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Sarubbo F, Esteban S, Miralles A, Moranta D. Effects of Resveratrol and other Polyphenols on Sirt1: Relevance to Brain Function During Aging. Curr Neuropharmacol 2018; 16:126-136. [PMID: 28676015 PMCID: PMC5883375 DOI: 10.2174/1570159x15666170703113212] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 04/15/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Classically the oxidative stress and more recently inflammatory processes have been identified as the major causes of brain aging. Oxidative stress and inflammation affect each other, but there is more information about the effects of oxidative stress on aging than regarding the contribution of inflammation on it. METHODS In the intense research for methods to delay or mitigate the effects of aging, are interesting polyphenols, natural molecules synthesized by plants (e.g. resveratrol). Their antioxidant and anti-inflammatory properties make them useful molecules in the prevention of aging. RESULTS The antiaging effects of polyphenols could be due to several related mechanisms, among which are the prevention of oxidative stress, SIRT1 activation and inflammaging modulation, via regulation of some signaling pathways, such as NF-κB. CONCLUSION In this review, we describe the positive effects of polyphenols on the prevention of the changes that occur during aging in the brain and their consequences on cognition, emphasizing the possible modulation of inflammaging by polyphenols through a SIRT1-mediated mechanism.
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Affiliation(s)
- F. Sarubbo
- Laboratorio de Neurofisiología, Departamento de Biología, Instituto Universitario de Investigación en Ciencias de la Salud, Universidad de las Islas Baleares (UIB), Mallorca, Spain
| | - S. Esteban
- Laboratorio de Neurofisiología, Departamento de Biología, Instituto Universitario de Investigación en Ciencias de la Salud, Universidad de las Islas Baleares (UIB), Mallorca, Spain
| | - A. Miralles
- Laboratorio de Neurofisiología, Departamento de Biología, Instituto Universitario de Investigación en Ciencias de la Salud, Universidad de las Islas Baleares (UIB), Mallorca, Spain
| | - D. Moranta
- Laboratorio de Neurofisiología, Departamento de Biología, Instituto Universitario de Investigación en Ciencias de la Salud, Universidad de las Islas Baleares (UIB), Mallorca, Spain
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Fuentes J, Atala E, Pastene E, Carrasco-Pozo C, Speisky H. Quercetin Oxidation Paradoxically Enhances its Antioxidant and Cytoprotective Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11002-11010. [PMID: 29179550 DOI: 10.1021/acs.jafc.7b05214] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Quercetin oxidation is generally believed to ultimately result in the loss of its antioxidant properties. To test this assertion, quercetin oxidation was induced, and after each of its major metabolites was identified and isolated by HPLC-DAD-ESI-MS/MS, the antioxidant (dichlorodihydrofluorescein oxidation-inhibiting) and cytoprotective (LDH leakage-preventing) properties were evaluated in Hs68 and Caco2 cells exposed to indomethacin. Compared to quercetin, the whole mixture of metabolites (QOX) displayed a 20-fold greater potency. After resolution of QOX into 12 major peaks, only one (peak 8), identified as 2,5,7,3',4'-pentahydroxy-3,4-flavandione or its 2-(3,4-dihydroxybenzoyl)-2,4,6-trihydroxy-3(2H)-benzofuranone tautomer, could account for the antioxidant and cytoprotective effects afforded QOX. Peak 8 exerted such effects at a 50 nM concentration, revealing a potency 200-fold higher than that of quercetin. The effects of peak 8 were seen regardless of whether it was added to the cells 40 min before or simultaneously with the oxygen-reactive species-generating agent, suggesting an intracellular ability to trigger early antioxidant responses. Thus, the present study is the first to reveal that in regard to the intracellular actions of quercetin, attention should be extended toward some of its oxidation products.
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Affiliation(s)
- Jocelyn Fuentes
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile , Santiago, Chile
| | - Elías Atala
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile , Santiago, Chile
| | - Edgar Pastene
- Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Concepcion , Concepcion, Chile
| | - Catalina Carrasco-Pozo
- Nutrition Department, Faculty of Medicine, University of Chile , Santiago, Chile
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University , Nathan, Queensland 4111, Australia
| | - Hernán Speisky
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile , Santiago, Chile
- Pharmacology Department, Faculty of Chemical and Pharmaceutical Sciences, University of Chile , Santiago, Chile
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153
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Ahmad Z, Hassan SS, Azim S. A Therapeutic Connection between Dietary Phytochemicals and ATP Synthase. Curr Med Chem 2017; 24:3894-3906. [PMID: 28831918 PMCID: PMC5738703 DOI: 10.2174/0929867324666170823125330] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 01/01/1970] [Accepted: 08/18/2017] [Indexed: 12/25/2022]
Abstract
For centuries, phytochemicals have been used to prevent and cure multiple health ailments. Phytochemicals have been reported to have antioxidant, antidiabetic, antitussive, antiparasitic, anticancer, and antimicrobial properties. Generally, the therapeutic use of phy-tochemicals is based on tradition or word of mouth with few evidence-based studies. Moreo-ver, molecular level interactions or molecular targets for the majority of phytochemicals are unknown. In recent years, antibiotic resistance by microbes has become a major healthcare concern. As such, the use of phytochemicals with antimicrobial properties has become perti-nent. Natural compounds from plants, vegetables, herbs, and spices with strong antimicrobial properties present an excellent opportunity for preventing and combating antibiotic resistant microbial infections. ATP synthase is the fundamental means of cellular energy. Inhibition of ATP synthase may deprive cells of required energy leading to cell death, and a variety of die-tary phytochemicals are known to inhibit ATP synthase. Structural modifications of phyto-chemicals have been shown to increase the inhibitory potency and extent of inhibition. Site-directed mutagenic analysis has elucidated the binding site(s) for some phytochemicals on ATP synthase. Amino acid variations in and around the phytochemical binding sites can re-sult in selective binding and inhibition of microbial ATP synthase. In this review, the therapeu-tic connection between dietary phytochemicals and ATP synthase is summarized based on the inhibition of ATP synthase by dietary phytochemicals. Research suggests selective target-ing of ATP synthase is a valuable alternative molecular level approach to combat antibiotic resistant microbial infections.
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Affiliation(s)
- Zulfiqar Ahmad
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, Missouri 63501, USA
| | - Sherif S Hassan
- Department of Medical Education, California University of Sciences and Medicine, School of Medicine (Cal Med-SOM), Colton, California 92324, USA
| | - Sofiya Azim
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, Missouri 63501, USA
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154
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Abstract
Mitochondria are essential organelles for many aspects of cellular homeostasis, including energy harvesting through oxidative phosphorylation. Alterations of mitochondrial function not only impact on cellular metabolism but also critically influence whole-body metabolism, health, and life span. Diseases defined by mitochondrial dysfunction have expanded from rare monogenic disorders in a strict sense to now also include many common polygenic diseases, including metabolic, cardiovascular, neurodegenerative, and neuromuscular diseases. This has led to an intensive search for new therapeutic and preventive strategies aimed at invigorating mitochondrial function by exploiting key components of mitochondrial biogenesis, redox metabolism, dynamics, mitophagy, and the mitochondrial unfolded protein response. As such, new findings linking mitochondrial function to the progression or outcome of this ever-increasing list of diseases has stimulated the discovery and development of the first true mitochondrial drugs, which are now entering the clinic and are discussed in this review.
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Affiliation(s)
- Vincenzo Sorrentino
- Laboratory of Integrative and Systems Physiology, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland;
| | - Keir J Menzies
- Interdisciplinary School of Health Sciences, University of Ottawa Brain and Mind Research Institute and Centre for Neuromuscular Disease, Ottawa K1H 8M5, Canada;
| | - Johan Auwerx
- Laboratory of Integrative and Systems Physiology, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland;
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155
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Baeeri M, Mohammadi-Nejad S, Rahimifard M, Navaei-Nigjeh M, Moeini-Nodeh S, Khorasani R, Abdollahi M. Molecular and biochemical evidence on the protective role of ellagic acid and silybin against oxidative stress-induced cellular aging. Mol Cell Biochem 2017; 441:21-33. [PMID: 28887692 DOI: 10.1007/s11010-017-3172-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 09/01/2017] [Indexed: 12/17/2022]
Abstract
Aging is a natural process in living organisms that is defined by some molecular and cellular changes with time. Various causes such as mitochondrial DNA aberrations, aggregation of proteins, telomere shortening, and oxidative stress have an influential role in aging of the cells. Natural antioxidants are compounds that are potent to protect the body from detrimental effects of molecules such as free radicals. The aim of this study was to evaluate the anti-aging properties of ellagic acid (EA) and silybin (SIL), as natural antioxidant compounds on rat embryonic fibroblast (REF) cells. These cells were pre-incubated with EA and SIL, thereafter were exposed to hydrogen peroxide (H2O2). Then, the cell viability, SA-β-GAL activity, distribution of cell cycle, NF-κB, and mitochondrial complex I, II/IV enzyme activity were measured. The results of this study revealed the protective effects of EA and SIL in H2O2-treated REF cells, which confirm the previous achieved data on antioxidant and anti-inflammatory characteristics of EA and SIL against H2O2 in the treated REF cells. However, more new in vivo experiments are required to discover the anti-aging effects and mechanism of action of such compounds.
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Affiliation(s)
- Maryam Baeeri
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Solmaz Mohammadi-Nejad
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahban Rahimifard
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Navaei-Nigjeh
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shermineh Moeini-Nodeh
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Khorasani
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,International Campus, Tehran University of Medical Sciences (TUMS-IC), Tehran, Iran. .,Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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156
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Fernández-Del-Río L, Nag A, Gutiérrez Casado E, Ariza J, Awad AM, Joseph AI, Kwon O, Verdin E, de Cabo R, Schneider C, Torres JZ, Burón MI, Clarke CF, Villalba JM. Kaempferol increases levels of coenzyme Q in kidney cells and serves as a biosynthetic ring precursor. Free Radic Biol Med 2017; 110:176-187. [PMID: 28603085 PMCID: PMC5539908 DOI: 10.1016/j.freeradbiomed.2017.06.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/29/2017] [Accepted: 06/06/2017] [Indexed: 12/27/2022]
Abstract
Coenzyme Q (Q) is a lipid-soluble antioxidant essential in cellular physiology. Patients with Q deficiencies, with few exceptions, seldom respond to treatment. Current therapies rely on dietary supplementation with Q10, but due to its highly lipophilic nature, Q10 is difficult to absorb by tissues and cells. Plant polyphenols, present in the human diet, are redox active and modulate numerous cellular pathways. In the present study, we tested whether treatment with polyphenols affected the content or biosynthesis of Q. Mouse kidney proximal tubule epithelial (Tkpts) cells and human embryonic kidney cells 293 (HEK 293) were treated with several types of polyphenols, and kaempferol produced the largest increase in Q levels. Experiments with stable isotope 13C-labeled kaempferol demonstrated a previously unrecognized role of kaempferol as an aromatic ring precursor in Q biosynthesis. Investigations of the structure-function relationship of related flavonols showed the importance of two hydroxyl groups, located at C3 of the C ring and C4' of the B ring, both present in kaempferol, as important determinants of kaempferol as a Q biosynthetic precursor. Concurrently, through a mechanism not related to the enhancement of Q biosynthesis, kaempferol also augmented mitochondrial localization of Sirt3. The role of kaempferol as a precursor that increases Q levels, combined with its ability to upregulate Sirt3, identify kaempferol as a potential candidate in the design of interventions aimed on increasing endogenous Q biosynthesis, particularly in kidney.
