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Ito T, Murakami S. Taurine deficiency associated with dilated cardiomyopathy and aging. J Pharmacol Sci 2024; 154:175-181. [PMID: 38395518 DOI: 10.1016/j.jphs.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 02/25/2024] Open
Abstract
Taurine (2-aminoethanesulfonic acid) is a free amino acid found ubiquitously and abundantly in mammalian tissues. Taurine content in the heart is approximately 20 mM, which is approximately 100 times higher than plasma concentration. The high intracellular concentration of taurine is maintained by the taurine transporter (TauT; Slc6a6). Taurine plays various roles, including the regulation of intracellular ion dynamics, calcium handling, and acting as an antioxidant in the heart. Some species, such as cats and foxes, have low taurine biosynthetic capacity, and dietary taurine deficiency can lead to disorders such as dilated cardiomyopathy and blindness. In humans, the relationship between dietary taurine deficiency and cardiomyopathy is not yet clear, but a genetic mutation related to the taurine transporter has been reported to be associated with dilated cardiomyopathy. On the other hand, many studies have shown an association between dietary taurine intake and age-related diseases. Notably, it has recently been reported that taurine declines with age and is associated with lifespan in worms and mice, as well as healthspan in mice and monkeys. In this review, we summarize the role of dietary and genetic taurine deficiency in the development of cardiomyopathy and aging.
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Affiliation(s)
- Takashi Ito
- Department of Bioscience and Biotechnology, Fukui Prefectural University, 4-1-1 Matsuokakenjojima, Eiheiji-cho, Yoshida-gun, Fukui, 910-1195, Japan.
| | - Shigeru Murakami
- Department of Nursing Science, Fukui Prefectural University, 4-1-1 Matsuokakenjojima, Eiheiji-cho, Yoshida-gun, Fukui, 910-1195, Japan
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Surai PF, Earle-Payne K, Kidd MT. Taurine as a Natural Antioxidant: From Direct Antioxidant Effects to Protective Action in Various Toxicological Models. Antioxidants (Basel) 2021; 10:1876. [PMID: 34942978 PMCID: PMC8698923 DOI: 10.3390/antiox10121876] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 12/18/2022] Open
Abstract
Natural antioxidants have received tremendous attention over the last 3 decades. At the same time, the attitude to free radicals is slowly changing, and their signalling role in adaptation to stress has recently received a lot of attention. Among many different antioxidants in the body, taurine (Tau), a sulphur-containing non-proteinogenic β-amino acid, is shown to have a special place as an important natural modulator of the antioxidant defence networks. Indeed, Tau is synthesised in most mammals and birds, and the Tau requirement is met by both synthesis and food/feed supply. From the analysis of recent data, it could be concluded that the direct antioxidant effect of Tau due to scavenging free radicals is limited and could be expected only in a few mammalian/avian tissues (e.g., heart and eye) with comparatively high (>15-20 mM) Tau concentrations. The stabilising effects of Tau on mitochondria, a prime site of free radical formation, are characterised and deserve more attention. Tau deficiency has been shown to compromise the electron transport chain in mitochondria and significantly increase free radical production. It seems likely that by maintaining the optimal Tau status of mitochondria, it is possible to control free radical production. Tau's antioxidant protective action is of great importance in various stress conditions in human life, and is related to commercial animal and poultry production. In various in vitro and in vivo toxicological models, Tau showed AO protective effects. The membrane-stabilizing effects, inhibiting effects on ROS-producing enzymes, as well as the indirect AO effects of Tau via redox balance maintenance associated with the modulation of various transcription factors (e.g., Nrf2 and NF-κB) and vitagenes could also contribute to its protective action in stress conditions, and thus deserve more attention.
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Affiliation(s)
- Peter F. Surai
- Vitagene and Health Research Centre, Bristol BS4 2RS, UK
- Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria
- Biochemistry and Physiology Department, Saint-Petersburg State University of Veterinary Medicine, 196084 St. Petersburg, Russia
- Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, H-2103 Gödöllo, Hungary
| | - Katie Earle-Payne
- NHS Greater Glasgow and Clyde, Renfrewshire Health and Social Care Centre, 10 Ferry Road, Renfrew PA4 8RU, UK;
| | - Michael T. Kidd
- Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA;
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Ding Y, Yao W, Fakhar-E-Alam Kulyar M, Mo Q, Pan H, Zhang Y, Ma B, He Y, Zhang M, Hong J, Waqas M, Li J. Taurine is an effective therapy against thiram induced tibial dyschondroplasia via HIF-1α/VEGFA and β-catenin/ GSK-3β pathways in broilers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:112981. [PMID: 34781124 DOI: 10.1016/j.ecoenv.2021.112981] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/01/2021] [Accepted: 11/07/2021] [Indexed: 06/13/2023]
Abstract
Thiram causes tibial dyschondroplasia in broilers, leading to a significant economic loss in the poultry industry. Our study explored the effects of taurine in thiram induced tibial dyschondroplasia (TD) through in vivo and in vitro approches. In in vivo study, thiram resulted in lameness disorder, low production parameters ALP, ACP, and a high level of NOS. While, the taurine exhibited promising effect by reducing lameness, increasing ALP, ACP levels, and significantly lowering NOS level with the restoration of the growth plate. In in vitro study, thiram caused distortion and disintegration of chondrocytes. The CCK-8 technique revealed the lower cell activity in TD as compared with the treatment group. Even, the treatment and taurine groups had higher cell activity than control group. Also, the chondrocyte morphology progressively reverted to normal after taurine treatment. It might effectively decreased the symptoms of TD in broilers and their production performance. Further research found that the taurine effectively improved chondrocytes' cell viability and recovered lameness disorder by regulation of HIF-1α, VEGFA, and Wnt/β-catenin signaling pathways. In summary, these results indicate that taurine has a protective effect on thiram-induced broilers and it can enhance the growth activity by directly affecting the development of chondrocytes and blood vessels.
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Affiliation(s)
- Yanmei Ding
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | | | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Huachun Pan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yan Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Bingjie Ma
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Ya He
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Mengdi Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jiajia Hong
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Muhammad Waqas
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China.
