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Shinjo T, Tanaka T, Okuda H, Kawaguchi AT, Oh-hashi K, Terada Y, Isonishi A, Morita-Takemura S, Tatsumi K, Kawaguchi M, Wanaka A. Propofol induces nuclear localization of Nrf2 under conditions of oxidative stress in cardiac H9c2 cells. PLoS One 2018; 13:e0196191. [PMID: 29689082 PMCID: PMC5915683 DOI: 10.1371/journal.pone.0196191] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 04/09/2018] [Indexed: 12/22/2022] Open
Abstract
Oxidative stress contributes to myocardial ischemia-reperfusion injury, which causes cardiomyocyte death and precipitate life-threatening heart failure. Propofol has been proposed to protect cells or tissues against oxidative stress. However, the mechanisms underlying its beneficial effects are not fully elucidated. In the present study, we employed an in vitro oxidative injury model, in which rat cardiac H9c2 cells were treated with H2O2, and investigated roles of propofol against oxidative stress. Propofol treatment reduced H2O2-induced apoptotic cell death. While H2O2 induced expression of the antioxidant enzyme HO-1, propofol further increased HO-1 mRNA and protein levels. Propofol also promoted nuclear localization of Nrf2 in the presence of H2O2. Knockdown of Nrf2 using siRNA suppressed propofol-inducible Nrf2 and expression of Nrf2-downstream antioxidant enzyme. Knockdown of Nrf2 suppressed the propofol-induced cytoprotection. In addition, Nrf2 overexpression induced nuclear localization of Nrf2 and HO-1 expression. These results suggest that propofol exerts antioxidative effects by inducing nuclear localization of Nrf2 and expression of its downstream enzyme in cardiac cells. Finally, we examined the effect of propofol on cardiomyocytes using myocardial ischemia-reperfusion injury models. The expression level of Nrf2 protein was increased at 15 min after reperfusion in the ischemia-reperfusion and propofol group compared with ischemia-reperfusion group in penumbra region. These results suggest that propofol protects cells or tissues from oxidative stress via Nrf2/HO-1 cascade.
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Affiliation(s)
- Takeaki Shinjo
- Department of Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
| | - Tatsuhide Tanaka
- Department of Anatomy and Neuroscience, Nara Medical University, Kashihara, Nara, Japan
- * E-mail:
| | - Hiroaki Okuda
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Akira T. Kawaguchi
- Department of Cell Transplantation and Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Kentaro Oh-hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
| | - Yuki Terada
- Department of Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
| | - Ayami Isonishi
- Department of Anatomy and Neuroscience, Nara Medical University, Kashihara, Nara, Japan
| | - Shoko Morita-Takemura
- Department of Anatomy and Neuroscience, Nara Medical University, Kashihara, Nara, Japan
| | - Kouko Tatsumi
- Department of Anatomy and Neuroscience, Nara Medical University, Kashihara, Nara, Japan
| | - Masahiko Kawaguchi
- Department of Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
| | - Akio Wanaka
- Department of Anatomy and Neuroscience, Nara Medical University, Kashihara, Nara, Japan
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Meng N, Tang H, Zhang H, Jiang C, Su L, Min X, Zhang W, Zhang H, Miao Z, Zhang W, Zhuang C. Fragment-growing guided design of Keap1-Nrf2 protein-protein interaction inhibitors for targeting myocarditis. Free Radic Biol Med 2018; 117:228-237. [PMID: 29428410 DOI: 10.1016/j.freeradbiomed.2018.02.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/01/2018] [Accepted: 02/05/2018] [Indexed: 12/30/2022]
Abstract
Small-molecule inhibitors that block the Keap1-Nrf2 protein-protein interactions are being intensely pursued as a new therapeutic strategy for oxidative stress-related diseases, such as cancer, diabetes, Alzheimer's disease, arteriosclerosis, inflammation and myocarditis. However, there are not enough studies on antioxidant treatments using small molecules in myocarditis. We herein provided a series of novel hydronaphthoquinones as the Keap1-Nrf2 interaction inhibitors targeting LPS-induced myocarditis both in vitro and in vivo. These compounds were designed through an in-silico fragment growing approach based on our previous reported compound, S47 (1). The new compounds were predicted to form additional hydrogen bonds with the S363 residue, leading to higher inhibitory activity. Among these new derivatives, compounds S01 and S05 emerged as inhibitors with significant biochemical potency, as determined by fluorescent anisotropy assay and confirmed by surface plasmon resonance (SPR) and differential scanning fluorimetry (DSF) assays. These inhibitors can dose-dependently protect the H9c2 cardiac cells against LPS-induced injury (100% at 2 μM and 4 μM) and effectively prolong survival or save the life of LPS-injured mice. Mechanistic studies showed that these inhibitors could release Nrf2 in H9c2 cells and LPS-inflammatory mouse models and translocate into the nucleus in a dose-response manner, which significantly increased the downstream genes (HO-1, NQO-1) and the pro-inflammatory cytokines (TNF-α, IL-1β, IL-6), while ROS production dramatically decreased. Their protective effects and the mechanism of action were further confirmed by siNrf2 transfected experiment. Collectively, the novel hydronaphthoquinones can be used as promising lead compounds for the study of Keap1-Nrf2 protein-protein interactions and further anti-myocarditis drug development.
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Affiliation(s)
- Ning Meng
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Hua Tang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Hao Zhang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
| | - Chengshi Jiang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Li Su
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xiao Min
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Wannian Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China.
| | - Zhenyuan Miao
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
| | - Wen Zhang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
| | - Chunlin Zhuang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
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Nair N, Gongora E. Oxidative Stress and Cardiovascular Aging: Interaction Between NRF-2 and ADMA. Curr Cardiol Rev 2017; 13:183-188. [PMID: 28215178 PMCID: PMC5633712 DOI: 10.2174/1573403x13666170216150955] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 01/10/2017] [Accepted: 02/10/2017] [Indexed: 01/26/2023] Open
Abstract
Background: The concept of antioxidant therapies assumes high importance as oxidative stress is associated with cardiovascular aging via endothelial dysfunction. This review focuses on exploring the interaction between nrf-2 and ADMA in influencing the nitric oxide pathway and cardiovascular function. Objective: A systematic review of literature from 1990 to 2016 was conducted using Pubmed and Google Scholar. The literature suggests a strong influence of nrf-2 activation on up regulation of DDAH I which degrades ADMA, the endogenous inhibitor of nitric oxide synthase. The resulting decrease of ADMA would in turn enhance nitric oxide (NO) production. This would support endothelial function by adequate NO production and homeostasis of endothelial function. Conclusion: As NO production has many positive pleiotropic effects in the cardiovascular system, such an interaction could be utilized for designing molecular therapeutics. The targets for therapy need not be limited to activation of nrf-2. Modulation of molecules downstream such as DDAH I can be used to regulate ADMA levels. Most current literature is supported by animal studies. The concept of antioxidant therapies needs to be tested in well-defined randomized control trials. The biochemical basis of nrf-2 activation needs to be substantiated in human studies.
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Affiliation(s)
- Nandini Nair
- Division of Cardiology, Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, United States
| | - Enrique Gongora
- Memorial Cardiac and Vascular Institute, Hollywood, FL 33031, United States
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Yang J, Shi Y, Chen H, Wang X, Chen Y, Yang B. Glycyrrhizic acid attenuates myocardial injury: Involvement of RIP140/NF-kB Pathway. Biomed Pharmacother 2017; 95:62-67. [DOI: 10.1016/j.biopha.2017.08.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/04/2017] [Accepted: 08/04/2017] [Indexed: 11/26/2022] Open
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Apigenin Alleviates Endotoxin-Induced Myocardial Toxicity by Modulating Inflammation, Oxidative Stress, and Autophagy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2302896. [PMID: 28828145 PMCID: PMC5554558 DOI: 10.1155/2017/2302896] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 06/08/2017] [Accepted: 06/15/2017] [Indexed: 12/19/2022]
Abstract
Apigenin, a component in daily diets, demonstrates antioxidant and anti-inflammatory properties. Here, we intended to explore the mechanism of apigenin-mediated endotoxin-induced myocardial injury and its role in the interplay among inflammation, oxidative stress, and autophagy. In our lipopolysaccharide- (LPS-) induced myocardial injury model, apigenin ameliorated cardiac injury (lactate dehydrogenase (LDH) and creatine kinase (CK)), cell death (TUNEL staining, DNA fragmentation, and PARP activity), and tissue damage (cardiac troponin I (cTnI) and cardiac myosin light chain-1 (cMLC1)) and improved cardiac function (ejection fraction (EF) and end diastolic left ventricular inner dimension (LVID)). Apigenin also alleviated endotoxin-induced myocardial injury by modulating oxidative stress (nitrotyrosine and protein carbonyl) and inflammatory cytokines (TNF-α, IL-1β, MIP-1α, and MIP-2) along with their master regulator NFκB. Apigenin modulated redox homeostasis, and its anti-inflammatory role might be associated with its ability to control autophagy. Autophagy (determined by LAMP1, ATG5, and p62), its transcriptional regulator transcription factor EB (TFEB), and downstream target genes including vacuolar protein sorting-associated protein 11 (Vps11) and microtubule-associated proteins 1A/1B light chain 3B (Map1lc3) were modulated by apigenin. Thus, our study demonstrated that apigenin may lead to potential development of new target in sepsis treatment or other myocardial oxidative and/or inflammation-induced injuries.