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Affiliation(s)
- Lucía Fernández-Del-Río
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain
| | - Anish Nag
- Department of Chemistry and Biochemistry and the Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - Elena Gutiérrez Casado
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain
| | - Julia Ariza
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain
| | - Agape M Awad
- Department of Chemistry and Biochemistry and the Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - Akil I Joseph
- Department of Pharmacology, and the Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical School, Nashville, TN, USA
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry and the Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - Eric Verdin
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Rafael de Cabo
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Claus Schneider
- Department of Pharmacology, and the Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical School, Nashville, TN, USA
| | - Jorge Z Torres
- Department of Chemistry and Biochemistry and the Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - María I Burón
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain
| | - Catherine F Clarke
- Department of Chemistry and Biochemistry and the Molecular Biology Institute, UCLA, Los Angeles, CA, USA
| | - José M Villalba
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, Spain
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157
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Zielonka J, Sikora A, Hardy M, Ouari O, Vasquez-Vivar J, Cheng G, Lopez M, Kalyanaraman B. Mitochondria-Targeted Triphenylphosphonium-Based Compounds: Syntheses, Mechanisms of Action, and Therapeutic and Diagnostic Applications. Chem Rev 2017; 117:10043-10120. [PMID: 28654243 PMCID: PMC5611849 DOI: 10.1021/acs.chemrev.7b00042] [Citation(s) in RCA: 921] [Impact Index Per Article: 131.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mitochondria are recognized as one of the most important targets for new drug design in cancer, cardiovascular, and neurological diseases. Currently, the most effective way to deliver drugs specifically to mitochondria is by covalent linking a lipophilic cation such as an alkyltriphenylphosphonium moiety to a pharmacophore of interest. Other delocalized lipophilic cations, such as rhodamine, natural and synthetic mitochondria-targeting peptides, and nanoparticle vehicles, have also been used for mitochondrial delivery of small molecules. Depending on the approach used, and the cell and mitochondrial membrane potentials, more than 1000-fold higher mitochondrial concentration can be achieved. Mitochondrial targeting has been developed to study mitochondrial physiology and dysfunction and the interaction between mitochondria and other subcellular organelles and for treatment of a variety of diseases such as neurodegeneration and cancer. In this Review, we discuss efforts to target small-molecule compounds to mitochondria for probing mitochondria function, as diagnostic tools and potential therapeutics. We describe the physicochemical basis for mitochondrial accumulation of lipophilic cations, synthetic chemistry strategies to target compounds to mitochondria, mitochondrial probes, and sensors, and examples of mitochondrial targeting of bioactive compounds. Finally, we review published attempts to apply mitochondria-targeted agents for the treatment of cancer and neurodegenerative diseases.
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Affiliation(s)
- Jacek Zielonka
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Adam Sikora
- Institute of Applied Radiation Chemistry, Lodz University of Technology, ul. Wroblewskiego 15, 93-590 Lodz, Poland
| | - Micael Hardy
- Aix Marseille Univ, CNRS, ICR, UMR 7273, 13013 Marseille, France
| | - Olivier Ouari
- Aix Marseille Univ, CNRS, ICR, UMR 7273, 13013 Marseille, France
| | - Jeannette Vasquez-Vivar
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Gang Cheng
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Marcos Lopez
- Translational Biomedical Research Group, Biotechnology Laboratories, Cardiovascular Foundation of Colombia, Carrera 5a No. 6-33, Floridablanca, Santander, Colombia, 681003
- Graduate Program of Biomedical Sciences, Faculty of Health, Universidad del Valle, Calle 4B No. 36-00, Cali, Colombia, 760032
| | - Balaraman Kalyanaraman
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
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158
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Frión-Herrera Y, Díaz-García A, Ruiz-Fuentes J, Rodríguez-Sánchez H, Maurício Sforcin J. Mechanisms underlying the cytotoxic effect of propolis on human laryngeal epidermoid carcinoma cells. Nat Prod Res 2017; 32:2085-2091. [PMID: 28783983 DOI: 10.1080/14786419.2017.1363749] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Propolis has been used as a traditional remedy for centuries because of its beneficial effects, including anticancer properties. The aim of this study was to compare the cytotoxic mechanism of Cuban red propolis (CP) and Brazilian green propolis (BP) on human laryngeal carcinoma (HEp-2) cells. Cell viability, leakage of lactate dehydrogenase, fluorescence staining, mitochondrial membrane potential (ΔΨm) and the expression of pro/anti-apoptotic genes were assessed. Cell viability and cytotoxic assays suggested a dose-dependent effect of CP and BP extracts with a possible association of intracellular reactive oxygen species production and decreased ΔΨm. Both samples induced apoptosis via activation of TP53, CASP3, BAX, P21 signalling, and downregulation of BCL2 and BCL-XL. CP exerted a higher cytotoxic effect than BP extract. Our findings suggest further investigation of the main components of each propolis sample, what may lead to the development of strategies for the treatment of laryngeal cancer.
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Affiliation(s)
- Yahima Frión-Herrera
- a Department of Microbiology and Immunology , Biosciences Institute, UNESP , Botucatu , Brazil
| | - Alexis Díaz-García
- b Laboratories of Biofarmaceuticals and Chemistries Productions (LABIOFAM) , Havana , Cuba
| | | | | | - José Maurício Sforcin
- a Department of Microbiology and Immunology , Biosciences Institute, UNESP , Botucatu , Brazil
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159
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Amini A, Liu M, Ahmad Z. Understanding the link between antimicrobial properties of dietary olive phenolics and bacterial ATP synthase. Int J Biol Macromol 2017; 101:153-164. [PMID: 28322962 PMCID: PMC5884633 DOI: 10.1016/j.ijbiomac.2017.03.087] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/16/2017] [Accepted: 03/16/2017] [Indexed: 11/24/2022]
Abstract
The naturally occurring olive phenolics tyrosol, hydroxytyrosol, dihydroxyphenylglycol (DHPG), and oleuropein are known to have antioxidant, antitumor, and antibacterial properties. In the current study, we examined whether the antimicrobial properties of tyrosol, hydroxytyrosol, DHPG, and oleuropein were linked to the inhibition of bacterial ATP synthase. Tyrosol, hydroxytyrosol, DHPG, and oleuropein inhibited Escherichia coli wild-type and mutant membrane-bound F1Fo ATP synthase to variable degrees. The growth properties of wild-type, null, and mutant strains in presence of above olive phenolics were also abrogated to variable degrees on limiting glucose and succinate. Tyrosol and oleuropein synergistically inhibited the wild-type enzyme. Comparative wild-type and mutant F1Fo ATP synthase inhibitory profiles suggested that αArg-283 is an important residue and olive phenolics bind at the polyphenol binding pocket of ATP synthase. Growth patterns of wild-type, null, and mutant strains in the presence of tyrosol, hydroxytyrosol, DHPG, and oleuropein also hint at the possibility of additional molecular targets. Our results demonstrated that ATP synthase can be used as a molecular target and the antimicrobial properties of olive phenolics in general and tyrosol in particular can be linked to the binding and inhibition of bacterial ATP synthase.
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Affiliation(s)
- Amon Amini
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, MO 63501, USA
| | - Mason Liu
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, MO 63501, USA
| | - Zulfiqar Ahmad
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, MO 63501, USA.
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160
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de Oliveira MR, de Bittencourt Brasil F, Fürstenau CR. Sulforaphane Promotes Mitochondrial Protection in SH-SY5Y Cells Exposed to Hydrogen Peroxide by an Nrf2-Dependent Mechanism. Mol Neurobiol 2017; 55:4777-4787. [PMID: 28730528 DOI: 10.1007/s12035-017-0684-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/07/2017] [Indexed: 12/20/2022]
Abstract
Sulforaphane (SFN; C6H11NOS2) is an isothiocyanate found in cruciferous vegetables, such as broccoli, kale, and radish. SFN exhibits antioxidant, anti-apoptotic, anti-tumor, and anti-inflammatory activities in different cell types. However, it was not previously demonstrated whether and how this natural compound would exert mitochondrial protection experimentally. Therefore, we investigated here the effects of a pretreatment (for 30 min) with SFN at 5 μM on mitochondria obtained from human neuroblastoma SH-SY5Y cells exposed to hydrogen peroxide (H2O2) at 300 μM for 24 h. We found that SFN prevented loss of viability in H2O2-treated SH-SY5Y cells. Furthermore, SFN decreased lipid peroxidation, protein carbonylation, and protein nitration in mitochondrial membranes of H2O2-exposed cells. Importantly, SFN enhanced the levels of both cellular and mitochondrial glutathione (GSH). SFN also suppressed the H2O2-mediated inhibition of mitochondrial components involved in the maintenance of the bioenergetics state, such as aconitase, α-ketoglutarate dehydrogenase, and succinate dehydrogenase, as well as complexes I and V. Consequently, SFN prevented the decline induced by H2O2 on the levels of ATP in SH-SY5Y cells. Silencing of the nuclear factor erythroid 2-related factor 2 (Nrf2) transcription factor by using small interfering RNA (siRNA) abolished the mitochondrial and cellular protection elicited by SFN. Therefore, SFN abrogated the H2O2-induced mitochondrial impairment by an Nrf2-dependent manner.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Departamento de Química/ICET, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, CEP 78060-900, Cuiaba, MT, Brazil.
| | | | - Cristina Ribas Fürstenau
- Instituto de Genética e Bioquímica (INGEB), Universidade Federal de Uberlândia (UFU), Patos de Minas, MG, Brazil
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161
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Lahiri A, Hedl M, Yan J, Abraham C. Human LACC1 increases innate receptor-induced responses and a LACC1 disease-risk variant modulates these outcomes. Nat Commun 2017; 8:15614. [PMID: 28593945 PMCID: PMC5472760 DOI: 10.1038/ncomms15614] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 04/11/2017] [Indexed: 12/11/2022] Open
Abstract
Functional consequences for most inflammatory disease-associated loci are incompletely defined, including in the LACC1 (C13orf31) region. Here we show that human peripheral and intestinal myeloid-derived cells express laccase domain-containing 1 (LACC1); LACC1 is expressed in both the cytoplasm and mitochondria. Upon NOD2 stimulation of human macrophages, LACC1 associates with the NOD2-signalling complex, and is critical for optimal NOD2-induced signalling, mitochondrial ROS (mtROS) production, cytokine secretion and bacterial clearance. LACC1 constitutively associates with succinate dehydrogenase (SDH) subunit A, and amplifies pattern recognition receptor (PRR)-induced SDH activity, an important contributor to mtROS production. Relative to LACC1 Ile254, cells transfected with Crohn's disease-risk LACC1 Val254 or LACC1 with mutations of the nearby histidines (249,250) have reduced PRR-induced outcomes. Relative to LACC1 Ile254 carriers, Val254 disease-risk carrier macrophages demonstrate decreased PRR-induced mtROS, signalling, cytokine secretion and bacterial clearance. Therefore, LACC1 is critical for amplifying PRR-induced outcomes, an effect that is attenuated by the LACC1 disease-risk variant.