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Zhang H, Guo J, Cui S, Zhou Y. Taurine Has Potential Protective Effects against the Chronic Cardiotoxicity Induced by Doxorubicin in Mice. Biol Pharm Bull 2021; 44:1732-1737. [PMID: 34719649 DOI: 10.1248/bpb.b21-00462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Doxorubicin (DOX) is an effective anticancer anthracycline drug; however, the cardiotoxicity limits its application. The aim of the present study was to investigate the potential protective effect of taurine against DOX-induced chronic cardiotoxicity in mice. We found that exogenous supplementation of taurine can inhibit the weight loss of mice caused by DOX. The increased activity of myocardial enzymes creatine kinase (CK) and lactate dehydrogenase (LDH) in response to DOX treatment were significantly hampered. In addition, taurine supplementation alleviated the decrease in superoxide dismutase (SOD) activity, glutathione (GSH) content, glutathione peroxidase 4 (Gpx4) expression, and the increase in malondialdehyde (MDA) content caused by DOX. Besides, taurine alleviated myocardial myofibrillar disruption and mitochondrial edema. Furthermore, our results showed that taurine decreased the expressions of cleaved caspase-3 and Bax/Bcl2, thereby inhibiting apoptosis. These collective data demonstrated that exogenous taurine supplementation has a potentially protective effect against the myocardial damage caused by doxorubicin in mice by enhancing antioxidant capacity and reducing oxidative damage and apoptosis.
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Affiliation(s)
| | - Jiajia Guo
- College of Veterinary Medicine, Yangzhou University
| | - Sheng Cui
- College of Veterinary Medicine, Yangzhou University.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University
| | - Yewen Zhou
- College of Veterinary Medicine, Yangzhou University.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses
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Cadeddu Dessalvi C, Deidda M, Noto A, Madeddu C, Cugusi L, Santoro C, López-Fernández T, Galderisi M, Mercuro G. Antioxidant Approach as a Cardioprotective Strategy in Chemotherapy-Induced Cardiotoxicity. Antioxid Redox Signal 2021; 34:572-588. [PMID: 32151144 DOI: 10.1089/ars.2020.8055] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Significance: Chemotherapy-induced cardiotoxicity (CTX) has been associated with redox signaling imbalance. In fact, redox reactions are crucial for normal heart physiology, whereas excessive oxidative stress can cause cardiomyocyte structural damage. Recent Advances: An antioxidant approach as a cardioprotective strategy in this setting has shown encouraging results in preventing anticancer drug-induced CTX. Critical Issues: In fact, traditional heart failure drugs as well as many other compounds and nonpharmacological strategies, with a partial effect in reducing oxidative stress, have been shown to counterbalance chemotherapy-induced CTX in this setting to some extent. Future Directions: Given the various pathways of toxicity involved in different chemotherapeutic schemes, interactions with redox balance need to be fine-tuned and a personalized cardioprotective approach seems to be required.
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Affiliation(s)
| | - Martino Deidda
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Antonio Noto
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Clelia Madeddu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Lucia Cugusi
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Ciro Santoro
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Teresa López-Fernández
- Cardiology Service, Cardio-Oncology Unit, La Paz University Hospital, IdiPAz Research Institute, Ciber CV, Madrid, Spain
| | - Maurizio Galderisi
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Giuseppe Mercuro
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
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Protective effect of taurine against doxorubicin-induced cardiotoxicity in rats: echocardiographical and histological findings. Amino Acids 2019; 51:1649-1655. [DOI: 10.1007/s00726-019-02801-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 10/24/2019] [Indexed: 12/24/2022]
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Mistry RK, Brewer AC. Redox-Dependent Regulation of Sulfur Metabolism in Biomolecules: Implications for Cardiovascular Health. Antioxid Redox Signal 2019; 30:972-991. [PMID: 28661184 DOI: 10.1089/ars.2017.7224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
SIGNIFICANCE Sulfur-containing amino acids are integral to the molecular mechanisms that underlie many aspects of cellular function and homeostasis, facilitated by reversible changes in the oxidation states of sulfur atoms. Sulfur-containing amino acids are metabolically linked by interacting pathways that impact the one-carbon metabolic cycle and generation of methyl groups, the folate cycle, and maintenance of the major cellular redox buffer; glutathione. Dysregulation of these pathways is associated with diverse pathologies, notably of the cardiovascular (CV) system, which are typically characterized by inappropriate plasma levels of sulfur-containing amino acids. Recent Advances: Perhaps not surprisingly, the cellular redox state has emerged as a major regulator of many enzymatic processes within these metabolic cycles. The metabolism of cysteine can also result in the production of hydrogen sulfide (H2S), a signaling molecule whose activity is potentially linked to intracellular levels of both reactive oxygen species (ROS) and molecular oxygen. CRITICAL ISSUES In most cases, the endogenous physiological sources of ROS that might mediate the interlinked metabolic pathways of sulfur-containing biomolecules remain unknown. However, the family of NADPH oxidases, and Nox4 in particular, is emerging as a likely candidate. FUTURE DIRECTIONS This review focuses on the current knowledge of key aspects of sulfur metabolism, which are regulated by redox-based chemical reactions, and the likely intracellular oxidant sources that might mediate this regulation. This knowledge will be important to guide future targeted therapeutic interventions in diverse CV disorders.
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Affiliation(s)
- Rajesh K Mistry
- Department of Cardiology, BHF Centre of Research Excellence, King's College London, London, United Kingdom
| | - Alison C Brewer
- Department of Cardiology, BHF Centre of Research Excellence, King's College London, London, United Kingdom
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McKirnan MD, Ichikawa Y, Zhang Z, Zemljic-Harpf AE, Fan S, Barupal DK, Patel HH, Hammond HK, Roth DM. Metabolomic analysis of serum and myocardium in compensated heart failure after myocardial infarction. Life Sci 2019; 221:212-223. [PMID: 30731143 DOI: 10.1016/j.lfs.2019.01.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/18/2019] [Accepted: 01/25/2019] [Indexed: 01/06/2023]
Abstract
AIMS To determine the metabolic adaptations to compensated heart failure using a reproducible model of myocardial infarction and an unbiased metabolic screen. To address the limitations in sample availability and model variability observed in preclinical and clinical metabolic investigations of heart failure. MAIN METHODS Metabolomic analysis was performed on serum and myocardial tissue from rabbits after myocardial infarction (MI) was induced by cryo-injury of the left ventricular free wall. Rabbits followed for 12 weeks after MI exhibited left ventricular dilation and depressed systolic function as determined by echocardiography. Serum and tissue from the viable left ventricular free wall, interventricular septum and right ventricle were analyzed using a gas chromatography time of flight mass spectrometry-based untargeted metabolomics assay for primary metabolites. KEY FINDINGS Unique results included: a two- three-fold increase in taurine levels in all three ventricular regions of MI rabbits and similarly, the three regions had increased inosine levels compared to sham controls. Reduced myocardial levels of myo-inositol in the myocardium of MI animals point to altered phospholipid metabolism and membrane receptor function in heart failure. Metabolite profiles also provide evidence for responses to oxidative stress and an impairment in TCA cycle energy production in the failing heart. SIGNIFICANCE Our results revealed metabolic changes during compensated cardiac dysfunction and suggest potential targets for altering the progression of heart failure.