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Asokan Shibu M, Kuo WW, Kuo CH, Day CH, Shen CY, Chung LC, Lai CH, Pan LF, Vijaya Padma V, Huang CY. Potential phytoestrogen alternatives exert cardio-protective mechanisms via estrogen receptors. Biomedicine (Taipei) 2017; 7:11. [PMID: 28612709 PMCID: PMC5479424 DOI: 10.1051/bmdcn/2017070204] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/10/2017] [Indexed: 12/19/2022] Open
Abstract
The 17 beta-estradiol (E2) is a sex hormone that is most abundant and most active estrogen in premenopausal women. The importance of E2 in providing cardioprotection and reducing the occurrence of heart disease in women of reproductive age has been well recognized. There are three subtype of estrogen receptors (ERs), including ERα, ERβ and GPR30 have been identified and accumulating evidence reveal their roles on E2-mediated genomic and nongenomic pathway in cardiomyocytes against various cardiac insults. In this review, we focus on the estrogen and ERs mediated signaling pathways in cardiomyocytes that determines cardio-protection against various stresses and further discuss the clinical implication of ERs and phytoestrogens. Further we provide some insights on phytoeostrogens which may play as alternatives in estrogen replacement therapies.
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Affiliation(s)
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung 404, Taiwan
| | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, Department of Sports Sciences, University of Taipei, Taipei 100, Taiwan
| | | | - Chia-Yao Shen
- Department of Nursing, Meiho University, Pingtung 912,Taiwan
| | - Li-Chin Chung
- Department of Hospital and Health Care Administration, Chia Nan University of Pharmacy & Science, Tainan 717, Taiwan
| | - Chao-Hung Lai
- Division of Cardiology, Department of Internal Medicine, Armed-Force, Taichung General Hospital, Taichung 411, Taiwan
| | - Lung-Fa Pan
- Division of Cardiology, Department of Internal Medicine, Armed-Force, Taichung General Hospital, Taichung 411, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiyar University, Coimbatore, Tamil Nadu 641046, India
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 404, Taiwan - School of Chinese Medicine, China Medical University, Taichung 404, Taiwan - Department of Health and Nutrition Biotechnology, Asia University, Taichung 413, Taiwan
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Kozlov AV, Lancaster JR, Meszaros AT, Weidinger A. Mitochondria-meditated pathways of organ failure upon inflammation. Redox Biol 2017; 13:170-181. [PMID: 28578275 PMCID: PMC5458092 DOI: 10.1016/j.redox.2017.05.017] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/24/2017] [Accepted: 05/24/2017] [Indexed: 02/06/2023] Open
Abstract
Liver failure induced by systemic inflammatory response (SIRS) is often associated with mitochondrial dysfunction but the mechanism linking SIRS and mitochondria-mediated liver failure is still a matter of discussion. Current hypotheses suggest that causative events could be a drop in ATP synthesis, opening of mitochondrial permeability transition pore, specific changes in mitochondrial morphology, impaired Ca2+ uptake, generation of mitochondrial reactive oxygen species (mtROS), turnover of mitochondria and imbalance in electron supply to the respiratory chain. The aim of this review is to critically analyze existing hypotheses, in order to highlight the most promising research lines helping to prevent liver failure induced by SIRS. Evaluation of the literature shows that there is no consistent support that impaired Ca++ metabolism, electron transport chain function and ultrastructure of mitochondria substantially contribute to liver failure. Moreover, our analysis suggests that the drop in ATP levels has protective rather than a deleterious character. Recent data suggest that the most critical mitochondrial event occurring upon SIRS is the release of mtROS in cytoplasm, which can activate two specific intracellular signaling cascades. The first is the mtROS-mediated activation of NADPH-oxidase in liver macrophages and endothelial cells; the second is the acceleration of the expression of inflammatory genes in hepatocytes. The signaling action of mtROS is strictly controlled in mitochondria at three points, (i) at the site of ROS generation at complex I, (ii) the site of mtROS release in cytoplasm via permeability transition pore, and (iii) interaction with specific kinases in cytoplasm. The systems controlling mtROS-signaling include pro- and anti-inflammatory mediators, nitric oxide, Ca2+ and NADPH-oxidase. Analysis of the literature suggests that further research should be focused on the impact of mtROS on organ failure induced by inflammation and simultaneously providing a new theoretical basis for a targeted therapy of overwhelmed inflammatory response. Relationship between mitochondrial dysfunction and high lethality upon sepsis. Criteria to define critical for lethality mitochondrial dysfunction. ATP, calcium, mitochondrial ultrastructure and apoptosis, upon inflammation. Regulation of inflammatory processes by mitochondrial ROS.
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Affiliation(s)
- Andrey V Kozlov
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Donaueschingen Str. 13, 1200 Vienna, Austria.
| | - Jack R Lancaster
- University of Pittsburgh, Departments of Pharmacology & Chemical Biology, Surgery, and Medicine, 1341A Thomas E. Starzl Biomedical Science Tower, PA 15261, United States
| | - Andras T Meszaros
- University of Szeged, Institute of Surgical Research, 6720 Szeged, Hungary
| | - Adelheid Weidinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Donaueschingen Str. 13, 1200 Vienna, Austria
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Azimzadeh K, Nasrollahi Nargesabad R, Vousooghi N. Evaluation of plasma sphingosine 1-phosphate, hepcidin and cardiovascular damage biomarkers (cardiac troponin I and homocysteine) in rats infected with brucellosis and vaccinated (Rev-1, RB-51). Microb Pathog 2017; 109:67-70. [PMID: 28533142 DOI: 10.1016/j.micpath.2017.05.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 05/13/2017] [Accepted: 05/19/2017] [Indexed: 11/26/2022]
Abstract
Brucellosis is known as one of important zoonosis. Studying the histological and biochemical effects of the disease could help to increase our knowledge about it. The aim of the present study was to evaluate changes of plasma parameters after intraperitoneal injection of two species of Brucella (Brucella melitensis and Brucella abortus) and two vaccines (Rev-1, RB-51) in the rat. Forty male rats were divided into five groups (n = 8 in each group). Two groups received suspensions of Brucella abortus and Brucella melitensis and two other groups were injected intraperitoneally with two mentioned vaccines and the last group received only distilled water. The results showed a significant increase in sphingosine 1-phosphate, Malondialdehyde, hepcidin, homocysteine, cardiac troponin I and copper levels and a considerable decrease in the levels of iron and zinc (P ≤ 0.01) in infected groups compared to the control animals. In vaccinated groups, hepcidin was increased but other parameters were not changed in comparison to the control group. It can be concluded that increase of homocysteine and cardiac troponin I in brucellosis could be a warning for cardiac adverse effects. Besides, increase of sphingosine 1-phosphate probably indicates its stimulant and modulatory effects in anti- Brucellosis biochemical pathways of the host.
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Affiliation(s)
- Kaveh Azimzadeh
- Young Researcher and Elite Club, Urmia Branch, Islamic Azad University, Urmia, Iran.
| | | | - Nasim Vousooghi
- Department of Neuroscience, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran; Genetics Laboratory, Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran; Research Center for Cognitive and Behavioral Sciences, Tehran University of Medical Sciences, Tehran, Iran
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Cho S, Namkoong K, Shin M, Park J, Yang E, Ihm J, Thu VT, Kim HK, Han J. Cardiovascular Protective Effects and Clinical Applications of Resveratrol. J Med Food 2017; 20:323-334. [PMID: 28346848 DOI: 10.1089/jmf.2016.3856] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Resveratrol is a naturally occurring phenol that is generated by plant species following injury or attack by bacterial and fungal pathogens. This compound was first described as the French Paradox in 1992. Later in 2003, resveratrol was reported to activate sirtuins in yeast cells. Recent experimental studies have found that resveratrol offers a variety of benefits that include both anticarcinogenic and anti-inflammatory effects in addition to the ability to reverse obesity, attenuate hyperglycemia and hyperinsulinemia, protect heart and endothelial function, and increase the life span. Multiple molecular targets are associated with the cardioprotective capabilities of resveratrol, and therefore, resveratrol has potential for a wide range of new therapeutic strategies for atherosclerosis, ischemia/reperfusion, metabolic syndrome, cardiac failure, and inflammatory alterations during aging. Expectations for application in human patients, however, suffer from a lack of sufficient clinical evidence in support of these beneficial effects. This article reviews recently reported basic research results that describe the beneficial effects of resveratrol in an attempt to condense the evidence observed in clinical trials and provide support for the future development of novel clinical therapeutics in patients with cardiovascular diseases.