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Affiliation(s)
- Amit Lahiri
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut 06510, USA
| | - Matija Hedl
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut 06510, USA
| | - Jie Yan
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut 06510, USA
| | - Clara Abraham
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut 06510, USA
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Mitophagy Transcriptome: Mechanistic Insights into Polyphenol-Mediated Mitophagy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017. [PMID: 28626500 PMCID: PMC5463118 DOI: 10.1155/2017/9028435] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Mitochondria are important bioenergetic and signalling hubs critical for myriad cellular functions and homeostasis. Dysfunction in mitochondria is a central theme in aging and diseases. Mitophagy, a process whereby damaged mitochondria are selectively removed by autophagy, plays a key homeostatic role in mitochondrial quality control. Upregulation of mitophagy has shown to mitigate superfluous mitochondrial accumulation and toxicity to safeguard mitochondrial fitness. Hence, mitophagy is a viable target to promote longevity and prevent age-related pathologies. Current challenge in modulating mitophagy for cellular protection involves identification of physiological ways to activate the pathway. Till date, mitochondrial stress and toxins remain the most potent inducers of mitophagy. Polyphenols have recently been demonstrated to protect mitochondrial health by facilitating mitophagy, thus suggesting the exciting prospect of augmenting mitophagy through dietary intake. In this review, we will first discuss the different surveillance mechanisms responsible for the removal of damaged mitochondrial components, followed by highlighting the transcriptional regulatory mechanisms of mitophagy. Finally, we will review the functional connection between polyphenols and mitophagy and provide insight into the underlying mechanisms that potentially govern polyphenol-induced mitophagy.
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Chen X, Wang P, Guo F, Wang X, Wang J, Xu J, Yuan D, Zhang J, Shao C. Autophagy enhanced the radioresistance of non-small cell lung cancer by regulating ROS level under hypoxia condition. Int J Radiat Biol 2017; 93:764-770. [PMID: 28463025 DOI: 10.1080/09553002.2017.1325025] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE Tumor resistance towards radiation has been a big obstacle in the poor prognosis of lung cancer. It has been reported that hypoxia and autophagy partly contribute to this resistance. However, there is controversy over whether autophagy plays a positive role in cancer therapy or not. We aim to find out the specific mechanism of radiation resistance. MATERIALS AND METHODS A549 cells were treated with conditioned medium (CM) under 12 h hypoxia or normoxia before irradiation, followed by the measurement of clonogenic survival, reactive oxygen species (ROS), signal of mitochondria and autophagy flux. In some experiments, the A549 cells were respectively transfected with LC3 small interfering RNA (siRNA), or treated with Earle's Balanced Salt Solution (EBSS). RESULTS We found that hypoxia enhanced cell radioresistance by increasing the induction of autophagy. And after hypoxia stress, the number of mitochondria was reduced but the cellular ROS level was enhanced. It was significant that autophagy may enhance cell radioresistance by reducing ROS during hypoxic treatment. CONCLUSIONS We elucidated the possible mechanisms of autophagy in regulating cancer cell death or survival. These results supply a new opinion about the intrinsic factor of radioresistance of hypoxia tumors.
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Affiliation(s)
- Xiaoyan Chen
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Ping Wang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Fei Guo
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Xiangdong Wang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Juan Wang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Jinping Xu
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Dexiao Yuan
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Jianghong Zhang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Chunlin Shao
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
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Khani M, Motamedi P, Dehkhoda MR, Dabagh Nikukheslat S, Karimi P. Effect of thyme extract supplementation on lipid peroxidation, antioxidant capacity, PGC-1α content and endurance exercise performance in rats. J Int Soc Sports Nutr 2017; 14:11. [PMID: 28439212 PMCID: PMC5401469 DOI: 10.1186/s12970-017-0167-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 04/14/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Athletes have a large extent of oxidant agent production. In the current study, we aimed to determine the influence of thyme extract on the endurance exercise performance, mitochondrial biogenesis, and antioxidant status in rats. METHODS Twenty male Wistar rats were randomly divided into two groups receiving either normal drinking water (non-supplemented group, n = 10) or thyme extract, 400 mg/kg, (supplemented group, n = 10). Rats in both groups were subjected to endurance treadmill training (27 m/min, 10% grade, 60 min, and 5 days/week for 8 weeks). Finally, to determine the endurance capacity, time to exhaustion treadmill running at 36 m/min speed was assessed. At the end of the endurance capacity test, serum and soleus muscle samples were collected and their superoxide dismutase (SOD) and glutathione peroxidase (GPx) activity, as well as malondialdehyde (MDA) concentration were measured. Protein expression of PGC-1α, as a marker of mitochondrial biogenesis, was also determined in the soleus muscle tissue by immunoblotting assay. RESULTS Findings revealed that the exhaustive running time in the treatment group was significantly (p < 0.05) prolonged. Both serum and soleus muscle MDA levels, as an index of lipid peroxidation, had a threefold increase in the thyme extract supplemented group (t18 = 8.11, p < 0.01; t18 = 4.98, p < 0.01 respectively). The activities of SOD and GPx of the soleus muscle were significantly (p < 0.05) higher in the non-supplemented group, while there was no significant difference in serum SOD, GPx activities, and total antioxidant capacity between groups. Furthermore, thyme supplementation significantly (p < 0.05) decreased PGC-1α expression. CONCLUSIONS Thyme extract supplementation increased endurance exercise tolerance in intact animals, although decrease of oxidative stress and regulation of the PGC-1α protein expression are not considered as underlying molecular mechanisms.
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Affiliation(s)
- Mostafa Khani
- Faculty of Physical Education and Sport Sciences, University of Tabriz, Tabriz, Iran
| | - Pezhman Motamedi
- Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran
| | | | | | - Pouran Karimi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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165
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Rathi VK, Das S, Parampalli Raghavendra A, Rao BSS. Naringin abates adverse effects of cadmium-mediated hepatotoxicity: An experimental study using HepG2 cells. J Biochem Mol Toxicol 2017; 31. [PMID: 28422390 DOI: 10.1002/jbt.21915] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 02/09/2017] [Accepted: 02/17/2017] [Indexed: 12/31/2022]
Abstract
This study investigated the protective potential of Naringin (NIN) against cadmium chloride (CdCl2 ) mediated hepatotoxicity using human hepatocellular carcinoma (HepG2) cells. An optimal concentration of NIN (5 μM) was potent enough to confer cytoprotection against CdCl2 (50 μM) as was observed by MTT assay. Preconditioning with NIN maintained redox homeostasis, mitochondrial membrane potential, and reduced apoptosis as marked by decrease in the percentage sub-G0 /G1 and Annexin V-FITC/propidium iodide positive cells (apoptotic). NIN pretreatment maintained the levels of protein thiol along with endogenous activities of Superoxide dismutase, Glutathione S-transferase, and Catalase and lowered lipid peroxidation. Decreased Bax/Bcl2 ratio along with reduced Caspase 3 cleavage and Cytochrome c release indicated that NIN conditioning blocked mitochondrial-mediated apoptosis. Increased Nrf2 and metallothionein (MT) acted as adaptive response in the presence of cadmium. Thus, the protective mechanism of NIN is attributed to its antioxidant potential which aids in redox homeostasis and prevents CdCl2 mediated cytotoxicity.
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Affiliation(s)
- Visesh Kumar Rathi
- Department of Biotechnology, School of Life Sciences, Manipal University, Manipal, Karnataka, 576104, India
| | - Shubhankar Das
- Department of Radiation Biology & Toxicology, School of Life Sciences, Manipal University, Manipal, Karnataka, 576104, India
| | - Archana Parampalli Raghavendra
- Department of Physiology, Melaka Manipal Medical College, Manipal Campus, Manipal University, Manipal, Karnataka, 576104, India
| | - Bola Sadashiva Satish Rao
- Department of Radiation Biology & Toxicology, School of Life Sciences, Manipal University, Manipal, Karnataka, 576104, India
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166
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Resveratrol and Brain Mitochondria: a Review. Mol Neurobiol 2017; 55:2085-2101. [DOI: 10.1007/s12035-017-0448-z] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 02/07/2017] [Indexed: 12/24/2022]
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167
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Liu M, Amini A, Ahmad Z. Safranal and its analogs inhibit Escherichia coli ATP synthase and cell growth. Int J Biol Macromol 2017; 95:145-152. [PMID: 27865956 PMCID: PMC5884629 DOI: 10.1016/j.ijbiomac.2016.11.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 11/09/2016] [Accepted: 11/09/2016] [Indexed: 10/20/2022]
Abstract
Safranal, a dominant component of saffron, is known to have antitumor, cytotoxic, and antibacterial properties. In this study, we examined safranal and its structural analogs-thymol, carvacrol, damascenone, cuminol, 2,6,6-trimethyl-2-cyclohexene-1,4-dione (TMCHD), 4-isopropylbenzyl bromide (IPBB), and 4-tert-butylphenol (TBP) induced inhibition of Escherichia coli membrane bound F1Fo ATP synthase. Safranal and its analogs inhibited wild-type enzyme to variable degrees. While safranal caused 100% inhibition of wild-type F1Fo ATP synthase, only about 50% inhibition occurred for αR283D mutant ATP synthase. Moreover, safranal, thymol, carvacrol, damascenone, cuminol, TMCHD, IPBB, and TBP all fully abrogated the growth of wild-type E. coli cells and had partial or no effect on the growth of null and mutant E. coli strains. Therefore, the antimicrobial properties of safranal, thymol, carvacrol, damascenone, cuminol, TMCHD, IPBB, and TBP can be linked to their binding and inhibition of ATP synthase. Total loss of growth in wild-type and partial or no growth loss in null or mutant E. coli strains demonstrates that ATP synthase is a molecular target for safranal and its structural analogs. Partial inhibition of the αArg-283 mutant enzyme establishes that αArg-283 residue is required in the polyphenol binding pocket of ATP synthase for the binding of safranal. Furthermore, partial growth loss for the null and mutant strains in the presence of inhibitors also suggests the role of other targets and residues in the process of inhibition.