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Affiliation(s)
- M Dan McKirnan
- Department of Anesthesiology, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America; Department of Medicine, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America
| | - Yasuhiro Ichikawa
- Department of Anesthesiology, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America
| | - Zheng Zhang
- Department of Anesthesiology, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America
| | - Alice E Zemljic-Harpf
- Department of Anesthesiology, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America
| | - Sili Fan
- UC Davis Genome Center, University of California, Davis, CA, United States of America
| | - Dinesh Kumar Barupal
- UC Davis Genome Center, University of California, Davis, CA, United States of America
| | - Hemal H Patel
- Department of Anesthesiology, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America
| | - H Kirk Hammond
- Department of Medicine, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America
| | - David M Roth
- Department of Anesthesiology, University of California, the Veterans Affairs San Diego Healthcare System, La Jolla, San Diego, CA, United States of America.
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Fang H, Meng F, Piao F, Jin B, Li M, Li W. Effect of Taurine on Intestinal Microbiota and Immune Cells in Peyer's Patches of Immunosuppressive Mice. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1155:13-24. [PMID: 31468382 DOI: 10.1007/978-981-13-8023-5_2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Taurine is a sulfur-containing amino acid which has strong activities in enhancing immunity. Gut microbiota is closely interrelated with intestinal mucosal immunity, but the effects and mechanisms of taurine on intestinal microbiota and mucosal immune cells under an immunosuppressive condition remain unclear. This study was conducted to investigate the effect of taurine on gut microbiota and immune cells in Peyer's patches (PPs) of dexamethasone (Dex)-induced immunosuppressive mice. Mice (4-week-old, Male) were randomly divided into three groups: the Control group (n = 12), the Dex-induced immunosuppressive model group (n = 12) and the taurine intervention group (n = 12). The model was established by Dex injection for 7 days and the taurine intervention group was gavaged 100 mg/kg soluble taurine for 30 days. The changes of intestinal microbiota and immune cells in PPs were tested by denaturing gradient gel electrophoresis (DGGE) and flow cytometry, respectively. Results showed that the microbiota in immunosuppressive mice was obvious different compared with control group, in which, the Lachnospiraceae and Ruminococcaceae groups were significantly reduced, and their reduction were reversed after taurine intervention. Compared to the control group, the total cell number in PPs, as well as the subsets of CD3+ cells (T cells), CD19+ cells (B cells) in model groups were significantly lower, and they were dramatically improved after taurine treatment. Our results suggested that taurine has a positive effect on i ntestinal homeostasis of the immunosuppressive mice.
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Affiliation(s)
- Hui Fang
- College of Basic Medical Sciences, Dalian Medical University, Dalian, Liaoning, China
| | - Fanpeng Meng
- College of Life Sciences, Liaoning Normal University, Dalian, Liaoning, China
| | - Fengyuan Piao
- College of Basic Medical Sciences, Dalian Medical University, Dalian, Liaoning, China
| | - Bo Jin
- Fundamental and Applied Cryobiology Group, Reproductive and Genetic Medicine Center, Dalian Municipal Women and Children's Medical Center, Dalian, Liaoning, China
| | - Ming Li
- College of Basic Medical Sciences, Dalian Medical University, Dalian, Liaoning, China
| | - Wenzhe Li
- College of Basic Medical Sciences, Dalian Medical University, Dalian, Liaoning, China.
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Jensen BC, Parry TL, Huang W, Beak JY, Ilaiwy A, Bain JR, Newgard CB, Muehlbauer MJ, Patterson C, Johnson GL, Willis MS. Effects of the kinase inhibitor sorafenib on heart, muscle, liver and plasma metabolism in vivo using non-targeted metabolomics analysis. Br J Pharmacol 2017; 174:4797-4811. [PMID: 28977680 PMCID: PMC5727336 DOI: 10.1111/bph.14062] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 09/11/2017] [Accepted: 09/25/2017] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE The human kinome consists of roughly 500 kinases, including 150 that have been proposed as therapeutic targets. Protein kinases regulate an array of signalling pathways that control metabolism, cell cycle progression, cell death, differentiation and survival. It is not surprising, then, that new kinase inhibitors developed to treat cancer, including sorafenib, also exhibit cardiotoxicity. We hypothesized that sorafenib cardiotoxicity is related to its deleterious effects on specific cardiac metabolic pathways given the critical roles of protein kinases in cardiac metabolism. EXPERIMENTAL APPROACH FVB/N mice (10 per group) were challenged with sorafenib or vehicle control daily for 2 weeks. Echocardiographic assessment of the heart identified systolic dysfunction consistent with cardiotoxicity in sorafenib-treated mice compared to vehicle-treated controls. Heart, skeletal muscle, liver and plasma were flash frozen and prepped for non-targeted GC-MS metabolomics analysis. KEY RESULTS Compared to vehicle-treated controls, sorafenib-treated hearts exhibited significant alterations in 11 metabolites, including markedly altered taurine/hypotaurine metabolism (25-fold enrichment), identified by pathway enrichment analysis. CONCLUSIONS AND IMPLICATIONS These studies identified alterations in taurine/hypotaurine metabolism in the hearts and skeletal muscles of mice treated with sorafenib. Interventions that rescue or prevent these sorafenib-induced changes, such as taurine supplementation, may be helpful in attenuating sorafenib-induced cardiac injury.
