonio Mena Canata
- Biophysics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
- Post Graduate Program in Cellular and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
| | - Tiago Boeira Salomon
- Biophysics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
| | | | - María João Ramos Pereira
- Post Graduate Program in Animal Biology, Laboratory of Evolution, Systematics and Ecology of Birds and Mammals, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
| | - Mara Silveira Benfato
- Biophysics Department, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
- Post Graduate Program in Cellular and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
| | - Pabulo Henrique Rampelotto
- Graduate Program in Biological Sciences—Pharmacology and Therapeutics, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
- Bioinformatics and Biostatistics Core Facility, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
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Kang R, Laborde C, Savchenko L, Swiader A, Pizzinat N, Marsal D, Sainte-Marie Y, Boal F, Tronchere H, Roncalli J, Kunduzova O. Age-Related Shift in Cardiac and Metabolic Phenotyping Linked to Inflammatory Cytokines and Antioxidant Status in Mice. Int J Mol Sci 2023; 24:15841. [PMID: 37958823 PMCID: PMC10650425 DOI: 10.3390/ijms242115841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/18/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Age-related alterations in cardiac function, metabolic, inflammatory and antioxidant profiles are associated with an increased risk of cardiovascular mortality and morbidity. Here, we examined cardiac and metabolic phenotypes in relation to inflammatory status and antioxidant capacity in young, middle-aged and old mice. Real-time reverse transcription-polymerase chain reactions were performed on myocardium and immunoassays on plasma. Left ventricular (LV) structure and function were assessed by echocardiography using high-frequency ultrasound. Middle-aged mice exhibited an altered metabolic profile and antioxidant capacity compared to young mice, whereas myocardial expression of inflammatory factors (TNFα, IL1β, IL6 and IL10) remained unchanged. In contrast, old mice exhibited increased expression of inflammatory cytokines and plasma levels of resistin compared to young and middle-aged mice (p < 0.05). The pro-inflammatory signature of aged hearts was associated with alterations in glutathione redox homeostasis and elevated contents of 4-hydroxynonenal (4-HNE), a marker of lipid peroxidation and oxidative stress. Furthermore, echocardiographic parameters of LV systolic and diastolic functions were significantly altered in old mice compared to young mice. Taken together, these findings suggest age-related shifts in cardiac phenotype encompass the spectrum of metabo-inflammatory abnormalities and altered redox homeostasis.
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Affiliation(s)
- Ryeonshi Kang
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
| | | | - Lesia Savchenko
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
- Department of Internal Medicine, Poltava State Medical University, 23 Shevchenko, 36000 Poltava, Ukraine
| | - Audrey Swiader
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
| | - Nathalie Pizzinat
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
| | - Dimitri Marsal
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
| | - Yannis Sainte-Marie
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
| | - Frederic Boal
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
| | - Helene Tronchere
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
| | - Jerome Roncalli
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- Department of Cardiology, University Hospital of Toulouse, CEDEX 9, 31400 Toulouse, France
| | - Oksana Kunduzova
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France; (R.K.); (L.S.); (A.S.); (N.P.); (D.M.); (Y.S.-M.); (F.B.); (H.T.); (J.R.)
- University of Toulouse III, CEDEX 9, 31062 Toulouse, France;
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Shipra, Tembhre MK, Hote MP, Bhari N, Lakshmy R, Kumaran SS. PGC-1α Agonist Rescues Doxorubicin-Induced Cardiomyopathy by Mitigating the Oxidative Stress and Necroptosis. Antioxidants (Basel) 2023; 12:1720. [PMID: 37760023 PMCID: PMC10525725 DOI: 10.3390/antiox12091720] [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: 06/30/2023] [Revised: 08/10/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Cardiomyopathy (particularly dilated cardiomyopathy (DCM)) significantly contributes to development and progression of heart failure (HF), and inflammatory factors further deteriorate the symptoms. Morphological and functional defects of the heart in doxorubicin (DOX)-induced cardiomyopathy (cardiotoxicity) are similar to those of DCM. We used anagonist of PGC-1α (PPAR (peroxisome proliferator-activated receptor-gamma)-γ coactivator-1α) that is considered as the 'master regulator' of mitochondrial biogenesis with an aim to rescue the DOX-induced deleterious effects on the heart. Forty male C57BL/6J mice (8 weeks old) were divided in four groups, Control, DOX, ZLN005, and ZLN005 + DOX (n = 10 each group). The DOX-induced (10 mg/kg, single dose) cardiomyopathy mimics a DCM-like phenotype with marked morphologic alteration in cardiac tissue and functional derangements. Significant increased staining was observed for Masson Trichrome/Picrosirius red and α-Smooth Muscle Actinin (α-SMA) that indicated enhanced fibrosis in the DOX group compared to the control that was attenuated by (peroxisome proliferator-activated receptor-gamma (PPAR-γ) coactivator) (PGC)-1α (alpha) agonist (four doses of 2.5 mg/kg/dose; cumulative dose = 10 mg/kg). Similarly, elevated expression of necroptosis markers along with enhanced oxidative stress in the DOX group were alleviated by PGC-1α agonist. These data collectively suggested the potent therapeutic efficacy of PGC-1α agonist in mitigating the deleterious effects of DOX-induced cardiomyopathy, and it may be targeted in developing the future therapeutics for the management of DCM/HF.
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Affiliation(s)
- Shipra
- Department of Cardiac Biochemistry, AIIMS, New Delhi 110029, India; (S.)
| | | | | | - Neetu Bhari
- Dermatology & Venereology, AIIMS, New Delhi 110029, India
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Qrareya AN, Wise NS, Hodges ER, Mahdi F, Stewart JA, Paris JJ. HIV-1 Tat Upregulates the Receptor for Advanced Glycation End Products and Superoxide Dismutase-2 in the Heart of Transgenic Mice. Viruses 2022; 14:v14102191. [PMID: 36298745 PMCID: PMC9607872 DOI: 10.3390/v14102191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/29/2022] Open
Abstract
Cardiovascular disorder (CVD) is a common comorbidity in people living with HIV (PLWH). Although the underlying mechanisms are unknown, virotoxic HIV proteins, such as the trans-activator of transcription (Tat), likely contribute to CVD pathogenesis. Tat expression in mouse myocardium has been found to induce cardiac dysfunction and increase markers of endothelial toxicity. However, the role that Tat may play in the development of CVD pathogenesis is unclear. The capacity for Tat to impact cardiac function was assessed using AC16 human cardiomyocyte cells and adult male and female transgenic mice that conditionally expressed Tat [Tat(+)], or did not [Tat(-)]. In AC16 cardiomyocytes, Tat increased intracellular calcium. In Tat(+) mice, Tat expression was detected in both atrial and ventricular heart tissue. Tat(+) mice demonstrated an increased expression of the receptor for advanced glycation end products and superoxide dismutase-2 (SOD-2) in ventricular tissues compared to Tat(-) controls. No changes in SOD-1 or α-smooth muscle actin were observed. Despite Tat-mediated changes at the cellular level, no changes in echocardiographic measures were detected. Tat(+) mice had a greater proportion of ventricular mast cells and collagen; however, doxycycline exposure offset the latter effect. These data suggest that Tat exposure promotes cellular changes that can precede progression to CVD.
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Affiliation(s)
- Alaa N. Qrareya
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - Nason S. Wise
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - Emmanuel R. Hodges
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - Fakhri Mahdi
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - James A. Stewart
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
- Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
- Correspondence: (J.A.S.J.); (J.J.P.); Tel.: +1-662-915-2309 (J.A.S.J.); +1-662-915-3096 (J.J.P.)
| | - Jason J. Paris
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
- Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
- Correspondence: (J.A.S.J.); (J.J.P.); Tel.: +1-662-915-2309 (J.A.S.J.); +1-662-915-3096 (J.J.P.)
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9
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Han BJ, Cao GY, Jia LY, Zheng G, Zhang L, Sheng P, Xie JZ, Zhang CF. Cardioprotective Effects of Tetrahydropalmatine on Acute Myocardial Infarction in Rats. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2022; 50:1887-1904. [PMID: 36056468 DOI: 10.1142/s0192415x2250080x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tetrahydropalmatine (THP) is an active component of Corydalis yanhusuo W. T. Wang. The current study investigates the possible cardioprotective effects of tetrahydropalmatine in acute myocardial ischemia (AMI) rats. The anterior descending coronary artery of SD rats was ligated to establish an AMI model. After two weeks of gavage of THP, cardiac function was determined by echocardiography. The organ index and the infarct size were assessed after the experiment, and the histopathological myocardial tissue changes were observed. In addition, the apoptosis index of myocardial cells was detected by the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. The levels of SOD, MDA, CAT, GSH-Px, BNP, and cTn-I were measured by enzyme-linked immunosorbent assay. To determine relevant proteins, the Western blot and molecular docking were applied. Compared with the model group, THP could enhance rat cardiac ejection function to improve cardiac function, drastically lessen the infarct size, reduce myocardial cell damage and inflammatory cell infiltration. THP might also prevent ischemic myocardial damage by inhibiting myocardial cell apoptosis and efficiently reducing oxidative stress. Specifically, THP could decrease MDA, BNP, c-TnI activities, as well as the expression of Bax and Caspase-3 protein, while increasing SOD, GSH-Px, CAT activities, and Bcl-2 level. Furthermore, THP could significantly promote the phosphorylation of PI3K and Akt proteins. The involved pathways and proteins have also been verified through molecular docking. According to these findings, THP may preserve the myocardium due to its anti-oxidant and anti-apoptotic properties.
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Affiliation(s)
- Bing-Jing Han
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Gui-Yun Cao
- Institute of Traditional Chinese Medicine, Shandong Hongjitang Pharmaceutical Group Co., Ltd., Jinan 250103, P. R. China
| | - Li-Ying Jia
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Guo Zheng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Liang Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ping Sheng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ji-Zhen Xie
- Shandong Food and Drug Evaluation and Inspection Center, Jinan 250014, P. R. China
| | - Chun-Feng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
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10
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Bajic Z, Sobot T, Skrbic R, Stojiljkovic MP, Ponorac N, Matavulj A, Djuric DM. Homocysteine, Vitamins B6 and Folic Acid in Experimental Models of Myocardial Infarction and Heart Failure—How Strong Is That Link? Biomolecules 2022; 12:biom12040536. [PMID: 35454125 PMCID: PMC9027107 DOI: 10.3390/biom12040536] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 12/29/2022] Open
Abstract
Cardiovascular diseases are the leading cause of death and the main cause of disability. In the last decade, homocysteine has been found to be a risk factor or a marker for cardiovascular diseases, including myocardial infarction (MI) and heart failure (HF). There are indications that vitamin B6 plays a significant role in the process of transsulfuration in homocysteine metabolism, specifically, in a part of the reaction in which homocysteine transfers a sulfhydryl group to serine to form α-ketobutyrate and cysteine. Therefore, an elevated homocysteine concentration (hyperhomocysteinemia) could be a consequence of vitamin B6 and/or folate deficiency. Hyperhomocysteinemia in turn could damage the endothelium and the blood vessel wall and induce worsening of atherosclerotic process, having a negative impact on the mechanisms underlying MI and HF, such as oxidative stress, inflammation, and altered function of gasotransmitters. Given the importance of the vitamin B6 in homocysteine metabolism, in this paper, we review its role in reducing oxidative stress and inflammation, influencing the functions of gasotransmitters, and improving vasodilatation and coronary flow in animal models of MI and HF.