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Affiliation(s)
- Mason Liu
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, MO 63501, United States
| | - Amon Amini
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, MO 63501, United States
| | - Zulfiqar Ahmad
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, MO 63501, United States.
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Silva Santos LF, Stolfo A, Calloni C, Salvador M. Catechin and epicatechin reduce mitochondrial dysfunction and oxidative stress induced by amiodarone in human lung fibroblasts. J Arrhythm 2016; 33:220-225. [PMID: 28607618 PMCID: PMC5459414 DOI: 10.1016/j.joa.2016.09.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 09/15/2016] [Accepted: 09/21/2016] [Indexed: 12/24/2022] Open
Abstract
Background Amiodarone (AMD) and its metabolite N-desethylamiodarone can cause some adverse effects, which include pulmonary toxicity. Some studies suggest that mitochondrial dysfunction and oxidative stress may play a role in these adverse effects. Catechin and epicatechin are recognized as important phenolic compounds with the ability to decrease oxidative stress. Therefore, the aim of this study was to evaluate the potential of catechin and epicatechin to modulate mitochondrial dysfunction and oxidative damage caused by AMD in human lung fibroblast cells (MRC-5). Methods Mitochondrial dysfunction was assessed through the activity of mitochondrial complex I and ATP biosynthesis. Cell viability was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Superoxide dismutase and catalase activity were measured spectrophotometrically at 480 and 240 nm, respectively. Lipid and protein oxidative levels were determined by thiobarbituric reactive substances and protein carbonyl assays, respectively. Nitric oxide (NO) levels were evaluated using the Griess reaction method. Results AMD was able to inhibit the activity of mitochondrial complex I and ATP biosynthesis in MRC-5 cells. Lipid and protein oxidative markers increased along with cell death, while superoxide dismutase and catalase activities and NO production decreased with AMD treatment. Both catechin and epicatechin circumvented mitochondrial dysfunction, thereby restoring the activity of mitochondrial complex I and ATP biosynthesis. Furthermore, the phenolic compounds were able to restore the imbalance in superoxide dismutase and catalase activities as well as the decrease in NO levels induced by AMD. Protein and lipid oxidative damage and cell death were reduced by catechin and epicatechin in AMD-treated cells. Conclusions Catechin and epicatechin reduced mitochondrial dysfunction and oxidative stress caused by AMD in MRC-5 cells.
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Affiliation(s)
- Luciana Fernandes Silva Santos
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul, RS 95070-560, Brazil
| | - Adriana Stolfo
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul, RS 95070-560, Brazil
| | - Caroline Calloni
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul, RS 95070-560, Brazil
| | - Mirian Salvador
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul, RS 95070-560, Brazil
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The Anti-Cancer Effect of Polyphenols against Breast Cancer and Cancer Stem Cells: Molecular Mechanisms. Nutrients 2016; 8:nu8090581. [PMID: 27657126 PMCID: PMC5037565 DOI: 10.3390/nu8090581] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/25/2016] [Accepted: 09/09/2016] [Indexed: 02/07/2023] Open
Abstract
The high incidence of breast cancer in developed and developing countries, and its correlation to cancer-related deaths, has prompted concerned scientists to discover novel alternatives to deal with this challenge. In this review, we will provide a brief overview of polyphenol structures and classifications, as well as on the carcinogenic process. The biology of breast cancer cells will also be discussed. The molecular mechanisms involved in the anti-cancer activities of numerous polyphenols, against a wide range of breast cancer cells, in vitro and in vivo, will be explained in detail. The interplay between autophagy and apoptosis in the anti-cancer activity of polyphenols will also be highlighted. In addition, the potential of polyphenols to target cancer stem cells (CSCs) via various mechanisms will be explained. Recently, the use of natural products as chemotherapeutics and chemopreventive drugs to overcome the side effects and resistance that arise from using chemical-based agents has garnered the attention of the scientific community. Polyphenol research is considered a promising field in the treatment and prevention of breast cancer.
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170
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Wu Y, Shamoto-Nagai M, Maruyama W, Osawa T, Naoi M. Phytochemicals prevent mitochondrial membrane permeabilization and protect SH-SY5Y cells against apoptosis induced by PK11195, a ligand for outer membrane translocator protein. J Neural Transm (Vienna) 2016; 124:89-98. [PMID: 27640013 DOI: 10.1007/s00702-016-1624-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/09/2016] [Indexed: 02/07/2023]
Abstract
Epidemiological studies present the beneficial effects of dietary habits on prevention of aging-associated decline of brain function. Phytochemicals, the second metabolites of food, protect neuronal cells from cell death in cellular models of neurodegenerative disorders, and the neuroprotective activity has been ascribed to the anti-oxidant and anti-inflammatory functions. In this paper, the cellular mechanism of neuroprotection by phytochemicals was investigated, using the cellular model of mitochondrial apoptosis induced by PK11195, a ligand of outer membrane translocator protein, in SH-SY5Y cells. PK11195 induced mitochondrial membrane permeabilization with rapid transit production of superoxide (superoxide flashes) and calcium release from mitochondria, and activated apoptosis signal pathway. Study on the structure-activity relationship of astaxanthin, ferulic acid derivatives, and sesame lignans revealed that these phytochemicals inhibited mitochondrial membrane permeabilization and protected cells from apoptosis. Ferulic acid derivatives and sesame lignans inhibited or enhanced the mitochondrial pore formation and cell death by PK11195 according to their amphiphilic properties, not directly depending on the antioxidant activity. Regulation of pore formation at mitochondrial membrane is discussed as a novel mechanism behind neuroprotective activity of phytochemicals in aging and age-associated neurodegenerative disorders, and also behind dual functions of phytochemicals in neuronal and cancer cells.
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Affiliation(s)
- Yuqiu Wu
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan
| | - Masayo Shamoto-Nagai
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan
| | - Wakako Maruyama
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan
| | - Toshihiko Osawa
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan
| | - Makoto Naoi
- Department of Health and Nutrition, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 320-0195, Japan.
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López A, El-Naggar T, Dueñas M, Ortega T, Estrella I, Hernández T, Gómez-Serranillos M, Palomino O, Carretero M. Influence of Processing in the Phenolic Composition and Health-Promoting Properties of Lentils (Lens culinaris
L.). J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.13113] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- A. López
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - T. El-Naggar
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
- National Research Center; Cairo Egypt
| | - M. Dueñas
- Grupo de Investigación en Polifenoles, Unidad de Nutrición y Bromatología, Facultad de Farmacia; Universidad de Salamanca; Salamanca Spain
| | - T. Ortega
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - I. Estrella
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición (CSIC); Madrid Spain
| | - T. Hernández
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición (CSIC); Madrid Spain
| | - M.P. Gómez-Serranillos
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - O.M. Palomino
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
| | - M.E. Carretero
- Departamento de Farmacología, Facultad de Farmacia; Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n; Madrid 28040 Spain
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Acute consumption of organic and conventional tropical grape juices (Vitis labrusca L.) increases antioxidants in plasma and erythrocytes, but not glucose and uric acid levels, in healthy individuals. Nutr Res 2016; 36:808-17. [DOI: 10.1016/j.nutres.2016.04.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/12/2016] [Accepted: 04/25/2016] [Indexed: 12/16/2022]
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173
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Keshtzar E, Khodayar MJ, Javadipour M, Ghaffari MA, Bolduc DL, Rezaei M. Ellagic acid protects against arsenic toxicity in isolated rat mitochondria possibly through the maintaining of complex II. Hum Exp Toxicol 2016; 35:1060-72. [DOI: 10.1177/0960327115618247] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic arsenic exposure has been linked to many health problems including diabetes and cancer. In the present study, we assessed the protective effect of ellagic acid (EA) against toxicity induced by arsenic in isolated rat liver mitochondria. Reactive oxygen species (ROS) and mitochondrial membrane potential decline were assayed using dichlorofluorescein diacetate and rhodamine 123, respectively, and dehydrogenase activity obtained by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide conversion assay. Arsenic increased ROS levels and mitochondrial dysfunction, which led to a reduction in mitochondrial total dehydrogenase activity. Mitochondria pretreated with EA exposed to arsenic at various concentrations led to a reversal of ROS production and mitochondrial damage. Our results showed that mitochondria were significantly affected when exposed to arsenic, which resulted in excessive ROS production and mitochondrial membrane disruption. Pretreatment with EA, reduced ROS amounts, mitochondrial damage, and restored total dehydrogenase activity specifically associated with mitochondrial complex II. EA protective characteristics may be accomplished particularly throughout the mitochondrial maintenance either directly by its antioxidant property or indirectly through its maintaining of complex II. These findings also suggest a potential role for EA in treating or preventing mitochondria associated disorders.