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Affiliation(s)
- Brian C Jensen
- McAllister Heart InstituteUniversity of North CarolinaChapel HillNCUSA
- Department of Internal MedicineDivision of Cardiology University of North CarolinaChapel HillNCUSA
- Department of PharmacologyUniversity of North CarolinaChapel HillNCUSA
| | - Traci L Parry
- McAllister Heart InstituteUniversity of North CarolinaChapel HillNCUSA
- Department of Pathology & Laboratory MedicineUniversity of North CarolinaChapel HillNCUSA
| | - Wei Huang
- McAllister Heart InstituteUniversity of North CarolinaChapel HillNCUSA
| | - Ju Youn Beak
- McAllister Heart InstituteUniversity of North CarolinaChapel HillNCUSA
| | - Amro Ilaiwy
- Sarah W. Stedman Nutrition and Metabolism Center, Duke Molecular Physiology InstituteDuke University Medical CenterDurhamNCUSA
- Division of Endocrinology, Metabolism, and Nutrition, Department of MedicineDuke University Medical CenterDurhamNCUSA
| | - James R Bain
- Sarah W. Stedman Nutrition and Metabolism Center, Duke Molecular Physiology InstituteDuke University Medical CenterDurhamNCUSA
- Division of Endocrinology, Metabolism, and Nutrition, Department of MedicineDuke University Medical CenterDurhamNCUSA
| | - Christopher B Newgard
- Sarah W. Stedman Nutrition and Metabolism Center, Duke Molecular Physiology InstituteDuke University Medical CenterDurhamNCUSA
- Division of Endocrinology, Metabolism, and Nutrition, Department of MedicineDuke University Medical CenterDurhamNCUSA
| | - Michael J Muehlbauer
- Sarah W. Stedman Nutrition and Metabolism Center, Duke Molecular Physiology InstituteDuke University Medical CenterDurhamNCUSA
| | - Cam Patterson
- Presbyterian Hospital/Weill‐Cornell Medical CenterNew YorkNYUSA
| | - Gary L Johnson
- Department of PharmacologyUniversity of North CarolinaChapel HillNCUSA
| | - Monte S Willis
- McAllister Heart InstituteUniversity of North CarolinaChapel HillNCUSA
- Department of Pathology & Laboratory MedicineUniversity of North CarolinaChapel HillNCUSA
- Department of PharmacologyUniversity of North CarolinaChapel HillNCUSA
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Protective effects of taurine on doxorubicin-induced acute hepatotoxicity through suppression of oxidative stress and apoptotic responses. Anticancer Drugs 2016; 27:17-23. [DOI: 10.1097/cad.0000000000000299] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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12
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Wang Y, Mei X, Yuan J, Lu W, Li B, Xu D. Taurine zinc solid dispersions attenuate doxorubicin-induced hepatotoxicity and cardiotoxicity in rats. Toxicol Appl Pharmacol 2015; 289:1-11. [PMID: 26335259 DOI: 10.1016/j.taap.2015.08.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 07/29/2015] [Accepted: 08/24/2015] [Indexed: 12/17/2022]
Abstract
The clinical efficacy of anthracycline anti-neoplastic agents is limited by cardiac and hepatic toxicities. The aim of this study was to assess the hepatoprotective and cardioprotective effects of taurine zinc solid dispersions, which is a newly-synthesized taurine zinc compound, against doxorubicin-induced toxicity in Sprague-Dawley rats intraperitoneally injected with doxorubicin hydrochloride (3mg/kg) three times a week (seven injections) over 28 days. Hemodynamic parameters, levels of liver toxicity markers and oxidative stress were assessed. Taurine zinc significantly attenuated the reductions in blood pressure, left ventricular pressure and ± dp/dtmax, increases in serum alanine aminotransferase and aspartate aminotransferase activities, and reductions in serum Zn(2+) and albumin levels (P<0.05 or 0.01) induced by doxorubicin. In rats treated with doxorubicin, taurine zinc dose-dependently increased liver superoxide dismutase activity and glutathione concentration, and decreased malondialdehyde level (P<0.01). qBase(+) was used to evaluate the stability of eight candidate reference genes for real-time quantitative reverse-transcription PCR. Taurine zinc dose-dependently increased liver heme oxygenase-1 and UDP-glucuronyl transferase mRNA and protein expression (P<0.01). Western blotting demonstrated that taurine zinc inhibited c-Jun N-terminal kinase phosphorylation by upregulating dual-specificity phosphoprotein phosphatase-1. Additionally, taurine zinc inhibited cardiomyocyte apoptosis as there was decreased TUNEL/DAPI positivity and protein expression of caspase-3. These results indicate that taurine zinc solid dispersions prevent the side-effects of anthracycline-based anticancer therapy. The mechanisms might be associated with the enhancement of antioxidant defense system partly through activating transcription to synthesize endogenous phase II medicine enzymes and anti-apoptosis through inhibiting JNK phosphorylation.
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Affiliation(s)
- Yu Wang
- Lab of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Xueting Mei
- Lab of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Jingquan Yuan
- Lab of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Wenping Lu
- Lab of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Binglong Li
- Lab of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Donghui Xu
- Lab of Traditional Chinese Medicine and Marine Drugs, Department of Biochemistry, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong, China.
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Abstract
The amino acids histidine and n-acetylcysteine have many biological activities such as antioxidant effect. The present study investigated the effects of histidine and n-acetylcysteine on the heart lesions induced by doxorubicin (DOX) in rats. Forty-eight male Wistar rats were divided into two major groups treated intraperitoneally (i.p.) with normal saline and 4 mg/kg of DOX, respectively. Each group was further divided into four subgroups that were treated with separate and combined i.p. injections of histidine and n-acetylcysteine (NAC) at a same dose of 40 mg/kg. Electrocardiography (ECG) was recorded using lead II. The heart lesions were evaluated by light microscopy. Serum levels of creatine phosphokinase and lactate dehydrogenase and heart tissue malondialdehyde levels were measured. Histidine and especially NAC at a same dose of 40 mg/kg recovered ECG changes, improved heart lesions and prevented biochemical changes induced by DOX. Co-administration of histidine and NAC showed better responses when compared with them used alone. The results of the present study showed protective effects for histidine and NAC on the heart. Reduction in free radical-induced toxic effects may be involved in cardioprotective properties of histidine and NAC.