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Affiliation(s)
- Zorislava Bajic
- Department of Physiology, Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (Z.B.); (T.S.); (N.P.); (A.M.)
| | - Tanja Sobot
- Department of Physiology, Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (Z.B.); (T.S.); (N.P.); (A.M.)
| | - Ranko Skrbic
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (R.S.); (M.P.S.)
| | - Milos P. Stojiljkovic
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (R.S.); (M.P.S.)
| | - Nenad Ponorac
- Department of Physiology, Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (Z.B.); (T.S.); (N.P.); (A.M.)
| | - Amela Matavulj
- Department of Physiology, Faculty of Medicine, University of Banja Luka, 78000 Banja Luka, Bosnia and Herzegovina; (Z.B.); (T.S.); (N.P.); (A.M.)
| | - Dragan M. Djuric
- Faculty of Medicine, Institute of Medical Physiology “Richard Burian”, University of Belgrade, 11000 Belgrade, Serbia
- Correspondence:
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11
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Superoxide Radicals in the Execution of Cell Death. Antioxidants (Basel) 2022; 11:antiox11030501. [PMID: 35326151 PMCID: PMC8944419 DOI: 10.3390/antiox11030501] [Citation(s) in RCA: 87] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/01/2022] [Accepted: 03/01/2022] [Indexed: 12/24/2022] Open
Abstract
Superoxide is a primary oxygen radical that is produced when an oxygen molecule receives one electron. Superoxide dismutase (SOD) plays a primary role in the cellular defense against an oxidative insult by ROS. However, the resulting hydrogen peroxide is still reactive and, in the presence of free ferrous iron, may produce hydroxyl radicals and exacerbate diseases. Polyunsaturated fatty acids are the preferred target of hydroxyl radicals. Ferroptosis, a type of necrotic cell death induced by lipid peroxides in the presence of free iron, has attracted considerable interest because of its role in the pathogenesis of many diseases. Radical electrons, namely those released from mitochondrial electron transfer complexes, and those produced by enzymatic reactions, such as lipoxygenases, appear to cause lipid peroxidation. While GPX4 is the most potent anti-ferroptotic enzyme that is known to reduce lipid peroxides to alcohols, other antioxidative enzymes are also indirectly involved in protection against ferroptosis. Moreover, several low molecular weight compounds that include α-tocopherol, ascorbate, and nitric oxide also efficiently neutralize radical electrons, thereby suppressing ferroptosis. The removal of radical electrons in the early stages is of primary importance in protecting against ferroptosis and other diseases that are related to oxidative stress.
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12
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Jaboticaba (Myrciaria jaboticaba) Attenuates Ventricular Remodeling after Myocardial Infarction in Rats. Antioxidants (Basel) 2022; 11:antiox11020249. [PMID: 35204132 PMCID: PMC8868135 DOI: 10.3390/antiox11020249] [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: 11/24/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 02/04/2023] Open
Abstract
The cardiac remodeling after myocardial infarction is characterized by inflammation and oxidative stress. Thus, this study aimed to test the hypothesis that jaboticaba, due to its anti-inflammatory and antioxidants properties, attenuates cardiac remodeling after myocardial infarction. Wistar rats were submitted to myocardial infarction due to coronary artery occlusion, and divided into four experimental groups: C, sham control animals; I, animals submitted to myocardial infarction, received a standard diet; IJ2, animals submitted to myocardial infarction, received a standard diet plus 2% jaboticaba; and IJ4, animals submitted to myocardial infarction, received a standard diet plus 4% jaboticaba. After a three-month follow-up, echocardiography, histology, oxidative stress, and cardiac energy metabolism were analyzed. There was no difference in infarct size or mortality among the infarcted groups. The IJ4 group displayed improved diastolic function, as assessed by isovolumetric relaxation time normalized to the heart rate. As expected, the percentage of collagen was higher in all infarcted groups than in the C group. However, the IJ2 group had less collagen than groups I and IJ4. The IJ4 group presented lower PFK activity than I and IJ2, and lower pyruvate dehydrogenase activity than controls, whereas the IJ2 group showed no differences compared to the control group in both LDH and ATP synthase activity. The 2% and 4% doses attenuated lipid peroxidation and increased the activity of glutathione peroxidase compared with the I group. In conclusion, jaboticaba attenuated the remodeling process after myocardial infarction, which was associated with decreased oxidative stress and improved energy metabolism.
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13
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Rysz J, Gluba-Brzózka A, Rokicki R, Franczyk B. Oxidative Stress-Related Susceptibility to Aneurysm in Marfan's Syndrome. Biomedicines 2021; 9:biomedicines9091171. [PMID: 34572356 PMCID: PMC8467736 DOI: 10.3390/biomedicines9091171] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/23/2021] [Accepted: 09/01/2021] [Indexed: 01/01/2023] Open
Abstract
The involvement of highly reactive oxygen-derived free radicals (ROS) in the genesis and progression of various cardiovascular diseases, including arrhythmias, aortic dilatation, aortic dissection, left ventricular hypertrophy, coronary arterial disease and congestive heart failure, is well-established. It has also been suggested that ROS may play a role in aortic aneurysm formation in patients with Marfan's syndrome (MFS). This syndrome is a multisystem disorder with manifestations including cardiovascular, skeletal, pulmonary and ocular systems, however, aortic aneurysm and dissection are still the most life-threatening manifestations of MFS. In this review, we will concentrate on the impact of oxidative stress on aneurysm formation in patients with MFS as well as on possible beneficial effects of some agents with antioxidant properties. Mechanisms responsible for oxidative stress in the MFS model involve a decreased expression of superoxide dismutase (SOD) as well as enhanced expression of NAD(P)H oxidase, inducible nitric oxide synthase (iNOS) and xanthine oxidase. The results of studies have indicated that reactive oxygen species may be involved in smooth muscle cell phenotype switching and apoptosis as well as matrix metalloproteinase activation, resulting in extracellular matrix (ECM) remodeling. The progression of the thoracic aortic aneurysm was suggested to be associated with markedly impaired aortic contractile function and decreased nitric oxide-mediated endothelial-dependent relaxation.
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Affiliation(s)
- Jacek Rysz
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland; (J.R.); (B.F.)
| | - Anna Gluba-Brzózka
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland; (J.R.); (B.F.)
- Correspondence: or ; Tel.: +48-42-639-3750
| | - Robert Rokicki
- Clinic of Hand Surgery, Medical University of Lodz, 90-549 Lodz, Poland;
| | - Beata Franczyk
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland; (J.R.); (B.F.)
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14
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Rajgarhia A, Ayasolla KR, Zaghloul N, Lopez Da Re JM, Miller EJ, Ahmed M. Extracellular Superoxide Dismutase (EC-SOD) Regulates Gene Methylation and Cardiac Fibrosis During Chronic Hypoxic Stress. Front Cardiovasc Med 2021; 8:669975. [PMID: 34136546 PMCID: PMC8202000 DOI: 10.3389/fcvm.2021.669975] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/16/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic hypoxic stress induces epigenetic modifications mainly DNA methylation in cardiac fibroblasts, inactivating tumor suppressor genes (RASSF1A) and activating kinases (ERK1/2) leading to fibroblast proliferation and cardiac fibrosis. The Ras/ERK signaling pathway is an intracellular signal transduction critically involved in fibroblast proliferation. RASSF1A functions through its effect on downstream ERK1/2. The antioxidant enzyme, extracellular superoxide dismutase (EC-SOD), decreases oxidative stress from chronic hypoxia, but its effects on these epigenetic changes have not been fully explored. To test our hypothesis, we used an in-vitro model: wild-type C57B6 male mice (WT) and transgenic males with an extra copy of human hEC-SOD (TG). The studied animals were housed in hypoxia (10% O2) for 21 days. The right ventricular tissue was studied for cardiac fibrosis markers using RT-PCR and Western blot analyses. Primary C57BL6 mouse cardiac fibroblast tissue culture was used to study the in-vitro model, the downstream effects of RASSF-1 expression and methylation, and its relation to ERK1/2. Our findings showed a significant increase in cardiac fibrosis markers: Collagen 1, alpha smooth muscle actin (ASMA), and SNAIL, in the WT hypoxic animals as compared to the TG hypoxic group (p < 0.05). The expression of DNA methylation enzymes (DNMT 1&3b) was significantly increased in the WT hypoxic mice as compared to the hypoxic TG mice (p < 0.001). RASSF1A expression was significantly lower and ERK1/2 was significantly higher in hypoxia WT compared to the hypoxic TG group (p < 0.05). Use of SiRNA to block RASSF1A gene expression in murine cardiac fibroblast tissue culture led to increased fibroblast proliferation (p < 0.05). Methylation of the RASSF1A promoter region was significantly reduced in the TG hypoxic group compared to the WT hypoxic group (0.59 vs. 0.75, respectively). Based on our findings, we can speculate that EC-SOD significantly attenuates RASSF1A gene methylation and can alleviate cardiac fibrosis induced by hypoxia.
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Affiliation(s)
- Ayan Rajgarhia
- School of Medicine, Children's Mercy Hospital and University of Missouri-Kansas City, Kansas City, MO, United States
| | | | - Nahla Zaghloul
- Neonatal Division, University of Arizona, Tucson, AZ, United States
| | - Jorge M Lopez Da Re
- Neonatal Division, Orlando, Nemours Children's Hospital, Orlando, FL, United States
| | | | - Mohamed Ahmed
- Neonatal Division, University of Arizona, Tucson, AZ, United States
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15
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Li H, Yang H, Wang D, Zhang L, Ma T. Peroxiredoxin2 (Prdx2) Reduces Oxidative Stress and Apoptosis of Myocardial Cells Induced by Acute Myocardial Infarction by Inhibiting the TLR4/Nuclear Factor kappa B (NF-κB) Signaling Pathway. Med Sci Monit 2020; 26:e926281. [PMID: 33268762 PMCID: PMC7722772 DOI: 10.12659/msm.926281] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/07/2020] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Peroxiredoxin2 (Prdx2) is an endogenous peroxidase and has been found to reduce the oxidative burden in cells and thereby reduce cell damage and apoptosis. Therefore, the purpose of this study was to investigate the effect of Prdx2 on the oxidative level and apoptosis of myocardial cells after acute myocardial infarction (AMI). MATERIAL AND METHODS We constructed an AMI model for Sprague-Dawley rats by ligating the left anterior descending coronary artery. We determined the effect of Prdx2 on AMI by detecting changes in Prdx2 in myocardial tissue via western blot and qRT-PCR. In addition, we used recombinant Prdx2 protein to treat rats and detect changes in oxidative stress and apoptosis in rat myocardial tissue to verify the protective effect of Prdx2 on the rat heart. RESULTS The protein and mRNA expression of Prdx2 in myocardial tissue of rats in the AMI group was significantly lower than that in the control group. The oxidative and apoptotic levels of myocardial tissue in Prdx2-administered rats were significantly improved compared to the non-administered group, which was manifested by a decrease in reactive oxygen species (ROS) levels and a decrease in the expression of the caspase family. In addition, Prdx2 also inhibited p65 phosphorylation in myocardial tissues and inhibited TLR4/NF-kappaB signaling pathway activity. CONCLUSIONS The expression of Prdx2 was decreased in myocardial tissue after AMI. Prdx2 can reduce apoptosis and ROS caused by AMI by inhibiting the TLR4/NF-kB signaling pathway, thereby reducing myocardial injury caused by AMI.