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Affiliation(s)
- E Keshtzar
- Diabetes Research Center, Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - MJ Khodayar
- Department of Pharmacology and Toxicology, School of Pharmacy, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - M Javadipour
- Diabetes Research Center, Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - MA Ghaffari
- Cellular and Molecular Research Center, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - DL Bolduc
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - M Rezaei
- Department of Pharmacology and Toxicology, School of Pharmacy, Jundishapur University of Medical Sciences, Ahvaz, Iran
- Cellular and Molecular Research Center, Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Toxicology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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174
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Effect of isoorientin on intracellular antioxidant defence mechanisms in hepatoma and liver cell lines. Biomed Pharmacother 2016; 81:356-362. [DOI: 10.1016/j.biopha.2016.04.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 04/11/2016] [Accepted: 04/11/2016] [Indexed: 11/17/2022] Open
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175
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Müller SD, Florentino D, Ortmann CF, Martins FA, Danielski LG, Michels M, de Souza Constantino L, Petronilho F, Reginatto FH. Anti-inflammatory and antioxidant activities of aqueous extract of Cecropia glaziovii leaves. JOURNAL OF ETHNOPHARMACOLOGY 2016; 185:255-262. [PMID: 26965365 DOI: 10.1016/j.jep.2016.03.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 03/04/2016] [Accepted: 03/05/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cecropia glaziovii Sneth leaves extract is widely used as a traditional folk medicine in Brazil, especially for the treatment of diabetes, and as an antihypertensive and antiinflammatory agent. AIM OF THE STUDY To investigate the anti-inflammatory and antioxidant properties of crude aqueous extract (CAE) of C. glaziovii leaves. MATERIALS AND METHODS The in vivo anti-inflammatory and antioxidant effect of the CAE (10-300mg/kg, intragastrically) was investigated in the animal model of pleurisy. The cell migration, proinflammatory cytokines (TNF-α, IL-1β and IL-6), nitrite/nitrate concentration, myeloperoxidase (MPO) activity, oxidative damage in lipids and proteins, lactate dehydrogenase (LDH) activity and total protein content were also analyzed. Furthermore, the in vitro antioxidant activity of CAE was evaluated by the inhibition of formation of thiobarbituric acid reactive substances (TBARS), induced by free radical generators (H2O2, FeSO4 and AAPH) on a lipid-rich substrate. Hence, the chemical characterizarion of CAE by HPLC was therefore performed. The results showed that the inflammatory process caused by the administration of carragenin (Cg) into the pleural cavity resulted in a substantial increase in inflammatory parameters and oxidative damage. These levels seems to be reversed after CAE treatment in animals with similar results to Dexamethasone (Dex) treatment. Further, the CAE was effective in reducing proinflammatory cytokines, cell infiltrate, MPO activity, nitrite/nitrate concentration, LDH activity, and total protein levels with concomitant attenuation of all parameters associated with oxidative damage induced by Cg. Finally, the CAE presented in vitro antioxidant activity induced by free radical generators at all the concentrations investigated. HPLC analysis confirmed the presence of chlorogenic acid and C-glycosylflavonoids (isoorientin and isovitexin) as the major compounds of the CAE. CONCLUSION CAE of C. glaziovii exerts significant antiinflammatory and antioxidant activities and this effect can be attributed, at least in part, to the presence of chlorogenic acid and the C-glycosylflavonoids.
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Affiliation(s)
- Simony Davet Müller
- Laboratório de Farmacognosia, Programa de Pós Graduação em Farmácia, Universidade Federal de Santa Catarina/UFSC, Florianópolis, SC, Brazil
| | - Drielly Florentino
- Laboratório de Fisiopatologia Clínica e Experimental, Programa de Pós Graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina/UNISUL, Tubarão, SC, Brazil
| | - Caroline Flach Ortmann
- Laboratório de Farmacognosia, Programa de Pós Graduação em Farmácia, Universidade Federal de Santa Catarina/UFSC, Florianópolis, SC, Brazil
| | - Fernanda Amélia Martins
- Laboratório de Farmacognosia, Programa de Pós Graduação em Farmácia, Universidade Federal de Santa Catarina/UFSC, Florianópolis, SC, Brazil
| | - Lucineia Gainski Danielski
- Laboratório de Fisiopatologia Clínica e Experimental, Programa de Pós Graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina/UNISUL, Tubarão, SC, Brazil
| | - Monique Michels
- Laboratório de Fisiopatologia Clínica e Experimental, Programa de Pós Graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina/UNISUL, Tubarão, SC, Brazil
| | - Larissa de Souza Constantino
- Laboratório de Farmacognosia, Programa de Pós Graduação em Farmácia, Universidade Federal de Santa Catarina/UFSC, Florianópolis, SC, Brazil
| | - Fabricia Petronilho
- Laboratório de Fisiopatologia Clínica e Experimental, Programa de Pós Graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina/UNISUL, Tubarão, SC, Brazil
| | - Flavio Henrique Reginatto
- Laboratório de Farmacognosia, Programa de Pós Graduação em Farmácia, Universidade Federal de Santa Catarina/UFSC, Florianópolis, SC, Brazil.
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176
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Alleva R, Manzella N, Gaetani S, Ciarapica V, Bracci M, Caboni MF, Pasini F, Monaco F, Amati M, Borghi B, Tomasetti M. Organic honey supplementation reverses pesticide-induced genotoxicity by modulating DNA damage response. Mol Nutr Food Res 2016; 60:2243-2255. [DOI: 10.1002/mnfr.201600005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 04/03/2016] [Accepted: 04/05/2016] [Indexed: 02/04/2023]
Affiliation(s)
- Renata Alleva
- Department of Anesthesiology Research Unit; IRCCS Orthopaedic Institute Rizzoli; Bologna Italy
| | - Nicola Manzella
- Department of Clinical and Molecular Sciences; Polytechnic University of Marche; Ancona Italy
| | - Simona Gaetani
- Department of Clinical and Molecular Sciences; Polytechnic University of Marche; Ancona Italy
| | - Veronica Ciarapica
- Department of Clinical and Molecular Sciences; Polytechnic University of Marche; Ancona Italy
| | - Massimo Bracci
- Department of Clinical and Molecular Sciences; Polytechnic University of Marche; Ancona Italy
| | - Maria Fiorenza Caboni
- Interdepartmental Centre of Agri-food Industrial Research; University of Bologna; Italy
| | - Federica Pasini
- Interdepartmental Centre of Agri-food Industrial Research; University of Bologna; Italy
| | - Federica Monaco
- Department of Clinical and Molecular Sciences; Polytechnic University of Marche; Ancona Italy
| | - Monica Amati
- Department of Clinical and Molecular Sciences; Polytechnic University of Marche; Ancona Italy
| | - Battista Borghi
- Department of Anesthesiology Research Unit; IRCCS Orthopaedic Institute Rizzoli; Bologna Italy
| | - Marco Tomasetti
- Department of Clinical and Molecular Sciences; Polytechnic University of Marche; Ancona Italy
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177
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Cordeiro KW, Felipe JL, Malange KF, do Prado PR, de Oliveira Figueiredo P, Garcez FR, de Cássia Freitas K, Garcez WS, Toffoli-Kadri MC. Anti-inflammatory and antinociceptive activities of Croton urucurana Baillon bark. JOURNAL OF ETHNOPHARMACOLOGY 2016; 183:128-135. [PMID: 26944237 DOI: 10.1016/j.jep.2016.02.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/24/2016] [Accepted: 02/28/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Croton urucurana (Euphorbiaceae) is popularly used in Brazil to treat inflammatory processes, pain, and gastric ulcers. AIM OF STUDY To evaluate the anti-inflammatory and antinociceptive properties of the methanol extract from the bark of C. urucurana (MECu) in mice and identify its chemical constituents. MATERIALS AND METHODS The extract was characterized by UHPLC-DAD-ESI-Q-TOF-MS/MS. Extract doses of 25, 100, and 400mg/kg were employed in the biological assays. Evaluation of anti-inflammatory activity was based on paw edema and leukocyte recruitment into the peritoneal cavity of mice, both induced by carrageenan. Abdominal writhing caused by acetic acid and duration of formalin-induced paw-licking were the models employed to evaluate antinociceptive activity. RESULTS Ten compounds were identified in the extract: (+)-gallocatechin (1), procyanidin B3 (2), (+)-catechin (3), (-)-epicatechin (4), tembetarine (5), magnoflorine (6), taspine (7), methyl-3-oxo-12-epi-barbascoate (8), methyl-12-epi-barbascoate (9), and hardwickiic acid (10). This is the first report of compounds 2, 4, 6, 7, and 10 in C. urucurana and compound 5 in the genus Croton. In addition to inhibiting paw edema and leukocyte recruitment (particularly of polymorphonuclear cells) into the peritoneal cavity of mice, MECu reduced the number of abdominal writhings induced by acetic acid and the duration of formalin-induced paw licking. CONCLUSIONS The methanol extract of C. urucurana bark exhibited anti-inflammatory and antinociceptive properties, corroborating its use in folk medicine. These effects may be related to the presence of diterpenes, alkaloids, and flavonoids.
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Affiliation(s)
- Kátia Wolff Cordeiro
- Faculdade de Medicina, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Josyelen Lousada Felipe
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Kauê Franco Malange
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | | | | | - Karine de Cássia Freitas
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Walmir Silva Garcez
- Instituto de Química, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
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178
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Cocoa polyphenols exhibit antioxidant, anti-inflammatory, anticancerogenic, and anti-necrotic activity in carbon tetrachloride-intoxicated mice. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.02.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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179
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Liobikas J, Skemiene K, Trumbeckaite S, Borutaite V. Anthocyanins in cardioprotection: A path through mitochondria. Pharmacol Res 2016; 113:808-815. [PMID: 27038533 DOI: 10.1016/j.phrs.2016.03.036] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 03/24/2016] [Accepted: 03/29/2016] [Indexed: 11/16/2022]
Abstract
Constantly growing experimental data from in vitro, in vivo and epidemiological studies show the great potential of anthocyanin-containing fruit and berry extracts or pure individual anthocyanins as cardioprotective food components or pharmacological compounds. In general it is regarded that the cardioprotective activity of anthocyanins is related to their antioxidant properties. However there are recent reports that certain anthocyanins may protect the heart against ischemia/reperfusion-induced injury by activating signal transduction pathways and sustaining mitochondrial functions instead of acting solely as antioxidants. In this review, we summarize the proposed mechanisms of direct or indirect actions of anthocyanins within cardiac cells with the special emphasis on recently discovered their pharmacological effects on mitochondria in cardioprotection: reduction of cytosolic cytochrome c preventing apoptosis and sustainment of electron transfer between NADH dehydrogenase and cytochrome c supporting oxidative phosphorylation in ischemia-damaged mitochondria.
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Affiliation(s)
- Julius Liobikas
- Neuroscience Institute, Lithuanian University of Health Sciences, Eiveniu str. 4, LT-50009 Kaunas, Lithuania
| | - Kristina Skemiene
- Neuroscience Institute, Lithuanian University of Health Sciences, Eiveniu str. 4, LT-50009 Kaunas, Lithuania
| | - Sonata Trumbeckaite
- Neuroscience Institute, Lithuanian University of Health Sciences, Eiveniu str. 4, LT-50009 Kaunas, Lithuania
| | - Vilmante Borutaite
- Neuroscience Institute, Lithuanian University of Health Sciences, Eiveniu str. 4, LT-50009 Kaunas, Lithuania.