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Karjalainen HM, Qu C, Leskelä SS, Rilla K, Lammi MJ. Chondrocytic cells express the taurine transporter on their plasma membrane and regulate its expression under anisotonic conditions. Amino Acids 2014; 47:561-70. [PMID: 25501278 DOI: 10.1007/s00726-014-1888-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 12/01/2014] [Indexed: 10/24/2022]
Abstract
Taurine is a small organic osmolyte which participates in cell volume regulation. Chondrocytes have been shown to accumulate and release taurine; in bone, taurine participates in bone metabolism. However, its role in skeletal cells is poorly understood, especially in chondrocytes. This study investigated the regulation of taurine transporter in chondrocytic cells. We examined the transcriptional regulation of the taurine transporter under anisotonia by reporter gene and real-time RT-PCR assays. The effect of providing supplementary taurine on cell viability was evaluated with the lactate dehydrogenase release assay. The localization of the taurine transporter in human chondrosarcoma cells was studied by overexpressing a taurine transporter-enhanced green fluorescent protein. We observed that the transcription of the taurine transporter gene was up-regulated in hypertonic conditions. Hyperosmolarity-related cell death could be partly abolished by taurine supplementation in the medium. As expected, the fluorescently labeled taurine transporter localized at the plasma membrane. In polarized epithelial MDCK cells, the strongest fluorescence signal was located in the lateral cell membrane area. We also observed that the taurine transporter gene was expressed in several human tissues and malignant cell lines. This is the first study to present information on the transcriptional regulation of taurine transporter gene and the localization of the taurine transporter protein in chondrocytic cells.
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Affiliation(s)
- Hannu M Karjalainen
- School of Medicine, Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland,
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15
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Park S, Yoon J, Bae S, Park M, Kang C, Ke Q, Lee D, Kang PM. Therapeutic use of H2O2-responsive anti-oxidant polymer nanoparticles for doxorubicin-induced cardiomyopathy. Biomaterials 2014; 35:5944-53. [PMID: 24767791 DOI: 10.1016/j.biomaterials.2014.03.084] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Accepted: 03/28/2014] [Indexed: 11/15/2022]
Abstract
Doxorubicin (DOX) is a commonly used anti-neoplastic agent but its clinical use is limited due to serious hepatic and cardiac side effects. DOX-induced toxicity is mainly associated with overproduction of reactive species oxygen (ROS) such as hydrogen peroxide (H2O2). We have recently developed H2O2-responsive anti-oxidant polymer, polyoxalate containing vanillyl alcohol (PVAX), which is designed to rapidly scavenge H2O2 and release vanillyl alcohol with anti-oxidant, anti-inflammatory and anti-apoptotic properties. In this study, we report that PVAX nanoparticles are novel therapeutic agents for treating DOX-induced cardiac and hepatic toxicity. Intraperitoneal injection of PVAX nanoparticles (4 mg/kg/day) resulted in significant inhibition in apoptosis in liver and heart of DOX-treated mice by suppressing the activation of poly (ADP ribose) polymerase 1 (PARP-1) and caspase-3. PVAX treatment also prevented DOX-induced cardiac dysfunction. Furthermore, survival rate (vehicle = 35% vs. PVAX = 75%; p < 0.05) was significantly improved in a PVAX nanoparticles-treated group compared with vehicle treated groups. Taken together, we anticipate that PVAX nanoparticles could be a highly specific and potent treatment modality in DOX-induced cardiac and hepatic toxicity.
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Affiliation(s)
- Seunggyu Park
- Department of BIN Fusion Technology, Chonbuk National University, Dukjin 664-14, Jeonju, Chonbuk 561-756, South Korea
| | - Jooheung Yoon
- Cardiovascular Institute, Beth Israel Deaconess Medical Center and Harvard Medical School, 3 Blackfan Circle, Boston, MA 02215, USA
| | - Soochan Bae
- Cardiovascular Institute, Beth Israel Deaconess Medical Center and Harvard Medical School, 3 Blackfan Circle, Boston, MA 02215, USA
| | - Minhyung Park
- Department of BIN Fusion Technology, Chonbuk National University, Dukjin 664-14, Jeonju, Chonbuk 561-756, South Korea
| | - Changsun Kang
- Department of BIN Fusion Technology, Chonbuk National University, Dukjin 664-14, Jeonju, Chonbuk 561-756, South Korea
| | - Qingen Ke
- Cardiovascular Institute, Beth Israel Deaconess Medical Center and Harvard Medical School, 3 Blackfan Circle, Boston, MA 02215, USA
| | - Dongwon Lee
- Department of BIN Fusion Technology, Chonbuk National University, Dukjin 664-14, Jeonju, Chonbuk 561-756, South Korea; Polymer Fusion Research Center, Department of Polymer⋅Nano Science and Technology, Chonbuk National University, Dukjin 664-14, Jeonju, Chonbuk 561-756, South Korea.
| | - Peter M Kang
- Department of BIN Fusion Technology, Chonbuk National University, Dukjin 664-14, Jeonju, Chonbuk 561-756, South Korea; Cardiovascular Institute, Beth Israel Deaconess Medical Center and Harvard Medical School, 3 Blackfan Circle, Boston, MA 02215, USA.
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16
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Das J, Roy A, Sil PC. Mechanism of the protective action of taurine in toxin and drug induced organ pathophysiology and diabetic complications: a review. Food Funct 2013; 3:1251-64. [PMID: 22930035 DOI: 10.1039/c2fo30117b] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Taurine (2-aminoethanesulfonic acid), a conditionally essential amino acid, is found in large concentrations in all mammalian tissues and is particularly abundant in aquatic foods. Taurine exhibits membrane stabilizing, osmoregulatory and cytoprotective effects, antioxidative properties, regulates intracellular Ca(2+) concentration, modulates ion movement and neurotransmitters, reduce the levels of pro-inflammatory cytokines in various organs and controls blood pressure. Recently, emerging evidence from the literature shows the effectiveness of taurine as a protective agent against several environmental toxins and drug-induced multiple organ injuries as the outcome of hepatotoxicity, nephrotoxicity, neurotoxicity, testicular toxicity and cardiotoxicity in several animal models. Besides, taurine is also effective in combating diabetes and its associated complications, including cardiomyopathy, nephropathy, neuropathy, retinopathy and atherosclerosis. These beneficial effects appear to be due to the multiple actions of taurine on cellular functions. This review summarizes the mechanism of the prophylactic role of taurine against several environmental toxins and drug-induced organ pathophysiology and diabetes.