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16
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Li X, Lin Y, Wang S, Zhou S, Ju J, Wang X, Chen Y, Xia M. Extracellular Superoxide Dismutase Is Associated With Left Ventricular Geometry and Heart Failure in Patients With Cardiovascular Disease. J Am Heart Assoc 2020; 9:e016862. [PMID: 32750295 PMCID: PMC7792241 DOI: 10.1161/jaha.120.016862] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Extracellular superoxide dismutase (Ec-SOD) is a major scavenger of reactive oxygen species. However, its relationships with abnormal left ventricular (LV) geometry patterns and heart failure (HF) are still unknown in patients with cardiovascular disease. Methods and Results A cross-sectional study was carried out to evaluate the association of serum Ec-SOD activity with LV geometry, as well as HF in 1047 patients with cardiovascular disease. All participants underwent standard echocardiography examination and measurement of serum Ec-SOD activity. Overall, we found a significantly decreased trend of serum Ec-SOD activity from subjects with normal geometry (147.96±15.94 U/mL), subjects with abnormal LV geometry without HF (140.19±20.12 U/mL), and subjects with abnormal LV geometry and overt HF (129.32±17.92 U/mL) after adjustment for potential confounders (P for trend <0.001). The downward trends remained significant in the concentric hypertrophy and eccentric hypertrophy groups after stratification by different LV geometry patterns. Multinomial logistic regression analysis showed that each 10 U/mL increase in serum Ec-SOD activity was associated with a 16.5% decrease in the odds of concentric remodeling without HF (odds ratio [OR], 0.835; 95% CI, 0.736-0.948), a 40.4% decrease in the odds of concentric hypertrophy with HF (OR, 0.596; 95% CI, 0.486-0.730), a 16.1% decrease in the odds of eccentric hypertrophy without HF (OR, 0.839; 95% CI, 0.729-0.965) and a 34.0% decrease in the odds of eccentric hypertrophy with HF (OR, 0.660; 95% CI, 0.565-0.772). Conclusions Serum Ec-SOD activity was independently associated with abnormal LV geometry patterns with and without overt HF. Our results indicate that Ec-SOD might be a potential link between LV structure remodeling and the development of subsequent HF in patients with cardiovascular disease. Registration URL: https://www.clinicaltrials.gov; Unique identifier NCT03351907.
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Affiliation(s)
- Xiuwen Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and HealthGuangzhouGuangdong ProvinceChina
- Department of NutritionSchool of Public HealthSun Yat‐sen University (Northern Campus)GuangzhouGuangdong ProvinceChina
| | - Yingying Lin
- Guangdong Provincial Key Laboratory of Food, Nutrition and HealthGuangzhouGuangdong ProvinceChina
- Department of NutritionSchool of Public HealthSun Yat‐sen University (Northern Campus)GuangzhouGuangdong ProvinceChina
| | - Shaohua Wang
- Department of CardiologySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouGuangdong ProvinceChina
| | - Shiyi Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and HealthGuangzhouGuangdong ProvinceChina
- Department of NutritionSchool of Public HealthSun Yat‐sen University (Northern Campus)GuangzhouGuangdong ProvinceChina
| | - Jingmeng Ju
- Guangdong Provincial Key Laboratory of Food, Nutrition and HealthGuangzhouGuangdong ProvinceChina
- Department of NutritionSchool of Public HealthSun Yat‐sen University (Northern Campus)GuangzhouGuangdong ProvinceChina
| | - Xiaohui Wang
- Guangdong Provincial Key Laboratory of Food, Nutrition and HealthGuangzhouGuangdong ProvinceChina
- Department of NutritionSchool of Public HealthSun Yat‐sen University (Northern Campus)GuangzhouGuangdong ProvinceChina
| | - Yangxin Chen
- Department of CardiologySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhouGuangdong ProvinceChina
| | - Min Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and HealthGuangzhouGuangdong ProvinceChina
- Department of NutritionSchool of Public HealthSun Yat‐sen University (Northern Campus)GuangzhouGuangdong ProvinceChina
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17
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Hohl M, Mayr M, Lang L, Nickel AG, Barallobre-Barreiro J, Yin X, Speer T, Selejan SR, Goettsch C, Erb K, Fecher-Trost C, Reil JC, Linz B, Ruf S, Hübschle T, Maack C, Böhm M, Sadowski T, Linz D. Cathepsin A contributes to left ventricular remodeling by degrading extracellular superoxide dismutase in mice. J Biol Chem 2020; 295:12605-12617. [PMID: 32647007 DOI: 10.1074/jbc.ra120.013488] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/29/2020] [Indexed: 11/06/2022] Open
Abstract
In the heart, the serine carboxypeptidase cathepsin A (CatA) is distributed between lysosomes and the extracellular matrix (ECM). CatA-mediated degradation of extracellular peptides may contribute to ECM remodeling and left ventricular (LV) dysfunction. Here, we aimed to evaluate the effects of CatA overexpression on LV remodeling. A proteomic analysis of the secretome of adult mouse cardiac fibroblasts upon digestion by CatA identified the extracellular antioxidant enzyme superoxide dismutase (EC-SOD) as a novel substrate of CatA, which decreased EC-SOD abundance 5-fold. In vitro, both cardiomyocytes and cardiac fibroblasts expressed and secreted CatA protein, and only cardiac fibroblasts expressed and secreted EC-SOD protein. Cardiomyocyte-specific CatA overexpression and increased CatA activity in the LV of transgenic mice (CatA-TG) reduced EC-SOD protein levels by 43%. Loss of EC-SOD-mediated antioxidative activity resulted in significant accumulation of superoxide radicals (WT, 4.54 μmol/mg tissue/min; CatA-TG, 8.62 μmol/mg tissue/min), increased inflammation, myocyte hypertrophy (WT, 19.8 μm; CatA-TG, 21.9 μm), cellular apoptosis, and elevated mRNA expression of hypertrophy-related and profibrotic marker genes, without affecting intracellular detoxifying proteins. In CatA-TG mice, LV interstitial fibrosis formation was enhanced by 19%, and the type I/type III collagen ratio was shifted toward higher abundance of collagen I fibers. Cardiac remodeling in CatA-TG was accompanied by an increased LV weight/body weight ratio and LV end diastolic volume (WT, 50.8 μl; CatA-TG, 61.9 μl). In conclusion, CatA-mediated EC-SOD reduction in the heart contributes to increased oxidative stress, myocyte hypertrophy, ECM remodeling, and inflammation, implicating CatA as a potential therapeutic target to prevent ventricular remodeling.
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Affiliation(s)
- Mathias Hohl
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany
| | - Manuel Mayr
- King's BHF Centre of Research Excellence, The James Black Centre, London, United Kingdom
| | - Lisa Lang
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany
| | - Alexander G Nickel
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany.,Universitätsklinikum Würzburg, Deutsches Zentrum für Herzinsuffizienz (DZHI), Comprehensive Heart Failure Center (CHFC), Würzburg, Germany
| | | | - Xiaoke Yin
- King's BHF Centre of Research Excellence, The James Black Centre, London, United Kingdom
| | - Thimoteus Speer
- Klinik für Innere Medizin IV, Universität des Saarlandes, Homburg/Saar, Germany
| | | | - Claudia Goettsch
- Medizinische Fakultät, Medizinische Klinik 1, Kardiologie, Universitätsklinikum, Aachen, Germany
| | - Katharina Erb
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany
| | - Claudia Fecher-Trost
- Institut für Experimentelle und Klinische Pharmakologie und Toxikologie Universität des Saarlandes, Homburg/Saar, Germany
| | - Jan-Christian Reil
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany.,Klinik für Innere Medizin II, Universitäres Herzzentrum, Lübeck, Germany
| | - Benedikt Linz
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sven Ruf
- Sanofi-Aventis Deutschland GmbH, Frankfurt, Germany
| | | | - Christoph Maack
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany.,Universitätsklinikum Würzburg, Deutsches Zentrum für Herzinsuffizienz (DZHI), Comprehensive Heart Failure Center (CHFC), Würzburg, Germany
| | - Michael Böhm
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany
| | | | - Dominik Linz
- Klinik für Innere Medizin III, Universität des Saarlandes, Homburg/Saar, Germany .,University Maastricht, Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands.,Department of Cardiology, Maastricht University Medical Centre, Maastricht, the Netherlands.,Centre for Heart Rhythm Disorders, Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
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18
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Guo H, Xu D, Kuroki M, Lu Z, Xu X, Geurts A, Osborn JW, Chen Y. Kidney failure, arterial hypertension and left ventricular hypertrophy in rats with loss of function mutation of SOD3. Free Radic Biol Med 2020; 152:787-796. [PMID: 31972339 DOI: 10.1016/j.freeradbiomed.2020.01.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/18/2020] [Accepted: 01/18/2020] [Indexed: 12/18/2022]
Abstract
Chronic kidney disease (CKD) poses a considerable medical and public health challenge, and the Dahl/Salt Sensitive (Dahl/SS) strain is often used for CKD study. Extracellular superoxide dismutase (SOD3) is important for removing extracellular superoxide anions and is highly expressed in renal tissue. Using a novel rat strain with loss-of-function mutation of SOD3 created by replacing glutamate 124 of SOD3 with aspartic acid (SOD3E124D rat strain), we determined the effect of SOD3 on renal function and blood pressure in Dahl/SS rats. We find that SOD3E124D rats are phenotypically indistinguishable from wild type rats through 8 weeks of age, but develop profound CKD characterized by focal necrosis and fibrosis, glomerulosclerosis, massive proteinaceous cast accumulation with tubular dilatation, interstitial fibrosis with hypertension and renal failure by 21 weeks. The SOD3E124D strain represents a unique rat model that spontaneously develops CKD in an age-dependent fashion. The finding that loss of SOD3 causes CKD indicates that extracellular oxidative stress contributes to CKD and renal failure.
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Affiliation(s)
- Haipeng Guo
- Lillehei Heart Institute and the Cardiovascular Division, University of Minnesota, Minneapolis, MN55455, USA; Department of Critical Care Medicine, Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, China
| | - Dachun Xu
- Lillehei Heart Institute and the Cardiovascular Division, University of Minnesota, Minneapolis, MN55455, USA; Cardiovascular Department, Shanghai Tenth People's Hospital, Tongji University, School of Medicine, Shanghai, China
| | - Marcos Kuroki
- Heart and Vascular Institute, Penn State College of Medicine, Hershey, PA, USA
| | - Zhongbing Lu
- Lillehei Heart Institute and the Cardiovascular Division, University of Minnesota, Minneapolis, MN55455, USA; College of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xin Xu
- Shanghai Anti-doping Laboratory, Shanghai University of Sport, Shanghai, 200438, China.
| | - Aron Geurts
- Human and Molecular Genetics Center, Cardiovascular Center, Department of Physiology, Medical College of Wisconsin, USA
| | | | - Yingjie Chen
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS39216, USA.