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180
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Pshenichnyuk SA, Elkin YN, Kulesh NI, Lazneva EF, Komolov AS. Low-energy electron interaction with retusin extracted from Maackia amurensis: towards a molecular mechanism of the biological activity of flavonoids. Phys Chem Chem Phys 2016; 17:16805-12. [PMID: 26058603 DOI: 10.1039/c5cp02890f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The antioxidant isoflavone retusin efficiently attaches low-energy electrons in vacuo, generating fragment species via dissociative electron attachment (DEA), as has been shown by DEA spectroscopy. According to in silico results obtained by means of density functional theory, retusin is able to attach solvated electrons and could be decomposed under reductive conditions in vivo, for instance, near the mitochondrial electron transport chain, analogous to gas-phase DEA. The most intense decay channels of retusin temporary negative ions were found to be associated with the elimination of H atoms and H2 molecules. Doubly dehydrogenated fragment anions were predicted to possess a quinone structure. It is thought that molecular hydrogen, known for its selective antioxidant properties, can be efficiently generated via electron attachment to retusin in mitochondria and may be responsible for its antioxidant activity. The second abundant species, i.e., quinone bearing an excess negative charge, can serve as an electron carrier and can return the captured electron back to the respiration cycle. The number of OH substituents and their relative positions are crucial for the present molecular mechanism, which can explain the radical scavenging activity of polyphenolic compounds.
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Affiliation(s)
- Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Research Centre, Russian Academy of Sciences, Prospect Oktyabrya 151, 450075 Ufa, Russia.
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181
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Li P, Wang X, Zhao M, Song R, Zhao KS. Polydatin protects hepatocytes against mitochondrial injury in acute severe hemorrhagic shock via SIRT1-SOD2 pathway. Expert Opin Ther Targets 2016; 19:997-1010. [PMID: 26073907 DOI: 10.1517/14728222.2015.1054806] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE The aim of the study was to determine whether hepatocyte mitochondrial injury instigates severe shock and to explore effective therapy. METHODS Wistar rats were randomly divided into five groups: Control (sham) group, shock + normal saline, shock + cyclosporine A, shock + resveratrol (Res) and shock + polydatin (PD) group. Mitochondrial morphology and function in hepatocytes following treatment were determined. RESULTS Hepatocytes following severe shock exhibited mitochondrial dysfunction characterized with opening of mitochondrial permeability transition pores, mitochondrial swelling, decreased mitochondrial membrane potential (ΔΨm) and reduced ATP levels. Moreover, severe shock induced oxidative stress with increased lipid peroxidation and reactive oxygen species, decreased SOD2 (Superoxide Dismutase 2) and GSH/GSSG, which resulted in increased lysosomal membrane permeabilization and hepatocyte mitochondrial injury. Additionally, Res and PD restored decreased deacetylase sirtuin1 activity and protein expression in liver tissue following severe shock, suppressed oxidative stress-induced lysosomal unstability and mitochondrial injury by increasing the protein expression of SOD2, and thereby contributed to the prevention of hepatocyte mitochondria dysfunction and liver injury. CONCLUSIONS PD effectively preserved hepatocytes from mitochondrial injury via SIRT1-SOD2 pathway and may be a new approach to treatment of irreversible shock.
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Affiliation(s)
- Pengyun Li
- Southern Medical University, Guangdong Key Laboratory of Shock and Microcirculation Research, Department of Pathophysiology , Guangzhou, 510515 , China +86 20 61648232 ; +86 20 61648299 ; ,
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182
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Serrano JCE, Cassanye A, Martín-Gari M, Granado-Serrano AB, Portero-Otín M. Effect of Dietary Bioactive Compounds on Mitochondrial and Metabolic Flexibility. Diseases 2016; 4:diseases4010014. [PMID: 28933394 PMCID: PMC5456301 DOI: 10.3390/diseases4010014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/25/2016] [Accepted: 03/07/2016] [Indexed: 12/21/2022] Open
Abstract
Metabolic flexibility is the capacity of an organism to adequately respond to changes in the environment, such as nutritional input, energetic demand, etc. An important player in the capacity of adaptation through different stages of metabolic demands is the mitochondrion. In this context, mitochondrial dysfunction has been attributed to be the onset and center of many chronic diseases, which are denoted by an inability to adapt fuel preferences and induce mitochondrial morphological changes to respond to metabolic demands, such as mitochondrial number, structure and function. Several nutritional interventions have shown the capacity to induce changes in mitochondrial biogenesis/degradation, oxidative phosphorylation efficiency, mitochondrial membrane composition, electron transfer chain capacity, etc., in metabolic inflexibility states that may open new target options and mechanisms of action of bioactive compounds for the treatment of metabolic diseases. This review is focused in three well-recognized food bioactive compounds that modulate insulin sensitivity, polyphenols, ω-3 fatty acids and dietary fiber, by several mechanism of action, like caloric restriction properties and inflammatory environment modulation, both closely related to mitochondrial function and dynamics.
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Affiliation(s)
- Jose C E Serrano
- Department of Experimental Medicine, University of Lleida, Av. Alcalde Rovira Roure 80, Lleida 25198, Spain.
| | - Anna Cassanye
- Department of Experimental Medicine, University of Lleida, Av. Alcalde Rovira Roure 80, Lleida 25198, Spain.
| | - Meritxell Martín-Gari
- Department of Experimental Medicine, University of Lleida, Av. Alcalde Rovira Roure 80, Lleida 25198, Spain.
| | - Ana Belen Granado-Serrano
- Department of Experimental Medicine, University of Lleida, Av. Alcalde Rovira Roure 80, Lleida 25198, Spain.
| | - Manuel Portero-Otín
- Department of Experimental Medicine, University of Lleida, Av. Alcalde Rovira Roure 80, Lleida 25198, Spain.
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183
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Karabín M, Hudcová T, Jelínek L, Dostálek P. Biologically Active Compounds from Hops and Prospects for Their Use. Compr Rev Food Sci Food Saf 2016; 15:542-567. [PMID: 33401815 DOI: 10.1111/1541-4337.12201] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/31/2016] [Accepted: 02/02/2016] [Indexed: 02/06/2023]
Abstract
Although female cones of the hop plant (Humulus lupulus) are known primarily as raw material supplying characteristic bitterness and aroma to beer, their equally significant health-promoting effects have been known to mankind for several thousand years and hop is a plant traditionally utilized in folk medicine. This paper summarizes the scientific knowledge on the effects of all 3 major groups of secondary metabolites of hops; polyphenols, essential oils, and resins. Because of their chemical diversity, it is no coincidence that these compounds exhibit a wide range of pharmacologically important properties. In addition to antioxidant, anti-inflammatory, and anticancer-related properties, particular attention is being paid to prenylflavonoids that occur almost exclusively in hops and are considered to be some of the most active phytoestrogens known. Hop oils and resins are well known for their sedative and other neuropharmacological properties, but in addition, these compounds exhibit antibacterial and antifungal effects. Recently, alpha bitter acids have been shown to block the development of a number of complex lifestyle diseases that are referred to by the collective name "metabolic syndrome." Information presented in this review confirms the significant potential for the use of hops in the pharmaceutical industry and provides an understanding of beer as a natural drink that, although moderately consumed, may become a source of many health-promoting compounds.
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Affiliation(s)
- Marcel Karabín
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Tereza Hudcová
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Lukáš Jelínek
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Pavel Dostálek
- Dept. of Biotechnology, Faculty of Food and Biochemical Technology, Univ. of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
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184
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Couturier K, Hininger I, Poulet L, Anderson RA, Roussel AM, Canini F, Batandier C. Cinnamon intake alleviates the combined effects of dietary-induced insulin resistance and acute stress on brain mitochondria. J Nutr Biochem 2016; 28:183-90. [DOI: 10.1016/j.jnutbio.2015.10.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/14/2015] [Accepted: 10/19/2015] [Indexed: 12/26/2022]
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185
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Calloni C, Silva Santos LF, Martínez LS, Salvador M. Data on cell viability of human lung fibroblasts treated with polyphenols-rich extract from Plinia trunciflora (O. Berg) Kausel). Data Brief 2016; 6:728-31. [PMID: 26870757 PMCID: PMC4738006 DOI: 10.1016/j.dib.2016.01.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 01/08/2016] [Accepted: 01/13/2016] [Indexed: 11/16/2022] Open
Abstract
Jaboticaba (Plinia trunciflora (O. Berg) Kausel) is a Brazilian native berry, which presents high levels of polyphenols. Here we provide data related to the effects of the polyphenols-rich extract from jaboticaba on the cell viability, mitochondrial complex I (nicotinamide adenine dinucleotide/CoQ oxidoreductase) activity and ATP biosynthesis of human lung fibroblast cells (MRC-5) treated with amiodarone. The data presented in this article demonstrate that the polyphenols-rich extract from jaboticaba was able to reduce cell death as well as the decrease in complex I activity and ATP biosynthesis caused by amiodarone in MRC-5 cells.
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Affiliation(s)
- Caroline Calloni
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul (UCS), 95070-560 Caxias do Sul, RS, Brazil
| | - Luciana Fernandes Silva Santos
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul (UCS), 95070-560 Caxias do Sul, RS, Brazil
| | - Luana Soares Martínez
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul (UCS), 95070-560 Caxias do Sul, RS, Brazil
| | - Mirian Salvador
- Laboratório de Estresse Oxidativo e Antioxidantes, Instituto de Biotecnologia, Universidade de Caxias do Sul (UCS), 95070-560 Caxias do Sul, RS, Brazil
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186
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Almeida S, Alves MG, Sousa M, Oliveira PF, Silva BM. Are Polyphenols Strong Dietary Agents Against Neurotoxicity and Neurodegeneration? Neurotox Res 2016; 30:345-66. [PMID: 26745969 DOI: 10.1007/s12640-015-9590-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 12/10/2015] [Accepted: 12/12/2015] [Indexed: 12/21/2022]
Abstract
Life expectancy of most human populations has greatly increased as a result of factors including better hygiene, medical practice, and nutrition. Unfortunately, as humans age, they become more prone to suffer from neurodegenerative diseases and neurotoxicity. Polyphenols can be cheaply and easily obtained as part of a healthy diet. They present a wide range of biological activities, many of which have relevance for human health. Compelling evidence has shown that dietary phytochemicals, particularly polyphenols, have properties that may suppress neuroinflammation and prevent toxic and degenerative effects in the brain. The mechanisms by which polyphenols exert their action are not fully understood, but it is clear that they have a direct effect through their antioxidant activities. They have also been shown to modulate intracellular signaling cascades, including the PI3K-Akt, MAPK, Nrf2, and MEK pathways. Polyphenols also interact with a range of neurotransmitters, illustrating that these compounds can promote their health benefits in the brain through a direct, indirect, or complex action. We discuss whether polyphenols obtained from diet or food supplements are an effective strategy to prevent or treat neurodegeneration. We also discuss the safety, mechanisms of action, and the current and future relevance of polyphenols in clinical treatment of neurodegenerative diseases. As populations age, it is important to discuss the dietary strategies to avoid or counteract the effects of incurable neurodegenerative disorders, which already represent an enormous financial and emotional burden for health care systems, patients, and their families.