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Affiliation(s)
- Sanghyun Cho
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea
| | - Kyung Namkoong
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea
| | - Minji Shin
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea
| | - Jueun Park
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea
| | - Eunyeong Yang
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea
| | - Jinsoo Ihm
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea
| | - Vu Thi Thu
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea.,2 Key Laboratory of Enzyme and Protein Technology, Faculty of Biology, VNU University of Science , Hanoi, Vietnam
| | - Hyoung Kyu Kim
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea.,3 Department of Integrated Biomedical Science, College of Medicine, Inje University , Busan, Korea
| | - Jin Han
- 1 National Research Laboratory for Mitochondrial Signaling, Cardiovascular and Metabolic Disease Center, Department of Health Sciences and Technology, BK21 Project Team, Department of Physiology, College of Medicine, Inje University , Busan, Korea
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Resveratrol-Mediated Expression of KLF15 in the Ischemic Myocardium is Associated with an Improved Cardiac Phenotype. Cardiovasc Drugs Ther 2017; 31:29-38. [PMID: 28064408 DOI: 10.1007/s10557-016-6707-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE Myocardial infarction results in physiological derangements that lead to structural and functional alterations to the myocardium. In addition, oxidative stress potentiates cardiac remodeling and drives disease progression. Unfortunately, treatment with antioxidants in clinical trials have failed to show any therapeutic benefits despite the positive results reported in animal studies, which warrants further investigation into their mechanism(s) of action. Accordingly, the aim of this study was to elucidate a previously unknown mechanism of action for the antioxidant, resveratrol, in the treatment of the ischemic heart. METHODS Male Sprague-Dawley rats underwent four weeks of chronic myocardial ischemia with or without daily resveratrol treatment (10 mg/kg/day). The expression and signaling of Krüppel-like factor 15 (KLF15) were determined by immunoblot and qPCR analyses, respectively. RESULTS Chronic myocardial ischemia reduced the protein expression of KLF15. In parallel, mRNA transcripts of KLF15 gene targets actively involved in cardiac remodeling were robustly increased in untreated hearts. Importantly, daily treatment with resveratrol stimulated KLF15 expression, which was associated with attenuated gene expression and an improved cardiac phenotype. Additionally, we describe a novel role for KLF15 in the regulation of redox homeostasis. CONCLUSION Based on our current findings, it appears that resveratrol treatment induces KLF15 expression, which may, in part, explain its therapeutic efficacy to improve the cardiac phenotype following ischemic injury.
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Bigagli E, Cinci L, Paccosi S, Parenti A, D'Ambrosio M, Luceri C. Nutritionally relevant concentrations of resveratrol and hydroxytyrosol mitigate oxidative burst of human granulocytes and monocytes and the production of pro-inflammatory mediators in LPS-stimulated RAW 264.7 macrophages. Int Immunopharmacol 2016; 43:147-155. [PMID: 27998828 DOI: 10.1016/j.intimp.2016.12.012] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/21/2016] [Accepted: 12/08/2016] [Indexed: 11/19/2022]
Abstract
The health benefits of bio-active phenolic compounds have been largely investigated in vitro at concentrations which exceed those reachable in vivo. We investigated and compared the anti-inflammatory effects of resveratrol, hydroxytyrosol and oleuropein at physiologically relevant concentrations by using in vitro models of inflammation. Human granulocytes and monocytes were stimulated with phorbol myristate acetate (PMA) and the ability of resveratrol, hydroxytyrosol and oleuropein to inhibit the oxidative burst and CD11b expression was measured. Nitric oxide (NO), prostaglandin E2 (PGE2) levels, COX-2, iNOS, TNFα, IL-1β and miR-146a expression and activation of the transcription factor Nrf2 were evaluated in macrophages RAW 264.7 stimulated with LPS (1μg/ml) for 18h, exposed to resveratrol, hydroxytyrosol and oleuropein (5 and 10μM). Synergistic effects were explored as well, together with the levels of PGE2, COX-2 and IL-1β expression in macrophages after 6h of LPS stimulation. PGE2 and COX-2 expression were also assessed on human monocytes. All the tested compounds inhibited granulocytes oxidative burst in a concentration dependent manner and CD11b expression was also significantly counteracted by resveratrol and hydroxytyrosol. The measurement of oxidative burst in human monocytes produced similar effects being resveratrol more active. Hydroxytyrosol and resveratrol inhibited the production of NO and PGE2 but did not reduce iNOS, TNFα or IL-1β gene expression in LPS-stimulated RAW 264.7 for 18h. Resveratrol slightly decreased COX-2 expression after 18h but not after 6h, but reduced PGE2 levels after 6h. Resveratrol and hydroxytyrosol 10μM induced NRf2 nuclear translocation and reduced miR-146a expression in LPS treated RAW 264.7. Overall, we reported an anti-inflammatory effect of resveratrol and hydroxytyrosol at low, nutritionally relevant concentrations, involving the inhibition of granulocytes and monocytes activation, the modulation of miR-146a expression and the activation of Nrf2. A regular dietary intake of resveratrol and hydroxytyrosol may be a useful complementary strategy to control inflammatory diseases.
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Affiliation(s)
- Elisabetta Bigagli
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy.
| | - Lorenzo Cinci
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Sara Paccosi
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Astrid Parenti
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Mario D'Ambrosio
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Cristina Luceri
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
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Cardiac-specific overexpression of thioredoxin 1 attenuates mitochondrial and myocardial dysfunction in septic mice. Int J Biochem Cell Biol 2016; 81:323-334. [DOI: 10.1016/j.biocel.2016.08.045] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/26/2016] [Accepted: 08/30/2016] [Indexed: 01/26/2023]
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Jiang S, Yang Y, Li T, Ma Z, Hu W, Deng C, Fan C, Lv J, Sun Y, Yi W. An overview of the mechanisms and novel roles of Nrf2 in cardiovascular diseases. Expert Opin Ther Targets 2016; 20:1413-1424. [DOI: 10.1080/14728222.2016.1250887] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Vilar-Pereira G, Carneiro VC, Mata-Santos H, Vicentino ARR, Ramos IP, Giarola NLL, Feijó DF, Meyer-Fernandes JR, Paula-Neto HA, Medei E, Bozza MT, Lannes-Vieira J, Paiva CN. Resveratrol Reverses Functional Chagas Heart Disease in Mice. PLoS Pathog 2016; 12:e1005947. [PMID: 27788262 PMCID: PMC5082855 DOI: 10.1371/journal.ppat.1005947] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/22/2016] [Indexed: 12/13/2022] Open
Abstract
Chronic chagasic cardiomyopathy (CCC) develops years after acute infection by Trypanosoma cruzi and does not improve after trypanocidal therapy, despite reduction of parasite burden. During disease, the heart undergoes oxidative stress, a potential causative factor for arrhythmias and contractile dysfunction. Here we tested whether antioxidants/ cardioprotective drugs could improve cardiac function in established Chagas heart disease. We chose a model that resembles B1-B2 stage of human CCC, treated mice with resveratrol and performed electrocardiography and echocardiography studies. Resveratrol reduced the prolonged PR and QTc intervals, increased heart rates and reversed sinus arrhythmia, atrial and atrioventricular conduction disorders; restored a normal left ventricular ejection fraction, improved stroke volume and cardiac output. Resveratrol activated the AMPK-pathway and reduced both ROS production and heart parasite burden, without interfering with vascularization or myocarditis intensity. Resveratrol was even capable of improving heart function of infected mice when treatment was started late after infection, while trypanocidal drug benznidazole failed. We attempted to mimic resveratrol's actions using metformin (AMPK-activator) or tempol (SOD-mimetic). Metformin and tempol mimicked the beneficial effects of resveratrol on heart function and decreased lipid peroxidation, but did not alter parasite burden. These results indicate that AMPK activation and ROS neutralization are key strategies to induce tolerance to Chagas heart disease. Despite all tissue damage observed in established Chagas heart disease, we found that a physiological dysfunction can still be reversed by treatment with resveratrol, metformin and tempol, resulting in improved heart function and representing a starting point to develop innovative therapies in CCC.