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19
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Dejanović VV, Stevuljević JK, Vukašinović A, Miljković M, Kafedzic S, Zdravković M, Ilić I, Hinić S, Cerović M, Stefanović M, Spasojević-Kalimanovska V, Memon L, Nešković AN, Bogavac-Stanojević N. Oxidative Stress and Inflammatory Markers PTX3, CypA, and HB-EGF: How Are They Linked in Patients With STEMI? Angiology 2020; 71:713-720. [PMID: 32372694 DOI: 10.1177/0003319720921724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We investigated circulating levels of inflammatory biomarkers pentraxin-3 (PTX3), cyclophilin A (CypA), and heparin-binding epidermal growth factor-like growth factor (HB-EGF); oxidative stress; and antioxidant status markers in the patients with ST-segment elevation acute myocardial infarction (STEMI) to better understand a relationship between inflammation and oxidative stress. We examined the impact of oxidative stress on high values of inflammatory parameters. The study included 87 patients with STEMI and 193 controls. We observed a positive correlation between PTX3 and HB-EGF (ρ = 0.24, P = .027), CyPA, and sulfhydryl (SH) groups (ρ = 0.25, P = .026), and a negative correlation between PTX3 and SH groups (ρ = -0.35, P = .001) in patients with STEMI. To better understand the effect of the examined parameters on the occurrence of high concentrations of inflammatory parameters, we grouped them using principal component analysis. This analysis identified the 4 most contributing factors. Optimal cutoff values for discrimination of patients with STEMI from controls were calculated for PTX3 and HB-EGF. An independent predictor for PTX3 above the cutoff value was a "metabolic-oxidative stress factor" comprised of glucose and oxidative stress marker prooxidant-antioxidant balance (odds ratio = 4.449, P = .030). The results show that higher PTX3 values will occur in patients having STEMI with greater metabolic and oxidative stress status values.
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Affiliation(s)
| | - Jelena Kotur Stevuljević
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Vukašinović
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Milica Miljković
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Srdjan Kafedzic
- Clinical Hospital Center Zemun, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Marija Zdravković
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia.,Clinical Hospital Center Bezanijska Kosa, Belgrade, Serbia
| | - Ivan Ilić
- Clinical Hospital Center Zemun, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Saša Hinić
- Clinical Hospital Center Bezanijska Kosa, Belgrade, Serbia
| | | | | | | | - Lidija Memon
- Clinical Hospital Center Bezanijska Kosa, Belgrade, Serbia
| | - Aleksandar N Nešković
- Clinical Hospital Center Zemun, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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20
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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: 75] [Impact Index Per Article: 18.8] [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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21
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Musa balbisiana Fruit Rich in Polyphenols Attenuates Isoproterenol-Induced Cardiac Hypertrophy in Rats via Inhibition of Inflammation and Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7147498. [PMID: 32082481 PMCID: PMC7007945 DOI: 10.1155/2020/7147498] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 12/26/2019] [Indexed: 12/24/2022]
Abstract
Musa balbisiana Colla (Family: Musaceae), commonly known as banana and native to India and other parts of Asia, is very rich in nutritional value and has strong antioxidant potential. In the present study, we have developed Musa balbisiana (MB) fruit pulp powder and evaluated its cardioprotective effect in cardiac hypertrophy, which is often associated with inflammation and oxidative stress. An ultra-high-pressure liquid chromatography-mass spectrometer (UPLC-MS/MS) has been used for the detection and systematic characterization of the phenolic compounds present in Musa balbisiana fruit pulp. The cardioprotective effect of MB was evaluated in a rat model of isoproterenol- (ISO-) induced cardiac hypertrophy by subcutaneous administration of isoproterenol (5 mg/kg−1/day−1), delivered through an alzet minipump for 14 days. Oral administration of MB fruit pulp powder (200 mg/kg/day) significantly (p < 0.001) decreased heart weight/tail length ratio and cardiac hypertrophy markers like ANP, BNP, β-MHC, and collagen-1 gene expression. MB also attenuated ISO-induced cardiac inflammation and oxidative stress. The in vivo data were further confirmed in vitro in H9c2 cells where the antihypertrophic and anti-inflammatory effect of the aqueous extract of MB was observed in the presence of ISO and lipopolysaccharide (LPS), respectively. This study strongly suggests that supplementation of dried Musa balbisiana fruit powder can be useful for the prevention of cardiac hypertrophy via the inhibition of inflammation and oxidative stress.
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22
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Jeremic N, Weber GJ, Theilen NT, Tyagi SC. Cardioprotective effects of high-intensity interval training are mediated through microRNA regulation of mitochondrial and oxidative stress pathways. J Cell Physiol 2019; 235:5229-5240. [PMID: 31823395 DOI: 10.1002/jcp.29409] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 08/26/2019] [Indexed: 12/14/2022]
Abstract
Human studies have shown high-intensity interval training (HIIT) has beneficial cardiovascular effects and is typically more time-efficient compared with traditional endurance exercise. The main goal of this study is to show the potential molecular and functional cardiovascular benefits of HIIT compared with endurance training (ET). Three groups of mice were used including sedentary-control, ET mice, and HIIT mice groups. Results indicated ejection fraction was increased in HIIT compared with ET while fractional shortening was increased in the HIIT group compared with both groups. Blood flow of the abdominal aorta was increased in both exercise groups compared with control. Increases in cross-sectional area and mitochondrial and antioxidative markers in HIIT compared with control were observed, along with several microRNAs. These findings indicate HIIT has specific cardiac-protective effects and may be a viable alternative to traditional ET as a cardiovascular preventative medicine intervention.
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Affiliation(s)
- Nevena Jeremic
- Department of Physiology, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Gregory J Weber
- Department of Physiology, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Nicholas T Theilen
- Department of Physiology, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Suresh C Tyagi
- Department of Physiology, School of Medicine, University of Louisville, Louisville, Kentucky
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23
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Shang L, Weng X, Wang D, Yue W, Mernaugh R, Amarnath V, Weir EK, Dudley SC, Xu Y, Hou M, Chen Y. Isolevuglandin scavenger attenuates pressure overload-induced cardiac oxidative stress, cardiac hypertrophy, heart failure and lung remodeling. Free Radic Biol Med 2019; 141:291-298. [PMID: 31254620 DOI: 10.1016/j.freeradbiomed.2019.06.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/19/2019] [Accepted: 06/25/2019] [Indexed: 12/20/2022]
Abstract
Increased levels of reactive isolevuglandins (IsoLGs) are associated with vascular inflammation and hypertension, two important factors affect heart failure (HF) development. The role of IsoLGs in HF development is unknown. Here we studied the role of IsoLG scavenger 2-hydroxybenzylamine (2-HOBA) in transverse aortic constriction (TAC) induced heart failure. We observed that TAC caused a significant increase of IsoLG protein adducts in cardiac and lung tissues in mice. Both IsoLG scavenger 2-hydroxybenzylamine (2-HOBA) and its less reactive isomer 4-hydroxybenzylamine (4-HOBA) significantly attenuated the left ventricular (LV) and lung IsoLGs in mice after TAC. 2-HOBA and 4-HOBA attenuated TAC-induced LV hypertrophy, heart failure, and the increase of lung weight in mice, and also improved TAC-induced LV dysfunction. Moreover, both 2-HOBA and 4-HOBA effectively attenuated LV cardiomyocyte hypertrophy, lung inflammation, lung fibrosis. These findings suggest that methods to reduce IsoLGs may be useful for HF therapy.
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Affiliation(s)
- Linlin Shang
- Shenyang Pharmaceutical University, Shenyang, Liaoning, China; Department of Cardiology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xinyu Weng
- Department of Cardiology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Dongzhi Wang
- Department of Cardiology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wenhui Yue
- Department of Cardiology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ray Mernaugh
- Department of Biochemistry, Vanderbilt University, Nashville, TN, USA
| | | | - E Kenneth Weir
- Lillehei Heart Institute and Cardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
| | - Samuel C Dudley
- Lillehei Heart Institute and Cardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
| | - Yawei Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
| | - Mingxiao Hou
- Shenyang Pharmaceutical University, Shenyang, Liaoning, China.
| | - Yingjie Chen
- Lillehei Heart Institute and Cardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, 55455, USA.
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24
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Mesquita TRR, Miguel-dos-Santos R, Jesus ICGD, de Almeida GKM, Fernandes VA, Gomes AAL, Guatimosim S, Martins-Silva L, Ferreira AJ, Capettini LDSA, Pesquero JL, Lauton-Santos S. Ablation of B1- and B2-kinin receptors causes cardiac dysfunction through redox-nitroso unbalance. Life Sci 2019; 228:121-127. [DOI: 10.1016/j.lfs.2019.04.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 04/24/2019] [Accepted: 04/26/2019] [Indexed: 01/03/2023]
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25
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Abstract
The objective of the present study is to evaluate the effect of epigallocatechin gallate (EGCG) on aging-mediated cardiac hypertrophy, fibrosis, and apoptosis. The Wistar albino rats were divided into 4 groups (n = 18). Group I: young (3 months), group II: aged (24-26 months), group III: aged + EGCG (200 mg/kg for 30 days), and group IV: young + EGCG. At the end of 30 days, EGCG administration to the aged animals showed significant (P < 0.001) reduction of low-density lipoprotein, very low-density lipoprotein, triglyceride, total cholesterol with concomitant increase of high-density lipoprotein (P < 0.001) when compared with aged rats. Increased (P < 0.001) heart volume, weight with concomitant increase of left ventricular wall thickness, and reduced ventricular cavity were observed in aged rats supplemented with EGCG compared with aged animals. Histology and histomorphometry study of aged animals treated with EGCG showed marked increases in the diameter and volume of cardiomyocytes with concomitant reduction of numerical density when compared with aged animals. Reduced reactive oxygen species (P < 0.001) production with association of increased antioxidant defense system (P < 0.001) in aged hearts supplemented with EGCG when compared with aged animals. TUNEL staining and fibrosis showed a marked increase in apoptotic cell death (P < 0.001) and collagen deposition (P < 0.001) in aged animals treated with EGCG when compared with aged animals. Aged animals treated with EGCG showed a marked increase in protein expression of TGFβ, TNFα, and nuclear factor kappa B (NF-κB) and significant (P < 0.001) alteration in the gene expression of TGFβ, TNFα, NF-κB, α-SMA, and Nrf2 when compared with aged animals. Taken together, it is evident that EGCG may potentially inhibit aging-induced cardiac hypertrophy, fibrosis, and apoptosis, thereby preserving cardiac function. The proposed mechanism would be inhibition of reactive oxygen species-dependent activation of TGFβ1, TNFα, and NF-κB signaling pathway. Hence, the present study suggests that EGCG can be useful to fight against aging-induced cardiac hypertrophy, fibrosis, and apoptosis.
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26
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de Oliveira JR, Camargo SEA, de Oliveira LD. Rosmarinus officinalis L. (rosemary) as therapeutic and prophylactic agent. J Biomed Sci 2019; 26:5. [PMID: 30621719 PMCID: PMC6325740 DOI: 10.1186/s12929-019-0499-8] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 01/02/2019] [Indexed: 12/22/2022] Open
Abstract
Rosmarinus officinalis L. (rosemary) is a medicinal plant native to the Mediterranean region and cultivated around the world. Besides the therapeutic purpose, it is commonly used as a condiment and food preservative. R. officinalis L. is constituted by bioactive molecules, the phytocompounds, responsible for implement several pharmacological activities, such as anti-inflammatory, antioxidant, antimicrobial, antiproliferative, antitumor and protective, inhibitory and attenuating activities. Thus, in vivo and in vitro studies were presented in this Review, approaching the therapeutic and prophylactic effects of R. officinalis L. on some physiological disorders caused by biochemical, chemical or biological agents. In this way, methodology, mechanisms, results, and conclusions were described. The main objective of this study was showing that plant products could be equivalent to the available medicines.