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Affiliation(s)
- Susana Almeida
- Department of Microscopy, Laboratory of Cell Biology and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Marco G Alves
- CICS-UBI, Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Mário Sousa
- Department of Microscopy, Laboratory of Cell Biology and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,Centre for Reproductive Genetics Prof. Alberto Barros, Porto, Portugal
| | - Pedro F Oliveira
- Department of Microscopy, Laboratory of Cell Biology and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal.,I3S - Institute of Health Research and Innovation, University of Porto, Porto, Portugal
| | - Branca M Silva
- CICS-UBI, Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506, Covilhã, Portugal.
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187
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Martinez V, Mestre TC, Rubio F, Girones-Vilaplana A, Moreno DA, Mittler R, Rivero RM. Accumulation of Flavonols over Hydroxycinnamic Acids Favors Oxidative Damage Protection under Abiotic Stress. FRONTIERS IN PLANT SCIENCE 2016; 7:838. [PMID: 27379130 PMCID: PMC4908137 DOI: 10.3389/fpls.2016.00838] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 05/27/2016] [Indexed: 05/18/2023]
Abstract
Efficient detoxification of reactive oxygen species (ROS) is thought to play a key role in enhancing the tolerance of plants to abiotic stresses. Although multiple pathways, enzymes, and antioxidants are present in plants, their exact roles during different stress responses remain unclear. Here, we report on the characterization of the different antioxidant mechanisms of tomato plants subjected to heat stress, salinity stress, or a combination of both stresses. All the treatments applied induced an increase of oxidative stress, with the salinity treatment being the most aggressive, resulting in plants with the lowest biomass, and the highest levels of H2O2 accumulation, lipid peroxidation, and protein oxidation. However, the results obtained from the transcript expression study and enzymatic activities related to the ascorbate-glutathione pathway did not fully explain the differences in the oxidative damage observed between salinity and the combination of salinity and heat. An exhaustive metabolomics study revealed the differential accumulation of phenolic compounds depending on the type of abiotic stress applied. An analysis at gene and enzyme levels of the phenylpropanoid metabolism concluded that under conditions where flavonols accumulated to a greater degree as compared to hydroxycinnamic acids, the oxidative damage was lower, highlighting the importance of flavonols as powerful antioxidants, and their role in abiotic stress tolerance.
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Affiliation(s)
- Vicente Martinez
- Department of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones CientíficasMurcia, Spain
| | - Teresa C. Mestre
- Department of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones CientíficasMurcia, Spain
| | - Francisco Rubio
- Department of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones CientíficasMurcia, Spain
| | - Amadeo Girones-Vilaplana
- Department of Food Science and Technology, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones CientíficasMurcia, Spain
| | - Diego A. Moreno
- Department of Food Science and Technology, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones CientíficasMurcia, Spain
| | - Ron Mittler
- Department of Biological Sciences, College of Arts and Sciences, University of North TexasDenton, TX, USA
| | - Rosa M. Rivero
- Department of Plant Nutrition, Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones CientíficasMurcia, Spain
- *Correspondence: Rosa M. Rivero
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188
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Mocanu MM, Nagy P, Szöllősi J. Chemoprevention of Breast Cancer by Dietary Polyphenols. Molecules 2015; 20:22578-620. [PMID: 26694341 PMCID: PMC6332464 DOI: 10.3390/molecules201219864] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/04/2015] [Accepted: 12/08/2015] [Indexed: 02/07/2023] Open
Abstract
The review will discuss in detail the effects of polyphenols on breast cancer, including both the advantages and disadvantages of the applications of these natural compounds. First, we focus on the characterization of the main classes of polyphenols and then on in vitro and in vivo experiments carried out in breast cancer models. Since the therapeutic effects of the administration of a single type of polyphenol might be limited because of the reduced bioavailability of these drugs, investigations on combination of several polyphenols or polyphenols with conventional therapy will also be discussed. In addition, we present recent data focusing on clinical trials with polyphenols and new approaches with nanoparticles in breast cancer. Besides the clinical and translational findings this review systematically summarizes our current knowledge about the molecular mechanisms of anti-cancer effects of polyphenols, which are related to apoptosis, cell cycle regulation, plasma membrane receptors, signaling pathways and epigenetic mechanisms. At the same time the effects of polyphenols on primary tumor, metastasis and angiogenesis in breast cancer are discussed. The increasing enthusiasm regarding the combination of polyphenols and conventional therapy in breast cancer might lead to additional efforts to motivate further research in this field.
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Affiliation(s)
- Maria-Magdalena Mocanu
- Department of Biophysics, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
| | - Péter Nagy
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
| | - János Szöllősi
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
- MTA-DE Cell Biology and Signaling Research Group, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary.
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189
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190
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Oxidative Stress Type Influences the Properties of Antioxidants Containing Polyphenols in RINm5F Beta Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:859048. [PMID: 26508986 PMCID: PMC4609815 DOI: 10.1155/2015/859048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 06/04/2015] [Indexed: 12/17/2022]
Abstract
The in vitro methods currently used to screen bioactive compounds focus on the use of a single model of oxidative stress. However, this simplistic view may lead to conflicting results. The aim of this study was to evaluate the antioxidant properties of two natural extracts (a mix of red wine polyphenols (RWPs) and epigallocatechin gallate (EGCG)) with three models of oxidative stress induced with hydrogen peroxide (H2O2), a mixture of hypoxanthine and xanthine oxidase (HX/XO), or streptozotocin (STZ) in RINm5F beta cells. We employed multiple approaches to validate their potential as therapeutic treatment options, including cell viability, reactive oxygen species production, and antioxidant enzymes expression. All three oxidative stresses induced a decrease in cell viability and an increase in apoptosis, whereas the level of ROS production was variable depending on the type of stress. The highest level of ROS was found for the HX/XO-induced stress, an increase that was reflected by higher expression antioxidant enzymes. Further, both antioxidant compounds presented beneficial effects during oxidative stress, but EGCG appeared to be a more efficient antioxidant. These data indicate that the efficiency of natural antioxidants is dependent on both the nature of the compound and the type of oxidative stress generated.
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Lapshina EA, Zamaraeva M, Cheshchevik VT, Olchowik-Grabarek E, Sekowski S, Zukowska I, Golovach NG, Burd VN, Zavodnik IB. Cranberry flavonoids prevent toxic rat liver mitochondrial damage in vivo and scavenge free radicals in vitro. Cell Biochem Funct 2015; 33:202-10. [PMID: 25962994 DOI: 10.1002/cbf.3104] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 03/05/2015] [Accepted: 03/18/2015] [Indexed: 01/16/2023]
Abstract
The present study was undertaken for further elucidation of the mechanisms of flavonoid biological activity, focusing on the antioxidative and protective effects of cranberry flavonoids in free radical-generating systems and those on mitochondrial ultrastructure during carbon tetrachloride-induced rat intoxication. Treatment of rats with cranberry flavonoids (7 mg/kg) during chronic carbon tetrachloride-induced intoxication led to prevention of mitochondrial damage, including fragmentation, rupture and local loss of the outer mitochondrial membrane. In radical-generating systems, cranberry flavonoids effectively scavenged nitric oxide (IC50 = 4.4 ± 0.4 µg/ml), superoxide anion radicals (IC50 = 2.8 ± 0.3 µg/ml) and hydroxyl radicals (IC50 = 53 ± 4 µg/ml). The IC50 for reduction of 1,1-diphenyl-2-picrylhydrazyl radicals (DPPH) was 2.2 ± 0.3 µg/ml. Flavonoids prevented to some extent lipid peroxidation in liposomal membranes and glutathione oxidation in erythrocytes treated with UV irradiation or organic hydroperoxides as well as decreased the rigidity of the outer leaflet of the liposomal membranes. The hepatoprotective potential of cranberry flavonoids could be due to specific prevention of rat liver mitochondrial damage. The mitochondria-addressed effects of flavonoids might be related both to radical-scavenging properties and modulation of various mitochondrial events.
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Affiliation(s)
- Elena A Lapshina
- Department of Biochemistry, Yanka Kupala State University of Grodno, Grodno, Belarus
| | - Maria Zamaraeva
- Department of Biophysics, University of Bialystok, Bialystok, Poland
| | - Vitali T Cheshchevik
- Department of Biochemistry, Yanka Kupala State University of Grodno, Grodno, Belarus
| | | | - Szymon Sekowski
- Department of Biophysics, University of Bialystok, Bialystok, Poland
| | - Izabela Zukowska
- Department of Biophysics, University of Bialystok, Bialystok, Poland
| | - Nina G Golovach
- Department of Biochemistry, Yanka Kupala State University of Grodno, Grodno, Belarus
| | - Vasili N Burd
- Department of Biochemistry, Yanka Kupala State University of Grodno, Grodno, Belarus
| | - Ilya B Zavodnik
- Department of Biochemistry, Yanka Kupala State University of Grodno, Grodno, Belarus
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192
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Epigallocatechin 3-gallate ameliorates bile duct ligation induced liver injury in mice by modulation of mitochondrial oxidative stress and inflammation. PLoS One 2015; 10:e0126278. [PMID: 25955525 PMCID: PMC4425400 DOI: 10.1371/journal.pone.0126278] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 03/31/2015] [Indexed: 12/31/2022] Open
Abstract
Cholestatic liver fibrosis was achieved by bile duct ligation (BDL) in mice. Liver injury associated with BDL for 15 days included significant reactive oxygen/nitrogen species generation, liver inflammation, cell death and fibrosis. Administration of Epigallocatechin 3-Gallate (EGCG) in animals reduced liver fibrosis involving parenchymal cells in BDL model. EGCG attenuated BDL-induced gene expression of pro-fibrotic markers (Collagen, Fibronectin, alpha 2 smooth muscle actin or SMA and connective tissue growth factor or CTGF), mitochondrial oxidative stress, cell death marker (DNA fragmentation and PARP activity), NFκB activity and pro-inflammatory cytokines (TNFα, MIP1α, IL1β, and MIP2). EGCG also improved BDL induced damages of mitochondrial electron transport chain complexes and antioxidant defense enzymes such as glutathione peroxidase and manganese superoxide dismutase. EGCG also attenuated hydrogen peroxide induced cell death in hepatocytes in vitro and alleviate stellate cells mediated fibrosis through TIMP1, SMA, Collagen 1 and Fibronectin in vitro. In conclusion, the reactive oxygen/nitrogen species generated from mitochondria plays critical pathogenetic role in the progression of liver inflammation and fibrosis and this study indicate that EGCG might be beneficial for reducing liver inflammation and fibrosis.