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Affiliation(s)
- Glaucia Vilar-Pereira
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Biologia das Interações, Rio de Janeiro, RJ, Brazil
| | - Vitor C. Carneiro
- Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Tecnologia, Rio de Janeiro, RJ, Brazil
| | - Hilton Mata-Santos
- UFRJ, Instituto de Microbiologia Paulo de Góes, Departamento de Imunologial, Rio de Janeiro, RJ, Brazil
- UFRJ, Faculdade de Farmácia, Departamento de Análises Clínicas e Toxicológicas, Rio de Janeiro, RJ, Brazil
| | - Amanda R. R. Vicentino
- Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Tecnologia, Rio de Janeiro, RJ, Brazil
| | - Isalira P. Ramos
- UFRJ, Hospital Universitário Clementino Fraga Filho, Departamento de Radiologia, Rio de Janeiro, RJ, Brazil
- UFRJ, Instituto de Biofísica Carlos Chagas Filho, Rio de Janeiro, RJ, Brazil
- UFRJ, Centro Nacional de Biologia Estrutural e Bioimagem, Rio de Janeiro, RJ, Brazil
| | - Naira L. L. Giarola
- UFRJ, Instituto de Bioquímica Médica Leopoldo de Meis, Rio de Janeiro, RJ, Brazil
| | - Daniel F. Feijó
- UFRJ, Instituto de Microbiologia Paulo de Góes, Departamento de Imunologial, Rio de Janeiro, RJ, Brazil
| | - José R. Meyer-Fernandes
- UFRJ, Instituto de Bioquímica Médica Leopoldo de Meis, Rio de Janeiro, RJ, Brazil
- Instituto Nacional de Ciência e Tecnologia da Biologia Estrutural e Bioimagem, Rio de Janeiro, RJ, Brazil
| | - Heitor A. Paula-Neto
- UFRJ, Faculdade de Farmácia, Departamento de Fármacos, Rio de Janeiro, RJ, Brazil
| | - Emiliano Medei
- UFRJ, Instituto de Biofísica Carlos Chagas Filho, Rio de Janeiro, RJ, Brazil
- UFRJ, Centro Nacional de Biologia Estrutural e Bioimagem, Rio de Janeiro, RJ, Brazil
| | - Marcelo T. Bozza
- UFRJ, Instituto de Microbiologia Paulo de Góes, Departamento de Imunologial, Rio de Janeiro, RJ, Brazil
| | - Joseli Lannes-Vieira
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Biologia das Interações, Rio de Janeiro, RJ, Brazil
| | - Claudia N. Paiva
- UFRJ, Instituto de Microbiologia Paulo de Góes, Departamento de Imunologial, Rio de Janeiro, RJ, Brazil
- * E-mail: ,
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An R, Zhao L, Xu J, Xi C, Li H, Shen G, Zhang W, Zhang S, Sun L. Resveratrol alleviates sepsis-induced myocardial injury in rats by suppressing neutrophil accumulation, the induction of TNF-α and myocardial apoptosis via activation of Sirt1. Mol Med Rep 2016; 14:5297-5303. [DOI: 10.3892/mmr.2016.5861] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 08/24/2016] [Indexed: 11/06/2022] Open
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Wang L, Chen Q, Qi H, Wang C, Wang C, Zhang J, Dong L. Doxorubicin-Induced Systemic Inflammation Is Driven by Upregulation of Toll-Like Receptor TLR4 and Endotoxin Leakage. Cancer Res 2016; 76:6631-6642. [PMID: 27680684 DOI: 10.1158/0008-5472.can-15-3034] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 08/10/2016] [Accepted: 09/06/2016] [Indexed: 11/16/2022]
Abstract
Doxorubicin is one of the most effective chemotherapeutic agents used for cancer treatment, but it causes systemic inflammation and serious multiorgan side effects in many patients. In this study, we report that upregulation of the proinflammatory Toll-like receptor TLR4 in macrophages by doxorubicin is an important step in generating its toxic side effects. In patient serum, doxorubicin treatment resulted in leakage of endotoxin and inflammatory cytokines into circulation. In mice, doxorubicin damaged the intestinal epithelium, which also resulted in leakage of endotoxin from the gut flora into circulation. Concurrently, doxorubicin increased TLR4 expression in macrophages both in vitro and in vivo, which further enhanced the sensitivity of these cells to endotoxin. Either depletion of gut microorganisms or blockage of TLR4 signaling effectively decreased doxorubicin-induced toxicity. Taken together, our findings suggest that doxorubicin-triggered leakage of endotoxin into the circulation, in tandem with enhanced TLR4 signaling, is a candidate mechanism underlying doxorubicin-induced systemic inflammation. Our study provides new insights for devising relevant strategies to minimize the adverse effects of chemotherapeutic agents such as doxorubicin, which may extend its clinical uses to eradicate cancer cells. Cancer Res; 76(22); 6631-42. ©2016 AACR.
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Affiliation(s)
- Lintao Wang
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of life sciences, Nanjing University, Nanjing, China
| | - Qian Chen
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of life sciences, Nanjing University, Nanjing, China
| | - Haixia Qi
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of life sciences, Nanjing University, Nanjing, China
| | - Chunming Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR
| | - Cheng Wang
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of life sciences, Nanjing University, Nanjing, China.,Department of Clinical Laboratory, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Junfeng Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of life sciences, Nanjing University, Nanjing, China.
| | - Lei Dong
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of life sciences, Nanjing University, Nanjing, China.
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Bai T, Hu X, Zheng Y, Wang S, Kong J, Cai L. Resveratrol protects against lipopolysaccharide-induced cardiac dysfunction by enhancing SERCA2a activity through promoting the phospholamban oligomerization. Am J Physiol Heart Circ Physiol 2016; 311:H1051-H1062. [PMID: 27591219 DOI: 10.1152/ajpheart.00296.2016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 08/06/2016] [Indexed: 02/08/2023]
Abstract
The bacterial endotoxin lipopolysaccharide (LPS) is a main culprit responsible for cardiac dysfunction in sepsis. This study examined whether resveratrol could protect against LPS-induced cardiac dysfunction by improving the sarcoplasmic endoplasmic reticulum Ca2+-ATPase (SERCA2a) activity. Echocardiographic parameters, cardiomyocyte contractile and Ca2+ transient properties, markers for cardiac inflammation, cell death, and oxidative stress, SERCA2a activity, and the ratios of phospholamban (PLB) monomer to oligomer were measured. Cardiac function was decreased >50% after LPS challenge (6 mg/kg for 6 h), which was improved by resveratrol. There was neither difference in plasma tumor necrosis factor-α and troponin I levels nor in infiltration of CD45+ cells in cardiac tissue between resveratrol-treated and untreated groups. In cardiomyocytes, LPS significantly decreased contractile amplitude, elongated relengthening time, diminished Ca2+ transient, reduced SERCA2a activity, and increased superoxide generation. These pathological alterations were attenuated by resveratrol treatment. Immunoblot analysis showed that LPS-treated mice had increased levels of malondialdehyde (MDA), 4-hydroxynonenal (4-HNE), and the monomer form of PLB, along with decreases in the levels of SERCA2a, the oligomer form of PLB and nuclear factor erythroid 2-related factor (Nrf-2). Resveratrol treatment upregulated SERCA2a, the oligomer form of PLB, and Nrf-2 expression and function, and downregulated MDA, 4-HNE, and the monomer form of PLB. Our data suggest that the activity of SERCA2a in endotoxemia is inhibited, possibly due to increases in the monomer form of PLB. Resveratrol protects the heart from LPS-induced injuries at least in part through promoting the oligomerization of PLB that leads to enhanced SERCA2a activity.
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Affiliation(s)
- Tao Bai
- Cardiovascular Center, First Hospital of Jilin University, Changchun, China; Departments of Pediatrics and Radiation Oncology, Kosair Children's Hospital Research Institute, University of Louisville, Louisville, Kentucky
| | - Xinyue Hu
- Cardiovascular Center, First Hospital of Jilin University, Changchun, China; Departments of Pediatrics and Radiation Oncology, Kosair Children's Hospital Research Institute, University of Louisville, Louisville, Kentucky
| | - Yang Zheng
- Cardiovascular Center, First Hospital of Jilin University, Changchun, China
| | - Shudong Wang
- Cardiovascular Center, First Hospital of Jilin University, Changchun, China; Departments of Pediatrics and Radiation Oncology, Kosair Children's Hospital Research Institute, University of Louisville, Louisville, Kentucky
| | - Jian Kong
- Department of Geriatric Medicine, First Hospital of Jilin University, Changchun, China; and
| | - Lu Cai
- Departments of Pediatrics and Radiation Oncology, Kosair Children's Hospital Research Institute, University of Louisville, Louisville, Kentucky
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Wang G, Yao J, Li Z, Zu G, Feng D, Shan W, Li Y, Hu Y, Zhao Y, Tian X. miR-34a-5p Inhibition Alleviates Intestinal Ischemia/Reperfusion-Induced Reactive Oxygen Species Accumulation and Apoptosis via Activation of SIRT1 Signaling. Antioxid Redox Signal 2016; 24:961-73. [PMID: 26935288 DOI: 10.1089/ars.2015.6492] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIMS Reactive oxygen species (ROS) generation and massive epithelial apoptosis are critical in the pathogenesis of intestinal ischemia/reperfusion (I/R) injury. We previously found that the Sirtuin 1 (SIRT1)-mediated antioxidant pathway was impaired in the intestine after I/R. Here, we investigate the potential role of SIRT1-targeting microRNAs (miRNAs) in regulating ROS accumulation and apoptosis in intestinal I/R, and the important role SIRT1 involved in. RESULTS C57BL/6 mice were subjected to intestinal I/R induced by occlusion of the superior mesenteric artery followed by reperfusion. Caco-2 cells were incubated under hypoxia/reoxygenation condition to mimic I/R in vivo. We find that SIRT1 is gradually repressed during the early reperfusion, and that this repression results in intestinal ROS accumulation and apoptosis. Using bioinformatics analysis and real-time PCR, we demonstrate that miR-34a-5p and miR-495-3p are significantly increased among the 41 putative miRNAs that can target SIRT1. Inhibition of miR-34a-5p, but not miR-495-3p, attenuates intestinal I/R injury, as demonstrated by repressing p66shc upregulation, manganese superoxide dismutase repression, and the caspase-3 activation in vitro and in vivo; it further alleviates systemic injury, as demonstrated by reducing inflammatory cytokine release, attenuating lung and liver lesions, and improving survival. Interestingly, SIRT1 plays an indispensable role in the protection afforded by miR-34a-5p inhibition. INNOVATION This study provides the first evidence of miRNAs in regulating oxidative stress and apoptosis in intestinal I/R. CONCLUSION miR-34a-5p knockdown attenuates intestinal I/R injury through promoting SIRT1-mediated suppression of epithelial ROS accumulation and apoptosis. This may represent a novel prophylactic approach to intestinal I/R injury. Antioxid. Redox Signal. 24, 961-973.