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Affiliation(s)
- Jonatas Rafael de Oliveira
- Departamento de Biociências e Diagnóstico Bucal, Instituto de Ciência e Tecnologia, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777 - Jardim São Dimas, São José dos Campos, SP, CEP 12245-000, Brazil.
| | | | - Luciane Dias de Oliveira
- Departamento de Biociências e Diagnóstico Bucal, Instituto de Ciência e Tecnologia, Universidade Estadual Paulista (UNESP), Av. Engenheiro Francisco José Longo, 777 - Jardim São Dimas, São José dos Campos, SP, CEP 12245-000, Brazil
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27
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Guo GL, Sun LQ, Sun MH, Xu HM. LncRNA SLC8A1-AS1 protects against myocardial damage through activation of cGMP-PKG signaling pathway by inhibiting SLC8A1 in mice models of myocardial infarction. J Cell Physiol 2018; 234:9019-9032. [PMID: 30378115 DOI: 10.1002/jcp.27574] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 09/17/2018] [Indexed: 12/13/2022]
Abstract
Extensive investigations into long noncoding RNAs (lncRNAs) in various diseases and cancers, including acute myocardial infarction (AMI) have been conducted. The current study aimed to investigate the role of lncRNA solute carrier family 8 member A1 antisense RNA 1 (SLC8A1-AS1) in myocardial damage by targeting solute carrier family 8 member A1 (SLC8A1) via cyclic guanosine 3',5'-monophosphate-protein kinase G (cGMP-PKG) signaling pathway in AMI mouse models. Differentially expressed lncRNA in AMI were initially screened and target relationship between lncRNA SLC8A1-AS1 and SLC8A1 was then verified. Infarct size, levels of inflammatory factors, biochemical indicators, and the positive expression of the SLC8A1 protein in AMI were subsequently determined. The expression of SLC8A1-AS1, SLC8A1, PKG1, PKG2, atrial natriuretic peptide, and brain natriuretic peptide was detected to assess the effect of SLC8A1-AS1 on SLC8A1 and cGMP-PKG. The respective contents of superoxide dismutase, lactate dehydrogenase (LDH), and malondialdehyde (MDA) were detected accordingly. Microarray data GSE66360 provided evidence indicating that SLC8A1-AS1 was poorly expressed in AMI. SLC8A1 was verified to be a target gene of lncRNA SLC8A1-AS1. SLC8A1-AS1 upregulation decreased levels of left ventricular end-systolic diameter, -dp/ dt max , interleukin 1β (IL-1β), IL-6, transforming growth factor α, nitric oxide, inducible nitric-oxide synthase, endothelial nitric-oxide synthase, infarct size, LDH activity and MDA content, and increased IL-10, left ventricular end-diastolic pressure and + dp/ dt max . Furthermore, the overexpression of SLC8A1-AS1 was noted to elicit an inhibitory effect on the cGMP-PKG signaling pathway via SLC8A1. In conclusion, lncRNA SLC8A1-AS1, by downregulating SLC8A1 and activating the cGMP-PKG signaling pathway, was observed to alleviate myocardial damage, inhibit the release of proinflammatory factors and reduce infarct size, ultimately protecting against myocardial damage.
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Affiliation(s)
- Gong-Liang Guo
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Li-Qun Sun
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Mei-Hua Sun
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Hai-Ming Xu
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, China
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28
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van der Pol A, van Gilst WH, Voors AA, van der Meer P. Treating oxidative stress in heart failure: past, present and future. Eur J Heart Fail 2018; 21:425-435. [PMID: 30338885 PMCID: PMC6607515 DOI: 10.1002/ejhf.1320] [Citation(s) in RCA: 432] [Impact Index Per Article: 72.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/20/2018] [Accepted: 08/23/2018] [Indexed: 12/11/2022] Open
Abstract
Advances in cardiovascular research have identified oxidative stress as an important pathophysiological pathway in the development and progression of heart failure. Oxidative stress is defined as the imbalance between the production of reactive oxygen species (ROS) and the endogenous antioxidant defence system. Under physiological conditions, small quantities of ROS are produced intracellularly, which function in cell signalling, and can be readily reduced by the antioxidant defence system. However, under pathophysiological conditions, the production of ROS exceeds the buffering capacity of the antioxidant defence system, resulting in cell damage and death. Over the last decades several studies have tried to target oxidative stress with the aim to improve outcome in patients with heart failure, with very limited success. The reasons as to why these studies failed to demonstrate any beneficial effects remain unclear. However, one plausible explanation might be that currently employed strategies, which target oxidative stress by exogenous inhibition of ROS production or supplementation of exogenous antioxidants, are not effective enough, while bolstering the endogenous antioxidant capacity might be a far more potent avenue for therapeutic intervention. In this review, we provide an overview of oxidative stress in the pathophysiology of heart failure and the strategies utilized to date to target this pathway. We provide novel insights into modulation of endogenous antioxidants, which may lead to novel therapeutic strategies to improve outcome in patients with heart failure.
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Affiliation(s)
- Atze van der Pol
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Perioperative Inflammation and Infection Group, Department of Medicine, Faculty of Medicine and Health Sciences, University of Oldenburg, Oldenburg, Germany
| | - Wiek H van Gilst
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Adriaan A Voors
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Peter van der Meer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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29
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Carter JD, Madamanchi NR, Stouffer GA, Runge MS, Cascio WE, Tong H. Ultrafine particulate matter exposure impairs vasorelaxant response in superoxide dismutase 2-deficient murine aortic rings. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2017; 81:106-115. [PMID: 29279024 PMCID: PMC6136421 DOI: 10.1080/15287394.2017.1420504] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 12/19/2017] [Indexed: 05/29/2023]
Abstract
Studies have linked exposure to ultrafine particulate matter (PM) and adverse cardiovascular events. PM-induced oxidative stress is believed to be a key mechanism underlying observed adverse vascular effects. Advanced age is one factor known to decrease antioxidant defenses and confer susceptibility to the detrimental vascular effects seen following PM exposure. The present study was designed to investigate the vasomotor responses following ultrafine PM exposure in wild type (WT) and superoxide dismutase 2-deficient (SOD2+/-) mice that possess decreased antioxidant defense. Thoracic aortic rings isolated from young and aged WT and SOD2+/- mice were exposed to ultrafine PM in a tissue bath system. Aortic rings were then constricted with increasing concentrations of phenylephrine, followed by relaxation with rising amounts of nitroglycerin (NTG). Data demonstrated that ultrafine PM decreased the relaxation response in both young WT and young SOD2+/- mouse aortas, and relaxation was significantly reduced in young SOD2+/- compared to WT mice. Ultrafine PM significantly diminished the NTG-induced relaxation response in aged compared to young mouse aortas. After ultrafine PM exposure, the relaxation response did not differ markedly between aged WT and aged SOD2+/- mice. Data demonstrated that the greater vascular effect in aortic rings in aged mice ex vivo after ultrafine PM exposure may be attributed to ultrafine PM-induced oxidative stress and loss of antioxidant defenses in aged vascular tissue. Consistent with this conclusion is the attenuation of NTG-induced relaxation response in young SOD2+/- mice. ABBREVIATIONS H2O2: hydrogen peroxide; NTG: nitroglycerin; PAH: polycyclic aromatic hydrocarbons; PE: l-phenylephrine; PM: particulate matter; ROS: reactive oxygen species; SOD2: superoxide dismutase 2 deficient; WT: wild type.
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Affiliation(s)
- Jacqueline D. Carter
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC, 27514
| | | | - George A. Stouffer
- McAllister Heart Institute, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27514
| | | | - Wayne E. Cascio
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC, 27514
| | - Haiyan Tong
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC, 27514
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30
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Heated naringin mitigate the genotoxicity effect of Mitomycin C in BALB/c mice through enhancing the antioxidant status. Biomed Pharmacother 2017; 97:1417-1423. [PMID: 29156531 DOI: 10.1016/j.biopha.2017.11.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 10/26/2017] [Accepted: 11/03/2017] [Indexed: 11/23/2022] Open
Abstract
A major problem with cancer chemotherapy is its severe toxic effects on non-target tissues. Assessment of natural products for their protective effect against anticancer drugs induced toxicity is gaining importance in cancer biology. The aim of the present study was to evaluate the effect of native and thermal treated naringin on the protective effect against mitomycin C (MMC) induced genotoxicity. The genotoxicity in liver kidney and brain cells isolated from Balb/C mice were evaluated by performing the comet assay. Antioxidant and lipid peroxidation assays were carried out to understand the protective effects of these compounds. The comet assay showed that heated and native naringin were not genotoxic at the tested dose (40 mg/kg b.w) on liver, kidney and brain cells. A significant decrease in DNA damages was observed, at the tested doses (20 mg/kg b.w and 40 mg/kg b.w) suggesting a protective role of these molecules against the genotoxicity induced by mitomycin C on liver, kidney and brain cells. Moreover, administration of MMC (6 mg/kg b.w.) altered the activities of glutathione peroxidase and superoxide dismutase accompanied by a significant increase of lipid peroxidation. Pretreatment of mouse with heated and native naringin before MMC administration significantly raised the glutathione peroxidase and superoxide dismutase activities followed by a reduced MMC-induced lipid peroxidation. Our study demonstrated that heat treatment of naringin preserve activities of native naringin. The genoprotective properties of heated and native naringin against MMC could be attributed to its antioxidant activities and its inhibitory effect on lipid peroxidation.
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31
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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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On the Origin of Superoxide Dismutase: An Evolutionary Perspective of Superoxide-Mediated Redox Signaling. Antioxidants (Basel) 2017; 6:antiox6040082. [PMID: 29084153 PMCID: PMC5745492 DOI: 10.3390/antiox6040082] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 10/23/2017] [Accepted: 10/27/2017] [Indexed: 12/15/2022] Open
Abstract
The field of free radical biology originated with the discovery of superoxide dismutase (SOD) in 1969. Over the last 5 decades, a plethora of research has been performed in species ranging from bacteria to mammals that has elucidated the molecular reaction, subcellular location, and specific isoforms of SOD. However, while humans have only begun to study this class of enzymes over the past 50 years, it has been estimated that these enzymes have existed for billions of years, and may be some of the original enzymes found in primitive life. As life evolved over this expanse of time, these enzymes have taken on new and different functional roles potentially in contrast to how they were originally derived. Herein, examination of the evolutionary history of these enzymes provides both an explanation and further inquiries into the modern-day role of SOD in physiology and disease.