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Affiliation(s)
- Joydeep Das
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata-700054, India
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Sontag DP, Wang J, Kardami E, Cattini PA. FGF-2 and FGF-16 Protect Isolated Perfused Mouse Hearts from Acute Doxorubicin-Induced Contractile Dysfunction. Cardiovasc Toxicol 2013; 13:244-53. [DOI: 10.1007/s12012-013-9203-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Taurine Enhances Anticancer Activity of Cisplatin in Human Cervical Cancer Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2013; 776:189-98. [DOI: 10.1007/978-1-4614-6093-0_19] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Shi Y, Moon M, Dawood S, McManus B, Liu PP. Mechanisms and management of doxorubicin cardiotoxicity. Herz 2012; 36:296-305. [PMID: 21656050 DOI: 10.1007/s00059-011-3470-3] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Doxorubicin is an effective anti-tumor agent with a cumulative dose-dependent cardiotoxicity. In addition to its principal toxic mechanisms involving iron and redox reactions, recent studies have described new mechanisms of doxorubicin-induced cell death, including abnormal protein processing, hyper-activated innate immune responses, inhibition of neuregulin-1 (NRG1)/ErbB(HER) signalling, impaired progenitor cell renewal/cardiac repair, and decreased vasculogenesis. Although multiple mechanisms involved in doxorubicin cardiotoxicity have been studied, there is presently no clinically proven treatment established for doxorubicin cardiomyopathy. Iron chelator dexrazoxane, angiotensin converting enzyme (ACE) inhibitors, and β-blockade have been proposed as potential preventive strategies for doxorubicin cardiotoxicity. Novel approaches such as anti-miR-146 or recombinant NRG1 to increase cardiomyocyte resistance to toxicity may be of interest in the future.
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Affiliation(s)
- Y Shi
- Division of Cardiology, Heart and Stroke/Richard Lewar Centre of Excellence, University Health Network, University of Toronto, Toronto General Hospital, Ontario, Canada
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20
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Christophersen OA. Radiation protection following nuclear power accidents: a survey of putative mechanisms involved in the radioprotective actions of taurine during and after radiation exposure. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2012; 23:14787. [PMID: 23990836 PMCID: PMC3747764 DOI: 10.3402/mehd.v23i0.14787] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 12/28/2022]
Abstract
There are several animal experiments showing that high doses of ionizing radiation lead to strongly enhanced leakage of taurine from damaged cells into the extracellular fluid, followed by enhanced urinary excretion. This radiation-induced taurine depletion can itself have various harmful effects (as will also be the case when taurine depletion is due to other causes, such as alcohol abuse or cancer therapy with cytotoxic drugs), but taurine supplementation has been shown to have radioprotective effects apparently going beyond what might be expected just as a consequence of correcting the harmful consequences of taurine deficiency per se. The mechanisms accounting for the radioprotective effects of taurine are, however, very incompletely understood. In this article an attempt is made to survey various mechanisms that potentially might be involved as parts of the explanation for the overall beneficial effect of high levels of taurine that has been found in experiments with animals or isolated cells exposed to high doses of ionizing radiation. It is proposed that taurine may have radioprotective effects by a combination of several mechanisms: (1) during the exposure to ionizing radiation by functioning as an antioxidant, but perhaps more because it counteracts the prooxidant catalytic effect of iron rather than functioning as an important scavenger of harmful molecules itself, (2) after the ionizing radiation exposure by helping to reduce the intensity of the post-traumatic inflammatory response, and thus reducing the extent of tissue damage that develops because of severe inflammation rather than as a direct effect of the ionizing radiation per se, (3) by functioning as a growth factor helping to enhance the growth rate of leukocytes and leukocyte progenitor cells and perhaps also of other rapidly proliferating cell types, such as enterocyte progenitor cells, which may be important for immunological recovery and perhaps also for rapid repair of various damaged tissues, especially in the intestines, and (4) by functioning as an antifibrogenic agent. A detailed discussion is given of possible mechanisms involved both in the antioxidant effects of taurine, in its anti-inflammatory effects and in its role as a growth factor for leukocytes and nerve cells, which might be closely related to its role as an osmolyte important for cellular volume regulation because of the close connection between cell volume regulation and the regulation of protein synthesis as well as cellular protein degradation. While taurine supplementation alone would be expected to exert a therapeutic effect far better than negligible in patients that have been exposed to high doses of ionizing radiation, it may on theoretical grounds be expected that much better results may be obtained by using taurine as part of a multifactorial treatment strategy, where it may interact synergistically with several other nutrients, hormones or other drugs for optimizing antioxidant protection and minimizing harmful posttraumatic inflammatory reactions, while using other nutrients to optimize DNA and tissue repair processes, and using a combination of good diet, immunostimulatory hormones and perhaps other nontoxic immunostimulants (such as beta-glucans) for optimizing the recovery of antiviral and antibacterial immune functions. Similar multifactorial treatment strategies may presumably be helpful in several other disease situations (including severe infectious diseases and severe asthma) as well as for treatment of acute intoxications or acute injuries (both mechanical ones and severe burns) where severely enhanced oxidative and/or nitrative stress and/or too much secretion of vasodilatory neuropeptides from C-fibres are important parts of the pathogenetic mechanisms that may lead to the death of the patient. Some case histories (with discussion of some of those mechanisms that may have been responsible for the observed therapeutic outcome) are given for illustration of the likely validity of these concepts and their relevance both for treatment of severe infections and non-infectious inflammatory diseases such as asthma and rheumatoid arthritis.
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Upadhyay KK, Mishra AK, Chuttani K, Kaul A, Schatz C, Le Meins JF, Misra A, Lecommandoux S. The in vivo behavior and antitumor activity of doxorubicin-loaded poly(γ-benzyl l-glutamate)-block-hyaluronan polymersomes in Ehrlich ascites tumor-bearing BalB/c mice. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2012; 8:71-80. [DOI: 10.1016/j.nano.2011.05.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Revised: 03/29/2011] [Accepted: 05/18/2011] [Indexed: 02/02/2023]
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Li G, Tang T, Peng M, He H, Yin D. Direct reaction of taurine with malondialdehyde: evidence for taurine as a scavenger of reactive carbonyl species. Redox Rep 2011; 15:268-74. [PMID: 21208526 DOI: 10.1179/135100010x12826446921743] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Though taurine has been reported very useful in preventing oxidative stress and various age-related diseases, the detailed biochemical mechanism of its biological functions is not well understood. Direct reaction of malondialdehyde (MDA) with taurine was studied using spectrofluorometry, spectrophotometry and liquid chromatography online with mass spectrometry (LC/MS). The results indicated that taurine reacted readily with MDA at supraphysiological conditions to yield mainly two products: a fluorescent 1,4-dihydropyridine and non-fluorescent enaminal derivatives. Taurine also significantly inhibited the formation of lipofuscin-like fluorescence induced by MDA-modified bovine serum albumin. These findings suggested that taurine effectively reduces carbonyl stress due to the amino group in its molecular structure, and we propose that it should be the mechanism related with the pathophysiological functions of taurine in the biological system.