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Affiliation(s)
- Guangzhi Wang
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Jihong Yao
- 2 Department of Pharmacology, Dalian Medical University , Dalian, China
| | - Zhenlu Li
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Guo Zu
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Dongcheng Feng
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Wen Shan
- 2 Department of Pharmacology, Dalian Medical University , Dalian, China
| | - Yang Li
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Yan Hu
- 2 Department of Pharmacology, Dalian Medical University , Dalian, China
| | - Yongfu Zhao
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Xiaofeng Tian
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
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Bonnefont-Rousselot D. Resveratrol and Cardiovascular Diseases. Nutrients 2016; 8:nu8050250. [PMID: 27144581 PMCID: PMC4882663 DOI: 10.3390/nu8050250] [Citation(s) in RCA: 274] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 04/10/2016] [Accepted: 04/20/2016] [Indexed: 02/06/2023] Open
Abstract
The increased incidence of cardiovascular diseases (CVDs) has stimulated research for substances that could improve cardiovascular health. Among them, resveratrol (RES), a polyphenolic compound notably present in grapes and red wine, has been involved in the “French paradox”. RES is known for its antioxidant and anti-inflammatory properties and for its ability to upregulate endothelial NO synthase (eNOS). RES was able to scavenge •OH/O2•− and peroxyl radicals, which can limit the lipid peroxidation processes. Moreover, in bovine aortic endothelial cells (BAEC) under glucose-induced oxidative stress, RES restored the activity of dimethylargininedimethylaminohydrolase (DDAH), an enzyme that degrades an endogenous inhibitor of eNOS named asymmetric dimethylarginine (ADMA). Thus, RES could improve •NO availability and decrease the endothelial dysfunction observed in diabetes. Preclinical studies have made it possible to identify molecular targets (SIRT-1, AMPK, Nrf2, NFκB…); however, there are limited human clinical trials, and difficulties in the interpretation of results arise from the use of high-dose RES supplements in research studies, whereas low RES concentrations are present in red wine. The discussions on potential beneficial effects of RES in CVDs (atherosclerosis, hypertension, stroke, myocardial infarction, heart failure) should compare the results of preclinical studies with those of clinical trials.
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Affiliation(s)
- Dominique Bonnefont-Rousselot
- Department of Biochemistry, Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris 75006, France.
- Department of Metabolic Biochemistry, Pitié-Salpêtrière-Charles Foix Hospital (AP-HP), Paris 75013, France.
- Inserm UMR_S 1166 ICAN, UPMC, La Pitié Hospital, Paris 75013, France.
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Role of TFEB Mediated Autophagy, Oxidative Stress, Inflammation, and Cell Death in Endotoxin Induced Myocardial Toxicity of Young and Aged Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:5380319. [PMID: 27200146 PMCID: PMC4856916 DOI: 10.1155/2016/5380319] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/25/2016] [Accepted: 04/03/2016] [Indexed: 11/25/2022]
Abstract
Elderly patients are susceptible to sepsis. LPS induced myocardial injury is a widely used animal model to assess sepsis induced cardiac dysfunction. The age dependent mechanisms behind sepsis susceptibility were not studied. We analyzed age associated changes to cardiac function, cell death, inflammation, oxidative stress, and autophagy in LPS induced myocardial injury. Both young and aged C57BL/6 mice were used for LPS administration. The results demonstrated that LPS induced more cardiac injury (creatine kinase, lactate dehydrogenase, troponin I, and cardiac myosin-light chains 1), cardiac dysfunction (left ventricular inner dimension, LVID, and ejection fraction (EF)), cell death, inflammation, and oxidative stress in aged mice compared to young mice. However, a significant age dependent decline in autophagy was observed. Translocation of Transcription Factor EB (TFEB) to nucleus and formation of LC3-II were significantly reduced in LPS administered aged mice compared to young ones. In addition to that, downstream effector of TFEB, LAMP-1, was induced in response to LPS challenge in young mice. The present study newly demonstrates that TFEB mediated autophagy is crucial for protection against LPS induced myocardial injury particularly in aging senescent heart. Targeting this autophagy-oxidative stress-inflammation-cell death axis may provide a novel therapeutic strategy for cardioprotection in the elderly.
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Nabavi SF, Barber AJ, Spagnuolo C, Russo GL, Daglia M, Nabavi SM, Sobarzo-Sánchez E. Nrf2 as molecular target for polyphenols: A novel therapeutic strategy in diabetic retinopathy. Crit Rev Clin Lab Sci 2016; 53:293-312. [PMID: 26926494 DOI: 10.3109/10408363.2015.1129530] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diabetic retinopathy is a microvascular complication of diabetes that is considered one of the leading causes of blindness among adults. More than 4.4 million people suffer from this disorder throughout the world. Growing evidence suggests that oxidative stress plays a crucial role in the pathophysiology of diabetic retinopathy. Nuclear factor erythroid 2-related factor 2 (Nrf2), a redox sensitive transcription factor, plays an essential protective role in regulating the physiological response to oxidative and electrophilic stress via regulation of multiple genes encoding antioxidant proteins and phase II detoxifying enzymes. Many studies suggest that dozens of natural compounds, including polyphenols, can supress oxidative stress and inflammation through targeting Nrf2 and consequently activating the antioxidant response element-related cytoprotective genes. Therefore, Nrf2 may provide a new therapeutic target for treatment of diabetic retinopathy. In the present article, we will focus on the role of Nrf2 in diabetic retinopathy and the ability of polyphenols to target Nrf2 as a therapeutic strategy.
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Affiliation(s)
- Seyed Fazel Nabavi
- a Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Alistair J Barber
- b Department of Ophthalmology , Penn State Hershey Eye Center, Penn State Hershey College of Medicine , Hershey , PA , USA
| | - Carmela Spagnuolo
- c Institute of Food Sciences, National Research Council , Avellino , Italy
| | - Gian Luigi Russo
- c Institute of Food Sciences, National Research Council , Avellino , Italy
| | - Maria Daglia
- d Department of Drug Sciences , Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia , Pavia , Italy , and
| | - Seyed Mohammad Nabavi
- a Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Eduardo Sobarzo-Sánchez
- e Laboratory of Pharmaceutical Chemistry , Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago De Compostela , Santiago De Compostela , Spain
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Huang JD, Chen SL, Lyu JJ, Liu C, Zeng QY. [Correlation between uncoupling protein 2 expression and myocardial mitochondrial injury in rats with sepsis induced by lipopolysaccharide]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2016; 18:159-164. [PMID: 26903064 PMCID: PMC7403040 DOI: 10.7499/j.issn.1008-8830.2016.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 12/01/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the correlation between uncoupling protein 2 (UCP2) expression and myocardial mitochondria injury in rats with sepsis induced by lipopolysaccharide (LPS). METHODS The rat model of sepsis was established through an intraperitoneal injection of LPS. Forty male Sprague-Dawley rats were randomly and equally divided into control group (an intraperitoneal injection of normal saline), sepsis 6 h group (LPS-6 h group), sepsis 12 h group (LPS-12 h group), sepsis 24 h group (LPS-24 h group), and sepsis 48 h group (LPS-48 h group). The serum and heart tissues were harvested at corresponding time points and myocardial mitochondria was extracted. The microplate reader was applied to measure creatine kinase (CK), creatine kinase-MB (CK-MB), and reactive oxygen species (ROS). Flow cytometry was applied to measure the degree of mitochondrial swelling and mitochondrial membrane potential (MMP). Western blot was used to measure the expression level of UCP2. Electron microscopy was applied to observe the morphological changes in heart tissues and myocardial mitochondria. RESULTS Compared with the control group, the LPS groups had significantly increased serum levels of CK, CK-MB, and myocardial ROS, as well as a significantly increased degree of mitochondrial swelling (P<0.05), and these values reached their peaks at 24 hours after LPS injection. The LPS groups had a significant decrease in MMP (P<0.05), which reached the lowest level at 24 hours after LPS injection. Western blot showed that the LPS groups had a significant increase in the expression level of myocardial UCP2 compared with the control group (P<0.05), which reached its peak at 24 hours after LPS injection. The results of electron microscopy showed mitochondrial swelling, partial rupture of the mitochondrial membrane, and cavity formation in rats in the LPS groups. The most severe lesions occurred in the LPS-24 h group. In rats with LPS, the ROS level in the myocardial mitochondria and the degree of mitochondrial swelling were positively correlated with the expression level of UCP2 (r=0.796 and 0.893, respectively; P<0.05), while MMP was negatively correlated with the expression level of UCP2 (r=-0.903, P<0.05). CONCLUSIONS In the rat model of sepsis, the myocardium and myocardial mitochondria have obvious injuries, and the expression level of UCP2 is closely correlated with mitochondrial injury. Therefore, UCP2 might play an important role in myocardial mitochondrial injury in sepsis.