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Tempol improves lipid profile and prevents left ventricular hypertrophy in LDL receptor gene knockout (LDLr-/-) mice on a high-fat diet. REVISTA PORTUGUESA DE CARDIOLOGIA (ENGLISH EDITION) 2017. [DOI: 10.1016/j.repce.2017.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Viana Gonçalves IC, Cerdeira CD, Poletti Camara E, Dias Garcia JA, Ribeiro Pereira Lima Brigagão M, Bessa Veloso Silva R, Bitencourt dos Santos G. Tempol improves lipid profile and prevents left ventricular hypertrophy in LDL receptor gene knockout (LDLr-/-) mice on a high-fat diet. Rev Port Cardiol 2017; 36:629-638. [DOI: 10.1016/j.repc.2017.02.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 02/07/2017] [Accepted: 02/13/2017] [Indexed: 12/21/2022] Open
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Steiner JL, Lang CH. Etiology of alcoholic cardiomyopathy: Mitochondria, oxidative stress and apoptosis. Int J Biochem Cell Biol 2017; 89:125-135. [PMID: 28606389 DOI: 10.1016/j.biocel.2017.06.009] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 06/07/2017] [Accepted: 06/08/2017] [Indexed: 12/16/2022]
Abstract
Putative mechanisms leading to the development of alcoholic cardiomyopathy (ACM) include the interrelated cellular processes of mitochondria metabolism, oxidative stress and apoptosis. As mitochondria fuel the constant energy demands of this continually contracting tissue, it is not surprising that alcohol-induced molecular changes in this organelle contribute to cardiac dysfunction and ACM. As the causal relationship of these processes with ACM has already been established, the primary objective of this review is to provide an update of the experimental findings to more completely understand the aforementioned mechanisms. Accordingly, recent data indicate that alcohol impairs mitochondria function assessed by membrane potential and respiratory chain activity. Indictors of oxidative stress including superoxide dismutase, glutathione metabolites and malondialdehyde are also adversely affected by alcohol oftentimes in a sex-dependent manner. Additionally, myocardial apoptosis is increased based on assessment of TUNEL staining and caspase activity. Recent work has also emerged linking alcohol-induced oxidative stress with apoptosis providing new insight on the codependence of these interrelated mechanisms in ACM. Attention is also given to methodological differences including the dose of alcohol, experimental model system and the use of males versus females to highlight inconsistencies and areas that would benefit from establishment of a consistent model.
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Affiliation(s)
- Jennifer L Steiner
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, United States.
| | - Charles H Lang
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, United States.
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36
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Murino Rafacho BP, Portugal dos Santos P, Gonçalves ADF, Fernandes AAH, Okoshi K, Chiuso-Minicucci F, Azevedo PS, Mamede Zornoff LA, Minicucci MF, Wang XD, Rupp de Paiva SA. Rosemary supplementation (Rosmarinus oficinallis L.) attenuates cardiac remodeling after myocardial infarction in rats. PLoS One 2017; 12:e0177521. [PMID: 28494028 PMCID: PMC5426768 DOI: 10.1371/journal.pone.0177521] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 04/29/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Myocardial infarction (MI) is one of the leading causes of morbidity and mortality worldwide. Dietary intervention on adverse cardiac remodeling after MI has significant clinical relevance. Rosemary leaves are a natural product with antioxidant/anti-inflammatory properties, but its effect on morphology and ventricular function after MI is unknown. METHODS AND RESULTS To determine the effect of the dietary supplementation of rosemary leaves on cardiac remodeling after MI, male Wistar rats were divided into 6 groups after sham procedure or experimental induced MI: 1) Sham group fed standard chow (SR0, n = 23); 2) Sham group fed standard chow supplemented with 0.02% rosemary (R002) (SR002, n = 23); 3) Sham group fed standard chow supplemented with 0.2% rosemary (R02) (SR02, n = 22); 4) group submitted to MI and fed standard chow (IR0, n = 13); 5) group submitted to MI and fed standard chow supplemented with R002 (IR002, n = 8); and 6) group submitted to MI and fed standard chow supplemented with R02 (IR02, n = 9). After 3 months of the treatment, systolic pressure evaluation, echocardiography and euthanasia were performed. Left ventricular samples were evaluated for: fibrosis, cytokine levels, apoptosis, energy metabolism enzymes, and oxidative stress. Rosemary dietary supplementation attenuated cardiac remodeling by improving energy metabolism and decreasing oxidative stress. Rosemary supplementation of 0.02% improved diastolic function and reduced hypertrophy after MI. Regarding rosemary dose, 0.02% and 0.2% for rats are equivalent to 11 mg and 110 mg for humans, respectively. CONCLUSION Our findings support further investigations of the rosemary use as adjuvant therapy in adverse cardiac remodeling.
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Affiliation(s)
| | | | | | | | - Katashi Okoshi
- Internal Medicine Department, Botucatu Medical School–UNESP, Botucatu/SP, Brazil
| | - Fernanda Chiuso-Minicucci
- Department of Microbiology and Immunology, Botucatu Biosciences Institute–UNESP, Botucatu/SP, Brazil
| | - Paula S. Azevedo
- Internal Medicine Department, Botucatu Medical School–UNESP, Botucatu/SP, Brazil
| | | | | | - Xiang-Dong Wang
- Nutrition and Cancer Biology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston/MA, United States of America
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Shi S, Guo Y, Lou Y, Li Q, Cai X, Zhong X, Li H. Sulfiredoxin involved in the protection of peroxiredoxins against hyperoxidation in the early hyperglycaemia. Exp Cell Res 2017; 352:273-280. [PMID: 28202395 DOI: 10.1016/j.yexcr.2017.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 02/10/2017] [Accepted: 02/11/2017] [Indexed: 01/22/2023]
Abstract
As a direct consequence of hyperglycaemia, the excessive generation of ROS is central to the pathogenesis of diabetic cardiomyopathy. We hypothesize that stimulation of high glucose (HG) results in an increased sulfiredoxin (Srx) expression, which regulates ROS signaling through reducing the hyperoxidized peroxiredoxins (Prxs). We show that hyperoxidized Prxs were initially reduced in the preliminary stage but then dramatically increased in advanced stage and these changes corresponded to a significant increase of Srx expression in the heart of diabetic rats. These time-dependent changes were also confirmed in neonatal cardiomyocytes and H9c2 cells treated with HG. Moreover, the reduction rate of hyperoxidized Prxs was greatly improved in the HG 24h group, which had an elevated expression of Srx. Our data also show that HG-induced AP1 activation and Srx expression were almost abolished by JNK inhibitor and N-acetylcysteine (NAC). In addition, siRNA-Srx suppressed HG-induced ANP and β-MHC gene expression. These observations suggest that activation of AP1 induced by HG is important for the expression of Srx and the reduction of hyperoxidized Prxs in cardiomyocytes. This Srx induction maybe is the pivotal compensatory protection mechanism against oxidative stress in diabetes or hyperglycaemia. Most interestingly, hyperoxidized Prxs/Srx pathway may be involved in the cardiac hypertrophy signaling of diabetes.
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Affiliation(s)
- Sa Shi
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, China
| | - Yunqiu Guo
- Department of Histology and Embryology, Harbin Medical University, Harbin 150081, China
| | - Yanping Lou
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, China
| | - Quanfeng Li
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, China
| | - Xiaona Cai
- Department of Blood transfusion, Jiamusi Central Hospital, Jiamusi 154000, China
| | - Xin Zhong
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, China.
| | - Hong Li
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, China.
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Koga M, Serritella AV, Sawa A, Sedlak TW. Implications for reactive oxygen species in schizophrenia pathogenesis. Schizophr Res 2016; 176:52-71. [PMID: 26589391 DOI: 10.1016/j.schres.2015.06.022] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/20/2015] [Accepted: 06/23/2015] [Indexed: 12/18/2022]
Abstract
Oxidative stress is a well-recognized participant in the pathophysiology of multiple brain disorders, particularly neurodegenerative conditions such as Alzheimer's and Parkinson's diseases. While not a dementia, a wide body of evidence has also been accumulating for aberrant reactive oxygen species and inflammation in schizophrenia. Here we highlight roles for oxidative stress as a common mechanism by which varied genetic and epidemiologic risk factors impact upon neurodevelopmental processes that underlie the schizophrenia syndrome. While there is longstanding evidence that schizophrenia may not have a single causative lesion, a common pathway involving oxidative stress opens the possibility for intervention at susceptible phases.
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Affiliation(s)
- Minori Koga
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA
| | - Anthony V Serritella
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA
| | - Akira Sawa
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA
| | - Thomas W Sedlak
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 3-166, Baltimore, MD 21287, USA.
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van Deel E, Ridwan Y, van Vliet JN, Belenkov S, Essers J. In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography. J Vis Exp 2016:53603. [PMID: 26967592 PMCID: PMC4828165 DOI: 10.3791/53603] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The use of Micro-Computed Tomography (MicroCT) for in vivo studies of small animals as models of human disease has risen tremendously due to the fact that MicroCT provides quantitative high-resolution three-dimensional (3D) anatomical data non-destructively and longitudinally. Most importantly, with the development of a novel preclinical iodinated contrast agent called eXIA160, functional and metabolic assessment of the heart became possible. However, prior to the advent of commercial MicroCT scanners equipped with X-ray flat-panel detector technology and easy-to-use cardio-respiratory gating, preclinical studies of cardiovascular disease (CVD) in small animals required a MicroCT technologist with advanced skills, and thus were impractical for widespread implementation. The goal of this work is to provide a practical guide to the use of the high-speed Quantum FX MicroCT system for comprehensive determination of myocardial global and regional function along with assessment of myocardial perfusion, metabolism and viability in healthy mice and in a cardiac ischemia mouse model induced by permanent occlusion of the left anterior descending coronary artery (LAD).
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Affiliation(s)
- Elza van Deel
- Department of Genetics, Erasmus MC, Rotterdam; Department of Experimental Cardiology, Erasmus MC, Rotterdam
| | | | | | | | - Jeroen Essers
- Department of Genetics, Erasmus MC, Rotterdam; Department of Vascular Surgery, Erasmus MC, Rotterdam; Department of Radiation Oncology, Erasmus MC, Rotterdam;
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Ras oncogene-mediated progressive silencing of extracellular superoxide dismutase in tumorigenesis. BIOMED RESEARCH INTERNATIONAL 2015; 2015:780409. [PMID: 26550576 PMCID: PMC4624945 DOI: 10.1155/2015/780409] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/31/2015] [Indexed: 02/03/2023]
Abstract
Extracellular superoxide dismutase (SOD3) is a secreted enzyme that uses superoxide anion as a substrate in a dismutase reaction that results in the formation of hydrogen peroxide. Both of these reactive oxygen species affect growth signaling in cells. Although SOD3 has growth-supporting characteristics, the expression of SOD3 is downregulated in epithelial cancer cells. In the current work, we studied the mechanisms regulating SOD3 expression in vitro using thyroid cell models representing different stages of thyroid cancer. We demonstrate that a low level of RAS activation increases SOD3 mRNA synthesis that then gradually decreases with increasing levels of RAS activation and the decreasing degree of differentiation of the cancer cells. Our data indicate that SOD3 regulation can be divided into two classes. The first class involves RAS–driven reversible regulation of SOD3 expression that can be mediated by the following mechanisms: RAS GTPase regulatory genes that are responsible for SOD3 self-regulation; RAS-stimulated p38 MAPK activation; and RAS-activated increased expression of the mir21 microRNA, which inversely correlates with sod3 mRNA expression. The second class involves permanent silencing of SOD3 mediated by epigenetic DNA methylation in cells that represent more advanced cancers. Therefore, the work suggests that SOD3 belongs to the group of ras oncogene-silenced genes.