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193
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Yu J, Zhu H, Gattoni-Celli S, Taheri S, Kindy MS. Dietary supplementation of GrandFusion(®) mitigates cerebral ischemia-induced neuronal damage and attenuates inflammation. Nutr Neurosci 2015; 19:290-300. [PMID: 25879584 DOI: 10.1179/1476830515y.0000000021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Dietary supplementation of fruits and vegetables has been the main stay for nutritional benefit and overall well-being. GrandFusion(®) is a nutritional supplement that contains the natural nutrients from whole fruits and vegetables that include complex nutrients and phytonutrients that contain anti-oxidant, anti-inflammatory, and neuroprotective properties. METHODS In this study, C57BL/6 mice were fed a diet supplemented with GrandFusion(®) for 2 months prior to 1 hour of ischemia induced by occlusion of the middle cerebral artery (MCAo) followed by various times of reperfusion. Mice were subjected to MCAo for 1 hour and then at various times following reperfusion, animals were assessed for behavioral outcomes (open field testing, rotarod, and adhesive test removal), and infarct volumes (cresyl violet and triphenyltetrazolium chloride). In addition, to determine the potential mechanisms associated with treatment, the brain tissue was examined for changes in oxidative stress and inflammatory markers. RESULTS The GrandFusion(®) diet was able to show a significant protection from infarct damage in the brain and an improvement in neurological outcomes. The diet did not alter heart rate, blood pressure, pO2, pCO2, or pH. In addition, the diet mitigated inflammation by reducing microglial and astrocytic activation following ischemia and reperfusion and limiting oxidative stress. DISCUSSION The study demonstrates the neuroprotective effect of a diet rich in fruits and vegetables that contain anti-oxidant and anti-inflammatory against the impact of cerebral ischemia and reperfusion injury.
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Affiliation(s)
- Jin Yu
- a Department of Regenerative Medicine and Cell Biology , Medical University of South Carolina , Charleston , SC , USA
| | - Hong Zhu
- a Department of Regenerative Medicine and Cell Biology , Medical University of South Carolina , Charleston , SC , USA
| | - Sebastiano Gattoni-Celli
- b Department of Radiation Oncology , Medical University of South Carolina , Charleston , SC , USA.,c Ralph H. Johnson VA Medical Center , Charleston , SC , USA
| | - Saeid Taheri
- a Department of Regenerative Medicine and Cell Biology , Medical University of South Carolina , Charleston , SC , USA
| | - Mark Stephen Kindy
- a Department of Regenerative Medicine and Cell Biology , Medical University of South Carolina , Charleston , SC , USA.,c Ralph H. Johnson VA Medical Center , Charleston , SC , USA
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194
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Hwang GH, Jeon YJ, Han HJ, Park SH, Baek KM, Chang W, Kim JS, Kim LK, Lee YM, Lee S, Bae JS, Jee JG, Lee MY. Protective effect of butylated hydroxylanisole against hydrogen peroxide-induced apoptosis in primary cultured mouse hepatocytes. J Vet Sci 2015; 16:17-23. [PMID: 25798044 PMCID: PMC4367145 DOI: 10.4142/jvs.2015.16.1.17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 08/20/2014] [Accepted: 07/10/2014] [Indexed: 01/12/2023] Open
Abstract
Butylated hydroxyanisole (BHA) is a synthetic phenolic compound consisting of a mixture of two isomeric organic compounds: 2-tert-butyl-4-hydroxyanisole and 3-tert-butyl-4-hydroxyanisole. We examined the effect of BHA against hydrogen peroxide (H2O2)-induced apoptosis in primary cultured mouse hepatocytes. Cell viability was significantly decreased by H2O2 in a dose-dependent manner. Additionally, H2O2 treatment increased Bax, decreased Bcl-2, and promoted PARP-1 cleavage in a dose-dependent manner. Pretreatment with BHA before exposure to H2O2 significantly attenuated the H2O2-induced decrease of cell viability. H2O2 exposure resulted in an increase of intracellular reactive oxygen species (ROS) generation that was significantly inhibited by pretreatment with BHA or N-acetyl-cysteine (NAC, an ROS scavenger). H2O2-induced decrease of cell viability was also attenuated by pretreatment with BHA and NAC. Furthermore, H2O2-induced increase of Bax, decrease of Bcl-2, and PARP-1 cleavage was also inhibited by BHA. Taken together, results of this investigation demonstrated that BHA protects primary cultured mouse hepatocytes against H2O2-induced apoptosis by inhibiting ROS generation.
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Affiliation(s)
- Geun Hye Hwang
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Korea
| | - Yu Jin Jeon
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Korea
| | - Ho Jae Han
- Department of Veterinary Physiology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Soo Hyun Park
- Department of Veterinary Physiology, College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Korea
| | - Kyoung Min Baek
- Department of Cardiovascular and Neurologic Disease, College of Oriental Medicine, Daegu Haany University, Daegu 706-828, Korea
| | - Woochul Chang
- Department of Biology Education, College of Education, Pusan National University, Busan 609-735, Korea
| | - Joong Sun Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Korea. ; Department of Veterinary Anatomy, College of Veterinary Medicine, Chonnam National University, Gwangju 500-757, Korea
| | - Lark Kyun Kim
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - You-Mie Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Korea
| | - Sangkyu Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Korea
| | - Jong-Sup Bae
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Korea
| | - Jun-Goo Jee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Korea
| | - Min Young Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 702-701, Korea
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195
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Mitochondria and redox homoeostasis as chemotherapeutic targets of Araucaria angustifolia (Bert.) O. Kuntze in human larynx HEp-2 cancer cells. Chem Biol Interact 2015; 231:108-18. [PMID: 25770932 DOI: 10.1016/j.cbi.2015.03.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 02/24/2015] [Accepted: 03/03/2015] [Indexed: 12/31/2022]
Abstract
Natural products are among one of the most promising fields in finding new molecular targets in cancer therapy. Laryngeal carcinoma is one of the most common cancers affecting the head and neck regions, and is associated with high morbidity rate if left untreated. The aim of this study was to examine the antiproliferative effect of Araucaria angustifolia on laryngeal carcinoma HEp-2 cells. The results showed that A. angustifolia extract (AAE) induced a significant cytotoxicity in HEp-2 cells compared to the non-tumor human epithelial (HEK-293) cells, indicating a selective activity of AAE for the cancer cells. A. angustifolia extract was able to increase oxidative damage to lipids and proteins, and the production of nitric oxide, along with the depletion of enzymatic antioxidant defenses (superoxide dismutase and catalase) in the tumor cell line. Moreover, AAE was able to induce DNA damage, nuclear fragmentation and chromatin condensation. A significant increase in the Apoptosis Inducing Factor (AIF), Bax, poly-(ADP-ribose) polymerase (PARP) and caspase-3 cleavage expression were also found. These effects could be related to the ability of AAE to increase the production of reactive oxygen species through inhibition of the mitochondrial electron transport chain complex I activity and ATP production by the tumor cells. The phytochemical analysis of A. angustifolia, performed using High Resolution Mass Spectrometry (HRMS) in MS and MS/MS mode, showed the presence of dodecanoic and hexadecanoic acids, and phenolic compounds, which may be associated with the chemotherapeutic effect observed in this study.
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196
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Luo G, Yang Y, Zhou M, Ye Q, Liu Y, Gu J, Zhang G, Luo Y. Novel 2-arylbenzofuran dimers and polyisoprenylated flavanones from Sophora tonkinensis. Fitoterapia 2014; 99:21-7. [PMID: 25173460 DOI: 10.1016/j.fitote.2014.08.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 08/19/2014] [Accepted: 08/21/2014] [Indexed: 12/30/2022]
Abstract
Two novel 2-arylbenzofuran dimers, shandougenines A (1) and B (2), and two new polyisoprenylated flavanones 3 (shandougenine C) and 4 (shandougenine D) were isolated from the 95% EtOH extract of Sophora tonkinensis, together with 18 known compounds. Their structures were determined on the basis of spectral data interpretation and by comparing the spectral data with that reported previously for known compounds. Shandougenine A (1) is a unique dimeric 2-arylbenzofuran with a C-3C-5‴ bond linkage. Shandougenine B (2) is the first naturally occurring dimeric 2-arylbenzofuran with a novel C-3C-3″ bond linkage. Compound 1 showed moderate DPPH free radical scavenging capacity, whereas 2 has stronger DPPH free radical and ABTS cation radical scavenging capacity than Vc. Compounds 12, 19, and 20 showed parallel DPPH free radical scavenging capacity with Vc. Compounds 1, 3, 4, 19, 20, and 22 have parallel ABTS cation radical scavenging capacity to Vc. Compounds 1, 3, 4, and 18 showed slightly stronger superoxide anion radical scavenging capacity than the known flavanone luteolin. The antioxidant activities of shandougenines A (1) and B (2) indicated that compounds 1 and 2 may represent novel scaffolds for the development of new antioxidants.
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Affiliation(s)
- Guoyong Luo
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Yun Yang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Min Zhou
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China
| | - Qi Ye
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China
| | - Yan Liu
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China
| | - Jian Gu
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China
| | - Guolin Zhang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China
| | - Yinggang Luo
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, 9 Section 4, Renmin Road South, Chengdu 610041, People's Republic of China.
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197
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Affiliation(s)
- Junji Terao
- Department of Food Science, Institute of Health Biosciences, The University of Tokushima Graduate School, Graduate school of Nutritional Science, The University of Tokushima, Tokushima 770-8503, Japan.
| | - Helmut Sies
- Heinrich-Heine-Universitaet Duesseldorf, Institut fuer Biochemie und Molekularbiologie I, Postfach 101007, 40225 Duesseldorf, Germany.
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