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Affiliation(s)
- Jin-Da Huang
- Department of Pediatrics, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
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Huang JD, Chen SL, Lyu JJ, Liu C, Zeng QY. [Correlation between uncoupling protein 2 expression and myocardial mitochondrial injury in rats with sepsis induced by lipopolysaccharide]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2016; 18:159-64. [PMID: 26903064 PMCID: PMC7403040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 12/01/2015] [Indexed: 08/01/2024]
Abstract
OBJECTIVE To investigate the correlation between uncoupling protein 2 (UCP2) expression and myocardial mitochondria injury in rats with sepsis induced by lipopolysaccharide (LPS). METHODS The rat model of sepsis was established through an intraperitoneal injection of LPS. Forty male Sprague-Dawley rats were randomly and equally divided into control group (an intraperitoneal injection of normal saline), sepsis 6 h group (LPS-6 h group), sepsis 12 h group (LPS-12 h group), sepsis 24 h group (LPS-24 h group), and sepsis 48 h group (LPS-48 h group). The serum and heart tissues were harvested at corresponding time points and myocardial mitochondria was extracted. The microplate reader was applied to measure creatine kinase (CK), creatine kinase-MB (CK-MB), and reactive oxygen species (ROS). Flow cytometry was applied to measure the degree of mitochondrial swelling and mitochondrial membrane potential (MMP). Western blot was used to measure the expression level of UCP2. Electron microscopy was applied to observe the morphological changes in heart tissues and myocardial mitochondria. RESULTS Compared with the control group, the LPS groups had significantly increased serum levels of CK, CK-MB, and myocardial ROS, as well as a significantly increased degree of mitochondrial swelling (P<0.05), and these values reached their peaks at 24 hours after LPS injection. The LPS groups had a significant decrease in MMP (P<0.05), which reached the lowest level at 24 hours after LPS injection. Western blot showed that the LPS groups had a significant increase in the expression level of myocardial UCP2 compared with the control group (P<0.05), which reached its peak at 24 hours after LPS injection. The results of electron microscopy showed mitochondrial swelling, partial rupture of the mitochondrial membrane, and cavity formation in rats in the LPS groups. The most severe lesions occurred in the LPS-24 h group. In rats with LPS, the ROS level in the myocardial mitochondria and the degree of mitochondrial swelling were positively correlated with the expression level of UCP2 (r=0.796 and 0.893, respectively; P<0.05), while MMP was negatively correlated with the expression level of UCP2 (r=-0.903, P<0.05). CONCLUSIONS In the rat model of sepsis, the myocardium and myocardial mitochondria have obvious injuries, and the expression level of UCP2 is closely correlated with mitochondrial injury. Therefore, UCP2 might play an important role in myocardial mitochondrial injury in sepsis.
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Affiliation(s)
- Jin-Da Huang
- Department of Pediatrics, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China.
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Preexposure to Olive Oil Polyphenols Extract Increases Oxidative Load and Improves Liver Mass Restoration after Hepatectomy in Mice via Stress-Sensitive Genes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:9191407. [PMID: 26925195 PMCID: PMC4746397 DOI: 10.1155/2016/9191407] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/09/2015] [Accepted: 12/13/2015] [Indexed: 12/30/2022]
Abstract
Polyphenols can act as oxidants in some conditions, inducing redox-sensitive genes. We investigated the effect of preexposure to the olive oil polyphenols extract (PFE) on time-dependent changes in the hepatic oxidative state in a model of liver regeneration—a process in which oxidative stress associated with the metabolic overload accounts for the early events that contribute to the onset of liver self-repair. Liver regeneration was induced by one-third hepatectomy in mice. Prior to hepatectomy, mice were intraperitoneally given either PFE (50 mg/kg body weight) or saline for seven consecutive days, while respective controls received vehicle alone. Redox state-regulating enzymes and thiol proteins along with the mRNA levels of Nrf2 gene and its targets γ-glutamylcysteine synthetase and heme oxygenase-1 were determined at different time intervals after hepatectomy. The liver mass restoration was calculated to assess hepatic regeneration. The resulting data demonstrate the effectiveness of preexposure to PFE in stimulating liver regeneration in a model of a small tissue loss which may be ascribed to the transient increase in oxidant load during the first hours after hepatectomy and associated induction of stress response gene-profiles under the control of Nrf2.
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de Oliveira MR, Nabavi SF, Manayi A, Daglia M, Hajheydari Z, Nabavi SM. Resveratrol and the mitochondria: From triggering the intrinsic apoptotic pathway to inducing mitochondrial biogenesis, a mechanistic view. Biochim Biophys Acta Gen Subj 2016; 1860:727-45. [PMID: 26802309 DOI: 10.1016/j.bbagen.2016.01.017] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/19/2015] [Accepted: 01/06/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Mitochondria, the power plants of the cell, are known as a cross-road of different cellular signaling pathways. These cytoplasmic double-membraned organelles play a pivotal role in energy metabolism and regulate calcium flux in the cells. It is well known that mitochondrial dysfunction is associated with different diseases such as neurodegeneration and cancer. A growing body of literature has shown that polyphenolic compounds exert direct effects on mitochondrial ultra-structure and function. Resveratrol is known as one of the most common bioactive constituents of red wine, which improves mitochondrial functions under in vitro and in vivo conditions. SCOPE OF REVIEW This paper aims to review the molecular pathways underlying the beneficial effects of resveratrol on mitochondrial structure and functions. In addition, we discuss the chemistry and main sources of resveratrol. MAJOR CONCLUSIONS Resveratrol represents the promising effects on mitochondria in different experimental models. However, there are several reports on the detrimental effects elicited by resveratrol on mitochondria. GENERAL SIGNIFICANCE An understanding of the chemistry and source of resveratrol, its bioavailability and the promising effects on mitochondria brings a new hope to therapy of mitochondrial dysfunction-related diseases.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Department of Chemistry, ICET, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, CEP 78060-900 Cuiabá, MT, Brazil.
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Azadeh Manayi
- Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Maria Daglia
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Italy
| | - Zohreh Hajheydari
- Department of Dermatology, Boo Ali Sina (Avicenna) Hospital, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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76
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BQ123 Stimulates Skeletal Muscle Antioxidant Defense via Nrf2 Activation in LPS-Treated Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:2356853. [PMID: 26823945 PMCID: PMC4707360 DOI: 10.1155/2016/2356853] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/24/2015] [Accepted: 10/11/2015] [Indexed: 01/02/2023]
Abstract
Little is understood of skeletal muscle tissue in terms of oxidative stress and inflammation. Endothelin-1 is an endogenous, vasoconstrictive peptide which can induce overproduction of reactive oxygen species and proinflammatory cytokines. The aim of this study was to evaluate whether BQ123, an endothelin-A receptor antagonist, influences the level of TNF-α, IL-6, SOD-1, HO-1, Nrf2 mRNA, and NF-κB subunit RelA/p65 mRNA in the femoral muscle obtained from endotoxemic rats. Male Wistar rats were divided into 4 groups (n = 6) and received iv (1) saline (control), (2) LPS (15 mg/kg), (3) BQ123 (1 mg/kg), (4) BQ123 (1 mg/kg), and LPS (15 mg/kg, resp.) 30 min later. Injection of LPS led to significant increase in levels of RelA/p65 mRNA, TNF-α, and IL-6, while content of SOD-1, HO-1, and Nrf2 mRNA was unchanged. Administration of BQ123 prior to LPS challenge resulted in a significant reduction in RelA/p65 mRNA, TNF-α, and IL-6 levels, as well as markedly elevated concentrations of SOD-1, HO-1, and Nrf2 mRNA. BQ123 appears to enhance antioxidant defense and prevent production of TNF-α and IL-6 in skeletal muscle of LPS-treated rat. In conclusion, endothelin-A receptor antagonism exerts significant impact on the skeletal muscle favouring anti-inflammatory effects and protection against oxidative stress.