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van Deel ED, Octavia Y, de Boer M, Juni RP, Tempel D, van Haperen R, de Crom R, Moens AL, Merkus D, Duncker DJ. Normal and high eNOS levels are detrimental in both mild and severe cardiac pressure-overload. J Mol Cell Cardiol 2015; 88:145-54. [PMID: 26436984 DOI: 10.1016/j.yjmcc.2015.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 09/28/2015] [Accepted: 10/01/2015] [Indexed: 12/20/2022]
Abstract
Nitric oxide (NO) produced by endothelial NO synthase (eNOS) exerts beneficial effects in a variety of cardiovascular disease states. Studies on the benefit of eNOS activity in pressure-overload cardiac hypertrophy and dysfunction produced by aortic stenosis are equivocal, which may be due to different expression levels of eNOS or different severities of pressure-overload. Consequently, we investigated the effects of eNOS-expression level on cardiac hypertrophy and dysfunction produced by mild or severe pressure-overload. To unravel the impact of eNOS on pressure-overload cardiac dysfunction we subjected eNOS deficient, wildtype and eNOS overexpressing transgenic (eNOS-Tg) mice to 8weeks of mild or severe transverse aortic constriction (TAC) and studied cardiac geometry and function at the whole organ and tissue level. In both mild and severe TAC, lack of eNOS ameliorated, whereas eNOS overexpression aggravated, TAC-induced cardiac remodeling and dysfunction. Moreover, the detrimental effects of eNOS in severe TAC were associated with aggravation of TAC-induced NOS-dependent oxidative stress and by further elevation of eNOS monomer levels, consistent with enhanced eNOS uncoupling. In the presence of TAC, scavenging of reactive oxygen species with N-acetylcysteine reduced eNOS S-glutathionylation, eNOS monomer and NOS-dependent superoxide levels in eNOS-Tg mice to wildtype levels. Accordingly, N-acetylcysteine improved cardiac function in eNOS-Tg but not in wildtype mice with TAC. In conclusion, independent of the severity of TAC, eNOS aggravates cardiac remodeling and dysfunction, which appears due to TAC-induced eNOS uncoupling and superoxide production.
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Affiliation(s)
- Elza D van Deel
- Experimental Cardiology, Thorax Center, Cardiovascular Research School COEUR, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Yanti Octavia
- Experimental Cardiology, Thorax Center, Cardiovascular Research School COEUR, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, University of Maastricht, Maastricht, The Netherlands
| | - Martine de Boer
- Experimental Cardiology, Thorax Center, Cardiovascular Research School COEUR, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rio P Juni
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, University of Maastricht, Maastricht, The Netherlands
| | - Dennie Tempel
- Experimental Cardiology, Thorax Center, Cardiovascular Research School COEUR, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rien van Haperen
- Department of Cell Biology and Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rini de Crom
- Department of Cell Biology and Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - An L Moens
- Department of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, University of Maastricht, Maastricht, The Netherlands
| | - Daphne Merkus
- Experimental Cardiology, Thorax Center, Cardiovascular Research School COEUR, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Dirk J Duncker
- Experimental Cardiology, Thorax Center, Cardiovascular Research School COEUR, Erasmus University Medical Center, Rotterdam, The Netherlands.
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Mushtaq S, Ali T, Javed Q, Tabassum S, Murtaza I. N-Acetyl Cysteine Inhibits Endothelin-1-Induced ROS Dependent Cardiac Hypertrophy through Superoxide Dismutase Regulation. CELL JOURNAL 2015. [PMID: 26199914 PMCID: PMC4503849 DOI: 10.22074/cellj.2016.3746] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Objective Oxidative stress down regulates antioxidant enzymes including superoxide
dismutase (SOD) and contributes to the development of cardiac hypertrophy. N-Acetyl
cysteine (NAC) can enhance the SOD activity, so the aim of this study is to highlight the
inhibitory role of NAC against endothelin-1 (ET-1)-induced cardiac hypertrophy.
Materials and Methods In this experimental study at QAU from January, 2013 to March,
2013. ET-1 (50 µg/kg) and NAC (50 mg/kg) were given intraperitoneally to 6-day old neonatal
rats in combination or alone. All rats were sacrificed 15 days after the final injection. Histological analysis was carried out to observe the effects caused by both drugs. Reactive oxygen
species (ROS) analysis and SOD assay were also carried out. Expression level of hyper-
trophic marker, brain natriuretic peptide (BNP), was detected by western blotting.
Results Our findings showed that ET-1-induced cardiac hypertrophy leading towards
heart failure was due to the imbalance of different parameters including free radical-induced oxidative stress and antioxidative enzymes such as SOD. Furthermore NAC acted
as an antioxidant and played inhibitory role against ROS-dependent hypertrophy via regulatory role of SOD as a result of oxidative response associated with hypertrophy.
Conclusion ET-1-induced hypertrophic response is associated with increased ROS production and decreased SOD level, while NAC plays a role against free radicals-induced
oxidative stress via SOD regulation.
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Affiliation(s)
- Sobia Mushtaq
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Tahir Ali
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Qamar Javed
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Sobia Tabassum
- Department of Biotechnology, International Islamic University, Islamabad, Pakistan
| | - Iram Murtaza
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
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Gabriel-Costa D, da Cunha TF, Bechara LRG, Fortunato RS, Bozi LHM, Coelho MDA, Barreto-Chaves ML, Brum PC. Lactate up-regulates the expression of lactate oxidation complex-related genes in left ventricular cardiac tissue of rats. PLoS One 2015; 10:e0127843. [PMID: 25996919 PMCID: PMC4440754 DOI: 10.1371/journal.pone.0127843] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 04/20/2015] [Indexed: 11/18/2022] Open
Abstract
Background Besides its role as a fuel source in intermediary metabolism, lactate has been considered a signaling molecule modulating lactate-sensitive genes involved in the regulation of skeletal muscle metabolism. Even though the flux of lactate is significantly high in the heart, its role on regulation of cardiac genes regulating lactate oxidation has not been clarified yet. We tested the hypothesis that lactate would increase cardiac levels of reactive oxygen species and up-regulate the expression of genes related to lactate oxidation complex. Methods/Principal Findings Isolated hearts from male adult Wistar rats were perfused with control, lactate or acetate (20mM) added Krebs-Henseleit solution during 120 min in modified Langendorff apparatus. Reactive oxygen species (O2●-/H2O2) levels, and NADH and NADPH oxidase activities (in enriched microsomal or plasmatic membranes, respectively) were evaluated by fluorimetry while SOD and catalase activities were evaluated by spectrophotometry. mRNA levels of lactate oxidation complex and energetic enzymes MCT1, MCT4, HK, LDH, PDH, CS, PGC1α and COXIV were quantified by real time RT-PCR. Mitochondrial DNA levels were also evaluated. Hemodynamic parameters were acquired during the experiment. The key findings of this work were that lactate elevated cardiac NADH oxidase activity but not NADPH activity. This response was associated with increased cardiac O2●-/H2O2 levels and up-regulation of MCT1, MCT4, LDH and PGC1α with no changes in HK, PDH, CS, COXIV mRNA levels and mitochondrial DNA levels. Lactate increased NRF-2 nuclear expression and SOD activity probably as counter-regulatory responses to increased O2●-/H2O2. Conclusions Our results provide evidence for lactate-induced up-regulation of lactate oxidation complex associated with increased NADH oxidase activity and cardiac O2●-/H2O2 driving to an anti-oxidant response. These results unveil lactate as an important signaling molecule regulating components of the lactate oxidation complex in cardiac muscle.
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Affiliation(s)
| | | | | | - Rodrigo Soares Fortunato
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | - Patricia Chakur Brum
- School of physical Education and Sport, University of São Paulo, São Paulo, Brazil
- * E-mail:
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Wang Y, Tian Z, Zang W, Jiang H, Li Y, Wang S, Chen S. Exercise training reduces insulin resistance in postmyocardial infarction rats. Physiol Rep 2015; 3:3/4/e12339. [PMID: 25907785 PMCID: PMC4425954 DOI: 10.14814/phy2.12339] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Myocardial infarction (MI) induces cardiac dysfunction and insulin resistance (IR). This study examines the effects of MI-related IR on vasorelaxation and its underlying mechanisms, with a specific focus on the role of exercise in reversing the impaired vasorelaxation. Adult male Sprague-Dawley rats were divided into three groups: Sham, MI, and MI+Exercise. MI+Exercise rats were subjected to 8 weeks of treadmill training. Cardiac contraction, myocardial and arterial structure, vasorelaxation, levels of inflammatory cytokines, expression of eNOS and TNF-α, and activation of PI3K/Akt/eNOS and p38 mitogen-activated protein kinase (p38 MAPK) were determined in aortas. MI significantly impaired endothelial structure and vasodilation (P < 0.05-0.01), as indicated by decreased arterial vasorelaxation to ACh and insulin. MI also attenuated the myocardial contractile response, decreased aortic PI3K/Akt/eNOS expression and phosphorylation by insulin, and increased IL-1β, IL-6, and TNF-α expression and p38 MAPK activity (P < 0.05-0.01). Exercise improved insulin sensitivity in aortas, facilitated myocardial contractile response and arterial vasorelaxation to ACh and insulin, and increased arterial PI3K/Akt/eNOS activity. Moreover, exercise markedly reversed increased p38 MAPK activity and normalized inflammatory cytokines in post-MI arteries. Inhibition of PI3K with LY-294002, and eNOS with L-NAME significantly blocked arterial vasorelaxation and PI3K/Akt/eNOS phosphorylation in response to insulin. In conclusion, these results demonstrate that endothelial dysfunction in response to insulin plays an important role in MI-related IR. The reversal of IR by exercise is most likely associated with normalizing inflammatory cytokines, increasing the activation of PI3K/Akt/eNOS, and reducing the activation of p38 MAPK.