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Affiliation(s)
- Guolin Li
- The Key Laboratory of Protein Chemistry and Developmental Biology of Ministry of Education, College of Life Sciences, Hunan Normal University, Changsha, Hunan, P.R. China
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23
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Das J, Ghosh J, Manna P, Sil PC. Taurine suppresses doxorubicin-triggered oxidative stress and cardiac apoptosis in rat via up-regulation of PI3-K/Akt and inhibition of p53, p38-JNK. Biochem Pharmacol 2011; 81:891-909. [PMID: 21295553 DOI: 10.1016/j.bcp.2011.01.008] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 12/21/2010] [Accepted: 01/18/2011] [Indexed: 12/16/2022]
Abstract
The objective of the present study was to investigate the signaling mechanisms involved in the beneficial role of taurine against doxorubicin-induced cardiac oxidative stress. Male rats were administered doxorubicin. Hearts were collected 3 weeks after the last dose of doxorubicin and were analyzed. Doxorubicin administration retarded the growth of the body and the heart and caused injury in the cardiac tissue because of increased oxidative stress. Similar experiments with doxorubicin showed reduced cell viability, increased ROS generation, intracellular Ca(2+) and DNA fragmentation, disrupted mitochondrial membrane potential and apoptotic cell death in primary cultured neonatal rat cardiomyocytes. Signal transduction studies showed that doxorubicin increased p53, JNK, p38 and NFκB phosphorylation; decreased the levels of phospho ERK and Akt; disturbed the Bcl-2 family protein balance; activated caspase 12, caspase 9 and caspase 3; and induced cleavage of the PARP protein. However, taurine treatment or cardiomyocyte incubation with taurine suppressed all of the adverse effects of doxorubicin. Studies with several inhibitors, including PS-1145 (an IKK inhibitor), SP600125 (a JNK inhibitor), SB203580 (a p38 inhibitor) and LY294002 (a PI3-K/Akt inhibitor), demonstrated that the mechanism of taurine-induced cardio protection involves activation of specific survival signals and PI3-K/Akt as well as the inhibition of p53, JNK, p38 and NFκB. These novel findings suggest that taurine might have clinical implications for the prevention of doxorubicin-induced cardiac oxidative stress.
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Affiliation(s)
- Joydeep Das
- Division of Molecular Medicine, Bose Institute, Kolkata, West Bengal, India
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24
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Abstract
PURPOSE OF REVIEW The shift of modern dietary regimens from 'Mediterranean' to 'western' style is believed to be responsible, in part, for the increase in cardiovascular disease, obesity, type II diabetes and cancer. A classic 'Mediterranean' diet consists of adequate intake of seafood, vegetables, fruit, whole grain and nonpurified monounsaturated vegetable oil. Thus, in humans, dietary intake of seafood is the major source of taurine, as the level of endogenously produced taurine is low. RECENT FINDINGS Taurine has been shown to affect coronary artery disease, blood pressure, plasma cholesterol and myocardial function in animal models of human disease. A major role of taurine is to act as an antioxidant and absorb hypochlorous acid but not the oxidative radical. It seems that this beneficial effect of taurine in antioxidant therapy has not been well promoted. SUMMARY This review will focus on determining whether taurine could be a factor contributing to the further prevention of heart disease.
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Affiliation(s)
- Anthony Zulli
- School of Biomedical and Health Science, Victoria University, St Albans, Victoria, Australia.
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25
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Strauss M, Rada A, Tejero F, Hermoso T. Heat stress in rat adriamycin cardiomyopathy: heat shock protein 25 and Myosin accumulation. J Toxicol Pathol 2010; 23:235-43. [PMID: 22272033 PMCID: PMC3234633 DOI: 10.1293/tox.23.235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Accepted: 09/06/2010] [Indexed: 12/02/2022] Open
Abstract
In order to evaluate the effects of hyperthermia on adriamycin cardiomyopathy and
its relationship with heat shock protein induction and myosin accumulation,
female Sprague-Dawley rats (21–24 days) were randomized into four groups: the
control, adriamycin, temperature and temperature-adriamycin groups. Adriamycin
was injected i.v. at a dose of 27 mg/Kg (0.1 ml). The rats were exposed to a
temperature of 45ºC for 35 min, followed by a recovery (1 h) at room temperature
prior to adriamycin treatment. Body weight was recorded weekly. The thickness of
the ventricular wall and percentage of cellular damage were biometrically and
ultrastructurally evaluated, respectively. Heat shock protein 25 and myosin
accumulation were determined through Western blot analysis. The determinations
were carried out monthly until the third month after treatment. At eight and
twelve weeks after treatment, the thickness of the ventricular wall seemed to
decrease in the adriamycin-treated rats in relation to the other groups. An
electron microscopic analysis of the adriamycin group’s left ventricular wall
samples, showed more sarcomeric changes and loss of myofibrils than the control,
temperature and temperature-adriamycin groups. At 24 hours after treatment with
adriamycin, higher levels of heat shock protein 25 and myosin were observed
(week 0) in the temperature-adriamycin group than in the control and adriamycin
groups (4, 8 and 12 weeks). Hyperthermia was confirmed by a multivariate
approach to induce heat shock protein 25 and myosin, which would strengthen
cardiac-sarcomeric myosin arrangement.