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77
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Interactions between Autophagy and Bacterial Toxins: Targets for Therapy? Toxins (Basel) 2015; 7:2918-58. [PMID: 26248079 PMCID: PMC4549733 DOI: 10.3390/toxins7082918] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 07/27/2015] [Accepted: 07/28/2015] [Indexed: 01/07/2023] Open
Abstract
Autophagy is a physiological process involved in defense mechanisms for clearing intracellular bacteria. The autophagic pathway is finely regulated and bacterial toxins interact with this process in a complex manner. Bacterial toxins also interact significantly with many biochemical processes. Evaluations of the effects of bacterial toxins, such as endotoxins, pore-forming toxins and adenylate cyclases, on autophagy could support the development of new strategies for counteracting bacterial pathogenicity. Treatment strategies could focus on drugs that enhance autophagic processes to improve the clearance of intracellular bacteria. However, further in vivo studies are required to decipher the upregulation of autophagy and potential side effects limiting such approaches. The capacity of autophagy activation strategies to improve the outcome of antibiotic treatment should be investigated in the future.
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78
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Xu LL, Zhu JF, Xu XL, Zhu J, Li L, Xi MY, Jiang ZY, Zhang MY, Liu F, Lu MC, Bao QC, Li Q, Zhang C, Wei JL, Zhang XJ, Zhang LS, You QD, Sun HP. Discovery and Modification of in Vivo Active Nrf2 Activators with 1,2,4-Oxadiazole Core: Hits Identification and Structure–Activity Relationship Study. J Med Chem 2015; 58:5419-36. [DOI: 10.1021/acs.jmedchem.5b00170] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Li-Li Xu
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jun-Feng Zhu
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xiao-Li Xu
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jie Zhu
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Li Li
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Mei-Yang Xi
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Zheng-Yu Jiang
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Ming-Ye Zhang
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Fang Liu
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Meng-chen Lu
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Qi-Chao Bao
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Qi Li
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Chao Zhang
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jin-Lian Wei
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xiao-Jin Zhang
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing 210009, China
| | - Lian-Shan Zhang
- National Engineering and Research Center for Target Drugs, Jiangsu Hengrui Medicine Co. Ltd., Lianyungang 222000, China
| | - Qi-Dong You
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
- National Engineering and Research Center for Target Drugs, Jiangsu Hengrui Medicine Co. Ltd., Lianyungang 222000, China
| | - Hao-Peng Sun
- Jiangsu
Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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79
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Lang F, Qin Z, Li F, Zhang H, Fang Z, Hao E. Apoptotic Cell Death Induced by Resveratrol Is Partially Mediated by the Autophagy Pathway in Human Ovarian Cancer Cells. PLoS One 2015; 10:e0129196. [PMID: 26067645 PMCID: PMC4466135 DOI: 10.1371/journal.pone.0129196] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 05/07/2015] [Indexed: 12/19/2022] Open
Abstract
Resveratrol (trans-3,4,5’ –trihydroxystilbene) is an active compound in food, such as red grapes, peanuts, and berries. Resveratrol exhibits an anticancer effect on various human cancer cells. However, the mechanism of resveratrol-induced anti-cancer effect at the molecular level remains to be elucidated. In this study, the mechanism underlying the anti-cancer effect of resveratrol in human ovarian cancer cells (OVCAR-3 and Caov-3) was investigated using various molecular biology techniques, such as flow cytometry, western blotting, and RNA interference, with a major focus on the potential role of autophagy in resveratrol-induced apoptotic cell death. We demonstrated that resveratrol induced reactive oxygen species (ROS) generation, which triggers autophagy and subsequent apoptotic cell death. Resveratrol induced ATG5 expression and promoted LC3 cleavage. The apoptotic cell death induced by resveratrol was attenuated by both pharmacological and genetic inhibition of autophagy. The autophagy inhibitor chloroquine, which functions at the late stage of autophagy, significantly reduced resveratrol-induced cell death and caspase 3 activity in human ovarian cancer cells. We also demonstrated that targeting ATG5 by siRNA also suppressed resveratrol-induced apoptotic cell death. Thus, we concluded that a common pathway between autophagy and apoptosis exists in resveratrol-induced cell death in OVCAR-3 human ovarian cancer cells.
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Affiliation(s)
- Fangfang Lang
- Department of Obstetrics and Gynecology, Jinan Central Hospital, Affiliated with Shandong University, Jinan, China
| | - Zhaoyang Qin
- Department of General Surgery, Rizhao People’s Hospital, Rizhao, China
| | - Fang Li
- Department of Health, Jinan Central Hospital, Affiliated with Shandong University, Jinan, China
| | - Huilin Zhang
- Central Laboratory, Jinan Central Hospital, Affiliated with Shandong University, Jinan, China
| | - Zhenghui Fang
- Department of Obstetrics and Gynecology, Jinan Central Hospital, Affiliated with Shandong University, Jinan, China
| | - Enkui Hao
- Department of Cardiology, Qianfoshan Hospital, Affiliated with Shandong University, Jinan, China
- * E-mail:
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80
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Chang YP, Ka SM, Hsu WH, Chen A, Chao LK, Lin CC, Hsieh CC, Chen MC, Chiu HW, Ho CL, Chiu YC, Liu ML, Hua KF. Resveratrol inhibits NLRP3 inflammasome activation by preserving mitochondrial integrity and augmenting autophagy. J Cell Physiol 2015; 230:1567-79. [PMID: 25535911 DOI: 10.1002/jcp.24903] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 12/18/2014] [Indexed: 12/12/2022]
Abstract
The NLRP3 inflammasome is a caspase-1-containing multi-protein complex that controls the release of IL-1β and plays important roles in the development of inflammatory disease. Here, we report that resveratrol, a polyphenolic compound naturally produced by plants, inhibits NLRP3 inflammasome-derived IL-1β secretion and pyroptosis in macrophages. Resveratrol inhibits the activation step of the NLRP3 inflammasome by suppressing mitochondrial damage. Resveratrol also induces autophagy by activating p38, and macrophages treated with an autophagy inhibitor are resistant to the suppressive effects of resveratrol. In addition, resveratrol administration mitigates glomerular proliferation, glomerular sclerosis, and glomerular inflammation in a mouse model of progressive IgA nephropathy. These findings were associated with decreased renal mononuclear leukocyte infiltration, reduced renal superoxide anion levels, and inhibited renal NLRP3 inflammasome activation. Our data indicate that resveratrol suppresses NLRP3 inflammasome activation by preserving mitochondrial integrity and by augmenting autophagy.
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Affiliation(s)
- Ya-Ping Chang
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
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81
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C1q/Tumor Necrosis Factor-Related Protein 9 Protects against Acute Myocardial Injury through an Adiponectin Receptor I-AMPK-Dependent Mechanism. Mol Cell Biol 2015; 35:2173-85. [PMID: 25870106 DOI: 10.1128/mcb.01518-14] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 04/03/2015] [Indexed: 11/20/2022] Open
Abstract
Obesity is a risk factor for cardiovascular disease. C1q/tumor necrosis factor-related protein 9 (CTRP9) is an adipokine that is downregulated by obesity. We investigated the role of CTRP9 in cardiac injury with loss-of-function genetic manipulations and defined the receptor-mediated signaling pathway downstream of this adipokine. CTRP9-knockout (CTRP9-KO) mice at the age of 12 weeks were indistinguishable from wild-type (WT) mice under basal conditions. CTRP9-KO mice had exacerbated contractile left ventricle dysfunction following intraperitoneal injection of lipopolysaccharide (LPS) compared to WT mice. Administration of LPS to CTRP9-KO mice also resulted in increased expression of proinflammatory cytokines and oxidative stress markers in the heart compared to WT mice. Likewise, CTRP9-KO mice showed increased myocardial infarct size and elevated expression of inflammatory mediators in ischemic heart following ischemia and reperfusion compared to WT mice. Treatment of cardiac myocytes with CTRP9 protein led to suppression of LPS-induced expression of proinflammatory genes, which was reversed by blockade of AMPK or ablation of adiponectin receptor I (AdipoR1). Systemic delivery of CTRP9 attenuated LPS-induced cardiac dysfunction in WT mice but not in muscle-specific transgenic mice expressing dominant-negative mutant form of AMPK or in AdipoR1-knockout mice. CTRP9 protects against acute cardiac damage in response to pathological stimuli by suppressing inflammatory reactions through AdipoR1/AMPK-dependent mechanisms.