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Affiliation(s)
- Youhua Wang
- Department of Physical Education, Shaanxi Normal University, Xi'an, Shaanxi, China, Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Zhenjun Tian
- Department of Physical Education, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Weijin Zang
- Department of Pharmacology, Xi'an Jiaotong University, College of Medicine Xi'an, Shaanxi, China
| | - Hongke Jiang
- Department of Pharmacology, Xi'an Jiaotong University, College of Medicine Xi'an, Shaanxi, China
| | - Youyou Li
- Department of Physiology and Department of Cardiology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shengpeng Wang
- Department of Pharmacology, Xi'an Jiaotong University, College of Medicine Xi'an, Shaanxi, China
| | - Shengfeng Chen
- Department of Physical Education, Shaanxi Normal University, Xi'an, Shaanxi, China
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Call JA, Chain KH, Martin KS, Lira VA, Okutsu M, Zhang M, Yan Z. Enhanced skeletal muscle expression of extracellular superoxide dismutase mitigates streptozotocin-induced diabetic cardiomyopathy by reducing oxidative stress and aberrant cell signaling. Circ Heart Fail 2015; 8:188-97. [PMID: 25504759 PMCID: PMC4445759 DOI: 10.1161/circheartfailure.114.001540] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 12/04/2014] [Indexed: 01/17/2023]
Abstract
BACKGROUND Exercise training enhances extracellular superoxide dismutase (EcSOD) expression in skeletal muscle and elicits positive health outcomes in individuals with diabetes mellitus. The goal of this study was to determine if enhanced skeletal muscle expression of EcSOD is sufficient to mitigate streptozotocin-induced diabetic cardiomyopathy. METHODS AND RESULTS Exercise training promotes EcSOD expression in skeletal muscle and provides protection against diabetic cardiomyopathy; however, it is not known if enhanced expression of EcSOD in skeletal muscle plays a functional role in this protection. Here, we show that skeletal muscle-specific EcSOD transgenic mice are protected from cardiac hypertrophy, fibrosis, and dysfunction under the condition of type 1 diabetes mellitus induced by streptozotocin injection. We also show that both exercise training and muscle-specific transgenic expression of EcSOD result in elevated EcSOD protein in the blood and heart without increased transcription in the heart, suggesting that enhanced expression of EcSOD from skeletal muscle redistributes to the heart. Importantly, cardiac tissue in transgenic mice displayed significantly reduced oxidative stress, aberrant cell signaling, and inflammatory cytokine expression compared with wild-type mice under the same diabetic condition. CONCLUSIONS Enhanced expression of EcSOD in skeletal muscle is sufficient to mitigate streptozotocin-induced diabetic cardiomyopathy through attenuation of oxidative stress, aberrant cell signaling, and inflammation, suggesting a cross-organ mechanism by which exercise training improves cardiac function in diabetes mellitus.
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Affiliation(s)
- Jarrod A Call
- From the Departments of Medicine (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), Pharmacology (Z.Y.), Molecular Physiology and Biological Physics (Z.Y.), Center for Skeletal Muscle Research at the Robert M. Berne Cardiovascular Research Center (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), and Department of Biomedical Engineering (K.S.M.), University of Virginia, Charlottesville
| | - Kristopher H Chain
- From the Departments of Medicine (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), Pharmacology (Z.Y.), Molecular Physiology and Biological Physics (Z.Y.), Center for Skeletal Muscle Research at the Robert M. Berne Cardiovascular Research Center (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), and Department of Biomedical Engineering (K.S.M.), University of Virginia, Charlottesville
| | - Kyle S Martin
- From the Departments of Medicine (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), Pharmacology (Z.Y.), Molecular Physiology and Biological Physics (Z.Y.), Center for Skeletal Muscle Research at the Robert M. Berne Cardiovascular Research Center (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), and Department of Biomedical Engineering (K.S.M.), University of Virginia, Charlottesville
| | - Vitor A Lira
- From the Departments of Medicine (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), Pharmacology (Z.Y.), Molecular Physiology and Biological Physics (Z.Y.), Center for Skeletal Muscle Research at the Robert M. Berne Cardiovascular Research Center (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), and Department of Biomedical Engineering (K.S.M.), University of Virginia, Charlottesville
| | - Mitsuharu Okutsu
- From the Departments of Medicine (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), Pharmacology (Z.Y.), Molecular Physiology and Biological Physics (Z.Y.), Center for Skeletal Muscle Research at the Robert M. Berne Cardiovascular Research Center (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), and Department of Biomedical Engineering (K.S.M.), University of Virginia, Charlottesville
| | - Mei Zhang
- From the Departments of Medicine (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), Pharmacology (Z.Y.), Molecular Physiology and Biological Physics (Z.Y.), Center for Skeletal Muscle Research at the Robert M. Berne Cardiovascular Research Center (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), and Department of Biomedical Engineering (K.S.M.), University of Virginia, Charlottesville
| | - Zhen Yan
- From the Departments of Medicine (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), Pharmacology (Z.Y.), Molecular Physiology and Biological Physics (Z.Y.), Center for Skeletal Muscle Research at the Robert M. Berne Cardiovascular Research Center (J.A.C., K.H.C., V.A.L., M.O., M.Z., Z.Y.), and Department of Biomedical Engineering (K.S.M.), University of Virginia, Charlottesville.
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Abstract
In the present study, we cloned and sequenced the mRNAs of the Sod3 [extracellular Cu Zn SOD (superoxide dismutase)] gene in Drosophila and identified two mRNA products formed by alternative splicing. These products code for a long and short protein derived from the four transcripts found in global expression studies (Flybase numbers Dmel\CG9027, FBgn0033631). Both mRNA process variants contain an extracellular signalling sequence, a region of high homology to the Sod1 (cytoplasmic Cu Zn SOD) including a conserved AUG start, with the longer form also containing a hydrophobic tail. The two fully processed transcripts are homologous to Caenorhabditis elegans Sod3 mRNA showing the same processing pattern. Using an established KG p-element+ insertion line (KG06029), we demonstrate that the Sod3 codes for an active Cu Zn SOD. We found differing expression patterns across sex with higher levels of expression of Sod3 in females. There is a correlation of Sod1 and Sod3 gene expression and activity that can explain why Sod3 was not seen in earlier studies of Sod1. Finally, we found no effect on lifespan with the Sod3 hypomorph mutation (Sod3KG06029) but did observe a significant increase in resistance to paraquat and H2O2 (hydrogen peroxide). Extracellular superoxide dismutase (SOD3) in Drosophila is characterized for mRNA splice variants and sex-specific expression. A SOD3 mutant reveals no effect on longevity, enhanced resistance to paraquat and H202, and provided evidence suggesting an interaction with other superoxide dismutases.
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The role of Nrf2-mediated pathway in cardiac remodeling and heart failure. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:260429. [PMID: 25101151 PMCID: PMC4102082 DOI: 10.1155/2014/260429] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 04/12/2014] [Accepted: 04/30/2014] [Indexed: 12/30/2022]
Abstract
Heart failure (HF) is frequently the consequence of sustained, abnormal neurohormonal, and mechanical stress and remains a leading cause of death worldwide. The key pathophysiological process leading to HF is cardiac remodeling, a term referring to maladaptation to cardiac stress at the molecular, cellular, tissue, and organ levels. HF and many of the conditions that predispose one to HF are associated with oxidative stress. Increased generation of reactive oxygen species (ROS) in the heart can directly lead to increased necrosis and apoptosis of cardiomyocytes which subsequently induce cardiac remodeling and dysfunction. Nuclear factor-erythroid-2- (NF-E2-) related factor 2 (Nrf2) is a transcription factor that controls the basal and inducible expression of a battery of antioxidant genes and other cytoprotective phase II detoxifying enzymes that are ubiquitously expressed in the cardiovascular system. Emerging evidence has revealed that Nrf2 and its target genes are critical regulators of cardiovascular homeostasis via the suppression of oxidative stress, which is the key player in the development and progression of HF. The purpose of this review is to summarize evidence that activation of Nrf2 enhances endogenous antioxidant defenses and counteracts oxidative stress-associated cardiac remodeling and HF.
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Soto ME, Soria-Castro E, Lans VG, Ontiveros EM, Mejía BIH, Hernandez HJM, García RB, Herrera V, Pérez-Torres I. Analysis of oxidative stress enzymes and structural and functional proteins on human aortic tissue from different aortopathies. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:760694. [PMID: 25101153 PMCID: PMC4102031 DOI: 10.1155/2014/760694] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 05/28/2014] [Accepted: 05/28/2014] [Indexed: 01/15/2023]
Abstract
The role of oxidative stress in different aortopathies is evaluated. Thirty-two tissue samples from 18 men and 14 women were divided into: 4 control (C) subjects, 11 patients with systemic arterial hypertension (SAH), 4 with variants of Marfan's syndrome (MV), 9 with Marfan's syndrome (M), 2 with Turner's syndrome, and 2 with Takayasu's arteritis (TA). Aorta fragments were homogenized. Lipoperoxidation (LPO), copper-zinc and manganese superoxide dismutase (Mn and Cu-Zn-SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione S-transferase (GST), endothelial nitric oxide synthase (eNOS), nitrates and nitrites (NO3(-)/NO2(-)), and type IV collagen, and laminin were evaluated. There was an increase in Mn- and Cu-Zn-SOD activity in SAH, MV, M, and Turner's syndrome. There was also an increase in CAT activity in M and Turner' syndrome. GPx and GST activity decreased and LPO increased in all groups. eNOS was decreased in SAH, MV, and M and NO3 (-)/NO2 (-) were increased in SAH and TA. Type IV collagen was decreased in Turner's syndrome and TA. Laminin γ-1 was decreased in MV and increased in M. In conclusion, similarities and differences in oxidative stress in the different aortopathies studied including pathologies with aneurysms were found with alterations in SOD, CAT, GPx, GST, and eNOS activity that modify subendothelial basement membrane proteins.
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Affiliation(s)
- María Elena Soto
- Immunology Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Elizabeth Soria-Castro
- Pathology Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Verónica Guarner Lans
- Physiology Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Eleazar Muruato Ontiveros
- Cardiovascular Surgery Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Benjamín Iván Hernández Mejía
- Cardiovascular Surgery Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Humberto Jorge Martínez Hernandez
- Cardiovascular Surgery Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Rodolfo Barragán García
- Cardiovascular Surgery Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Valentín Herrera
- Cardiovascular Surgery Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
| | - Israel Pérez-Torres
- Pathology Department, National Institute of Cardiology "Ignacio Chavez", Juan Badiano 1, Sección XVI, Tlalpan, 14080 Mexico City, DF, Mexico
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Kang DH, Kang SW. Targeting cellular antioxidant enzymes for treating atherosclerotic vascular disease. Biomol Ther (Seoul) 2014; 21:89-96. [PMID: 24009865 PMCID: PMC3762320 DOI: 10.4062/biomolther.2013.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 03/12/2013] [Indexed: 02/04/2023] Open
Abstract
Atherosclerotic vascular dysfunction is a chronic inflammatory process that spreads from the fatty streak and foam cells through lesion progression. Therefore, its early diagnosis and prevention is unfeasible. Reactive oxygen species (ROS) play important roles in the pathogenesis of atherosclerotic vascular disease. Intracellular redox status is tightly regulated by oxidant and antioxidant systems. Imbalance in these systems causes oxidative or reductive stress which triggers cellular damage or aberrant signaling, and leads to dysregulation. Paradoxically, large clinical trials have shown that non-specific ROS scavenging by antioxidant vitamins is ineffective or sometimes harmful. ROS production can be locally regulated by cellular antioxidant enzymes, such as superoxide dismutases, catalase, glutathione peroxidases and peroxiredoxins. Therapeutic approach targeting these antioxidant enzymes might prove beneficial for prevention of ROS-related atherosclerotic vascular disease. Conversely, the development of specific antioxidant enzyme-mimetics could contribute to the clinical effectiveness.
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Affiliation(s)
- Dong Hoon Kang
- Division of Life and Pharmaceutical Science and Center for Cell Signaling and Drug Discovery Research, Ewha Womans University, Seoul 120-750, Republic of Korea
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Aliskiren limits abdominal aortic aneurysm, ventricular hypertrophy and atherosclerosis in an apolipoprotein-E-deficient mouse model. Clin Sci (Lond) 2014; 127:123-34. [DOI: 10.1042/cs20130382] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In the present study, the efficacy of aliskiren in limiting the progression of abdominal aortic aneurysm, ventricular hypertrophy and atherosclerosis were examined in a mouse model. Aliskiren limited the progression of these pathologies, suggesting the potential of this medication for cardiovascular-protective protection.
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