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Affiliation(s)
- Mirian Strauss
- Sección de Biología Celular, Instituto de Medicina
Tropical, Facultad de Medicina Universidad Central de Venezuela, Caracas 1041A,
Venezuela
| | - Alegna Rada
- Sección de Biología Celular, Instituto de Medicina
Tropical, Facultad de Medicina Universidad Central de Venezuela, Caracas 1041A,
Venezuela
| | - Félix Tejero
- Instituto de Zoología y Ecología Tropical, Facultad
de Ciencias. Universidad Central de Venezuela, Caracas 1041A, Venezuela
| | - Tomás Hermoso
- Sección de Bioquímica de Parásitos, Instituto de
Medicina Tropical, Facultad de Medicina, Universidad Central de Venezuela,
Caracas 1041A, Venezuela
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Schaffer SW, Jong CJ, Ramila KC, Azuma J. Physiological roles of taurine in heart and muscle. J Biomed Sci 2010; 17 Suppl 1:S2. [PMID: 20804594 PMCID: PMC2994395 DOI: 10.1186/1423-0127-17-s1-s2] [Citation(s) in RCA: 216] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Taurine (aminoethane sulfonic acid) is an ubiquitous compound, found in very high concentrations in heart and muscle. Although taurine is classified as an amino acid, it does not participate in peptide bond formation. Nonetheless, the amino group of taurine is involved in a number of important conjugation reactions as well as in the scavenging of hypochlorous acid. Because taurine is a fairly inert compound, it is an ideal modulator of basic processes, such as osmotic pressure, cation homeostasis, enzyme activity, receptor regulation, cell development and cell signalling. The present review discusses several physiological functions of taurine. First, the observation that taurine depletion leads to the development of a cardiomyopathy indicates a role for taurine in the maintenance of normal contractile function. Evidence is provided that this function of taurine is mediated by changes in the activity of key Ca2+ transporters and the modulation Ca2+ sensitivity of the myofibrils. Second, in some species, taurine is an established osmoregulator, however, in mammalian heart the osmoregulatory function of taurine has recently been questioned. Third, taurine functions as an indirect regulator of oxidative stress. Although this action of taurine has been widely discussed, its mechanism of action is unclear. A potential mechanism for the antioxidant activity of taurine is discussed. Fourth, taurine stabilizes membranes through direct interactions with phospholipids. However, its inhibition of the enzyme, phospholipid N-methyltransferase, alters the phosphatidylcholine and phosphatidylethanolamine content of membranes, which in turn affects the function of key proteins within the membrane. Finally, taurine serves as a modulator of protein kinases and phosphatases within the cardiomyocyte. The mechanism of this action has not been studied. Taurine is a chemically simple compound, but it has profound effects on cells. This has led to the suggestion that taurine is an essential or semi-essential nutrient for many mammals.
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Affiliation(s)
- Stephen W Schaffer
- Department of Pharmacology, University of South Alabama, College of Medicine, Mobile, Alabama 36688, USA.
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Acharya M, Lau-Cam CA. Comparison of the protective actions of N-acetylcysteine, hypotaurine and taurine against acetaminophen-induced hepatotoxicity in the rat. J Biomed Sci 2010; 17 Suppl 1:S35. [PMID: 20804611 PMCID: PMC2994383 DOI: 10.1186/1423-0127-17-s1-s35] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
When used in overdoses, acetaminophen (APAP) is a common cause of morbidity and mortality in humans. At present, N-acetylcysteine (NAC) is the antidote of choice for acetaminophen overdoses. Prompt administration of NAC can prevent the deleterious actions of APAP in the liver. In view of the similarities in antioxidant effects demonstrated by NAC, hypotaurine (HYTAU) and taurine (TAU) in this and other our laboratories, the present study was undertaken to compare these compounds for the ability to attenuate plasma and liver biochemical changes associated with a toxic dose of APAP. For this purpose, fasted male Sprague-Dawley rats, 225-250 g in weight, were intraperitoneally treated with APAP (800 mg/kg), NAC, HYTAU or TAU (2.4 mM/kg) followed 30 min later by APAP, or 50% PEG 400 (the vehicle for APAP). At 6 hr after APAP administration, all animals were sacrificed by decapitation and their blood and livers collected. The plasma fractions were analyzed for indices of liver damage (alanine transaminase, aspartate transaminase, lactate dehydrogenase), levels of malondialdehyde (MDA), reduced (GSH) and oxidized (GSSG) glutathione, and activities of glutathione reductase (GR), glutathione S-transferase (GST) and gamma-glutamylcisteinyl synthetase (GCS). Suitable liver homogenates were analyzed for the same biochemical parameters as the plasma but indices of liver damage. By itself, APAP increased MDA formation and had a significant lowering influence on the levels of GSH and GSSG, the GSH/GSSH ratio, and the activities of GR, GST and GCS both in the plasma and liver. In addition, APAP promoted the leakage of transaminases and lactate dehydrogenase from the liver into the plasma. Without exceptions, a pretreatment with a sulfur-containing compound led to a significant attenuation of the liver injury and the biochemical changes induced by APAP. Within a narrow range of potency differences, HYTAU appeared to be the most protective and TAU the least. The present results suggest that, irrespective of the differences in structural features and in vitro antioxidant properties that may exist among NAC, TAU and HYTAU, these compounds demonstrate equivalent patterns of protection and, to a certain extent, equipotent protective actions against the toxic actions of APAP in the liver when tested in equimolar doses and under the same conditions in an animal model.
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Affiliation(s)
- Miteshkumar Acharya
- Department of Pharmaceutical Sciences, St, John's University, College of Pharmacy and Allied Health Professions, 8000 Utopia Parkway, Jamaica, New York 11439, USA.
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Jung R, Wendeler MW, Danevad M, Himmelbauer H, Geßner R. Phylogenetic origin of LI-cadherin revealed by protein and gene structure analysis. Cell Mol Life Sci 2004; 61:1157-66. [PMID: 15141301 PMCID: PMC11138757 DOI: 10.1007/s00018-004-3470-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The intestine specific LI-cadherin differs in its overall structure from classical and desmosomal cadherins by the presence of seven instead of five cadherin repeats and a short cytoplasmic domain. Despite the low sequence similarity, a comparative protein structure analysis revealed that LI-cadherin may have originated from a five-repeat predecessor cadherin by a duplication of the first two aminoterminal repeats. To test this hypothesis, we cloned the murine LI-cadherin gene and compared its structure to that of other cadherins. The intron-exon organization, including the intron positions and phases, is perfectly conserved between repeats 3-7 of LI-cadherin and 1-5 of classical cadherins. Moreover, the genomic structure of the repeats 1-2 and 3-4 is identical for LI-cadherin and highly similar to that of the repeats 1-2 of classical cadherins. These findings strengthen our assumption that LI-cadherin originated from an ancestral cadherin with five domains by a partial gene duplication event.
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Affiliation(s)
- R. Jung
- Institute of Laboratory Medicine and Biochemistry, Virchow-Hospital of Charité Medical School, Humboldt University of Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
- Schering AG, Müllerstr. 178, 13342 Berlin, Germany
| | - M. W. Wendeler
- Institute of Laboratory Medicine and Biochemistry, Virchow-Hospital of Charité Medical School, Humboldt University of Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - M. Danevad
- Institute of Laboratory Medicine and Biochemistry, Virchow-Hospital of Charité Medical School, Humboldt University of Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - H. Himmelbauer
- Max-Planck-Institute of Molecular Genetics, Ihnestr. 73, 14195 Berlin, Germany
| | - R. Geßner
- Institute of Laboratory Medicine and Biochemistry, Virchow-Hospital of Charité Medical School, Humboldt University of Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
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