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82
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Park EJ, Pezzuto JM. The pharmacology of resveratrol in animals and humans. Biochim Biophys Acta Mol Basis Dis 2015; 1852:1071-113. [PMID: 25652123 DOI: 10.1016/j.bbadis.2015.01.014] [Citation(s) in RCA: 192] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Revised: 01/01/2015] [Accepted: 01/21/2015] [Indexed: 12/12/2022]
Abstract
In addition to thousands of research papers related to resveratrol (RSV), approximately 300 review articles have been published. Earlier research tended to focus on pharmacological activities of RSV related to cardiovascular systems, inflammation, and carcinogenesis/cancer development. More recently, the horizon has been broadened by exploring the potential effect of RSV on the aging process, diabetes, neurological dysfunction, etc. Herein, we primarily focus on the in vivo pharmacological effects of RSV reported over the past 5 years (2009-2014). In addition, recent clinical intervention studies performed with resveratrol are summarized. Some discrepancies exist between in vivo studies with animals and clinical studies, or between clinical studies, which are likely due to disparate doses of RSV, experimental settings, and subject variation. Nevertheless, many positive indications have been reported with mammals, so it is reasonable to advocate for the conduct of more definitive clinical studies. Since the safety profile is pristine, an added advantage is the use of RSV as a dietary supplement. This article is part of a Special Issue entitled: Resveratrol: Challenges in translating pre-clinical findings to improved patient outcomes.
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Affiliation(s)
- Eun-Jung Park
- The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, USA
| | - John M Pezzuto
- The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, USA.
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83
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Sirota R, Gibson D, Kohen R. The role of the catecholic and the electrophilic moieties of caffeic acid in Nrf2/Keap1 pathway activation in ovarian carcinoma cell lines. Redox Biol 2014; 4:48-59. [PMID: 25498967 PMCID: PMC4309848 DOI: 10.1016/j.redox.2014.11.012] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 11/29/2014] [Indexed: 01/19/2023] Open
Abstract
In recent years, numerous studies have demonstrated the health benefits of polyphenols. A major portion of polyphenols in western diet are derived from coffee, which is one of the most consumed beverages in the world. It has been shown that many polyphenols gain their beneficial properties (e.g. cancer prevention) through the activation of the Nrf2/Keap1 pathway as well as their direct antioxidant activity. However, activation of Nrf2 in cancer cells might lead to resistance towards therapy through induction of phase II enzymes. In the present work we hypothesize that caffeic acid (CA), a coffee polyphenol, might act as an electrophile in addition to its nucleophilic properties and is capable of inducing the Nrf2/EpRE pathway in cancer cells. The results indicate that CA induces Nrf2 translocation into the nucleus and consequently its transcription. It has been demonstrated that generated hydrogen peroxide is involved in the induction process. It has also been found that this process is induced predominantly via the double bond in CA (Michael acceptor). However, surprisingly the presence of both nucleophilic and electrophilic moieties in CA resulted in a synergetic activation of Nrf2 and phase II enzymes. We also found that CA possesses a dual activity, although inducing GSTP1 and GSR, it inhibiting their enzymatic activity. In conclusion, the mechanism of induction of Nrf2 pathway and phase II enzymes by CA has been elucidated. The electrophilic moiety in CA is essential for the oxidation of the Keap1 protein. It should be noted that while the nucleophilic moiety (the catechol/quinone moiety) can provide scavenging ability, it cannot contribute directly to Nrf2 induction. It was found that this process may be induced by H2O2 produced by the catechol group. On the whole, it appears that CA might play a major role in the cancer cells by enhancing their resistance to treatment. The electrophilic moiety in CA is essential for the oxidation of the Keap1 protein. The nucleophilic moiety contribute to Nrf2/Keap1 activation via production of H2O2. CA possesses a dual activity, as inducer and as inhibitor of GSTP1 and GSR1. The effect of coffee on healthy subjects and cancer patients may be different.
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Affiliation(s)
- R Sirota
- Faculty of Medicine, Institute for Drug Research, Hebrew University of Jerusalem, Israel
| | - D Gibson
- Faculty of Medicine, Institute for Drug Research, Hebrew University of Jerusalem, Israel
| | - R Kohen
- Faculty of Medicine, Institute for Drug Research, Hebrew University of Jerusalem, Israel.
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84
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Resveratrol is active against Leishmania amazonensis: in vitro effect of its association with Amphotericin B. Antimicrob Agents Chemother 2014; 58:6197-208. [PMID: 25114129 DOI: 10.1128/aac.00093-14] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Resveratrol is a polyphenol found in black grapes and red wine and has many biological activities. In this study, we evaluated the effect of resveratrol alone and in association with amphotericin B (AMB) against Leishmania amazonensis. Our results demonstrate that resveratrol possesses both antipromastigote and antiamastigote effects, with 50% inhibitory concentrations (IC50s) of 27 and 42 μM, respectively. The association of resveratrol with AMB showed synergy for L. amazonensis amastigotes, as demonstrated by the mean sums of fractional inhibitory index concentration (mean ΣFIC) of 0.483, although for promastigotes, this association was indifferent. Treatment with resveratrol increased the percentage of promastigotes in the sub-G0/G1 phase of the cell cycle, reduced the mitochondrial potential, and showed an elevated choline peak and CH2-to-CH3 ratio in the nuclear magnetic resonance (NMR) spectroscopy analysis; all these features indicate parasite death. Resveratrol also decreased the activity of the enzyme arginase in uninfected and infected macrophages with and without stimulation with interleukin-4 (IL-4), also implicating arginase inhibition in parasite death. The anti-Leishmania effect of resveratrol and its potential synergistic association with AMB indicate that these compounds should be subjected to further studies of drug association therapy in vivo.
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85
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Morel J, Singer M. Statins, fibrates, thiazolidinediones and resveratrol as adjunctive therapies in sepsis: could mitochondria be a common target? Intensive Care Med Exp 2014; 2:9. [PMID: 26266909 PMCID: PMC4512973 DOI: 10.1186/2197-425x-2-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 01/30/2014] [Indexed: 02/07/2023] Open
Abstract
Through their pleiotropic actions, statins, fibrates, thiazolidinediones and resveratrol can target multiple mechanisms involved in sepsis. Their actions on mitochondrial function are of interest in a pathological state where bioenergetic failure may play a key role in the development of organ dysfunction. We review these four drug groups as potential adjunctive therapies in sepsis with a particular focus upon mitochondria. Systematic review of clinical and experimental trials was done with a literature search using the PubMed database. Search terms included statins, fibrates, thiazolidinediones, resveratrol, mitochondria, sepsis, peroxisome proliferator-activated receptors, inflammation, oxidative stress and organ dysfunction. With the exception of statins, most of the compelling evidence for the use of these agents in sepsis comes from the experimental literature. The agents all exert anti-inflammatory and anti-oxidant properties, plus protective effects against mitochondrial dysfunction and stimulation of mitochondrial biogenesis. Improved outcomes (organ dysfunction, survival) have been reported in a variety of sepsis models. Notably, positive outcome effects were more commonly seen when the agents were given as pre- rather than post-treatment of sepsis. Statins, fibrates, thiazolidinediones and resveratrol prevent sepsis-induced injury to organs and organelles with outcome improvements. Their effects on mitochondrial function may be integral in offering this protection. Definitive clinical trials are needed to evaluate their utility in septic patients or those at high risk of developing sepsis.
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Affiliation(s)
- Jerome Morel
- Département d'anesthésie réanimation, Centre Hospitalier Universitaire de Saint Etienne, 42055, Saint Etienne, France,
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86
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Maslinic acid protects vascular smooth muscle cells from oxidative stress through Akt/Nrf2/HO-1 pathway. Mol Cell Biochem 2014; 390:61-7. [PMID: 24553817 DOI: 10.1007/s11010-013-1956-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 12/19/2013] [Indexed: 01/09/2023]
Abstract
Maslinic acid (MA) is a natural triterpenoid widely distributed in edible and medicinal plants and has been demonstrated to possess bioactivity. However, its effect on vascular smooth muscle cells (VSMC) has not been explored yet. In this study, we found that heme oxygenase-1 (HO-1) expression was increased in VSMCs treated with MA. Furthermore, MA was found to induce Akt activation in a dose- and time-dependent manner. Wortmannin suppression of Akt was able to abolish HO-1 upregulation in VSMCs, suggesting the requirement of Akt activation for MA effect on HO-1. Further investigation indicated that Akt activation resulted in the elevated expression of Nrf2, a HO-1 promoter, in MA-treated VMSCs. Finally, we found that MA was able to protect VSMCs from oxidative stress induced by H2O2. Blocking the activation of Akt/Nrf2/HO-1 was able to compromise the protective effect of MA on VSMCs. Collectively, we provided evidence that MA protected VMSCs from oxidative stress through Akt/Nrf2/HO-1 pathway.
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87
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Raj P, Lieben Louis X, Thandapilly SJ, Movahed A, Zieroth S, Netticadan T. Potential of resveratrol in the treatment of heart failure. Life Sci 2014; 95:63-71. [DOI: 10.1016/j.lfs.2013.12.011] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 12/04/2013] [Accepted: 12/09/2013] [Indexed: 01/11/2023]
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